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YPF Sociedad Anonima

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FY2007 Annual Report · YPF Sociedad Anonima
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UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 

FORM 20-F 

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) 
OF THE SECURITIES EXCHANGE ACT OF 1934 
For the fiscal year ended December 31, 2007 
Commission file number: 1-12102 

YPF Sociedad Anónima 

(Exact name of registrant as specified in its charter) 

Republic of Argentina 
(Jurisdiction of incorporation or organization) 

Avenida Pte. R. Sáenz Peña 777 
C1035AAC Ciudad Autónoma de Buenos Aires, Argentina 
(54-11) 4329-2000 
(Address of principal executive offices) 

Securities registered or to be registered pursuant to Section 12(b) of the Act: 

Title of Each Class

American Depositary Shares, each representing one Class D Share, par value 10 pesos per share
Class D Shares 
___________ 
*  Listed not for trading but only in connection with the registration of American Depositary Shares.

Securities registered or to be registered pursuant to Section 12(g) of the Act: None 
Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act: None 

Name of Each Exchange
on Which Registered
  New York Stock Exchange
  New York Stock Exchange*

The number of outstanding shares of each class of stock of YPF Sociedad Anónima as of December 31, 2007 was: 

Class A Shares
Class B Shares
Class C Shares
Class D Shares

3,764
7,624
105,736
393,195,669
393,312,793

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes     No (cid:54) 

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 OR 
15(d) of the Securities Exchange Act of 1934.

Yes     No (cid:54) 

Note – Checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 from their 
obligations under those Sections. 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange 
Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been 
subject to such filing requirements for the past 90 days. 

Yes (cid:54) No  

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “accelerated filer and large 
accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ⌧ 

  Accelerated filer  (cid:134) 

   Non-accelerated filer  (cid:134)

Indicate by check mark which financial statement item the registrant has elected to follow.

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act) 

Item 17     Item 18 (cid:54) 

Yes     No (cid:54) 

  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
TABLE OF CONTENTS 

Conversion Table 
References 
Disclosure of Certain Information 
Forward-Looking Statements 
Oil and Gas Terms 
PART I 
ITEM 1.    Identity of Directors, Senior Managers and Advisers
ITEM 2.    Offer Statistics and Expected Timetable 
ITEM 3.    Key Information 

  Selected Financial Data 
  Risk Factors 

ITEM 4.    Information on the Company 

  History and Development of YPF 
  The Argentine Market 
  History of YPF 
  Business Segments 
  Exploration and Production 
  Exploration and Development Activities 
  Refining and Marketing 
  Chemicals 
  Research and Development 
  Competition 
  Environmental Matters 
  Property, Plant and Equipment 
  Regulatory Framework and Relationship with the Argentine Government

ITEM 4A. Unresolved Staff Comments 
ITEM 5.    Operating and Financial Review and Prospects 

  Overview 
  Presentation of Financial Information 
  Segment Reporting 
  Factors Affecting Our Operations 
  Critical Accounting Policies 
  Principal Income Statement Line Items 

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Results of Operations 
Liquidity and Capital Resources 
Off-Balance Sheet Arrangements 
ITEM 6.  Directors, Senior Management and Employees 

Board of Directors 
The Audit Committee 
Independence of the Members of our Board of Directors and Audit Committee
Disclosure Committee 
Executive Officers 
Compliance with NYSE Listing Standards on Corporate Governance
Compensation of Directors and Officers 
Supervisory Committee 
Employee Matters 

ITEM 7.  Major Shareholders and Related Party Transactions

Share Purchase Agreement and Related Financing Agreements
Option Agreements 
Shareholders’ Agreement 
Registration Rights and Related Agreements 
Related Party Transactions 
Argentine Law Concerning Related Party Transactions

ITEM 8.  Financial Information 
Financial Statements 
Legal Proceedings 
Dividends Policy 

ITEM 9.  The Offer and Listing 

Shares and ADSs 
Argentine Securities Market 

ITEM 10. Additional Information 

Memorandum and Articles of Association 
Directors 
Foreign Investment Legislation 
Dividends 
Amount Available for Distribution 
Preemptive and Accretion Rights 
Voting of the Underlying Class D Shares 
Certain Provisions Relating to Acquisitions of Shares
Taxation 
Argentine Tax Considerations 
United States Federal Income Tax Considerations
Available Information 

ITEM 11. Quantitative and Qualitative Disclosures about Market Risk
ITEM 12. Description of Securities Other than Equity Securities
PART II 
ITEM 13. Defaults, Dividend Arrearages and Delinquencies
ITEM 14. Material Modifications to the Rights of Security Holders and Use of Proceeds
ITEM 15. Controls and Procedures 
ITEM 16. 

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ITEM 16A. Audit Committee Financial Expert 
ITEM 16B. Code of Ethics 
ITEM 16C. Principal Accountant Fees and Services 
ITEM 16D. Exemptions from the Listing Standards for Audit Committees
ITEM 16E. Purchases of Equity Securities by the Issuer and Affiliated Purchasers
PART III 
ITEM 17. Financial Statements 
ITEM 18. Financial Statements 
ITEM 19. Exhibits 
SIGNATURES 

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Conversion Table 

1 ton = 1 metric ton= 1,000 kilograms = 2,204 pounds 
1 barrel = 42 U.S. gallons 
1 ton of oil = approximately 7.3 barrels (assuming a specific gravity of 34 degrees API (American Petroleum Institute)) 
1 barrel of oil equivalent = 5,615 cubic feet of gas = 1 barrel of oil, condensate or natural gas liquids 
1 kilometer = 0.63 miles 
1 million Btu = 252 termies 
1 cubic meter of gas = 35.3147 cubic feet of gas 
1 cubic meter of gas = 10 termies 
1000 acres = approximately 4 square kilometers 

References 

YPF Sociedad Anónima is a stock corporation organized under the laws of the Republic of Argentina (“Argentina”). As used in this annual report, 

“YPF,” “the company,” “we,” “our” and “us” refer to YPF Sociedad Anónima and its controlled and jointly controlled companies or, if the context 
requires, its predecessor companies. “YPF Sociedad Anónima” refers to YPF Sociedad Anónima only. “Repsol YPF” refers to Repsol YPF, S.A. and its 
consolidated companies, including YPF, unless otherwise specified. We maintain our financial books and records and publish our financial statements in 
Argentine pesos. In this annual report, references to “pesos” or “Ps.” are to Argentine pesos, and references to “dollars,” “U.S. dollars” or “U.S.$” are to 
United States dollars. 

Disclosure of Certain Information 

In this annual report, references to “Audited Consolidated Financial Statements” are to YPF’s audited consolidated balance sheets as of December 

31, 2007, 2006 and 2005, and YPF’s audited consolidated statements of income for the three years ended December 31, 2007, 2006 and 2005. 

Unless otherwise indicated, the information contained in this annual report reflects: 

•   

•   

for the subsidiaries that were consolidated using the global integration method at the date or for the periods indicated, 100% of the assets, 
liabilities and results of operations of such subsidiaries without excluding minority interests, and

for those subsidiaries whose results were consolidated using the proportional integration method, a pro rata amount of the assets, liabilities and 
results of operations for such subsidiaries at the date or for the periods indicated. For information regarding consolidation, see Note 1 to the 
Audited Consolidated Financial Statements. 

The Audited Consolidated Financial Statements and other amounts derived from such Audited Consolidated Financial Statements, included in this 
annual report, reflect the effect of changes in the purchasing power of money by the application of the method for remeasurement in constant pesos. All 
the amounts were remeasured to constant pesos as of February 28, 2003. See Note 1 to the Audited Consolidated Financial Statements. 

Forward-Looking Statements  

This annual report, including any documents incorporated by reference, contains statements that we believe constitute forward-looking statements 

within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may include statements regarding the 
intent, belief or current expectations of us and our management, including statements with respect to trends affecting our financial condition, financial 
ratios, results of operations, business, strategy, geographic concentration, production volume and reserves, as well as our plans with respect to capital 
expenditures, business strategy, geographic concentration, cost savings, investments and dividends payout policies. These statements are not a guarantee 
of future performance and are subject to material risks, uncertainties, changes and other factors which may be beyond our control or may be difficult to 
predict.  

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Accordingly, our future financial condition, prices, financial ratios, results of operations, business, strategy, geographic concentration, production 
volumes, reserves, capital expenditures, cost savings, investments and dividend policies could differ materially from those expressed or implied in any 
such forward-looking statements. Such factors include, but are not limited to, currency fluctuations, the price of petroleum products, the ability to realize 
cost reductions and operating efficiencies without unduly disrupting business operations, replacement of hydrocarbon reserves, environmental, 
regulatory and legal considerations and general economic and business conditions in Argentina, as well as those factors described in the filings made by 
YPF and its affiliates with the Securities and Exchange Commission, in particular, those described in “Item 3. Key Information—Risk Factors” below 
and “Item 5. Operating and Financial Review and Prospects.” YPF does not undertake to publicly update or revise these forward-looking statements 
even if experience or future changes make it clear that the projected results or condition expressed or implied therein will not be realized. 

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Oil and Gas Terms 

Oil and gas reserves definitions used in this annual report are in accordance with the reserves definitions of Rule 4-10(a) (1)-(17) of Regulations S-

X of the SEC. 

The definitions of Reserves Estimate, Reserves Audit and Reserves Review as given below and used hereunder are not terms defined under U.S. 
Securities and Exchange Commission (“SEC”) Rules or Regulations and are terms used by YPF in this annual report as defined herein and consequently 
such definitions may be defined and used differently by other companies. 

For the purpose of this annual report, any reserves estimate, or any independent reserves audit or any reserves review invoked hereunder, are in 

accordance with the oil and gas reserves definitions of Rule 4-10(a) (1)-(17) of Regulations S-X of the SEC. 

The following terms have the meanings shown below unless the context indicates otherwise: 

“acreage”: The total area, expressed in acres or km2, over which we have interests in exploration or production. Net acreage is our interest in the 

relevant exploration or production area. 

“concession”: A grant of access for a defined area and time period that transfers certain entitlements to produce hydrocarbons from the host 

country to an enterprise. The company holding the concession generally has rights and responsibilities for exploration, development, production and sale 
of hydrocarbon. Typically, the concession is granted under a legislated fiscal system where the host country collects royalties on the estimated value at 
the wellhead of crude oil production and the natural gas volume commercialized and taxes or fees on profits earned. 

“exploratory well”: A well drilled to find and produce oil or gas in an unproved area, to find a new reservoir in a field previously found to be 

productive of oil or gas in another reservoir, or to extend a known reservoir. 

“hydrocarbons”: Crude oil and natural gas. 

“natural gas liquids,” or “NGL”: The portions of gas from a reservoir that are liquefied at the surface in separators, field facilities, or gas 

processing plants. NGL from gas processing plants is also called liquefied petroleum gas, or “LPG.” 

“oil and gas producing activities”: 

(i) 

Such activities include: 

A.  The search for crude oil, including condensate and natural gas liquids, or natural gas (“oil and gas”) in their natural states and original 

locations. 

B.  The acquisition of property rights or properties for the purpose of further exploration and/or for the purpose of removing the oil or gas 

from existing reservoirs on those properties.

C.  The construction, drilling and production activities necessary to retrieve oil and gas from their natural reservoirs, and the acquisition, 
construction, installation, and maintenance of field gathering and storage systems – including lifting the oil and gas to the surface and 
gathering, treating, field processing (as in the case of processing gas to extract liquid hydrocarbons) and field storage. For purposes of this 
section, the oil and gas production function shall normally be regarded as terminating at the outlet valve on the lease or field storage tank; 
if unusual physical or operational circumstances exist, it may be appropriate to regard the production function as terminating at the first 
point at which oil, gas or gas liquids are delivered to a main pipeline, a common carrier, a refinery, or a marine terminal.

(ii) 

Oil and gas producing activities do not include: 

A.  The transporting, refining and marketing of oil and gas;

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B.  Activities relating to the production of natural resources other than oil and gas;

C.  The production of geothermal steam or the extraction of hydrocarbons as a by-product of the production of geothermal steam or 

associated geothermal resources as defined in the Geothermal Steam Act of 1970; or

D.  The extraction of hydrocarbons from shale, tar sands or coal.

“proved oil and gas reserves”: Proved oil and gas reserves are the estimated quantities of crude oil, natural gas, and natural gas liquids that 
geological and engineering data demonstrate with reasonable certainty to be recoverable in future years from known reservoirs under existing economic 
and operating conditions, i.e., prices and costs as of the date the estimate is made. Prices include consideration of changes in existing prices provided 
only by contractual arrangements, but not on escalations based upon future conditions. 

i)  Reservoirs are considered proved if economic productibility is supported by either actual production or conclusive formation test. The area of a 

reservoir considered proved includes: 

A. 

B. 

that portion delineated by drilling and defined by gas-oil and/or oil-water contacts, if any; and

the immediately adjoining portions not yet drilled, but which can be reasonably judged as economically productive on the basis of 
available geological and engineering data. In the absence of information on fluid contacts, the lowest known structural occurrence of 
hydrocarbons controls the lower proved limit of the reservoir.

ii) 

Reserves that can be produced economically through application of improved recovery techniques (such as fluid injection) are included in the 
“proved” classification when successful testing by a pilot project, or the operation of an installed program in the reservoir, provides support for 
the engineering analysis on which the project or program was based.

iii)           Estimates of proved reserves do not include the following: 

A.  oil that may become available from known reservoirs but is classified separately as “indicated additional reserves”; 

B.  crude oil, natural gas, and natural gas liquids, the recovery of which is subject to reasonable doubt because of uncertainty as to geology, 

reservoir characteristics, or economic factors;

C.  crude oil, natural gas, and natural gas liquids, that may occur in undrilled prospects; and

D.  crude oil, natural gas, and natural gas liquids, that may be recovered from oil sales, coal, gilsonite and other such sources.

“proved developed reserves”: Proved developed oil and gas reserves are reserves that can be expected to be recovered through existing wells with 
existing equipment and operating methods. Additional oil and gas expected to be obtained through the application of fluid injection or other improved 
recovery techniques for supplementing the natural forces and mechanisms of primary recovery should be included as “proved developed reserves” only 
after testing by a pilot project or after the operation of an installed program has confirmed through production response that increased recovery will be 
achieved. 

“proved undeveloped reserves”: Proved undeveloped oil and gas reserves are reserves that are expected to be recovered from new wells on 

undrilled acreage, or from existing wells where a relatively major expenditure is required for recompletion. Reserves on undrilled acreage shall be 
limited to those drilling units offsetting productive units that are reasonably certain of production when drilled. Proved reserves for other undrilled units 
can be claimed only where it can be demonstrated with certainty that there is continuity of production from the existing productive formation. Under no 
circumstances should estimates for proved undeveloped reserves be attributable to any acreage for which an application of fluid injection or other 
improved recovery technique is contemplated, unless such techniques have been proved effective by actual tests in the area and in the same reservoir. 

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“recovery factor”: The recoverable amount of the original or residual estimated hydrocarbons in place in a reservoir, expressed as a percentage of 

total hydrocarbons in place. 

“refining capacity”: The crude oil processing capacity of refineries, expressed as an average over a period of time for the quality of oil and under 

conditions for which the facility was designed. Such capacity could be improved through the application of updated operation and maintenance 
techniques, increased availability, equipment revamps, de-bottlenecking, and the use of higher qualities of crude oil than those for which the refinery 
was originally designed, among other improvements. 

“reserves audit”: A reserves audit is the process of reviewing certain factual matters and assumptions on which an estimate of reserves and/or 
reserves information prepared by others has been based and the rendering of an opinion about (1) the appropriateness of the methodologies employed, 
(2) the adequacy and quality of the data relied upon, (3) the depth and thoroughness of the reserves estimation process, (4) the classification of reserves 
appropriate to the relevant definitions used, and (5) the reasonableness of the estimated reserves quantities and/or the reserves information, and is, 
therefore, free of material misstatement. The term “reasonableness” cannot be defined with precision but reflects a quantity and/or value difference as 
contemplated under “Internal Control on Reserves and Reserves Audits.” Often a reserves audit includes a detailed review of certain critical assumptions 
and independent assessments with acceptance of other information less critical to the reserves estimation. Typically, a reserves audit letter should be of 
sufficient rigor to determine the appropriate reserves classification for all reserves in the property set evaluated and to clearly state the reserves 
classification system being utilized. In contrast to the term “audit” as used in a financial sense, a reserves audit is generally less rigorous than a reserves 
report. 

The estimation of reserves and other reserves information is an imprecise science due to the many unknown geological and reservoir factors that 

can only be estimated through sampling techniques. Since reserves are therefore only estimates, they cannot be audited for the purpose of verifying 
exactness. Instead, reserves information is audited for the purpose of reviewing in sufficient detail the policies, procedures, methods and data used by us 
in estimating our reserves information so that the reserves auditors may express an opinion as to whether, in the aggregate, the reserves information 
furnished by us is reasonable within established and predetermined tolerances and has been estimated and presented in conformity with generally 
accepted petroleum engineering and evaluation principles and within the rules and regulations of the SEC. 

In some cases, the auditing procedure may require independent estimates of reserves information for some or all properties. The desirability of such 
re-estimation will be determined by the reserves auditor exercising his or her professional judgment in arriving at an opinion as to the reasonableness of 
our reserves information. In those cases, an external reservoir engineer makes an independent comprehensive evaluation of reserves by interpreting and 
assessing all the pertinent data to generate such engineer’s own cash flow analysis and proved reserves estimate. The degree of assurance of such 
independent estimates cannot usually be provided with numeric precision. 

The main product of these external engineering evaluations is a report that includes the engineer’s actual proved reserves estimates and economic 
evaluation. This report may also, at our request, include maps, logs, or other technical backup used by the external reservoir engineer, with an opinion 
letter that includes the reserves auditor’s findings, conformance or not with the applicable principles, definitions and procedures for estimating reserves. 
This opinion may also, at our request, include conclusions and recommendations. In the aforementioned case where the auditor performs an independent 
estimate of reserves information, we will call it an external reserves certification. 

In all cases, in the opinion letter or report issued by the auditor, the reserves auditor states his or her professional standing and professional 

affiliation as a registered or certified professional from an appropriate governmental authority or professional organization. 

A reserves auditor is a professional who has sufficient educational background, professional training and professional experience to enable him or 
her to exercise prudent professional judgment while in charge of the conduct of an audit of reserves information estimated by others. The determination 
of whether a reserves auditor is professionally qualified is made on an individual-by-individual basis with reference to the recognition and respect of his 
or her peers. A reserves auditor would normally be considered by us to be qualified if he or she (i) has a minimum of 10 years’ practical experience in 
petroleum engineering or petroleum production geology, with at least  

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five years of such experience in charge of the estimations and evaluation of reserves information; and (ii) either (A) has obtained, from a college or 
university of recognized stature, a bachelor’s or advanced degree in petroleum engineering, geology or other discipline of engineering or physical 
science, or (B) has received, and is maintaining in good standing, a registered or certified professional engineer’s license or a registered or certified 
professional geologist’s license, or the equivalent thereof, from an appropriate governmental authority or professional organization. 

Our standard of independence for reserves auditors is that he or she must not have any financial interest in the properties under evaluation. This is 

in order that there is no incentive for his or her reports to be outcome-oriented because there is no direct economic benefit for him or her as a 
consequence of the results of his or her work. An independent reserves auditor’s compensation is based only on professional services carried out to 
deliver an unbiased analysis suitable for the public and financial communities. We also require that a statement of such independence is included in the 
auditor’s report. 

The meaning of the terms “reserves audit,” “reserves report,” “external reserves certification” among others may not be comparable to other similar 

terms used by other companies in respect of proved reserves. 

“reserves estimate”: The process whereby a qualified reserves estimator performs a comprehensive evaluation by interpreting and assessing all the 
pertinent data to generate such proved reserves estimates and cash flow analysis. The main product of this evaluation results in a report that includes: (i) 
the actual reserve estimate quantities, (ii) the future producing rates from such reserves, (iii) the future net revenues from such reserves, and (iv) the 
present value of such future net revenue. This report may also include maps, logs or other technical backup used by the estimator. 

“reserves review”: The process whereby a qualified reserves professional reviewer conducts a high-level assessment of reserves information to 

determine if it is plausible. The steps consist primarily of: 

inquiry; 
analytical procedures; 
analysis; 
review of historical reserves performance; and 
discussions with reserves management staff. 

“plausible” means the reserves data appearing to be worthy of belief based on the information obtained by a reserves estimator or by an 
independent qualified reserves auditor in carrying out the aforementioned steps. It may result in a statement like “Nothing came to my attention that 
would indicate the reserves information has not been prepared and presented in accordance with the applicable principles and definitions.” 

Our standard for an “Independent Qualified Reserves Auditor” is that an Independent Qualified Reserves Auditor is a professional who has 
sufficient educational background, professional training and professional experience to enable him or her to exercise prudent professional judgment 
while in charge of the conduct of an audit of reserves information estimated by others. The determination of whether a Reserves Auditor is 
professionally qualified is made on an individual-by-individual basis with reference to the recognition and respect of his or her peers. A Reserves 
Auditor would normally be considered by us to be qualified if he or she (i) has a minimum of 10 years’ practical experience in petroleum engineering or 
petroleum production geology, with at least 5 years of such experience in charge of the estimations and evaluation of reserves information; and (ii) either 
(A) has obtained, from a college or university of recognized stature, a bachelor’s or advanced degree in petroleum engineering, geology or other 
discipline of engineering or physical science, or (B) has received, and is maintaining in good standing, a registered or certified professional engineer’s 
license or a registered or certified professional geologist’s license, or the equivalent thereof, from an appropriate governmental authority or professional 
organization. 

Our standard of independence for Consulting Reserves Auditors is that he or she must not have any financial interest in the properties under 
evaluation. This is in order that there is no incentive for his or her reports to be outcome-oriented because there is no direct economic benefit for him or 
her as a consequence of the results of his or her work. The Independent Qualified Reserves Auditor’s compensation is based only on professional 
services  

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carried out to deliver an unbiased analysis suitable for the public and financial communities. We also require that a statement of such independence be 
included in the auditor’s report. 

Reviews do not require examination of the detailed documentation that supports the reserves information, unless this information does not appear to 

be plausible. A reserves review, due to the limited nature of the investigation involved, does not provide the level of assurance provided by a reserves 
estimate or a reserves audit. Though reserves reviews can be done for specific applications, they are not a substitute for an audit or an estimate. 

Abbreviations: 

“bbl” 

“Bcf” 

“Bcm” 

“boe” 

“boe/d” 

“Condensate” 

“Gas” 

“GWh” 

“HP” 

“km” 

“km2” 

“m” 

“m3” 

“mbbl/d” 

“mboe/d” 

“mcf” 

“mcm” 

“mm” 

“mmbbl” 

“mmboe” 

“mmboe/d” 

“mmBtu” 

“mmcf” 

Barrels

Billion cubic feet ≡ 109 cubic feet

Billion cubic meters ≡ 109 cubic meters

Barrels of oil equivalent

Barrels of oil equivalent per day

Mixture of hydrocarbons that exist in the gaseous phase at original temperature and pressure of 
the reservoir, but when produced condense into liquid phase at temperature and pressure 
associated with surface production equipment

Natural gas

Gigawatt hours

Horse Power

Kilometers

Square kilometers

Thousand

Cubic meter

Thousand barrels per day

Thousand barrels of oil equivalent per day

Thousand cubic feet

Thousand cubic meters

Million

Million barrels

Million barrels of oil equivalent

Million barrels of oil equivalent per day

Million British thermal units

Million cubic feet

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“mmcf/d” 

“mmcm” 

“mmcm/d” 

“mtn” 

“MW” 

“Oil” 

“WTI” 

“USA” 

Million cubic feet per day

Million cubic meters

Million cubic meters per day

Thousand tons

Megawatts

Crude oil, condensate and natural gas liquids

West Texas Intermediate

United States

Oil and gas reserves definitions used in this annual report are in accordance with the reserves definitions of Rule 4-10(a) (1)-(17) of Regulation S-X 

of the SEC. 

The definitions of reserves estimate, reserves audit and reserves review as given below and used hereunder are not terms defined under SEC Rules 

or Regulations and are terms used by us in this annual report as defined herein and consequently such terms may be defined and used differently by other 
companies. 

For the purpose of this annual report, any reserves estimate, or any independent reserves audit or any reserves review invoked hereunder, are in 

accordance with the oil and gas reserves definitions of Rule 4-10(a) (1)-(17) of Regulation S-X of the SEC. 

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PART I 

ITEM 1. Identity of Directors, Senior Managers and Advisers 

Not applicable. 

ITEM 2. Offer Statistics and Expected Timetable 

Not applicable. 

ITEM 3. Key Information 

Selected Financial Data 

The following tables present our selected financial and operating data. You should read this information in conjunction with our Audited Financial 

Statements and related notes, and the information under “Item 5. Operating and Financial Review and Prospects” included elsewhere in this annual 
report. 

The financial data as of December 31, 2007, 2006 and 2005 and for the years then ended is derived from our Audited Consolidated Financial 
Statements, which are included in this annual report. The financial data as of and for the years ended December 31, 2004 and 2003 is derived from our 
audited financial statements, which are neither included nor incorporated by reference in this annual report. Our audited financial statements have been 
prepared in accordance with generally accepted accounting principles in Argentina, which we refer to as Argentine GAAP and which differ in certain 
significant respects from generally accepted accounting principles in the United States, which we refer to as U.S. GAAP. Notes 13, 14 and 15 to our 
Audited Consolidated Financial Statements provide a description of the significant differences between Argentine GAAP and U.S. GAAP, as they relate 
to us, and a reconciliation to U.S. GAAP of net income and shareholders’ equity as of December 31, 2007, 2006 and 2005 and for the years then ended. 

In this annual report, except as otherwise specified, references to “$,” “U.S.$” and “dollars” are to U.S. dollars, and references to “Ps.” and “pesos” 

are to Argentine pesos. Solely for the convenience of the reader, peso amounts as of and for the year ended December 31, 2007  have been translated 
into U.S. dollars at the exchange rate quoted by the Argentine Central Bank (Banco Central de la República Argentina or Central Bank) on December 
28, 2007 of Ps.3.15 to U.S.$1.00 (the last quoted rate in December 2007), unless otherwise specified. The exchange rate quoted by Central Bank on 
April 10, 2008 was Ps. 3.16 to U.S.$1.00. The U.S. dollar equivalent information should not be construed to imply that the peso amounts represent, or 
could have been or could be converted into U.S. dollars at such rates or any other rate. See “Item 3. Key Information—Exchange Rates.” 

Certain figures included in this annual report have been subject to rounding adjustments. Accordingly, figures shown as totals may not sum due to 

rounding. 

9

  
  
  
  
  
  
  
  
  
  
  
  
  
  
As of and for Year Ended December 31, 

2005(1) 

2004(1) 

2003(2)

2007

2006

2007
  (in millions of 
U.S.$, except 
for per share 
and per ADS 
data)

(in millions of pesos, 
except for per share 
and per ADS data) 

Consolidated Income Statement Data:
Argentine GAAP(3) 
Net sales(4)(5) 
Gross profit 
Administrative expenses 
Selling expenses 
Exploration expenses 
Operating income 
Income on long-term investments 
Other expenses, net 
Interest expense 
Other financial income (expenses) and holding 

gains (losses), net 

Income from sale of long-term investments 
Reversal (impairment) of other current assets 
Income before income tax 
Income tax 
Net income from continuing operations 
Income on discontinued operations 
Income from sale of discontinued operations 
Net income 
Earnings per share and per ADS(6) 
Dividends per share and per ADS(6) (in pesos) 
Dividends per share and per ADS(6)(7) (in U.S. 
dollars) 
U.S. GAAP 
Operating income 
Net income 
Earnings per share and per ADS(6) (in pesos) 
Consolidated Balance Sheet Data: 
Argentine GAAP(3) 
Cash 
Working capital 
Total assets 
Total debt(8) 
Shareholders’ equity(9) 
U.S. GAAP 
Total assets 
Shareholders’ equity 
Other Consolidated Financial Data: 
Argentine GAAP 
Fixed assets depreciation 
Cash used in fixed asset acquisitions 

25,635
9,814
(674)
(1,797)
(460)
6,883
183
(204)
(213)

667
11
(69)
7,258
(2,801)
4,457
—
—
4,457
11.33
6.00

1.97

5,626
3,667
9.32

118
4,905
35,394
1,425
24,345

37,046
26,241

3,718
5,002

22,901 
11,643 

(552)   
(1,652)   
(280)   
9,161 
39 
(545)   
(459)   

561 
15 
— 
8,772 
(3,410)   
5,362 
— 
— 
5,362 
13.63 
12.40 

4.25 

8,065 
5,142 
13.07 

122 
2,903 
32,224 
1,453 
22,249 

34,748 
24,254 

2,707 
3,722 

19,931
10,719
(463)
(1,403)
(382)
8,471
154
(981)
(221)

359
—
—
7,782
(3,017)
4,765
3
139
4,907
12.48
13.50

4.70

6,550
4,186
10.64

492
3,549
30,922
1,930
21,769

32,540
23,506

2,470
2,867

17,514
9,758
(378)
(1,148)
(277)
7,955
150
(152)
(252)

202
—
—
7,903
(3,290)
4,613
15
—
4,628
11.77
7.60

2.62

7,567
4,435
11.28

355
4,001
32,944
2,998
22,534

34,125
24,334

2,307
2,418

9,239
3,208
(256)
(673)
(166)
2,113
11
(139)
(93)

257
2
22
2,173
(876)
1,297
—
—
1,297
3.30
n.a.

n.a.

1,643
1,056
n.a.

62
1,296
12,096
316
8,273

12,935
9,228

1,314
1,957

29,104
10,104
(805)
(2,120)
(522)
6,657
34
(439)
(292)

810
5
69
6,844
(2,758)
4,086

4,086
10.39
6.00

1.93

5,176
3,325
8.45

196
4,081
38,102
994
26,060

40,746
29,067

4,139
6,163

10

  
  
 
  
  
 
  
 
   
 
     
  
 
   
     
   
     
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
 
  
   
      
  
  
  
  
 
  
   
      
   
      
  
  
  
  
  
  
  
  
  
  
   
      
  
  
  
  
   
      
   
      
  
  
  
  
____________ 
(1) 

Consolidated income and balance sheet data for the years ended December 31, 2005 and 2004 set forth above include the retroactive effect 
from the application of new accounting rules in Argentina effective since January 1, 2006.

(2) 

(3) 

(4) 

(5) 

(6) 

(7) 

(8) 

(9) 

Consolidated income and balance sheet data for the year ended December 31, 2003 set forth above do not include the retroactive effect from 
the application of new accounting rules in Argentina, which was not material.

The financial statements reflect the effect of changes in the purchasing power of money by the application of the method for remeasurement in 
constant Argentine pesos set forth in Technical Resolution No. 6 of the Argentine Federation of Professional Councils in Economic Sciences 
(“F.A.C.P.C.E.”) and taking into consideration General Resolution No. 441 of the National Securities Commission (“CNV”), which 
established the discontinuation of the remeasurement of financial statements in constant Argentine pesos as from March 1, 2003. See Note 1 to 
the Audited Consolidated Financial Statements. 

Includes Ps.1,350 million for the year ended December 31, 2007, Ps.1,451 million for the year ended December 31, 2006, Ps.1,216 million for 
the year ended December 31, 2005, Ps.1,122 million for the year ended December 31, 2004 and Ps.760 million for the year ended December 
31, 2003 corresponding to the proportional consolidation of the net sales of investees in which we hold joint control with third parties. See 
Note 13(b) to the Audited Consolidated Financial Statements.

Net sales are net to us after payment of a fuel transfer tax, turnover tax and, from 2002, customs duties on hydrocarbon exports. Royalties with 
respect to our production are accounted for as a cost of production and are not deducted in determining net sales. See Note 2(g) to the Audited 
Consolidated Financial Statements. 

Information has been calculated based on outstanding capital stock of 393,312,793 shares. Each ADS represents one Class D share. There 
were no differences between basic and diluted earnings per share and ADS for any of the years disclosed. 

Amounts expressed in U.S. dollars are based on the exchange rate as of the date of payment. For periods in which more than one dividend 
payment was made, the amounts expressed in U.S. dollars are based on exchange rates at the date of each payment. 

Total debt under Argentine GAAP includes nominal amounts of long-term debt of Ps.523 million as of December 31, 2007, Ps.510 million as 
of December 31, 2006, Ps.1,107 million as of December 31, 2005, Ps.1,684 million as of December 31, 2004 and Ps.2,085 million as of 
December 31, 2003. 

Our subscribed capital as of December 31, 2007 is represented by 393,312,793 shares of common stock and divided into four classes of shares, 
with a par value of Ps.10 and one vote per share. These shares are fully subscribed, paid-in and authorized for stock exchange listing.

Exchange Rates 

From April 1, 1991 until the end of 2001, the Convertibility Law (Law No. 23,928) established a fixed exchange rate under which the Central Bank 
was obligated to sell U.S. dollars at one peso per U.S. dollar. On January 6, 2002, the Argentine Congress enacted the Public Emergency Law (Law No. 
25,561, the Public Emergency and Foreign Exchange System Reform Law), formally putting an end to the Convertibility Law regime and abandoning 
over 10 years of U.S. dollar-peso parity. The Public Emergency Law, which has been extended until December 31, 2008, grants the executive branch of 
the Argentine government the power to set the exchange rate between the peso and foreign currencies and to issue regulations related to the foreign 
exchange market. Following a brief period during which the Argentine government established a temporary dual exchange rate system pursuant to the 
Public Emergency Law, the peso has been allowed to float freely against other currencies since February 2002 although the government has the power to 
intervene by buying and selling foreign currency for its own account, a practice in which it engages on a regular basis. 

The following table sets forth the annual high, low, average and period-end exchange rates for U.S. dollars for the periods indicated, expressed in 
nominal pesos per U.S. dollar, based on rates quoted by the Central Bank. The Federal Reserve Bank of New York does not report a noon buying rate for 
Argentine pesos. 

Year ended December 31, 

2003 
2004 

Low

Average 
High
(pesos per U.S. dollar) 

Period End

2.76
2.80

3.35     
3.06     

2.94(1)
2.94(1)

2.93
2.98

11

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
  
     
2005 
2006 
2007 

Month 

October 2007 
November 2007 
December 2007 
January 2008 
February 2008 
March 2008 
April 2008(2) 
____________ 
Source: Central Bank 

Low

Average 
High
(pesos per U.S. dollar) 

Period End

2.86
3.03
3.05

3.15
3.12
3.13
3.13
3.15
3.14
3.16

3.04     
3.10     
3.18     

3.18     
3.15     
3.15     
3.16     
3.17     
3.17     
3.17     

2.90(1)
3.07(1)
3.12(1)

3.16
3.14
3.14
3.14
3.16
3.16
3.16

3.03
3.06
3.15

3.15
3.15
3.15
3.16
3.16
3.17
3.16

(1) 

(2) 

Represents the average of the exchange rates on the last day of each month during the period.

Through April 10, 2008. 

No representation is made that peso amounts have been, could have been or could be converted into U.S. dollars at the foregoing rates on any of the 

dates indicated. 

Exchange Controls 

Prior to December 1989, the Argentine foreign exchange market was subject to exchange controls. From December 1989 until April 1991, 

Argentina had a freely floating exchange rate for all foreign currency transactions, and the transfer of dividend payments in foreign currency abroad and 
the repatriation of capital were permitted without prior approval of the Central Bank. From April 1, 1991, when the Convertibility Law became effective, 
until December 21, 2001, when the Central Bank closed the foreign exchange market, the Argentine currency was freely convertible into U.S. dollars. 

On December 3, 2001, the Argentine government imposed a number of monetary and currency exchange control measures through Decree 1570/01, 

which included restrictions on the free disposition of funds deposited with banks and tight restrictions on transferring funds abroad (including the 
transfer of funds to pay dividends) without the Central Bank’s prior authorization subject to specific exceptions for transfers related to foreign trade. 
Since January 2003, the Central Bank has gradually eased these restrictions and expanded the list of transfers of funds abroad that do not require its prior 
authorization (including the transfer of funds to pay dividends). In June 2003, the Argentine government set restrictions on capital flows into Argentina, 
which mainly consisted of a prohibition against the transfer abroad of any funds until 180 days after their entry into the country. In June 2005, the 
government established further restrictions on capital flows into Argentina, including increasing the period that certain incoming funds must remain in 
Argentina to 365 calendar days and requiring that 30% of incoming funds be deposited with a bank in Argentina in a non-assignable, non-interest-
bearing account for 365 calendar days. Under the exchange regulations currently in force, restrictions exist in respect of the repatriation of funds or 
investments by non-Argentine residents. For instance, subject only to limited exceptions, the repatriation by non-Argentine residents of funds received as 
a result of the sale of the Class D shares in the secondary market is subject to a limit of U.S.$500,000 per person per calendar month. In order to 
repatriate such funds abroad, non-Argentine residents also are required to demonstrate that the funds used to make the investment in the Class D shares 
were transferred to Argentina at least 365 days before the proposed repatriation. The transfer abroad of dividend payments is currently authorized by 
applicable regulations to the extent that such dividend payments are made in connection with audited financial statements and are approved by a 
shareholders’ meeting. 

12

 
  
  
  
  
  
  
  
  
  
  
   
  
  
      
      
Risk Factors 

Risks Relating to Argentina 

Argentina’s economy may not continue to grow at current rates or may contract in the future 

The Argentine economy has experienced significant volatility in recent decades, including numerous periods of low or negative growth and high 

and variable levels of inflation and devaluation. Since the most recent crisis of 2001 and 2002, the Argentine economy has grown at a rapid pace during 
recent years, with GDP increasing on a real basis by 8.7% in 2003, 9.0% in 2004, 9.2% in 2005, 8.5% in 2006 and 8.7%, based on preliminary data, in 
2007. However, no assurances can be given that current rates of growth will continue. The Argentine economy remains susceptible to, among other 
things, a decline in commodity prices, limited international financing and investment in infrastructure and an increase in inflation. Sustained inflation in 
Argentina could increase our costs of operation, in particular labor costs, and without a corresponding increase in the price of our products, may 
negatively impact our results of operations and financial condition. Substantially all of our operations, properties and customers are located in Argentina, 
and, as a result, our business is to a large extent dependent upon economic conditions prevailing in Argentina. If economic conditions in Argentina were 
to deteriorate, it would likely have an adverse effect on our financial condition and results of operations. 

13

  
  
  
  
  
  
  
Political and regulatory developments in Argentina may affect our domestic operations 

The Argentine government exercises significant influence over the economy. In particular, the oil and gas industry is subject to extensive 

government regulation and control. As a result, our business is to a large extent dependent upon regulatory and political conditions prevailing in 
Argentina and our results of operations may be materially and adversely affected by regulatory and political changes in Argentina. We currently face 
risks and challenges relating to government regulation and control of the energy sector, including those set forth below and elsewhere in these risk 
factors: 

•   

•   

•   

•   

•   

•   

•   

•   

limitations on our ability to pass increases in international prices of crude oil and other hydrocarbon fuels and exchange rate fluctuations 
through to domestic prices, or to increase local prices of natural gas (in particular for residential customers), gasoline and diesel;

higher taxes on exports of hydrocarbons; 

restrictions on hydrocarbon export volumes driven mainly by the requirement to satisfy domestic demand; 

in connection with the Argentine government’s policy to provide absolute priority to domestic demand, regulatory orders to supply natural gas 
and other hydrocarbon products to the domestic retail market in excess of previously contracted amounts; 

the import of certain hydrocarbon fuels at international market prices to satisfy domestic demand at significantly lower domestic prices;

regulatory developments leading to the imposition of stricter supply requirements, fines or other actions by governmental authorities in 
response to fuel shortages at service stations; 

the implementation or imposition of stricter quality requirements for petroleum products in Argentina; and 

higher taxes on domestic fuel sales not compensated by price increases.

The Argentine government has made certain changes in regulations and policies governing the energy sector to give absolute priority to domestic 

supply at low, stable prices in order to sustain economic recovery. As a result of the above-mentioned changes, for example, on days during which a gas 
shortage occurs, exports of natural gas (which are also affected by other government curtailment orders) and the provision of gas supplies to industries, 
electricity generation plants and service stations selling compressed natural gas are interrupted for priority to be given to residential consumers at lower 
prices. We cannot assure you that changes in applicable laws and regulations, or adverse judicial or administrative interpretations of such laws and 
regulations, will not adversely affect our results of operations. See “Item 4. Information on the Company—Regulatory Framework and Relationship with 
the Argentine Government.” Similarly, we cannot assure you that future government policies aimed at sustaining economic recovery or in response to 
domestic needs will not adversely affect the oil and gas industry. 

In January 2007, Law No. 26,197 was enacted, which, in accordance with Article 124 of the National Constitution, provided that Argentine 
provinces shall be the owners of the hydrocarbon reservoirs located within their territories. Pursuant to the law, the Argentine Congress is charged with 
enacting laws and regulations aimed at developing mineral resources within Argentina, while the provincial governments are responsible for enforcing 
these laws and administering hydrocarbon fields that fall within the territories of their respective provinces. Certain provincial governments, however, 
have construed the provisions of Law No. 26,197 and Article 124 to empower the provinces to enact their own regulations concerning exploration and 
production of oil and gas within their territories. There can be no assurance that regulations or taxes (including royalties) enacted or administered by the 
provinces will not conflict with federal law, and such taxes or regulations may adversely affect our operations and financial condition. 

14

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Limitations on local pricing in Argentina may adversely affect our results of operations 

In recent years, due to regulatory, economic and government policy factors, our domestic gasoline, diesel and other fuel prices have lagged 
substantially behind prevailing international and regional market prices for such products, and our ability to increase prices has been limited. For 
example, in January 2008, diesel import prices were approximately U.S.$700/cubic meter, while the average domestic sales prices were approximately 
U.S.$350/cubic meter before government subsidies. Likewise, the prices at which we sell natural gas in Argentina (particularly to the residential sector) 
are subject to government regulations and currently are substantially below regional market prices for natural gas. For additional information on 
domestic pricing for our products, see “Item 5. Operating and Financial Review and Prospects” and “Item 4. Information on the Company—Regulatory 
Framework and Relationship with the Argentine Government—Market Regulation.”  We cannot assure you that we will be able to increase the prices of 
our products sufficiently in the future, and limitations on our ability to do so would continue to adversely affect our financial condition and results of 
operations. Similarly, we cannot assure you that hydrocarbon prices in Argentina will reach prevailing international or regional levels. 

We are subject to direct and indirect export restrictions, which have affected our results of operations and caused us to declare force majeure 
under certain of our export contracts 

The Argentine Hydrocarbons Law (Law No. 17,319) allows for hydrocarbon exports as long as they are not required for the domestic market and 
are sold at reasonable prices. In the case of natural gas, Law 24,076 and related regulations require that the needs of the domestic market be taken into 
account when authorizing long term natural gas exports. 

During the last several years, the Argentine authorities have adopted a number of measures that have resulted in the substantial restriction of exports 

of natural gas from Argentina, and the Argentine government’s current policy is not to allow any exports of natural gas other than to the residential 
sector in certain other countries. 

Due to the foregoing, we have been obliged to sell a part of our natural gas production previously destined for the export market in the local 
Argentine market and have not been able to meet our contractual gas export commitments in whole or, in some cases, in part, leading to disputes with 
our export clients and forcing us to declare force majeure under our export sales agreements. We believe that the measures mentioned above constitute 
force majeure events that relieve us from any contingent liability for the failure to comply with our contractual obligations, although no assurance can be 
given that this position will prevail. See “Item 4. Information on the Company—Exploration and Production—The Argentine natural gas market” and 
“Item 8. Financial Information—Legal Proceedings.”   

In addition, the effectiveness after certain specific dates of certain of our natural gas export authorizations is subject to an analysis by the Secretariat 

of Energy of natural gas reserves in the Noroeste basin. The result of such analysis is uncertain and may have an adverse impact upon our performance 
of the export gas sales agreements related to such export authorizations should the Secretariat determine that reserves are inadequate. See “Item 8. 
Financial Information—Legal Proceedings—Argentina.” 

Crude oil exports, as well as the export of most of our hydrocarbon products, currently require prior authorization from the Secretariat of Energy 
(pursuant to the regime established under Resolution S.E. No. 1679/04 as amended and supplemented by other regulation). Oil companies seeking to 
export crude oil or LPG must first demonstrate that the local demand for such product is satisfied or that an offer to sell the product to local purchasers 
has been made and rejected. Oil refineries seeking to export diesel fuel must also first demonstrate that the local demand of diesel is duly satisfied. 
Because domestic diesel production does not currently satisfy Argentine domestic consumption needs, we have been prevented since 2005 from selling 
diesel production in the export market, and thereby obliged to sell in the local market at significantly lower prices. 

We are unable to predict how long these export restrictions will be in place, or whether any further measures will be adopted that adversely affect 

our ability to export gas, crude oil and diesel fuel or other products and, accordingly, our results of operations. 

15

  
  
  
  
  
  
  
  
  
  
  
  
The imposition of new export duties and other taxes could adversely affect our results 

In recent years, new duties have been imposed on exports. In March 2002, oil and gas companies were levied with a five-year, 20% tax on proceeds 

from the export of crude oil and a five-year, 5% tax on proceeds from the export of oil products. These duties on exports were increased on May 11, 
2004 to the following taxation rates: 25% on exports of crude oil, 20% on exports of butane, methane and LPG, and 5% on exports of gasoline and 
diesel. On May 26, 2004, a 20% duty on natural gas and natural gas liquids exports was imposed. On August 4, 2004, the Ministry of Economy and 
Production issued a resolution establishing a progressive scheme of export duties for crude oil, with rates ranging from 25% to 45%, depending on the 
quotation of the WTI reference price at the time of export and thereby modifying the fixed 25% tax rate established in May of that year. 

Resolution 394/2007 of the Ministry of Economy and Production, published on November 16, 2007, amends the export duties on crude oil and 

other crude derivative products. The new regime provides that when the WTI international price exceeds the reference price, which is fixed at 
U.S.$60.9/barrel, the producer shall be allowed to collect at U.S.$42/barrel, with the remainder being withheld by the Argentine government as an export 
tax. If the WTI international price is under the reference price but over U.S.$45/barrel, a 45% withholding rate will apply. If such price is under 
U.S.$45/barrel, the applicable export tax is to be determined within a term of 90 business days. The withholding rate determined as indicated above also 
currently applies to diesel, gasoline and other crude derivative products. In addition, the calculation procedure described above also applies to other 
petroleum products and lubricants based upon different withholding rates, reference prices and prices allowed to producers. See “Item 4. Information on 
the Company—Regulatory Framework and Relationship with the Argentine Government—Market Regulation.” 

With respect to natural gas products, in July 2006, the Ministry of Economy and Production issued Resolution 534/06, which increased to 45% the 

export duty on natural gas. This resolution also required the Customs General Administration to apply the natural gas price set by the Framework 
Agreement between Argentina and Bolivia (the “Framework Agreement”), which was approximately U.S.$6/mmBtu in December 2007, as the valuation 
basis for calculating export duties on natural gas sales, irrespective of the actual price of such sales. In 2006, exports from the Tierra del Fuego province, 
which were previously exempted from taxes, were made subject to export duties at the prevailing rates. Moreover, in May 2007 the Ministry of 
Economy and Production increased to 25% the export duty on exports of butane, propane and LPG. 

Resolution No. 127/2008 of the Ministry of Economy and Production increased export duties applicable to natural gas exports from 45% to 100%, 

mandating a valuation basis for the calculation of the duty as the highest price established in any contract of any Argentine importer for the import of 
gas, abandoning the previously applicable reference price set by the Framework Agreement between Argentina and Bolivia mentioned above. Resolution 
No. 127/2008 provides with respect to LPG products (including butane, propane and blends thereof) that if the international price of the relevant LPG 
product, as notified daily by the Secretariat of Energy, is under the reference price established for such product in the Resolution (U.S.$338/m3 for 
propane, U.S.$393/m3 for butane and U.S.$363/m3 for blends of the two), the applicable export duty for such product will be 45%. If the international 
price exceeds the reference price, the producer shall be allowed to collect the maximum amount established by the Resolution for the relevant product 
(U.S.$223/m3 for propane, U.S.$271/m3 for butane and U.S.$250/m3 for blends of the two), with the remainder being withheld by the Argentine 
government as an export tax. 

As a result of the aforementioned export tax increases, we may be and, in certain cases, have already been forced to seek the renegotiation of our 
export contracts, despite, in most cases, the prior authorization of such contracts by the Argentine government. We cannot provide assurances that we 
will be able to renegotiate such contracts on terms acceptable to us. 

The imposition of these export taxes has adversely affected our results of operations. We cannot assure you that these taxes will not continue or be 

increased in the future or that other new taxes will not be imposed. 

16

  
  
  
  
  
  
  
  
  
  
We may be exposed to fluctuations in foreign exchange rates 

Our results of operations are exposed to currency fluctuation and any devaluation of the peso against the U.S. dollar and other hard currencies may 
adversely affect our business and results of operations. The value of the peso has fluctuated significantly in the past and may do so in the future. We are 
unable to predict whether, and to what extent, the value of the peso may further depreciate or appreciate against the U.S. dollar and how any such 
fluctuations would affect our business. 

We may be subject to exchange and capital controls 

In 2001 and 2002, as a result of the economic crisis, Argentina imposed exchange controls and transfer restrictions substantially limiting the ability 
of companies to retain foreign currency or make payments abroad. Under current Argentine law, exporters are required to convert proceeds from export 
operations into domestic currency, subject to certain exceptions applicable to the oil and gas industry that permit us to retain abroad 70% of export 
proceeds. See “Item 4. Information on the Company—Regulatory Framework and Relationship with the Argentine Government—Repatriation of 
Foreign Currency.”  There can be no assurances regarding future modifications to exchange and capital controls. The imposition of stricter exchange and 
capital controls could adversely affect our financial condition or results of operations and our ability to meet our foreign currency obligations and 
execute our financing plans. 

Our access to international capital markets is influenced by the perception of risk in Argentina and other emerging economies, which may 
affect our ability to finance our operations and the trading values of our securities. 

International investors consider Argentina to be an emerging market. Economic and market conditions in other emerging market countries, 
especially those in Latin America, influence the market for securities issued by Argentine companies. Volatility in securities markets in Latin America 
and in other emerging market countries may have a negative impact on the trading value of our securities and on our ability and the terms on which we 
are able to access international capital markets. 

Risks Relating to the Argentine Oil and Gas Business and Our Business 

Oil and gas prices could affect our level of capital expenditures 

The prices that we are able to obtain for our hydrocarbon products affect the viability of investments in new exploration, development and refining, 

and as a result the timing and amount of our projected capital expenditures for such purposes. We budget capital expenditures related to exploration, 
development, refining and distribution activities by taking into account, among other things, market prices for our hydrocarbon products. In the event 
that current domestic prices prevail or decrease, our ability to improve our hydrocarbon recovery rates, find new reserves and carry out certain of our 
other capital expenditure plans is likely to be adversely affected, which in turn would have an adverse effect on our results of operations. 

Our reserves and production are likely to decline 

Argentina’s oil and gas fields are mature and our reserves and production are declining as reserves are depleted. In the last two years our proved 
reserves declined by approximately 20%, and we replaced 51% of our production with new proved reserves during 2007; average daily production in 
2007 declined by approximately 4.1% from 2006. We are engaged in efforts to mitigate these declines by adding reserves through technological 
enhancements aimed at improving our recovery factors as well as through deepwater offshore exploration and development of tight gas. These efforts 
are subject to material risks and may prove unsuccessful due to risks inherent to the oil and gas industry. 

17

  
  
  
  
  
  
  
  
  
  
  
  
  
  
Our oil and natural gas reserves are estimates, in accordance with the guidelines established by the U.S. Securities and Exchange Commission 
(SEC) 

Our oil and gas proved reserves are estimated in accordance with the guidelines established by the SEC. Proved reserves are estimated using 
geological and engineering data to determine with reasonable certainty whether the crude oil or natural gas in known reservoirs is recoverable under 
existing economic and operating conditions. 

The accuracy of proved reserve estimates depends on a number of factors, assumptions and variables, among which the most important are: 

•    the results of drilling, testing and production after the date of the estimates, which may require substantial revisions; 

•    the quality of available geological, technical and economic data and the interpretation and judgment of such data; 

•    the production performance of our reservoirs;

•    developments  such  as  acquisitions  and  dispositions,  new  discoveries  and  extensions  of  existing  fields  and  the  application  of  improved

recovery techniques; 

•    changes in oil and natural gas prices, which could have an effect on the size of our proved reserves because the estimates of reserves are 
based on prices and costs at the date when such estimates are made, and a decline in the price of oil or gas could make reserves no longer 
economically viable to exploit and therefore not classifiable as proved; and

•    whether the prevailing tax rules, other government regulations and contractual conditions will remain the same as on the date estimates 
are made (as changes in tax rules and other government regulations could make reserves no longer economically viable to exploit).

Many of the factors, assumptions and variables involved in estimating proved reserves are beyond our control and are subject to change over time. 

See “Item 4. Information on the Company—Exploration and Production—Reserves.” Consequently, measures of reserves are not precise and are subject 
to revision. Any downward revision in our estimated quantities of proved reserves could adversely impact our financial results, leading to increased 
depreciation, depletion and amortization charges and/or impairment charges, which would reduce earnings and shareholders’ equity. 

The oil and gas industry is subject to particular economic and operational risks 

Oil and gas exploration and production activities are subject to particular economic and industry-specific operational risks, some of which are 
beyond our control, such as production, equipment and transportation risks, and natural hazards and other uncertainties, including those relating to the 
physical characteristics of onshore and offshore oil or natural gas fields. Our operations may be curtailed, delayed or cancelled due to bad weather 
conditions, mechanical difficulties, shortages or delays in the delivery of equipment, compliance with governmental requirements, fire, explosions, 
blow-outs, pipe failure, abnormally pressured formations, and environmental hazards, such as oil spills, gas leaks, ruptures or discharges of toxic gases. 
If these risks materialize, we may suffer substantial operational losses and disruptions. Drilling may be unprofitable, not only with respect to dry wells, 
but also with respect to wells that are productive but do not produce sufficient net revenues to return a profit after drilling, operating and other costs are 
taken into account. 

Argentine oil and gas production concessions and exploration permits are subject to certain conditions and may not be renewed 

The Federal Hydrocarbons Law provides for oil and gas concessions to remain in effect for 25 years as from the date of their award, and further 

provides for the concession term to be extended for up to 10 additional years, subject to terms and conditions approved by the grantor at the time of the 
extension. The expiration of a substantial part of  

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our and other Argentine oil companies’ concessions occurs in 2017. The authority to extend the terms of current and new permits, concessions and 
contracts has been vested in the governments of the provinces in which the relevant area is located (and the federal government in respect of offshore 
areas beyond 12 nautical miles). In order to be eligible for the extension, any concessionaire and permit holder must have complied with its obligations 
under the Federal Hydrocarbons Law and the terms of the particular concession or permit, including evidence of payment of taxes and royalties, the 
supply of the necessary technology, equipment and labor force and compliance with various environmental, investment and development obligations. 
Under the Federal Hydrocarbons Law, non-compliance with these obligations and standards may also result in the imposition of fines and in the case of 
material breaches, following the expiration of applicable cure periods, the revocation of the concession or permit. We cannot provide assurances that our 
concessions will be extended or that additional investment, royalty payment or other requirements will not be imposed on us in order to obtain 
extensions. The termination of, or failure to obtain the extension of, a concession or permit could have a material adverse effect on our business and 
results of our operations. 

Our acquisition of exploratory acreage and crude oil and natural gas reserves is subject to heavy competition 

We face intense competition in bidding for crude oil and natural gas production areas, which are typically auctioned by governmental authorities, 

especially those areas with the most attractive crude oil and natural gas reserves. Some provinces of Argentina, including La Pampa, Neuquén and 
Chubut, have created provincial government-owned companies to develop activities in the oil and gas industry. Energía Argentina S.A. (ENARSA), the 
Argentine state-owned energy company, has also entered the market, particularly in the context of offshore exploration. As a result, the conditions under 
which we are able to access new exploratory or productive areas could be adversely affected. 

We may incur significant costs and liabilities related to environmental, health and safety matters 

Our operations, like those of other companies in the oil and gas industry, are subject to a wide range of environmental, health and safety laws and 
regulations in the countries in which we operate. These laws and regulations have a substantial impact on our operations and those of our subsidiaries, 
and could result in material adverse effects on our financial position and results of operation. A number of events related to environmental, health and 
safety matters, including changes in applicable laws and regulations, adverse judicial or administrative interpretations of such laws and regulations, 
changes in enforcement policy, the occurrence of new litigation or development of pending litigation, and the development of information concerning 
these matters, could result in new or increased liabilities, capital expenditures, reserves, losses and other impacts that could have a material adverse 
effect on our financial condition and results of operations. See “Item 8. Financial Information―Legal Proceedings,” “Item 4. Information on the 
Company—Regulatory Framework and Relationship with the Argentine Government—Argentine Environmental Regulations” and “Item 4. Information 
on the Company—Regulatory Framework and Relationship with the Argentine Government—U.S. Environmental Regulations.” Environmental, health 
and safety regulation and jurisprudence in Argentina is developing at a rapid pace and no assurance can be provided that such developments will not 
increase our cost of doing business and liabilities. 

The cessation of natural gas deliveries from Bolivia may have a material adverse effect on our long-term natural gas supply commitments 

We rely on imports of natural gas from Bolivia pursuant to the Framework Agreement between the Bolivian and Argentine governments. See “Item 

4. Information on the Company―Exploration and Production—the Argentine natural gas market.”  The current delivery capacity from Bolivia is 
7.7mmcm/d, and the delivery of volumes exceeding 7.7mmcm/d is subject to the construction of the North East Pipeline, which has not yet commenced. 
Bolivian natural gas imports pursuant to the Framework Agreement are performed under a gas supply agreement between YPFB (the Bolivian state-
owned oil and gas company) and ENARSA, which establishes a guaranteed delivery volume of 4.6mmcm/d. The price charged by Bolivia pursuant to 
this agreement was approximately U.S.$6/mmBtu in December 2007 (approximately U.S.$6.98/mmBtu in March 2008). We have entered into a gas 
supply contract with ENARSA to buy a portion of such gas (with a guaranteed volume of 2.6mmcm/d) through December 31, 2009 at a price of 
approximately U.S.$1.8/mmBtu. The difference between our  

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contractual price and cost of the natural gas purchased pursuant to the Framework Agreement is currently absorbed by ENARSA and financed by the 
Argentine government with the collection of export duties on natural gas. 

Any suspension of natural gas deliveries from Bolivia under these contracts, or an increase in the subsidized price of gas currently charged by 
ENARSA, could have a material adverse effect on our financial condition and results of operations, including our inability to provide gas to certain 
clients, since we plan to fulfill our supply contracts of natural gas in part through import volumes from Bolivia. 

We are party to a number of legal proceedings 

As described under “Item 8. Financial Information—Legal Proceedings,” we are party to a number of labor, commercial, civil, tax, criminal, 

environmental and administrative proceedings that, either alone or in combination with other proceedings, could, if resolved in whole or in part 
adversely to us, result in the imposition of material costs, fines, judgments or other losses. While we believe that we have provisioned such risks 
appropriately based on the opinions and advice of our external legal advisors and in accordance with applicable accounting rules, certain loss 
contingencies, particularly those relating to environmental matters, are subject to change as new information develops and it is possible that losses 
resulting from such risks, if proceedings are decided in whole or in part adversely to us, could significantly exceed any reserves we have established. 

Our business depends to a significant extent on our production and refining facilities and logistics network 

Our oil and natural gas field facilities, refineries and logistics network are our principal production facilities and distribution network on which a 

significant portion of our revenues depends. Although we insure our properties on terms we consider prudent and have adopted and maintain safety 
measures, any significant damage to, accident or other production stoppage at our facilities or network could materially and adversely affect our 
production capabilities, financial condition and results of operations. 

We could be subject to organized labor action 

Although we consider our current relations with our workforce to be good, we have experienced organized work disruptions and stoppages in the 

past and we cannot assure you that we will not experience them in the future, which could adversely affect our business and revenues. 

Risks Relating to Our Class D Shares and ADSs 

 Repsol YPF controls a significant majority of our shares and voting rights 

Following the Petersen Transaction, as defined in “Item 7. Major Shareholders and Related Party Transactions,” Repsol YPF controls 

approximately 84% of our capital stock and voting rights and Petersen Energía S.A. (“Petersen Energía”) controls approximately 15% of our shares and 
voting rights, in each case subject to the shareholders’ agreement described below. In addition, Repsol YPF has granted certain affiliates of Petersen 
Energía options to purchase an additional 10.1% of our capital stock held by Repsol YPF. A number of YPF corporate matters are subject to the voting 
and other procedures set forth in a shareholders’ agreement entered into between Repsol YPF, certain affiliates of Repsol YPF and Petersen Energía. 
Repsol YPF will be able to determine substantially all other matters requiring approval by a majority of our shareholders, including the election of a 
majority of our directors. Subject to the terms of the shareholders’ agreement, Repsol YPF will also direct our operations and may be able to cause or 
prevent a change in our control. See “Item 7. Major Shareholders and Related Party Transactions―Shareholders’ Agreement.”  Repsol YPF’s and 
Petersen Energía’s interests may differ from those of our other shareholders. 

Certain strategic transactions require the approval of the holder of our Class A shares or may entail a cash tender offer for all of our 
outstanding capital stock 

Under our bylaws, the approval of the holder of our Class A shares is required to undertake certain strategic transactions, including a merger, an 
acquisition that results in the purchaser holding 15% or more of our capital stock or an acquisition that results in the purchaser holding a majority of our 
capital stock. The interests of our Class A shareholder, the Argentine government, may differ from those of our other shareholders, and, as result, we 
may not be able to undertake certain transactions on terms that are advantageous to our other shareholders or at all. 

In addition, under our bylaws, an acquisition that results in the purchaser holding 15% or more of our capital stock would require such purchaser to 

make a public cash tender offer for all of our outstanding shares and convertible securities, which could discourage certain investors from acquiring 
significant stakes in our capital stock. See “Item 10. Additional Information—Certain Provisions Relating to Acquisitions of Shares.” 

Active markets may not develop for our Class D shares or the ADSs  

As of the date of this annual report, less than 1% of our capital stock is held by non-affiliates. As a result, the public markets for our Class D shares 
and ADSs have had limited trading volume. Although the ADSs will continue to be listed on the NYSE and the underlying Class D shares will continue 
to be listed on the BASE, we cannot assure you that more active and liquid markets will develop or of the price at which the Class D shares or the ADSs 
may be sold. 

Restrictions on the movement of capital out of Argentina may impair your ability to receive dividends and distributions on, and the proceeds of 
any sale of, the Class D shares underlying the ADSs 

Argentine law currently permits the government to impose temporary restrictions on capital movements in circumstances where a serious imbalance 

develops in Argentina’s balance of payments or where there are reasons to foresee such an imbalance. Although the transfer of funds abroad in order to 
pay dividends currently does not require Central Bank approval, restrictions on the movement of capital to and from Argentina such as those that 
previously existed during the recent economic crisis could, if reinstated, impair or prevent the conversion of dividends,  

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distributions, or the proceeds from any sale of Class D shares, as the case may be, from pesos into U.S. dollars and the remittance of the U.S. dollars 
abroad. We cannot assure you that the Argentine government will not take such measures in the future. 

Under the terms of our deposit agreement with the depositary for the ADSs, the depositary will convert any cash dividend or other cash distribution 
we pay on the shares underlying the ADSs into U.S. dollars, if it can do so on a reasonable basis and can transfer the U.S. dollars to the United States. If 
this conversion is not possible for any reason, including restrictions of the type described in the preceding paragraph, the deposit agreement allows the 
depositary to distribute the foreign currency only to those ADR holders to whom it is possible to do so. If the exchange rate fluctuates significantly 
during a time when the depositary cannot convert the foreign currency, you may lose some or all of the value of the dividend distribution. 

Under Argentine law, shareholder rights may be different from other jurisdictions 

Our corporate affairs are governed by our bylaws and by Argentine corporate law, which differ from the legal principles that would apply if we 

were incorporated in a jurisdiction in the United States or in other jurisdictions outside Argentina. In addition, rules governing the Argentine securities 
markets are different and may be subject to different enforcement in Argentina than in other jurisdictions. 

Actual or anticipated sales of a substantial number of Class D shares could decrease the market prices of our Class D shares and the ADSs 

Repsol YPF owns Class D shares and ADSs representing a significant majority of our capital stock (which may be reduced by approximately 10% 

if the Petersen Options described under “Item 7. Major Shareholders and Related Party Transaction—Option Agreements” are exercised).  Petersen 
Energía owns ADSs representing up to approximately 15% of our capital stock (which may be increased up to approximately 25% if the Petersen 
Options described under “Item 7. Major Shareholders and Related Party Transaction—Option Agreements” are exercised). In addition, as described in 
greater detail under “Item 7. Major Shareholders and Related Party Transactions—Registration Rights and Related Agreements,” we have filed and 
undertaken to maintain an effective shelf registration statement for the benefit of the lenders under the senior secured term loan facility provided to 
Petersen Energía to enable it to enter into the Petersen Transaction. The lenders under the senior secured term loan facility, upon the acceleration of such 
facility following the occurrence and continuation of an event of default under such facility, will be able to freely sell up to approximately 15% of our 
outstanding capital stock (which may be increased to approximately 25% if the Petersen Options are exercised) under the shelf registration statement. 
Sales of a substantial number of Class D shares or ADSs after the consummation of this offering by Repsol YPF, Petersen Energía, such lenders or any 
other significant shareholder, or the anticipation of such sales, could decrease the trading price of our Class D shares and the ADSs. See “Item 7. Major 
Shareholders and Related Party Transactions.” 

You may be unable to exercise preemptive, accretion or other rights with respect to the Class D shares underlying your ADSs 

You may not be able to exercise the preemptive or accretion rights relating to the shares underlying your ADSs (see “Item 10. Additional 

Information—Preemptive and Accretion Rights”) unless a registration statement under the U.S. Securities Act of 1933 (the “Securities Act”) is effective 
with respect to those rights or an exemption from the registration requirements of the Securities Act is available. We are not obligated to file a 
registration statement with respect to the shares relating to these preemptive rights, and we cannot assure you that we will file any such registration 
statement. Unless we file a registration statement or an exemption from registration is available, you may receive only the net proceeds from the sale of 
your preemptive rights by the depositary or, if the preemptive rights cannot be sold, they will be allowed to lapse. As a result, U.S. holders of Class D 
shares or ADSs may suffer dilution of their interest in our company upon future capital increases. 

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In addition, under the Argentine Corporations Law, foreign companies that own shares in an Argentine corporation are required to register with the 

Superintendency of Corporations (Inspección General de Justicia, or “IGJ”) in order to exercise certain shareholder rights, including voting rights. If 
you own our Class D shares directly (rather than in the form of ADSs) and you are a non-Argentine company and you fail to register with IGJ, your 
ability to exercise your rights as a holder of our Class D shares may be limited. 

You may be unable to exercise voting rights with respect to the Class D shares underlying your ADSs at our shareholders’ meetings 

The depositary will be treated by us for all purposes as the shareholder with respect to the shares underlying your ADSs. As a holder of ADRs 
representing the ADSs being held by the depositary in your name, you will not have direct shareholder rights and may exercise voting rights with respect 
to the Class D shares represented by the ADSs only in accordance with the deposit agreement relating to the ADSs. There are no provisions under 
Argentine law or under our bylaws that limit the exercise by ADS holders of their voting rights through the depositary with respect to the underlying 
Class D shares. However, there are practical limitations on the ability of ADS holders to exercise their voting rights due to the additional procedural 
steps involved in communicating with these holders. For example, holders of our shares will receive notice of shareholders’ meetings through 
publication of a notice in an official gazette in Argentina, an Argentine newspaper of general circulation and the bulletin of the Buenos Aires Stock 
Exchange, and will be able to exercise their voting rights by either attending the meeting in person or voting by proxy. ADS holders, by comparison, will 
not receive notice directly from us. Instead, in accordance with the deposit agreement, we will provide the notice to the depositary. If we ask it to do so, 
the depositary will mail to holders of ADSs the notice of the meeting and a statement as to the manner in which instructions may be given by holders. To 
exercise their voting rights, ADS holders must then instruct the depositary as to voting the Class D shares represented by their ADSs. Due to these 
procedural steps involving the depositary, the process for exercising voting rights may take longer for ADS holders than for holders of Class D shares, 
and Class D shares represented by ADSs may not be voted as you desire. Class D shares represented by ADSs for which the depositary fails to receive 
timely voting instructions may, if requested by us, be voted as we instruct at the corresponding meeting. 

Shareholders outside of Argentina may face additional investment risk from currency exchange rate fluctuations in connection with their 
holding of our Class D shares or the ADSs 

We are an Argentine company and any future payments of dividends on our Class D shares will be denominated in pesos. The peso has historically 
fluctuated significantly against many major world currencies, including the U.S. dollar. A depreciation of the peso would likely adversely affect the U.S. 
dollar or other currency equivalent of any dividends paid on our Class D shares and could result in a decline in the value of our Class D shares and the 
ADSs as measured in U.S. dollars. 

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ITEM 4. Information on the Company 

History and Development of YPF 

Overview 

We are Argentina’s leading energy company, operating a fully integrated oil and gas chain with leading market positions across the domestic 
upstream and downstream segments. Our upstream operations consist of the exploration, development and production of crude oil, natural gas and 
liquefied petroleum gas. Our downstream operations include the refining, marketing, transportation and distribution of oil and a wide range of petroleum 
products, petroleum derivatives, petrochemicals, liquid petroleum gas and bio-fuels. Additionally, we are active in the gas separation and natural gas 
distribution sectors both directly and through our investments in several affiliated companies. In 2007, we had consolidated net sales of Ps.29,104 
million (U.S.$9,239 million) and consolidated net income of Ps.4,086 million (U.S.$1,297 million). 

Most of our predecessors were state-owned companies with operations dating back to the 1920s. In November 1992, the Argentine government 
enacted the Privatization Law (Law No. 24,145), which established the procedures for our privatization. In accordance with the Privatization Law, in 
July 1993, we completed a worldwide offering of 160 million Class D shares that had previously been owned by the Argentine government. As a result 
of that offering and other transactions, the Argentine government’s ownership interest in our capital stock was reduced from 100% to approximately 
20% by the end of 1993. 

Since 1999, we have been controlled by Repsol YPF, an integrated oil and gas company headquartered in Spain with global operations. Repsol YPF 

owned approximately 99% of our capital stock from 2000 until February 21, 2008, when Petersen Energía, S.A. purchased 58,603,606 of our ADSs, 
representing 14.9% of our capital stock, from Repsol YPF for U.S.$2,235 million. In addition, Repsol YPF also granted certain affiliates of Petersen 
Energía options to purchase up to an additional 10.1% of our outstanding capital stock within four years. See “Item 7. Major Shareholders and Related 
Party Transactions.”  We believe that Petersen Energía’s participation in our capital stock and management will strengthen our Argentine ties and 
expertise. 

Upstream Operations 

•    We operate more than 70 oil and gas fields in Argentina, accounting for approximately 42% of the country’s total production of crude oil, 

excluding natural gas liquids, and approximately 42% of its total natural gas production, including natural gas liquids, in 2007, according to 
the Argentine Secretariat of Energy. 

•    We had proved reserves, as estimated as of December 31, 2007, of approximately 623 mmbbl of oil and 3,708 bcf of gas, representing 

aggregate reserves of 1,283 mmboe. 

•    In 2007, we produced 120 mmbbl of oil (329 mbbl/d) and 635 bcf of gas (1,740 mmcf/d).

Downstream Operations 

•    We are Argentina’s leading refiner with operations conducted at three wholly owned refineries with combined annual refining capacity of 

approximately 116 mmbbl (319.5 mbbl/d). We also have a 50% interest in Refinor, a jointly controlled entity operated by Petrobras Energía 
S.A., which has a refining capacity of 26.1 mbbl/d.

•    Our retail distribution network for automotive petroleum products as of December 31, 2007 consisted of 1,692 YPF-branded service stations, 

which we believe represented approximately 31.1% of all service stations in Argentina.

•    We are a leading petrochemical producer in Argentina and in the Southern Cone of Latin America, with operations conducted through our 

Ensenada plant. In addition, Profertil, a company that we jointly control, is a leading producer of urea in the Southern Cone.

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The following chart illustrates our organizational structure, including our principal subsidiaries, as of the date of this annual report. 

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The map below illustrates the location of our productive basins, refineries, storage facilities and crude oil and multi-product pipeline networks. 

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The Argentine Market 

Argentina is the second largest producer of natural gas and the fourth largest producer of crude oil in Latin America based on 2006 production, 

according to the BP Statistical Review. 

In response to the economic crisis of 2001 and 2002, the Argentine government, pursuant to the Public Emergency Law (Law No. 25,561), 

established export taxes on certain hydrocarbon products. In subsequent years, in order to satisfy growing domestic demand and abate inflationary 
pressures, this policy was supplemented by constraints on domestic prices, temporary export restrictions and subsidies on imports of natural gas and 
diesel. As a result, local prices for oil and natural gas products have remained significantly below those prevalent in neighboring countries and 
international commodity exchanges, heightening domestic demand for such products. For example, in January 2008, diesel import prices were 
approximately U.S.$700/cubic meter, while the average domestic sales prices were approximately U.S.$350/cubic meter before government subsidies. In 
addition, the price at which Bolivia exports natural gas to Argentina was approximately U.S.$6/mmBtu in December 2007 (U.S.$6.98/mmBtu in March 
2008), while our average sales price for such gas in Argentina was approximately U.S.$2.29/mmBtu. 

Argentina’s gross domestic product, or GDP, has grown at an average annual real rate of approximately 9% from 2003 to 2006, after declines 
during the economic crisis of 2001 and 2002. Driven by this economic expansion and low domestic prices, energy demand has increased significantly 
during the same period, outpacing energy supply (which in the case of oil declined). For example, Argentine natural gas and diesel consumption grew at 
average annual rates of 6.5% and 6.9%, respectively, during this period, according to the BP Statistical Review and the Argentine Secretariat of Energy. 
As a result of this increasing demand and actions taken by the Argentine regulatory authorities to support domestic supply, exported volumes of 
hydrocarbon products, especially natural gas and diesel, declined steadily over this period. At the same time, Argentina has increased hydrocarbon 
imports, becoming a net importer of certain products, such as diesel, and increased imports of natural gas. In 2003, Argentina’s net exports of diesel 
amounted to approximately 1,349 thousand cubic meters, while in 2007 its net imports of diesel amounted to approximately 800 thousand cubic meters, 
according to the Argentine Secretariat of Energy. Significant investments in the energy sector are expected to be required in order to support continued 
economic growth, as the industry is currently operating near capacity. 

Demand for diesel in Argentina exceeds domestic production. In addition, the import prices of refined products substantially exceed the domestic 

sales prices of such products, rendering the import and resale of such products uneconomic. As a result, service stations experience temporary shortages 
and are required to suspend or curtail diesel sales. While we are operating our refineries at or above capacity, during peak demand periods we are forced 
to prorate supplies among our service stations according to historical sales levels. 

As the largest integrated oil and gas company in Argentina, we believe that we are well positioned to benefit from potential reform in the energy 

sector, although we cannot assure that reforms will be implemented or, if implemented, that they will be advantageous to our business. We also believe 
that, as a result of limitations on the prices of our products, our margins should be less sensitive to declines, if any, in international prices of oil and gas. 

History of YPF 

Beginning in the 1920s and until 1990, both the upstream and downstream segments of the Argentine oil and gas industry were effectively 
monopolies of the Argentine government. During this period, we and our predecessors were owned by the state, which controlled the exploration and 
production of oil and natural gas, as well as the refining of crude oil and marketing of refined petroleum products. In August 1989, Argentina enacted 
laws aimed at the deregulation of the economy and the privatization of Argentina’s state-owned companies, including us. Following the enactment of 
these laws, a series of presidential decrees were promulgated, which required, among other things, us to sell majority interests in our production rights to 
certain major producing areas and to undertake an internal management and operational restructuring program. 

In November 1992, Law No. 24,145 (referred to as the Privatization Law), which established the procedures by which we were to be privatized, 

was enacted. In accordance with the Privatization Law, in July 1993, we completed a worldwide offering of 160 million Class D shares that had 
previously been owned by the Argentine government. As a result of that offering and other transactions, the Argentine government’s ownership 
percentage in our capital stock was reduced from 100% to approximately 20% by the end of 1993. 

In January 1999, Repsol YPF acquired 52,914,700 Class A shares in block (14.99% of our shares) which were converted to Class D shares. 

Additionally, on April 30, 1999, Repsol YPF announced a tender offer to purchase all outstanding Class A, B, C and D shares (the “Offer”). Pursuant to 
the Offer, in June 1999, Repsol YPF acquired an additional 82.47% of our outstanding capital stock. Repsol YPF acquired additional stakes in us from 
minority shareholders and other transactions in 1999 and 2000. As of December 31, 2007, Repsol YPF controlled 99.04% of our share capital. 

Between 2004 and 2005 we made non-strategic asset divestitures totaling U.S.$239.5 million. 

On February 21, 2008, Petersen Energía purchased 58,603,606 of our ADSs, representing 14.9% of our capital stock, from Repsol YPF for 
U.S.$2,235 million. In addition, Repsol YPF also granted certain affiliates of Petersen Energía options to purchase up to an additional 10.1% of our 
outstanding capital stock within four years. Repsol YPF will retain a majority of our capital stock and, subject to the shareholders’ agreement entered 
into between Repsol YPF and Petersen Energía, will be able to determine substantially all issues decided by our shareholders. See “Item 7. Major 
Shareholders and Related Party Transactions.” 

Business Segments 

We organize our business along the following segments: 

•    Exploration and Production; 

•    Refining and Marketing; and 

•    Chemical. 

The Exploration and Production segment’s sales to third parties in Argentina and abroad include sales of natural gas and services fees (primarily for 

the transportation, storage and treatment of hydrocarbons and products). In addition, crude oil produced by us in Argentina, or received from third 
parties in Argentina pursuant to service contracts, is transferred from Exploration and Production to Refining and Marketing at transfer prices established 
by us, which generally seek to approximate Argentine market prices. 

The Refining and Marketing segment purchases crude oil from the Exploration and Production segment and from third parties. Refining and 

Marketing activities include crude oil refining and transportation, as well as the marketing and transportation of refined fuels, lubricants, LPG, 
compressed natural gas and other refined petroleum products in the domestic wholesale and retail markets and the export markets. 

The Chemical segment sells petrochemical products both in the domestic and export markets. 

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Additionally, we record certain assets, liabilities and costs under the Corporate and Other segment, including corporate administration costs and 

assets, certain building construction activities and environmental remediation activities related to YPF Holdings’ discontinued operations. 

The following table sets forth net sales and operating income for each of our lines of business for the years ended December 31, 2007, 2006 and 

2005: 

Net Sales(1) 
Exploration and Production(2)(3) 

To unrelated parties 
To related parties 
Intersegment sales and fees(3) 

Total Exploration and Production 

Refining and Marketing(4) 
To unrelated parties 
To related parties 
Intersegment sales and fees 

Total Refining and Marketing 

Chemical 

To unrelated parties 
Intersegment sales and fees 

Total Chemical 
Corporate and Other 

To unrelated parties 
Intersegment sales and fees 

Total Corporate and Others 
Less intersegment sales and fees 
Total net sales(5) 
Operating Income (Loss) 

Exploration and Production 
Refining and Marketing 
Chemical 
Corporate and Other 
Consolidation adjustments 
Total operating income 

2007

For the Year Ended December 31,
2006
(in millions of pesos)

2005

3,288
724
14,056   
18,068   

20,375
2,045
1,858   
24,278   

2,563

892   
3,455   

109
440   
549   

3,076
774
14,033   
17,883   

17,651
1,624
1,526   
20,801   

2,401

647   
3,048   

109
282   
391   

2,910
626
11,659 
15,195 

15,791
1,425
962 
18,178 

2,062
207 
2,269 

87
243 
330 

(17,246)  
29,104   

(16,488)  
25,635   

(13,071)
22,901 

5,679
1,234
500
(620)
(136)  
6,657   

6,564
258
572
(540)

29   
6,883   

7,140
1,900
542
(451)
30 
9,161 

____________ 
(1) 

Net sales are net to us after payment of a fuel transfer tax, turnover tax and customs duties on exports. Royalties with respect to our production 
are accounted for as a cost of production and are not deducted in determining net sales. See Note 2 (g) to the Audited Consolidated Financial 
Statements. 

(2) 

(3) 

Includes exploration and production operations in Argentina and the United States.

Intersegment sales of crude oil to Refining and Marketing are recorded at transfer prices established by us, which generally seek to 
approximate Argentine market prices. 

(4) 

Includes LPG activities. 

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(5) 

Total net sales include export sales of Ps.8,400 million, Ps.8,649 million, and Ps.8,644 million for the years ended December 31, 2007, 2006 
and 2005, respectively. The export sales were mainly to the United States, Brazil  and Chile.

Exploration and Production 

Principal properties 

Argentine properties 

Our production is concentrated in Argentina and our domestic operations are subject to numerous risks. See “Item 3. Key Information—Risk 

Factors.” 

Argentina is the fourth largest hydrocarbon producing nation in Latin America and the fourth largest in terms of reserves, after Mexico, Venezuela 

and Brazil. Oil has historically accounted for the majority of the country’s hydrocarbon production and consumption, although the relative share of 
natural gas has increased rapidly in recent years. According to the Secretariat of Energy, 19 sedimentary basins have been identified in the country. Five 
of these are combined onshore/offshore and three are entirely offshore. Total onshore acreage is composed of approximately 334 million acres, and total 
offshore acreage includes 99 million acres on the South Atlantic shelf within the 200-meter depth line. A substantial portion of the 432 million acres in 
sedimentary basins has yet to be evaluated by exploratory drilling. Commercial production is concentrated in five basins: Neuquina, Cuyana and Golfo 
San Jorge in central Argentina, Austral in southern Argentina (which includes onshore and offshore fields), and the Noroeste basin in northern 
Argentina. The Neuquina and Golfo San Jorge basins are the most significant basins for our activities in Argentina. As of December 31, 2007, we had an 
interest in 18.6 million net acres onshore and offshore (within the 200-meter depth line), of which 6.4 million net acres were under production 
concessions and 12.2 million net acres were under exploration permits. 

The following table shows our gross and net interests in productive oil and gas wells and exploration permits and production concessions in 

Argentina by basin, as of December 31, 2007. 

Oil 

  Gross(2)     

Net(2) 

Gross(2)

Net(2)

Gross(2)

Wells

Gas

Production
Concessions(1) 

Net(2) 

Acreage 

Exploration
Permits(1)

    Gross(2)

Net(2)

3,288     
6,805     
805     
29     
120     
5     

2,811
5,975
627
8
37
2

575
51
—
47
54
—

418
50
—
15
16
—

4,008
2,472
427
1,329
602
115

(thousands of acres)

3,114     
2,347     
375     
372     
181     
63     

1,478
4,927
2,157
—
—
18,920

1,246
2,464
1,861
—
—
6,625

Onshore 
Neuquina 
Golfo San Jorge 
Cuyana 
Noroeste 
Austral 
Offshore 
____________ 
(1) 

Production concessions are granted after commercially exploitable quantities of oil or gas are discovered, are based upon the estimated field 
size as determined by geological and geophysical techniques and are subject to adjustment based upon new information concerning the 
reservoir. Accordingly, not all acreage covered by production concessions is, in fact, producing. Acreage held under exploration permits is 
unproved and non-producing. 

(2) 

“Gross” wells and acreage include all wells and acreage in which we have an interest. “Net” wells and acreage equals gross wells and acreage 
after deducting third party interests. 

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The table below provides certain information with respect to our principal oil and gas fields in Argentina at December 31, 2007, all of which are 

mature: 

Interest   

Production 2007
  Oil (mbbl)      Gas (mmcf)
75
—
269
351

2,218 
1,871 
1,988 
3,594 

100%   
100%   
(2)
100%   

Reserves as December 31, 2007

Development 
stage of the area

Oil (Mbbl)
16,377
9,287
13,983
25,748

Gas (mmcf)

BOE (mboe)   Basin/Location  

574
0
1,896
2,117

16,479 
9,287 
14,321 
26,125 

Cuyana
Neuquina
Cuyana
Cuyana

Mature Field
Mature Field
Mature Field
Mature Field

100%   

12,661 

58,660

58,416

351,645

121,042 

Neuquina

Mature Field

100%   
100%   
100%   

100%   
100%   
100%   
100%   
100%   
100%   
100%   
100%   

10,783 
302 
2,156 

813 
17,066 
2,132 
5,885 
3,502 
4,157 
3,344 
7,962 

1,903
13,367
150

52,909
271,057
318
3,998
3,812
853
2,079
22,149

45,817
329
18,323

7,690
92,411
11,285
23,428
19,953
20,757
13,415
34,680

7,548
45,086
1,135

177,190
1,840,126
1,075
9,843
16,069
3,767
6,946
46,150

47,161 
8,359 
18,525 

Neuquina
Neuquina
Neuquina

Mature Field
Mature Field
Mature Field

Neuquina
Neuquina

Mature Field
39,247 
Mature Field
420,127 
11,477  Golfo San Jorge Mature Field
25,182  Golfo San Jorge Mature Field
22,815  Golfo San Jorge Mature Field
21,428  Golfo San Jorge Mature Field
14,652  Golfo San Jorge Mature Field
42,899  Golfo San Jorge Mature Field

Areas (1) 

Barrancas 
Cerro Fortunoso 
La Ventana 
Vizcacheras 
El Portón-Chihuido 
La Salina 
Chihuido Sierra 
Negra 
Paso Bardas Norte 
Señal Picada 
Aguada Toledo – 

Sierra Barrosa 

Loma la Lata 
El Trébol 
Manantiales Behr 
Seco León 
Barranca Baya 
Lomas del Cuy 
Los Perales 
___________ 
(1) 

Exploitation areas. 

(2) 

69.6% for crude oil and 60% for natural gas liquids and natural gas.

Approximately 84% of our proved crude oil reserves in Argentina are concentrated in the Neuquina (50%) and Golfo San Jorge (34%) basins, and 

96% of our proved gas reserves in Argentina are concentrated in the Neuquina (79%), Noroeste (13%) and Austral (4%) basins. 

As of December 31, 2007, YPF held 109 production concessions and exploration permits in Argentina. YPF directly operates 73 of them, including 

61 production concessions and 12 exploration permits. 

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As of December 31, 2007, we held 18 exploration permits in Argentina, 11 of which are onshore exploration permits and seven of which are 
offshore exploration permits. We have has 100% ownership of five onshore permits and one offshore permit, and our participating interests in the rest 
vary between 27% and 90%. Our interests in the offshore permits vary between 30% and 50%. 

As of December 31, 2007, we had 91 production concessions. we have a 100% ownership interest in 54 production concessions, and our 

participating interests in the remaining 37 production concessions vary between 12% and 70%. 

Joint ventures and contractual arrangements in Argentina 

We participate in 18 exploration and production joint ventures in Argentina. Our interests in these joint ventures range from 12% to 70%, and our 

obligations to share exploration and development costs vary under these agreements. In addition, under the terms of some of these joint ventures, we 
have agreed to indemnify our joint venture partners in the event that our rights with respect to such areas are restricted or affected in such a way that the 
purpose of the joint venture cannot be achieved. For a list of the exploration and production joint ventures in which we participate, see Note 6 to the 
Audited Consolidated Financial Statements. We are also a party to a number of other contractual arrangements that arose through the renegotiation of 
service contracts and risk contracts and their conversion into production concessions and exploration permits, respectively. 

International properties – United States 

Our foreign operations, through YPF Holdings, are subject to certain environmental claims. See “—Environmental Matters—YPF Holdings—

operations in the United States.” 

As of December 31, 2007, we had mineral rights in 56 blocks in the United States, comprised of 51 exploratory blocks, with a net surface area of 

863 square kilometers and five development blocks, with a net surface area of 17 square kilometers. 

Our U.S. subsidiaries’ net petroleum production in the United States for 2007 was 100 mboe, while in 2006 the net production for the year was 105 

mboe. 

Our U.S. subsidiaries net proved reserves in the United States as of December 31, 2007 were 6,935 mboe. 

Our U.S. subsidiaries have entered into various operating agreements and capital commitments associated with the exploration and development of 

their oil and gas properties. Such contractual, financial and/or performance commitments are not material, except those commitments related to the 
development of the Neptune Field. 

The Neptune Field is located in deep water in the Central Gulf of Mexico, approximately 120 miles from the Louisiana coast. The field is 
comprised of Atwater Blocks 573, 574, 575, 617 and 618. The Sigsbee Escarpment is the dominant sub-sea feature of the field, with water depths 
ranging from 4,200 ft. to 6,500 ft. The host facility is located above the escarpment in 4,250 ft. of water, in Green Canyon Block 613. BHP Billiton is the 
operator of the Neptune Field. The joint venture participants are BHP Billiton (35%), Marathon Oil Corp. (30%), Woodside Petroleum Ltd (20%), and 
our indirect subsidiary Maxus (US) Exploration (15%). 

The Neptune reserves will be produced using a standalone tension leg platform (TLP). The facility will have the design capacity to produce up to 
60,000 bpd and 50 mmcf/day. Sub-sea development wells will be tied back to the TLP. The oil and gas will be exported via new lateral pipelines into the 
existing Caesar and Cleopatra trunk lines. The new lateral pipelines will be installed, owned and operated by Enbridge Offshore LLC. 

On March 16, 2008, we were notified that a structural anomaly had been identified on at least one of the pontoons on the Neptune Platform. As a 
result, commencement of operations has been delayed while the facility is inspected, the structural anomaly is evaluated, and any necessary corrective 
actions are implemented. As of the date of this annual report, no information as to the timing or potential cost of these actions was available, nor did we 
know when such information may become available. 

30

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Exploration and Development Activities 

The following table shows the number of wells drilled by us in Argentina, or in which we participated, and the results obtained, for the periods 

indicated. 

Gross wells drilled(1) 

Exploratory 

Oil 
Gas 
Dry 

Total 

Development 

Oil 
Gas 
Dry 

Total 

Net wells drilled(1) 

Exploratory 

Oil 
Gas 
Dry 

Total 

Development 

Oil 
Gas 
Dry 

Total 
___________ 
(1) 

For the Year Ended December 31,
2006

2005

2007

4
2
17   
23

622
75
14   
711   

4
1
12   
17

488
51
13   
552   

1
1
17   
19

703
42
12   
757   

1
1
13   
15

580
15
10   
605   

6
1
7 
14

632
34
18 
684 

5
–
5 
10

485
17
16 
518 

“Gross” wells means all wells in which we have an interest. “Net” wells means gross wells after deducting interests of others.

Our principal exploration activities in 2007 focused mainly on underexplored areas within currently producing onshore regions. In 2007, we also 

completed all of our planned seismic acquisition and site surveys in shallow and deep water basins in Argentine offshore areas in which we plan to 
commence our drilling operations in 2008. 

Three-dimensional seismic testing is being extensively used in several basins to increase exploratory success, improve the quality of exploratory 

prospects, optimize positioning of the wells and decrease development risk. In 2006, 2,960 km2 of three-dimensional seismic testing were recorded and 
evaluated, including 2,523 km2 of onshore seismic testing (1,593 km2 exploratory and 930 km2 for development) and 437 km2 of offshore seismic 
testing in the offshore Colorado Marina basin (as part of an 1,974 square kilometers survey completed in February 2007). In 2007, a total of 2,611 km2 
of three-dimensional seismic testing were recorded in the Austral basin and the offshore Colorado Marina basin. 

During 2007, 23 exploratory wells (operated and non-operated areas) were drilled: 18 in the Neuquina basin, 4 in the Golfo San Jorge basin and one 

in the Austral basin. Successful wells included the Borde Sur del Payún (oil), Borde Sur del Payún Shallow (oil ), Los Cavados Este (oil),  Rincon 
Amarillo x-5 (gas) (located in the Neuquina  

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basin), Estancia Baltaza (oil) (located in the Golfo San Jorge basin) and Arroyo Gamma Sureste (gas) located in Austral basin. 

With respect to production initiatives, we continued to improve our facilities and focus our efforts to improve operating efficiencies at our key oil 

and gas properties. For example, our U.S.$30 million Low Pressure Compression Project at the Loma La Lata natural gas field became fully operational 
in August 2007. In addition, a new natural gas processing and compression plant with a total capacity of 21 mmcf/d was completed at the Loma La Lata 
field during the first half of 2007, at a total cost of U.S.$13 million. This plant fed from 10 high CO2-content wells and has been operating since June 30, 
2007, processing 10.6 mmcf/d. We expect that the new plant will help YPF to keep the Huincul Methanol plant in service for at least three years. 

Our key ongoing production asset capital improvement projects include the Ramos Low Pressure Project in the northwest of Argentina, which is 

expected to increase compression capacity at that site from 23,680 HP to 38,500 HP (this project is expected to be completed during the first quarter of 
2008 at a total cost of approximately U.S.$22 million) and a water injection project at Rincón de los Sauces in the Neuquina basin, in the Chihuido de la 
Sierra Negra field, to mitigate the natural production decline attributable to the maturity of that field (this project is expected to be completed in 2009 at 
a total cost of approximately U.S.$133 million). In the year ended December 31, 2007, we also repaired 30 wells, drilled eleven new wells to replace 
collapsed wells and commenced the revamping of the water treatment plant in Chihuido de la Sierra Negra (we invested U.S.$21.8 million in these 
projects in 2007). We also continued our work on the Water Alternating GAS (WAG) project in Chihuido de la Sierra Negra in 2007, where a pilot 
project is expected to be completed in the first half of 2008. Due to the development of new fields, 55 new wells were drilled in Desfiladero Bayo, Bayo 
Este and Cañadón Amarillo during the year 2007. 

In the block CNQ 7A, operated by Petroandina Resources, in which we have a 50% interest, the delineation of the El Corcobo Norte, Jagüel Casa 

de Piedra, Cerro Huanunl Sur and Puesto Pinto Reservoirs has been completed and the development of those reservoirs has begun. The El Corcobo 
Norte and Jagüel Casa de Piedra water injection projects also have begun, and a steam injection project in Puesto Pinto has started. 

We are also working on a pipeline installation from Corcobo Norte to Puesto Hernandez, which will facilitate the transport of crude to our refinery 

in Lujan de Cuyo, replacing the current truck transport to the Medanito Plant. 

In UNAS (the minor South Business Unit in the Golfo San Jorge basin), 434 injection wells were closed due to the application of new state and 
provincial regulations, which established tighter anular space control parameters. As a result, the water injection volume was reduced by 91 mbbls/d 
during 2007, resulting in a reduction in production of an estimated 4 mbbls/d net of oil. Both the Las Heras and Chubut Cañadón Seco economic 
units have started a remediation campaign, performing overhauls on 71 wells and drilling five replacement wells. The total capital expenditure for these 
jobs was U.S.$15 million. 

Our production declines in recent periods are attributable mainly to the continuing maturity of our fields, although work stoppages and pipeline 
issues have on occasion contributed to production and capital project delays. During 2007, in the UNAS and UNAO (the West Business Unit in the 
Neuquina and Cuyana basin), a series of labor and community conflicts halted the production of approximately 1.32 million of barrels of oil equivalent. 
In December 2006, due to some problems that affected the main pipeline of Magallanes UTE located in the Tierra del Fuego province, oil and gas 
production was stopped. At the beginning of 2007, our joint venture partner began to replace 18.6 km of pipeline (17 km offshore and 1.6 km onshore), 
which connects the A3 platform and the battery. In addition, 3.7 km of pipeline that links the AM2 and AM3 platforms will be replaced. These works 
were long-delayed by unfavorable weather conditions, and are expected to be completed in the first half of 2008. The total contribution by YPF for this 
project is estimated to be U.S.$20.9 million. 

As of March 31, 2008, we had 35 gross and 25 net wells in the process of drilling. 

We are engaged in efforts, through the PLADA program, to mitigate the decline in our reserves and production by adding reserves through 

technological enhancements aimed at improving our recovery factors, including through better reserve delineation, secondary and tertiary recovery, and 
infill drilling. PLADA was implemented, beginning in 2007, under the Front End Loading (“FEL”) methodology, and visualization stage studies have so 
far been conducted on 41 areas of reserves. 

32

  
  
  
  
  
  
  
  
  
  
  
  
Reserves 

In each concession, we or the consortium of which we are a part are entitled to the reserves that can be produced over the license period, which may 

be the life of the field. 

The following table sets forth our estimated proved reserves and proved developed reserves of crude oil and natural gas at December 31, 2005, 

2006, and 2007, which are subject to the explanations and qualifications that follow. 

Proved Developed and Undeveloped Reserves 

Reserves as of December 31, 2005 

Revisions of previous estimates(3) 
Extensions, discoveries and improved recovery 
Production for the year 

Reserves as of December 31, 2006 

Revisions of previous estimates(3) 
Extensions, discoveries and improved recovery 
Production for the period 

Reserves as of December 31, 2007 

Proved Developed Reserves 

As of December 31, 2005 
As of December 31, 2006 
As of December 31, 2007 
_____________ 
(1) 

Includes crude oil, condensate and natural gas liquids.

Crude Oil(1)    
(millions of 
barrels) 

Gas 

(Bcf) 

Combined(2)
(boe in 
millions)

777     

4,683

1,611

9     
20     
(126)    
680     

46     
17     
(120)    
623     

604     
521     
460     

(63)
46
(651)  
4,015   

319
9
(635)
3,708   

3,201   
2,571
2,441

(2)
29
(242)
1,396 

100
19
(232)
1,283 

1,174 
979
895

(2) 

 (3) 

Volumes of gas in the table above and elsewhere in this annual report have been converted to boe at 5.615 mcf per barrel.

Revisions in estimates of reserves are performed at least once a year. Revision of oil and gas proved reserves are considered prospectively in 
the calculation of depreciation. 

Net crude oil and gas proved reserves as of December 31, 2007 were 1,283 million boe (49% oil, and 51% gas), a 8% decrease compared to net 

crude oil and gas proved reserves of 1,396 million boe reported as of December 31, 2006. 

Changes in our estimated net proved reserves 

—  Changes in our estimated net proved reserves during 2006 

1.    Revisions of previous estimates 

During 2006, the proved reserves were revised downwards by 2.5 million boe (a decrease of 63.0 billion cubic feet of gas and an increase of 8.7 

million barrels of oil). 

Revision of previous estimates of proved reserves in UNAO assets not operated by us resulted in the removal of 53.5 billion cubic feet of proved 
reserves of gas and 1.5 million barrels of proved reserves of oil. Revisions were immaterial for the assets not operated by us in UNAS areas. Revision on 
the minor UNAO areas resulted in the removal of 5.4 billion cubic feet of proved gas reserves and the inclusion of 2.7 million barrels of  

33

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
  
     
     
  
     
  
 
 
  
 
  
      
      
 
proved reserves of oil. The reserves of all the productive areas were externally audited by GCA (Gaffney, Cline & Associates) and D&M (DeGolyer & 
MacNaughton) over a period of two years (2005-2006). 

Main changes to proved reserves have been due to: 

•    In the Noroeste basin, 9.2 billion cubic feet of gas were removed fundamentally due to the low production behavior of the Campo Durán 

(Tupambi) deposit in the Aguaragüe area. 

•    In the Cuyana basin, except for the inclusion of 0.7 million barrels of oil due to the upgrading of recovery systems at the Estructura Cruz de 

Piedra deposit, all the other areas showed low production behavior and gave rise to an overall removal of 4.6 million barrels of oil.

•    In the Neuquina basin, the primary upward revisions were made in the Aguada Toledo-Sierra Barrosa area, where 52.9 billion cubic feet of gas 
reserves were added due to the implementation of low compression, the repair of a well and the adjustment update of the material balance.

•    In the Paso Bardas Norte area, 3.7 billion cubic feet of gas reserves were added due to the adjustment of the Materials Balance in the Huitrín 
La Tosca deposit and in the Piedras Negras area, and 3.1 billion cubic feet of gas were reclassified as proved following the signing of a gas 
contract for electric power generation. 

•    The primary downward revisions in this basin occurred in the Puesto Cortadera, Rincón del Mangrullo and Loma La Lata-Lotena deposits. 

Overall, 56.1 billion cubic feet of proved gas reserves were removed due to the adverse effect of some wells and the corresponding adjustment 
of estimates. In the Filo Morado area within the Faja Plegada, a downward revision of 23 billion cubic feet of gas and 1.6 million barrels of oil 
was made due to production behavior. 

•    In Southern Argentina, the positive results of development drilling (primarily in the areas of Manantiales Behr, Zona Cental-Bella Vista Este, 

Escalante, El Trébol, Las Heras and Lomas del Cuy) in locations adjacent to the production areas, classified as not proved due to their 
geological uncertainty and to the fields’ improved production response, resulted in the inclusion of 5.5 million barrels of oil and 4.2 billion 
cubic feet of gas into proved reserves. 

2.    Improved recovery 

Additions of net proved reserves for improvements in the recovery were largely due to: the successful completion of technical/economic feasibility 

studies for the expansion of existing projects at UNAS, which will be implemented within the next three years; the improvement of response from 
ongoing projects in UNAS; and the response from physical activity performed at UNAO that have added 8.7 million barrels of oil. 

3.    Extensions and discoveries 

In the Neuquina basin, in the Malargüe area, 1.9 million barrels were added as proved oil reserves due to the outlining activity performed at the 

Loma de La Mina and Loma Alta areas. 

In the Rincón de los Sauces area, the outlining projects of Desfiladero Bayo Este and the Pata Mora fields, and the discoveries in the area of the 

CNQ 7A exploration permit, resulted in the addition of 1.9 million barrels of proved oil reserves. 

Proved gas reserves have been added in the Loma La Lata area as the result of offset wells in the areas Aguada Toledo-Sierra Barrosa, Lindero 

Atravesado, Rincón del Mangrullo and Aguada Pichana for a total of 33.8 billion cubic feet of gas. 

In the Golfo San Jorge basin, offset wells in the vicinity of proved areas (principally at Manantiales Behr, Barranca Baya, Seco León, Lomas del 

Cuy and Cañadon Yatel) added 6.0 million barrels of proved oil reserves. 

34

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
An anticlinical structure of Tertiary sandstone which contains dry gas was discovered at the Cerro Piedra field. The production started at the end of 
2006 with one well, and the field will be fully developed after working-over three other wells. Estimated proved reserves were 8.1 billion of cubic feet of 
gas (1.4 million boe). 

—  Changes in our estimated net proved reserves during 2007 

1.    Revisions of previous estimates 

During 2007, the proved reserves were revised upwards by 100 million boe (an increase of 319 billion cubic feet of gas and 46 million barrels of 

oil). 

Main changes to proved reserves have been due to: 

•    In the Noroeste basin, in the Acambuco area, 74.7 billion cubic feet of natural gas and 1.5 million barrels of oil, condensate and natural gas 
liquids were added to proved reserves by the production performance of well Mac-1001-bis in Macueta reservoir, which in turn provided a 
basis for considering the two neighboring wells, Mac.x-1002 and Mac.e-1003, as proved undeveloped reserves. The reserves of San Pedrito 
reservoir were revised downwards as a result of a more extensive material-balance study performed by YPF and 28.4 billion cubic feet of gas 
and 0.1 million barrels of condensate were removed from proved reserves.

•    In the Aguaragüe area, 23.7 billion cubic feet of gas were added to proved reserves in Santa Rosa–Icla reservoir. The increase was mainly in 

proved undeveloped reserves and is related to volumetric studies conducted in areas where new drilling activity is to be performed in 2009 and 
2010. 

•    In the Loma La Lata-Sierras Blancas reservoir, the revision of the development plan for the southeastern and northeastern parts of the field, in 
conjunction with a general improvement in production performance, resulted in the addition of 168.8 billion cubic feet of gas and 9.1 million 
barrels of associated liquids to proved reserves. 

•    In the San Roque area, in accordance with a new evaluation of the fields, 54.0 billion cubic feet of gas and 3.0 million barrels of associated 
liquids in Aguada San Roque reservoir, as well as 50.0 billion cubic feet of gas and 3.2 million barrels of associated liquids in Loma las 
Yeguas reservoir, were added to proved reserves. The addition was mostly to proved undeveloped reserves and in both cases was related to the 
planned installation of compression facilities scheduled for mid 2008.

•    In the CNQ7A area, proved reserves were increased by 6.7 million barrels of oil because of the general revaluation of reserves performed in 
conformity with the development plans for the four reservoirs. These plans, which include the drilling and workover of more than 350 wells, 
are being implemented by the operator. 

•    In Golfo San Jorge basin fields, the positive results of development drilling (primarily in the areas of Manantiales Behr, Cañadón Vasco and 

Cañadón Perdido) in locations adjacent to the production areas, previously classified as non-proved due to their geological uncertainty, and to 
the fields’ improved production response, resulted in the inclusion of 2.3 million barrels of oil in proved reserves. 

•    The production performance in some of the south areas has been adversely affected by the closing of injection wells due to corrosion problems 
which has caused a downward deviation in current production estimates. Secondary production decreased for that reason in some areas, but 
primary production increased in others, mainly in Barranca Baya, Escalante and Tierra del Fuego areas, with these effects practically offsetting 
one another. The temporary closing of injector wells resulted in the recategorization of certain proved developed production oil reserves into 
proved developed non-productive and proved undeveloped oil reserves. The downward revisions resulted in a reduction of 1.2 million barrels 
of oil in proved reserves. 

35

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
•    Those reserves that were booked since 2003, without a development program for the next two years, were taken out, resulting in the removal 

of 4.0 million barrels from proved oil reserves, mainly in Los Perales, Barranca Baya and Manantiales Behr fields. 

•    The anti-clinical structure of Tertiary sandstone discovered in 2006 in the Cerro Piedra field in the Southern region has been in production 

throughout 2007. The new pressure analysis shows that dry gas reserves increased by 4.2 billion cubic feet. 

•    The  delay  in  various  development  plans  resulted  in  the  removal  of  1.6  million  barrels  of  proved  oil  reserves  because  production  would  be

beyond the concession expiration date. 

•    In Austral basin, in CAM 2 A Sur area, the well Poseidón-112 was flooded and thus closed down, resulting in a net proved reserve decrease of 

0.6 million boe. 

•    In Neptune (USA), the delineation and development activity carried out has produced new information about the geological and petrophysical 
parameters which differs, in some cases, from previous estimates, leading to a negative revision of 574 mboe of proved reserves, comprised of 
negative revisions of 0.7 billion cubic feet of gas and 452 mbbl of oil. The revised figures are in line with the estimate of GCA.

2.    Improved recovery 

In the Cuyana basin, in the Barrancas area 0.3 million barrels of oil were added to proved reserves as a result of the successful drilling of wells B-

499 and B-501 as part of the secondary recovery project for the Cabras/Brecha Verde reservoir. 

In the Neuquina basin, in the Desfiladero Bayo area, 2.2 million barrels of oil were added to proved reserves due to the drilling of 14 new wells as 

part of the Centro Infill Project in the Agrio + Troncoso and Rayoso reservoirs. 

In the Chihuido de la Sierra Negra area, 1.3 million barrels of oil were added to proved reserves due to the commencement of drilling during 2007 

and the establishment of drilling plans for 2008 for the Lomita-Rayoso reservoir. 

In the CNQ7A area, definition for a secondary recovery project in the Jaguel Casa de Piedra reservoir as part of the overall development plan 
established for the field resulted in the addition of 1.0 million barrels of oil to proved reserves based on the successful results of a pilot injection project 
started in November 2005. 

In the Señal Picada area, 0.7 million barrels of oil were added to proved reserves because of the expansion of the secondary recovery project to the 

eastern part of the SP-Quintuco reservoir. 

In the Golfo San Jorge oil fields, 1.8 million barrels of oil were added to net proved reserves as a result of improvements in recovery through water 

injection projects. 

3.    Extensions and discoveries 

In the Cuyana basin, in the area La Ventana Central, 0.2 million barrels of oil were added to proved reserves as a result of the extension of well RV-

35 in the Rio Viejas reservoir. 

In the Neuquina basin, the most important upward revision was in the Aguada Toledo-Sierra Barrosa area, where 3.4 billion cubic feet of gas were 

added to proved reserves in the Cupén Mahuida Precuyano reservoir as a result of the appraisal of well CuM.a-13. 

In the Loma Alta Sur area, 1.4 million barrels of oil and 1.1 billion cubic feet of gas were added to proved reserves as a result of the appraisal of 

wells LA.a-16 and LA.a-17. 

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In the Desfiladero Bayo area, 0.3 million barrels of oil were added to proved reserves in the reservoir Agrio + Troncoso as a result of the appraisal 

of well DB.a-185 and 0.5 million barrels of oil in the Desfiladero Bayo Este reservoir as a result of the appraisal of well DBE.a-90. 

In the Cañadón Amarillo area, 0.5 million barrels of oil were added to proved reserves in the reservoir Barda Negra + Tordillo as a result of the 

appraisal of well Cam.x-1002. 

In the Señal Picada area, 0.3 million barrels of oil were added to proved reserves in the reservoir SP-Quintuco as a result of the appraisal of well 

SP.a-299 together with the definition of a development plan for the eastern part of the field. 

In the Golfo San Jorge basin, offset wells in the vicinity of proved areas (principally at Manantiales Behr, Barranca Baya and Cañadon Yatel) added 

4.2 million of barrels of proved oil reserves. 

In the Manantiales Behr area, 1.6 million barrels of oil were added to proved reserves in the Grimbeek field as a result of several appraisals of wells 

in the Grimbeek north zone. 

A new small anticlinal structure of Tertiary sandstone which contains dry gas was discovered at the Cerro Piedra field in the south last year. 

Estimated proved reserves were 0.6 billion cubic feet of gas and the field was connected to existing facilities and is currently in production. 

—  Additional Information—Restatement of Previously Reported Reserves as of December 31, 2004 

On January 26, 2006, we announced that we would reduce our prior proved reserve estimates by 509 million boe (55% gas), including 493 million 
boe corresponding to our proved developed and undeveloped reserves and 16 million boe corresponding to proved developed and undeveloped reserves 
of affiliated companies. The Audit and Control Committee of our parent company, Repsol YPF, undertook an independent review of the facts and 
circumstances of the reduction in proved reserves. The Audit and Control Committee presented the final conclusions to the Board of Directors of Repsol 
YPF at its meeting of June 15, 2006. According to the independent review, the process for determining reserves with respect to our fields in Argentina 
was flawed from 2003 to 2004, and our personnel at times failed to apply properly SEC criteria for reporting proved reserves. 

The independent review reported that this was principally due to: 

•    lack of proper understanding of and training on the requirements of the SEC for booking proved reserves; 

•    undue optimism regarding the technical performance of the fields and focus on replacement ratio;

•    absence of a meaningful deliberative process for determining proved reserves and resolving disputes; and 

•    unwillingness to accept personal responsibility for reporting internally adverse facts regarding reserves and a corresponding tendency to view 

such issues as falling within another person’s or department’s jurisdiction. Over time, problems emerged and grew in the absence of 
delineation of responsibilities for booking proved reserves and in the absence of clear directives pre-2005. 

This notwithstanding, no evidence was found that any personnel involved in the reporting of proved reserves were motivated by personal gain. 

The tables below reflect the reconciliation of proved reserves as restated with proved reserves as originally reported for the year 2004: 

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As originally reported as of December 31 
Effect of the adjustment  
As of beginning of year 
Movement during the year 
Total 
As restated as of December 31 

As originally reported as of December 31 
Effect of the adjustment  
As of beginning of year 
Movement during the year 
Total 
As restated as of December 31 

Oil

Proved 
developed and 
undeveloped 
reserves

Proved 
developed 
reserves

(Millions of barrels)

908

(63)
18
(45)
863 

1,114

(67)
17
(50)
1,064   

Gas

Proved 
developed and 
undeveloped 
reserves

Proved 
developed 
reserves

(Billions of cubic feet)

6,820

5,041

(1,531)
387
(1,144)
5,676   

(1,383)
387
(996)
4,045 

As of December 31, 2004, the aggregate effect on proved reserves volumes of the reserves restatement was 254 million boe, comprising 50 million 
barrels of oil and 1,144 billion cubic feet of gas. This amounted to 11% of the total proved reserves originally stated at that date (2,330 million boe). Of 
the total aggregate effect 87% had been in the proved developed reserves category and 13% had been categorized as proved undeveloped reserves. The 
reserves restatement gave rise to an estimated reduction of Ps.1,132 million in the standardized measure of discounted future net cash flow for us. This 
effect represented approximately 3% of the total standardized measure that was originally stated at that date. 

Internal controls on reserves and reserves audits 

All of our oil and gas reserves held in consolidated companies have been estimated by our petroleum engineers. 

All the assumptions made, and the basis for the technical calculations used, in the estimates regarding our oil and gas proved reserves are based on 

the guides and definitions established by the SEC’s Rule 4-10(a) of Regulation S-X. 

In order to meet the high standard of “reasonable certainty,” reserves evaluations are stated taking into consideration additional guidance as to 
reservoir economic productivity requirements, acceptable proved area extensions, recovery factors and improved recovery methods, marketability under 
existing economic and operating conditions and project maturity. 

Where applicable, the volumetric method is used to determine the original quantities of petroleum in place. Estimates are made by using various 

types of logs, core analysis and other available data. Formation tops, gross thickness, and representative values for net pay thickness, porosity and 
interstitial fluid saturations are used to prepare structural maps to delineate each reservoir and isopachous maps to determine reservoir volume. Where 
adequate data is available and where circumstances are justified, material-balance and other engineering methods are used to estimate the original 
hydrocarbon in place. 

Estimates of ultimate recovery are obtained by applying recovery efficiency factors to the original quantities of petroleum in place. These factors 

are based on the type of energy inherent in the reservoir, analysis of the fluid and rock properties, the structural position of the properties and their 
production history. In some instances, comparisons are made with similar production reservoirs in the areas where more complete data is available. 

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Where adequate data is available and where circumstances are justified, material-balance and other engineering methods are used to estimate 
recovery factors. In these instances, reservoir performance parameters such as cumulative production, production rate, reservoir pressure, gas oil ratio 
behavior and water production are considered in estimating recovery efficiency used in determining gross ultimate recovery. 

In certain cases where the above methods could not be used, reserves are estimated by analogy to similar reservoirs where more complete data are 

available. 

Proved reserves are limited to: 

a. 

b. 

the portion of the reservoir delineated by drilling and defined by gas-oil and/or oil-water contacts, if any, and in the absence of 
information on fluid contacts, the lowest known structural occurrence of hydrocarbons controls the lower proved limit of the reservoir; 
and 

the economic limit, the expiration data of a production license or, in the case of gas reserves, the expiration of applicable gas sales 
contracts. 

All proved reserves estimates are also evaluated and tested based on all technical constraints and restrictions, including, but not limited to: 

•    For depletion-type reservoir or other reservoirs where performance has disclosed a reliable decline in production-rate trends or other diagnostic 
characteristics, reserves are estimated by the application of appropriate decline curves or other performance relationships. In analyzing decline 
curves, reserves are estimated to the calculated economic limits based on current economic conditions.

•    Reserves on undrilled acreage are limited to those drilling units offsetting productive units that were reasonably certain of production when 
drilled. Proved reserves for other undrilled units are claimed only where it could be demonstrated with certainty that there was continuity of 
production from the existing productive formation.

•    The reserves estimated are typically expressed as gross and net reserves. Gross reserves are defined as the total estimated petroleum to be 
produced from the properties at the year end. Net reserves are defined as that portion of the gross reserves attributable to our interest after 
deducting interests owned by third parties. 

•    Historical cost of operations and development of the properties evaluated, as well as product prices, including agreements affecting revenues 
and future operations, form an integral part of the estimates and form the basis for the economic evaluation for the engineer to assist in its 
estimates. 

To control the quality of reserves booking, we and Repsol YPF have established a process that is integrated into the internal control system of 

Repsol YPF. Repsol YPF’s process to manage reserves booking is centrally controlled and has the following components: 

a) The Quality Reserve Coordinator (QRC), which is a professional assigned at each Exploration and Production Business Unit of Repsol YPF 
to ensure that there are effective controls in the proved reserves estimation and approval process of the estimates of the Group (Repsol YPF and its 
consolidated subsidiaries, which include us) and the timely reporting of the related financial impact of proved reserves changes. These QRCs are 
responsible for reviewing proved reserves estimates and ensuring integrity and accuracy of reporting. 

b) A formal review through technical review committees to ensure that both technical and commercial criteria are met prior to the commitment 

of capital to projects. 

c) The Internal Audit, which examines the effectiveness of the Group’s financial controls, designed to assure the reliability of reporting and 

safeguarding of all the assets and examining the Group’s compliance with the law, regulations and internal standards. 

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d) A quarterly internal review from the Reserves Control Direction of Repsol YPF which is separate and independent from the operating 
business units, over the movement of proved reserves submitted by the Business Unit and associated with properties where technical, operational or 
commercial issues have arisen. 

e) Booking proved reserves in any given property at any given time requires central authorization. Furthermore, the volumes booked are 
externally audited on a periodic basis. The initial selection of the properties for external audit is performed by the Reserves Control Direction with 
the approval of Repsol YPF’s Audit and Control Committee. The properties for external audit in any given year are selected on the following basis: 

i. 

ii. 

all properties on a three year cycle, with properties audited in the first year of the cycle corresponding to those audited in the first year of 
the previous cycle; 

recently acquired properties not audited in the previous cycle and properties with respect to which there is new information which could 
materially affect prior reserves estimates; and

iii.  approximately one-third of the volume of the net proved reserves at the end of the year of the audit. 

The properties to be externally audited in any given year may be modified for various reasons, such as the presence of new technical or production 

information or legal, tax or regulatory changes. 

For those areas audited by independent firms, Repsol YPF’s proved reserves figures have to be within 7% or 10 million boe of the independent 
auditor figures for Repsol YPF to declare that the volumes have been ratified by an external auditor. In the event that the difference, above or below, is 
greater than the tolerance, Repsol YPF will reestimate its proved reserves to achieve this tolerance level or should disclose the figures of the external 
auditor. 

For external audit purposes, the reserves areas in Argentina are grouped into three segments: “main areas” to refer to those areas with greater 
volumes of reserves for each economic unit, so as to achieve a total amount audited equivalent to one-third of the total reserves of Repsol YPF, in 
accordance with the objective of auditing 100% of Repsol YPF group reserves in a three-year cycle. The amount of one-third of Repsol YPF’s total 
reserves equals approximately 62% of our total reserves in Argentina. 

In 2007, a new external auditing cycle began. D&M audited the “main areas” operated by us in the Noroeste, Cuyana and Neuquina basins, and 
GCA audited the “main areas” operated by us in the Golfo San Jorge basin. All these external audits in 2007 were performed as of September 30, 2007, 
and cumulatively covered 68.4% of our proved reserves in Argentina as of that date. 

Our total estimated proved reserves as of December 31, 2007 were 1,283 million boe. As of September 30, 2007, external reservoir engineers 

audited fields which, in our estimates as of such date, contained proved reserves of 896.7 million boe in the aggregate. 

We are required, in accordance with Resolution S.E. No. 324/06 of the Secretariat of Energy, to file annually and by March 31 of every year details 

of our estimates of reserves of oil and gas and resources with the Argentine Secretariat of Energy, as defined in that resolution and certified by an 
independent reserves auditor, although the relevant deadline relating to the filing of information for the year ending December 31, 2007 has been 
extended to April 30, 2008. The aforementioned certification only has the meaning established by Resolution S.E. No. 324/06, and is not to be 
interpreted as a certification of oil and gas reserves under the SEC rules. We last filed such a report for the year ended December 31, 2006 and the 
estimates of our proved oil and gas reserves filed with the Argentine Secretariat of Energy are materially higher than the estimates of our proved oil and 
gas reserves contained in this annual report mainly because: i) information filed with the Secretariat of Energy includes all properties of which we are 
operators, irrespective of the level of our ownership interests in such properties; ii) information filed with the Secretariat of Energy includes other 
categories of reserves and resources different to proved reserves that are not included in this annual report, which contains estimates of proved 
reserves consistent with the SEC’s guidance; and iii) the definition of proved reserves under Resolution S.E. No. 324/06 is different from the definition 
of “proved oil and gas reserves” established in Rule 4-10(a)(2) of Regulation S-X. Accordingly, all proved oil and gas reserve  

40

  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
   
   
estimates included in this annual report reflect only proved oil and gas reserves consistent with the rules and disclosure requirements of the SEC. 

Production 

The following table shows our historical average net daily oil (including crude oil, condensate and natural gas liquids) and gas production in 

Argentina by basin and average sales prices for the years indicated, as well as total average daily oil and gas production. 

Oil production(1)(2) 
Neuquina 
Golfo San Jorge 
Cuyana 
Noroeste 
Austral 

Total oil production 

Gas production(1) 
Neuquina 
Golfo San Jorge 
Cuyana 
Noroeste 
Austral 

Total gas production 

Average sales price 

Oil (U.S.$ per barrel)(3) 
Gas (U.S.$ per mcf) 

2007

For the Year Ended December 31,
2006
(thousands of 
barrels per 
day)

2005

192
101
27
5
3   
329   

201
105
28
7
5   
346   

(millions of 
cubic feet per 
day)

1,381
126
3
167
60
1,737

44.57
1.66

1,392
112
3
172
100
1,779

42.81
1.63

213
108
31
9
5 
366 

1,439
112
11
163
102
1,827

35.53
1.34

____________ 
(1) 

Oil and gas production amounts are stated before making any deductions with respect to royalties. Royalties are accounted for as a cost of 
production and are not deducted in determining net sales (see Note 2 (g) to the Audited Consolidated Financial Statements).

(2) 

(3) 

Includes crude oil, condensate and natural gas liquids.

The average sales price per barrel of oil represents the transfer price established by us, which approximates the Argentine market price.

In 2007, crude oil and natural gas production, on a boe basis, decreased by 4.1% compared to 2006. As compared to 2006, crude oil (including 

condensate and natural gas liquids production) decreased by 4.8% in 2007. With respect to natural gas, the production decreased by 2.5% in 2007 
compared to 2006. 

The composition of the crude oil produced by us in Argentina varies by geographic area. Almost all crude oil produced by us in Argentina has very 
low or no sulfur content. We sell substantially all the crude oil we produce in Argentina to our Refining and Marketing business line. Most of the natural 
gas produced by us is of pipeline quality. All of our gas fields produce commercial quantities of condensate, and substantially all of our oil fields 
produce associated gas. 

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Our lifting cost per boe amounted to Ps.15.7, Ps.11.8 and Ps.8.4 in 2007, 2006 and 2005, respectively. We calculate our lifting costs based on the 

figures presented in the results of operations of oil and gas producing activities under “Supplemental information on oil and gas producing activities 
(unaudited)” in the Audited Consolidated Financial Statements. We calculate lifting cost as the quotient of production costs (excluding royalties, local 
taxes, and other costs) divided by annual production (in terms of boe). In 2007, production costs amounted to Ps.6,996; royalties, local taxes, and other 
costs amounted to Ps.3,361; and our annual production was 232 mmboe. 

Natural gas transportation and storage capacity 

Decree No. 180/2004 created two trust funds to help finance an expansion of the North Pipeline operated by TGN (Transportadora Gas del Norte), 

whose capacity increased by 1.8 million cubic meters per day (63.6 mmcf/d) in 2005, and an expansion of the San Martín Pipeline operated by TGS 
(Transportadora Gas del Sur), whose capacity increased by 2.9 million cubic meters per day (102.4 mmcf/d) in 2005. Both expansions are currently 
operating. We contributed approximately U.S.$100 million in loans to the expansion of TGN’s North Pipeline. We believe this expansion will enable us 
to obtain an increased volume of Bolivian gas imports. Our loans have since been fully repaid. 

Natural gas is delivered by us through our own gathering systems to the trunk lines from each of the major basins. The firm capacity of the natural 
gas transportation pipelines in Argentina is mainly used by the distribution companies under long-term firm transportation contracts. All of the available 
capacity of the transportation pipelines is taken by firm customers mainly during the winter, leaving capacity available for interruptible customers in 
varying degrees throughout the rest of the year. 

We have continued to analyze the possible utilization of natural underground structures located near consuming markets as underground natural gas 

storage facilities, with the objective of storing natural gas during periods of low demand and selling the natural gas stored during periods of high 
demand. The most advanced gas storage project undertaken by us in Argentina is “Diadema”, which is located in the Patagonia region, near Comodoro 
Rivadavia City. The injection of natural gas into the reservoir started in January 2001, and we have now completed our fourth season of gas withdrawal. 
We have recently abandoned a gas injection/withdrawal pilot project in Lunlunta Carrizal, located 60 kilometers southeast of Mendoza, because of an 
inadequate gas cap. Accordingly, the assets corresponding to this project have been reduced to their recovery value. 

Natural gas supply contracts and exports 

As a consequence of the energy crisis in Argentina, since 2002 the Argentine government has established resolutions and regulations which regulate 
both the export and internal market. These regulations have affected Argentine producers’ ability to export natural gas. We have appealed the validity of 
the aforementioned regulations and resolutions and have invoked the occurrence of a force majeure event under certain export natural gas purchase and 
sales agreements, although certain counterparties to such agreements have rejected our position. See “Item 4. Information on the Company—Regulatory 
Framework and Relationship with the Argentine Government—Market Regulation”  and “Item 8. Financial Information—Legal Proceedings.” 

We have entered into a number of natural gas purchase and sale agreements pursuant to which we are frequently required to “deliver or pay” or 
under which our customers are required to “take or pay.”  Such contracts have been entered into only with domestic industrial users and power plants 
and in the export markets, while the domestic residential market is served through the injection of natural gas into the Argentine pipeline system, often 
pursuant to regulatory requirements (and not on a contractual basis with customers). 

We have recently had trouble meeting certain of our principal contractual supply obligations as a result of export restrictions imposed by the 
government.  See “Item 8. Financial Information—Legal Proceedings—Argentina.”  The principal contracts among these are described briefly below. 

We are currently committed to supply a daily quantity of 104 mmcf/d to the Methanex plant in Cabo Negro, Punta Arenas, in Chile (under three 20-
year agreements entered into in 1997, 1999 and 2005). In 2010, we are scheduled to begin to supply an additional 21 mmcf/d of natural gas to the plant. 

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We have a 12-year contract (entered into in 1999 and subsequently modified) to supply 26 mmcf/d of natural gas to the Termoandes power plant 

located in Salta, Argentina.  The natural gas comes from the Noroeste basin. This power plant provides power to a high voltage line running from Salta 
to Región II in Chile. 

We currently have several supply contracts with Chilean electricity producers (through the Gas Andes pipeline linking Mendoza, Argentina, to 
Santiago, Chile, which has a transportation capacity of 353 mmcf/d), including a 15-year contract (signed in 1998) to provide 63 mmcf/d to the San 
Isidro Electricity Company (Endesa) in Quillota, Chile (all of this plant’s natural gas needs), a 15-year contract (signed in 1999) to supply 20% of the 
natural gas requirements of the electricity company, Colbun (approximately 11 mmcf/d), and a 15-year contract (signed in 2003) to supply 35 mmcf/d to 
Gas Valpo.  We also have an 18-year contract (entered into in 1999) to deliver 99 mmcf/d of natural gas to a Chilean distribution company that 
distributes natural gas to residential and industrial clients through a natural gas pipeline (with a capacity of 318 mmcf/d) connecting Loma La Lata 
(Neuquén, Argentina) with Chile.  Finally, in Chile we also have natural gas supply contracts with certain thermal power plants in northern Chile 
utilizing two natural gas pipelines (with a carrying capacity of 300 mmcf/d each) connecting Salta, Argentina, to Northern Chile (Región II). 

In Brazil, we have a 20-year supply contract (entered into in 2000) to provide 99 mmcf/d of natural gas to AES’s thermal power plant through 
pipeline linking Aldea Brasilera, Argentina, to Uruguayana, Brazil (with a capacity of 560 mmcf/d).  We also have a contract to supply Petrobras with 
natural gas for its planned natural gas pipeline from Uruguayana to Porto Alegre, although the project has been delayed as a result of the excess of 
energy currently offered in the Southern and South-eastern parts of Brazil. 

The Argentine natural gas market 

We estimate (based on preliminary reports of amounts delivered by transport companies) that natural gas consumption in Argentina totaled 

approximately 1,428 Bcf in 2007. We estimate that the number of users connected to distribution systems throughout Argentina amounted to 
approximately 6.9 million as of December 31, 2007. The domestic natural gas market has grown significantly over recent years, driven by the forces of 
economic growth and domestic price and export constraints, although we do not believe that the natural gas market will continue to grow at the same 
rate as it has recently unless significant new discoveries are made or more gas is imported. 

In 2007, we sold approximately 35% of our natural gas to local residential distribution companies, approximately 58% to industrial users (including 

Mega (Compañía Mega S.A.) and Profertil (Profertil S.A.)) and power plants, and approximately 7% in exports to foreign markets (principally Chile). 
Approximately 79% of our natural gas sales were produced in the Neuquina basin. 

Demand for natural gas is currently driven by domestic constraints on natural gas prices that commenced in 2002 following the currency 
devaluation, which created very low prices for natural gas as compared to alternative fuels. Consequently, demand for natural gas has soared. 

In January 2004, Decree No. 181/04 authorized the Secretariat of Energy to negotiate with producers a pricing mechanism for natural gas supplied 
to industries and electric generation companies. Domestic market prices at the retail market level were excluded from these negotiations. Subsequently, 
the Argentine government has taken a number of additional steps aimed at satisfying domestic natural gas demand, including pricing regulations, export 
controls and higher export taxes and domestic market injection requirements. See “Item 4. Information on the Company—Regulatory Framework and 
Relationship with Argentine Government.” 

During the last several years the Argentine authorities have adopted a number of measures restricting exports of natural gas from Argentina, 
including issuing injection orders pursuant to Resolutions No. 659 and No. 752 (which require exporters to increase supply of natural gas into the 
Argentine domestic market), issuing express instructions to suspend exports, suspending processing of natural gas and adopting restrictions on natural 
gas exports imposed through transportation companies and/or emergency committees created to address crisis situations. 

These restrictions were imposed on all Argentine exporting producers, affecting natural gas exports from every producing basin. Exporting 

producers, such as us, have no choice but to comply with the government’s directions to  

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curtail exports in order to supply gas to the domestic market, whether such directions are issued pursuant to resolutions or otherwise. The above-
mentioned Resolutions provide penalties for non-compliance. Rule SSC No. 27/2004 issued by the Undersecretary of Fuels (“Rule 27”), for example, 
punishes the violation of any order issued thereunder by suspending or revoking the production concession. Resolutions No. 659 and No. 752 also 
provide that producers not complying with injection orders will have their concessions and export permits suspended or revoked and state that pipeline 
operators are prohibited from shipping any natural gas injected by a non-complying exporting producer. 

The government began suspending natural gas export permits pursuant to Rule 27 in April 2004, and in June 2004 the government began issuing 

injection orders to us under Resolution No. 659. Thereafter, the volumes of natural gas required to be provided to the domestic market under the 
different mechanisms described above have continued to increase substantially. The regulations pursuant to which the government has restricted natural 
gas export volumes in most cases do not have an express expiration date. Likewise, we have not received any documentation indicating that the 
government will suspend or withdraw these actions. Accordingly, we are unable to predict how long these measures will be in place, or whether such 
measures or any further measures adopted will affect additional volumes of natural gas. 

Because of the Argentine government’s restrictions, we could not meet our export commitments and were forced to declare force majeure under our 

natural gas export sales agreements. As a result of actions taken by the Argentine authorities, through actions described in greater detail under “Item 4. 
Information on the Company—Regulatory Framework and Relationship with Argentine Government,” we have been forced to reduce the export 
volumes authorized to be provided under the relevant agreements and permits as shown in the chart below: 

Year 

Maximum 
Contracted 
Volumes 
(MCV)(1)     
(in million 
cubic meters)    
5,995.2     
6,015.1     
5,979.1     

Restricted 
Volumes(2)
(in million 
cubic meters)
875
1,240
3,682

Percentage of 
Restricted 
Volumes vs 
MCV

14.5%
20.6%
61.6%

2005                                                              
2006                                                              
2007                                                              
__________ 
(1) 

Reflects the maximum quantities committed under our natural gas export contracts. Includes all of our natural gas export contracts pursuant to 
which natural gas is exported to Chile and Brazil.

(2) 

Reflects the volume of contracted quantities of natural gas for export that were not delivered.

In June 2007, we were compelled pursuant to Resolution No. 599/07 of the Secretariat of Energy to enter into an agreement with the government 

regarding the supply of natural gas to the domestic market during the period 2007 through 2011 (the “Agreement 2007-2011”). The purpose of the 
Agreement 2007-2011 is to guarantee the supply of the domestic market demand at the levels registered in 2006, plus the growth in demand by 
residential and small commercial customers (the “agreed demand levels”). Producers that have signed the Agreement 2007-2011, such as us, would 
commit to supply a part of the agreed demand levels according to certain shares determined for each producer based upon such producers’ shares of total 
Argentine production for the 36 months prior to April 2004. For this period, our share of production was approximately 36.5%, or 36.8 mmcm/d The 
Agreement 2007-2011 also provides guidelines for the terms of supply agreements for each market segment, and certain pricing limitations for each 
market segment. 

Argentine natural gas supplies 

Most of our proved natural gas reserves in Argentina are situated in the Neuquina basin (approximately 77% as of December 31, 2007), which is 

strategically located in relation to the principal market of Buenos Aires and is supported by sufficient pipeline capacity during most of the year. 
Accordingly, we believe that natural gas from this region has a competitive advantage compared to natural gas from other regions. The capacity of the 
natural gas pipelines in Argentina has proven in the past to be inadequate at times to meet peak-day winter demand, and there is no meaningful storage 
capacity in Argentina. Since 1993, local pipeline companies have added capacity allowing for  

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approximately an additional 63 million cubic meters per day of natural gas to be provided, improving their ability to satisfy peak-day winter demand but 
no assurances can be given that this additional capacity will be sufficient to meet demand. 

On June 29, 2006, the Bolivian and Argentine governments executed the Framework Agreement, pursuant to which they agreed that the natural gas 
imports from Bolivia to Argentina should be managed by ENARSA. The Framework Agreement establishes a 20-year delivery plan of between 7.7 and 
27.7 mmcm/d of Bolivian gas to Argentina. The delivery of volumes exceeding 7.7 mmcm/d is subject to the construction of the North East Pipeline, 
with an expected capacity of 20 mmcm/d. The agreed upon price was approximately U.S.$6.98/mmBtu in March 2008, and is periodically adjusted 
according to a formula based upon a basket of fuels. The increased cost of the natural gas purchased pursuant to the Framework Agreement is currently 
absorbed by ENARSA and financed by the Argentine government with the collection of export duties on natural gas. In the context of the Framework 
Agreement, on April 25, 2007, we accepted the offer made by ENARSA for the sale of natural gas obtained by ENARSA from the Republic of Bolivia 
through December 31, 2009. The principal terms and conditions of our agreement with ENARSA are as follows: (i) maximum contracted quantity of up 
to 4.4 mmcm/d; (ii) guaranteed quantity equal to 60% of the maximum contracted quantity; (iii) annual take-or-pay quantity equal to 60% of the 
maximum contracted quantity; (iv) price of U.S.$1.6/mmBtu for the natural gas plus U.S.$0.237/mmBtu for the liquid components contained therein; (v) 
price reopening at any time in relation to changes in Argentine government’s compensation to ENARSA; and (vi) limited allowed curtailments or 
interruptions of supply due to operative conditions and scheduled maintenance. This agreement is effective through December 31, 2009. See “Item 3. 
Key Information—Risk Factors—Risks Relating to the Argentine Oil and Gas Business and Our Business—The cessation of natural gas deliveries from 
Bolivia may have a material adverse effect on our long-term natural gas supply commitments.” 

During 2007, our domestic natural gas sales volumes were basically unchanged from the volumes sold in 2006. The customer mix in the two 

periods was also similar, although we have had to increase our provisions to the domestic residential market segment in 2007. 

Other investments and activities 

Natural gas liquids 

We participated in the development of Mega to increase its ability to separate liquid petroleum products from natural gas. Mega allowed YPF, 
through the fractionation of gas liquids, to increase production at the Loma La Lata gas field by approximately 5.0 million cubic meters per day in 2001. 

We own 38% of Mega, while Petrobras and Dow Chemical have stakes of 34% and 28%, respectively. 

Mega operates: 

•    A separation plant, which is located in Loma La Lata, in the province of Neuquén.

•    A natural gas liquids fractionation plant, which produces ethane, propane, butane and natural gasoline. This plant is located in the city of Bahía 

Blanca in the province of Buenos Aires. 

•    A pipeline that links both plants and that transports natural gas liquids.

•    Transportation, storage and port facilities in the proximity of the fractionation plant.

Mega required a total investment of approximately U.S.$715 million and commenced operations at the beginning of 2001. Mega’s maximum 
annual production capacity is 1.35 million tons of natural gasoline, LPG and ethane. YPF is Mega’s main supplier of natural gas. The production of the 
fractionation plant is used mainly in the petrochemical operations of Petroquímico Bahía Blanca (“PBB”) and is also exported by tanker to Petrobras’ 
facilities in Brazil. 

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Electricity market – Generation 

We participate in three power stations with an aggregate installed capacity of 1,622 megawatts (“MW”): 

•    A 45% interest in Central Térmica Tucumán (410 MW combined cycle) through Pluspetrol Energía; 

•    A 45% interest in Central Térmica San Miguel de Tucumán (370 MW combined cycle);

•    A  40%  interest  in  Central  Dock  Sud  (775  MW  combined  cycle  and  67  MW  gas  turbines),  directly  and  through  our  investment  in

Inversora Dock Sud S.A. 

Additionally, we operate assets that are part of Filo Morado, which has an installed capacity of 63 MW. 

In 2007, these plants collectively generated approximately 10,220 GWh in the aggregate. 

We also own and operates power plants supplied with natural gas produced by us, which produce power for use by us in other business units: 

•    Los Perales power plant (74 MW), which is located in the Los Perales natural gas field;

•    Chihuido de la Sierra Negra power plant (40 MW);

•    The power plant located at the Plaza Huincul refinery (40 MW).

    Natural gas distribution 

We currently hold through our subsidiary YPF Inversora Energética S.A. a 45.33% stake in Gas Argentino S.A. (“GASA”), which in turn holds a 

70% stake in Metrogas S.A. (“Metrogas”), which is a natural gas distributor in southern Buenos Aires and one of the main distributors in Argentina. 
During 2007, Metrogas distributed approximately 23.75 million cubic meters of natural gas per day to 2 million customers in comparison with 
approximately 23.35 million cubic meters of natural gas per day distributed to 2 million customers in 2006. The economic crisis that affected the country 
at the end of 2001 and beginning of 2002 caused a severe deterioration of the financial and operational situation of GASA. Thus the decision was made 
on March 25, 2002 to suspend payment of principal and interest on its entire financial debt. From then on, Metrogas’ management has focused on an 
efficient and rational use of its cash flow in order to be able to comply with all of the legal requirements agreed with the Argentine government with 
respect to its services. After negotiating a restructuring of its outstanding debt with its creditors, GASA has reached and executed on December 7, 2005 
an agreement (the Master Restructuring Agreement, or “MRA”) with its creditors, by which such creditors would exchange debt for equity in GASA 
and/or Metrogas. After this exchange is completed, YPF Inversora Energética S.A. will hold a 31.7% stake in GASA. The agreement has been presented 
to the National Antitrust Protection Board (Comisión Nacional de Defensa de la Competencia or “CNDC”) and the National Gas Regulatory Authority 
(Ente Nacional Regulador del Gas or “ENARGAS”) both Argentine governmental entities, and is subject to their approval as condition precedent to the 
closing of the MRA. The MRA included a creditors’ option to terminate that agreement if, by December 7, 2006, the closing of the debt restructuring 
had not occurred. While ENARGAS approval has been obtained, the CNDC has not yet granted its approval, and the closing is still pending. As of the 
date of this annual report, however, the creditors have not communicated their intention to terminate the MRA. 

At the same time, Metrogas has reached an agreement with its main creditors in order to restructure its financial debt and align its future financial 
commitments to the expected generation of funds. The main objective of the restructuring process is to modify certain terms and conditions included in 
its outstanding loans and negotiable agreements by adjusting interest rates and the amortization period so as to align them with the expected cash flow 
required for repayment of the indebtedness. Accordingly, on April 20, 2006, Metrogas entered into an out-of-court preventive agreement with creditors 
representing approximately 95% of its unsecured indebtedness, which became effective in May 2006. 

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Refining and Marketing 

During 2007, our Refining and Marketing activities included crude oil refining and transportation, and the marketing and transportation of refined 

fuels, lubricants, LPG, compressed natural gas and other refined petroleum products in the domestic wholesale and retail markets and certain export 
markets. 

The Refining and Marketing segment is organized into the following divisions: 

•    Refining and Logistic Division; 

- Refining Division 

- Logistic Division 

•    Domestic Marketing Division; 

•    Trading Division; and 

•    LPG General Division. 

We market a wide range of refined petroleum products throughout Argentina through an extensive network of sales personnel, YPF-owned and 
independent distributors, and a broad retail distribution system. In addition, we export refined products, mainly from the port at La Plata. The refined 
petroleum products marketed by us include gasoline, diesel, jet fuel, kerosene, heavy fuel oil and other crude oil products, such as motor oils, industrial 
lubricants, LPG and asphalts. 

Refining division 

We wholly own and operate three refineries in Argentina: 

•    La Plata Refinery, located in the province of Buenos Aires;

•    Luján de Cuyo Refinery, located in the province of Mendoza; and

•    Plaza Huincul Refinery, located in the province of Neuquén (together referred as the “Refineries”).

Our three wholly-owned refineries have an aggregate refining capacity of approximately 319,500 barrels per calendar day. The refineries are 
strategically located along our crude oil pipeline and product pipeline distribution systems. In 2007, 82.0 % of the crude oil processed by our refineries 
was supplied by our upstream operations. Through our stake in Refinor, we also own a 50% interest in a 26,100 barrel-per-calendar-day refinery located 
in the province of Salta, known as Campo Durán. 

The following table sets forth the throughputs and production yields for our refineries for each of the three years ended December 31, 2007: 

Throughput crude/Feedstock 
Production 
Diesel fuel 
Gasoline 
Jet fuel 
Base oils 

Fuel oil 

2007 

For the Year Ended December 31,
2006 
(millions of barrels)

2005

122.0 

118.1

113.1

46.9 
32.6 
6.1 
2.0 

47.7
31.1
5.7
2.8

43.9
32.3
6.6
2.7

(thousands of tons)

2,132 

1,548

1,198

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Coke 
LPG 
Asphalt 

For the Year Ended December 31,

919 
607 
201 

929
595
186

967
596
204

In 2007, overall volumes of crude oil / feedstock processed increased by 3.3% compared with 2006, and sales volumes in foreign markets decreased 

4.5% compared with 2006. In 2007, refinery capacity utilization reached over 100%, compared with 98.4% in 2006. 

In 2006, overall volumes of crude oil processed increased by 4.4% compared with 2005, and volumes sales in foreign markets were 25% lower than 

in 2005. Refinery capacity utilization in 2006 reached 98.4%, compared with 94.4% in 2005 and 93.1% in 2004. 

The La Plata refinery is the largest refinery in Argentina, with a capacity of 189,000 barrels of crude oil per calendar day. The refinery includes 
three distillation units, two vacuum distillation units, two catalytic cracking units, two coking units, a coker naphtha hydrotreater unit, a platforming unit, 
a gasoline hydrotreater, a diesel fuel hydrofinishing unit, an isomerization unit, an FCC (Fluid Cracking Catalysts) naphtha splitter and desulfuration 
unit, and a lubricants complex. The refinery is located at the port in the city of La Plata, in the province of Buenos Aires, approximately 60 kilometers 
from the City of Buenos Aires. In 2007 the refinery processed approximately 192,500 barrels of crude oil per calendar day.  The capacity utilization rate 
at the La Plata refinery for 2007 was 7.4% higher than in 2006. The capacity utilization rate at the La Plata refinery for 2006 was 3.9% higher than in 
2005. The crude oil processed at the La Plata refinery comes mainly from our own production in the Neuquina and Golfo San Jorge basins. Crude oil 
supplies for the La Plata refinery are transported from the Neuquina basin by pipeline and from the Golfo San Jorge basin by vessel, in each case to 
Puerto Rosales, and then by pipeline from Puerto Rosales to the refinery. 

In September 2003, we commenced the construction of a new FCC naphtha splitter and a desulfuration unit in the La Plata refinery, and in 2004, 

we commenced the construction of a new naphtha splitter in the Luján de Cuyo refinery. Both projects, which were completed during 2006, have 
allowed us to meet higher technical requirements imposed by legislation in Argentina that limit the level of sulfur in fuels (gasoline). In 2006, we began 
revamping the FCC unit in the La Plata refinery and expect to finish during 2008. When completed, this project will allow to us to process reduced crude 
for the first time in order to increase the production of gasoline and diesel. 

The Luján de Cuyo refinery has an installed capacity of 105,500 barrels per calendar day, the third largest capacity among Argentine refineries. The 

refinery includes two distillation units, a vacuum distillation unit, two coking units, one catalytic cracking unit, a platforming unit, a Methyl TerButil 
Eter (“MTBE”) unit, an isomerization unit, an alkylation unit, a naphtha splitter, and hydrocracking and hydrotreating units. In 2007, the refinery 
processed approximately 106,300  barrels of crude oil per calendar day.  In 2007 the capacity utilization rate was 2.5% lower than in 2006. The capacity 
utilization rate for 2006 was 4.0% higher than in 2005. Because of its location in the western province of Mendoza and its proximity to significant 
distribution terminals owned by us, the Luján de Cuyo refinery has become the primary facility responsible for providing the central provinces of 
Argentina with petroleum products for domestic consumption. The Luján de Cuyo refinery receives crude supplies from the Neuquina and Cuyana 
basins by pipeline directly into the facility. Approximately 88% of the crude oil processed at the Luján de Cuyo refinery is produced by us.  Most of the 
crude oil purchased from third parties comes from oil fields in Neuquén or in Mendoza. 

The Plaza Huincul refinery, located near the town of Plaza Huincul in the province of Neuquén, has an installed capacity of 25,000 barrels per 
calendar day. In 2007, the refinery processed approximately 27,100 barrels of crude oil per calendar day.  In 2007, the capacity utilization rate was 4.9% 
higher than in 2006. The capacity utilization rate for 2006 was 8.7% higher than in 2005. The only products currently produced commercially at the 
refinery are gasoline, diesel fuel and jet fuel, which are sold primarily in nearby areas and in the southern regions of Argentina. Heavier products, to the 
extent production exceeds local demand, are blended with crude oil and transported by pipeline from the refinery to La Plata refinery for further 
processing. The Plaza Huincul refinery receives its crude  

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supplies from the Neuquina basin by pipeline. Crude oil processed at the Plaza Huincul refinery is mostly produced by us. In 2007, 24% of the refinery’s 
crude supplies were purchased from third parties. 

During 1997 and 1998, each of our refineries and our Applied Technology Center were certified under ISO (International Organization for 

Standardization) 9002 and ISO 14000 (environmental performance) and were recertified under ISO 9001 (version 2000) in 2003. 

Capital expenditures in 2007 for efficiency and environmental projects and other improvements at the three refineries amounted to U.S.$74.8 

million. 

Logistic division 

Crude oil and products transportation and storage 

We have available for our use a network of five major pipelines, two of which are wholly owned by us. The crude oil transportation network 

includes nearly 2,700 kilometers of crude oil pipelines with approximately 640,000 barrels of aggregate daily transportation capacity of refined products. 
We have total crude oil tankage of approximately seven million barrels and maintain terminal facilities at five Argentine ports. 

Information with respect to YPF’s interests in its network of crude oil pipelines is set forth in the table below: 

From 
Puesto Hernández 
Puerto Rosales 
La Plata Refinery 
Brandsen 
Puesto Hernández/ P. Huincul/Allen 
Puesto Hernández 
___________ 
(1) 

To 
  Luján de Cuyo Refinery
  La Plata Refinery
  Dock Sud
  Campana
  Puerto Rosales
  Concepción (Chile)

YPF Interest  

Length 
(km) 

100%   
100%   
100%   
30%   
37%   
36%   

528
585
52
168
888(1)
428(2)

Daily 
Capacity 
(bpd)

85,200(3)
316,000
106,000
120,700
232,000
114,000

Includes two parallel pipelines of 513 kilometers each from Allen to Puerto Rosales, with a combined daily throughput of 232,000 barrels.

(2) 

This pipeline ceased operating on December 29, 2005.

(3)       The incorporation of new pumps in 2007 allowed an increase in the pumping volume of the Puesto Hernandez-Luján de Cuyo pipeline.

We own two crude oil pipelines in Argentina. One connects Puesto Hernández to the Luján de Cuyo refinery (528 kilometers), and the other 
connects Puerto Rosales to the La Plata refinery (585 kilometers ) and extends to Shell’s refinery in Dock Sud at the Buenos Aires port (52 kilometers). 
We also own a plant for the storage and distribution of crude oil in the northern province of Formosa with an operating capacity of 19,000 cubic meters, 
and two tanks in the city of Berisso, in the province of Buenos Aires, with 60,000 cubic meters of capacity. We own 37% of Oleoductos del Valle S.A., 
operator of an 888-kilometer pipeline network, its main pipeline being a double 513 kilometer pipeline that connects the Neuquina basin and Puerto 
Rosales. 

As of December 31, 2007, we had a 36% interest in the 428-kilometer Transandean pipeline, which transported crude oil from Argentina to 

Concepción in Chile. This pipeline ceased operating on December 29, 2005, as a consequence of the interruption of oil exports resulting from decreased 
production in the north of the province of Neuquén. At present, the future of the pipeline is under evaluation and the assets related to this pipeline were 
reduced to their recovery value. 

We also own 33.15% of Terminales Marítimas Patagónicas S.A., operator of two storage and port facilities: Caleta Córdova (province of Chubut), 

which has a capacity of 314,000 cubic meters, and Caleta Olivia (province of Santa Cruz), which has a capacity of 246,000 cubic meters. We also have a 
30% interest in Oiltanking Ebytem S.A., operator of the maritime terminal of Puerto Rosales, which has a capacity of 480,000 cubic meters, and of the 
crude oil pipeline that connect Brandsen (60,000 cubic meters of storage capacity) to the ESSO refinery in Campana (168 km), in the province of 
Buenos Aires. 

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In Argentina, we also operate a network of multiple pipelines for the transportation of refined products with a total length of 1,801 kilometers. We 
also own 16 plants for the storage and distribution of refined products with an approximate aggregate capacity of 983,620 cubic meters. Three of these 
plants are annexed to the refineries of Luján de Cuyo, La Plata and Plaza Huincul. Ten of these plants have maritime or river connections. We operate 53 
airplane refueling facilities (40 of them are wholly owned) with a capacity of 24,000 cubic meters, own 27 trucks, 112 suppliers and 16 dispensers. 
These facilities provide a flexible countrywide distribution system and allow us to facilitate exports to foreign markets, to the extent allowed pursuant to 
government regulations. Products are shipped mainly by truck, ship or river barge. 

Domestic marketing division 

Through our Marketing Division, we market gasoline, diesel fuel and other petroleum products to retail and wholesale customers. We also sell 

convenience food products through our service stations, although such sales do not account for a material amount of our revenues. 

In 2007, retail, wholesale, lubricants and specialties and aviation sales reached Ps.14,433 million, representing 59.4% of the Refining and 

Marketing segment’s consolidated revenue, with Ps.7,332 million generated by retail customers. 

As of December 31, 2007, the Marketing Division’s sales network in Argentina included 1,692 retail service stations (compared to 1,731 at 
December 31, 2006), of which 98 are directly owned by us, and the remaining 1,594 are affiliated service stations. Operadora de Estaciones de Servicio 
S.A. (“OPESSA”) (a wholly owned subsidiary of ours), operates 162 of our retail service stations, 75 of which are directly owned by us, 25 of which are 
leased to ACA (Automovil Club Argentino), and 62 of which are leased to independent owners. Additionally, we have a 50% interest in Refinor, which 
operates 77 retail service stations, 13 of which are directly owned by Refinor. We will continue our efforts to eliminate nonstrategic existing stations, 
and dealer-operated stations which do not comply with the level of operational efficiency that we require. 

We estimate that, as of December 31, 2007 and as of December 31, 2006, our points of sale accounted for 31.1% and 31.1% of the Argentine 
market, respectively. In Argentina, Shell, Petrobras and Esso are our main competitors and own approximately 15.6%, 12.7% and 10.5%, respectively, 
of the points of sale in Argentina, according to the latest information available to us. During 2007 all oil companies decreased the number of their points 
of sales. Additionally, the number of non-branded stations decreased substantially. 

During 2007, we slightly decreased our market share in the diesel fuel and gasoline markets from 54.8% to 54.7%, according to our analysis of data 

provided by the Secretariat of Energy. 

The “Red XXI” marketing program, launched in October 1997, which has significantly improved operational efficiency and provides us with 
immediate performance data from each station, is aimed at connecting most of our service stations network. As of December 31, 2007, 1,480 stations 
were linked to the Red XXI system. 

In 2007, we launched the Escuela Comercial YPF (YPF Business School), which focuses on performance, employability, operational excellence 
and customer satisfaction. The YPF Business School is aligned with our business strategy to promote a sense of belonging and common vision shared by 
all the members of our business chain. In 2007, the YPF Business School had carried out 1,300 didactic activities, within its four branches of study, 
involving 1,764 of our employees or business partners (owned and branded service stations and distributors). 

We began an ISO 9001 certification process involving our gas station network in 1998. Currently, we allow each gas station operator to certify its 

management system. YPF-owned service stations have been certified under ISO 9001 and 14000 standards for the past ten years, and a small number of 
such service stations have been certified under OHSAS (Occupational Health and Safety Assessment Series) 18001 and ISO 22000 in the past two years. 

Our sales to the agricultural sector are principally conducted through a network of 133 distribution bases operated by 119 distributors (eight of 

which are owned by us). 

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Sales to transportation, industrial, utility, and mining sectors are made primarily through our direct sales efforts. The main products sold in the 

domestic wholesale market include diesel fuel and fuel oil. During 2006, the direct sales unit has expanded its offering to the sale of products such as 
bags for storing grains, fertilizers and glyphosate. 

Sales to the aviation sector are made directly by us. The products sold in this market are jet fuel and aviation gasoline. 

Our lubricants and specialties unit markets a wide variety of products that includes lubricants, greases, asphalt, paraffin, base lubricant, decanted 

oil, carbon dioxide and coke. This unit is responsible for the production, distribution and commercialization of the products in the domestic and exports 
markets. These operations are ISO 9001: 2000 and Tierra 16949 certified. The lubricants production facilities are also ISO 14001 certified. 

During 2007, our lubricants and specialties sales to domestic markets increased by 10% from 1,216 million in 2006 to Ps.1,335 million in 2007. We 
export lubricants to 20 countries, including the United States. Sales to export markets increased by 10% from Ps.212 million in 2006 to Ps.234 million in 
2007. During 2007, total lubricants sales increased by 20%, total asphalt sales increased by 8% and total derivatives sales increased by 7%. 

In a market of increasing costs, the strategy of differentiation followed by our lubricants and specialties unit allowed it to maintain its position of 

leadership in the Argentine market despite experiencing a slightly decreased market share, from 36.9% in 2006 to 36.4% in 2007. Lead domestic 
automotive manufacturers Ford, VW, Scania, Seat, Porsche and General Motors, which represent more than 60% of the automotive industry in 
Argentina, exclusively use and recommend YPF-branded lubricant products. 

With respect to biofuels, our main objectives in this area are to secure our biofuel needs for the domestic market and to create associations for the 

production and marketing of biofuels in light of Argentina’s potential as a biofuels exporter to the European Union and other international markets. 

In January 2010, every oil company in Argentina will be obligated under Argentine law (Law 26,093) to blend all fuels with 5% of biofuels. 

In addition, and in line with our commitment to the environment and the development of alternative fuels, we have launched the Bioenergy 
Program 2007-2010 through the Biofuels Unit under its Lubricants and Specialties Division. This nationwide research and development program is 
being developed together with a university and other official entities with the objective of developing alternative crops to be used in the production of 
biofuels, thereby also promoting development in regional economies in Argentina. 

Trading division 

Our Trading Division sells crude oil and refined products to international customers and oil to domestic oil companies. Sales to international 
companies for the years 2007 and 2006 totaled Ps.4,664 million (U.S.$1,495 million) and Ps.4,945 million (U.S.$1,606 million), respectively, 90% and 
80% of which, respectively,  represented sales of refined products, 2% and 12% of which, respectively, represented crude oil deliveries and the 
remaining 8% of which (for both years) represented sales of marine fuels. On a volume basis, sales consisted of 2.68 million and 5.50 million barrels of 
crude oil, 14.7 million and 21.2 million barrels of refined products and 1.42 million and 1.67 million barrels of marine fuels, respectively. Exports 
include crude oil, unleaded gasoline, diesel fuel, fuel oil, liquefied petroleum gases, light naphtha and virgin naphtha. This Division’s export sales are 
made principally to the United States, Brazil and Mexico. Domestic sales of crude oil reached Ps.438 million (U.S.$140 million) and Ps.677 million 
(U.S.$221 million), and 3,45 million and 5.6 million barrels in the years 2007 and 2006, respectively. Domestic sales of marine fuels, reached Ps.255 
million (U.S.$82 million) and Ps.258 million (U.S.$84 million),  and 1.3 and 1.5 million barrels, respectively. 

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LPG general division 

Production 

We are one of the largest LPG producers in Argentina, with a yearly production of  789,011 tons in 2007 (including  260,754 tons of LPG destined 

for petrochemical usage). 

We also have a 50% interest in Refinor, a jointly-controlled company, which produced 365,464  tons of LPG in 2007. 

The LPG division obtains LPG from natural gas processing plants and from its refineries and petrochemical plant. It also purchases LPG from third 

parties as detailed in the following table: 

Purchase
(tons)
 2007

13,983
14,022
124,851
16,311 
169,167 

247,238
93,079
18,773 
359,090 

125,539 
69,456
723,252

LPG from Natural Gas Processing Plants:(1) 
General Cerri 
Filo Morado 
El Portón 
San Sebastián 

Total Upstream 

LPG from Refineries and Petrochemical Plants: 
La Plata Refinery 
Luján de Cuyo Refinery 
Ensenada Petrochemical Plant 

Total Refineries & Petrochemical Plants(2) 

LPG purchased from jointly controlled companies:(3) 
LPG purchased from unrelated parties (4) 

Total 
___________ 
(1) 

The San Sebastian plant is a joint-venture in which we own a 30% interest; El Portón is 100% owned by us; General Cerri belongs to a third 
party with which we have a processing agreement. Filo Morado comprises assets that are operated by us. 

(2) 

(3) 

(4) 

This production is net of 260,754 tons of LPG used as petrochemical feedstock (olefins derivatives, polybutenes and maleic).

Purchased from Refinor. 

Includes imports of 24,167 tons of LPG 

LPG marketing 

We sell LPG to the foreign market, the domestic wholesale market and to distributors that supply the domestic retail market. The LPG general 

division does not directly supply the retail market and such market is supplied by Repsol YPF Gas, which is not a YPF company. 

Our LPG sales for the years 2007 and 2006 can be broken down by market as follows: 

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Domestic market 
Retail to related parties under common control 
Other bottlers/propane network distributors 
Other wholesales 

Foreign market/exports 
Exports 
Total sales 

Sales Capacity

2007 

2006

(tons)

245,429
106,608
101,877

237,362
105,000
79,813

247,115
701,029   

359,501
781,676 

Total sales of LPG (excluding LPG used as petrochemical feedstock) to all markets (domestic and foreign markets combined) were Ps.889 million 

and Ps.820 million in 2007 and in 2006, respectively. 

Chemicals 

In 2007 and 2006, our revenues from chemical sales were Ps.3,455 million and Ps.3,048 million, respectively, and our operating income of the 

Chemicals segment was Ps.500 million and Ps.572 million, respectively. 

Petrochemicals are produced at five different facilities at our petrochemical complexes in Ensenada and Plaza Huincul. 

Our petrochemical production operations in Ensenada are closely integrated with our refining activities (La Plata Refinery). This close integration 

allows for a flexible supply of feedstock, the efficient use of byproducts (such as hydrogen) and others synergies. 

The main petrochemical products and production capacity per year are as follows: 

Ensenada: 

Aromatics 

BTX (Benzene, Toluene, Mixed Xylenes) 
Paraxylene 
Orthoxylene 
Cyclohexane 
Solvents 

Olefins Derivatives 

MTBE 
Butene I 
Oxoalcohols 
TAME 
LAB/LAS 
LAB 
LAS 
Polybutenes 

PIB 
Maleic 

Maleic Anhydride 

Plaza Huincul: 
Methanol 

Capacity

(tons per year)

244,000
38,000
25,000
95,000
66,100

60,000
25,000
35,000
105,000

52,000
25,000

26,000

17,500

411,000

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Natural gas, the raw material for methanol, is supplied by our upstream unit. The use of natural gas as a raw material allows us to monetize 

reserves, demonstrating the integration between the petrochemical and the upstream units. 

We also use high carbon dioxide-content natural gas in our methanol production. We completed a project for the treatment and conditioning of 
natural gas in Sierra Barrosa for this purpose. This project was completed in record time (commenced in August 2006 and completed in June 2007), 
allowing us to keep our methanol plant working at 50% of its production capacity during the winter period. The project enables us to process high 
carbon dioxide-content natural gas that could have not been otherwise commercialized. 

The raw materials for petrochemical production in Ensenada, including virgin naphtha, propane, butane and kerosene, are supplied mainly by the 

La Plata refinery. 

In 2007 and 2006, 57% and 50%, respectively, of our petrochemicals sales were made in the domestic market and 43% and 50%, respectively, were 
made in the export market. During 2007, the petrochemicals exports were destined to Mercosur countries, Latin America, Europe, and the United States. 

We also participate in the fertilizer business directly and through Profertil, our 50%-owned subsidiary. 

Profertil is jointly controlled by us and Agrium (a worldwide leader in fertilizers), that produces urea and ammonia and started operations in 2001. 

We are Profertil’s principal supplier of natural gas, supplying approximately 29% of Profertil’s feedstock. 

Our Ensenada petrochemical plant was certified under ISO 9001 in 1996 and recertified in October 2007. The La Plata petrochemical plant was 

certified under ISO 14001 in 2001 and recertified (version 2004) in October 2007. The plant was also certified under OHSAS 18001 in 2005 and 
recertified in October 2007. 

Our Methanol plant was certified under ISO 9001 (version 2000) and under ISO 14001 (Version 2000) in October 2007. 

Repsol YPF’s presence has strengthened our position in the global markets, improving our access to these markets due to a better negotiating 
position derived from Repsol YPF’s ability to offer a more complete portfolio of products and a sales force of its own, now located in regions previously 
served only by distributors. 

Research and Development 

We have a research and development facility in La Plata, Argentina, which works in cooperation with research and development activities of 

Repsol YPF. To carry out research and development programs of mutual interest, Repsol YPF maintains different cooperation agreements with 
universities, companies and other technological centers, both public and private. In 2007, Repsol YPF spent more than U.S.$12 million under these 
agreements (240 of which were in place). 

Repsol YPF participates actively in the research and development programs sponsored by different government administrations, taking part during 

2007 in 19 projects sponsored by the Spanish Administration and in seven European Union projects. 

The research and development projects and activities apply to the entire value chain of the business – including exploration of new deposits of 
crude or gas, extraction and conditioning for transportation, transformation and manufacture of products at industrial complexes, and distribution to the 
end customer. Repsol YPF’s two technology centers, one in Spain (Móstoles) and another in Argentina (La Plata), together employ a total of 450 people. 
In 2007, the Repsol YPF Technology Unit allocated U.S.$96 million to the activity, to which another U.S.$9 million were added in projects executed 
through the business units. 

In the Hydrocarbon Exploration and Production area, the projects are focused towards three main objectives: (i) increasing the production of crude 

oil and gas towards improving the petroleum recovery factor (both for heavy and  

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extra-heavy crudes, as well as for conventional ones); (ii) exploiting natural gas reserves through the liquefied natural gas chain and other alternatives; 
and (iii) reducing the environmental impact of operations and optimizing production and decreasing operating costs. 

In Petroleum Product Refinery and Marketing, the Technology Unit provides specialized technological support to the refineries to produce gasoline 

and gas oil of the best quality, complying ahead of time with the requirements of international standards. In addition, new products are also being 
developed, such as bio-fuels or better performing lubricants and asphalts. 

In Petrochemicals, Repsol YPF continued its significant effort with resources geared toward the consolidation of the proprietary technology 

developed in the last few years. 

Repsol YPF develops its own technology when it has a competitive advantage and acquires available technology (optimizing and adapting them for 
the markets in which it competes) when it proves to be more advantageous to its business goals. Repsol YPF’s goal is to increase the collaboration with 
the surrounding technological environment, universities and centers of public investigation, as well as with other companies, for a better use of and 
flexibility in the employment of resources and to decrease the risks in those areas in which it is involved. 

Competition 

The deregulation and privatization process created a competitive environment in the Argentine oil and gas industry. In our Exploration and 

Production business, we encounter competition from major international oil companies and other domestic oil companies in acquiring exploration 
permits and production concessions. Our Exploration and Production business may also encounter competition from oil and gas companies created and 
owned by certain Argentine provinces, including La Pampa, Neuquén and Chubut, as well as from ENARSA, the Argentine state-owned energy 
company, especially in light of the recent transfer of hydrocarbon properties to ENARSA and the provinces described under “Item 4. Information on the 
Company—Regulatory Framework and Relationship with the Argentine Government—Law No. 26,197.” In our Refining and Marketing and Chemicals 
businesses, we face competition from several major international oil companies, such as Esso (a subsidiary of ExxonMobil), Shell and Petrobras, as well 
as several domestic oil companies. In our export markets, we compete with numerous oil companies and trading companies in global markets. 

We operate in a dynamic market in the Argentine downstream industry and the crude oil and natural gas production industry. Crude oil and most 
refined products prices are subject to international supply and demand and Argentine regulations and, accordingly, may fluctuate for a variety of reasons. 
Some of the prices in the internal market are controlled by local authorities. See “Item 4. Information on the Company—Regulatory Framework and 
Relationship with the Argentine Government.” Changes in the domestic and international prices of crude oil and refined products have a direct effect on 
our results of operations and on our levels of capital expenditures. See “Item 3. Key Information—Risk Factors— Risks Relating to the Argentine Oil 
and Gas Business and Our Business—Oil and gas prices could affect our level of capital expenditures.” 

Environmental Matters 

YPF – Argentine operations 

Our operations are subject to a wide range of laws and regulations relating to the general impact of industrial operations on the environment, 
including emissions into the air and water, the disposal or remediation of soil or water contaminated with hazardous or toxic waste, fuel specifications to 
address air emissions and the effect of the environment on health and safety. We have made and will continue to make expenditures to comply with 
these laws and regulations. In Argentina, local, provincial and national authorities are moving toward more stringent enforcement of applicable laws. In 
addition, since 1997, Argentina has been implementing regulations that require  

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our operations to meet stricter environmental standards that are comparable in many respects to those in effect in the United States and in countries 
within the European Community. These regulations establish the general framework for environmental protection requirements, including the 
establishment of fines and criminal penalties for their violation. We have undertaken measures to achieve compliance with these standards and are 
undertaking various abatement and remediation projects, the more significant of which are discussed below. We cannot predict what environmental 
legislation or regulation will be enacted in the future or how existing or future laws will be administered or enforced. Compliance with more stringent 
laws or regulations, as well as more vigorous enforcement policies of regulatory agencies, could require additional expenditures in the future by us for 
the installation and operation of systems and equipment for remedial measures and could affect our operations generally. In addition, violations of these 
laws and regulations may result in the imposition of administrative or criminal fines or penalties and may lead to personal injury claims or other tort 
liabilities. 

In 2007, we continued to make investments in order to comply with new Argentine fuel specifications that are expected to come into effect between 

2008 and 2016, pursuant to Resolution No. 1283/06 of the Secretariat of Energy (which replaces the Resolution No. 398/03) relating, among other 
things, to the purity of diesel fuels. In addition, we have completed basic engineering studies and begun detailed engineering studies for the construction 
of diesel fuel oil desulfuration units at La Plata and Luján de Cuyo refineries. These projects have been delayed due to the postponement of the 
implementation of fuel specification regulations. We currently plan to invest a total of approximately U.S.$795 million between 2008 and 2012 to 
comply with the above-mentioned gasoline quality environmental specifications. 

At each of our refineries, we are performing, on a voluntary basis, remedial investigations and feasibility studies and pollution abatement projects, 
which are designed to address liquid effluent discharges and air emissions. In addition, we have implemented an environmental management system to 
assist our efforts to collect and analyze environmental data in its upstream and downstream operations. 

In addition to the projects related to the new specification standards mentioned above, we have begun to implement a broad range of environmental 
projects in the Domestic Exploration and Production and Refining and Marketing and Chemical segments. Capital expenditures for those environmental 
projects associated with Refining and Marketing segment’s projects during 2007 were approximately U.S.$62 million. The primary projects at La Plata 
include installation of separation and water treatment systems to replace existing systems, air pollution control devices, flare gas recovery systems, 
hydrocarbon recovery systems, double bottoms in several tanks and site remediation. In addition, during 2007, the storage facilities at certain service 
stations were replaced by new and safer technologies, such as double wall tanks, and hot oil furnaces were replaced by gas boilers. 

Capital expenditures associated with Domestic Exploration and Production environmental projects during 2007 were approximately U.S.$151 
million and included oil and gas recovery systems, flowlines and components construction, and remediation of well sites, tank batteries and oil spills in 
the gathering systems of fields. Expenditures will also be made to improve technical assistance and training and to establish environmental 
contamination remediation plans, air emissions monitoring plans and ground water investigation and monitoring programs. 

We and several other industrial companies operating in the La Plata area have entered into a community emergency response agreement with three 
municipalities and local hospitals, firefighters and other health and safety service providers to implement an emergency response program. This program 
is intended to prevent damages and losses resulting from accidents and emergencies, including environmental emergencies. Similar projects and 
agreements were developed at other refineries as well. 

In 1991, we entered into an agreement (Convenio de Cooperación Interempresarial, or “CCI”) with certain other oil and gas companies to 

implement a plan to reduce and assess environmental damage resulting from oil spills in Argentine waters to reduce the environmental impact of 
potential oil spills offshore. This agreement involves consultation on technological matters and mutual assistance in the event of any oil spills in rivers or 
at sea due to accidents involving tankers or offshore exploration and production facilities. 

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Regarding climate change, we have been developing a strategy since 2002 to address the requirements of the Kyoto Protocol. The main elements of 

this plan are the following: 

•    actively promote the identification and pursuit of opportunities to reduce greenhouse gas emissions within our operations. For that, we 

take into account the cost of carbon in our business decisions; and

•    intensify the execution of internal projects for generating credit by the clean development mechanisms that help our parent company, 
Repsol YPF, meet its obligations. We collaborate with competent authorities from the countries in which we operate, in particular the 
Argentina Clean Development Mechanism Office (“OAMDL”).

Our estimated capital expenditures and future investments are based on currently available information and on current laws, and future changes in 

laws or technology could cause a revision of such estimates. In addition, while we do not expect environmental expenditures to have a significant impact 
on our future results of operations, changes in management’s business plans or in Argentine laws and regulations may cause expenditures to become 
material to our financial position, and may affect results of operations in any given year. 

YPF Holdings—Operations in the United States 

Laws and regulations relating to health and environmental quality in the United States affect YPF Holdings’ operations in the United States. See 
“Item 4. Information on the Company—Regulatory Framework and Relationship with the Argentine Government—U.S. Environmental Regulations.” 

In connection with the sale of Diamond Shamrock Chemicals Company (“Chemicals”) to a subsidiary of Occidental Petroleum Corporation 
(“Occidental”) in 1986, Maxus agreed to indemnify Chemicals and Occidental from and against certain liabilities relating to the business and activities 
of Chemicals prior to the September 4, 1986 closing date (the “Closing Date”), including certain environmental liabilities relating to certain chemical 
plants and waste disposal sites used by Chemicals prior to the Closing Date. 

In addition, under the agreement pursuant to which Maxus sold Chemicals to Occidental, Maxus is obligated to indemnify Chemicals and 
Occidental for certain environmental costs incurred on projects involving remedial activities relating to chemical plant sites or other property used to 
conduct Chemicals’ business as of the Closing Date and for any period of time following the Closing Date which relate to, result from or arise out of 
conditions, events or circumstances discovered by Chemicals and as to which Chemicals provided written notice prior to September 4, 1996, irrespective 
of when Chemicals incurs and gives notice of such costs. 

Tierra Solutions Inc. (“Tierra”) was formed to deal with the results of the alleged obligations of Maxus, as described above, resulting from actions 

or facts that occurred primarily between the 1940s and 1970s while Chemicals was controlled by other companies. 

See “Item 8. Financial Information—Legal Proceedings—YPF Holdings” below for a description of environmental matters in connection with YPF 

Holdings. 

Property, Plant and Equipment 

Most of our property, consisting of interests in crude oil and natural gas reserves, refineries, storage, manufacturing and transportation facilities and 

service stations, is located in Argentina. We also own property in the United States. See “—Exploration and Production—Principal properties—
International properties—United States.” 

There are several classes of property which we do not own in fee. Our petroleum exploration and production rights are in general based on 
sovereign grants of concession. Upon the expiration of the concession, our exploration and production assets associated with the particular property 
subject to the relevant concession revert to the government. In addition, as of December 31, 2007, we leased 87 service stations to third parties and also 
had activities with service stations that are owned by third parties and operated by them under a supply contract with us for the distribution of our 
products. 

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Regulatory Framework and Relationship with the Argentine Government 

Overview 

The Argentine oil and gas industry is currently subject to certain policies and regulations that have resulted in domestic prices that are substantially 

lower than prevailing international market prices, export restrictions, domestic supply requirements that oblige us from time to time to divert supplies 
from the export or industrial markets in order to meet domestic consumer demand, and increasingly heavy export duties on the volumes of hydrocarbons 
allowed to be exported. These governmental pricing limitations, export controls and tax policies have been implemented in an effort to satisfy increasing 
domestic market demand at prices below international market prices. 

The Argentine oil and gas industry is regulated by Law No. 17,319, referred to as the “Hydrocarbons Law,” which was adopted in 1967 and 
amended by Law No. 26,197 in 2007, which established the general legal framework for the exploration and production of oil and gas, and Law No. 
24,076, referred to as the “Natural Gas Law,” enacted in 1992, which established the basis for deregulation of natural gas transportation and distribution 
industries. 

The executive branch of the Argentine government issues the regulations to complement these laws. The regulatory framework of the 

Hydrocarbons Law was established on the assumption that the reservoirs of hydrocarbons would be national properties and Yacimientos Petrolíferos 
Fiscales Sociedad del Estado, our predecessor, would lead the oil and gas industry and operate under a different framework than private companies. In 
1992, Law No. 24,145, referred to as the “Privatization Law,” privatized YPF and provided for transfer of hydrocarbon reservoirs from the Argentine 
government to the provinces, subject to the existing rights of the holders of exploration permits and production concessions. 

The Privatization Law granted us 24 exploration permits covering approximately 132,735 square kilometers and 50 production concessions 
covering approximately 32,560 square kilometers. The Hydrocarbons Law limits to five the number of concessions that may be held by any one entity, 
and also limits the total area of exploration permits that may be granted to a single entity. Based on our interpretation of the law, we were exempted from 
such limit with regard to the exploration permits and production concessions awarded to us by the Privatization Law. Nevertheless, the National 
Department of Economy of Hydrocarbons (Dirección Nacional de Economía de los Hidrocarburos), applying a restrictive interpretation of Section 25 
and 34 of the Hydrocarbons Law, has objected to the award of new exploration permits and production concessions in which we have a 100% interest. 
As a result, our ability to acquire 100% of new exploration permits and/or production concessions has been hindered, although this interpretation has not 
impeded our ability to acquire any permits or concessions where an interest is also granted to other parties. As a consequence of the transfer of 
ownership of certain hydrocarbons areas to the provinces, we participate in competitive bidding rounds organized since the year 2000 by several 
provincial governments for the award of contracts for the exploration of hydrocarbons. 

In October 2004, the Argentine Congress enacted Law No. 25,943 creating a new state-owned energy company, Energía Argentina S.A. The 

corporate purpose of ENARSA is the exploration and exploitation of solid, liquid and gaseous hydrocarbons, the transport, storage, distribution, 
commercialization and industrialization of these products, as well as the transportation and distribution of natural gas, and the generation, transportation, 
distribution and sale of electricity. Moreover, Law No. 25,943 granted to ENARSA all exploration concessions in respect to offshore areas located 
beyond 12 nautical miles from the coast line up to the outer boundary of the continental shelf that were vacant at the time of the effectiveness of this law 
(i.e., November 3, 2004). 

In addition, in October 2006, Law No. 26,154 created a regime of tax incentives aimed at encouraging hydrocarbon exploration and which apply to 
new exploration permits awarded in respect of the offshore areas granted to ENARSA and those over which no rights have been granted to third parties 
under the Hydrocarbons Law, provided the provinces in which the hydrocarbon reservoirs are located adhere to this regime. Association with ENARSA 
is a precondition to qualifying for the benefits provided by the regime created by Law No. 26,154. The benefits include: early reimbursement of the 
value added tax for investments made and expenses incurred during the exploration period and for investments made within the production period; 
accelerated amortization of investments  

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made in the exploration period and the accelerated recognition of expenses in connection with production over a period of three years rather than over 
the duration of production; and exemptions to the payment of import duties for capital assets not manufactured within Argentina. As of the date of this 
annual report, we have not used the tax incentives previously mentioned. 

Ownership of hydrocarbons reserves was transferred to the provinces through the enactment of the following legal provisions that effectively 

amended the Hydrocarbons Law: 

•    In 1992, the Privatization Law approved the transfer of the ownership of hydrocarbons reserves to the provinces where they are located. 

However, this law provided that the transfer was conditioned on the enactment of a law amending the Hydrocarbons Law to contemplate the 
privatization of Yacimientos Petrolíferos Fiscales Sociedad del Estado.

•    In October 1994, the Argentine National Constitution was amended and pursuant to Article 124 thereof, provinces were granted the primary 

control of natural resources within their territories.

•    In August 2003, Executive Decree No. 546/03 transferred to the provinces the right to grant exploration permits, hydrocarbons exploitation 
and transportation concessions in certain locations designated as “transfer areas,” as well as in other areas designated by the competent 
provincial authorities. 

•    In January 2007, Law No. 26,197 acknowledged the provinces’ ownership of the hydrocarbon reservoirs in accordance with Article 124 of the 
National Constitution (including reservoirs to which concessions were granted prior to 1994) and granted provinces the right to administer 
such reservoirs. 

Law No. 26,197 

Law No. 26,197, which amended the Hydrocarbons Law, transferred to the provinces and the City of Buenos Aires the ownership over all 

hydrocarbon reservoirs located within their territories and in the adjacent seas up to 12 nautical miles from the coast. Law No. 26,197 also provides that 
the hydrocarbon reservoirs located beyond 12 nautical miles from the coast to the outer limit of the continental shelf shall remain within the ownership 
of the federal government. 

Pursuant to Law No. 26,197, the Argentine Congress shall continue to enact laws and regulations to develop oil and gas resources existing within 
all of the Argentine territory (including its sea), but the governments of the provinces where the hydrocarbon reservoirs are located shall be responsible 
for the enforcement of these laws and regulations, the administration of the hydrocarbon fields and shall act as granting authorities for the exploration 
permits and production concessions. However, the administrative powers granted to the provinces shall be exercised within the framework of the 
Hydrocarbons Law and the regulations which complement this law. 

Consequently, even though Law No. 26,197 established that the provinces shall be responsible for administering the hydrocarbon fields, the 
Argentine Congress retained its power to issue rules and regulations regarding the oil and gas legal framework. Additionally, the Argentine government 
retained the power to determine the national energy policy. 

It is expressly stated that the transfer will not affect the rights and obligations of exploration permit and production concession holders, or the basis 

for the calculation of royalties, which shall be calculated in accordance with the concession title and paid to the province where the reservoirs are 
located. 

Law No. 26,197 provides that the Argentine government shall retain the authority to grant transportation concessions for: (i) transportation 

concessions located within two or more provinces territory and (ii) transportation concessions directly connected to export pipelines for export purposes. 
Consequently, transportation concessions which are located within the territory of only one province and which are not connected to export facilities 
shall be transferred to the provinces. 

Finally, Law No. 26,197 grants the following powers to the provinces: (i) the exercise in a complete and independent manner of all activities related 

to the supervision and control of the exploration permits and production  

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concessions transferred by Law No. 26,197; (ii) the enforcement of all applicable legal and/or contractual obligations regarding investments, rational 
production and information and surface fee and royalties payment; (iii) the extension of legal and/or contractual terms; (iv) the application of sanctions 
provided in the Hydrocarbons Law; and (v) all the other faculties related to the granting power of the Hydrocarbons Law. 

Public Emergency 

On January 6, 2002, the Argentine Congress enacted Law No. 25,561, the Public Emergency and Foreign Exchange System Reform Law (“Public 

Emergency Law”), which represented a profound change of the economic model effective as of that date, and rescinded the Convertibility Law No. 
23,928, which had been in effect since 1991 and had pegged the peso to the dollar on a one-to-one basis. In addition, the Public Emergency Law granted 
the executive branch of the Argentine government authority to enact all necessary regulations in order to overcome the economic crisis in which 
Argentina was then immersed. 

After the enactment of the Public Emergency Law, several other laws and regulations have been enacted. The following are the most significant 

measures enacted to date in Argentina to overcome the economic crisis: 

•    Conversion into pesos of (i) all funds deposited in financial institutions at an exchange rate of Ps.1.40 for each U.S.$1.00 and (ii) all 

obligations (e.g., loans) with financial institutions denominated in foreign currency and governed by Argentine law at an exchange rate of 
Ps.1.00 for each U.S.$1.00. The deposits and obligations converted into pesos would be thereafter adjusted by a reference stabilization index, 
the Coeficiente de Estabilidad de Referencia (“CER”), to be published by the Argentine Central Bank. Obligations governed by non-Argentine 
law have not been converted to pesos under the new laws. Substantially all of our dollar-denominated debt is governed by non-Argentine law.

•    Conversion into pesos at an exchange rate of Ps.1.00 for each U.S.$1.00 of all obligations outstanding among private parties at January 6, 2002 
that are governed by Argentine law and payable in foreign currency. The obligations so converted into pesos would be adjusted through the 
CER index, as explained above. In the case of non-financial obligations, if as a result of the mandatory conversion into pesos the resulting 
intrinsic value of goods or services that are the object of the obligation are higher or lower than their price expressed in pesos, either party may 
request an equitable adjustment of the price. If they cannot agree on such equitable price adjustment, either party may resort to the courts. 
Executive Decree No. 689/02 established an exception to the Public Emergency Law and regulations and provides that the prices of long-term 
natural gas sale and transportation agreements executed before the enactment of the Decree and denominated in U.S. dollars will not be 
converted into pesos (Ps.1.00 for each U.S.$1.00) when the natural gas is exported.

•    Conversion into pesos at an exchange rate of Ps.1.00 for each U.S.$1.00 of all tariffs of public services, the elimination of the adjustment of 
tariffs by foreign indexes such as the Purchaser Price Index (PPI)/Consumer Price Index (CPI) index, and the imposition of a period of 
renegotiation with the governmental authorities thereafter.

•    Imposition of customs duties on the export of hydrocarbons with instructions to the executive branch of the Argentine government to set the 

applicable rate thereof. See also “—Taxation” below.

Exploration and Production 

The Hydrocarbons Law establishes the basic legal framework for the regulation of oil and gas exploration and production in Argentina. The 

Hydrocarbons Law empowers the executive branch of the Argentine government to establish a national policy for development of Argentina’s 
hydrocarbon reserves, with the principal purpose of satisfying domestic demand. 

Pursuant to the Hydrocarbons Law, exploration and production of oil and gas is carried out through exploration permits, production concessions, 

exploitation contracts or partnership agreements. The Hydrocarbons Law also permits surface reconnaissance of territory not covered by exploration 
permits or production concessions upon  

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authorization of the Secretariat of Energy and/or competent provincial authorities, as established by Law No. 26,197, and with permission of the private 
property owner. Information obtained as a result of surface reconnaissance must be provided to the Secretariat of Energy and/or competent provincial 
authorities, which may not disclose this information for two years without permission of the party who conducted the reconnaissance, except in 
connection with the grant of exploration permits or production concessions. 

Under the Hydrocarbons Law, the federal and/or competent provincial authorities may grant exploration permits after submission of competitive 

bids. Permits granted to third parties in connection with the deregulation and demonopolization process were granted in accordance with procedures 
specified in Executive Decrees No. 1055/89, 1212/89 and 1589/89 (the “Oil Deregulation Decrees”), and permits covering areas in which our 
predecessor company, Yacimientos Petrolíferos Fiscales S.A., was operating at the date of the Privatization Law and that were granted to us by such law. 
In 1991, the executive branch of the Argentine government established a program under the Hydrocarbons Law (known as Plan Argentina) pursuant to 
which exploration permits were auctioned. The holder of an exploration permit has the exclusive right to perform the operations necessary or appropriate 
for the exploration of oil and gas within the area specified by the permit. Each exploration permit may cover only unproved areas not to exceed 10,000 
square kilometers (15,000 square kilometers offshore), and may have a term of up to 14 years (17 years for offshore exploration). The 14-year term is 
divided into three basic terms and one extension term. The first basic term is up to four years, the second basic term is up to three years, the third basic 
term is up to two years and the extension term is up to five years. At the expiration of each of the first two basic terms, the acreage covered by the permit 
is reduced, at a minimum, to 50% of the remaining acreage covered by the permit, with the permit holder deciding which portion of the acreage to keep. 
At the expiration of the three basic terms, the permit holder is required to revert all of the remaining acreage to the Argentine government, unless the 
holder requests an extension term, in which case such grant is limited to 50% of the remaining acreage. 

If the holder of an exploration permit discovers commercially exploitable quantities of oil or gas, the holder has the right to obtain an exclusive 
concession for the production and development of this oil and gas. The Hydrocarbons Law provides that oil and gas production concessions shall remain 
in effect for 25 years as from the date of the award of the production concession, in addition to any remaining exploration term at the date of such award. 
The Hydrocarbons Law further provides for the concession term to be extended for up to 10 additional years, subject to terms and conditions approved 
by the grantor at the time of the extension. Under Law No. 26,197, the authority to extend the terms of current and new permits and concessions and has 
been vested in the governments of the provinces in which the relevant block is located (and the Argentine government in respect of offshore blocks 
beyond 12 nautical miles). In order to be entitled to the extension, a concessionaire, such as us, must have complied with all of its obligations under the 
Hydrocarbons Law, including, without limitation, evidence of payment of taxes and royalties and compliance with environmental, investment and 
development obligations. Upon the expiration of the 10-year extension period of the current concessions, the provinces are entitled to award new 
concessions or contracts in respect of the relevant blocks. 

A production concession also confers on the holder the right to conduct all activities necessary or appropriate for the production of oil and gas, 

provided that such activities do not interfere with the activities of other holders of exploration permits and production concessions. A production 
concession entitles the holder to obtain a transportation concession for the oil and gas produced. See “—Transportation of Liquid Hydrocarbons” below. 

Exploration permits and production concessions require holders to carry out all necessary work to find or extract hydrocarbons, using appropriate 

techniques, and to make specified investments. In addition, holders are required to: 

•    avoid damage to oil fields and waste of hydrocarbons;

•    adopt adequate measures to avoid accidents and damage to agricultural activities, fishing industry, communications networks and the water

table; and 

•    comply with all applicable federal, provincial and municipal laws and regulations.

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According to the Hydrocarbons Law, holders of production concessions, including us, also are required to pay royalties to the province where 
production occurs. A 12% royalty is payable on the value at the wellhead (equal to the price upon delivery of the product, less transportation, treatment 
costs and other deductions) of crude oil production and the natural gas volumes commercialized. The value is calculated based upon the volume and the 
sale price of the crude oil and gas produced, less the costs of transportation and storage. In addition, if a concession holder allots crude oil production for 
further industrialization processes at its plants, the concession holder is required to agree with the provincial authorities or the Secretariat of Energy, as 
applicable, on the reference price to be used for purposes of calculating royalties. 

However, in January 2008, the Secretariat of Energy passed Disposition No. 1, which provided guidelines for the calculation of royalties. 

Disposition No. 1 sets a minimum reference price for the calculation of royalties and does not permit downward adjustments of this price based upon the 
quality of crude oil. As a result, the reference price for some of our production calculated according to Disposition No. 1 is approximately U.S.$10 per 
barrel higher than the price calculated according to the methodology set forth in the Hydrocarbons Law, as discussed above. We are currently evaluating 
Disposition No. 1. 

In addition to the above, the Public Emergency Law, which created the export withholdings, established that export withholdings were not to be 
deducted from the export price for purposes of calculating the 12% royalties. The royalty expense is accounted for as a production cost. Any oil and gas 
produced by the holder of an exploration permit prior to the grant of a production concession is subject to the payment of a 15% royalty. See “Item 8. 
Financial Information—Legal Proceedings—Argentina—Neuquén royalty disputes.” 

Furthermore, pursuant to Sections 57 and 58 of the Hydrocarbons Law, holders of exploration permits and production concessions must pay an 
annual surface fee that is based on acreage of each block and which varies depending on the phase of the operation, i.e., exploration or production, and in 
the case of the former, depending on the relevant period of the exploration permit. Executive Decree No. 1,454/07, dated October 17, 2007, which 
significantly increased the amount of exploration and production surface fees expressed in Argentine pesos that are payable to the provinces in which the 
hydrocarbon fields are located or, in the case of offshore and certain other fields, to the Argentine government. In all cases, the surface fee increased by 
at least eight times, although the effect of this increase is not material to us due to the relatively low sums involved. For example, in 2007 we paid a total 
of approximately Ps.33 million in surface fees. In 2008, we expect to pay approximately Ps.90 million in such fees pursuant to Sections 57 and 58 of the 
Hydrocarbons Law, due to the application of the recent increases for a full year. 

Exploration permits and production or transportation concessions may be terminated upon any of the following events: 

•    failure to pay annual surface taxes within three months of the due date;

•    failure to pay royalties within three months of the due date;

•    substantial and unjustifiable failure to comply with specified production, conservation, investment, work or other obligations;

•    repeated failure to provide information to, or facilitate inspection by, authorities or to utilize adequate technology in operations;

•    in the case of exploration permits, failure to apply for a production concession within 30 days of determining the existence of commercially

exploitable quantities of hydrocarbons; 

•    bankruptcy of the permit or concession holder; 

•    death or end of legal existence of the permit or concession holder; or

•    failure  to  transport  hydrocarbons  for  third  parties  on  a  non-discriminatory  basis  or  repeated  violation  of  the  authorized  tariffs  for  such

transportation. 

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The Hydrocarbons Law further provides that a cure period, of a duration to be determined by the Secretariat of Energy and/or the competent 

provincial authorities, must be provided to the defaulting concessionaire prior to the termination. 

When a production concession expires or terminates, all oil and gas wells, operating and maintenance equipment and facilities automatically revert 

to the province where the reservoir is located or to the Argentine government in the case of reservoirs under federal jurisdiction (i.e., located on the 
continental shelf or beyond 12 nautical miles offshore), without compensation to the holder of the concession. 

Substantially all of our production concessions expire in 2017. The granting of an extension is an unregulated process and normally involves 
lengthy negotiations between the applicant and the relevant government. Although the Hydrocarbons Law provides that applications must be submitted 
at least six months prior to the concession expiration date, it is industry practice to commence the process far earlier, typically as soon as the technical 
and economic feasibility of new investment projects beyond the concession term become apparent. 

On March 16, 2006, the Secretariat of Energy issued Resolution S.E. No. 324/06 establishing that holders of exploration permits and hydrocarbon 

concessions must file with such agency details of their proved reserves existing in each of their areas, certified by an external reserves auditor, each year. 
Holders of hydrocarbon concessions that export hydrocarbons are obliged to certify their oil and gas proved reserves. The aforementioned certification 
only has the meaning established by Resolution S.E. No. 324/06, according to which it is not to be interpreted as a certification of oil and gas reserves 
under the SEC rules. See “Item 4. Information on the Company—Exploration and Production—Reserves”. 

Security Zones Legislation 

Argentine law restricts the ability of non-Argentine companies to own real estate, oil concessions or mineral rights located within, or with respect to 

areas defined as, security zones (principally border areas). Prior approval of the Argentine government is required: 

•    for non-Argentine shareholders to acquire control of us; or

•    if and when the majority of our shares belong to non-Argentine shareholders, such as is currently the case, for any additional acquisition of real 

estate, mineral rights, oil or other Argentine government concessions located within, or with respect to, security zones. 

Because approval of Class A shareholders is required for a change in our control under our bylaws, and approval of the executive branch of the 
Argentine government or provincial governments is required for the grant or transfer of hydrocarbon permits and concessions, we believe that possible 
additional requirements under the security zone legislation will not have a significant impact on our operations. 

Natural Gas Transportation and Distribution 

In June 1992, the Natural Gas Law was passed, providing for the privatization of Gas del Estado and the deregulation of the price of natural gas. To 

effect the privatization of Gas del Estado, the five main trunk lines of the gas transmission system were divided into two systems principally on a 
geographical basis (the northern and the southern trunk pipeline systems). This was designed to give both systems access to gas sources and to the main 
centers of demand in and around Buenos Aires. These systems were transferred into two new transportation companies. The Gas del Estado distribution 
system was divided into eight regional distribution companies, including two distribution companies serving the greater Buenos Aires area. Shares of 
each of the transportation and distribution companies were sold to consortiums of private bidders. Likewise, in 1997, a distribution license for the 
provinces of Chaco, Formosa, Entre Ríos, Corrientes and Misiones was granted to private bidders. 

The regulatory structure for the natural gas industry creates an open-access system, under which gas producers, such as us, will have open access to 

future available capacity on transmission and distribution systems on a non-discriminatory basis. 

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Cross-border gas pipelines were built to interconnect Argentina, Chile, Brazil and Uruguay, and producers such as us are currently exporting natural 

gas to the Chilean and Brazilian markets, to the extent permitted by the Argentine government. During the last several years the Argentine authorities 
have adopted a number of measures restricting exports of natural gas from Argentina, including issuing domestic supply instruction pursuant to 
Resolutions Nos. 659 and 752 (which require exporters to supply natural gas to the Argentine domestic market), issuing express instructions to suspend 
exports, suspending processing of natural gas and adopting restrictions on natural gas exports imposed through transportation companies and/or 
emergency committees created to address crisis situations. See “―Market Regulation―Natural gas export restrictions and domestic supply 
preferences.” 

Transportation of Liquid Hydrocarbons 

The Hydrocarbons Law permits the executive branch of the Argentine government to award 35-year concessions for the transportation of oil, gas 

and petroleum products following submission of competitive bids. Pursuant to Law No. 26,197, the relevant provincial governments have the same 
powers. Holders of production concessions are entitled to receive a transportation concession for the oil, gas and petroleum products that they produce. 
The term of a transportation concession may be extended for an additional ten-year term upon application to the executive branch. The holder of a 
transportation concession has the right to: 

•    transport oil, gas and petroleum products; and 

•    construct and operate oil, gas and products pipelines, storage facilities, pump stations, compressor plants, roads, railways and other facilities 

and equipment necessary for the efficient operation of a pipeline system.

The holder of a transportation concession is obligated to transport hydrocarbons for third parties on a non-discriminatory basis for a fee. This 
obligation, however, applies to producers of oil or gas only to the extent that the concession holder has surplus capacity available and is expressly 
subordinated to the transportation requirements of the holder of the concession. Transportation tariffs are subject to approval by the Secretariat of Energy 
for oil and petroleum pipelines and by the Argentine natural gas regulatory authority ENARGAS (Ente Nacional Regulador del Gas) for gas pipelines. 
Upon expiration of a transportation concession, the pipelines and related facilities automatically revert to the Argentine government without payment to 
the holder. The Privatization Law granted us a 35-year transportation concession with respect to the pipelines operated by Yacimientos Petrolíferos 
Fiscales S.A. at the time. Gas pipelines and distribution systems sold in connection with the privatization of Gas del Estado are subject to a different 
regime under the Natural Gas Law. 

Additionally, pursuant to Law No. 26,197, all transportation concessions located entirely within a province’s jurisdiction and not directly connected 

to any export pipeline are to be transferred to such province. The executive branch retains the power to regulate and enforce all transportation 
concessions located within two or more provinces and all transportation concessions directly connected to export pipelines. 

Refining 

Crude oil refining activities conducted by oil producers or others are subject to the prior registration of oil companies in the registry maintained by 

the Secretariat of Energy and compliance with safety and environmental regulations, as well as to provincial environmental legislation and municipal 
health and safety inspections. In January 2008, the Secretariat of Domestic Commerce issued Resolution No. 14/2008, whereby the refining companies 
were instructed to optimize their production in order to obtain maximum volumes according to their capacity. 

Market Regulation 

Overview 

Under the Hydrocarbons Law and the Oil Deregulation Decrees, holders of production concessions, such as us, have the right to produce and own 

the oil and gas they extract and are allowed to dispose of such production in the domestic or export markets, in each case subject to the conditions 
described below. 

The Hydrocarbons Law authorizes the executive branch of the Argentine government to regulate the Argentine oil and gas markets and prohibits 

the export of crude oil during any period in which the executive branch finds  

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domestic production to be insufficient to satisfy domestic demand. If the executive branch restricts the export of  crude oil and petroleum products or the 
free disposition of natural gas, the Oil Deregulation Decrees provide that producers, refiners and exporters shall receive a price: 

•    in the case of crude oil and petroleum products, not lower than that of imported crude oil and petroleum products of similar quality; and

•    in the case of natural gas, not less than 35% of the international price per cubic meter of Arabian light oil, 34° API. 

Furthermore, the Oil Deregulation Decrees expressly required the executive branch to give twelve months’ notice of any future export restrictions. 

Notwithstanding the above provisions, certain subsequently-enacted Resolutions (Resolution S.E. 1679/04, Resolution S.E. 532/04 and Resolution of the 
Ministry of Economy and Production 394/07) have modified the aforementioned price mechanism, resulting, in certain cases, in prices to producers 
below the levels described above. 

Refined products 

In April 2002, the Argentine government and the main oil companies, including us, reached an agreement on a subsidy provided by the Argentine 

government to public bus transportation companies. The Agreement on Stability of Supply of Diesel Fuel (Convenio de Estabilidad de Suministro de 
Gas Oil) was approved by Executive Decree No. 652/02 and assured the transportation companies their necessary supply of diesel fuel at a fixed price of 
Ps.0.75 per liter from April 22, 2002 to July 31, 2002. Additionally, it established that the oil companies are to be compensated for the difference 
between the fixed price and the market price through export duty credits. This agreement was extended through August 31, 2002. Through new price-
stabilization agreements, the subsidy was extended through June 30, 2005 and the fixed price was increased up to Ps.0.82 per liter. After June 25, 2005, 
the price paid by transporters was reduced to Ps.0.42 for local public transportation and to Ps.0.62 for the rest of public transportation. On November 11, 
2007, the price paid by transporters was increased to Ps.0.45 per liter, and on January 11, 2008, it was increased to Ps.0.50 per liter, the price for the rest 
of public transportation remaining at Ps.0.62. In March 2008, Executive Decree No. 449/2008 empowered the Chief of Cabinet to sign annual 
agreements extending the diesel fuel subsidy to transportation companies for the fiscal year 2008 and instructed such official to incorporate the necessary 
modifications in order to extend the possibility to compensate with export duty credits on all hydrocarbon products currently exported and in defect 
thereof, in cash. As of the date of this annual report, such annual agreement for the fiscal year 2008 is under negotiation. 

The Secretariat of Energy has issued a series of resolutions affecting the fuel market. For example, Resolution S.E. No. 1,102/04 created the 
Registry of Liquid Fuels Supply Points, Self Consumption, Storage, Distributors and Bulk Sellers of Fuels and Hydrocarbons, and of Compressed 
Natural Gas; Resolution S.E. No. 1,104/04 created a bulk sales price information module as an integral part of the federal fuel information system, as 
well as a mechanism for communication of volumes sold by fuel manufacturers and by sellers; Resolution S.E. No. 1,834/05 compels service stations 
and/or supply point operators and/or self consumption of liquid fuels and hydrocarbons who have requested supply, and have not been supplied, to 
communicate such situation to the Secretariat of Energy; and Resolution S.E. No. 1,879/05 established that refining companies registered by the 
Secretariat of Energy, who are parties to contracts that create any degree of exclusivity between the refining company and the fuel seller, shall assure 
continuous, reliable, regular and non-discriminatory supply to its counterparties, giving the right to the seller to obtain the product from a different 
source, and thereupon, charging any applicable overcosts to the refining company. 

Disposition S.S.C. No. 157/06 of the Undersecretariat of Fuels provides that fuel sellers who are parties to contracts that create any degree of 

exclusivity between the refining company and the fuel seller, and which for any reason are seeking to terminate such contract, shall report the 
termination in advance with the Undersecretariat of Fuels in order to inform the Secretary of Domestic Commerce of the situation. In that case, the 
Secretary of Domestic Commerce is to: (i) issue a statement regarding the validity of the termination of the contract and (ii) use all necessary means to 
allow the fuel seller terminating the contract to execute another agreement with a refining company and/or fuel broker in order to guarantee its fuel 
supply. 

Resolution S.E. No. 1,679/04 reinstalled the registry of diesel fuel and crude oil export transactions created by Executive Decree No. 645/2002, and 
mandated that producers, sellers, refining companies and any other market agent that wishes to export diesel fuel or crude oil to register such transaction 
and to demonstrate that domestic demand has been satisfied and that they have offered the product to be exported to the domestic market. In addition,  

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Resolution S.E. No. 1338/06 added other petroleum products to the registration regime created by Executive Decree No. 645/2002, including gasoline, 
fuel oil and its derivatives, aviation fuel, coke coal, asphalts, certain petrochemicals and certain lubricants. Resolution No. 715/2007 of the Secretariat of 
Energy empowered the National Refining and Marketing Director to determine the amounts of diesel fuel to be imported by each company, in specific 
periods of the year, to compensate exports of products included under the regime of Resolution No. 1679/04; the fulfillment of this obligation to import 
diesel fuel is necessary to obtain authorization to export the products included under Decree No. 645/2002 (crude, fuel oil, diesel fuel, coke coal and 
gasoline, among others). In addition, Resolution No. 25/06 of the Secretariat of Domestic Commerce, issued within the framework of Law No. 20, 680, 
imposes on each Argentine refining company the obligation to supply all reasonable diesel fuel demand, by supplying certain minimum volumes 
(established pursuant to the resolution) to their usual customers, mainly service station operators and distributors. 

Resolution SE No. 459/07, of July 12, 2007, created the “Energy Substitution Program,” which is intended to mitigate gas and electricity shortages. 
This program encourages industrial users to substitute natural gas and electricity use with diesel, fuel oil and LPG. The Argentine government allocated 
approximately U.S.$310 million in 2007 in subsidies to fund the gap between the price of natural gas and electricity on the one hand, and the price of the 
substitute fuel on the other hand. 

Resolution SE No. 121/2008 extended until December 31, 2008 the Energy Substitution Program and Rule No. 30/2008, issued by the Sub-
secretary of Coordination and Control on April 1, 2008, approved the following general plans for implementation of the Energy Substitution Program: 

1) General Plan for the Supply of Gaseous Fuels, including: 

(i) a plan for the supply of regasified liquefied natural gas (LNG), which provides for the construction, maintenance, management and 
administration of a system for the regasification of LNG and the supply of natural gas to the Argentine market, and empowers ENARSA, directly 
or through third parties, to take all necessary actions, including the purchase of the LNG, for such purpose; and 

(ii) a plan for the supply of propane, which provides for the management of a system to acquire and deliver propane to be injected into the natural 
gas distribution network of the province of Buenos Aires, and empowers ENARSA, directly or through third parties, to take all necessary actions, 
including the purchase of propane, for such purpose. 

2) General Plan for the Supply Liquid Fuels, including: 

(i) a plan designed to guarantee that demand for liquid fuel in the Argentine market is met. For such purpose, ENARSA, directly or through third 
parties, is empowered to buy and sell liquid fuels. 

(ii) a plan to encourage and subsidize replacement of natural gas and/or electric power consumption with the use of alternative fuels in productive 
activities. ENARSA, directly or through third parties, is empowered to manage the mechanisms for the supply of liquid fuels to replace the 
natural gas. 

Natural gas 

In January 2004, Executive Decree No. 180/04 (i) created the Mercado Electrónico del Gas (MEG) for the trade of daily spot sales of gas and a 
secondary market of transportation and distribution services and (ii) established information duties for buyers and sellers of natural gas in relation to 
their respective commercial operations, required as a condition to be authorized to inject into and transport through the transportation system any volume 
of natural gas (further regulated by Resolution No. 1,146/04 issued on November 9, 2004 and Resolution No. 882/05 issued by the Secretariat of 
Energy). According to Executive Decree No. 180/04, all daily spot sales of natural gas must be traded within the MEG. 

In January 2004, Executive Decree No. 181/04 authorized the Secretariat of Energy to negotiate with natural gas producers a pricing mechanism for 
natural gas supplied to industries and electric generation companies. On April 2, 2004, the Secretariat of Energy and gas producers signed an agreement 
which was ratified by Resolution  

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No. 208/04 issued by the Ministry of Federal Planning, Public Investment and Services. The aim of the agreement was to implement a scheme for the 
normalization of natural gas prices following the 2001 crisis. The main aspects of the agreement were: (i) initial price adjustments applied exclusively to 
gas supplied by producers to industrial users, new direct consumers and electricity generators (to the extent that electricity was destined for the domestic 
market); (ii) prices were adjusted as of May 10, 2004; and (iii) the Secretariat of Energy would implement a progressive scheme for the normalization of 
the price of natural gas destined to residential end-users and small commercial users, which was never implemented. This agreement expired on 
December 31, 2006. 

On June 14, 2007, Resolution No. 599/07 of the Secretariat of Energy approved a proposal of agreement with natural gas producers regarding the 

supply of natural gas to the domestic market during the period 2007 through 2011 (the “Propuesta de Acuerdo,” or “Agreement 2007-2011”), giving 
such producers a five-business-day term to enter into the Agreement 2007-2011. If within that term, the Agreement 2007-2011 was not executed by a 
sufficient number of producers to make it viable, the Secretariat of Energy would disregard the Agreement and enact the Procedures for Complementary 
Supply of the Internal Market 2007-2011 (Procedimientos de Abastecimiento Complementario al Mercado Interno 2007-2011) (not described in 
Resolution No. 599/07). We executed the agreement taking into account that natural gas exports and certain domestic sales of producers that do not enter 
into the Agreement 2007-2011 are to be called upon first in order to satisfy domestic demand, before the export sales of the producers that have signed 
the Agreement 2007-2011 are affected. While producers are authorized to withdraw from the Agreement 2007-2011 under its terms, if they do so such 
producers will be treated as any producer that has not entered into the Agreement 2007-2011 in the first place. 

The purpose of the Agreement 2007-2011 is to guarantee the supply of the domestic market demand at the levels registered in 2006, plus the growth 

in demand by residential and small commercial customers (the “agreed demand levels”). Producers that have entered into the Agreement 2007-2011 
would commit to supply a part of the agreed demand levels according to certain shares determined for each producer based upon its share of production 
for the 36 months prior to April 2004. For this period, our share of production was approximately 36.5%, or 36.8 mmcm/d (or 1,300 mmcf/d), which in 
2007 represented approximately 72% of our production and was sold at an average price of U.S.$1.52 per mmBtu (or approximately U.S.$55 per cubic 
meter). The Agreement 2007-2011 also provides guidelines for the terms of supply agreements for each market segment, and certain pricing limitations 
for each market segment of the agreed demand levels. In order to guarantee any domestic market demand of natural gas in excess of the agreed demand 
levels, Resolution S.E. No. 599/07 maintains the effectiveness of the Resolutions that implemented the curtailment of natural gas export commitments 
and the re-routing of such natural gas volumes to certain sectors of the domestic market. See “―Natural gas export restrictions and domestic supply 
priorities.” The Resolution also states that the Agreement 2007-2011 does not prevent the possible suspension or termination of export permits. 

We were compelled to execute the Agreement 2007-2011, among other reasons, in order to mitigate our potential damages. Producers failing to 
sign the Agreement 2007-2011 could be penalized and subject to other unfavorable measures by regulatory authorities. However, we expressly stated 
that the execution of the Agreement 2007-2011 did not entail any recognition by us of the validity of the terms and conditions of the various Resolutions 
of the Secretariat of Energy establishing programs for the curtailment or re-routing of exports to satisfy domestic demand. We challenged Resolution No. 
599/07 and stated that we signed the Agreement 2007-2011 taking into account the potential consequences of not doing so. While the challenge is 
pending, we are complying with the terms of the Agreement. 

The Argentine Secretariat of Energy, by its Resolution S.E. No. 459/07 of July 12, 2007, created the “Energy Substitution Program,” which was 

designed to mitigate shortages of gas and electricity during the Argentine winter of 2007. The program encouraged industrial users to substitute natural 
gas and electricity use with diesel, fuel oil and LPG. In connection with the program, the Argentine government allocated approximately U.S.$310 
million to compensate for the higher cost of the substitute fuels.  

The Argentine Secretariat created, by its Resolution No. 24/2008 issued on March 13, 2008, a program named “GAS PLUS” to encourage natural 
gas production resulting from new reserves discoveries, new fields and tight gas, among other factors. The natural gas produced under the GAS PLUS 
program will not be subject to Agreement 2007-2011 and will not be subject to the price conditions established under such Agreement. 

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Natural gas export restrictions and domestic supply priorities 

In March 2004, the Secretariat of Energy issued Resolution S.E. No. 265/04 adopting measures intended to ensure the adequate supply of natural 

gas to the domestic market and regulate its consequences on electricity wholesale prices. Among the measures adopted were: 

•    the suspension of all exports of surpluses of natural gas;

•    the suspension of automatic approvals of requests to export natural gas;

•    the suspension of all applications for new authorizations to export natural gas filed or to be filed before the Secretariat of Energy; and

•    authorizing the Undersecretariat of Fuels to create a rationalization plan of gas exports and transportation capacity. 

In March 2004, the Undersecretariat of Fuels, pursuant to the authority given to it under Resolution S.E. No. 265/04, issued Regulation S.S.C. No. 

27/04 establishing a rationalization plan of gas exports and transportation capacity. Among other things, Regulation No. 27/04 established a limit on 
natural gas export authorizations, which, absent an express authorization by the Undersecretariat of Fuels, may not be executed for volumes exceeding 
exports registered during 2003. 

In June 2004, the Secretariat of Energy issued Resolution S.E. No. 659/04, which established a new program to assure natural gas supply to the 
domestic market (which substitutes for the program created by Regulation No. S.S.C. 27/04). Under Resolution S.E. No. 659/04 (amended by Resolution 
S.E. No. 1,681/04), natural gas exports may be restricted due to shortages of natural gas in the domestic market, because exporting producers may be 
required to supply additional volumes of natural gas to the domestic market beyond those that they are contractually committed to supply. The export of 
natural gas under current export permits is conditioned on the fulfillment of additional supply requirements imposed on exporting producers by 
governmental authorities. 

This program was further amended and supplemented by Resolution S.E. No. 752/05 issued by the Secretariat of Energy in May 2005, which 

further reduced the ability of producers to export natural gas, and created a mechanism under which the Secretariat of Energy may require exporting 
producers to supply additional volumes to domestic consumers during a seasonal period (Permanent Additional Supply), which volumes of natural gas 
are also not committed by the exporting producers. Based on the provisions of Rule No. 27/04, Resolution S.E. No. 659/04 and Resolution S.E. No. 
752/05, the Secretariat of Energy and/or the Undersecretariat of Fuels have instructed us to re-direct natural gas export volumes to the internal market, 
thereby affecting natural gas export commitments. We have challenged the validity of the aforementioned regulations and resolutions, and has invoked 
the occurrence of a force majeure event under the corresponding natural gas export purchase and sale agreements. The counterparties to such agreements 
have rejected our position. See “Item 8. Financial Information―Legal Proceedings.” 

Resolution S.E. No. 752/05 also establishes (i) a special market, open and anonymous, for compressed natural gas stations to purchase natural gas 
under regulated commercial conditions, with the demand being ensured by the Secretariat of Energy through Permanent Additional Supply required of 
exporting producers, and (ii) a mechanism of standardized irrevocable offers for electric power generators and industrial and commercial consumers to 
obtain supply of natural gas, with the demand being ensured by the Secretariat of Energy through the issuance of the Permanent Additional Supply 
mentioned above. 

Pursuant to the standardized irrevocable offers procedure mentioned above, which operates at the MEG, any direct consumer may bid for a term gas 

purchase at the export average gas price net of withholdings by basin. The volume necessary to satisfy the standardized irrevocable offers which have 
not been satisfied will be required as a Permanent Additional Supply only until the end of the seasonal period during which the unsatisfied requests 
should be made (October–April or May–September). Such Additional Supply will be requested from the producers that export gas and that inject the 
natural gas from the basins that are able to supply those unsatisfied irrevocable offers. Resolution of the Secretariat of Energy S.E. No. 1886/2006, 
published on January 4, 2007, extended the term of  

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effectiveness of this mechanism of standardized irrevocable offers until 2016, and empowered the Undersecretariat of Fuels to suspend its effectiveness 
subject to the satisfaction of internal demand of natural gas achieved by means of regulations, agreements or due to the discovery of reserves. 

By means of Resolution S.E. No. 1329/06, later supplemented by Note SSC No. 1011/07, the Secretariat of Energy forced producers to give first 

priority in their injections of natural gas into the gas pipelines to certain preferential consumers and obligates transportation companies to guarantee 
these priorities through the allocation of transportation capacity. In general, these regulations subordinate all exports of natural gas to the prior delivery 
of natural gas volumes that are sufficient to satisfy domestic market demand. 

Also, beginning during the severe Argentine winter in 2007 and continuing thereafter, we and most of gas producers as well as the transportation 
companies received instructions from the government to cut off all exports to zero, except for certain volumes addressed to satisfy Chilean residential 
consumptions and other specific consumptions. 

Liquefied petroleum gas 

Law No. 26,020 enacted on March 9, 2005 sets forth the regulatory framework for the industry and commercialization of LPG. This law regulates 
the activities of production, bottling, transportation, storage, distribution, and commercialization of LPG in Argentina and declares such activities to be 
of public interest. Among other things, the law: 

•    creates the registry of LPG bottlers, obliging LPG bottlers to register the bottles of their property;

•    protects the trademarks of LPG bottlers; 

•    creates a reference price system, pursuant to which, the Secretariat of Energy shall periodically publish reference prices for LPG sold in bottles 

of 45 kilograms or less; 

•    required the Secretariat of Energy to comply with the following tasks: (i) create LPG transfer mechanisms, in order to guarantee access to the 
product to all the agents of the supply chain; (ii) establish mechanisms for the stabilization of LPG prices charged to local LPG bottlers; and 
(iii) together with the Antitrust Agency, make an analysis of the composition of the LPG market and its behavior, in order to establish 
limitations on the concentration of the market in each phase, or limitations to the vertical integration throughout the chain of the LPG industry. 
Such limitations must include affiliates, subsidiaries and controlled companies; and

•    grants open access to LPG storage facilities. 

The Secretariat of Energy established, through several subsequent resolutions, reference prices applicable to sales of LPG bottles of less than 45 
kilograms, and to sales of bulk LPG exclusively to LPG bottlers. Also, the Secretariat of Energy approved the method for calculating the LPG export 
parity to be updated monthly by the Undersecretariat of Fuels. The Secretariat of Energy in 2007 increased the LPG volumes to be sold to bottlers at the 
reference prices set forth in the above-mentioned resolutions. 

Rule 168/04 requires companies intending to export LPG to first obtain an authorization from the Secretariat of Energy. Companies seeking to 

export LPG must first demonstrate that the local demand is satisfied or that an offer to sell LPG to local demand has been made and rejected. 

Argentine Environmental Regulations 

The enactment of Articles 41 and 43 in the National Constitution, as amended in 1994, as well as new federal, provincial and municipal legislation, 

has strengthened the legal framework dealing with damage to the environment. Legislative and government agencies have become more vigilant in 
enforcing the laws and regulations regarding the environment, increasing sanctions for environmental violations. 

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Under the amended Articles 41 and 43 of the National Constitution, all Argentine inhabitants have both the right to an undamaged environment and 

a duty to protect it. The primary obligation of any person held liable for environmental damage is to rectify such damage according to and within the 
scope of applicable law. The federal government sets forth the minimum standards for the protection of the environment and the provinces and 
municipalities establish specific standards and implementing regulations. 

Federal, provincial and municipal laws and regulations relating to environmental quality in Argentina affect our operations. These laws and 
regulations set standards for certain aspects of environmental quality, provide for penalties and other liabilities for the violation of such standards, and 
establish remedial obligations in certain circumstances. 

In general, we are subject to the requirements of the following federal environmental regulations (including the regulations issued thereunder): 

•    National Constitution (Articles 41 and 43); 

•    Law No. 25,675 on National Environmental Policy;

•    Law No. 25,612 on Integrated Management of Industrial and Service Industry Waste;

•    Law No. 24,051 on Hazardous Waste; 

•    Law No. 20,284 on Clean Air; 

•    Law No. 25,688 on Environmental Management of Waters;

•    Law No. 25,670 on the Management and Elimination of Polychlorinated Biphenyls;

•    Criminal Code; and 

•    Civil Code, which sets forth the general rules of tort law.

These laws address environmental issues, including limits on the discharge of waste associated with oil and gas operations, investigation and 
cleanup of hazardous substances, workplace safety and health, natural resource damages claims and toxic tort liabilities. Furthermore, these laws 
typically require compliance with associated regulations and permits and provide for the imposition of penalties in case of non-compliance. 

In addition, we are subject to various other provincial and municipal regulations, including those relating to gas venting, oil spills and well 

abandonment, among other matters. 

By Resolution No. 404/94, the Secretariat of Energy amended Resolution No. 419/93, and created the Registry of Independent Professionals and 

Safety Auditing Companies (Registro de Profesionales Independientes y Empresas Auditoras de Seguridad), which may act with respect to areas of 
hydrocarbons storage, oil refineries, gas stations, fuel commercialization plants and plants for fractionation of LPG in containers or cylinders. The 
Resolution provides that external audits of oil refineries, gas stations and all fuel storage plants must be carried out by professionals registered in the 
Registry. Domestic fuel manufacturing companies and companies that sell fuels are prohibited from supplying these products to any station failing to 
comply with its obligations. Penalties for failure to perform the audits and remedial or safety tasks include the disqualification of plants or gas stations. 
In addition, a set of obligations is established in relation to underground fuel storage systems, including a mechanism for instant notification in cases of 
loss or suspicion of loss from the storage facilities. 

On July 19, 2001, the Secretariat of Environmental Policy of the province of Buenos Aires issued Resolution No. 1037/01 ordering us to clean up 

certain areas adjacent to the La Plata refinery. The resolution was appealed through an administrative procedure which has not yet been resolved. 
Nevertheless, we have commenced certain works in order to identify potential technical solutions for the treatment of the historical contamination, while 
reserving that the remediation must be made by the parties responsible for the environmental damage. Under current  

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law, the Argentine government has the obligation to indemnify us against any liability and hold us harmless for events and claims arising prior to 
January 1, 1991, according to Law No. 22,145. 

During 2005, the Secretariat of Energy, by means of Resolution No. 785/05, created the National Program of Hydrocarbons Warehousing Aerial 
Tank Loss Control, a measure aimed at reducing and correcting environmental pollution caused by hydrocarbons warehousing-aerial tanks. We have 
commenced the development and implementation of a technical and environmental audit plan as required by this Resolution. 

The above description of the material Argentine environmental regulations is only a summary and does not purport to be a comprehensive 

description of the Argentine environmental regulatory framework. The summary is based upon Argentine regulations related to environmental issues as 
in effect on the date of this annual report, and such regulations are subject to change. 

U.S. Environmental Regulations 

In addition, federal, state and local laws and regulations relating to health, safety and environmental quality in the United States, where YPF 
Holdings Inc. (“YPF Holdings”) operates, affect the operations of this subsidiary. YPF Holdings’ U.S. operations, conducted primarily through Maxus 
Energy Corporation (“Maxus”), are subject to the requirements of the following U.S. environmental laws: 

•    Safe Drinking Water Act; 

•    Clean Water Act; 

•    Oil Pollution Act; 

•    Clean Air Act; 

•    Resource Conservation and Recovery Act; 

•    National Environmental Policy Act; 

•    Occupational Safety and Health Act; 

•    Comprehensive Environmental Response, Compensation and Liability Act; and

•    various other federal, state and local laws. 

These laws and regulations set various standards for many aspects of health, safety and environmental quality (including limits on discharges 
associated with oil and gas operations), provide for fines and criminal penalties and other consequences (including limits on operations and loss of 
applicable permits) for the violation of such standards, establish procedures affecting siting of facilities and other operations, and in certain 
circumstances impose obligations concerning reporting, investigation and remediation, as well as liability for natural resource damages and toxic tort 
claims. 

Taxation 

Holders of exploration permits and production concessions are subject to federal, provincial and municipal taxes and regular customs duties on 
imports. The Hydrocarbons Law grants such holders a legal guarantee against new taxes and certain tax increases at the provincial and municipal levels. 

Pursuant to Sections 57 and 58 of the Federal Hydrocarbons Law, holders of exploration permits and production concessions must pay an annual 
surface fee that is based on acreage of each block and which varies depending on the phase of the operation, i.e., exploration or production, and in the 
case of the former, depending on the relevant period of the exploration permit. On October 17, 2007, the Official Gazette published Executive Decree 
No. 1,454/07, which significantly increased the amount of exploration and production surface fees expressed in  

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Argentine pesos that are payable to the different jurisdictions where the hydrocarbon fields are located. See “—Exploration and Production.” 

In addition, “net profit” (as defined in the Hydrocarbons Law) of holders of permits or concessions accruing from activity as such holders might be 
subject to the application of a special 55% income tax. This tax has never been applied. Each permit or concession granted to an entity other than us has 
provided that the holder thereof is subject instead to the general Argentine tax regime, and a decree of the executive branch of the Argentine government 
provides that we are also subject to the general Argentine tax regime. 

Following the introduction of market prices for downstream petroleum products in connection with the deregulation of the petroleum industry, Law 
No. 23,966 established a volume-based tax on transfers of certain types of fuel, replacing the prior regime, which was based on the regulated price. Law 
No. 25,745, modified, effective as of August 2003, the mechanism for calculating the tax, replacing the old fixed value per liter according to the type of 
fuel for a percentage to apply to the sales price, maintaining the old fixed value as the minimum tax. 

Dividends distributed by us to our shareholders, regardless of their country of residence, are exempt from income tax in Argentina. However, 
dividends distributed in excess of the accumulated earnings, determined according to the provisions of the Argentine Income Tax Law by the end of the 
fiscal year prior to the year when the dividends are distributed, shall be subject to a 35% tax on such excess. The tax must be withheld by the distributing 
company. 

Holding of our shares by individuals resident in Argentina or abroad and corporations, any type of legal entity, enterprise, permanent establishment, 

estate or resident abroad shall be subject to personal assets tax on the holdings by December 31st every year. The tax basis shall be the percentage net 
equity of each shareholder, and the tax rate is 0.5%. We shall act as a substitute obligor and pay the tax. It shall be entitled to recover the amount paid 
even withholding and/or foreclosing the assets that generated the tax liability. 

Export taxes 

In 2002, the Argentine government began to impose customs duties on the export of hydrocarbons. Export tax rates were increased on crude oil 
20%, on butane, methane and LPG to 20% and gasoline and diesel fuel to 5%. In May 2004, Resolution No. 337/04 of the Ministry of Economy and 
Production increased export duties on crude oil to 25%. These export tax rates were increased again in 2004, when the Ministry of Economy and 
Production issued Resolution No. 532/04, establishing a progressive scheme of export duties for crude oil, with rates ranging from 25% to 45%, 
depending on the quotation of the WTI reference price at the time of the exportation. In addition, in May 2004, pursuant to Resolution No. 645/04 of the 
Ministry of Economy and Production, an export duty on natural gas and natural gas liquids was established at a rate of 20%. The export duty on natural 
gas was increased again in July 2006, when the Ministry of Economy and Production increased the rate to 45% and instructed the Customs General 
Administration to apply the price fixed by the Framework Agreement between Argentina and Bolivia (approximately U.S.$6/mmBtu in December 2007) 
as the base price to which to apply the new tax rate, irrespective of the actual sales price. In addition, on October 10, 2006, the Ministry of Economy and 
Production imposed prevalent export duties on exports from the Tierra del Fuego province, which were previously exempted from taxes. Moreover, in 
May 2007 the Ministry of Economy and Production increased to 25% the export duty on butane, propane and LPG. There can be no assurances as to 
future levels of export taxes. 

Resolution No. 394/07 of the Ministry of Economy and Production, effective as of November 16, 2007, increased export duties on Argentine oil 

exports (as defined by the regulator) on crude oil and other crude derivatives products. The new regime provides that when the international price 
exceeds the reference price, which is fixed at U.S.$60.9/barrel, the producer shall be allowed to collect U.S.$42/barrel, with the remainder being 
withheld by the Argentine government as an export tax. If the international price of Argentine oil exports (as defined by the regulator) is under the 
reference price but over U.S.$45/barrel, a 45% withholding rate will apply. If such price is under U.S.$45/barrel, the applicable export tax is to be 
determined within 90 business days. 

Resolution No. 127/2008 of the Ministry of Economy and Production increased export duties applicable to natural gas exports from 45% to 100%, 

mandating a valuation basis for the calculation of the duty as the highest  

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price established in any contract of any Argentine importer for the import of gas (including the reference price set by the Framework Agreement between 
Argentina and Bolivia mentioned above). Resolution No. 127/2008 provides with respect to LPG products (including butane, propane and blends 
thereof) that if the international price of the relevant LPG product, as notified daily by the Secretariat of Energy, is under the reference price established 
for such product in the Resolution (U.S.$338/m3 for propane, U.S.$393/m3 for butane and U.S.$363/m3 for blends of the two), the applicable export 
duty for such product will be 45%. If the international price exceeds the reference price, the producer shall be allowed to collect the maximum amount 
established by the Resolution for the relevant product (U.S.$223/m3 for propane, U.S.$271/m3 for butane and U.S.$250/m3 for blends of the two), with 
the remainder being withheld by the Argentine government as an export tax. 

In addition, the calculation procedure described above also applies to other petroleum products and lubricants based upon different withholding 

rates, reference prices and prices allowed to producers. See “—Market Regulation.” 

Antitrust Agreement 

On June 16, 1999, the Argentine Ministry of Economy and Public Works delivered a letter to Repsol YPF setting forth a series of obligations that 

Repsol YPF was required to assume after the acquisition of the majority of our share capital. 

Repsol YPF met all of the requirements upon execution of the asset swap agreement entered into with Petrobras in December 2001. 

Repsol YPF believes that the acquisition of YPF will not be subject to further antitrust scrutiny in Argentina under existing law. However, the 
Ministry has not stated that there will be no further antitrust scrutiny and no assurances can be given that Repsol YPF will not be required to accept 
additional undertakings or other measures intended to address any perceived anti-competitive effects of the YPF acquisition. 

Repatriation of Foreign Currency 

Executive Decree No. 1,589/89, relating to the deregulation of the upstream oil industry, allows us and other companies engaged in oil and gas 
production activities in Argentina to freely sell and dispose of the hydrocarbons they produce. Additionally, under Decree No. 1,589/89, we and other oil 
producers are entitled to keep out of Argentina up to 70% of foreign currency proceeds they receive from crude oil and gas export sales, but are required 
to repatriate the remaining 30% through the exchange markets of Argentina. 

In July 2002, Argentina’s Attorney General issued an opinion (Dictamen No. 235) which would have effectively required us to liquidate 100% of 
our export receivables in Argentina, instead of the 30% provided in Decree No. 1,589/89. The Attorney General’s opinion was based on the assumption 
that Decree No. 1,589/89 had been superseded by other decrees (Decree No. 530/91 and 1,606/01) issued by the government. Subsequent to this opinion, 
however, the government issued Decree No. 1,912/02 ordering the Central Bank to apply the 70%/30% regime set out in Decree No. 1,589/89. 
Nevertheless, on December 5, 2002, representatives of the Central Bank of Argentina, responding formally to an inquiry from the Argentine Bankers 
Association, stated that the Central Bank would apply the Attorney General’s opinion. On December 9, 2002, we filed a declaratory judgment action 
(acción declarativa de certeza) before a federal court requesting the judge to clarify the uncertainty generated by the opinion and statements of the 
Attorney General and the Central Bank of Argentina, and requesting confirmation of our right to freely dispose of up to 70% of our export receivables. 
On December 9, 2002, the federal judge issued an injunction ordering the Argentine government, the Central Bank and the Ministry of the Economy to 
refrain from interfering with our access to and use of 70% of the foreign exchange proceeds from our exports. This decision was appealed by the Central 
Bank and the Ministry of Economy and Production. 

On December 27, 2002, the government issued Decree No. 2,703/02, effective as of January 1, 2003, setting forth a minimum repatriation limit of 

30% with respect to proceeds from the export of hydrocarbons and byproducts, with the remaining portion freely disposable. However, when referring to 
the minimum repatriation limit of 30%, the decree only mentions the foreign exchange proceeds from freely disposable exports of crude oil and its  

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byproducts. Although the recitals and the first part of Section 1 of Decree No. 2,703/02 mention natural gas and LPG as covered by this regime, there are 
no express references to natural gas or LPG in the rest of Section 1. However, taking into account the rights granted by Decree No. 1,589/89, we apply 
this regime to the export of crude oil, LPG and natural gas. It is worth noting that the recitals of Decree No. 2,703/02 restate the interpretation 
maintained by the Attorney General in the sense that Decree No. 1,589/89 has been repealed by Decree No. 530/91 and No. 1,606/01. This interpretation 
prompted the filing of the above-mentioned declaratory judgment action. Moreover, since Decree No. 2,703/02 is effective as from January 1, 2003, and, 
in light of the Attorney General’s opinion, it is unclear whether hydrocarbon exporters would be required to repatriate the total amount of their 2002 
export proceeds or whether the existing hydrocarbons regulatory framework will prevail, we have expanded the object of the declaratory judgment 
action before the federal court to request that the judge expressly state that Decree No. 530/91 did not abrogate Decree No. 1,589/89 and, thus, that the 
right of free disposal of export receivables was effective between the issuance of Decree No. 1,606/01 and Decree 2,703/02. On December 1, 2003, the 
National Administrative Court of Appeals decided that the issuance of Decree No. 2,703/02, which allows companies in the oil and gas sector to keep 
abroad up to 70% of the export proceeds, rendered the injunction unnecessary. On December 15, 2003, we filed a motion for clarification asking the 
court to clarify whether the exemption was available to oil and gas companies during the period between the issuance of Decree No. 1,606/01 and the 
issuance of Decree 2,703/02. On February 6, 2004, the Court of Appeals dismissed our motion for clarification, indicating that the regulations included 
in Decree 2,703/02 were sufficiently clear, and confirmed the lifting of the injunction that prohibited the Central Bank and the Ministry of Economy and 
Production from interfering with our access to foreign exchange proceeds, as described above. On February 19, 2004, we filed an extraordinary appeal 
before the Supreme Court challenging the December 1, 2003 decision of the Court of Appeals and requesting the restatement of the injunction against 
the Central Bank and the Ministry of Economy and Production. The Federal Court of Appeals dismissed the extraordinary appeal. Taking into account 
the fact that there is a new special system in place allowing for the free disposal of up to 70% of the foreign currency proceeds from the exports of crude 
oil and its derivatives, it was deemed advisable to abandon the suit as a procedural strategy. 

On October 12, 2007, we were notified of the initiation of an administrative summary proceeding for alleged late repatriation of foreign currency 
proceeds, and lack of repatriation of the remaining 70%, in connection with some hydrocarbon export transactions made in 2002. In this administrative 
summary proceeding, charges were brought against us in the amount of U.S.$1.6 million, and the tribunal has advised that the conduct of a bank that 
handled other of our export transactions made in 2002 be investigated, which could give rise to the initiation of further proceedings. Nevertheless, a 
judicial judgment recently issued by a First Instance Court in Criminal Economic Matters in a similar administrative summary proceeding against a 
different company for an alleged violation of the criminal exchange law (lack of repatriation of 70% of foreign currency proceeds) regarding export 
transactions made in 2002 resolved the matter in favor of that company based on legal arguments that were not challenged by the prosecutor. See “Item 
8. Financial Information—Legal Proceedings—Argentina.” 

ITEM 4A. Unresolved Staff Comments. 

We do not have any unresolved staff comments. 

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ITEM 5. Operating and Financial Review and Prospects 

The following discussion should be read in conjunction with, and is qualified in its entirety by reference to, our audited consolidated financial 

statements as of December 31, 2007, 2006 and 2005 and for the years then ended (the “Audited Consolidated Financial Statements”). 

Overview 

We are Argentina’s leading energy company, operating a fully integrated oil and gas chain with leading market positions across the domestic 
upstream and downstream segments. Our upstream operations consist of the exploration, development and production of crude oil, natural gas and 
liquefied petroleum gas. Our downstream operations include the refining, marketing, transportation and distribution of oil and a wide range of petroleum 
products, petroleum derivatives, petrochemicals, liquid petroleum gas and bio-fuels. Additionally, we are active in the gas separation and natural gas 
distribution sectors both directly and through our investments in several affiliated companies. In 2007, we had consolidated net sales of Ps.29,104 
million (U.S.$9,239 million) and consolidated net income of Ps.4,086 million (U.S.$1,297 million). 

Most of our predecessors were state-owned companies with operations dating back to the 1920s. In November 1992, the Argentine government 
enacted the Privatization Law (Law No. 24,145), which established the procedures for our privatization. In accordance with the Privatization Law, in 
July 1993, we completed a worldwide offering of 160 million Class D shares that had previously been owned by the Argentine government. As a result 
of that offering and other transactions, the Argentine government’s ownership interest in our capital stock was reduced from 100% to approximately 
20% by the end of 1993. 

Since 1999, we have been controlled by Repsol YPF, an integrated oil and gas company headquartered in Spain with global operations. Repsol YPF 

owned approximately 99% of our capital stock from 2000 until February 21, 2008, when Petersen Energía purchased 58,603,606 of our ADSs, 
representing 14.9% of our capital stock, from Repsol YPF for U.S.$2,235 million. In addition, Repsol YPF also granted certain affiliates of Petersen 
Energía options to purchase up to an additional 10.1% of our outstanding capital stock within four years. See “Item 7. Major Shareholders and Related 
Party Transactions.”  We believe that Petersen Energía’s participation in our capital stock and management will strengthen our Argentine ties and 
expertise. 

Upstream Operations 

•    We operate more than 70 oil and gas fields in Argentina, accounting for approximately 42% of the country’s total production of crude oil, 

excluding natural gas liquids, and approximately 42% of its total natural gas production, including natural gas liquids, in 2007, according to 
the Argentine Secretariat of Energy. 

•    We had proved reserves, as estimated as of December 31, 2007, of approximately 623 mmbbl of oil and 3,708 bcf of gas, representing 

aggregate reserves of 1,283 mmboe. 

•    In 2007, we produced 120 mmbbl of oil (329 mbbl/d) and 635 bcf of gas (1,740 mmcf/d).

Downstream Operations 

•    We are Argentina’s leading refiner with operations conducted at three wholly owned refineries with combined annual refining capacity of 

approximately 116 mmbbl (319.5 mbbl/d). We also have a 50% interest in Refinor, a jointly controlled entity operated by Petrobras Energía 
S.A., which has a refining capacity of 26.1 mbbl/d.

•    Our retail distribution network for automotive petroleum products as of December 31, 2007 consisted of 1,692 YPF-branded service stations, 

which we believe represented approximately 31.1% of all service stations in Argentina.

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•    We are a leading petrochemical producer in Argentina and in the Southern Cone of Latin America, with operations conducted through our 

Ensenada plant. In addition, Profertil, a company that we jointly control, is a leading producer of urea in the Southern Cone.

Presentation of Financial Information 

We prepare our audited consolidated financial statements in accordance with Argentine GAAP, which differ in certain significant respects from 

U.S. GAAP. Notes 13, 14 and 15 to the Audited Consolidated Financial Statements provide a summary of the effect of these significant differences on 
net income and shareholders’ equity under Argentine GAAP and U.S. GAAP.  

We fully consolidate the results of subsidiaries in which we have a sufficient number of voting shares to control corporate decisions and 

proportionally consolidate the results of companies that we control jointly. The financial information corresponding to Refinor and Profertil, both jointly 
controlled entities, includes the last financial information approved by those companies, which in each case corresponds to a date and period ending 
three months prior to the date of our consolidated financial statements; however, such information, if material, is adjusted according to applicable 
accounting principles to reflect these companies’ results as of the date of the issuance of our consolidated financial statements. 

Under Argentine GAAP, we currently are not required to record the effects of inflation in our financial statements. However, because Argentina 

experienced a high rate of inflation in 2002, with the wholesale price index increasing by approximately 118%, we were required by Decree No. 
1269/2002 and CNV Resolution No. 415/2002 to remeasure our financial statements in constant pesos in accordance with Argentine GAAP. On March 
25, 2003, Decree No. 664/2003 rescinded the requirement that financial statements be prepared in constant currency, effective for financial periods on or 
after March 1, 2003. According to the Argentine statistics and census agency (Instituto Nacional de Estadísticas y Censos, or “INDEC”), the wholesale 
price index increased 7.9% in 2004, 10.6% in 2005, 7.1% in 2006 and 14.4% in 2007. As a result, our results of operations and financial position may 
not be directly comparable from period to period. We cannot assure you that in the future we will not be again required to record the effects of inflation 
in our financial statements (including those covered by the financial statements included in this annual report) in constant pesos, which may affect the 
comparability of our results of operations and financial position to those recorded in prior periods. See “—Critical Accounting Policies—U.S. GAAP 
Reconciliation” for an explanation of how the effect of inflation is treated under U.S. GAAP. 

Additionally, certain oil and gas disclosures are included in this annual report under the heading “Supplemental information on oil and gas 

producing activities (unaudited).” 

Segment Reporting 

We organize our business into the following four segments: (i) exploration and production, which includes exploration and production activities, 

natural gas and crude oil purchases, sales of natural gas, and to a lesser extent crude oil, to third parties and intersegment sales of crude oil, natural gas 
and its byproducts and to a lesser extent electric power generation (“Exploration and Production”); (ii) the production, transport and marketing of crude 
oil that we sell to third parties and of refined products that we sell to third parties and other segments of our business (“Refining and Marketing”); (iii) 
the production, transport and marketing of petrochemical products (“Chemical”); and (iv) other activities not falling into the previously described 
categories (“Corporate and Other”), principally including corporate administration costs and assets, construction activities and environmental 
remediation activities related to YPF Holdings Inc. 

Sales between business segments are made at internal transfer prices established by us, which generally seek to approximate market prices. 

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For the Year
Ended December 31,
2006 

2007 

2005

29,104 
(19,000)   
10,104 

(805)   
(2,120)   
(522)   
6,657 
34 
(439)   
518 
5 
69     

6,844 
(2,758)    
4,086     

25,635
(15,821)
9,814
(674)
(1,797)
(460)
6,883
183
(204)
454
11
(69)  

7,258
(2,801)  
4,457   

22,901
(11,258)
11,643
(552)
(1,650)
(280)
9,161
39
(545)
102
15
— 
8,772
(3,410)
5,362 

Summarized Income Statement 

Net sales 
Cost of sales 
Gross profit 
Administrative expenses 
Selling expenses 
Exploration expenses 
Operating income 
Income on long-term investments 
Other expenses, net 
Financial income, net and holding gains 
Income from sale of long-term investments 
Impairment of other assets 
Net income before income tax 
Income tax 
Net income 

Factors Affecting Our Operations 

Our operations are affected by a number of factors, including: 

•    the volume of crude oil, oil byproducts and natural gas we produce and sell;

•    domestic price limitations; 

•    export restrictions and domestic supply requirements;

•    international prices of crude oil and oil products; 

•    our capital expenditures; 

•    inflation and cost increases; 

•    domestic market demand for hydrocarbon products;

•    operational risks; 

•    taxes, including export taxes; 

•    capital controls; 

•    the Argentine peso/U.S. dollar exchange rate; 

•    dependence on the infrastructure and logistics network used to deliver our products;

•    laws and regulations affecting our operations; and

•    interest rates. 

Our consolidated operating profits and margins have recently trended downwards. This has principally been the result of: production declines and 
increased asset depreciation principally due to the increasing maturity of our oil and gas fields; increases in other operating costs, due in part to higher 
domestic demand and local market supply  

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obligations (which required us to purchase certain hydrocarbon inputs from third parties); inflation and higher labor costs; and limitations on our ability 
to offset those increased costs due to, among other things, domestic limitations on the prices at which we sell gas and refined products. 

Our operating income in 2007 decreased 3.3% compared with 2006 mainly as a result of: our continuing decline in production, principally as a 

result of the maturity of our fields; increased export taxes; increased depreciation of fixed assets as a result of increased assets subject to depreciation 
(principally exploration and production assets that entered into production) and also considering the decline in our proved reserves and increasing 
domestic fuel demand, which, as a result of regulatory requirements, obliged us to decrease exports and import certain products (such as diesel) in order 
to satisfy domestic demand at substantially lower prices. Domestic prices for diesel, for example, in January 2008, were approximately U.S.$250/cubic 
meter lower, after tax refunds, than international market prices, ensuring a loss on diesel imports that are used to satisfy domestic diesel demand. 

Our operating income in 2006 decreased 24.9% compared to 2005 mainly as a result of: our decline in production, which led us to purchase more 

crude oil from third parties in order to maintain our pace of refining activity; increased depreciation of fixed assets resulting from declines in our proved 
reserves; the imposition of higher export taxes on most refined products; significant increases in imports of diesel at international market prices in order 
to satisfy domestic demand at substantially lower prices; and limitations on the prices at which we sell gas and refined products in the domestic market. 

Macroeconomic conditions 

The Argentine economy has experienced significant volatility in recent decades, characterized by periods of low or negative growth and high 

variable levels of inflation. Inflation reached its peak in the late 1980s and early 1990s. The annual inflation rate as measured by the consumer price 
index was approximately 388% in 1988, 4,924% in 1989 and 1,344% in 1990. Due to inflationary pressures prior to the 1990s, the Argentine currency 
was devalued repeatedly and macroeconomic instability led to broad fluctuations in the real exchange rate of the Argentine currency relative to the U.S. 
dollar. To address these pressures, past Argentine governments implemented various plans and utilized a number of exchange rate systems. 

With the enactment of the Convertibility Law in 1991, inflation declined progressively and the Argentine economy enjoyed seven years of growth. 
In the fourth quarter of 1998, adverse international financial conditions caused the Argentine economy to enter into a recession and GDP to decrease in 
real terms by 3.4% in 1999, 0.8% in 2000 and 4.4% in 2001. By the end of 2001, Argentina suffered a profound deterioration in social and economic 
conditions, accompanied by high political and economic instability. The restrictions on the withdrawal of bank deposits, the imposition of exchange 
controls, the suspension of the payment of Argentina’s public debt and the abrogation of the peso’s one-to-one peg to the dollar (with the consequent 
depreciation of the peso against the dollar) caused a decline in economic activity. Real GDP declined by 10.9% in 2002, annual inflation rose to 41%, 
the exchange rate continued to be highly volatile, and the unemployment rate rose to more than 20%. The political and economic instability not only 
curtailed commercial and financial activities in Argentina but also severely restricted the country’s access to international financing. 

Strong economic growth in the world’s developed economies and favorable raw material pricing from 2003 through 2007 paved the way for 
Argentina’s economic recovery. Real GDP grew by 8.7% in 2003, 9.0% in 2004, 9.2% in 2005, 8.5% in 2006 and 8.7%, based on preliminary data, in 
2007. Public finances both at national and provincial levels recorded a consolidated primary surplus of approximately 5.5% of GDP in 2004, 4.5% in 
2005, 3.5% in 2006 and 3.2%, based on preliminary data, in 2007. Argentina has also maintained a trade surplus, which from 2003 to 2007 averaged 
approximately 7% of GDP. 

The annual wholesale price index, according to the INDEC, increased by 2% in 2003, 7.9% in 2004, 10.6% in 2005, 7.1% in 2006 and 14.4% in 
2007. According to a recent report published by the International Monetary Fund, however, most private sector analysts believe that actual inflation is 
considerably higher than reflected in official data. The government’s main strategy to fight increasing inflation has been the establishment of agreed 
price controls with private companies. 

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With its economic recovery well under way, in 2005, Argentina successfully completed the restructuring of a substantial portion of its bond 
indebtedness and cancelled all of its debt with the International Monetary Fund (“IMF”). The country is actively working to renegotiate the remaining 
portion of its external public debt and to resolve the claims brought before international courts by foreign companies affected during the crisis. 

Global macroeconomic conditions have a direct effect on economic conditions in Argentina and, in particular, on Argentine domestic energy 
consumption trends. Global economic growth remained solid during the first half of 2007, but the downside risks and uncertainty surrounding growth 
prospects have recently increased. Latin America continued to expand vigorously, driven by strong commodity prices and growing domestic demand. 
However, there are some signs that the improved fundamentals may erode if certain regulatory policies are not strengthened. Fiscal and external 
surpluses are forecast to weaken in many countries, and inflation has been rising, exacerbated by rising international food prices, as output has come 
closer to potential. 

According to the IMF, world output is expected to expand by 4.8% in 2008. The global economy is being supported by the expansion in emerging 

market countries. In particular, the economies of the leading emerging Asian countries, China and India, are expected to grow by approximately 10% 
and 8.5%, respectively, in 2008. United States growth is projected at 1.9% in 2008, reflecting the continuing housing correction and the negative impact 
on confidence of the recent financial turmoil. The rate of expansion is expected to slow to 2.1% and 1.7% in the euro area and Japan, respectively. The 
U.S. dollar has continued to depreciate against the euro and a broad range of other currencies, including those of emerging market countries. The 
exchange market pressures in emerging economies have generally been reflected in exchange rate appreciation, rapid accumulation of international 
reserves and strong domestic credit growth. 

Worldwide oil prices continued to increase during 2007 and 2008 to date, reaching over U.S.$110 per barrel (WTI) in April 2008, driven by strong 

demand, the decrease in the United States’ reserves, the decrease in the value of the U.S. dollar, and social and political conflicts in producing areas. 

Within the above-mentioned international and regional context, the economic growth rate of Argentina remained strong during 2007. Preliminary 

data show that real GDP increased 8.7% compared with 2006, driven by fixed investment and private consumption. 

Total exports from Argentina increased by 20% year over year (YoY) to U.S.$55,933 million in 2007, mainly driven by an increase in exports of 

agricultural products, while imports increased by 31% in the same period due to higher growth in consumption and investment. The trade surplus 
decreased by 9.4%, falling from U.S.$12,306 million in 2006 to U.S.$11,154 million in 2007. 

The unemployment rate continued to fall, consistent with economic growth. The data corresponding to the fourth quarter of 2007 showed that 7.5% 
of the active population was unemployed, 1.2 percentage points lower than the 8.7% rate in the prior year. Average real wages of the economy increased 
by 13% (YoY) between December 2006 and December 2007, according to the INDEC’s inflation rate based on the consumer price index (8.5%). 

The Central Bank continued its policy of accumulating international reserves and maintaining a competitive exchange rate during 2007. Central 
Bank reserves were at U.S.$46 billion at the end of the year, and the peso/dollar buying exchange rate increased to Ps.3.15 per dollar, a 2.9% (YoY) 
nominal depreciation. The real exchange rate of the Argentine peso against a basket of currencies, measured using the INDEC'S inflation rate based on 
the consumer price index showed a 10% real depreciation throughout the year. 

Government fiscal revenues increased by 33% (YoY) in 2007 and extraordinary revenues of Ps.7,814 million were generated as a result of pension 
reform, but an even higher rise in public expenditures (46%) led to a reduction in the national primary fiscal surplus from 3.5% of GDP in 2006 to 3.2% 
of GDP, based on preliminary data, in 2007. In relation to public debt, two issues are still pending: (i) a portion of the defaulted debt that was not 
included in the 2005 debt swap (the so-called “Paris Club”) has not yet been resolved and (ii) certain government bondholders have not accepted the 
government’s debt restructuring proposal. 

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The Argentine economy has begun 2008 with favorable prospects in terms of economic growth, but with concerns over inflation, energy supply and 

the international economic context in the near future. However, we cannot predict the evolution of future macroeconomic events, or the effect that they 
are likely to have on our business, financial condition and results of operations. See “Item 3. Key Information—Risk Factors—Risks Relating to 
Argentina.” 

Energy consumption in Argentina has increased significantly since 2003, driven in part by price limitations that have kept Argentine energy prices 

substantially below international prices. Continued growth in demand and a particularly harsh winter in 2007 have recently led to fuel shortages and 
power outages, prompting the Argentine government to take additional measures to assure domestic supply. At the same time, growth in the production 
of certain hydrocarbon products has slowed, and in the case of crude oil production has recently declined, due to Argentina’s maturing oil and gas fields. 
As a result of this increasing demand and actions taken by the Argentine regulatory authorities to prioritize domestic supply, exported volumes of 
hydrocarbon products, especially natural gas, declined steadily over this period. At the same time, Argentina has increased hydrocarbon imports. 

The table below shows Argentina’s total sales, production, exports and imports of crude oil, natural gas, diesel and gasoline products for the periods 

indicated. 

Crude Oil in Argentina 
Production (mmbbl) 
Exports (mmbbl) 
Imports (mmbbl) 

Natural Gas in Argentina 
Sales (mmcm)(1) 
Production (mmcm) 
Exports (mmcm) 
Imports (mmcm) 

Diesel in Argentina 
Sales (mcm)(2) 
Production (mcm) 
Exports (mcm) 
Imports (mcm) 

Gasoline in Argentina 
Sales (mcm)(2) 
Production (mcm) 
Exports (mcm) 
Imports (mcm) 
___________ 
(1) 

Includes total domestic market deliveries. 

(2) 

Includes domestic market sales. 

2007 

Year ended December 31,
2006 

2005

234.7     
20.8     
0.3     

240.7
32.0
0.6

38,532.0     
51,007.0     
1,245.0     
1,239.5     

36,362.0
51,779.0
2,487.0
1,428.5

14,754.9     
12,915.6     
46.6     
847.1     

13,903.4
12,570.3
108.8
446.9

5,285.6     
5,965.2     
1,400.9     
23.0     

4,608.4
5,889.3
1,732.0
33.2

243.0
54.6
1.6

34,685.0
51,573.0
6,600.1
1,610.5

13,074.4
11,673.4
276.4
678.7

4,028.6
6,043.1
2,955.2
14.1

Sources: Argentine Secretariat of Energy and Ente Nacional Regulador del Gas (ENARGAS)

Policy and regulatory developments in Argentina 

The Argentine oil and gas industry is currently subject to certain governmental policies and regulations that have resulted in: domestic prices that 
are substantially lower than prevailing international market prices; export restrictions; domestic supply requirements that oblige us from time to time to 
divert supplies from the export or industrial markets in order to meet domestic consumer demand; and increasingly higher export duties on the  

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volumes of hydrocarbons allowed to be exported. See “Item 4. Information on the Company—Regulatory Framework and Relationship with the 
Argentine Government.” These governmental pricing limitations, export controls and tax policies have been implemented in an effort to satisfy 
increasing domestic market demand at prices below international market prices. As discussed in “Item 3. Key Information—Risk Factors” and elsewhere 
in this annual report, actions by the Argentine government have had and will continue to have a significant effect on Argentine companies, including us. 

Policy and regulatory developments relating to the oil and gas industry in Argentina include, among others: 

•    Price limitations. In order to support economic growth, the Argentine government has sought to limit increases in hydrocarbons prices through 
a number of policies and measures. As a result, Argentina’s domestic hydrocarbon prices have not increased at the pace of international and 
regional prices, as described in “—Differences between Argentine and international prices for hydrocarbon products.” 

•    Export restrictions. Since 2004, the Argentine government has prioritized domestic demand and adopted policies and regulations restricting 
the export of certain hydrocarbon products. These restrictions have impacted our export sales as described in “—Declining export volumes.”

•    Export duties. Since the economic crisis in 2002, the Argentine government has imposed export taxes on certain hydrocarbon products. These 
taxes have increased substantially in the following years as international prices have surged. For a description of the most recent export duties 
on hydrocarbon exports, see “—International oil and gas prices and Argentine export taxes.”

•    Domestic supply requirements. The Argentine government has at times issued regulatory orders requiring producers to inject natural gas in 
excess of contractual commitments and supply other hydrocarbon products to the domestic market. As a result, we have had to limit our 
exports. In addition, we have imported diesel in order to satisfy domestic demand, which has increased our operating costs, as described in “—
Increasing cost of sales.” 

•    Energy Substitution Program. The Argentine Secretariat of Energy, by Resolution SE No. 459/07 of July 12, 2007, created the “Energy 

Substitution Program” (Programa de Energía Total), which is designed to mitigate shortages of natural gas and electricity by encouraging 
industrial users to substitute natural gas and electricity during the Argentine winter with imported diesel, fuel oil and LPG subsidized by the 
government. See “Item 4. Information on the Company—Regulatory Framework and Relationship with the Argentine Government—Market 
Regulation—Refined Products.” Under this program, we and other companies import diesel, fuel oil and LPG that we then sell to industrial 
users in Argentina at the prevailing domestic natural gas prices, with the difference refunded to us by the Argentine government. As a result, 
this program has the effect of increasing our net sales and volumes sold, but is operating income-neutral since we do not earn any margin on 
products sold under this program. 

Declining export volumes 

The exported volumes of many of our hydrocarbon products have declined significantly in recent years, driven mainly by increasing domestic 
demand and export restrictions, as well as by declines in production. This shift from exports to domestic sales has impacted our results of operations as 
the prices for hydrocarbons in the domestic market have, due to price limitations, generally not kept pace with international and regional prices. 

The table below presents, for the periods indicated, the exported volumes of certain of our principal hydrocarbon products. 

Product 
Oil (mcm) 
Natural gas (mmcm) 

81

2007 

Year Ended
December 31,
2006 
(units sold)

2005

425     
1,358     

874
3,090

1,776
3,071

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
Product 
Diesel (mcm) 
Gasoline (mcm) 
Fuel oil (mtn) 
Petrochemicals (mtn) 

2007 

Year Ended
December 31,
2006 
(units sold)

133     
1,272     
1,187     
689     

149
1,695
903
700

2005

327
2,385
696
749

Due to the decreased export product volumes indicated above and increasing export duties, the portion of our net sales accounted for by exports 

decreased steadily between 2005 and  2007. Exports accounted for  28.9%, 33.7% and 37.7% of our consolidated net sales in 2007, 2006 and 2005, 
respectively. 

The Argentine government’s current policy is not to allow any exports of natural gas other than to the residential sector in certain other countries. In 
addition, the Argentine government requires companies intending to export crude oil, diesel and LPG to obtain prior authorization from the Secretariat of 
Energy by demonstrating that local demand for those products has been satisfied. Since 2005, because domestic diesel production has generally not been 
sufficient to satisfy Argentine consumption needs, exports of diesel have been substantially restricted. 

International oil and gas prices and Argentine export taxes 

Since the economic crisis in 2002, in order to prioritize domestic demand, the Argentine government has imposed export taxes on certain 
hydrocarbon products. These taxes have increased substantially in the following years as international prices have surged. For a description of these 
taxes, see “Item 4. Information on the Company—Regulatory Framework and Relationship with the Argentine Government—Taxation.”  These export 
taxes have significantly affected the profitability of hydrocarbon exportation. They have also contributed to a shift away from exports and towards 
domestic sales, as described in “—Declining export volumes,” and reduced the export parity prices. 

The average export sales price per barrel of oil realized by us from Argentina was U.S.$51.67 in 2007, U.S.$53.11 in 2006 and U.S.$41.31 in 2005. 

The average export price per barrel of WTI was U.S.$72.23, U.S.$66.18 and U.S.$56.58 in 2007, 2006 and 2005, respectively. 

On November 16, 2007, the Ministry of Economy and Production published Resolution 394/07, modifying the duties on exports of crude oil and 

other crude oil derivative products. The new regime provides that when the WTI international price exceeds the reference price, which is fixed at 
U.S.$60.9/barrel, the producer shall be allowed to collect U.S.$42/barrel, with the remainder being withheld by the Argentine government as an export 
tax. If the WTI international price is under the reference price but over U.S.$45/barrel, a 45% withholding rate will apply. If such price is under 
U.S.$45/barrel, the applicable export tax is to be determined within a term of 90 business days. The withholding rate determined as indicated above also 
currently applies to diesel, gasoline and other crude derivative products. In addition, the calculation procedure described above also applies to other 
petroleum products and lubricants based upon different withholding rates, reference prices and prices allowed to producers. See “Item 4. Information on 
the Company—Regulatory Framework and Relationship with the Argentine Government—Market Regulation.” 

Resolution 534/06 of the Ministry of Economy and Production increased the tax on natural gas export sales to 45% and required the Customs 

General Administration to apply this tax rate to the price for natural gas set by the Framework Agreement between Argentina and Bolivia 
(approximately U.S.$6/mmBtu in December 2007), irrespective of the actual price of such natural gas export sales. Because we entered into certain long-
term natural gas supply contracts several years ago, our average natural gas export prices are generally substantially lower than the price set by the 
Framework Agreement between Argentina and Bolivia, although higher than the price at which we purchase gas from ENARSA (approximately U.S. 
$1.8/mmBtu in December 2007). 

In addition, in the first quarter of 2008, Resolution No. 127/2008 of the Ministry of Economy and Production increased export duties applicable to 

natural gas exports from 45% to 100%, mandating a valuation basis for the  

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calculation of the duty as the highest price established in any contract of any Argentine importer for the import of gas, abandoning the previously 
applicable reference price set by the Framework Agreement between Argentina and Bolivia mentioned above. Resolution No. 127/2008 provides with 
respect to LPG products (including butane, propane and blends thereof) that if the international price of the relevant LPG product, as notified daily by 
the Secretariat of Energy, is under the reference price established for such product in the Resolution (U.S.$338/m3 for propane, U.S.$393/m3 for butane 
and U.S.$363/m3 for blends of the two), the applicable export duty for such product will be 45%. If the international price exceeds the reference price, 
the producer shall be allowed to collect the maximum amount established by the Resolution for the relevant product (U.S.$223/m3 for propane, 
U.S.$271/m3 for butane and U.S.$250/m3 for blends of the two), with the remainder being withheld by the Argentine government as an export tax. 

Taxes for a number of other hydrocarbon products have also increased in recent months. See “Item 4. Information on the Company—Regulatory 

Framework and Relationship with the Argentine Government—Taxation.” 

Certain of these recent export tax increases were not yet in effect in 2007 or were not in effect during the entire year. As a result, the effects of these 

export taxes are not fully reflected in our financial information included in this annual report. While some parts of these Resolutions have yet to be 
definitively interpreted, we expect these recent export tax increases to continue to adversely affect our export net sales and margins in future financial 
periods, especially with respect to any exports of natural gas, diesel, gasoline and petrochemical products. We exported 1,358 mmcm of natural gas, 133 
mcm of diesel, 1,273 mcm of gasoline and 689 mtn of petrochemical products in 2007, and our exports accounted for 28.9% of our consolidated net 
sales in this period. 

Differences between Argentine and international prices for hydrocarbon products 

In recent years, domestic prices for our products have fallen significantly below international prices as a result of regulatory policies that have 
resulted in limitations on our ability to increase domestic prices sufficiently to keep pace with international market prices. The following table sets forth 
the average prices at which we sold our principal products in the domestic market (net of taxes passed through to consumers, such as value added and 
fuel transfer taxes) for the periods indicated: 

Natural gas(2)(3) 
Diesel(4)(5) 
Gasoline products(6) 

2007

Peso
171
1,060
978

(1)

U.S. $
54
337
310

For the Year Ended
December 31,

2006

Peso
156
862
887

(1)

U.S. $
51 
282 
291 

2005

Peso
127
839
879

(1)

U.S. $
44
289
302

____________ 
(1) 

Amounts translated from Argentine pesos at the average exchange rate for the period.

(2) 

(3) 

(4) 

(5) 

(6) 

Per thousand cubic meters. 

Reflects the average of residential prices (which are generally lower than prices to other segments) and industrial prices. 

Per cubic meter. Does not include sales by Refinor, in which we have a 50% interest and which is proportionally consolidated in our 
consolidated financial statements. 

Our average price for diesel in 2007 was positively affected by sales at import parity prices under the Energy Substitution Program. Such sales 
accounted for 59 mcm of our total of 8,352 mcm of diesel sold in the domestic market during this period. 

Per cubic meter. Does not include sales by Refinor, in which we have a 50% interest, and which is proportionally consolidated in our 
consolidated financial statements. The average price shown for each period is the volume-weighted average price of the various grades of 
gasoline products sold by us in the domestic market during such period.

The disparity between the prices at which hydrocarbon products are sold in Argentina and the prevailing international prices for such products has 

been mainly due to limitations on our ability to pass increases in international prices of crude oil and hydrocarbon fuels and adverse exchange rate 
movements through to domestic  

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prices or to increase local prices of natural gas (in particular for residential customers), gasoline and diesel. In a framework of increasing international 
prices, and notwithstanding our leading market position, domestic liquid fuel prices are still well below the level consistent with export/import parity 
prices. 

For example, in January 2008, diesel import prices were approximately U.S.$700/cubic meter, while the average domestic sales prices were 
approximately U.S.$350/cubic meter before government subsidies. In addition, the price at which Bolivia exports natural gas to Argentina (which is 
purchased by ENARSA) was approximately U.S.$6/mmBtu in December 2007 (approximately U.S.$6.98/mmBtu in March 2008), while the price at 
which we purchase natural gas from ENARSA was approximately U.S.$1.8/mmBtu and our average sales price for such gas in Argentina was 
approximately U.S.$2.29/mmBtu. 

In addition, pursuant to Resolution 599/2007 of the Secretariat of Energy dated June 14, 2007 (see “Item 4. Information on the Company—

Regulatory Framework and Relationship with the Argentine Government—Market Regulation—Natural gas”), the Argentine government and gas 
producers, including us, entered into an agreement for the supply of certain volumes of gas to each segment of the domestic market during the period 
2007 through 2011. Under this agreement, we have supplied a total volume of 2,674 million cubic meters of gas from August through December 2007 
(representing 34% of our total gas volume sales for the same period) to domestic residential and small commercial consumers at a price of approximately 
Ps.0.50/mmBtu for that period. 

Relative maturity of our oil and gas assets 

Argentina’s oil and gas fields are mature and, as a result, our reserves and production are declining as reserves are depleted. Because we mainly 
have concessions for mature oil and gas fields that are undergoing natural production declines, it is difficult to replace our proved reserves from other 
categories of reserves. In 2007, our estimated proved oil reserves and oil production declined by 8.38% and 4.76%, respectively, over the preceding year, 
while our estimated proved gas reserves and gas production declined by 7.65% and 2.46%, respectively, over the same period. As a result, in an effort to 
maintain our high refinery utilization rates and because of regulatory requirements to supply certain hydrocarbon products to the domestic market, we 
purchased crude oil and natural gas from third parties. In 2007 and 2006, our crude production, substantially all of which was destined to our refineries, 
represented approximately 83% and 90%, respectively, of the total crude oil processed by our refineries, and in 2007 and 2006, our natural gas 
production represented approximately 99% and 93%, respectively, of our total natural gas sales. We expect our oil and gas proved reserves and 
production rates to continue their decline. See “Item 4. Information on the Company—Exploration and Production—Reserves” for more information on 
our proved reserves. 

We are currently developing a plan to increase our recovery factors. This plan, known by its Spanish acronym “PLADA,” includes comprehensive 

reviews of each field, including its development strategy, to identify opportunities in the light of new technologies. We have also become increasingly 
active in exploratory offshore drilling projects, as well as onshore fields through extended reach wells to find gas. We have budgeted approximately 
U.S.$2 billion in total capital expenditures for 2008, a significant portion of which will be dedicated to our exploration and production activities. While 
our oil and gas reserves have recently declined, we increased our investment in recovery technology and exploration in 2007 and, based on our current 
expectations of increased prices, expect to continue to do so in the future, with the goal of improving our recovery factors. Many of our fields have 
characteristics similar to mature fields in other regions (including the United States) that have achieved substantially higher reserve recovery factors 
through the application of new technologies similar to those we are currently studying. We cannot assure you, however, that we will be able to improve 
our recovery factors. In addition, the financial viability of these investments and reserve recovery efforts generally will depend on the prevailing 
economic and regulatory conditions in Argentina. 

Increasing cost of sales 

Our cost of sales accounted for 65.3%, 61.7% and 49.2% of our consolidated net sales in 2007, 2006 and 2005, respectively. Our cost of sales 

increased significantly between 2005 and 2007, mainly as a result of: increased purchases of crude oil from third parties, driven by our efforts to 
maintain our high refinery utilization rates in light of our declining production; increased purchases of natural gas and diesel from third parties to fulfill 
our domestic  

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supply requirements and avoid penalties under certain delivery contracts; higher labor costs; higher costs related to the renegotiation of certain service 
contracts; and inflation. Due to prevailing Argentine price limitations, we were unable to pass many of these cost increases to our customers in the form 
of higher hydrocarbon product prices. 

Seasonality 

Historically, our results have been subject to seasonal fluctuations during the year, particularly as a result of greater natural gas sales during the 

winter. After the 2002 devaluation and as a consequence of the natural gas price freeze imposed by the Argentine government, the use of this fuel has 
diversified, generating an increase in its long-term demand throughout the year. However, sales of natural gas are still typically much higher in the 
winter to the residential sector of the Argentine domestic market, the prices for which are significantly lower than other sectors of the Argentine market. 

Critical Accounting Policies 

Our accounting policies are described in Notes 1 and 2 to the Audited Consolidated Financial Statements. Argentine GAAP requires us to make 

estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses and disclosures of contingent assets and 
liabilities in our financial statements. Actual results could differ from those estimates. We consider the following policies to be most critical in 
understanding the judgments that are involved in preparing our financial statements and the uncertainties that could impact our results of operations, 
financial condition and cash flows. 

Functional currency 

We have determined the U.S. dollar as our functional currency in accordance with the Statement of Financial Accounting Standards (“SFAS”) 52. 

For U.S. GAAP reconciliation purposes, financial statements are re-measured into U.S. dollars and the assets and liabilities are translated into Argentine 
pesos (“reporting currency”) at the exchange rate prevailing at year end and revenues, expenses, gains and losses are translated at the exchange rate 
existing at the time of each transaction, or, if appropriate, at a weighted average of the exchange rates during the year. 

In determining the functional currency, we make judgments based on the collective economic indicators affecting us. The economic indicators we 

review include the currency in which cash flows are denominated, how sales prices are determined, the sales markets in which we operate, how our 
operating costs are derived, how financing is obtained and the level of intra-group transactions with Repsol YPF, our controlling shareholder. A 
significant change in the facts and circumstances over the long-term relating to the collective economic indicators discussed above would result in our 
reassessing the functional currency. 

The determination of the functional currency to be applied to a business for accounting purposes is a decision that impacts, among other things, the 

reported results of operations, the exchange income or losses recorded and the translation differences arising from the conversion of its financial 
statements from the functional currency to the company’s reporting currency. 

Oil and gas reserves 

The estimation of oil and gas reserves is an integral part of the decision-making process about oil and gas assets, such as whether development 
should proceed or enhanced recovery methods should be implemented. As further explained below, oil and gas reserve quantities are used for calculating 
depreciation of the related oil and gas assets using the unit-of-production rates and also for evaluating the impairment of our investments in upstream 
assets. 

At YPF, all the assumptions made and the basis for the technical calculations used in the estimates regarding oil and gas proved reserves are based 

on the guides and definitions established by Rule 4-10(a) of Regulation S-X promulgated by the SEC. 

See “Item 4. Information on the Company—Exploration and Production—Reserves” for a detailed discussion on reserves estimates internal control 

and audits. 

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We follow the “successful effort” method of accounting for our oil and gas exploration and production operations. Accordingly, exploratory costs, 
excluding the costs of exploratory wells, have been charged to expense as incurred. Costs of drilling exploratory wells, including stratigraphic test wells, 
have been capitalized pending determination as to whether the wells have found proved reserves that justify commercial development. If such reserves 
were not found, the mentioned costs are charged to expenses. Occasionally, however, an exploratory well may be determined to have found oil and gas 
reserves, but classification of those reserves as proved cannot be made when drilling is completed. In those cases, the cost of drilling the exploratory well 
continues to be capitalized if the well has found a sufficient quantity of reserves to justify its completion as a producing well and the enterprise is making 
sufficient progress assessing the reserves and the economic and operating viability of the project. If any of the mentioned conditions are not met, the cost 
of drilling exploratory wells is charged to expenses. 

Intangible drilling costs applicable to productive wells and to developmental dry holes, as well as tangible equipment costs related to the 

development of oil and gas reserves, have been capitalized. 

The capitalized costs related to producing activities, including tangible and intangible costs, have been depreciated by field on the unit-of-

production basis by applying the ratio of produced oil and gas to estimated recoverable proved and developed oil and gas reserves. 

The capitalized costs related to acquisitions of properties with proved reserves have been depreciated by field on the unit-of-production basis by 

applying the ratio of produced oil and gas to proved oil and gas reserves. 

Revisions of crude oil and natural gas proved reserves are considered prospectively in calculating depreciation. 

Foreign unproved properties have been valued at costs translated as detailed in Note 1 to the Audited Consolidated Financial Statements. 
Capitalized costs related to unproved properties are reviewed periodically by management to ensure that their carrying value does not exceed their 
estimated recoverable value. 

Impairment of long-lived assets 

We assess the recoverability of our held-for-use assets on a business segment basis for Argentine GAAP purposes. With respect to operations that 

are held as pending sale or disposal, our policy is to record these assets at amounts that do not exceed net realizable value. 

For Argentine GAAP, held-for-use properties, grouped by business segment, are reviewed for impairment whenever events or changes in 
circumstances indicate that the carrying amounts may not be recoverable. An asset would be impaired if the discounted cash flows were less than its 
carrying value. 

The impairment of oil and gas producing properties is calculated as the difference between the market value or, if appropriate, the discounted 
estimated future cash flows from its proved reserves and unproved reserves, adjusted for risks related to such reserves, in each field owned at the year 
end with the net book value of the assets relating thereto. Expected future cash flows from the sale or production of reserves are calculated considering 
crude oil prices based on a combination of market forward quotes and standard long-term projections. The discounted values of cash flows are 
determined using a reasonable and supportable discount rate based on standard WACC-CAPM (weighted average cost of capital—capital asset pricing 
model) assumptions including, if appropriate, a risk premium related to this type of asset. The estimated cash flows are based on future levels of 
production, the future commodity prices, lifting and development costs, estimates of future expenditures necessary with respect to undeveloped oil and 
gas reserves, field decline rates, market demand and supply, economic regulatory conditions and other factors. 

The impairment of assets corresponding to our Refining and Marketing and Chemical business segments is calculated as the difference between the 

discounted estimated future cash flows from the use of those assets and the net book value of the assets related thereto. The discounted values of cash 
flows are determined using a discount rate we believe to be reasonable and supportable based on standard WACC-CAPM (weighted average cost of 
capital—capital asset pricing model) assumptions including, if appropriate, a risk premium related to the type of asset. The estimated cash flows are 
based on future levels of production, the future  

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estimated prices of our products and costs, other estimates of future expenditures, estimated useful life of the respective asset, market demand and 
supply, economic regulatory conditions and other factors for each business segment. 

Charges for impairment are recognized in our results from time to time as a result of, among other factors, adverse changes in the recoverable 
reserves from oil and natural gas fields, and changes in economic regulatory conditions. If proved reserves estimates were revised downward, net income 
could be negatively affected by higher impairment charges on the property’s book value. 

Therefore, our management must make reasonable and supportable assumptions and estimates with respect to: (i) the market value of reserves, (ii) 

oil fields’ production profiles and future production of refined and chemical products, (iii) future investments, taxes and costs, (iv) risk factors for 
unproved reserves which are measured based on the profile and potential of each specific exploration and production asset, (v) future capital 
expenditures and useful life for properties corresponding to our Refining and Marketing and Chemical business segments, and (vi) future prices, among 
other factors. As such, any change in the variables used to prepare such assumptions and estimates may have a significant effect on the impairment tests 
relating to investments in areas with oil and gas reserves. 

Impact of oil and gas reserves and prices on testing for impairment 

Proved oil and gas properties held and used by us are reviewed for impairment whenever events or circumstances indicate that the carrying amounts 

may not be recoverable. Impairments are measured by the amount by which the carrying value exceeds its fair value. 

We perform asset valuation analyses on an ongoing basis as a part of our asset management program. In general, we do not view temporarily low 
oil prices as a triggering event for conducting the impairment tests. Accordingly, any impairment tests that we perform make use of our long-term price 
assumptions for the crude oil and natural gas markets and petroleum products. 

Depreciation of oil and gas producing properties 

Volumes produced and asset costs are known, while proved reserves have a high probability of recoverability and are based on estimates that are 

subject to some variability. The impact of changes in estimated proved reserves is treated prospectively by depreciating the remaining book value of the 
assets over the future expected production, affecting the following year’s net income. In 2007, 2006 and 2005 we recorded depreciation of fixed assets 
associated with hydrocarbon reserves amounting to Ps. 3,564 million, Ps.3,223 million and Ps.2,180 million, respectively. 

Asset retirement obligations 

Future costs related to hydrocarbon wells abandonment obligations are capitalized along with the related assets, and are depreciated using the unit-
of-production method. As compensation, a liability is recognized for this concept at the same estimated value of the discounted payable amounts. Future 
estimated retirement obligations and removal costs are based on management’s best estimate of the time that the event will occur and the assertion of 
costs to be incurred upon the retirement or removal of the asset. Asset removal technologies and costs, as well as political, environmental, safety and 
other requirements and public expectations, are frequently changing. Consequently, the timing and future cost of dismantling and abandonment are 
subject to significant modification. As such, any change in variables used to prepare such assumptions and estimates can have, as a consequence, a 
significant effect on the liability and the related capitalized asset and future charges related to the retirement obligations. Future obligations are reviewed 
at the end of each fiscal year upon consideration of the current costs incurred in abandonment obligations on a field-by-field basis or other external 
available information if abandonment obligations were not performed. Due to the number of the wells in operation and/or not abandoned and the 
complexity with respect to different geographic areas where the wells are located, the current costs incurred in plugging are extrapolated to the wells 
pending abandonment. Management believes that current plugging costs incurred are the best source of information at the end of each fiscal year to 
estimate asset retirement obligations. 

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Environmental liabilities, litigation and other contingencies 

Environmental liabilities are recorded when environmental assessments and/or remediation are probable, material and can be reasonably estimated. 

Such estimates are based on either detailed feasibility studies of remediation approach and cost for individual sites, or on our estimate of costs to be 
incurred based on historical experience and available information for the stage of assessment and/or remediation of each site. As additional information 
becomes available regarding each site or as environmental standards change, we revise our estimate of costs to be incurred in environmental assessment 
and/or remediation. 

Reserves are established to cover litigation and other contingencies, including counsel fees and judicial expenses, which are probable and can be 
reasonably estimated. The final costs arising from litigation and other contingencies may vary from our estimates due to changes in laws or differing 
interpretations of laws, the issuance of court decisions or other opinions and final assessments on the amount of claims. Changes in the facts or 
circumstances related to these types of contingencies, as well as the future outcome of these disputes, can have, as a consequence, a significant effect on 
the reserves for litigation and other contingencies recorded. 

Reserves totaling Ps.2,319 million, Ps.1,952 million and Ps.1,561 million as of December 31, 2007, 2006 and 2005, respectively, have been 

established in connection with contingencies which were probable and could be reasonably estimated as of those dates. 

U.S. GAAP reconciliation 

The recurrent difference between our net income under Argentine GAAP and our net income under U.S. GAAP for the years ended December 31, 

2007, 2006 and 2005 is primarily due to the remeasurement into functional currency and translation into reporting currency, the elimination of the 
remeasurement into Argentine constant pesos, the effects of the reorganization of entities under common control, the impairment of long-lived assets, 
capitalization of financial expenses, accounting for assets retirement obligations, proportional consolidation of investments in jointly controlled 
companies, and the consolidation of variable interest entities. 

Under Argentine GAAP, financial statements are presented in constant Argentine pesos (“reporting currency”). Foreign currency transactions are 
recorded in Argentine pesos by applying to the foreign currency amount the exchange rate between the reporting and the foreign currency at the date of 
the transaction. Exchange rate differences arising on monetary items in foreign currency are recognized in the income statement of the period. 

Under U.S. GAAP, a definition of the functional currency is required which may differ from the reporting currency. Management has determined, 
for us and certain of our subsidiaries and investees, the U.S. dollar to be the functional currency in accordance with Statement of Financial Accounting 
Standards No.52 “Foreign Currency Translation” (“SFAS No. 52”). Therefore, we have re-measured into U.S. dollars the Audited Consolidated 
Financial Statements as of December 31, 2007, 2006 and 2005, in each case prepared in accordance with Argentine GAAP by applying the procedures 
specified in SFAS No. 52. The objective of the re-measurement process is to produce the same results that would have been reported if the accounting 
records had been kept in the functional currency. Accordingly, monetary assets and liabilities are re-measured at the balance sheet date (current) 
exchange rate. Amounts carried at prices in past transactions are re-measured at the exchange rates in effect when the transactions occurred. Revenues 
and expenses are re-measured on a monthly basis at the average rates of exchange in effect during the period, except for consumption of non-monetary 
assets, which are re-measured at the rates of exchange in effect when the respective assets were acquired. Translation gains and losses on monetary 
assets and liabilities arising from the re-measurement are included in the determination of net income (loss) in the period such gains and losses arise. For 
certain of our subsidiaries and investees, we have determined the Argentine peso as the functional currency. Translation adjustments resulting from the 
process of translating the financial statements of the mentioned subsidiaries into U.S. dollars are not included in determining net income and are reported 
in other comprehensive income, as a component of shareholders’ equity. 

The amounts obtained from the re-measurement process referred to above are translated into Argentine pesos under the provisions of SFAS No. 52. 

Assets and liabilities are translated at the current selling exchange rate of Ps.3.15, Ps.3.06 and Ps.3.03 to U.S.$1, as of December 31, 2007, 2006 and 
2005, respectively. Revenues, expenses,  

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gains and losses reported in the income statement are translated at the exchange rate existing at the time of each transaction or, if appropriate, at the 
weighted average of the exchange rates during the period. Translation effects of exchange rate changes are included as a cumulative translation 
adjustment in shareholders’ equity. For the years ended December 31, 2007, 2006 and 2005, the re-measurement into functional currency and the 
translation into reporting currency decreased net income determined according to Argentine GAAP by Ps.1,513 million, Ps.2,065 million and Ps.1,479 
million, respectively. 

Under Argentine GAAP, we have proportionally consolidated, net of intercompany transactions, assets, liabilities, net revenues, cost and expenses 

of investees in which joint control is held. Under U.S. GAAP, these investees are accounted for by the equity method. The proportional consolidation 
mentioned above generated an increase of Ps.486 million, Ps.446 million and Ps.381 million in total assets and total liabilities as of December 31, 2007, 
2006 and 2005, respectively, and an increase of Ps.1,350 million, Ps.1,451 million and Ps.1,216 million in net sales and Ps.690 million, Ps.774 million 
and Ps.681 million in operating income for the years ended December 31, 2007, 2006 and 2005, respectively. 

Under Argentine GAAP, in order to perform the recoverability test, long-lived assets are grouped with other assets at business segment level, and 
they would be impaired if the discounted cash flows, considered at business segment level, were less than its carrying value. With respect to assets that 
were held pending sale or disposal, our policy was to record these assets on an individual basis at amounts that did not exceed net realizable value. 

Under U.S. GAAP, for proved oil and gas properties, we perform the impairment review on an individual field basis. Other long-lived assets are 
aggregated, so that the individual cash flows produced by each group of assets may be separately analyzed. Each asset is tested following the guidelines 
of SFAS No. 144, “Accounting for the Impairment of Long-Lived Assets,” by comparing the net book value of such an asset with the expected cash 
flow. Impairment losses are measured as the amount by which the carrying amount of the assets exceeds the fair value of the assets. When fair values are 
not available, we estimate fair value using the expected future cash flows discounted at a rate commensurate with the risks associated with the recovery 
of the assets. The accumulated adjustments under U.S. GAAP of the impairment provisions as of December 31, 2007, 2006 and 2005 were Ps.554 
million, Ps.491 million and Ps.611 million, respectively, mainly corresponding to our Exploration and Production segment. Impairment charges under 
U.S. GAAP amounted to Ps.111  million, Ps.80 million and Ps.2 million for the years ended December 31, 2007, 2006 and 2005, respectively. In 2007, 
the impairment recorded was mainly the result of a decrease in oil and gas reserves affecting certain long-lived assets of our Exploration and Production 
business segment. In 2006, the impairment recorded was mainly the result of the downward revision in reserves made by us in December 2006, as well 
as to certain non-strategic Exploration and Production areas that were available for sale at that time, and accordingly were valued at fair value less cost 
to sell. The impairment recorded in 2005 was mainly the result of the downward revision in reserves made by us in December 2005. See “Item 4. 
Information on the Company—Exploration and Production.” The impairment reversal of Ps.69 million for the year ended December 31, 2007 and 
impairment charge of Ps.69 million for the year ended December 31, 2006 discussed in Note 2(c) to the Audited Consolidated Financial Statements were 
eliminated for U.S. GAAP purposes. 

The adjusted basis after impairment resulted in lower depreciation under U.S. GAAP Ps.132 million, Ps.137 million and Ps.170 million for the 

years ended December 31, 2007, 2006 and 2005, respectively. 

Under U.S. GAAP, only interest expense on qualifying assets must be capitalized, regardless of the asset’s construction period. Under Argentine 

GAAP, for those assets that necessarily take a substantial period of time to get ready for its intended use, borrowing costs (including interest and 
exchange differences) should be capitalized. 

SFAS No. 143, Accounting for Assets Retirement Obligations, requires that the fair value of a liability for an asset retirement obligation be 

recognized in the period in which it is incurred, if a reasonable estimate of fair value can be made. The asset retirement obligations liability is built up in 
cash flow layers, with each layer being discounted using the discount rate as of the date that the layer was created. Remeasurement of the entire 
obligation using current discount rates is not permitted. Each cash flow layer is added to the carrying amount of the associated asset. This additional 
carrying amount is then depreciated over the life of the asset. The liability is increased due to the passage of time based on the time value of money 
(“accretion expense”) until the obligation is settled. Argentine  

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GAAP is similar to SFAS No. 143, except a change in the discount rate is treated as a change in estimates, so the entire liability must be recalculated 
using the current discount rate, being the change added or reduced from the related asset. 

Under U.S. GAAP, results on reorganization of entities under common control are eliminated and related accounts receivables are considered as a 

capital (dividend) transaction. Under Argentine GAAP, results on reorganization of entities under common control and accounts receivables are 
recognized in the statement of income and the balance sheet, respectively. 

FIN No. 46R, Consolidation of Variable Interest Entities (“FIN 46R”), clarifies the application of Accounting Research Bulletin No. 51 to certain 

entities in which equity investors do not have the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to 
finance its activities without additional subordinated financial support from other parties. The interpretations explain how to identify variable interest 
entities and how an enterprise assesses its interests in a variable interest entity to decide whether to consolidate that entity. These interpretations require 
existing unconsolidated variable interest entities to be consolidated by their primary beneficiaries if the entities do not effectively disperse risks among 
parties involved. Under Argentine GAAP, consolidation is based on the control of corporate decisions through shareholding (Note 1 to the Audited 
Consolidated Financial Statements). 

As of December 31, 2007, we had operations with one variable interest entity (“VIE”), which has been created in order to structure our future 
deliveries of oil (“FOS”). Additionally, up to September 2005, we had operations with a VIE related to another FOS transaction, which was settled in 
advance. For a further description refer to “—Transactions with unconsolidated variable interest entities” below. 

The effects before taxes of such consolidation as of December 31, 2007, 2006 and 2005 were (i) an increase in loans by Ps.68 million, Ps.186 

million and Ps.297 million, respectively, (ii) an increase in current assets by Ps.24 million, Ps.19 million and Ps.18 million, respectively, (iii) the 
elimination of net advances from crude oil purchasers from balance sheets by Ps.9 million, Ps.103 million and Ps.196 million respectively, and (iv) a 
decrease in shareholders’ equity by Ps.35 million, Ps.65 million and Ps.83 million, respectively. 

YPF Holdings has non-contributory defined-benefit pension plans and postretirement and postemployment benefits. On December 31, 2006, under 

U.S. GAAP the Company adopted SFAS No. 158, “Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans—an 
amendment of FASB Statements No. 87, 88, 106, and 132 (R).” Under provisions of SFAS No. 158, the Company fully recognized the underfunded 
status of defined-benefit pension and postretirement plans as a liability in the financial statements, reducing the Company’s shareholders’ equity through 
the accumulated OCI account. Unrecognized gains and losses are recognized in the income statement during the expected average remaining working 
lives of the employees participating in the plans and the life expectancy of retired employees. Under Argentine GAAP, the benefits related to the plans 
were valued at net present value and accrued based on the years of active service of employees. The net liability for defined-benefits plans is the amount 
resulting from the sum of: the present value of the obligations, net of the fair value of the plan assets and net of the unrecognized actuarial losses 
generated since December 31, 2003. These unrecognized actuarial losses and gains are recognized in the statement of income during the expected 
average remaining working lives of the employees participating in the plans and the life expectancy of retired employees. Unrecognized actuarial losses 
are not considered in the amount of the net liability. For a more detailed discussion of the most significant differences between Argentine GAAP and 
U.S. GAAP, please refer to Notes 13, 14 and 15 to the Audited Consolidated Financial Statements. 

Principal Income Statement Line Items 

The following is a brief description of the principal line items of our income statement. 

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Net sales 

Net sales include primarily our consolidated sales of unrefined and refined fuel and chemical products net of the payment of applicable fuel transfer 

taxes, turnover taxes and custom duties on exports. Royalties with respect to our production are accounted for as a cost of production and are not 
deducted in determining net sales. 

Cost of sales 

The following table presents, for each of the years indicated, a breakdown of our consolidated cost of sales by category: 

2007 

For the Year Ended December 31,
2006 
(in millions of pesos)

2005

1,697     
6,637     
12,788     
451     
(2,573)    
19,000     

1,315
4,351
11,458
394
(1,697)  
15,821   

1,134
2,755
8,440
244
(1,315)
11,258 

Inventories at beginning of year 
Purchases for the period 
Production costs(1) 
Holding gains on inventories 
Inventories at end of period 
Cost of sales 
____________ 
(1) 

The table below presents, for each of the years indicated, a breakdown of our consolidated production costs by category: 

Salaries and social security taxes 
Fees and compensation for services 
Other personnel expenses 
Taxes, charges and contributions 
Royalties and easements 
Insurance 
Rental of real estate and equipment 
Depreciation of fixed assets 
Industrial inputs, consumable material and supplies 
Operation services and other service contracts 
Preservation, repair and maintenance 
Contractual commitments 
Transportation, products and charges 
Fuel, gas, energy and miscellaneous 
Total 

Other expenses, net 

2007 

For the Year Ended December 31,
2006 
(in millions of pesos)

2005

824     
174     
283     
226     
1,989     
106     
331     
3,989     
535     
535     
1,674     
596     
790     
736     
12,788     

649
114
215
191
2,095
102
258
3,598
485
566
1,329
519
622
715
11,458   

492
63
158
158
1,745
73
212
2,563
564
315
948
131
521
497
8,440 

Other expenses principally include reserves for pending lawsuits and other claims, provisions for environmental remediation and provisions for 

defined benefit pension plans and other post-retirement benefits. 

Finance income/(expense), net and holding gains 

Finance income/(expense), net and holding gains consist of the net of gains and losses on interest paid and interest earned, currency exchange 

differences and the periodic revaluation of inventories. 

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Taxes 

The statutory corporate income tax rate in Argentina was 35% during each of the periods presented in this annual report. Our effective tax rates for 
the periods discussed in this annual report exceed the Argentine corporate income tax rate mainly due to the non-deductibility of the amortization of the 
effect of inflation indexation on fixed assets, offset in part by income on non-consolidated long-term investments (which is included in our consolidated 
financial statements net of corporate income tax as payable by investees) and tax-free income from the sale of hydrocarbons produced in Tierra del 
Fuego. See Note 3(k) to the Audited Consolidated Financial Statements. 

Results of Operations 

Consolidated results of operations for the years ended December 31, 2007, 2006 and 2005 

The following table sets forth certain financial information as a percentage of net sales for the years indicated. 

Net sales 
Cost of sales 
Gross profit 
Administrative expenses 
Selling expenses 
Exploration expenses 
Operating income 

2007

Year Ended December 31,
2006 
(percentage of net sales)

2005

100.0%   
(65.3)    
34.7 
(2.8)
(7.3)
(1.8)    
22.9 

100.0%
(61.7)
38.3
(2.6)
(7.0)
(1.8)
26.9 

100.0%
(49.2)
50.8
(2.4)
(7.2)
(1.2)
40.0 

The tables below present, for the years indicated, volume and price data with respect to our consolidated sales of our principal products in the 

domestic and export markets, respectively. The data presented below does not include sales by Compañía Mega S.A. ("Mega"), Refinor or Profertil, 
jointly controlled companies in which we have 38%, 50% and 50% interests, respectively, and which are proportionally consolidated in our consolidated 
financial statements. Mega contributed, after consolidation adjustments, 1.6%, 1.6% and 1.6%, respectively, of our consolidated net sales for 2007, 2006 
and 2005. Refinor contributed, after consolidation adjustments, 1.5%, 2.0% and 1.9%, respectively, of our consolidated net sales for 2007, 2005 and 
2005. Profertil contributed, after consolidation adjustments, 1.5%, 2.1% and 1.8%, respectively, of our consolidated net sales for 2007, 2006 and 2005. 

Domestic Market 

Product 

Natural gas 
Diesel (2) 
Gasoline 
Fuel oil (3) 
Petrochemicals 
_________ 

2007 

Year Ended December 31,
2006

2005

Units 
sold 

16,771 mmcm   
8,352 mcm 
2,691 mcm 
910 mtn 
754 mtn 

Average
price 
per unit(1)
(in pesos)
        171/mcm
1,060/m3
    978/m3
    961/ton
  1,510/ton

Units 
sold

16,686 mmcm
7,757 mcm
2,246 mcm
458 mtn
606 mtn

Average
price 
per unit(1)
(in pesos)
    156/mcm
 862/m3
 887/m3
  939/ton
1,390/ton

Units 
sold 

17,609 mmcm 
6,959 mcm 
1,854 mcm 
283 mtn 
595 mtn 

Average
price 
per unit(1)
(in pesos)
     127/mcm
  839/m3
  879/m3
   817/ton
1,187/ton

(1)  Average prices shown are net of applicable domestic fuel transfer taxes payable by consumers.

(2)  Includes 59 mcm sold under the Energy Substitution Program in 2007.

(3)  Includes 220 mtn sold under the Energy Substitution Program in 2007.

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Export Markets 

Product 

Natural gas 
Diesel 
Gasoline 
Fuel oil 
Petrochemicals(2) 
__________ 
(1) 

2007 

Year Ended December 31,
2006

2005

Units 
sold 

     1,358 mmcm  
     133 mcm 
  1,273 mcm 
1,187 mtn 
  689 mtn 

Average
price 
per unit(1)
(in pesos)
354/mcm
1,883/m3
1,746/m3
1,175/ton
2,249/ton

Units 
sold

 3,090 mmcm
149 mcm
1,695 mcm
903 mtn
700 mtn

Average
price 
per unit(1)
(in pesos)
     280/mcm
1,686/m3
1,481/m3
  967/ton
2,010/ton

Units 
sold 

   3,071 mmcm 
  327 mcm 
2,385 mcm 
696 mtn 
749 mtn 

Average
price 
per unit(1)
(in pesos)
    196/mcm
1,321/m3
1,220/m3
   818/ton
1,497/ton

Average prices shown are gross of applicable export withholding taxes payable by us, and, as a result, may not be indicative of amounts recorded by us as net sales. 
See “—Factors Affecting Our Operations—International oil and gas prices and Argentine export taxes” for more information on the export tax withholding rates 
applicable to our principal products. 

(2)          Includes exports of refined paraffinic. 

Net sales 

Net sales in 2007 were Ps.29,104 million, representing a 13.5% increase compared to Ps.25,635 million in 2006. This increase was primarily 
attributable to greater sales volumes of diesel, gasoline, fuel oil and petrochemicals in the domestic market (which increased 7.7%, 19.8%, 98.7% and 
24.4%, respectively), as well as to significant increases in average domestic diesel, gasoline and fuel oil prices (which increased 23.0%, 10.3% and 
2.3%, respectively). As a result, our domestic sales increased 21.9% to Ps.20,704 million in 2007 from Ps.16,986 million in 2006. In addition, diesel and 
fuel oil sold under the Energy Substitution Program also contributed to the increase in sales. Export sales declined by 2.9% to Ps.8,400 million in 2007 
from Ps.8,649 million in 2006, driven by declines in the exported volumes of natural gas, gasoline and crude oil (which decreased 56.1%, 24.9% and 
51.4%, respectively), partially offset by an increase in international gasoline prices. Our export sales in both periods were made mainly to the United 
States, Brazil and Chile. 

Net sales for 2006 were Ps.25,635 million, representing an 11.9% increase from Ps.22,901 million in 2005. This increase was primarily attributable 

to the greater volume of domestic sales of diesel (which increased 11.5%) and gasoline products (which increased 21%), slight increases in the average 
domestic prices of these products, as well as a 16% increase in the average domestic price of natural gas attributable to the significantly increased 
portion of sales to industrial segments of the Argentine market, which more than offset a 5% decrease in the domestic volume of natural gas sold. As a 
result, domestic market sales increased 19.1% to Ps.16,986 million in 2006 from Ps.14,257 million in 2005. Exports were Ps.8,649 million in 2006 
compared to Ps.8,644 million in 2005. 

For further information on our net sales for the periods discussed above, see “—Results of operations by business segment for the years ended 

December 31, 2007, 2006 and 2005.” 

Cost of sales 

Cost of sales in 2007 was Ps.19,000 million, compared to Ps.15,821 million in 2006, representing a 20.0% increase, which was mainly attributable 

to a 45% increase in the volume of crude oil purchased from third parties, driven by our efforts to maintain our high refinery utilization rates 
notwithstanding our declining production, as well as to an increase in the volume of other products purchased from third parties. In addition, 
depreciation of fixed assets increased 10.9%, mainly as a result of increased asset values attributable to (i) higher capitalized well abandonment 
obligations at the end of 2006, according to the new estimates performed as of that time based on new information concerning future costs associated 
with those activities, which began to be depreciated in 2007 based on the unit of production method and (ii) increased assets (principally related to our 
Exploration and Production business segment) subject to depreciation in 2007. Salaries and social security taxes, maintenance costs, contract services 
and certain other production costs also increased, driven mainly by inflation and the renegotiation of certain labor and service contracts. Our contractual 
commitments contributed Ps.77 million to the increase in cost of sales,  

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principally due to an increase in penalties recorded for contractual liabilities (including in connection with certain export contracts) to Ps.596 million in 
2007 from Ps.519 million in 2006. 

Cost of sales in 2006 was Ps.15,821 million compared to Ps.11,258 million in 2005, representing a 40.5% increase, which was mainly attributable 
to a 21% increase in average crude oil prices and a 147% increase in crude oil volume purchased from third parties, partly in response to our declining 
production, to maintain the operating pace of our refineries, and a 44% increase in average natural gas prices and a 7% increase in the volume of natural 
gas imports to meet domestic demand, as well as sharply increasing depreciation of fixed assets due to a reduced base of proved reserves when 
computing depreciation rates. Additionally, maintenance costs and contract services increased, we incurred penalties resulting from our inability to 
deliver natural gas pursuant to our contractual commitments (for further information, see “Item 8. Financial Information—Legal Proceedings”), and 
royalties increased due to WTI price increases. 

Selling expenses 

Our selling expenses were Ps.2,120 million in 2007, Ps.1,797 million in 2006 and Ps.1,650 million in 2005, representing an increase of 18.0% from 

2006 to 2007 and an increase of 8.9% from 2005 to 2006. 

Operating income 

Operating income in 2007 was Ps.6,657 million, compared to Ps.6,883 million in 2006, representing a decrease of 3.3%. Operating income 
decreased primarily due to the increased purchases of crude oil and diesel from third parties described above, as well as increased depreciation of fixed 
assets and other expenses. 

Operating income in 2006 was Ps.6,883 million compared to Ps.9,161 million in 2005, representing a decrease of 24.9%. Operating income 

decreased primarily due to the previously mentioned increase in expenses (higher crude oil and natural gas purchases and increased depreciation of fixed 
assets, maintenance costs and contract services, among others) that were not offset by corresponding increases in domestic prices, which increased at a 
substantially slower pace compared to international prices. 

Our operating margins (operating income dividend by net sales) were 22.9%, 26.9% and 40.0% in 2007, 2006 and 2005, respectively. Increased 

volumes of crude oil purchases in 2007 and 2006 adversely affected our margins because we lost the margin earned on our internal exploration and 
production activities. 

Other expenses, net 

Other expenses, net increased 115.2% to Ps.439 million in 2007 from Ps.204 million in 2006, mainly as a result of increased reserves for lawsuits, 

due mainly to new developments in our existing lawsuits and our reassessment of certain environmental obligations. See Note 3(j) to our Audited 
Consolidated Financial Statements. 

Other expenses, net decreased 62.6% to Ps.204 million in 2006 from Ps.545 million in 2005, mainly as a result of reduced insurance premiums 

attributable to the non-recurrence in 2006 of payments made in 2005 attributable to the termination of our membership in OIL Insurance Ltd., an 
industry insurance pool, and a variety of other factors. The principal expenses during 2006 derived from provisions for lawsuits, environmental 
remediation and other contingencies. See Note 3 to the Audited Consolidated Financial Statements. 

Financial income (expense), net and holding gains 

In 2007, financial income (expense), net and holding gains increased 14.1% to Ps.518 million from Ps.454 million in 2006. This increase was 

attributable principally to higher positive exchange rate differences on our net non-peso denominated financial assets, as well as to holding gains on 
inventories from stock revaluation for increasing production costs compared with the prior period. These positive results were offset in part by higher 
financial expense attributable to increased accruals related to our well abandonment obligations resulting from an increase in such obligations. 

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In 2006, financial income, net and holding gains increased 345% to Ps.454 million from Ps.102 million in 2005. This increase was attributable to a 

sharp rise in holding gains on inventories due to stock revaluation for increasing production costs. In addition, income from short-term investment 
increased and interest expense from liabilities decreased. 

Taxes 

Income tax expense in 2007 decreased 1.5% to Ps.2,758 million from Ps.2,801 million in 2006. The effective income tax rates for 2007 and 2006 
were 40.3% and 38.6%, respectively, compared to the statutory income tax rate of 35%. Our effective tax rates exceed the Argentine corporate income 
tax rate mainly due to the non-deductibility of the amortization of the effect of inflation indexation on fixed assets, which is not deductible from income 
tax under prevailing Argentine tax legislation. See Note 3(k) to the Audited Consolidated Financial Statements. 

Income tax expense during 2006 decreased 17.9% to Ps.2,801 million from Ps.3,410 million in 2005. The effective income tax rates for 2006 and 

2005 were 38.59% and 38.87%, respectively, compared to the statutory income tax rate of 35%. 

Net income 

Net income for 2007 was Ps.4,086 million, compared to Ps.4,457 million in 2006, a decrease of 8.3%. This decrease is mainly attributable to the 

3.3% decline in operating income and the increase in other expenses, net described above. 

Net income for the year ended December 31, 2006 was Ps.4,457 million, compared to Ps.5,362 million in 2005, a decrease of 16.9%. This decrease 

is mainly attributable to the 24.9% decline in operating income, partially offset by lower other expenses, net and improved financial income, net. 

Results of operations by business segment for the years ended December 31, 2007, 2006 and 2005 

The following table sets forth net sales and operating income for each of our lines of business for the years ended December 31, 2007, 2006 and 

2005: 

Net sales(1) 
Exploration and production(2) 

To unrelated parties 
To related parties 
Intersegment sales and fees(3) 

Total exploration and production 

Refining and marketing(4) 
To unrelated parties 
To related parties 
Intersegment sales and fees 

Total refining and marketing 

Chemical 

To unrelated parties 
Intersegment sales and fees 

Total chemical 

2007 

For the Year Ended December 31,
2006 
(in millions of pesos)

2005

3,288     
724     
14,056     
18,068     

20,375     
2,045     
1,858     
24,278     

2,563     
892     
3,455     

3,076
774
14,033   
17,883   

17,651
1,624
1,526   
20,801   

2,401

647   
3,048   

2,910
626
11,659 
15,195 

15,791
1,425
962 
18,178 

2,062
207 
2,269 

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Corporate and Other 

To unrelated parties 
Intersegment sales and fees 
Total corporate and others 
Less intersegment sales and fees 
Total net sales(5) 
Operating income (loss) 

Exploration and production 
Refining and marketing 
Chemical 
Corporate and Other 
Consolidation adjustments 
Total operating income 

2007 

For the Year Ended December 31,
2006 
(in millions of pesos)

2005

109     
440     
549     

109
282
391

87
243
330

(17,246)    
29,104     

(16,488)  
25,635

(13,071)
22,901

5,679     
1,234     
500     
(620)    
(136)    
6,657     

6,564
258
572
(540)

29   

6,883

7,140
1,900
542
(451)
30 
9,161

___________ 
(1) 

Net sales are net to us after payment of a fuel transfer tax, turnover tax and custom duties on exports. Royalties with respect to our production 
are accounted for as a cost of production and are not deducted in determining net sales (see Note 2(g) to the Audited Consolidated Financial 
Statements). 

(2) 

(3) 

(4) 

(5) 

Includes exploration and production operations in Argentina and the United States.

Intersegment sales of crude oil to Refining and Marketing are recorded at transfer prices that reflect our estimates of Argentine market prices.

Includes LPG activities. 

Total net sales include export sales of Ps.8,400 million, Ps.8,649 million and Ps.8,644 million for the years ended December 31, 2007, 2006 
and 2005, respectively. The export sales were mainly to the United States, Brazil and Chile.

Exploration and production 

Exploration and Production net sales in 2007 were Ps.18,068 million, representing a 1.0% increase from Ps.17,883 million in 2006. Overall 
segment crude oil sales, substantially all of which were intersegment sales, increased Ps.23 million in 2007. This increase was due to a 9% increase in 
average international crude oil prices that set the internal price of transfer between business segments prior to the implementation of a new regime for 
withholding rates on exports in November 2007, which more than offset the 6% decrease in the volume of crude oil sales that resulted mainly from a 5% 
decrease in our production attributable to the increasing maturity of our fields. Additionally, in 2007, the average price of natural gas sold in the 
domestic market increased 9.6% from 2006, due mainly to increases in the price of natural gas sold to industrial customers and thermal power plants, 
which more than offset the significant increase in the portion of gas sold to the residential segment of the market, the prices for which are significantly 
lower than those for other segments of the market, and the decline in exports of natural gas attributable to lower export volumes (which decreased 56.1% 
from 2006). Sales of gas by-products and other products remained stable. 

Exploration and Production operating income declined 13.5% to Ps.5,679 million in 2007 from Ps.6,564 million in 2006, due to the above-

mentioned decline in crude oil sales volumes and to higher operating expenses. Segment operating expenses increased 9.5% due to significant increases 
in contract works and services, driven mainly by the renegotiation of certain service contracts in line with industry-wide cost increases in such service 
contracts in Argentina, as well as by higher labor costs resulting from renegotiations of labor contracts with petroleum workers’ unions based on higher 
inflation and increasing oil prices. Additionally, we recorded a Ps.353 million, or 10.8%, increase in depreciation of fixed assets mainly due to the 
decline in our reserves combined with the increase in assets  

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related to well abandonment obligations. Furthermore, new exploration initiatives, mainly in offshore areas, contributed a further Ps.117 million to the 
increase in segment operating expenses in 2007. 

Average oil production during 2007 decreased 4.6% to 329 thousand barrels per day from 345 thousand barrels per day in 2006. Natural gas 

production in 2007 decreased 2.3% to 1,740 million cubic feet per day from 1,784 million cubic feet per day in 2006. These declines were attributable to 
the natural decline in the production curve resulting from the continuing overall maturity of our fields and the cessation of production at our Magallanes 
field in January 2007 due to pipeline problems. It is currently estimated that production will begin in this field in the first half of 2008. 

Exploration and Production net sales in 2006 were Ps.17,883, representing a 17.7% increase from Ps.15,195 million in 2005. Oil sales increased 

Ps.2,191 million in 2006, due to increasing international crude oil prices that contributed to the higher internal price of transfer between business 
segments. This effect was partially offset by a 6% decrease in the volume of crude oil sales resulting from lower production. Additionally, natural gas 
sales increased by Ps.292 million due to a 22% increase in our average domestic price of natural gas in 2006, the effect of which was partially offset by a 
5% decrease in the domestic volumes of natural gas sold and an increased natural gas export tax rate (the effect of which more than offset a 43% 
increase in our average international natural gas sales prices). 

Exploration and Production operating income declined 8.1% to Ps.6,564 million in 2006 from Ps.7,140 million in 2005 due to higher operating 

expenses. The decrease mainly reflects a Ps.1,033 million, or 46%, increase in depreciation of fixed assets attributable to a higher applicable rate 
resulting from a reduced base of proved reserves as well as an increase in assets resulting from a significant increase in our well abandonment 
obligations at the beginning of the year. Contract works and services and repair and maintenance expenses also increased due to higher costs of services 
rendered resulting from the renegotiation of certain of our service contracts in line with industry-wide increases in the cost of such contracts in 
Argentina. In addition, the volume of natural gas imported from third parties to meet previous sales commitments increased 7% while the average price 
of such purchases increased 44%. 

Oil production during 2006 decreased 6.0% to 345 thousand barrels per day from 367 thousand barrels per day in 2005, while natural gas 
production in 2006 decreased 2.3% to 1,784 million cubic feet per day from 1,827 million cubic feet per day in 2005, in each case mainly as a 
consequence of a production decrease due to the natural decline in the production curve attributable to the continuing overall maturity of our fields, as 
well as a labor strike at our production facilities in southern Argentina during the early months of 2006. 

Refining and marketing 

Refining and marketing net sales in 2007 were Ps.24,278 million, 16.7% higher than the Ps.20,801 million net sales recorded in 2006. This increase 

was mainly attributable to increases in the volumes and average prices of diesel and gasoline sold in the domestic market, the segment’s two principal 
products. Domestic diesel volumes and average prices increased by 7.7% and 23.0%, respectively, while domestic gasoline volumes and average prices 
increased by 19.8% and 10.3%, respectively. Higher domestic sales were offset by lower export sales of many of our products, especially gasoline, as the 
Argentine government’s requirement that we fulfill domestic demand resulted in a 24.9% decrease in our exported volume of gasoline, the segment’s 
principal export product. Gasoline prices were on average significantly higher in international markets than in Argentina during 2007. 

Refining and marketing operating profit increased 378.3% to Ps.1,234 million in 2007, from Ps.258 million in 2006. This increase was due to the 

above-mentioned increases in volumes and prices of domestic sales of diesel and gasoline, partially offset by an approximately 5% increase in the 
average price paid for crude oil to our Exploration and Production business segment and higher crude oil volumes purchased from third parties to satisfy 
the increase in daily production of our refineries. Purchases of crude oil accounted for over 90% of the segment’s operating costs in both years. The 
increased domestic sales described above were also partially offset by a 15.1% increase in refining costs (excluding crude oil costs), mainly due to 
higher contract service costs as a result of the renegotiation of certain service contracts and inflation adjustments, and the implementation in November 
2007 of a new regime for withholding rates on exports. Refining cost per barrel, which we calculate as the segment’s cost of sales for the  

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period less crude oil purchase costs and depreciation of fixed assets, divided by the number of barrels produced during the period, was Ps.10.7 in 2007, 
compared to Ps.9.3 in 2006. 

Refinery output in 2007, including 50% of Refinor’s output (we own 50% of Refinor), reached 334 thousand barrels per day, representing a 3.4% 
increase over the 323 thousand barrels per day processed in 2006 and a utilization rate over 100% of the existing processing capacity of 332.5 thousand 
barrels per day. 

Net sales in 2006 were Ps.20,801 million, 14.4% higher than the Ps.18,178 million net sales recorded in 2005, resulting mainly from increases in 

the domestic volume of diesel and gasoline products sold of 11.5% and 21%, respectively, in 2006 compared to the prior year. The increases in the 
domestic volumes of diesel and gasoline products sold were reinforced by increases in the average domestic prices of diesel and gasoline of 
approximately 3% and 1%, respectively, in 2006 compared to 2005. In addition, the volumes of diesel and gasoline products sold in the international 
market decreased by 54% and 29%, respectively, as a result of the need to satisfy increasing domestic demand. This decrease was offset in part by 
increases in the international prices of all refined products and by the increase in the exported volume and price of fuel oil. 

Operating profit was Ps.258 million in 2006, representing an 86.4% decrease from Ps.1,900 million in 2005. This decrease was due mainly to the 

higher prices of crude oil, which accounted for over 90% of the operating costs of the segment. The segment recorded a 28% increase in the average 
price of crude oil purchased from the Exploration and Production business segment and a 21% increase in the average price of crude oil purchased from 
third parties. Refining cost per barrel was Ps.9.3 in 2006 compared to Ps.7.6 in 2005. 

Refinery output in 2006, including 50% of Refinor’s output (we own 50% of Refinor), reached 323 thousand barrels per day, representing a 

utilization rate of 97.14% of the existing processing capacity of 332.5 thousand barrels per day. 

Chemical 

Net sales in 2007 increased by 13.4% to Ps.3,455 million from Ps.3,048 million in 2006, while operating income in 2007 decreased 12.6% to 
Ps.500 million from Ps.572 million in 2006. The increase in net sales was attributable mainly to a 24.4% increase in the domestic sales volumes of 
petrochemicals, driven mainly by higher demand for fertilizers (the prices for which also increased) and certain other products, an 8.6% increase in the 
average domestic sales prices of petrochemicals, and an increase in the average price of exported petrochemicals, partially offset by the 2% decrease in 
the volume of exported petrochemicals.  The decrease in operating income was attributable to the significantly lower results of Profertil (which 
contributed Ps.191 million to the segment’s operating income in 2007 compared to Ps.310 million in 2006), which were attributable mainly to lower 
production of urea (a fertilizer) resulting from reduced availability of natural gas during the winter months, an increase in maintenance and contract 
services costs, and the effects of the new withholding tax regime for exports that came into effect in November 2007, which collectively outpaced the 
increase in net sales described above. 

Net sales in 2006 increased 34.3% to Ps.3,048 million from Ps.2,269 million in 2005. Operating income in 2006 was Ps.572 million, a 5.5% 
increase from Ps.542 million in 2005, attributable mainly to higher domestic and international prices of methanol, which on average increased 42%, 
which more than offset the decrease in methanol sales volumes, significant increases in raw material prices (principally virgin naphtha) and price 
limitations in respect of domestic sales of a certain fertilizer in the second half of 2006. 

Liquidity and Capital Resources 

Financial condition 

Total debt outstanding, net of cash, as of December 31, 2007 and 2006 was U.S.$253 million (Ps.798 million) and U.S.$415 million (Ps.1,307 
million), respectively, consisting of short-term debt (including the current portion of long-term debt) of U.S.$87 million (Ps.275 million) and long-term 
debt of U.S.$166 million (Ps.523 million) as of December 31, 2007, and short-term debt of U.S.$253 million (Ps.797 million) and long-term debt of 
U.S.$162 million (Ps.510 million) as of December 31, 2006. As of December 31, 2007 and 2006, almost all of our debt was  

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denominated in U.S. dollars. The use of derivatives is detailed in “Item 11. Quantitative and Qualitative Disclosure about Market Risk.” 

Since September 2001, we have repurchased certain of our publicly-traded bonds in open market transactions on an arms-length basis. As of 

December 31, 2007, we had repurchased approximately U.S.$159 million of our outstanding bonds. We may from time to time make additional 
purchases of, or affect other transactions relating to, our publicly-traded bonds if in our own judgment the market conditions are attractive. 

The following tables set forth our consolidated cash flow information for the periods indicated. 

Net cash flows provided by operating activities 
Net cash flows used in investing activities 
Net cash flows used in financing activities 
Net increase/(decrease) in cash and equivalents 
Cash and equivalents at the beginning of period 
Cash and equivalents at the end of period 

2007 

For the Year Ended December 31,
2006 
(in millions of pesos)

2005

8,756     
(6,187)    
(2,809)    
(240)    
1,087     
847     

8,019
(5,109)
(2,338)  
572
515
1,087

8,251
(3,262)
(5,361)
(372)
887
515

Net cash flow provided by operating activities was Ps.8,756 million in 2007, compared to Ps.8,019 million in 2006, an increase of 9.2% attributable 

mainly to higher operating income, excluding amortization of fixed assets in 2007, and lower tax payments. Additionally, net cash flow provided by 
operating activities was Ps.8,019 million in 2006, compared to Ps.8,251 million in 2005, a decrease of 3%, attributable mainly to lower operating income 
in 2006 that was partially offset by lower tax payments. 

The principal uses of cash in investing and financing activities in 2007 included Ps.6,163 million in fixed asset acquisitions relating mainly to 
drilling equipment used by our Exploration and Production business unit, Ps.2,360 million in dividend payments and Ps.449 million in net repayments of 
outstanding loans. The principal uses of cash in investing and financing activities in 2006 included Ps.5,002 million in fixed asset acquisitions relating 
mainly to drilling equipment used by our Exploration and Production business unit and Ps.2,360 million in dividend payments. In 2005, the principal 
uses of cash in investing and financing activities included Ps.3,722 million in fixed asset acquisitions, Ps.4,878 million in dividend payments and Ps.483 
million in net repayments of outstanding loans. The cash provided by these activities included mainly the sale of Petroken and PBB, which generated 
Ps.454 million. 

Our current financing policy is to use cash flows provided by operating activities and debt to fund both our investing and operating activities. 

In addition, Repsol YPF and Petersen Energía have agreed in the shareholders’ agreement entered into by them in connection with the Petersen 

Transaction to effect the adoption of a dividend policy under which we would distribute 90% of our net income as dividends, starting with our net 
income for 2007. They have also agreed to vote in favor of requiring us to distribute an additional dividend of U.S.$850 million, of which half will be 
paid in 2008 and half will be paid in 2009. See “Item 8. Financial Information—Dividends Policy” and “Item 7. Major Shareholders and Related Party 
Transactions—Shareholders’ Agreement.” 

The shareholder’s meeting held on January 8, 2008 approved a notes program for an amount up to U.S.$1 billion. The proceeds of any offerings 

under this program must be used exclusively to invest in fixed assets and working capital in Argentina. 

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The following table sets forth our commitments for the periods indicated below with regard to the principal amount of our debt, as of December 31, 

2007, plus accrued but unpaid interest through December 31, 2007: 

Total 

Less than 1 
year

Expected Maturity Date

1 – 2 years

2 – 3 years
(in millions of pesos)

3 – 4 years     

4 – 5 years

More than 5 
years

994     

471

318

—

—     

—

205

Debt 

Contractual obligations 

The following table sets forth information with regard to our commitments, expressed in U.S. dollars at the exchange rate of Ps.3.15 to U.S.$1.00, 

under commercial contracts for the years indicated below, as of December 28, 2007 (the last rate quoted in December 2007): 

Contractual Obligations 

Total

Less than 1 
year

1 – 3 years     
(in millions of U.S.$) 

3 – 5 years

More than 5 
years

Debt(1) 
Operating Lease Obligations 
Purchase Obligations(2) 
Purchases of services 
Purchases of goods 

LPG 
Electricity 
Gas 
Oil 
Steam 
Others 
Other Liabilities(3) 
Total(3) 
___________ 
(1) 

469
340
2,964
1,301
1,663
80
386
157
762
211
67
2,771
6,544

163
72
558
279
279
20
44
46
110
18
41
1,906
2,699

124     
126     
764     
365     
399     
33     
73     
41     
190     
36     
26     
279     
1,293     

13
86
549
217
332
18
66
41
171
36

201
849

169
56
1,093
440
653
9
203
29
291
121

385
1,703

These projected amounts include interest due during all the periods presented. Interest on variable rate instruments is calculated using the rate 
as of December 31, 2007 for all periods. 

(2) 

(3) 

Includes purchase commitments under commercial agreements that do not provide for a total fixed amount, which have been valued using our 
best estimates. Accordingly, our actual purchase obligations may differ from the estimated amounts shown in the table. 

Reserves for contingent liabilities under commercial contracts, which amounted to U.S.$736 million as of December 31, 2007, are not 
included in the table above since we cannot, based on available evidence, reasonably estimate the settlement dates of such contingencies.

Sale Commitments 

Oil sales 
Gas sales 
LPG 
Other petroleum and petrochemical product sales 

Total

12
10,649
1,810
4,910

100

Less than 1 
year

1 – 3 
years 
(in millions of U.S. dollars) 
12
1,187
182
1,097

—     
2,191     
357     
1,424     

3 – 5 years

More than 5 
years

—
2,147
357
1,247

—
5,124
914
1,142

  
  
  
  
  
  
  
  
  
  
 
  
  
  
 
  
 
   
  
 
   
  
  
     
  
   
Sale Commitments 

Services 
Total 

Total

282   
17,663   

Less than 1 
year

1 – 3 
years 
(in millions of U.S. dollars) 
89   
2,567   

73     
4,045     

3 – 5 years

More than 5 
years

37   
3,788   

83 
7,263 

We have additional commitments under derivatives contracts and guarantees. For a discussion of these additional commitments see “—Guarantees 

provided” below and “Item 11. Quantitative and Qualitative Disclosures About Market Risk.” 

Transactions with unconsolidated variable interest entities 

Since 1996, we have entered into three forward oil sale agreements, which we refer to as the FOS transactions in this annual report. These 
agreements were entered into in order to obtain cash to fund operations in advance of the actual sale and delivery of oil. Under these transactions, we 
were advanced U.S.$381 million in 1996, U.S.$300 million in 1998 and U.S.$383 million in 2001, against future deliveries of oil. Our obligations under 
the FOS transactions are recorded as a liability in the consolidated balance sheet as customer advances and will be reduced and moved to income as the 
physical deliveries are made over the term of the contracts. As of December 31, 2007, the amount of FOS customer advances recorded on our 
consolidated balance sheet was Ps.9 million (approximately U.S.$3 million). The obligations to deliver crude oil under the agreements entered into in 
1996 have been satisfied in their entirety, with the last delivery having taken place in October 2003. The obligations to deliver crude oil under the 
agreement entered into in 2001 were cancelled on September 30, 2005. The obligations to deliver crude oil under the 1998 agreement will continue 
through May 2008. 

The structure of the remaining FOS transaction is similar to those already cancelled. We enter into a forward oil sale agreement that calls for the 
future delivery of oil for the life of the contract. We were paid in advance for the future delivery of oil. The fixed price of the oil to be delivered was 
calculated using various factors, including the expected future price and quality of the crude oil being delivered. The counterparty to the oil supply 
agreement is a special purpose entity incorporated in the Cayman Islands, which finances itself as described below. The oil to be delivered under the 
supply agreement is subsequently sold in the open market. 

We are exposed to any change in the price of the crude oil we will deliver in the future under the FOS transaction. Our exposure derives from the 

crude oil swap agreement under which we pay a fixed price with respect to the nominal quantity of barrels of the crude oil sold, and receive the variable 
market price of such barrels of crude oil. See “Item 11. Quantitative and Qualitative Disclosures About Market Risk—Crude oil price exposure” and 
“Item 7. Major Shareholders and Related Party Transactions.” See Note 13(i) to the Audited Consolidated Financial Statements for a description of the 
treatment of the FOS transactions under U.S. GAAP. 

The following provides an overview of the outstanding FOS transaction: 

Date 
Net proceeds(1) 
SPE 
YPF Quantified barrels liability 
Purchaser 
Marketer 
Guarantee/hedge 

Total crude oil barrels to be delivered over the life 
of the contract 
Average crude oil barrels per month 
Term of transaction 

FOS II

June 24, 1998
U.S.$299,967,289
Oil Enterprises Ltd.
U.S.$315 million 6.239% notes
Oil Enterprises Ltd.
YPF
Oil Price Hedge Agreement/
Default Insurance

23,933,982
201,126
10 years

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___________ 
(1) 

The total sale amount under the remaining FOS transaction is U.S.$314,995,137. The difference between the net proceeds and the sale amount 
is deposited in a reserve account to cover certain contingencies and, absent an event of default or other events set forth in the transaction 
documents, will be paid to us during the last three months of the transaction term.

The series of FOS II are insured by MBIA Inc. 

Total remaining crude delivery obligations under the FOS transaction represent 0.99% of our crude oil production for 2007. If we are not able to 

deliver the required number of barrels from our own production, we may purchase oil of similar quality in the open market. 

As described in “Item 8. Financial Information—Legal Proceedings” on March 8, 2004, the Argentine tax authorities formally communicated to us 
their view that the FOS transactions should have been treated as financial transactions carried out in Argentina and, as such, should have been subject to 
the relevant tax withholdings. We have presented our defense rejecting the claim and are currently arguing our position. 

Covenants in our indebtedness 

Our financial debt generally contains customary covenants for contracts of this nature, including negative pledge, material adverse change and 

cross-default clauses, as well as customary acceleration provisions. 

With respect to financial debt totaling Ps.994 million (U.S.$316 million), including accrued interest (long- and short-term debt) as of December 31, 

2007, we have agreed, among other things and subject to certain exceptions, not to establish liens or charges on our assets. In the event of a payment 
default, the creditors may declare due and immediately payable the principal and accrued interest on amounts owed to them. Upon an event of default 
with respect to other matters, in the case of outstanding negotiable obligations amounting to Ps.537 million (U.S.$170 million) (included in the figure 
above), the trustee may declare due and immediately payable the principal and accrued interest on amounts owed if required by the holders of at least 
25% of the total principal of the outstanding obligations. 

Almost all of our total outstanding financial debt is subject to cross-default provisions. These provisions generally may be triggered if an event of 

default occurs with respect to the payment of principal amount or interest on debts equal to or exceeding U.S.$20 million. As a result of these cross-
default provisions, a default on our part or the part of any of our consolidated subsidiaries covered by such provisions could result in a substantial 
portion of our debt being declared in default or accelerated. None of our debt or the debt of our consolidated subsidiaries is currently in default. 

Credit rating 

On April 24, 2006, FITCH upgraded our long-term debt rating to BB+. Our long-term debt rating was upgraded to “Ba2” by Moody’s on 
November 21, 2005. Standard & Poor’s maintains its rating at “BB” with a stable outlook. Each of these ratings is in reference to foreign currency-
denominated long-term debt. A security rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at 
any time by the assigning rating organization. 

We do not have any ratings downgrade triggers that would accelerate the maturity dates of our debt or trigger any other contractual obligation on 
our part. However, a downgrade in our credit rating could have a material adverse effect on the cost of renewing existing credit facilities, or obtaining 
access to new ones in the future. In the past, our main sources of liquidity have been our cash flows from operations, bank financings, issuances of debt 
securities and the proceeds from our divestment plan. Any future downgrades will not preclude us from using any of our existing credit lines. 

Guarantees provided 

As of December 31, 2007, we had signed guarantees in relation to the financing activities of Pluspetrol Energy S.A., Central Dock Sud S.A. and 

Inversora Dock Sud S.A. in amounts of approximately U.S.$24 million (U.S.$21  

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million as of April 10, 2008), U.S.$ 81 million (U.S.$23 million as of April 10, 2008) and Ps.5 million, respectively. The corresponding loans mature in 
2011, 2013 and 2009, respectively. 

Capital investments and expenditures 

Capital investments in 2007 totaled approximately Ps.6,541 million. The table below sets forth our capital expenditures and investments by activity 

for each of the years ended 2007, 2006 and 2005. 

2007

2006

2005

(in millons of 
pesos)

(%)

(in 
millions 
of pesos)

(%)

(in 
millions 
of pesos)

(%)

5,186
898
143
314   
6,541   

79
14
2
5 
100% 

4,217
733
137
176   
5,263   

80 
14 
3 
3 
100%   

3,179
541
104
108   
3,932   

81
14
2
3 
100%

Capital Expenditures and Investments 
Exploration and Production 
Refining and Marketing 
Chemical 
Corporate and Other 
Total 

Future capital expenditures and investments 

We have budgeted approximately U.S.$2 billion in investments and capital expenditures for 2008, a significant portion of which will be dedicated 
to our exploration and production activities. During the period 2008-2012, we expect to make capital expenditures totaling 7.8 billion Euros, including 
1.8 billion Euros relating to our PLADA project to increase recovery rates in our fields. We intend to finance planned capital expenditures through our 
internally-generated cash flows and, to the extent necessary, borrowings. For a detailed description of our principal current investment projects, see 
“Item 4. Information on the Company—Overview.” 

Actual investments and capital expenditures may differ from the above estimates. 

Off-Balance Sheet Arrangements 

We have entered into certain off-balance sheet arrangements, as described in “—Liquidity and Capital Resources—Transactions with 

unconsolidated variable interest entities,” “—Guarantees provided” and “—Contractual obligations” above. 

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ITEM 6. Directors, Senior Management and Employees 

Board of Directors 

The current members of our Board of Directors, the year in which they were appointed and the year their current term expires are as follows: 

Name 
Antonio Brufau Niubo 

Sebastián Eskenazi 
Enrique Eskenazi 
Antonio Gomis Sáez 
Aníbal Guillermo Belloni 
Mario Blejer 
Carlos Bruno 
Santiago Carnero* 
Carlos de la Vega 
Matías Eskenazi Storey 
Eduardo Elsztain 
Salvador Font Estrany 
Federico Mañero 
Fernando Ramírez Mazarredo 
Luis Suárez de Lezo Mantilla 
Javier Monzón 
Mario Vázquez 
Alejandro Quiroga López 
Gonzalo López Fanjul 
Alfredo Pochintesta 
Rafaél Lopez Revuelta 

Tomás García Blanco 

Fabián Falco 
Walter Forwood 
Fernando Dasso 
Carlos Jimenez López 
Carlos Alfonsi 
Ezequiel Eskenazi Storey 
Mauro Renato José Dacomo 
Ignacio Cruz Morán 
Eduardo Ángel Garrote 

____________ 
* Representing our Class A shares. 

Position

  Chairman and Director

Executive Vice-Chairman, Chief Executive Officer and 
Director

  Vice-Chairman and Director
  Chief Operating Officer and Director
  Director
  Director
  Director
  Director
  Director
  Director
  Director
  Director
  Director
  Director
  Director
  Director
  Director
  General Counsel and Alternate Director
  Alternate Director
  Alternate Director
  Director of Chemicals and Alternate Director

Director of Exploration and Production and Alternate 
Director
Director of Communication and External Relations and 
Alternate Director

  Chief Financial Officer and Alternate Director
  Director of Human Resources and Alternate Director
  Director of Management Control and Alternate Director
  Alternate Director
  Alternate Director
  Alternate Director
  Alternate Director
  Alternate Director

Director 
Since 
2004 

Term 
Expires
2009

2008 
2008 
2007 
2008 
2008 
2008 
2008 
1993 
2008 
2005 
2008 
2005 
2008 
2008 
2005 
2008 
2004 
2005 
2008 
2008 

2008 

2008 
2008 
2008 
2008 
2008 
2008 
2008 
2008 
2008 

2009
2009
2009
2009
2009
2009
2008
2009
2009
2009
2009
2009
2009
2009
2009
2009
2009
2009
2009
2009

2009

2009
2009
2009
2009
2009
2009
2009
2009
2009

None of the members of the Board of Directors owns shares in YPF. Sebastián Eskenazi, Enrique Eskenazi, Matías Eskenazi Storey and Ezequiel 

Eskenazi Storey as a group control Petersen Energía, which owns 14.9% of our capital stock, and individually hold options to purchase up to 3.84%, 
2.32%, 3.84% and 0.10%, respectively, or 10.1% collectively, of our capital stock. See “Item 7. Major Shareholders and Related Party Transactions.” 

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Directors’ outside business interests and experience 

Antonio Brufau Niubo 

Mr. Brufau Niubo graduated with an economics degree from the University of Barcelona. From 1999 to 2004, he acted as managing director for the 
La Caixa Group. He served as a member of the Repsol YPF Board of Directors from 1996 until becoming chairman and CEO of Repsol YPF in October 
2004, a position he currently occupies. He was appointed chairman of Gas Natural group in July 1997 and is now vice chairman of the group. From July 
2002 to July 2005, he served as chairman of Barcelona’s Círculo de Economía. Mr. Brufau has served on the boards of several other companies, 
including Suez; Enagás; Abertis; Aguas de Barcelona; Colonial and Caixa Holding; the CaixaBank France and CaixaBank Andorra. Until December 
2005, he was the only Spanish member of the Executive Committee of the International Chamber of Commerce.  

Sebastián Eskenazi 

Mr. Eskenazi has been Executive Vice-Chairman, Chief Executive Officer and Director of YPF since March 2008.  He is also Co-Chief Executive 
Officer of Marviol S.R.L. and Petersen Energía S.A. (Spain) and President of Arroyo Lindo S.A. and Red Link S.A.  Mr. Eskenazi is Vice President of 
Petersen Inversiones S.A, Petersen Energía S.A. (Argentina), Petersen Thiele y Cruz S.A., Mantenimientos y Servicios S.A., Banco de Santa Cruz S.A., 
Nuevo Banco de Santa Fe S.A. and Nuevo Banco de Entre Ríos S.A., an alternate member of the Board of Directors of Banco de San Juan S.A. and 
member of the Board of Directors of Petersen Energía S.A. (Spain), Petersen Energía Pty. Ltd. and Petersen Inversiones S.A. 

Enrique Eskenazi 

Mr. Eskenazi graduated with a chemical engineering degree from the Universidad Nacional del Litoral. Mr. Eskenazi has been Vice Chairman and 

Director of YPF since 2008.  He is also the Co-Chief Executive Officer of Marviol S.R.L. and the President of Petersen Inversiones S.A., Napelgrind 
S.A., Banco de San Juan S.A., Banco de Santa Cruz S.A., Nuevo Banco de Santa Fe S.A., Nuevo Banco de Entre Ríos S.A., Petersen Energía S.A. 
(Argentina), Petersen Energía S.A. (Spain), Fundación Banco de Santa Cruz S.A., Fundación Nuevo Banco de Santa Fe S.A. and Fundación Nuevo 
Banco de Entre Ríos S.A.  He is also Vice President of Mantenimientos y Servicios S.A. and Santa Sylvia S.A. and a member of the Board of Directors 
of Petersen Thiele y Cruz S.A., Estacionamientos Buenos Aires S.A., Petersen Energía S.A. (Spain), Petersen Energía Pty. Ltd. and Agro Franca S.A. 

Antonio Gomis Sáez 

Mr. Gomis Sáez graduated with a chemical engineering degree from the Complutense University of Madrid and a master’s in business 
administration from IESE Business School – University of Navarra in Spain. He began his career in 1974 at the Repsol YPF Petróleo refinery in 
Puertollano, Ciudad Real and later went to work at the International Energy Agency in Paris founded by the Organization for Economic Cooperation and 
Development (“OECD”). He served as advisor to the General Secretary of Energy and Mineral Resources at the Spanish Ministry of Energy. In 1986 he 
joined the Instituto Nacional de Hidrocarburos, where he was appointed managing director of international and institutional relations of Repsol YPF. 
From 1997 to 2000, he was general director of energy at the Spanish Ministry of Industry and Energy. From September 2000 to November 2004, he was 
corporate director of external relations, overseeing investor and media relations. In January 2005 he was appointed CEO of Repsol YPF Química and 
managing director of Repsol YPF’s Chemicals Europe and Rest of the World. In July 2007 he was appointed director of our company and in August 
2007 he became our Chief Executive Officer and served in that capacity until March 2008. Since March 2008, he has served as our Chief Operating 
Officer. 

Aníbal Guillermo Belloni 

Mr. Belloni holds a degree in Electrical Engineering from the Universidad de Buenos Aires, and has been a director of Petersen, Thiele y Cruz 

S.A. since 1989.  He has worked as an engineer and business development manager at Sade S.A., as a general manager at Cosapi S.A., in Lima, Peru, as 
a Vice President of Kanter S.A., and as  

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the Argentine representative of Foster Wheeler Corporation.  He has been an Executive Board member of the Argentine Chamber of Construction and 
was a founding member and Executive Board member of the Argentine Union of Construction. 

Mario Blejer 

Mr. Blejer holds a bachelor’s and a master’s degree in Economics from the Hebrew University, and a master’s degree and a Ph.D. in Economics 

from the University of Chicago.  He has been a professor of Economics at the Hebrew University of Jerusalem, Boston University, the 
Central European University, in Budapest, and the New York University Graduate School of Business, a senior advisor to the World Bank, Europe and 
Central Asia region, and the International Monetary Fund, and was a senior researcher at the Center for Latin American Monetary Studies.  From 2001 
to 2002, he was the Deputy Governor and then the Governor of the Central Bank of Argentina, and from 2003 to 2008 he was the director of the Centre 
for Central Banking Studies, and advisor to the Governor, of the Bank of England.  He is currently an independent economic consultant, professor at the 
Universidad de San Andrés in Buenos Aires, and is a director of Inversiones y Representaciones S.A. and Consultants Asset Management, both located 
in Buenos Aires. 

Carlos Bruno 

Mr. Bruno graduated with a degree in architecture from the University of Buenos Aires. He is president and co-founder of the Centro de 
Investigaciones para la Transformación. He has participated in the creation of the Center of International Economy while being a member of the 
Ministry of Foreign Relations. He was the Undersecretary of Economic Integration and Secretary of International Economy Relations from 1984 to 1989 
and was appointed Ambassador V with the Senate’s approval. His areas of expertise are international economic relations and international trade. 

Santiago Carnero 

Mr. Carnero graduated as a certified public accountant from the University of La Plata in Argentina. He has been a professional advisor in 

accounting, taxation and labor matters, and corporate organizational and constitutional matters. He has also served as an external auditor for public and 
private organizations. Since 2004, Mr. Carnero has served as advisor to the Bicameral Commission of Expense Control and Intelligence Activities of the 
National Congress of Argentina. 

Carlos de la Vega 

Mr. de la Vega was director of La Caja ART from 1996 to 2004 and director of Luncheon Tickets from 1991 to 1998. Since April 2003 he has been 
president of the Argentine Chamber of Commerce, a position he also held from 1988 to 1993. He has been a member of our Board of Directors for Class 
D shares since 1993, and until 1996 he was director of Institutional Relations of Ciba-Geigy Argentina. He has been a member of our Audit Committee 
from 1993 to 1997 and from 2004 to the present. 

Matías Eskenazi Storey 

Mr. Eskenazi Storey is Chief Executive Officer of Administradora San Juan S.R.L. and Co-Chief Executive Officer of Petersen Energía S.A. 
(Spain).  He is President of Estacionamientos Buenos Aires S.A. and Vice President of Comercial Latino S.A. and Banco de Santa Cruz S.A.  Mr. Storey 
is alternate member of the Board of Directors of Mantenimientos y Servicios S.A., Banco de San Juan S.A. and Red Link S.A. and member of the Board 
of Directors of Petersen Energía S.A. (Spain), Petersen Energía Pty. Ltd., Petersen Inversiones S.A., Nuevo Banco de Santa Fe S.A., Nuevo Banco de 
Entre Ríos S.A. and Petersen Energía S.A. (Argentina). 

Eduardo Elzstain 

Mr. Elsztain has more than 20 years of experience in the real estate industry. In 1990, he founded Consultores Asset Management, a leading 

portfolio management firm that has been a pioneer investor in Latin America and in  

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other emerging countries. He serves as the chairman of Cresud, a leading agricultural company in Latin America devoted to the operation and formation 
of a valuable portfolio of land and a producer of soybeans, corn, wheat, beef cattle and milk. In addition he is a board member of BrasilAgro – 
Companhia Brasileira de Propriedades Agrícolas, and chairman of IRSA, Argentina’s largest and most diversified real estate company, with interests in 
office buildings, hotels and residential projects. He is also chairman of IRSA’s subsidiary, Alto Palermo S.A., Argentina’s leading shopping center 
company. Mr. Elsztain is vice-chairman of Banco Hipotecario S.A., Argentina’s largest mortgage bank. Mr. Elsztain studied economics at the University 
of Buenos Aires and is a member of the World Economic Forum, the Group of Fifty and Asociación Empresaria Argentina (Argentine Business 
Association), among associations. Moreover, Mr. Elsztain is president of Fundación IRSA, Endeavor Argentina, Hillel Argentina and Museo de los 
Niños Abasto, among others. 

Salvador Font Estrany 

Mr. Font Estrany is a civil engineer. He is currently Energy General Manager of Sacyr Vallehermoso, S.A. in Spain.  He has previously served as 

Commercial Director and Chairman of CAMPSA Red, Managing Director of CEPSA Red, Cepdisa and Dispesa, Chairman of CEPSA Estaciones de 
Servicio, a member of the Executive Committee of CEPSA, and was a Director of CEPSA Lubricantes, CEPSA Gas, Petro Cat, Cepsa Portuguesa and 
Turyocio.  He also previously served as Commercial General Manager and member of the Operating and Executive Committees of Iberdrola. 

Federico Mañero 

Mr. Mañero graduated with a law degree from the San Sebastián Faculty of Law. He is president of Comunicación y Gestión de Entornos, and has 

more than 25 years of experience in managerial and consulting positions for organizations and private, public and political projects. He is an expert in 
strategic positioning and corporate communications, and has an international profile with professional activities in more than 50 countries and strong 
relations in Latin America. He is the founder of various nonprofit projects and organizations like Solidaridad Internacional, Programa de Cooperación 
Iberoamericana en Temas de Juventud (Organismo Iberoamericano de Juventud) and Movimiento por la Paz, el Desarme y la Libertad and is a regular 
collaborator with the Fundación Salvador Allende, Fundación Progreso Global and UNICEF. Mr. Mañero is a native speaker of Spanish and French. 

Fernando Ramírez Mazarredo 

Mr. Ramírez Mazarredo received his degree in Economic and Business Sciences from the University of Madrid and is a certified public 
accountant.  He was Chairman of the Spanish Financial Futures Market (Mercado Español de Futuros Financieros) from April 2004 to June 2005. 

Luis Suárez de Lezo Mantilla 

Mr. Suárez de Lezo Mantilla received his degree in Law from the Universidad Complutense of Madrid and is a State Attorney (on leave) 

specializing in Commercial and Administrative Law. He was Director of Legal Affairs of CAMPSA, and has been in private legal practice, particularly 
in the energy industry. Currently, he is Director of Compañía Logística de Hidrocarburos, S.A. (CLH) and Repsol – Gas Natural LNG, S.L. 

Javier Monzón 

Mr. Monzón graduated with a degree in economics from the Complutense University of Madrid. He is chairman and CEO of Indra. He has a 
finance and management background. He has acted as corporate banking director of Caja Madrid, CFO and president of Telefónica International, 
executive vice president and member of the executive committee of Telefónica, worldwide partner of Arthur Andersen, managing partner of Corporate 
Finance Consulting Services and president of Alpha Corporate in Arthur Andersen Spain. He is a member of the boards of other companies, foundations 
and entrepreneurial organizations, such as our company, ACS and the American Chamber of Commerce. 

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Mario E. Vázquez 

Mr. Vázquez graduated as a certified public accountant from the University of Buenos Aires. He has been a professor of auditing at the 

Economics School of the University of Buenos Aires. Mr. Vázquez has acted as CEO of Grupo Telefónica in Argentina and was a member of the Board 
of Telefónica, S.A. from 2000 to 2006. Mr. Vázquez is currently a member of the Board of Telefónica Internacional, S.A. (Spain) and of Telefónica 
Chile. He is also a member of the boards of directors or a statutory auditor of several companies (including Telefónica de Argentina S.A., Telefónica 
Holding de Argentina S.A., YPF S.A., Santander Río Seguros, Indra, Universia and Sheraton Hotels). He is a member of the board of F.I.E.L. (Latin 
American Foundation for Economic Investigation), Fundación Leer, the Argentine Chamber of Commerce, IDEA, CARI (Consejo Argentino para las 
Relaciones Internacionales) and Fundación Carolina. Mr. Vázquez was also partner and general director of Arthur Andersen (Pistrelli, Díaz y Asociados 
y Andersen Consulting – Accenture) for more than 20 years until his retirement in 1993. 

Alejandro Quiroga López 

Mr. Quiroga López graduated with a law degree from the University of Buenos Aires School of Law. Since 2001, he has been our general counsel 

and secretary of our Board of Directors. He was a partner at the law firm Nicholson & Cano from 1986 to 1997, a foreign associate at Davis Polk & 
Wardwell in 2000, and Undersecretary of Banking and Insurance at the Ministry of Economy of Argentina from 1997 to 1999. He was professor of 
banking and commercial law at the University of Cema. He was a member of the Executive Board of the University of Buenos Aires School of Law. He 
is also a graduate of the Wharton Advanced Management Program. 

Gonzalo López Fanjul 

Mr. López Fanjul graduated as a mining engineer from the University of Oviedo. He is a deputy director and director of certain companies in which 

we participate. He was previously our director of Exploration and Production. 

Alfredo Pochintesta 

Mr. Pochintesta has received degrees in public accounting and administration from the University of Buenos Aires. Mr. Pochintesta worked as a 

planning and administration manager in Pluspetrol S.A., planning manager in Petrosur S.A. and senior auditor at PriceWaterhouseCoopers. He worked 
for Astra for more than 18 years as CFO and since 1990 as head of the Gas and Electricity Division. Mr. Pochintesta joined Repsol YPF in 1999 when 
Repsol YPF purchased Astra. He was in charge of the LPG business for Latin America from 1999 to January 2005, when he was appointed marketing 
director. He also serves as director of a number of other companies. 

Rafael López Revuelta 

Mr. López Revuelta graduated as a chemical engineer from the Complutense University of Madrid and earned a master’s degree in business 

administration from IESE, Madrid. He has been a director in different areas of Repsol YPF since 1988. 

Tomás García Blanco 

Mr. García Blanco graduated with a degree in mining engineering from Oviedo University, a certificate in petroleum engineering from Oil & Gas 

Consultants International in Tulsa, Oklahoma and an IMD Managing Corporate Resources degree from Laussane University. He has developed his 
Exploration and Production career internationally in Spain, the United States, Egypt, Libya, Venezuela and Argentina. Mr. García Blanco has held 
several positions in Repsol YPF, including field engineer, reservoir engineer, production engineer, development manager, production manager, 
operations manager, business unit manager, director of technical staff and, since August 2006, he has been Director of Exploration and Production for 
Argentina and Bolivia. 

Fabián Falco 

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Mr. Falco has been our Director of Communication and External Relations since 2001. He was director of external relations and corporate 

marketing of Aguas Argentinas and director of external communications and press of Bridas S.A. 

Walter Forwood 

Mr. Forwood graduated with a bachelor’s degree in economics from the Universidad Argentina de la Empresa and a master of science in finance 

from Florida International University. He began his career at Bank of Boston and Continental Bank, Argentina. Mr. Forwood joined Industrias 
Metalúrgicas Pescarmona in 1993 and subsequently served as CFO of Corporación Impsa. In 1997, he joined Cisneros Television Group and held the 
positions of CFO of Cisneros Television Group and Ibero-American Media Partners, vice chairman of Imagen Satelital and COO of El Sitio Inc. In 
2001, Mr. Forwood became CFO of Verizon Communications Inc., chairman and CEO of CTI, CFO of Telefónica de Puerto Rico, general manager of 
Verizon Wireless of Puerto Rico, and COO of Telefónica de Puerto Rico. Mr. Forwood is currently our Chief Financial Officer and an alternate director. 

Fernando Dasso 

Mr. Dasso graduated with a labor relations degree from the University of Buenos Aires. In 1993, he joined our company and has held several 
positions within our company ever since. In 2006, he was appointed Director of Human Resources in the Exploration and Production business unit for 
Argentina, Bolivia and Brazil. Since June 2007, he has been our Director of Human Resources. 

Carlos Jiménez López 

Mr. Jiménez graduated with a degree in chemical engineering from the Complutense University of Madrid, Spain and received a master’s degree in 

business administration and financial management from the Polytechnic University of Madrid. In addition, he completed the Program of Management 
Development (Programa de Desarrollo Directivo) at the Institut Européen d’Administration des Affaires (INSEAD). Mr. Jiménez began his professional 
career as a Process and Startup Engineer in 1980 with a leading engineering and construction company, while also being employed as Professor at the 
Complutense University of Madrid. In 1986 he joined Petronor, S.A., part of the Repsol YPF group, as head of the Department of Technical Studies in 
the area of commercial planning and coordination. In 1999, he became Director of Refining in the area of strategic planning and development of Repsol 
YPF. During the period 2002 to 2004, he was Director of the Refining and Marketing business unit in Brazil. From 2004 to 2007, he was Technical 
Director of Refining and Logistics. In addition, Mr. Jiménez is a member of the boards of directors of Oiltanking-Ebytem S.A., Oldelval S.A. and OTA 
and OTC S.A. He is also the President of the Refinery Committee of ARPEL. Currently, Mr. Jimenez is our Director of Management Control. 

Carlos Alfonsi 

Mr. Carlos Alberto Alfonsi graduated with a chemistry degree from Universidad Tecnológica of Mendoza, Argentina, an IMD Managing Corporate 

Resources degree from Lausanne University and studied at the Massachusetts Institute of Technology. In 1987, he joined our company and has held 
several positions in our company and Repsol YPF, including operations manager, director of the La Plata refinery, operational planning director, trading 
and transport director for Latin America, refinery and marketing director in Peru, country manager for Peru, and R&M for Peru, Chile, Ecuador and 
Brazil. Since January 2008, he has been our company’s Director of Refining and Logistic operations. 

Ezequiel Eskenazi Storey 

Mr. Eskenazi Storey serves as vice president of Agro Franca S.A. He is also an alternate member of the board of directors of Los Boulevares S.A. 

and Petersen Inversiones S.A., and a member of the board of directors of Petersen Thiele Y Cruz S.A., Santa Sylvia S.A. and Agro Franca S.A. 

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Mauro Renato José Dacomo 

Mr. Dacomo graduated with a law degree from the University of Buenos Aires, and is Partner at ABD law firm.  He is also President of Inwell S.A. 

and Los Boulevares S.A.  Mr. Dacomo serves as General counsel to Fundación Banco de Santa Cruz S.A., Fundación Nuevo Banco de Santa Fe S.A. 
and Fundación Nuevo Banco de Entre Ríos S.A.  He is an alternate member of the Board of Directors of Petersen Energía S.A. (Argentina), Arroyo 
Lindo S.A. and Nuevo Banco de Santa Fe S.A., and member of the Board of Directors of Inwell S.A. and Nuevo Banco de Entre Ríos S.A.  Mr. Dacomo 
is also Director and Secretary of Petersen Energia S.A. (Spain). 

Ignacio Cruz Morán 

Mr. Morán has received degrees in public accounting from the University of Buenos Aires. He is an alternate member of the Board of Directors of 
Banco de Santa Cruz S.A., Nuevo Banco de Santa Fe S.A. and Red Link S.A. and member of the Board of Directors of Banco de San Juan S.A., Nuevo 
Banco de Entre Ríos S.A., ACH S.A. and Petersen Energia S.A. (Spain). 

Eduardo Angel Garrote 

Mr. Garrote graduated with a degree in architecture from the University of Buenos Aires. He is a member of the Board of Directors of Nuevo 

Banco de Santa Fe S.A., and alternate member of the Board of Directors of Nuevo Banco de Entre Ríos S.A. Mr. Garrote also serves as General 
Manager of Petersen, Thiele y Cruz S.A. 

Board practices 

In accordance with the Argentine Corporations Law, directors have an obligation to perform their duties with loyalty and with the diligence of a 

prudent business person. Directors are jointly and severally liable to us, our shareholders and to third parties for the improper performance of their 
duties, for violating the law or our bylaws or regulations, and for any damage caused by fraud, abuse of authority or gross negligence. Specific duties 
may be assigned to a director by the bylaws, company regulations, or by resolution of the shareholders’ meeting. In such cases, a director’s liability will 
be determined by reference to the performance of such duties. 

Only shareholders, through a shareholders’ meeting may authorize directors to engage in activities in competition with us. Transactions or contracts 

between directors and us in connection with our activities are permitted to the extent they are performed under fair market conditions. Transactions that 
do not comply with the Argentine Corporations Law require prior approval of the Board of Directors or the Supervisory Committee. In addition, these 
transactions must be subsequently approved by the shareholders at a general meeting. If our shareholders do not approve the relevant transaction, the 
directors and members of the Supervisory Committee who approved such transactions are jointly and severally liable for any damages caused to us. 

Any director whose personal interests are adverse to ours shall notify the Board of Directors and the Supervisory Committee and abstain from 

voting on such matters. Otherwise, such director may be held liable to us. 

A director will not be liable if, notwithstanding his presence at the meeting at which a resolution was adopted or his knowledge of such resolution, a 
written record exists of his opposition to such resolution and he reports his opposition to the Supervisory Committee before any complaint against him is 
brought before the Board of Directors, the Supervisory Committee, the shareholders’ meeting, the appropriate governmental agency or the courts. Any 
liability of a director to us terminates upon approval of the director’s actions by the shareholders at a general meeting, provided that shareholders 
representing at least 5% of our capital stock do not object and provided further that such liability does not result from a violation of the law, our bylaws 
or other regulations. 

The Audit Committee 

The Transparency Decree and Resolutions No. 400/02 and No. 402/02 of the CNV, require that Argentine public companies appoint an audit 
committee (comité de auditoria) composed of at least three members of the Board of Directors. The bylaws or the regulations of the Board of Directors 
must set forth the composition and regulations  

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for the operation of the Audit Committee. A majority of the members of the Audit Committee must be independent directors. See “—Independence of 
the Members of our Board of Directors and Audit Committee” below. 

Our Audit Committee was created on May 6, 2004. The members of the Audit Committee currently are: president Mario Vázquez, members Mario 

Blejer, Carlos de la Vega, Federico Mañero and Carlos Bruno, and alternate members Javier Monzón and Eduardo Elsztain. 

Mario Vázquez was determined by our Board of Directors to be an “Audit Committee Financial Expert” pursuant to the rules and regulations of the 

SEC. 

Executive directors may not sit on the Audit Committee. 

Our Audit Committee, among other things: 

•  periodically inspects the preparation of our financial and economic information;

•  reviews  and  opines  with  respect  to  the  Board  of  Directors’  proposals  regarding  the  designation  of  the  external  auditors and  the  renewal, 

termination and conditions of their appointment; 

•  evaluates internal and external audit work, monitors our relationship with the external auditors, and assures their independence;

•  provides appropriate disclosure regarding operations in which there exists a conflict of interest with members of the corporate committees or

controlling shareholders; 

•  opines on the reasonability of the proposals by the Board of Directors for fees and stock option plans of the directors and administrators;

•  verifies compliance with applicable national or international regulations in matters related to behavior in the stock markets; and

•  ensures that the internal Code of Ethics complies with normative demands and is adequate.

Activities of the audit committee 

The Audit Committee, which pursuant to its regulations meets as many times as needed and at least once every quarter, held eight meetings 

between May 2007 and March 2008. 

Performing its basic function of supporting the Board of Directors in its oversight duties, the Audit Committee periodically reviews economic and 

financial information relating to us, supervises the internal financial control systems and oversees the independence of the external auditors. 

Economic and financial information 

With the help of the Chief Financial Officer and considering the work performed by our external and internal auditors, the Audit Committee 

analyzes the consolidated annual and quarterly financial statements before they are submitted to the Board of Directors. 

In addition, because our shares are traded on the NYSE, pursuant to U.S. law we must include our annual financial information in an annual report 

on Form 20-F, which must be filed with the SEC. The Audit Committee reviews such annual report before it is submitted to the SEC. 

Oversight of the internal control system 

To supervise the internal financial control systems and ensure that they are sufficient, appropriate and efficient, the Audit Committee oversees the 

progress of the annual internal audit, which is aimed at identifying our critical risks. 

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Throughout each year, the Audit Committee is informed by our internal audit department of the most relevant facts and recommendations arising 

out of its work, and the status of the recommendations issued in prior years. 

We have aligned the internal control system for financial reporting with the requirements established by Section 404 of the Sarbanes-Oxley Act, a 

process supervised by the Audit Committee. These regulations require that, along with the annual audit, a report must be presented from our 
management relating to the design, maintenance and periodic evaluation of the internal control system for financial reporting, accompanied by a report 
from our external auditor. Several of our departments are involved in this activity, including the internal audit department. Our external auditor reported 
on our internal control system for financial reporting as of December 31, 2007. 

Relations with the external auditors 

The Audit Committee maintains a close relationship with the external auditors, allowing it to make a detailed analysis of the relevant aspects of the 

audit of financial statements and to obtain detailed information on the planning and progress of the work. 

The Audit Committee also evaluates the services provided by our external auditors, determines whether the condition of independence of the 

external auditors, as required by applicable law, is met and monitors the performance of external auditors to ensure that it is satisfactory. 

The shareholders at a meeting held on April 13, 2007 approved the designation of Deloitte & Co. S.R.L. as external auditors of the financial 
statements for the year ended December 31, 2007. As of December 31, 2007, and as a consequence of the evaluation process described in the paragraph 
above, the Audit Committee had no objections to the designation of Deloitte & Co. S.R.L. as our external auditors of the financial statements for the year 
ending December 31, 2008. The shareholders’ meeting to be held on April 24, 2008 will approve the designation of the external auditors for the year 
ending December 31, 2008. 

Independence of the Members of our Board of Directors and Audit Committee 

Pursuant to CNV regulations, a director is not considered independent when such director (i) owns at least a 35% equity interest in a company, or a 

lesser interest if the director has the right to appoint one or more directors of the company, which we refer to as a “Significant Participation,” or has a 
Significant Participation in another company that in turn has a Significant Participation in the company or a significant influence on the company 
(“significant influence” is defined by Argentine GAAP); (ii) is a member of the Board of Directors of, or depends on, shareholders, or is otherwise 
related to shareholders, who have a Significant Participation in the company or another company in which these shareholders have a direct or indirect 
Significant Participation or significant influence; (iii) is or has been in the previous three years an employee of the company; (iv) has a professional 
relationship with, or is a member of a company that maintains professional relationships with, or receives remuneration (other than that received in 
consideration of his performance as a director) from the company or any of its shareholders who has a direct or indirect Significant Participation in or 
significant influence on the company, or with a third-party company that has a direct or indirect Significant Participation or a significant influence; (v) 
directly or indirectly sells or provides goods or services to the company or to any of its shareholders who has a direct or indirect Significant Participation 
in or significant influence on the company for an amount exceeding his remuneration as a member of the Board of Directors or audit committee; or (vi) 
is the spouse or parent (up to second grade of affinity or up to fourth grade of consanguinity) of persons who, if they were members of the Board of 
Directors or Audit Committee, would not be independent, according to the above-listed rules. 

As of the date of this annual report, we believe that Messrs. Carlos Bruno, Carlos de la Vega, Eduardo Elsztain, Federico Mañero, Javier Monzón, 

Mario Vázquez and Mario Blejer qualify as independent members of our Board of Directors under the above-described criteria. 

Disclosure Committee 

In February 2003, we created a Disclosure Committee to: 

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•    monitor the overall compliance with regulations and principles of conduct of voluntary application, especially in relation to listed companies 

and their corporate governance; 

•    direct, establish and maintain procedures for the preparation of accounting and financial information to be approved and filed by us or which is 

generally released to the markets; 

•    direct, establish and maintain internal control systems that are adequate and efficient to ensure that our financial statements included in annual 
and quarterly reports, as well as any accounting and financial information to be approved and filed by us, are accurate, reliable and clear;

•    identify significant risks to our businesses and activities that may affect the accounting and financial information to be approved and filed;

•    assume the activities that, according to U.S. laws and SEC regulations, are applicable to us and may be assumed by disclosure committees or 
other internal committees of a similar nature, especially those activities relating to the SEC regulations dated August 29, 2002 (“Certification 
of Disclosure in Companies’ Quarterly and Prospectus” —SEC Release number 33-8124), in relation to the support for the certifications by 
our Chief Executive Officer and Chief Financial Officer as to the existence and maintenance by us of adequate procedures and controls for the 
generation of the information to be included in its annual reports on Form 20-F, and other information of a financial nature;

•    take on activities similar to those stipulated in SEC regulations for a disclosure committee with respect to the existence and maintenance by us 
of adequate procedures and controls for the preparation and content of the information to be included in the annual financial statements, and 
any accounting or financial information to be filed with the CNV and other regulators of the stock markets on which our stock is traded; and

•    formulate proposals for an internal code of conduct on the stock markets that follow applicable rules and regulations or any other standards 

deemed appropriate. 

In addition, the Disclosure Committee reviews and supervises our procedures for the preparation and filing of: 

•    official notices to the SEC, the Argentine stock market authorities and other regulators of the stock markets on which our stock is traded;

•    interim financial reports; 

•    press releases containing financial data on results, earnings, large acquisitions, divestitures or any other information relevant to the 

shareholders; 

•    general communications to the shareholders; and

•    presentations to analysts, investors, rating agencies and lending institutions.

The Disclosure Committee is composed of certain of our executive officers, some of whom are also members of our Board of Directors. 

The Disclosure Committee is currently composed of the following people: 

Name 
Sebastián Eskenazi 
Carlos Alfonsi 
Fernando Dasso 
Fabián Falco 
Walter Forwood 
Tomás García Blanco 

Position 
  Chief Executive Officer
  Director Refining and Logistics
  Director of Human Resources
  Director of Communication and External Relations
  Chief Financial Officer
  Director Exploration and Production

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Name 
Carlos Jiménez  
Gabriel Leiva 
Rafael López Revuelta 
Alfredo Pochintesta 
Alejandro Quiroga López 
Aquiles Rattia 
Juan Carlos Rodríguez González 

Position 
  Director Management Control
  Director Accounting and Administration
  Director Chemicals
  Director of Marketing
  General Counsel 
  Director of Reserves Control
  Director of Internal Audit

Executive Officers 

The President of the Board of Directors, who, according to our bylaws, must be a Class D director, is elected by the Board of Directors to serve for 
a two-year term, but not to exceed his term as director. All other officers serve at the discretion of the Board of Directors and may be terminated at any 
time without notice. 

All of our current senior executive officers are either members or alternate members of the Board of Directors. 

Share Ownership of Executive Officers 

None of our executive officers owns any of our shares. 

Compliance with NYSE Listing Standards on Corporate Governance 

On November 4, 2003, the SEC approved rules proposed by the NYSE intended to strengthen corporate governance standards for listed companies. 

In accordance with the NYSE corporate governance rules, as of July 31, 2005, all members of the Audit Committee were required to be 
independent. Independence is determined in accordance with highly detailed rules promulgated by the NYSE and SEC. Each of the members of our 
Audit Committee was determined to be independent in accordance with the applicable NYSE and SEC rules. 

Significant differences between our corporate governance practices and those required by NYSE listing standards 

Non-U.S., NYSE-listed companies may, in general, follow their home country corporate governance practices in lieu of most of the NYSE 
corporate governance requirements. The NYSE rules, however, require that non-U.S. companies disclose any significant ways in which their specific 
corporate governance practices differ from U.S. companies under the NYSE listing standards. 

The following is a summary of the significant differences between our corporate governance practices and those applicable to U.S. companies 

under the NYSE listing standards. Because more than 50% of our voting stock is held by another company, Repsol YPF, we would not be required to 
comply with the following NYSE corporate governance requirements even if we were a U.S. company: (i) having a majority of independent directors, 
(ii) corporate governance committee requirements, and (iii) compensation committee requirements. 

Independence of the directors on the Board of Directors 

In accordance with the NYSE corporate governance rules, a majority of the Board of Directors must be composed of independent directors, whose 
independence is determined in accordance with highly detailed rules promulgated by the NYSE. Other than as described under “—Independence of the 
Members of our Board of Directors and Audit Committee,” Argentine law does not regulate the independence of directors nor criteria for determining 
independence. 

Compensation and nomination committees 

In accordance with the NYSE corporate governance rules, all U.S. companies listed on the NYSE must have a compensation committee and a 
nominations committee and all members of such committees must be independent in accordance with highly detailed rules promulgated by the NYSE. 
Under Argentine law, these committees are not required. 

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Separate meetings for non-management directors 

In accordance with NYSE corporate governance rules, independent directors must meet periodically outside of the presence of the executive 
directors. Under Argentine law, this practice is not required and as such, the independent directors on our Board of Directors do not meet outside of the 
presence of the other directors. 

Code of Ethics 

We have adopted a code of ethics applicable to the Board of Directors and all employees. Since its effective date on August 15, 2003, we have not 

waived compliance with or amended the code of ethics. 

Compensation of Directors and Officers 

Argentine law provides that the aggregate annual compensation paid to the members of the Board of Directors (including those directors acting in 
an executive capacity) with respect to a fiscal year may not exceed 5% of net income for such year if YPF is not paying dividends in respect of such net 
income, which percentage is increased up to 25% of net income based on the amount of dividends, if any, are paid. The compensation of the president 
and other directors acting in an executive capacity, together with the compensation of all other directors, requires the ratification of an ordinary general 
shareholders’ meeting as provided by Argentine law. The compensation of the members of the Supervisory Committee is determined by the shareholders 
at the ordinary shareholders’ meeting. 

For the period ended December 31, 2007 the aggregate compensation accrued or paid to the members of the Board of Directors and YPF’s 

executive officers for services in all capacities was Ps.34.6 million. 

During 2007, YPF’s performance-based compensation programs included a bonus plan for approximately 4,900 employees. 

The bonus plan provides for cash to be paid to the participants based on a measurable and specific set of objectives under Repsol YPF’s 

Management by Objectives program and the results of the review of individual performance. All of the participants are YPF employees included at a 
specific salary level. The participation of each eligible employee in the bonus plan ranges from 15% to 55% of such employee’s annual base salary. 
Bonus percentages are fixed by the president of Repsol YPF with the approval of Repsol YPF’s Compensation Committee at the beginning of each 
calendar year. The total amount of bonuses awarded under the bonus plan cannot exceed 90% of the individual maximum participation and will be 
linked to the company’s net cash flow. 

In 2007, Ps.2.0 million was accrued for eligible members of the Board of Directors and officers pursuant to the Selected Deferred Compensation 

Plan. 

None of our non-executive directors has any service contracts with YPF. 

Supervisory Committee 

The Supervisory Committee is responsible for overseeing management’s compliance with the Argentine Corporations Law, the bylaws and 
regulations (if any), and shareholders’ resolutions. The functions of the Supervisory Committee include, among others, attending all meetings of the 
Board of Directors, preparing a report of the financial statements for our shareholders, attending shareholders’ meetings and providing information upon 
request to holders of at least 2% of our capital stock. 

The bylaws provide for a Supervisory Committee consisting of three to five members and three to five alternate members, elected to one-year 
terms. The Class A shares are entitled to elect one member and one alternate member of the Committee so long as one share of such class remains 
outstanding. The holders of Class D shares elect up to four members and up to four alternates. Under the bylaws, meetings of the Supervisory Committee 
may be called by any member. The meeting requires the presence of all members, and a majority vote of the members in order to make a decision. The 
members and alternate members of the Supervisory Committee are not members of our Board of Directors. The role of our Supervisory Committee is 
distinct from that of the Audit Committee. See “—The Audit  

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Committee.” For the year 2007, the aggregate compensation paid to the members of the Supervisory Committee was Ps.945,000. 

The current members of the Supervisory Committee, the year in which they were appointed and the year their current term expires are as follows: 

Name 
Silvana Rosa Lagrosa 
Juan A. Gelly y Obes 
Israel Lipsich 
Santiago C. Lazzati 
Carlos María Tombeur 
Orlando F. Pelaya 
Arturo F. Alonso Peña 
Oscar Oroná 
Edgardo A. Sanguineti 
Rubén Laizerowitch 

Silvana Rosa Lagrosa 

Class of Shares 
Represented
A
D
D
D
D
A
D
D
D
D

Member 
Since
2007
2005
2008
2005
2008
2006
2007
2008
2008
2008

Term 
Expires
2008
2008
2009
2008
2009
2008
2008
2009
2009
2009

Mrs. Lagrosa graduated as a certified public accountant from the University of Buenos Aires. She has been a member of the Sindicatura General de 

la Nación (SIGEN) since 2000, for which she acts as statutory auditor of our company, Lotería Nacional S.E., Ferrocarril General Belgrano S.A., 
Encotesa e.l. and LAFSA. 

Juan A. Gelly y Obes 

Mr. Gelly y Obes graduated as a certified public accountant from the Belgrano University of Buenos Aires. He is a partner of the consulting firm 

Otero Cano & Asociados-Accountants, and he is a consulting accountant in legal matters to the board of directors of the Argentine Republic Central 
Bank. Previously, Mr. Gelly y Obes was a member of the statutory audit committees of Aerolineas Argentinas S.A. and Agritech Inversora S.A. 

Israel Lipsich 

Mr. Lipsich graduated as a certified public accountant from the University of Buenos Aires. He is currently a member of the Supervisory 

Committee of Banco de San Juan S.A., Banco de Santa Cruz S.A., Nuevo Banco de Santa Fe S.A., Nuevo Banco de Entre Ríos S.A., Petersen Thiele y 
Cruz  S.A., Santa Sylvia S.A., Turfmax S.A. y Serra Lima S.A. 

Santiago C. Lazzati 

Mr. Lazzati graduated as a certified public accountant from the University of Buenos Aires. He was a partner of Arthur Andersen from 1974 until 

he retired in 1993 and was the head of the Audit and Business Advisory Division from 1975 to 1987 and Practice Director from 1987 until his 
retirement. He is currently working as associate director in Deloitte in Argentina and other Latin American countries in consulting, especially in human 
capital services. He is a business consultant, specializing in topics related to management and human behavior. He is the author of fifteen books and 
many articles on accounting, auditing and business administration. Additionally, Mr. Lazzatti is assessor of the International Criminal Court in the 
Hague of all matters concerning the organization of the Office of the Prosecutor in charge, Dr. Luis Moreno Ocampo. Mr. Lazzati is the statutory auditor 
of Sheraton Hotels and Telefónica de Argentina and a full-time business administration professor of the Universidad Católica Argentina. 

Carlos María Tombeur 

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Mr. Tombeur graduated from the University of Buenos Aires, School of Law and Social Sciences, with a law degree in 1976. Previously, he was 

Professor of Economic Law in the School of Economic Sciences and of Commercial Law in the School of Law, both at the University of Buenos Aires. 
Mr. Tombeur was also Professor of Economic Law in the Master’s Degree program in Public Policy at the University Di Tella. From 1999 to 2005 he 
served as member of the Board of Directors of YPF S.A. Mr. Tombeur was appointed controller at Seguro de Depósitos S.A. (SEDESA) (Insurance 
Deposit Company) by the Central Bank for the period 1997-2001. He also served as legal undersecretary of the Ministry of Economy and Public Works 
and Services from 1992 until 1996 and was member of the Board of Directors of the Central Bank of the Argentine Republic, 1991-1992. Mr. Tombeur 
was Partner of the firm Caride Fitte & Tombeur from 1977 until 1991. Mr. Tombeur is currently Partner with the firm Severgnini Robiola Grinberg & 
Larrechea. He is also a member of the Bar Association of the City of Buenos Aires and the International Bar Association. Mr. Tombeur is currently the 
President of the Board of Directors at EMC Computer Systems Argentina S.A. and Williams Lea Argentina S.A. 

Orlando F. Pelaya 

Mr. Pelaya graduated as a certified public accountant from the University of Lomas de Zamora in Argentina. He is a member of Sindicatura 

General de la Nación (SIGEN), for which he acts as statutory auditor of Educ.ar S.E., an educational web portal (a state company); INdeR S.E. (e.l.), the 
National Reinsurance Institute (a state company) and Interbaires S.A. In addition, he is an alternate statutory auditor of AySA S.A., an Argentine water 
company; CAMMESA, an electricity administration company; EDCADASSA S.A, a cargo airline; L.A.F.S.A., the Argentine federal airline; LT 10, 
administration radio company, and our company. He is also a control coordinator of other state companies. 

Arturo F. Alonso Peña 

Mr. Peña received his law degree from the University of Buenos Aires School of Law in 1973. He was statutory auditor of Banco Hipotecario 

Nacional from 1995 to 2001. He was partner of M&M Bomchil law firm from 1980 to 1985, Chief of the trademark department of the National 
Intellectual Property Registry in 1979, and secretary of the Court of First Instance in commercial matters of the City of Buenos Aires from 1974 to 1978. 
He is currently an attorney with Severgnini, Robiola, Grinberg & Larrechea. 

Oscar Alberto Oroná 

Mr. Oroná graduated from the Belgrano University of Buenos Aires in 1975. He is a Consultant Lawyer of Cassagne Abogados Law Firm. In 1991 

Mr. Oroná completed the Petroleum Managment Certificate Program in Boston, Massachusetts.  He previously served as a member of the Board of 
Directors of Astra Compañía Argentina de Petróleo S.A., Terminal Marítima Patagónica S.A., Pluspetrol Energy S.A., Central Dock Sud S.A., Inversora 
Dock Sud S.A., Empresa Petrolera Andina S.A. (Bolivia), Apex Petroleum Inc., Gas Argentino S.A., Metrogas S.A., Petroken Petroquimica Ensenada 
S.A. and Empresa de Distribución Eléctrica de Entre Ríos S.A.   Mr. Oroná was also the Second Vice President of the Cámara de Sociedades Anónimas 
and President of the Legal Comité of the Camara de la Industria del Petróleo and of San Isidro Golf Club S.A.  He is a member of the Comisión 
Fiscalizadora of Oleoductos del Valle S.A. and Metrogas S.A., as well as the Colegio de Abogados de Buenos Aires, the American Bar Association, the 
Asociación de Derecho de la Energía, the Instituto Argentino del Petróleo y Gas IAPG and the Association of International Petroleum Negociators 
AIPN. 

Edgardo A. Sanguineti 

Mr. Sanguineti graduated from the University of Buenos Aires with a degree in Business Administration and holds a doctorate in Economic 

Sciences from the same university, where he was a professor in the Economic Sciences doctoral program.  He is a Certified Public Accountant and 
Partner of Lazzati y Sanguineti – Management Consulting Firm.  Mr. Sanguineti is a member of the Statutory Audit Committee of Telefónica de 
Argentina, Telefónica Holding de Argentina S.A., Televisión Federal S.A.-Telefé, Atlántida Comunicaciones S.A. and Telefónica Media Argentina 
S.A., among other companies. 

Rubén Laizerowitch 

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Rubén Laizerowitch received his law degree from the University of Buenos Aires. He is an alternate member of Board of Directors of Petersen, 
Thiele y Cruz S.A., Estacionamientos Buenos Aires S.A. and INWELL S.A., and is a member of Supervisory Commitee of Nuevo Banco de Santa Fe 
S.A. and Nuevo Banco de Entre Ríos S.A.  He is also an alternate member of the Supervisory Committee of Banco Santa Cruz S.A. 

Employee Matters 

As of December 31, 2007, we had approximately 11,534 employees, including approximately 5,811 employees of the Refining and Marketing 

business segment, approximately 1,848 employees of the Exploration and Production business segment, and approximately 564 employees of the 
Chemical business segment. 

Approximately 51% of our employees are represented by “Federación Sindicatos Unidos Petroleros e Hidrocarburíferos” that negotiates labor 

agreements with us. At the end of 2006, we began new negotiations with other labor unions that resulted in our extending our labor agreements with 
those unions until year 2010. The negotiations also involved economic and social conditions for employees of ours and of third parties that are addressed 
in the labor agreement. We consider our current relations with our workforce to be good. 

As part of its privatization, YPF restructured its internal organization and significantly reduced the number of its employees. YPF reduced its work 

force from over 51,000 employees (including approximately 15,000 personnel under contract) at December 31, 1990 to approximately 7,500 at 
December 31, 1993. YPF paid to the employees affected by these reductions the termination payments required under Argentine labor laws which 
amounted to Ps.686 million. In connection with the reduction in its workforce, YPF has received notice of approximately 1,984 lawsuits brought by 
former employees as of  December 31, 2007. A substantial majority of such suits have been brought by former employees who allege that they received 
insufficient severance payments in connection with their dismissal, the unsettled YPF stocks, according to the “Regime of Participated Property” (this 
regulation was denominated to the sale of employees’ YPF stocks), and various job-related illnesses, injuries, typically seek unspecified relief. The 
outcome of this type of litigation depends on factual issues that vary from case to case, and it is not always feasible to predict the outcome of particular 
cases. 

Based on the number and character of the lawsuits already commenced, however, the estimated likelihood of additional claims in view of the 

number of dismissed employees, applicable statutes of limitations, the legal principles involved in the suits and the financial statement reserves 
previously established. Management does not expect the outcome of these lawsuits to have a material adverse effect on our financial condition or future 
results of operations. 

Maxus (a YPF subsidiary) has a number of trustee noncontributory pension plans covering substantially all full-time employees. The benefits 
provided by these plans are based on the number of years of employment and the compensation earned during those years. This company has other 
noncontributory pension plans for executive officers, selected key employees and former employees of the Maxus Group. The Maxus Energy 
Corporation career average pension plan was frozen effective March 1, 2007. The Maxus Energy Corporation savings plan was amended effective 
March 1, 2007 to include the non-elective component, through which the plan’s sponsor contributes 7.5% of the employees’ annual base salary. Maxus 
also grants benefits for health care, life insurance and other social benefits to some of its employees who retire early. The amounts payable accrue over 
the employee’s years of service. During March 2008, YPF Holdings purchased a group annuity contract from an insurance company to settle the liability 
associated with the benefits under certain of Maxus’ defined benefits plans, with a one-time premium payment of U.S.$115 million. The assumption by 
the insurance company of liability under the plans was effective on March 20, 2008, the date the premium was paid by YPF Holdings. 

We also had approximately 21,500 third-party employees under contract as of December 31, 2007, mostly under contract with large international 

service providers. Although we have policies regarding compliance with labor and social security obligations by its contractors, we are not in a position 
to ensure that contractors’ employees  

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will not initiate legal actions to seek indemnification from us based upon a number of Argentine judicial labor court precedents recognizing joint and 
several liability between the contractor and the entity to which it is supplying services under certain circumstances. 

The following table provides a breakdown of our employees by business units as of December 31, 2007. 

Employees by Business Units 
Exploration & Production 

Domestic 
International 

    Natural Gas & Electricity 
Refining and Marketing 

Domestic 
    OPESSA 
Chemical 
A-Evangelista S.A. 
Corporate and Other 
Total YPF 

The following table provides a breakdown of our employees by geographic locations. 

Employees by geographic location 
Argentina 
USA 

Total YPF 

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1,848
1,748
20
80
5,811
3,027
2,784
564
2,530
781
11,534 

11,514
20

11,534 

  
  
  
 
  
  
  
   
 
 
  
   
 
  
 
 
 
ITEM 7. Major Shareholders and Related Party Transactions 

The following table sets forth information relating to the beneficial ownership of our shares as of the date of this annual report. 

Number of 
shares 
    330,945,294
    58,603,606
3,646,875
11,388
105,630

(%)

84.14%
14.90%
0.93%
< 0.01%
0.03%

Repsol YPF(1) 
Petersen Energía 
Public 
Argentine federal and provincial governments(2) 
Employee fund(3) 
____________ 
(1) 

Share ownership amounts and percentages do not reflect the options granted to certain members of the Eskenazi family, who are affiliates of 
Petersen Energía, by Repsol YPF to purchase up to 10.1% of our capital stock pursuant to the Petersen Options described in further detail 
below. 

(2) 

(3) 

Reflects the ownership of 3,764 Class A shares and 7,624 Class B shares by the Argentine federal government and provincial governments, 
respectively. 

Reflects the ownership of 105,630 Class C shares.

On February 21, 2008, Petersen Energía S.A. (“Petersen Energía”) purchased 58,603,606 of our ADSs, representing 14.9% of our capital stock, 

from Repsol YPF for U.S.$2,235 million (the “Petersen Transaction”). In addition, Repsol YPF also granted certain members of the Eskenazi family, 
who are affiliates of Petersen Energía, options to purchase up to an additional 10.1% of our outstanding capital stock within four years (the “Petersen 
Options”). 

The following are summaries of certain material terms of the agreements entered into by Repsol YPF, Petersen Energía and certain of their 

respective affiliates in connection with the Petersen Transaction and the Petersen Options, as described in Repsol YPF’s public filings. 

Share Purchase Agreement and Related Financing Agreements 

Pursuant to the share purchase agreement, Petersen Energía purchased 58,603,606 ADSs, representing 14.9% of our outstanding capital stock, from 
Repsol YPF for a total purchase price of U.S.$2,235 million, or U.S.$38.13758 per ADS. Such purchase and sale is subject to a post-closing condition of 
certain regulatory antitrust approvals, consents and authorizations being obtained within 12 months from the date of the share purchase agreement. In the 
event that such approvals, consents and authorizations are not obtained, Repsol YPF has agreed with Petersen Energía and the lenders under the senior 
secured term loan facility referred to below to unwind the Petersen Transaction. 

Petersen Energía’s purchase of our securities was financed by the drawdown of U.S.$1,026 million under a senior secured term loan facility 
provided by certain financial institutions, borrowing of U.S.$1,015 million under a seller credit agreement entered into with Repsol YPF and equity 
provided by Petersen Energía’s shareholders. The seller credit agreement matures on February 21, 2018. Principal payments are required to be made at 
certain periodic intervals commencing in 2013 until the maturity date. The loan under the seller credit agreement bears interest at 8.12% per year until 
May 15, 2013, and thereafter at 7.0% per year, and contains other customary terms and provisions. 

Securities purchased by Petersen Energía are pledged as collateral under the senior secured term loan facility and the seller credit agreement. The 

seller credit agreement is subordinated to the senior secured term loan facility. 

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Option Agreements 

Repsol YPF granted certain members of the Eskenazi family, who are affiliates of Petersen Energía, an option to purchase the number of Class D 
shares or ADSs amounting to 0.1% of our capital stock, pursuant to the first option agreement, and an option to purchase an additional number of Class 
D shares or ADSs amounting to 10.0% of our capital stock (collectively, the “Option Shares”), pursuant to the second option agreement, subject to 
certain terms and conditions. The Petersen Options expire on February 21, 2012. The exercise price per Option Share shall be determined in accordance 
with the following formula: (i) U.S.$15 billion multiplied by the consumer price index published monthly by the United States Bureau of Labor Statistics 
for the period from the date of the option agreements through the exercise date, (ii) plus or minus our accumulated results from the date of the option 
agreements through the exercise date (with certain adjustments for taxes paid), determined based on our financial statements for the fiscal years ending 
after the date of the option agreements, (iii) minus dividends paid from the date of the option agreements through the exercise date, (iv) plus or minus 
any changes in our share capital, (v) divided by the number of shares outstanding on the exercise date. 

The beneficiaries of the Petersen Options may only exercise their purchase rights under the first option agreement once and with respect to all of the 

Class D shares or ADSs subject to the agreement. The beneficiaries of the Petersen Options may exercise their purchase rights under the second option 
agreement on one or more occasions during the exercise period of such second option agreement. 

Subject to certain terms and conditions contained in the Petersen Options, Repsol YPF has agreed to provide financing of up to 48% of the exercise 
price required to be paid for the Option Shares purchased by certain members of the Eskenazi family pursuant to the Petersen Options. Repsol YPF has 
also agreed to finance or guarantee the financing of up to 100% of the price that the members of the Eskenazi family would be required to pay to 
purchase shares from other shareholders through a mandatory tender offer as a result of Petersen Energía and its affiliates, including certain members of 
the Eskenazi family, acquiring an interest in our capital stock of greater than 15%. This commitment is limited to a maximum amount equivalent to the 
price necessary to purchase Class D shares or ADSs equal to 0.9% of our capital stock, which corresponds to the percentage of shares that were not 
owned by Repsol YPF prior to the Petersen Transaction. 

The beneficiaries of the Petersen Options agreed that, if they exercise their option under the second option agreement, they will not transfer for a 
period of five years the 10% of our outstanding capital stock that is subject to that agreement, but have not made such an agreement as to the 0.1% of our 
outstanding capital stock that is subject to the first option agreement. 

Shareholders’ Agreement 

Petersen Energía, Repsol YPF and certain affiliates of Repsol YPF entered into a shareholders’ agreement on February 21, 2008 in connection 

with the Petersen Transaction establishing certain rights and obligations in connection with our governance and certain procedures for and limitations on 
transfers of our shares, among other matters. The following is a summary of certain material terms of the shareholders’ agreement based on Repsol 
YPF’s public filings. 

Voting at Shareholders’ Meetings 

Repsol YPF and Petersen Energía have agreed to discuss and reach agreement on their voting with respect to proposals presented at shareholders’ 
meetings involving certain matters, including certain increases or any reductions in our capital (except reductions that are legally required), the merger, 
divestiture or dissolution of our company or certain of our subsidiaries, the divestiture of material assets of our company or certain of our subsidiaries, 
the modification of our bylaws, and the designation or removal of our external auditors, among other matters. In the event that Repsol YPF and Petersen 
Energía cannot reach an agreement on any of these matters, they have agreed to vote against such matters. 

Composition of our Board of Directors 

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Repsol YPF and Petersen Energía have agreed that the composition of our Board of Directors shall reflect a proportional representation of Repsol 
YPF’s and Petersen Energía’s interests in our capital stock, with (i) Repsol YPF retaining the right to appoint the majority of the members of our Board 
of Directors for so long as it holds the majority of our capital stock, and (ii) Petersen Energía having the right to appoint at least five members to our 
Board (or three members in the case that its interest in our outstanding capital stock falls below 10%). 

Appointment of Directors and Officers and Certain Board Decisions 

Repsol YPF and Petersen Energía have agreed that the Chairman of our Board of Directors and our Chief Operating Officer shall be designated by 
Repsol YPF while our Chief Executive Officer will be designated by Petersen Energía. They have agreed that initially Mr. Antonio Brufau will remain 
the Chairman of our Board of Directors, Mr. Sebastián Eskenazi will serve as our Chief Executive Officer, Mr. Antonio Gomis will serve as our Chief 
Operating Officer and Mr. Enrique Eskenazi will serve as a director and Non-Executive Vice President of the Board. When Mr. Enrique Eskenazi ceases 
to be a director, such non-executive vice presidency will remain vacant. 

Certain decisions of our Board of Directors shall require the affirmative vote of the directors representing Repsol YPF and Petersen Energía, 
including any action that results in any of the specific matters discussed under “—Voting at Shareholders’ Meetings” above, the reduction of our direct 
or indirect interest in certain of our subsidiaries, the contracting of debts, guarantees or investments that contractually limit the payment of dividends or 
cause our consolidated debt to EBITDA ratio to reach or exceed 3:1, undertake non-budgeted investments or acquisitions that individually exceed 
U.S.$250 million, and the requesting of the declaration of insolvency or bankruptcy, among other matters. In the event that Repsol YPF and Petersen 
Energía cannot reach an agreement on any of these specific matters, they have agreed to instruct their directors to vote against such matters. 

Lock-Ups and Transfer Restrictions 

Petersen Energía has agreed not to sell any shares of our capital stock for a period of five years, subject to certain exceptions, including the 
condition that Repsol YPF continues to hold at least 35% of our outstanding capital stock. In addition, if our dividend payments are insufficient for 
Petersen Energía to meet its obligations under the senior secured term loan facility, or if Petersen Energía repays the senior secured term loan facility in 
full, Petersen Energía may sell shares of our capital stock, so long as Petersen Energía maintains a minimum interest in our capital stock of between 10% 
and 15% (depending on whether the beneficiaries of the Petersen Options have fully exercised the Petersen Options and excluding certain dilution events 
in respect of capital increases). 

Repsol YPF has agreed to hold at least 50.01% of our capital stock for a period of at least five years, unless Petersen Energía repays the senior 

secured term loan facility in full. Once the senior secured term loan facility has been repaid in full, Repsol YPF has agreed to hold at least 35% of our 
capital stock, so long as Petersen Energía maintains a minimum interest in our capital stock of between 10% and 15% (depending on whether its 
affiliates that are beneficiaries of the Petersen Options have fully exercised the Petersen Options and excluding certain dilution events in respect of 
capital increases), provided that Repsol YPF may sell shares to a purchaser that is a “first-tier” company in the oil and gas industry and agrees to be 
bound by the terms of the shareholders’ agreement. 

After five years: (i) Petersen Energía may transfer its shares without limitation; and (ii) so long as Petersen Energía maintains a minimum interest in 

our capital stock of between 10% and 15% (depending on whether its affiliates that are beneficiaries of the Petersen Options have fully exercised the 
Petersen Options and excluding certain dilution events in respect of capital increases), Repsol YPF must maintain an interest that, combined with 
Petersen Energía’s holdings, amounts to 40% of our outstanding capital stock, subject to certain conditions, provided that Repsol YPF may sell shares to 
a purchaser that is a “first-tier” company in the oil and gas industry and agrees to be bound by the terms of the shareholders’ agreement. 

Tag-Along Rights, Right to Participate in Public Offering and Right of First Refusal 

If Petersen Energía has repaid the senior secured term loan facility in full, when Repsol YPF sells more than 5% of our outstanding capital stock, 

Petersen Energía shall have a pro rata tag-along right with respect to such sale by  

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Repsol YPF. Petersen Energía also has rights to participate, on a pro rata basis, in any public offering of our outstanding capital stock conducted by 
Repsol YPF. 

Additionally, when Repsol YPF or Petersen Energía sells a block of our shares representing greater than 10% of our capital stock, the other party 

shall have a right of first refusal to purchase such shares, subject to certain terms and conditions. 

Acquisition of Certain of Repsol YPF’s Latin American Assets 

Repsol YPF and Petersen Energía have agreed to allow us to evaluate the possible acquisition, at market price, of certain specified Latin American 

assets of Repsol YPF in order to expand and diversify our business. 

Dividends 

Repsol YPF and Petersen Energía have agreed to effect the adoption of a dividend policy under which we would distribute 90% of our net income 

as dividends, starting with our net income for 2007. They have also agreed to vote in favor of requiring us to distribute an additional dividend of 
U.S.$850 million, of which half will be paid in 2008 and half will be paid in 2009. 

Tender Offer by Petersen Energía 

Repsol YPF has agreed not to participate in the tender offer for our shares that Petersen Energía or its affiliates will be required to make if they 

acquire 15% or more of our outstanding capital stock (as a result of its exercise of one of the Petersen Options, or otherwise). 

Duration and Termination 

The shareholders’ agreement shall remain in effect during our existence, but is subject to immediate termination if Repsol YPF’s holdings of our 

capital stock fall below 12.5% or Petersen Energía’s holdings of our capital stock fall below 10%. The shareholders’ agreement is also subject to 
termination if there are certain defaults under the shareholders’ agreement, or if, within thirty days of the bankruptcy of either party, the bankrupt party 
cannot provide a sufficient guaranty to the other party. 

Registration Rights and Related Agreements 

Under the terms of the registration rights agreement between us, Repsol YPF and the financial institutions providing the senior secured term loan 
facility, we have agreed to file a resale shelf registration statement under the Securities Act with respect to the ADSs sold in the Petersen Transaction, 
have it declared effective by the SEC, and keep it continuously effective until certain specified conditions have been met. On February 20, 2008, we 
filed such shelf registration statement on Form F-3 with the SEC. Upon any acceleration of the senior secured term loan facility following the occurrence 
and continuation of an event of default under such facility, Credit Suisse, London Branch, the administrative agent acting on behalf of the lenders under 
the senior secured term loan facility as holders of such pledged securities, may sell such securities under the shelf registration statement after giving us 
notice, provided that we may suspend the use of the registration statement upon the occurrence of certain specified events. Such securities and the 
associated registration rights may be transferred by any holder. 

In the event that we fail to keep a continuously effective resale shelf registration statement and an acceleration of the senior secured term loan 
facility following an occurrence and continuation of an event of default under such facility occurs, we are required to pay certain specified damages to 
the holders of the securities required to be registered. The registration rights agreement provides that the selling shareholders and we will indemnify each 
other and our and their respective directors, officers, agents, employees and controlling persons against specific liabilities in connection with the offer 
and sale of the ADSs, including liabilities under the Securities Act, or will be entitled to contribution in connection with those liabilities. In addition, 
Repsol YPF and Petersen Energía PTY Ltd., the parent holding company of Petersen Energía, S.A., have agreed in a separate agreement to indemnify us 
against certain specific losses resulting from our agreement to indemnify the selling shareholders and their directors, officers and controlling persons 
pursuant to the registration rights agreement (excluding losses resulting from a final judgment  

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determining the existence of a material misstatement or omission of fact contained in our resale shelf registration statement or a prospectus included 
therein, or a settlement based on such claims). Repsol YPF or Petersen Energía S.A. will pay all of our expenses incidental to the registration, offering 
and sale of the ADSs to the public (subject to the caps and limitations set forth in the registration rights agreement), and each selling shareholder will be 
responsible for payment of commissions, concessions, fees and discounts of underwriters, broker-dealers and agents. 

We have also entered into a separate registration rights agreement with respect to the Option Shares, with terms and conditions that are substantially 

similar to those contained in the registration rights agreement entered into with respect to the ADSs sold in the Petersen Transaction. 

Related Party Transactions 

All material transactions and balances with related parties are set forth in Note 7 to the Audited Consolidated Financial Statements. The principal 
such transactions are short-term intercompany loans granted by us at market rates of interest (which, net of loans collected, amounted to Ps.1,317 million 
in 2007), our sales of refined and other products to certain affiliates (which amounted to Ps.2,769 million in 2007), and our purchase of petroleum and 
other products that we do not produce ourselves from certain affiliates (which amounted to Ps.1,164 million in 2007). The prices of the transactions with 
related parties approximate the amounts charged by and/or to us by unrelated third parties. 

In addition, Repsol YPF and Petersen Energía PTY Ltd., the parent holding company of Petersen Energía, have agreed to indemnify us against 
certain specific losses resulting from our agreement to indemnify the selling shareholders and their directors, officers and controlling persons pursuant to 
the registration rights agreements we have entered into in connection with the Petersen Transaction (excluding losses resulting from a final judgment 
determining the existence of a material misstatement or omission of fact contained in our resale shelf registration statement or a prospectus included 
therein, or a settlement based on such claims). Repsol YPF or Petersen Energía will pay all of our expenses incidental to the registration, offering and 
sale of the securities registered hereby to the public. See “Item 7. Major Shareholders and Related Party Transactions—Registration Rights and Related 
Agreements.” 

For an organizational chart demonstrating our organizational structure, including our interests in our principal affiliates, see “Item 4. Information on 

the Company—Overview.” 

Argentine Law Concerning Related Party Transactions 

Section 73 of the Transparency Decree provides that before a company whose shares are listed in Argentina may enter into an act or contract 
involving a “significant amount” with a related party or parties, such company must obtain approval from its board of directors, and obtain an opinion, 
prior to such board approval, from its audit committee or from two independent valuation firms that states that the terms of the transaction are consistent 
with those that could be obtained on an arm’s-length basis. 

For the purpose of Section 73 of the Transparency Decree, as amended by Decree No. 1020/03, “significant amount” means an amount that exceeds 

1% of the issuer’s net worth as reflected in the latest approved financial statements, provided this amount exceeds Ps.300,000. For purposes of the 
Transparency Decree, “related party” means (i) directors, members of the supervisory committee, managers; (ii) the persons or entities that control or 
hold a significant participation in the company or in its controlling shareholder (at least 35% of its capital stock, or a lesser amount when they have the 
right to appoint one or more directors, or have other shareholder agreements related to the management of the company or its controlling shareholder); 
(iii) any other company under common control; (iv) direct relatives of the persons mentioned in (i) and (ii); or (v) companies in which the persons 
referred to in (i) to (iv) hold directly or indirectly significant participations. 

The acts or contracts referred to above, immediately after being approved by the board of directors, shall be disclosed to the CNV, making express 
indication of the audit committee’s or independent valuation firm’s opinion, as the case may be. Also, beginning on the business day following the day 
the transaction was approved by the  

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board of directors, the audit committee’s or independent valuation firm’s reports shall be made available to the shareholders at the company’s principal 
executive offices. 

If the audit committee or the two independent valuation firms do not find that the contract is on arm’s-length terms, prior approval must be obtained 

at the company’s shareholders’ meeting. 

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ITEM 8. Financial Information 

Financial Statements 

See Item 18 for our Consolidated Financial Statements. 

Legal Proceedings 

Argentina 

The Privatization Law provides that the Argentine State shall be responsible, and shall hold us harmless, for any liabilities, obligations or other 
commitments existing as of December 31, 1990 that were not acknowledged as such in the financial statements of Yacimientos Petrolíferos Fiscales 
Sociedades del Estado as of that date arising out of any transactions or events that had occurred as of that date, provided that any such liability, 
obligation or other commitment is established or verified by a final decision of a competent judicial authority. In certain lawsuits related to events or acts 
that took place before December 31, 1990, we have been required to advance the payment of amounts established in certain judicial decisions, and have 
subsequently been reimbursed or are currently in the process of requesting reimbursement from the Argentine government of all material amounts in 
such cases. We are required to keep the Argentine government apprised of any claim against us arising from the obligations assumed by the Argentine 
government. We believe we have the right to be reimbursed for all such payments by the Argentine government pursuant to the above-mentioned 
indemnity, which payments in any event have to date not been material. This indemnity also covers fees and expenses of lawyers and technical 
consultants subject, in the case of our lawyers and consultants, to the requirement that such fees and expenses not be contingent upon the amounts in 
dispute. 

Reserved, probable contingencies 

In the ordinary course of our business, we are a party to various actions, including approximately 1,985 labor lawsuits as of December 31, 2007, for 

which provisions of Ps.42 million have been made. 

Reserves totaling Ps.1,898 million, Ps.1,571 million and Ps.1,303 million as of December 31, 2007, 2006 and 2005, respectively, have been 

established to provide for contingencies which are probable and can be reasonably estimated. In the opinion of our management, in consultation with our 
external counsel, the amount reserved reflects the best estimation, based on the information available as of the date of this annual report, of the probable 
outcome of the mentioned contingencies. The most significant legal proceedings and claims reserved are described in the following paragraphs. 

CNDC anti-competitive activity disputes. On March 22, 1999, we were notified of Resolution No. 189/99 from the former Department of Industry, 

Commerce and Mining of Argentina, which imposed a fine on us of Ps.109 million, stated Argentine pesos as of that date, based on the interpretation 
that we had purportedly abused our dominant position in the bulk LPG market due to the existence of different prices between the exports of LPG and 
the sales to the domestic market from 1993 through 1997. In July 2002, the Argentine Supreme Court confirmed the fine, and we made the claimed 
payment. Additionally, Resolution No. 189/99 provided for the commencement of an investigation in order to prove whether the penalized behavior 
continued from October 1997 to March 1999. On December 19, 2003, the CNDC completed its investigation and charged us with abuse of dominant 
market position during this period. On January 20, 2004, we answered the notification by (i) claiming the application of the statutes of limitations and 
alleging the existence of defects in the imputation procedure (absence of majority in the resolution that decided the imputation and prejudgment by its 
signers); (ii) arguing the absence of abuse of dominant position; and (iii) offering the corresponding evidence. 

Given that the Argentine Supreme Court has previously established under Law No. 22,262 that the statute of limitations for administrative 
infractions is two years, our defense based on the statute of limitations having run should be successful. Since the imputed conduct occurred before 
September 29, 1999, which is the effective date of the new law, we believe that the law applicable to the proceeding is Law No. 22,262 instead of the 
new Antitrust Protection Law (No. 25,156). We filed appeals with the National Economic Criminal Court: (i) on July 29, 2003, in  

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view of the rejection by the CNDC of the motion to overturn the resolution that ordered the opening of the preliminary investigations, without deciding 
in advance on the prescription claimed by us; and (ii) on February 4, 2004, in view of the rejection by the CNDC of the motion to overturn the resolution 
that ordered the charge because of a lack of majority and prejudgment. On April 13, 2004, the National Court of Appeals in Criminal Economic Matters 
sustained the appeal filed by us on the grounds of lack of majority of the CNDC in passing the objected resolution. On August 31, 2004, we appealed the 
resolution passed by the CNDC that rejected the claimed prescription. The CNDC accepted the appeal and referred the proceedings to Chamber II of the 
National Court of Appeals in Federal Civil and Commercial Matters and thereby prevented the prior intervention of Room B of the National Court of 
Appeals in Criminal Economic Matters. On March 3, 2006, the CNDC decided on the evidence that we shall produce during this proceeding. During 
August and September 2007, hearings involving the testimony of witnesses proposed by us took place. Despite the arguments expressed by us, the 
above-mentioned circumstances make evident that, preliminarily, the CNDC rejects the defenses filed by us and that the CNDC is reluctant to modify 
the doctrine provided by Resolution No. 189/99. Furthermore, Court of Appeals decisions tend to confirm the decisions made by the CNDC. 

Alleged defaults under natural gas supply contracts – Innergy, et al. Since 2004, the Secretariat of Energy and the Undersecretariat of Fuels, 

through Rule No. 27/04, Resolutions No. 265/04, 659/04, 752/05, 1329/06 and 599/07, have on various occasions instructed us to supply certain 
quantities of natural gas to the Argentine domestic market, in each case notwithstanding the lack of a contractual commitment on our part to do so. In 
addition, the Argentine government has, at various times since 2004, imposed direct volume limitations on natural gas exports in different ways. As a 
result of these measures, from 2004 to the present, we have been forced in many instances to partially or fully suspend natural gas export deliveries that 
are contemplated by our contracts with export customers. 

We appealed these measures, but, pending favorable final resolution of such appeals, we have been obliged to comply in order to avoid greater 
losses to us and our export customers that could be occasioned by the revocation of our export permits or other penalties. We informed our natural gas 
export customers of our position that these governmental measures constitute an event of force majeure that releases us from any contractual or extra-
contractual liability deriving from the failure to deliver the agreed upon volumes of gas. Some of our customers have rejected our position and three of 
them have sought damages and/or penalties for breach of supply commitments under a contractual “deliver or pay” clause, which claims have been 
rejected by us. 

Innergy Soluciones Energéticas S.A. has filed an arbitral claim against us based on its “deliver or pay” clause, seeking U.S.$87.7 million in 

damages as of August 2007, plus interest (as calculated by Innergy on September 17, 2007). This amount increases as Innergy invoices “deliver or pay” 
amounts to us on a monthly basis, beginning in September 2007, for partially missed deliveries. In addition to our claim of force majeure, we have 
counterclaimed against Innergy for contract termination based upon the “statutory hardship” exemption set forth in Article 1198 of the Argentine Civil 
Code, in light of recent substantial increases in Argentine export duties on natural gas that make our cost of delivering natural gas to Innergy 
significantly higher than the price to be paid to us by Innergy for such deliveries. Currently, we and Innergy have suspended the arbitration until April 
30, 2008 to allow for settlement discussions. 

We are also currently in pre-arbitral settlement discussions with the other two clients that have sought damages from us under the “deliver-or-pay” 

clause, Electroandina S.A. and Empresa Eléctrica del Norte Grande S.A. These companies have claimed damages through November 2006 in a total 
amount of approximately U.S.$41 million and, from December 2006 through September 2007, for an additional total amount of U.S.$52 million. We 
have opposed such claims. 

Alleged defaults under natural gas supply contracts – Central Puerto. Central Puerto S.A. (“Central Puerto”) has made claims against us for 
cutbacks in natural gas supply pursuant to its contracts. We have formally denied such breach, based on the fact that, pending the restructuring of such 
contracts, we are not obligated to confirm nominations of natural gas during certain periods of the year. On March 15, 2007, Central Puerto notified us of 
the commencement of pre-arbitral negotiations in relation to the agreements for the supply of its plants located in Buenos Aires and Loma de La Lata, 
province of Neuquén. On May 29, 2007, we and Central Puerto entered into a Termination and Dispute Resolution Agreement regarding the principles 
of agreement for the supply of Central  

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Puerto’s plant located in Loma de La Lata. On June 6, 2007, Central Puerto notified us of its decision to submit the controversy regarding the agreement 
for the supply of natural gas to its plants located in Buenos Aires (the “Buenos Aires Gas Supply Agreement”) to arbitration under the rules of the 
International Chamber of Commerce. On June 21, 2007, we appointed our arbitrator and notified Central Puerto of our decision to submit to arbitration 
the controversy regarding the amounts due by Central Puerto under the Buenos Aires Gas Supply Agreement. On July 23, 2007, Central Puerto filed an 
arbitral claim for: (i) our specific performance of the Buenos Aires Gas Supply Agreement by continuing to deliver volumes of natural gas of up to 
3,400,000 m3/day, the applicable maximum daily requirement under the contract, to Central Puerto’s plants located in Buenos Aires; (ii) our payment of 
“deliver or pay” amounts for failure to deliver natural gas (totaling 1,920 mmcm through December 3, 2007), without specifying the amount claimed; 
and (iii) acknowledgement of Central Puerto’s right to make-up natural gas volumes. On September 24, 2007, we answered Central Puerto’s claim and 
filed counterclaims asking the tribunal for: (i) a declaration of the termination of the contract; or (ii) as a subsidiary claim in case the tribunal rejects the 
request for termination of the contract, the restructuring of the contract under the Civil Law principles of “Teoría de la Imprevisión” (hardship provision) 
and “Sacrificio Compartido” (both-parties-effort) and (iii) payment by Central Puerto of “take or pay” amounts owed by Central Puerto for certain 
amounts produced but not taken between 2002 and 2004. On December 3, 2007, Central Puerto submitted a presentation requesting that the tribunal 
reject all of our claims. On February 11, 2008, a hearing took place among the members of the arbitral tribunal and the parties at which a document 
setting forth procedures for the arbitration was agreed upon and signed by the parties. In that document, Central Puerto indicated that it could not 
quantify its damages until its experts had completed their work. We estimated our damages to be approximately U.S.$11 million plus interest, adjusted 
for inflation (pursuant to the Stabilization Reference Coefficient or CER), though we also indicated that this amount could change based on the results of 
work being performed by our experts. On March 12, 2008, we and Central Puerto suspended the arbitration for 30 days to allow for settlement 
discussions. 

La Plata refinery environmental disputes. On June 29, 1999, a group of three neighbors of the La Plata Refinery filed claims for the remediation of 

alleged environmental damages in the peripheral water channels of the refinery, investments related to contamination and compensation for alleged 
health and property damages as a consequence of environmental pollution caused by YPF prior to and after privatization. We notified the executive 
branch of the Argentine government that there is a chance that the tribunal may find us responsible for the damages. In such event, due to the indemnity 
provided by Law No. 24,145 and in accordance with that law, we shall be allowed to request reimbursement of the expenses for liabilities existing on or 
prior to January 1, 1991 (before privatization) from the Argentine government. 

On December 27, 2002, a group of 264 claimants who resided near the La Plata Refinery requested compensation for alleged quality of life 
deterioration and environmental damages purportedly caused by the operation of the La Plata Refinery. The amount claimed is approximately Ps.54 
million. We filed a writ answering the complaint. There are two similar additional claims raised by two groups of 120 and 343 neighbors, respectively. 
The first group has made a claim for compensation of Ps.14 million, and the second group has made a claim for compensation of Ps.35 million, in 
addition to a request for environmental cleanup. As of December 31, 2007, we had established a reserve of Ps.21 million with respect to these personal 
or property claims. 

On December 17, 1999, a group of 37 claimants who resided near La Plata Refinery, demanded the specific performance by us of different works, 
installation of equipment, technology and execution of work necessary to stop any environmental damage, as well as compensation for health damages 
alleged to be the consequence of gaseous emissions produced by the refinery, currently under monitoring. 

We have been informally notified that the Secretariat of Environmental Policy of the Province of Buenos Aires has brought criminal proceedings 

against us on the grounds of the purported worsening of the water quality problems in the Western Channel adjacent to La Plata Refinery, potential 
health damages (on account of the existence of volatile particles and/or hydrocarbon suspension), non-fulfillment of a remediation schedule of canals, 
and the existence of allegedly clandestine disposal sites. To our knowledge, the responsible court has not yet made any formal accusations. 

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AFIP tax claims. On January 31, 2003, we received a claim from the Federal Administration of Public Revenue (Administración Federal de 
Ingresos Públicos, or “AFIP”), stating that the forward oil sale agreements entered into by us (see “Item 5. Operating and Financial Review and 
Prospects—Liquidity and Capital Resources—Transactions with unconsolidated variable interest entities”) should have been subject to an income tax 
withholding. On March 8, 2004, the AFIP formally communicated to us the claim for approximately Ps.45 million plus interest and fines. Additionally, 
on June 24, 2004, we received a new formal claim from the AFIP, asserting that the services related to these contracts should have been taxed with the 
Value Added Tax. Management believes, based upon the opinion of its external counsel, that the claim is without merit since those advances were 
received under crude oil export commitments. Consequently, during 2004, we presented our defense to the AFIP, rejecting the claims and arguing our 
position. However, on December 28, 2004, we received formal communication of a resolution from the AFIP confirming its original position in both 
claims. We have appealed such resolution in the National Fiscal Court. In 2006, we conditionally paid the amounts corresponding to periods that 
followed those included in the claim by the AFIP and filed reimbursement summary proceedings so as to avoid facing interest payments or a fine. On 
March 18, 2008 the AFIP notified us of the rejection of the reimbursement previously mentioned. We will appeal that decision to the National Fiscal 
Court. 

In addition, we have received several other claims from the AFIP and from the provincial and municipal fiscal authorities, which are not 

individually significant. 

Sale of Electricidad Argentina S.A. and Empresa Distribuidora y Comercializadora Norte S.A. to EDF. In July 2002, EDF Internacional S.A. 
(“EDF”), initiated an international arbitration proceeding under the Arbitration Regulations of the International Chamber of Commerce against us, 
among others, seeking payment from us of U.S.$69 million which was afterward increased to U.S.$103.2 million. EDF claims that under a Stock 
Purchase Agreement dated March 30, 2001 among Endesa Internacional S.A. and Astra Compañía Argentina de Petróleo S.A. (which was subsequently 
merged into YPF), as sellers, and EDF, as purchaser, with respect to shares of Electricidad Argentina S.A. and Empresa Distribuidora y 
Comercializadora Norte S.A. (“Edenor”), EDF is entitled to an adjustment in the purchase price it paid due to changes in the exchange rate of the 
Argentine peso that EDF asserts to have occurred prior to December 31, 2001. Our position is that the change in the exchange rate did not occur prior to 
January 2002, and, therefore, EDF is not entitled to the purchase price adjustment. We have filed a counterclaim against EDF in the amount of 
U.S.$13.85 million as a purchase price adjustment. We believe that EDF’s claim is without merit. The arbitral award dated October 22, 2007 accepted 
the claim against us awarding damages against us in the amount of U.S.$40 million and also accepted our counterclaim against EDF in the amount of 
U.S.$11.1 million. Consequently, the amount payable by us should the award become final is U.S.$28.9 million plus costs and interest. We have 
challenged the award by filing an extraordinary appeal before the Federal Supreme Court and an appeal before the Federal Appellate Court on 
Commercial Matters. 

Non-reserved, possible contingencies 

In addition to the probable contingencies described in the preceding paragraphs, we have received several labor, civil, commercial and 

environmental claims which had not been reserved since management, based on the evidence available to date and upon the opinion of our external 
counsel, have considered them to be possible contingencies. The most significant of such contingencies are described below. 

Capital control-related proceedings. On December 9, 2002, we filed a declaratory judgment action (Acción Declarativa de Certeza) before an 

Argentine federal court requesting clarification as to the uncertainty generated by opinions and statements of several organizations providing official 
advice that the right of the hydrocarbon industry to freely dispose of up to 70% of foreign currency proceeds from exports of hydrocarbons products and 
byproducts, as provided by Executive Decree No. 1,589/89, had been implicitly abolished by the new exchange regime established by Executive Decree 
No. 1,606/01. On December 9, 2002, a federal judge issued an injunction ordering the Argentine government, the Central Bank and the Ministry of the 
Economy to refrain from interfering with our access to and use of 70% of the foreign exchange proceeds from our hydrocarbon exports. Following the 
enactment of Decree No. 2,703/02 in December 2002, we expanded the scope of the declaratory judgment action before the federal court to clear any 
doubts and uncertainty arising after the enactment of this decree. See “Item 4. Information on the Company—Regulatory Framework and Relationship 
with the Argentine Government—Repatriation of  

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Foreign Currency.” On December 1, 2003, the National Administrative Court of Appeals decided that the issuance of Decree No. 2,703 in 2002, which 
allows companies in the oil and gas sector to keep abroad up to 70% of the export proceeds, rendered the injunction unnecessary. Nevertheless, the Court 
of Appeals’ decision was silent with respect to the availability of the exemption to convert proceeds from export operations carried out by oil and gas 
companies into domestic currency prior to the issuance of Decree 2,703. On December 15, 2003, we filed a motion for clarification asking the court to 
clarify whether the exemption was available to oil and gas companies during the period between the issuance of Decree No. 1,606/01 and the issuance of 
Decree No. 2,703/02. On February 6, 2004, the Court of Appeals dismissed our motion for clarification, indicating that the regulations included in 
Decree No. 2,703/02 were sufficiently clear, and confirmed the lifting of the injunction that prohibited the Central Bank and the Ministry of Economy 
from interfering with our access to foreign exchange proceeds, as described above. On February 19, 2004, we filed an extraordinary appeal before the 
Supreme Court against the dismissal of the motion for clarification by the Court of Appeals and requested the restatement of the injunction against the 
Central Bank and the Ministry of Economy. The Federal Court of Appeals dismissed the extraordinary appeal. Taking into account the fact that there is a 
new special system in place allowing for the free disposal of up to 70% of the foreign currency proceeds from the exports of crude oil and its derivatives, 
it was deemed advisable to abandon the suit as a procedural strategy. If the Central Bank were to reassert and prevail before the courts in the argument 
that the exemption allowing oil and gas companies to keep up to 70% of export proceeds abroad during the period between the issuance of Decree No. 
1,606/01 and the issuance of Decree No. 2,703/02 was not available, we could be subject to material penalties. 

On October 12, 2007, we were notified of the initiation of an administrative summary proceeding for alleged late repatriation of foreign currency 

proceeds, and the failure to repatriate the remaining 70%, in connection with some hydrocarbon export transactions made in 2002 (during the period 
between the issuance of Decree No. 1,606/01 and the issuance of Decree No. 2,703/02). In this administrative summary proceeding, charges were 
brought against us in the amount of U.S.$1.6 million, and it has been advised that the conduct of a bank that handled other of our export transactions 
made in 2002 be investigated, which could give rise to the initiation of further proceedings. Nevertheless, a final and unchallenged judicial judgment 
recently issued by a First Instance Court in Criminal Economic Matters in a similar administrative summary proceeding against a different company for 
alleged violation of the criminal exchange law (lack of repatriation of 70% of foreign currency proceeds) regarding export transactions made in 2002 
resolved the matter in favor of that company based on well-founded arguments that were not challenged by the prosecutor. In addition, the Argentine 
Attorney General recently issued an opinion in similar proceedings against another oil company stating that there were no criminal law violations in that 
case due to the lack of willful misconduct and the existence of laws that created uncertainty as to the extent of certain obligations. 

CNDC investigation. On November 17, 2003, CNDC requested explanations, within the framework of an official investigation pursuant to Art. 29 
of the Antitrust Act, from a group of almost 30 natural gas production companies, including us, with respect to the following items: (i) the inclusion of 
clauses purportedly restraining trade in natural gas purchase/sale contracts and (ii) gas imports from Bolivia, in particular (a) expired contracts signed by 
YPF, when it was state-owned, and YPFB (the Bolivian state-owned oil company), under which YPF allegedly sold Bolivian gas in Argentina at prices 
below the purchase price; and (b) the unsuccessful attempts in 2001 by Duke and Distribuidora de Gas del Centro to import gas into Argentina from 
Bolivia. On January 12, 2004, we submitted explanations in accordance with Art. 29 of the Antitrust Act, contending that no antitrust violations had 
been committed and that there had been no price discrimination between natural gas sales in the Argentine market and the export market. On January 20, 
2006, we received a notification of resolution dated December 2, 2005, whereby the CNDC (i) rejected the “non bis in idem” petition filed by us, on the 
grounds that ENARGAS was not empowered to resolve the issue when ENARGAS Resolution No. 1,289 was enacted; and (ii) ordered that the 
preliminary opening of the proceedings be undertaken pursuant to the provisions of Section 30 of Act 25,156. On January 15, 2007, CNDC charged us 
and eight other producers with violations of Act 25,156. We have contested the complaint on the basis that no violation of the Act took place and that the 
charges are barred by the applicable statute of limitations, and have presented evidence in support of our position. On June 22, 2007, without 
acknowledging any conduct in violation of the Antitrust Act, we filed with the CNDC a commitment according to Article 36 of the Antitrust Act 
requesting that the CNDC approve the commitment, suspend the investigation and dismiss the proceedings. We are still awaiting a formal response. 

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The CNDC has commenced proceedings to investigate us for using a clause in bulk LPG supply contracts that it believes prevents buyers from 
reselling the product to third parties and therefore restricts competition in a manner detrimental to the general economic interest. We have asserted that 
the contracts do not contain a prohibition against resale to third parties and have offered evidence in support of our position. On April 12, 2007, we 
presented to the CNDC, without acknowledging any conduct in violation of the Antitrust Act, a commitment consistent with Article 36 of the Antitrust 
Act not to include such clauses in future bulk LPG supply contracts, among other things, and requested that the CNDC terminate the proceedings. We 
are still awaiting a formal response. 

Noroeste basin reserves review. The effectiveness after certain specific dates of natural gas export authorizations (related to production in the 
Noroeste basin) granted to us pursuant to Resolution SE Nos. 165/99, 576/99, 629/99 and 168/00, issued by the Secretariat of Energy, is subject to an 
analysis by the Secretariat of Energy to determine whether sufficient additional natural gas reserves have been discovered or developed by us in the 
Noroeste basin. The result of this ongoing review is uncertain and may have an adverse impact upon the execution of the export gas sales agreements 
related to such export authorizations, and may imply significant costs and liabilities for us. We have submitted to the Secretariat of Energy 
documentation in order to allow for the continuation of the authorized exports in accordance with Resolutions SE No. 629/1999, 565/1999, and 
576/1999 (the “Export Permits”) from the Noroeste basin. These Export Permits relate to the long-term natural gas export contracts with Gas Atacama 
Generación, Edelnor and Electroandina (collectively, the “Clients”), involving volumes of 900,000 m3/day, 600,000 m3/day and 1,750,000 m3/day, 
respectively. We have not yet received a response from the Secretariat of Energy. However, on March 29, 2007, an internal memorandum of the 
technical sector of the Secretariat of Energy addressed this file and concluded, without resolving the question that we have not included the necessary 
reserves to continue with the Export Permits. The file is currently awaiting decision from the Secretariat of Energy. If the Secretariat of Energy were to 
determine that the reserves are not sufficient to continue to comply with our export commitments and other commitments, it could declare the expiration 
or suspension of one or more of the Export Permits, which would have a direct impact on the export contracts, to the injury of the Clients. In the case in 
which it were determined that we did not act as a prudent and diligent operator and/or did not have sufficient reserves, we could be responsible for the 
damages that this situation causes to the Clients. 

Alleged defaults under natural gas contracts – Mega. Mega has claimed compensation from us for failure to deliver natural gas under the contract 

between us and Mega. We invoked that natural gas deliveries to Mega pursuant to the contract were affected by the Argentine government’s 
interference. Likewise, we believe that we would not be liable for such natural gas delivery deficiencies pursuant to the doctrines of “force majeure” and 
“contract impracticability.” 

New Jersey claims. On December 13, 2005, the New Jersey Department of Environmental Protection and the New Jersey Spill Compensation Fund 

filed a claim with a New Jersey court against Occidental Chemical Corporation, Tierra, Maxus, Repsol YPF, YPF, YPF Holdings and CLH Holdings. 
The plaintiffs are claiming for the remediation of environmental damages, punitive damages and other damages including the costs and fees associated 
with this proceeding, based on alleged violations of the Spill Compensation and Control Act and the Water Pollution Control Act in a facility allegedly 
operated by the defendants and located in Newark, New Jersey that allegedly impacted the Passaic River and Newark Bay. YPF has filed a motion to 
dismiss for lack of personal jurisdiction. See “—YPF Holdings.” 

Patagonian Association of Land-Owners claims. On August 21, 2003, the Patagonian Association of Land-Owners (“ASSUPA”) sued the 
companies operating production concessions and exploration permits in the Neuquina basin, including us, claiming for the remediation of the general 
environmental damage purportedly caused in the execution of such activities or the establishment of an environmental restoration fund, and the 
implementation of measures to prevent environmental damages in the future. The total amount claimed against all companies is more than U.S.$547.6 
million. The plaintiff requested that the Argentine government (Secretariat of Energy), the Federal Environmental Council (Consejo Federal de Medio 
Ambiente), the provinces of Buenos Aires, La Pampa, Neuquén, Río Negro and Mendoza and the National Ombudsman be summoned. It requested, as a 
preliminary injunction, that the defendants refrain from carrying out activities affecting the environment. Both the Ombudsman’s summons as well as 
the requested preliminary injunction were rejected by the Supreme Court of Argentina. Once the complaint was notified, we and the other defendants 
filed a motion to dismiss for failure of the plaintiff to state a claim upon which relief may be granted. The court granted the motion, and the plaintiff had 
to file a supplementary  

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complaint. We have requested that the claim be rejected because the defects of the complaint indicated by the Supreme Court of Argentina have not been 
corrected. However, we have also requested its rejection for other reasons, and impleaded the Argentine government, due to its obligation to indemnify 
us against any liability and hold the us harmless for events and claims arising prior to January 1, 1991, according to Law No. 24,145 and Decree 
546/1993. Our request is currently pending. 

Dock Sud and Quilmes claims. We have been sued in the following environmental lawsuits that have been filed by residents living near Dock Sud, 
province of Buenos Aires: (i) “Mendoza, Beatriz against National State et al.” is a lawsuit pending before the Supreme Court of Argentina, in which the 
Argentine government, the province of Buenos Aires, the City of Buenos Aires, 14 municipalities and 44 companies (including us) are being sued. The 
plaintiffs have requested unspecified compensation for collective environmental damage of Matanza and Riachuelo river basins and for physical and 
property damage, which they claim to have suffered. The National Supreme Court declared itself legally competent to settle only the conflict related to 
the collective environmental damages, including prevention of future pollution, remediation of environmental damages already caused and monetary 
compensation for irreparable environmental damages; and has requested that the defendants submit specific reports. In particular, it has requested that 
the Argentine government, the province of Buenos Aires, the City of Buenos Aires and Cofema submit a plan with environmental objectives. We have 
answered the complaint and requested the impleading of the Argentine government, based on its obligation to indemnify us against any liability and hold 
us harmless for events and claims previous to January 1, 1991, according to Law No. 24,145 and Decree No. 546/1993; (ii) “Félix, Víctor et al. against 
Shell C.A.P.S.A. et al. for compensation” is a suit in which the province of Buenos Aires and the Municipality of Avellaneda are being sued, as are 
companies domiciled at Dock Sud, including us. The plaintiffs are requesting environmental remediation of Dock Sud, which they estimate at Ps.600 
million, and physical and property damages. However, we have been informed that plaintiffs have left without effect their claim against us; (iii) “Cicero, 
María Cristina against Antivari S.A.C.I. et al. for damages” in which the plaintiffs, who are residents of Villa Inflamable, Dock Sud, also demand the 
environmental remediation of Dock Sud and Ps.33 million in compensation for physical and property damages against many companies that have 
operations there, including us. We answered the complaint by requesting its rejection and asked the citation of the Argentine government, due to its 
obligation to indemnify us against any liability and hold us harmless for events and claims previous to January 1, 1991, according to Law No. 24,145 
and Decree No. 546/1993. 

In addition, citizens claiming to be residents living near Quilmes, in the province of Buenos Aires, have filed a lawsuit in which they have requested 

the remediation of environmental damages and the payment of Ps.46 million as compensation for alleged personal damages. The plaintiffs base their 
claim mainly on a fuel leak that occurred in 1988 in a poliduct running from La Plata to Dock Sud that was operated by Yacimientos Petrolíferos 
Fiscales S.A. The leaked fuel became perceptible in November 2002, resulting in remediation that is now being performed by us in the affected area, 
supervised by the environmental authority of the province of Buenos Aires. We have requested an extension of the time to answer the complaint to allow 
us time to evaluate certain documents submitted to the court by the plaintiffs. We have also notified the Argentine government that we will implead it at 
the time we answer the complaint in order to request that it indemnify us against any liability and hold us harmless in connection with this lawsuit, as 
provided by Law. No. 24,145. Others have brought non-judicial claims against us based on similar allegations, amounting to Ps.4 million. In these cases, 
we believe that the Argentine government will contest its obligation to indemnify and hold us harmless by claiming that the alleged damages were not 
caused by the 1988 leak. 

La Plata Refinery environmental claims. On June 6, 2007, we were served with a new complaint in which nine residents of the vicinity of the La 
Plata Refinery request (i) the cessation of contamination and other harms they claim are attributable to the refinery and (ii) the cleanup of the adjacent 
canals, Río Santiago and Río de la Plata (water, soils and aquifers, including within the refinery), or, if cleanup is impossible, compensation for 
environmental and personal damages. The plaintiffs have also requested physical and property damages of Ps.51.4 million, or an amount to be 
determined from evidence produced in discovery. We believe that most damages that are alleged by the plaintiff, if proven, may be attributable to events 
that occurred prior to YPF’ s privatization and would therefore be the responsibility of the Argentine government in accordance with the Privatization 
Law of YPF. Notwithstanding the foresaid, there is the possibility a judgment could order us to meet the expenses of remedying these liabilities, in 
which case we could ask the Argentine government to reimburse the remediation expenses for  

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liabilities existing prior to January 1, 1991 pursuant to Law 24,145. In addition, we believe that this claim partially overlaps with the request made by a 
group of neighbors of the La Plata Refinery on June 29, 1999, mentioned in preceding paragraphs. Accordingly, we consider that the cases will need to 
be partially consolidated to the extent that the claims overlap. We answered the complaint by requesting its rejection and asked for the citation of the 
Argentine government, due to its obligation to indemnify us against any liability and hold us harmless for events and claims previous to January 1, 1991, 
according to Law No. 24,145 and Decree No. 546/1993. The contamination that may exist could derive from countless sources, including from dumping 
of refuse over many years by other industrial facilities and by ships. 

Additionally, we are aware of an action in which we have not yet been served, in which the plaintiff requests the cessation of contamination and the 

cleanup of the canals adjacent to the La Plata Refinery, in Río Santiago, and other sectors near the coast (removal of mud, drainage of wetlands, 
restoration of biodiversity, among other things), and, if such sanitation is not practicable, compensation of Ps.500 million (approximately U.S.$161 
million) or an amount to be determined from evidence produced in discovery. We believe that this claim partially overlaps with the requests made by a 
group of neighbors of the La Plata Refinery on June 29, 1999 and with the complaint served on June 6, 2007, mentioned in preceding paragraphs. 
Accordingly, we consider that if we are served in this proceeding or any other proceeding related to the same subject matters, the cases will need to be 
consolidated to the extent that the claims overlap. With respect to claims that would not be included in the previous proceedings, for the time being we 
are unable to estimate the prospects of such claims. Additionally, we believe that most damages that would be alleged by the plaintiff, if proven, may be 
attributable to events that occurred prior to YPF’s privatization and could therefore be the responsibility of the Argentine government in accordance with 
the Privatization Law concerning YPF. 

Non-reserved, remote contingencies 

Our management, in consultation with our external counsel, believes that the following contingencies, while individually significant, are remote: 

Congressional request for investigation to CNDC. On November 7, 2003, certain former members of the Argentine Congress, Arturo Lafalla, 
Ricardo Falu and others, filed with the CNDC a complaint against us for abuse of a dominant position in the bulk LPG market during 2002 and part of 
2003. The alleged conduct consisted of selling bulk LPG in the domestic market at prices higher than the export price, thereby restricting the availability 
of bulk LPG in the domestic market. On December 15, 2003, the CNDC decided to forward the complaint to us, and requested explanations under Art. 
29 of the Antitrust Act. On January 21, 2004, we submitted explanations in accordance with Art. 29 of the Antitrust Act, contending that no antitrust 
violations had been committed. At this point, the CNDC may accept our explanations or begin a criminal investigation. We contend that we did not 
restrict LPG supply in the domestic market during the relevant period, that during this period all domestic demand for LPG could have been supplied by 
our competitors and that therefore our market share could not be deemed a dominant position. As of the date of this registration statement, CNDC has 
not taken any further action. 

Pursuant to the provisions of Resolution No. 189/99, referred to above, certain third parties have claimed compensation for alleged damages 

suffered by them as a consequence of our sanctioned conduct. We have denied these claims and presented our defenses. 

Neuquén royalty disputes. On February 20, 2006, the province of Neuquén published in the Official Gazette Decrees No. 225/06 and 226/06 (the 
“Decrees”). The Decrees provide that royalties for domestic sales of hydrocarbons produced within the province of Neuquén must be calculated using 
international market prices as a reference, thus increasing the amounts of the royalties to be paid by us. The calculation of hydrocarbon royalties, in 
accordance with Section 75 (12) of the Argentine Constitution, is ruled by federal legislation, and the Decrees, in our opinion, contradict the preemption 
principle of the Argentine Constitution. We filed a declaratory judgment action (Acción Declarativa de Certeza) with the Argentine Supreme Court with 
the aim of obtaining the nullification of the Decrees and the issuance of an interim measure banning the province of Neuquén from filing any royalty 
claim on the ground of the provisions contained within the Decrees. On October 31, 2006, the Argentine Supreme Court issued an injunction ordering 
the province of Neuquén to refrain from applying the Decrees to us. On November 29, 2007, the province of Neuquén issued Decree No. 2200/07, 
revoking the Decrees, and subsequently  

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petitioned the Argentine Supreme Court to withdraw its injunction against the Decrees as moot. We have filed a written request for the continuation of 
the injunction as well as the official revocation of the Decrees. Neuquén has not expressly withdrawn its request and the matter is currently pending 
before the Argentine Supreme Court. 

On August 31, 2004, the province of Neuquén filed with the Federal Court of the province of Neuquén (the “Federal Court”) a claim against 

Atalaya Energy and 19 oil and gas companies, including us, claiming compliance with Section 6 Law No. 25,561 for the calculation of royalties 
regarding hydrocarbons produced within the province of Neuquén. Section 6 Law No. 25,561 provides that in no event will export withholdings reduce 
the wellhead prices for the calculation and payment of hydrocarbon royalties. According to the province of Neuquén’s reading of Section 6 Law No. 
25,561, the oil and gas companies producing hydrocarbons in the province of Neuquén should not make any deduction based on export withholdings for 
the calculation of royalties corresponding to hydrocarbons sold in the domestic market. The Federal Court issued an interim measure ordering the oil and 
gas companies to calculate and pay royalties on the basis of international prices. We filed an appeal against such interim measure. On October 5, 2005, 
the Federal Court granted our appeal. Additionally, the Federal Court clarified that Section 6 Law No. 25,561 shall be applied only to the calculation of 
royalties regarding exported hydrocarbons. The province of Neuquén appealed this decision to the National Court of Appeals, which declared that it 
lacked jurisdiction and referred the case to the Argentine Supreme Court. In 2006, the Argentine Supreme Court also declared that it lacked jurisdiction, 
and returned the case file to the Federal Court. We also requested the Argentine Supreme Court to order the Federal Court to restrain from continuing 
proceedings. The Argentine Supreme Court denied such request and we filed a writ requesting the reversal of such decision. On May 14, 2007, the judge 
issued an opinion declaring that the Federal Court lacked jurisdiction to hear our royalties dispute case and the case was transferred to the administrative 
courts of the province of Neuquén. On May 17, 2007, we presented our appeal on the basis that the judge failed to consider recent jurisprudential records 
of the Federal Court (the case of the Neuquén Decrees) that acknowledged that royalties disputes posed a valid federal question. On June 29, 2007, the 
judge rejected our motion in limine but subsequently accepted our motion of appeal. We have filed a request with the Federal Court requesting 
jurisdiction over the royalties litigation, in light of the above-mentioned recent jurisprudence. 

Other export tax disputes. During 2006 and 2007, the Customs General Administrations in Neuquén, Comodoro Rivadavia and Puerto Deseado 

informed us that certain summary proceedings had been brought against us based on alleged formal misstatements on forward oil deliveries (future 
commitments of crude oil deliveries) in the loading permits submitted before these agencies. Although our management, based on the opinion of legal 
counsel, believes the claim has no legal basis, the potential fines imposed could be substantial. 

Mendoza royalties dispute. Following demands by the province of Mendoza that the international market price be applied to internal market 
transactions based on an interpretation of Section 6 of Law No. 25,561 (similar to the above-mentioned claim made by Neuquén), we commenced an 
administrative proceeding. Our request is currently pending. 

Neuquén concession investment dispute. On November 22, 2007, we received Note No. 172/07 of the Secretariat of Energy and Mining of the 

Province of Neuquén (SEEyM), alleging material shortfalls in our investments pursuant to the Extension Agreement for the Loma de la Lata – Sierra 
Barrosa Concession, executed on December 5, 2000 (the “Extension Agreement”). The Note provided that: (i) “YPF shall immediately explain the 
reasons for the detected underinvestment, subject to immediate forfeiture of the concession extension”; (ii) “this serious incident makes it necessary to 
delay any negotiations with this company for the purpose of any concession extensions”; (iii) the proceedings will be remitted to the Provincial 
Legislature so that the legislators may weigh this “incident” at the time of reviewing any extension to the contracts; and (iv) legal rights were reserved 
for the institution of legal actions “to comprehensively redress the damage caused.” 

The Extension Agreement sets out three phases for investment by us: (i) a first phase from July 1, 2000 to December 31, 2005, during which the 
committed investment amounted to U.S.$3,500 million; (ii) a second period, from January 1, 2006 to December 31, 2011, contemplating a committed 
investment of U.S.$2,500 million; and (iii) a final period from January 1, 2012 to December 31, 2017, during which we agreed to invest the amount of 
U.S.$2,000 million. The aggregate amount of the committed investment is U.S.$8,000 million, and under the Extension Agreement any non-substantial 
difference in a phase can be performed and made up for in the next phase. 

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In addition to the SEEyM’s failure to observe Section 80 of Law No 17,319, which requires a controlling authority to warn permission holders and 

concession operators and to allow them to cure violations, we believe that: 

 we have made the investments agreed to under the Extension Agreement for the first of the three periods (ended on 

December 31, 2005), which is the subject of Note No 172/07, whether calculated in U.S. dollars or in pesos (though we believe they should be 
calculated in pesos); 

 during almost two years since the end of the first period, we have made investments in the province of Neuquén of 
approximately U.S.$1,830 million (for a cumulative amount of U.S.$5,350 million since 2000), which greatly exceeds the difference alleged 
by the province in Note No. 172/07 and demonstrates the completion of our performance of the requisite investments for the first period 
(U.S.$2,500 million related to the years 2006-2011); and 

 the investment obligations are convertible into pesos at a one-to-one ratio by effect of the emergency regulations 

enacted in 2002 (including Section 1 of Decree 214/04) and in light of economic reality, as the size and scope of the investments that could be 
made at the time the Extension Agreement was entered into differs drastically from the amount possible after devaluation in 2002. Our 
arguments in this regard are considered without prejudice to asserting the “unforeseen conditions” doctrine under Argentine law due to the 
significant change in circumstances, as the right to assert the doctrine was not waived in the Extension Agreement. 

We have challenged Note No. 172/07 through administrative and judicial proceedings and believes that the claim made by the province of Neuquén 

is without merit; however, if the Province were to prevail, it would have a material adverse effect on us. 

Additional information 

On January 21, 2005, we were notified of a request made by Empresa Nacional de Electricidad S.A. (“ENDESA”) for arbitration to resolve a 

dispute relating to an alleged breach of a contractual clause in an export contract signed in June 2000. The clause relates to increased natural gas 
deliveries and ENDESA has requested payment of a contractual penalty resulting from our alleged failure to deliver the required amounts. The contract 
term is 15 years. ENDESA’s claim amounted to U.S.$353.8 million, while asserting that there had been willful misconduct on our part. Thereafter, the 
parties entered into (i) an agreement for the amendment of the gas supply agreement in order to adapt it to the export restrictions imposed by the 
Argentine government (the “Amendment”) and (ii) an agreement for the termination of the arbitration (the “Termination Agreement”), both subject to 
the Secretariat of Energy’s approval. On August 31, 2007, we were notified of the Secretariat of Energy’s approval. Thereafter, the parties informed the 
tribunal of the termination of the arbitration by mutual agreement. We have paid ENDESA U.S.$8 million pursuant to the Termination Agreement and 
ENDESA has foregone all claims based on past conduct. Finally, the Amendment adjusted the maximum semi-annual compensation that we would have 
to pay in connection with deficiencies in natural gas deliveries. 

On August 11, 2006, we received Note SE No. 1009 (the “Note”) from the Secretariat of Energy, which reviewed the progress of reserves in the 
Ramos Area in the Noroeste basin, in relation to the export authorization granted by Resolution SE No. 169/97 (the “Export Authorization”). The Export 
Authorization concerns the long-term natural gas export contract between us and GasAtacama Generación, for a maximum daily volume of 530,000 
m3/day. The Note stated that as a result of the decrease in natural gas reserves supporting the Export Authorization, the domestic market supply was at 
risk. The Note preventively provided that the maximum natural gas daily volumes authorized to be exported under the Export Authorization were to be 
reduced by 20%, affecting the export contract. We filed an answer to the Note on September 15, 2006 stating our allegations and defenses. 

YPF Holdings 

The following is a brief description of certain environmental and other liabilities related to YPF Holdings. 

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In connection with the sale of Maxus’ former chemical subsidiary, Diamond Shamrock Chemicals Company (“Chemicals”), to Occidental 
Petroleum Corporation (together with its subsidiary Occidental Chemical Corporation, “Occidental”) in 1986, Maxus agreed to indemnify Chemicals 
and Occidental from and against certain liabilities relating to the business or activities of Chemicals, including certain environmental liabilities. Tierra 
assumed essentially all of Maxus’ aforesaid indemnity obligations to Occidental in respect of Chemicals. See “Item 4. Information on the Company—
YPF Holdings—Operations in the United States.” 

As of December 31, 2007, YPF Holdings’ reserves for environmental and other contingencies totaled approximately U.S.$135.4 million. YPF 

Holdings management believes it has adequately reserved for all environmental and other contingencies that are probable and can be reasonably 
estimated based on information available as of such time; however, many such contingencies are subject to significant uncertainties, including the 
completion of ongoing studies, the discovery of new facts, or the issuance of orders by regulatory authorities, which could result in material additions to 
such reserves in the future. It is possible that additional claims will be made, and additional information about new or existing claims (such as results of 
ongoing investigations, the issuance of court decisions or the signing of settlement agreements) is likely to develop over time. YPF Holdings’ reserves 
for the environmental and other contingencies described below are based solely on currently available information and as a result, YPF Holdings, Maxus 
and Tierra may have to incur costs that may be material, in addition to the reserves already taken. 

In the following discussion concerning plant sites and third party sites, references to YPF Holdings include, as appropriate and solely for ease of 

reference, references to Maxus and Tierra. As indicated above, Tierra is also a subsidiary of YPF Holdings and has assumed certain of Maxus’ 
obligations. 

Newark, New Jersey. A consent decree, previously agreed upon by the U.S. Environmental Protection Agency (the “EPA”), the New Jersey 

Department of Environmental Protection (the “DEP”) and Occidental, as successor to Chemicals, was entered in 1990 by the United States District Court 
of New Jersey for Chemicals’ former Newark, New Jersey agricultural chemicals plant. The approved remedy has been completed and paid for by Tierra 
pursuant to the above described indemnification agreement with Occidental. Operations and maintenance of the constructed remedy are ongoing, and as 
of December 31, 2007, YPF Holdings has reserved approximately U.S.$15.8 million in connection with such activities. 

Passaic River/Newark Bay, New Jersey. Maxus, acting on behalf of Occidental, negotiated an agreement with the EPA under which Tierra has 
conducted further testing and studies to characterize contaminated sediment and biota in a six-mile portion of the Passaic River near the Newark, New 
Jersey plant site described above. While some work remains, these studies were substantially completed in 2005. In addition, the EPA and other agencies 
are addressing the lower 17-mile portion of the Passaic River (including the six-mile portion already studied) in a joint federal, state, local and private 
sector cooperative effort designated as the Lower Passaic River Restoration Project (PRRP). Tierra, along with certain other entities, has agreed to 
participate in and fund a remedial investigation and feasibility study (RIFS) in connection with the PRRP. The parties are discussing the possibility of 
further work with the EPA. The entities that have agreed to fund the RIFS have negotiated allocations of responsibility among themselves based on a 
number of considerations. Tierra, acting on behalf of Occidental, is also performing and funding a separate RIFS to characterize sediment contamination 
and evaluate remedial alternatives in Newark Bay and portions of the Hackensack River, the Arthur Kill, and the Kill van Kull pursuant to a 2004 
administrative order on consent with EPA. 

In December 2005, the DEP issued a directive to Tierra, Maxus and Occidental directing said parties to pay the State of New Jersey’s costs of 

developing a Source Control Dredge Plan focused on allegedly dioxin-contaminated sediment in the lower six-mile portion of the Passaic River 
described above. The development of this Plan is estimated by the DEP to cost approximately U.S.$2.3 million. The DEP has advised the recipients that 
they are not required to respond to the directive until otherwise notified. Also in December 2005, the DEP and the New Jersey Spill Compensation Fund 
sued YPF Holdings, Tierra, Maxus and several affiliated entities, in addition to Occidental, in connection with dioxin contamination allegedly emanating 
from Chemicals’ former Newark plant and contaminating the lower 17-mile portion of the Passaic River, Newark Bay, other nearby waterways and 
surrounding areas. The defendants have made responsive pleadings and/or filings. The court recently denied motions to dismiss by Occidental Chemical 
Corporation, and by Tierra and Maxus. A motion to dismiss by YPF on personal jurisdiction grants remains pending. 

In June 2007, EPA released a draft Focused Feasibility Study (“FFS”) that outlines several alternatives for remedial action in the lower eight miles 

of the Passaic River. These range from no action (which would result in comparatively little cost) to extensive dredging and capping (which according to 
the draft FFS, EPA estimated  

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could cost from U.S.$0.9 billion to U.S.$2.3 billion), and are all described by EPA as involving proven technologies that could be carried out in the near 
term, without extensive research. Tierra, in conjunction with the other parties of the PRRP group, submitted comments on the draft FFS to EPA, as did a 
number of other interested parties. In September 2007, EPA announced its intention to spend further time considering the comments, to issue a proposed 
plan for public comment in the middle of 2008 and to select a clean-up plan in the last quarter of 2008. Tierra plans to respond to any further EPA 
proposal as may be appropriate at that time. 

In August 2007, the National Oceanic Atmospheric Administration (“NOAA”), as one of the Federal Natural Resources Trustees, sent a letter to the 

parties of the PRRP group, including Tierra and Occidental, requesting that the group enter into an agreement to conduct a cooperative assessment of 
natural resources damages in the Passaic River and Newark Bay. The PRRP group has responded through its common counsel to request that discussions 
relating to such an agreement be postponed until 2008, due in part to the pending FFS proposal by EPA. Tierra plans to continue to participate in the 
PRRP group with regard to this matter. In January 2008, the NOAA sent a letter to us, YPF Holdings, CLH Holdings Inc. and other entities designating 
each as a potentially responsible party (“PRP”). 

As of December 31, 2007, YPF Holdings has reserved approximately U.S.$40.6 million in connection with the foregoing matters related to the 
Passaic River, the Newark Bay and the surrounding area comprising the estimated costs for studies, YPF Holdings’ best estimate of its probable costs in 
connection with certain remediation activities proposed by Tierra, and certain other matters related to the Passaic River and the Newark Bay. However, it 
is possible that other works, including interim remedial measures, may be ordered. How these matters are resolved, including the development of new 
information, the imposition of natural resource damages or the selection of remedial actions differing from the scenarios we have proposed could result 
in Maxus and Tierra incurring additional costs to the amount currently reserved. 

Hudson and Essex Counties, New Jersey. Until the 1970s, Chemicals operated a chromite ore processing plant at Kearny, New Jersey (the “Kearny 

Plant”). Tierra, on behalf of Occidental, is providing financial assurance in the amount of U.S.$20 million for performance of the work associated with 
the issues described below. 

In May 2005, the DEP took two actions in connection with the chrome sites in Hudson and Essex Counties. First, the DEP issued a directive to 
Maxus, Occidental and two other chromium manufacturers (the “Respondents”) directing them to arrange for the cleanup of chromite ore residue at 
three sites in Jersey City and for the conduct of a study by paying the DEP a total of U.S.$19.55 million. Second, the DEP filed a lawsuit against 
Occidental and two other entities in state court in Hudson County seeking, among other things, cleanup of various sites where chromite ore residue is 
allegedly located, recovery of past costs incurred by the state at such sites (including in excess of U.S.$2.3 million dollars allegedly spent for 
investigations and studies) and, with respect to certain costs at 18 sites, treble damages. The DEP claims that the defendants are jointly and severally 
liable, without regard to fault, for much of the damages alleged. The parties have engaged in discussions (including mediation) regarding possible 
settlement; however, there is no assurance that these discussions will be successful. 

Pursuant to a request of the DEP, in the second half of 2006, Tierra and certain other parties tested the sediments in a portion of the Hackensack 
River near the former Kearny Plant. A report of those test results has been submitted to the DEP for its comments. What, if any, additional work will be 
required is expected to be determined once the results of this testing have been analyzed by the DEP. 

In November 2005, several environmental groups sent a notice of intent to sue the owner of the property adjacent to the former Kearny Plant and 
five other parties, including Tierra, under the Resource Conservation and Recovery Act. The parties have entered into an agreement that addresses the 
concerns of the environmental groups, and these groups have agreed, at least for now, not to file suit. 

As of December 31, 2007, YPF Holdings has reserved a total of approximately U.S.$19.4 million in connection with the foregoing chrome-related 

matters. Soil action levels for chromium in New Jersey have not been finalized,  

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and the DEP continues to review the proposed action levels. The cost of addressing these chrome-related matters could increase significantly depending 
upon the final soil action levels, the DEP’s response to Tierra’s reports and other developments. 

Painesville, Ohio. From about 1912 through 1976, Chemicals operated manufacturing facilities in Painesville, Ohio (the “Painesville Works”). The 

operations there over the years involved several discrete but contiguous plant sites over an area of about 1,300 acres. The primary area of concern 
historically has been Chemicals’ former chromite ore processing plant (the “Chrome Plant”). The Ohio Environmental Protection Agency (OEPA) has 
approved certain work, including the remediation of specific sites within the former Painesville Works area and work associated with the development 
plans (the “Remediation Work”). The Remediation Work has begun. As the OEPA approves additional projects for the site of the former Painesville 
Works, additional amounts may need to be reserved. YPF Holdings has reserved a total of approximately U.S.$7.3 million as of December 31, 2007 for 
its estimated share of the cost to perform the remedial investigation and feasibility study (“RIFS”), the Remediation Work and other operation and 
maintenance activities at this site. 

Third Party Sites. Pursuant to settlement agreements with the Port of Houston Authority (the “Port”) and other parties, Tierra and Maxus are 
participating (on behalf of Occidental) in the remediation of property adjoining Chemicals’ former Greens Bayou facility where dichloro-diphenyl-
trichloroethane (“DDT”) and certain other chemicals were manufactured. At December 31, 2007, YPF Holdings has reserved approximately U.S.$19.9 
million for its estimated share of future remediation activities associated with the Greens Bayou facility. Additionally, the parties have engaged in 
settlement discussions with Natural Resources Trustees in connection with claims for natural resources damages. The amount of natural resources 
damages and the parties’ obligations in respect thereof are unknown at the present time. 

In June 2005, the EPA designated Maxus as a PRP at the Milwaukee Solvay Coke & Gas Site in Milwaukee, Wisconsin. The basis for this 

designation is Maxus’ alleged status as the successor to Pickands Mather & Co. and Milwaukee Solvay Coke Co., companies that the EPA has asserted 
are former owners or operators of such site. Preliminary work in connection with the RIFS in respect of this site commenced in the second half of 2006. 
YPF Holdings has reserved approximately U.S.$0.24 million as of December 31, 2007 for its estimated share of the costs of the RIFS. Maxus lacks 
sufficient information to determine additional exposure or costs, if any, it might have in respect of this site. 

Maxus is responsible for certain liabilities attributable to Occidental, as successor to Chemicals, in respect of the Malone Service Company 
Superfund Site in Galveston County, Texas. This site is a former waste disposal site where Chemicals is alleged to have sent waste products prior to 
September 1986. 

Chemicals has also been designated as a PRP by the EPA under the Comprehensive Environmental Response, Compensation and Liability Act of 

1980, as amended (“CERCLA”) with respect to a number of third party sites where hazardous substances from Chemicals’ plant operations allegedly 
were disposed or have come to be located. Numerous PRPs have been named at substantially all of these sites. At several of these, Chemicals has no 
known exposure. At December 31, 2007, YPF Holdings had reserved approximately U.S.$2.4 million in connection with its estimated share of the costs 
related to the sites mentioned in this paragraph. 

“Agent Orange” and VCM Litigation. In 2002, Occidental sued Maxus and Tierra in state court in Dallas, Texas seeking a declaration that Maxus 

and Tierra have the obligation under the agreement pursuant to which Maxus sold Chemicals to Occidental to defend and indemnify Occidental from 
and against certain historical obligations of Chemicals, including claims related to “Agent Orange” and vinyl chloride monomer (VCM), 
notwithstanding the fact that said agreement contains a 12-year cut-off for defense and indemnity obligations with respect to most litigation. Tierra was 
dismissed as a party, and the matter was tried in May 2006. The trial court decided that the 12-year cut-off period did not apply and entered judgment 
against Maxus. This decision was affirmed by the Court of Appeals in February 2008. Maxus has appealed this decision to the Texas Supreme Court. If 
affirmed, this decision will require Maxus to accept responsibility for various matters for which it has refused to indemnify Occidental since 1998, which 
could result in the incurrence of material costs in addition to YPF Holdings’ current reserves for this matter. This decision will also require Maxus to 
reimburse Occidental for past costs on these matters. Maxus believes that its current reserves are adequate for these  

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past costs and is currently evaluating the decision of the Court of Appeals. As of December 31, 2007, YPF Holdings had reserved approximately 
U.S.$14.9 million in respect of this matter. 

Turtle Bayou Litigation. In March 2005, Maxus agreed to defend Occidental, as successor to Chemicals, in respect of an action seeking the 

contribution of costs for the remediation of the Turtle Bayou waste disposal site in Liberty County, Texas. Judgment was recently entered in this action, 
and Maxus filed a motion for reconsideration which was partially successful. As a result, the court’s decision requires Maxus to pay, on behalf of 
Occidental, approximately 16% of those costs incurred by one of the plaintiffs. Maxus has appealed. As of December 31, 2007, YPF Holdings has 
reserved U.S.$3.8 million in respect of this matter. 

YPF Holdings, including its subsidiaries, is a party to various other lawsuits, the outcomes of which are not expected to have a material adverse 
affect on the Company’s financial condition. YPF Holdings has established reserves for legal contingencies in situations where a loss is probable and can 
be reasonably estimated. 

YPF Holdings has entered into various operating agreements and capital commitments associated with the exploration and development of its oil 

and gas properties. Such contractual, financial and/or performance commitments are not material, except perhaps those commitments related to the 
development of the Neptune Prospect located in the vicinity of the Atwater Valley Area, Blocks 573, 574, 575, 617 and 618. Total commitment for the 
Neptune Prospect is U.S.$28 million in 2008. 

Dividends Policy 

See “Item 10. Additional Information—Dividends.” 

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ITEM 9. The Offer and Listing 

Shares and ADSs 

New York Stock Exchange 

The ADSs, each representing one Class D Share, are listed on the NYSE under the trading symbol “YPF.” The ADSs began trading on the NYSE 

on June 28, 1993, and were issued by The Bank of New York as depositary (the “Depositary”). 

The following table sets forth, for the five most recent full financial years and for the current financial year, the high and low closing prices in U.S. 

dollars of our ADSs on the NYSE: 

2003 
2004 
2005 
2006 
2007 
2008(1) 
___________ 
(1) 

Through April 11, 2008. 

High 

Low

37.35
44.00
69.20
57.38
50.10
44.49

12.99
35.95
43.20
37.00
34.37
37.75

The following table sets forth, for each quarter of the most recent two financial years and the high and low closing prices in U.S. dollars of our 

ADSs on the NYSE. 

2006: 

2007: 

2008: 

First Quarter 
Second Quarter 
Third Quarter 
Fourth Quarter 

First Quarter 
Second Quarter 
Third Quarter 
Fourth Quarter 

First Quarter 
Second Quarter(1) 

High 

Low

57.38
55.00
45.45
51.49

50.10
46.41
45.91
44.97

43.90
44.49

51.92
37.00
40.01
42.75

41.14
41.42
34.37
37.02

37.75
42.75

____________ 
(1) 

Through April 11, 2008. 

The following table sets forth, for each of the most recent six months and for the current month, the high and low closing prices in U.S. dollars of 

our ADSs on the NYSE. 

2007: 

2008: 

October 
November 
December 

January 
February 
March 

High 

Low

44.97
43.88
43.15

43.80
42.25
43.90

38.70
37.32
37.02

37.76
37.75
39.00

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April(1) 
___________ 
(1) 

Through April 11, 2008. 

High 

Low

44.49

42.75

As of December 31, 2007 there were approximately 224.7 million ADSs outstanding and approximately 93 holders of record of ADSs. Such ADSs 

represented approximately 57.10% of the total number of issued and outstanding Class D shares as of December 2007. Repsol YPF was the holder of 
222.8 million of our ADSs at that date. 

Buenos Aires Stock Market 

The Buenos Aires Stock Market is the principal Argentine market for trading the ordinary shares. 

The Buenos Aires Stock Market (Mercado de Valores de Buenos Aires, or “MERVAL”) is the largest stock market in Argentina and is affiliated 
with the BASE. MERVAL is a corporation consisting of 133 shareholders who are the sole individuals or entities authorized to trade, either as principals 
or agents, in the securities listed on the BASE. Trading on the BASE is conducted either through the traditional auction system from 11 a.m. to 6 p.m. on 
trading days, or through the Computer-Assisted Integrated Negotiation System (Sistema Integrado de Negociación Asistida por Computación, or 
“SINAC”). SINAC is a computer trading system that permits trading in both debt and equity securities and is accessed by brokers directly from 
workstations located in their offices. Currently, all transactions relating to listed negotiable obligations and listed government securities can be 
effectuated through SINAC. In order to control price volatility, MERVAL imposes a 15-minute suspension on trading when the price of a security 
registers a variation in price between 10% and 15% and between 15% and 20%. Any additional 5% variation in the price of a security will result in an 
additional 10-minute successive suspension period. 

Investors in the Argentine securities market are mostly individuals and companies. Institutional investors, which are responsible for a growing 
percentage of trading activity, consist mainly of institutional pension funds created under the amendments to the social security laws enacted in late 
1993. 

Certain information regarding the Argentine stock market is set forth in the table below. 

Market capitalization (in billions of pesos)(1) 
As percent of GDP(1) 
Volume (in millions of pesos) 
Average daily trading volume (in millions of pesos) 
__________ 
(1) 

End-of-period figures for trading on the BASE. 

Source: CNV and Instituto Argentino de Mercado de Capitales. 

2007

2006

1,773
227.2%

209,905
849.82

1,229 
183.4%   

131,984 
532.19 

2005 

771
163%

145,535
577.52

2004

690
152%

82,099
376.26

The following table sets forth, for the five most recent full financial years and for the current financial year, the high and low prices in Argentine 

pesos of our Class D shares on the Buenos Aires Stock Market: 

2003 
2004 
2005 
2006 
2007 
2008(1) 
___________ 
(1) 

Through April 11, 2008. 

141

High 

Low

110.00
130.00
205.00
177.50
153.00
142.00

43.75
103.00
128.00
115.00
110.90
118.00

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
   
  
 
 
   
   
   
  
 
   
   
   
   
   
   
The following table sets forth, for each quarter of the most recent two financial years, the high and low prices in Argentine pesos of our Class D 

shares on the Buenos Aires Stock Market. 

2006: 

2007: 

First Quarter 
Second Quarter 
Third Quarter 
Fourth Quarter 

First Quarter 
Second Quarter 
Third Quarter 
Fourth Quarter 

2008: 

First Quarter 
Second Quarter(1) 

High 

Low

177.50
168.00
141.00
152.95

153.00
143.50
143.50
142.00

142.00
141.50

159.50
115.00
123.50
131.00

126.00
127.00
107.80
118.00

118.00
136.50

___________ 
(1) 

Through April 11, 2008. 

The following table sets forth, for each of the most recent six months and for the current month, the high and low prices in Argentine pesos of our 

Class D shares on the Buenos Aires Stock Market. 

2007: 

October 
November 
December 

2008: 

January 
February 
March 
April(1) 
___________ 
(1) 

Through April 11, 2008. 

High 

Low

145.00
141.25
121.00

140.00
137.00
142.00
141.50

122.25
118.50
116.00

118.00
121.00
125.50
136.50

As of December 31, 2007, there were approximately 8,336 holders of Class D shares. 

Stock Exchange Automated Quotations System International 

The ADSs are also quoted on the Stock Exchange Automated Quotations System International. 

Argentine Securities Market 

The securities market in Argentina is composed of 10 stock exchanges, which are located in the City of Buenos Aires, Bahía Blanca, Corrientes, 
Córdoba, La Plata, La Rioja, Mendoza, Rosario, Santa Fe, and Tucumán. Five of these exchanges (the BASE, Rosario, Córdoba, Mendoza, and Santa 
Fe) have affiliated stock markets and, accordingly, are authorized to quote publicly offered securities. Securities listed on these exchanges include 
corporate equity and bonds and government securities. 

The BASE is the principal and longest-established exchange in Argentina and is currently the fourth largest exchange in Latin America in terms of 

market capitalization. The BASE began operating in 1854 and accounts for approximately 95% of all equity trading in Argentina. Bonds listed on the 
BASE may simultaneously be listed on the Argentine over-the-counter market (Mercado Abierto Electrónico, or “MAE”), pursuant to an agreement  

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between BASE and MAE that stipulates that equity securities are to be traded exclusively on the BASE, while debt securities (both public and private) 
may be traded on both the MAE and the BASE. In addition, through separate agreements with the BASE, all of the securities listed on the BASE may be 
listed and subsequently traded on the Córdoba, Rosario, Mendoza, La Plata and Santa Fe exchanges, by virtue of which many transactions originating on 
these exchanges relate to BASE-listed companies and are subsequently settled in Buenos Aires. Although companies may list all of their capital stock on 
the BASE, controlling shareholders in Argentina typically retain the majority of a company’s capital stock, resulting in a relatively small percentage of 
active trading of the companies’ stock by the public on the BASE. 

Argentina’s equity markets have historically been composed of individual investors, though in recent years there has been an increase in the level of 
investment by banks and insurance companies in these markets. The participation of Argentine pension funds represents an increasing percentage of the 
BASE market; however, Argentine mutual funds (fondos comunes de inversión) continue to have very low participation. As of December 31, 2007, 109 
companies had equity securities listed on the BASE, of which the 10 most traded companies accounted for approximately 78.1% of the total market 
capitalization during 2007. 

Regulation of the Argentine securities market 

The Argentine securities market is regulated and overseen by the CNV, pursuant to Law No. 17,811, as amended, which, in addition to having 
created the CNV, governs the regulation of security exchanges, as well as stockbroker transactions, market operations, the public offering of securities, 
corporate governance matters relating to public companies and the trading of futures and options. Argentine pension funds and insurance companies are 
regulated by separate government agencies, whereas financial institutions are regulated primarily by the Central Bank. 

In Argentina, debt and equity securities traded on an exchange or the over-the-counter market must, unless otherwise instructed by their 
shareholders, be deposited with Stock Exchange Incorporated (Caja de Valores S.A.), a corporation owned by the BASE, MERVAL and certain 
provincial exchanges. Stock Exchange Incorporated is the central securities depositary of Argentina and provides central depositary facilities, as well as 
acting as a clearinghouse for securities trading and as a transfer and paying agent for securities transactions. Additionally, it handles the settlement of 
securities transactions carried out by the BASE and operates SINAC. 

Despite a change in the legal framework of Argentine securities trading in the early 1990s, which permitted the issuance and trading of new 
financial products in the Argentine capital markets, including commercial paper, new types of corporate bonds and futures and options, there is still a 
relatively low level of regulation of the market for Argentine securities and investors’ activities in such markets and enforcement of them has been 
extremely limited. Because of the limited exposure and regulation in these markets, there may be less publicly available information about Argentine 
companies than is regularly published by or about companies in the United States and certain other countries. However, the CNV has taken significant 
steps to strengthen disclosure and regulatory standards for the Argentine securities market, including the issuance of regulations prohibiting insider 
trading and requiring insiders to report on their ownership of securities, with associated penalties for noncompliance. 

In order to improve Argentine securities market regulation, the Argentine government issued Decree No. 677/01 on June 1, 2001 (the 

“Transparency Decree”), which provided certain guidelines and provisions relating to capital markets transparency and best practices. The Transparency 
Decree applies to individuals and entities that participate in the public offering of securities, as well as to stock exchanges. Among its key provisions, the 
decree broadens the definition of a “security,” governs the treatment of negotiable securities, obligates publicly listed companies to form audit 
committees composed of three or more members of the Board of Directors (the majority of whom must be independent under CNV regulations), 
authorizes market stabilization transactions under certain circumstances, governs insider trading, market manipulation and securities fraud and regulates 
going-private transactions and acquisitions of voting shares, including controlling stakes in public companies. 

Before offering securities to the public in Argentina, an issuer must meet certain requirements established by the CNV with regard to the issuer’s 
assets, operating history and management. Only securities approved for a public offering by the CNV may be listed on a stock exchange. However, CNV 
approval does not imply any kind of  

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certification as to the quality of the securities or the solvency of the issuer, even though issuers of listed securities are required to file unaudited quarterly 
financial statements and audited annual financial statements and various other periodic reports with the CNV and the stock exchange on which their 
securities are listed, as well as to report to the CNV and the relevant stock exchange any event related to the issuer and its shareholders that may affect 
materially the value of the securities traded. 

Money laundering regulations 

Recent modifications to Argentine money laundering regulations have resulted in their application to increasing numbers and types of securities 

transactions. 

Argentine Law No. 25,246 (as amended by Law No. 26,087 and Law 26,119) categorizes money laundering as a crime under the Argentine 
Criminal Code and created the Unidad de Información Financiera (“UIF”), an agency of the Ministry of Justice and Human Rights of Argentina 
responsible for investigating questionable transactions. The Argentine Criminal Code defines money laundering as the exchange, transfer, management, 
sale or any other use of money or other assets obtained through a crime, by a person who did not take part in such crime, with the possible result that 
such original assets (or new asset resulting from such original asset) have the appearance of having been obtained through legitimate sources, provided 
that the aggregate value of the assets exceeded Ps.50,000, whether such amount results from one or more connected transactions. 

The money laundering legal framework assigns control and information reporting duties to certain private sector entities, including banks, broker-
dealers, trading companies and insurance companies, in many cases according to highly general criteria. According to the rules of the Guide to Unusual 
or Questionable Financial and Foreign Exchange Transactions (Guía de Transacciones Inusuales o Sospechosas en la Órbita del Sistema Financiero y 
Cambiario) approved by Resolution No. 2/2002 of the UIF (as amended), such entities have an obligation to notify the UIF of transactions falling into 
the following general categories: (a) investments in securities in amounts significantly exceeding the amounts normally invested by a particular investor, 
taking the business of the investor into account; (b) deposits or back-to-back loans in jurisdictions known as tax havens; (c) requests for asset 
management services where the origin of funds is not certain, is unclear or does not relate to the business of the investor; (d) unusual transfers of large 
amounts of securities or interests; (e) unusual and frequent use of special investment accounts; and (f) frequent purchases and sales of securities during 
the same day for the same amount and volume, when such transactions seem unusual and inadequate considering the business of the investor. 

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ITEM 10. Additional Information 

Capital Stock 

Our capital stock consists of Ps.3,933,127,930, divided into 3,764 Class A shares, 7,624 Class B shares, 105,736 Class C shares and 393,195,669 

Class D shares, each fully subscribed and paid, with a par value of ten pesos each and the right to one vote per share. Our total capital stock has not 
changed since December 31, 2004. 

In November 1992, the Privatization Law became effective. Pursuant to the Privatization Law, in July 1993, we completed a worldwide offering of 

160 million Class D shares, representing approximately 45% of our outstanding capital stock, which had been owned by the Argentine government. 
Concurrently with the completion of such offering, the Argentine government transferred approximately 40 million Class B shares to the Argentine 
provinces, which represented approximately 11% of our outstanding capital stock, and made an offer to holders of pension bonds and certain other 
claims to exchange such bonds and other claims for approximately 46.1 million Class B shares, representing approximately 13% of our outstanding 
capital stock. As a result of these transactions, the Argentine government’s ownership percentage of our capital stock was reduced from 100% to 
approximately 30%, including shares that had been set aside to be offered to our employees upon establishment of the terms and conditions by the 
Argentine government in accordance with Argentine law. The shares set aside to be offered to employees represented 10% of our outstanding capital 
stock. 

In July 1997, the Class C shares set aside for the benefit of our employees in conjunction with the privatization, excluding approximately 1.5 
million Class C shares set aside as a reserve against potential claims, were sold through a global public offering, increasing the percentage of our 
outstanding shares of capital stock held by the public to 75%. Proceeds from the transactions were used to cancel debt related to the employee plan, with 
the remainder distributed to participants in the plan. Additionally, Resolution 1,023/06 of the Ministry of Economy and Production, dated December 21, 
2006, effected the transfer to the employees covered by the employee share ownership plan, or PPP, of 1,117,717 Class C shares, corresponding to the 
Class C shares set aside as a reserve against potential claims, and reserving 357,987 Class C shares until a decision was reached in a pending lawsuit. 
Subsequently, with a final decision having been reached in the lawsuit, and consistent with the mechanism of conversion of Class C shares into Class D 
shares established by Decree 628/1997 and its accompanying rules, as of December 28, 2007, 1,381,999 Class C shares had been converted into Class D 
shares. See “Item 4. Information on The Company—History of YPF.” 

The Class A shares held by the Argentine government became eligible for sale in April 1995 upon the effectiveness of legislation which permitted 
the Argentine government to sell such shares. In January 1999, Repsol YPF acquired 52,914,700 Class A shares in block (14.99% of our shares) which 
were converted to Class D shares. Additionally, on April 30, 1999, Repsol YPF announced a tender offer to purchase all outstanding Class A, B, C and 
D shares at a price of U.S.$44.78 per share (the “Offer”). Pursuant to the Offer, in June, 1999, Repsol YPF acquired an additional 82.47% of our 
outstanding capital stock. On November 4, 1999, Repsol YPF acquired an additional 0.35%. On June 7, 2000, Repsol YPF announced a tender offer to 
exchange newly issued Repsol YPF’s shares for 2.16% of our Class B, C and D shares held by minority shareholders. Pursuant to the tender offer, and 
after the merger with Astra, as of December 31, 2007, Repsol YPF owns 389,548,900 Class D shares and therefore controls us through a 99.04% 
ownership interest. On February 21, 2008, Petersen Energía S.A. (“Petersen Energía”) purchased 58,603,606 of our ADSs, representing 14.9% of our 
capital stock, from Repsol YPF for U.S.$2,235 million (the “Petersen Transaction”). In addition, Repsol YPF also granted certain members of the 
Eskenazi family, who are affiliates of Petersen Energía, options to purchase up to an additional 10.1% of our outstanding capital stock within four years 
(the “Petersen Options”). 

Memorandum and Articles of Association 

YPF’s by-laws were approved by National Executive Decree No. 1,106, dated May 31, 1993, and notarized by public deed No. 175, dated June 15, 

1993 at the National Notary Public Office, sheet 801 of the National Registry, and registered at the Inspection Board of Legal Entities of the Argentine 
Republic on the same date, June 15, 1993 under number 5,109 of the book of Corporations number 113, volume “A.” 

At a Shareholder’s Meeting on April 13, 2007, YPF’s shareholders approved an amendment to YPF’s by-laws which broadens the scope of YPF’s 
permissible activities to include work with non-fossil fuels, biofuels, and their components, as well as the production, processing, transport, marketing 
and storage of grain and its derivatives. The amendment is currently under the registration process with the Argentine National Securities Commission 
(“NSC”). 

For a detailed description of YPF’s object and purpose, see “Item 4. Information on the Company.” YPF’s object is set forth in Section 4 of its by-

laws. Copies of the by-laws, which have been filed as described in “Exhibit Index” in this annual report, are also available at the offices of YPF. 

Pursuant to Argentine Corporations Law No. 19,550 (the “Corporations Law”), the Board of Directors or the Statutory Audit Committee (as defined 

below) shall call either annual general or extraordinary shareholders’ meetings in the cases provided by laws and whenever they consider appropriate. 
Shareholders representing not less than five percent of YPF’s capital stock may also request that a shareholders’ meeting be called. 

A shareholders’ meeting shall be called at least twenty days prior to the meeting date by notice published in the legal publications journal for a 
period of five days. The notice shall include the nature, date, time and place of the meeting, the agenda to be discussed and the specific requirements 
shareholders must meet to attend the meeting. 

In order to attend the meeting, shareholders must obtain a deposit certificate from a broker or from the depository trust company. This certificate 

will allow each shareholder to be registered in the attendance book which closes three business days before the date on which the meeting will be held. 
YPF will issue to each shareholder a deposit certificate required for admission into the meeting. Shares certified and registered in the attendance book 
shall not be disposed of before the meeting is held unless the corresponding deposit is cancelled. 

Directors, members of the Statutory Audit Committee and senior managers are both entitled and required to attend all shareholders’ meetings. 
These persons may only exercise voting power to the extent they have been previously registered as shareholders, in accordance with the provisions 
described in the above paragraph. Nevertheless, these persons are not allowed to vote on any proposal regarding to the approval of their management 
duties or their removal for cause. 

Shareholders’ Meetings 

Pursuant to the Argentine Corporations Law, the Board of Directors or the Supervisory Committee shall call either annual ordinary or extraordinary 
shareholders’ meetings in the cases provided by laws and whenever they consider appropriate. Shareholders representing not less than 5% of our capital 
stock may also request that a shareholders’ meeting be called. 

Shareholders’ meetings may be ordinary meetings or extraordinary meetings. We are required to convene and hold an ordinary meeting of 

shareholders within four months of the close of each fiscal year to consider the matters specified in the first two paragraphs of Section 234 of the 
Argentine Corporations Law, such as the approval of our financial statements, allocation of net income for such fiscal year, approval of the reports of the 
Board of Directors and the Audit Committee and election, performance and remuneration of directors and members of the Supervisory Committee. In 
addition, pursuant to the Transparency Decree, at ordinary shareholders’ meetings, shareholders must consider (i) the disposition of, or creation of any 
lien over, assets as long as such decision has not been performed in the ordinary course of business and (ii) the execution of administration or 
management agreements and whether to approve any agreement by virtue of which the assets or services provided to us are paid partial or totally with a 
percentage of our income, results or earnings, if the payment is material when measured against the volume of the ordinary course of business and our 
shareholders’ equity. Other matters which may be considered at an ordinary shareholders’ meeting convened and held at any time include the 

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
responsibility of directors and members of the Supervisory Committee, capital increases and the issuance of certain notes. Extraordinary 
shareholders’ meetings may be called at any time to consider matters beyond the authority of an ordinary meeting including, without limitation, the 
amendment of our bylaws, issuance of debentures, early dissolution, merger, spin-off, reduction of capital stock and redemption of shares, 
transformation from one type of entity to another and limitation or suspension of shareholders’ preemptive rights. 

Shareholders’ meetings may be called by the Board of Directors or the members of the Supervisory Committee whenever required by law or 
whenever they deem it necessary. Also, the Board of Directors or the members of the Supervisory Committee are required to call shareholders’ meetings 
upon the request of shareholders representing an aggregate of at least five percent of our outstanding share capital, in which case the meeting must take 
place within 40 days of such shareholders’ request. If the board or the Supervisory Committee fails to call a meeting following such a request, a meeting 
may be ordered by the CNV or by the courts. 

Notices of meetings 

Notice of shareholders’ meetings must be published for five days in the Official Gazette, in an Argentina newspaper of wide circulation and in the 

bulletin of the Buenos Aires Stock Exchange, at least 20 but not more than 45 days prior to the date on which the meeting is to be held. Such notice must 
include information regarding the type of meeting to be held, the date, time and place of such meeting and the agenda. If a quorum is not available at 
such meeting, a notice for a meeting on second call, which must be held within 30 days of the date on which the first meeting was called, must be 
published for three days at least eight days before the date of the meeting on second call. The above-described notices of shareholders’ meetings may be 
effected simultaneously for the meeting on second call to be held on the same day as the first meeting, only in the case of ordinary meetings. 
Shareholders’ meetings may be validly held without notice if all the shares of our outstanding share capital are present and resolutions are adopted by 
unanimous vote of shares entitled to vote. 

Quorum and voting requirements 

Except as described below, the quorum for ordinary meetings of shareholders on first call is a majority of the shares entitled to vote, and action may 

be taken by the affirmative vote of an absolute majority of the shares present that are entitled to vote on such action. If a quorum is not available at the 
first meeting, a meeting on second call may be held at which action may be taken by the holders of an absolute majority of the shares present, regardless 
of the number of such shares. The quorum for an extraordinary shareholders’ meeting on first call is 60% of the shares entitled to vote, and if such 
quorum is not available, a meeting or second call may be held, at which action may be taken by the holders of an absolute majority of the shares present, 
regardless of the number of such shares. 

Our bylaws establish that in order to approve (i) the transfer of our domicile outside Argentina, (ii) a fundamental change of the corporate purpose 
set forth in our bylaws, (iii) delisting of our shares in the BASE or NYSE, and (iv) a spin-off by us, when as a result of such spin-off more than 25% of 
our assets are transferred to the resulting corporations, a majority of the shares representing 75% or more of our voting shares is required, both in first 
and second call. Our bylaws also establish that in order to approve (i) certain amendments to our bylaws concerning tender offers of shares (as described 
below), (ii) the granting of certain guarantees in favor of our shareholders, (iii) full stop of refining, commercialization and distribution activities and (iv) 
rules regarding appointment, election and number of members of our Board of Directors, a majority of the shares representing 66% or more of our 
voting shares is required, both in first and second call, as is the affirmative vote of the Class A Shares, granted in a special meeting of the holders of such 
shares. 

In order to attend the meeting, shareholders must deposit their shares, or a certificate representing book-entry shares issued by a bank, clearing 

house or depository trust company, with us. This certificate will allow each shareholder to be registered in the attendance book which closes three 
business days before the date on which the meeting will be held. We will issue to each shareholder a deposit certificate required for admission into the 
meeting. Shares certified and registered in the attendance book may not be disposed of before the meeting is held unless the corresponding deposit is 
cancelled. 

Under the Corporations Law, foreign companies that own shares in an Argentine corporation are required to register with the Superintendent of 

Corporations (Inspección General de Justicia, or IGJ) in order to exercise certain shareholder rights, including voting rights. Such registration requires 
the filing of certain corporate and accounting documents. Accordingly, if a shareholder owns Class D shares directly (rather than in the form of ADSs) 
and is a non-Argentine company, and such shareholder fails to register with the IGJ, the ability to exercise its rights as a holder of Class D shares may be 
limited. 

Directors, members of the Supervisory Committee and senior managers are both entitled and required to attend all shareholders’ meetings. These 

persons may only exercise voting power to the extent they have been previously registered as shareholders, in accordance with the provisions described 
in the above paragraph. Nevertheless, these persons are not allowed to vote on any proposal regarding the approval of their management duties or their 
removal for cause. 

Shareholders who have a conflict of interest with us and who do not abstain from voting may be liable for damages to us, but only if the transaction 
would not have been approved without such shareholders’ votes. Furthermore, shareholders who willfully or negligently vote in favor of a resolution that 
is subsequently declared void by a court as contrary to the law or our bylaws may be held jointly and severally liable for damages to us or to other third 
parties, including shareholders. 

Directors 

Election of Directors 

Our business and affairs are managed by the Board of Directors in accordance with our bylaws and the Argentine Corporations Law No. 19,550 

(the “Argentine Corporations Law”). Our bylaws provide for a Board of Directors of 11 to 21 members, and up to an equal number of alternates. 
Alternates are those elected by the shareholders to replace directors who are absent from meetings or who are unable to exercise their duties, when and 
for whatever period appointed to do so by the Board of Directors. Alternates have the responsibilities, duties and powers of directors only if and to the 
extent they are called upon to attend board meetings or for such longer period as they may act as replacements. 

Directors shall hold office from one to three years, as determined by the shareholders’ meetings. Since the shareholders’ general ordinary and 

extraordinary meeting held on March 7, 2008, our Board of Directors is composed of 17 directors and 14 alternates. 

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In accordance with our bylaws, the Argentine government, sole holder of Class A shares, is entitled to elect one director and one alternate. The 

current director representative of Class A shares was appointed to serve up to a one-year term. 

Under the Argentine Corporations Law, a majority of our directors must be residents of Argentina. All directors must establish a legal domicile in 

Argentina for service of notices in connection with their duties. 

Our bylaws require the Board of Directors to meet at least once every quarter in person or by video conference, and a majority of directors is 
required in order to constitute a quorum. If a quorum is not met one hour after the start time set for the meeting, the President or his substitute may invite 
alternates of the same class as that of the absent directors to join the meeting, or call a meeting for another day. Resolutions must be adopted by a 
majority of the directors present, and the President or his substitute is entitled to cast the deciding vote in the event of a tie. 

The composition of certain of our Board committees, as well as the roles of certain members thereof, will change upon the implementation of the 

requirements of the shareholders’ agreement between Repsol YPF and Petersen Energía. See “Item 7. Major Shareholders and Related Party 
Transactions—Principal and Selling Shareholders.” 

Duties and liabilities of Directors 

In accordance with the Argentine Corporations Law, directors have an obligation to perform their duties with loyalty and with the diligence of a 

prudent business person. Directors are jointly and severally liable to us, our shareholders and to third parties for the improper performance of their 
duties, for violating the law or our bylaws or regulations, and for any damage caused by fraud, abuse of authority or gross negligence. Specific duties 
may be assigned to a director by the bylaws, company regulations, or by resolution of the shareholders’ meeting. In such cases, a director’s liability will 
be determined by reference to the performance of such duties. 

Only shareholders, through a shareholders’ meeting may authorize directors to engage in activities in competition with us. Transactions or contracts 

between directors and us in connection with our activities are permitted to the extent they are performed under fair market conditions. Transactions that 
do not comply with the Argentine Corporations Law require prior approval of the Board of Directors or the Supervisory Committee. In addition, these 
transactions must be subsequently approved by the shareholders at a general meeting. If our shareholders do not approve the relevant transaction, the 
directors and members of the Supervisory Committee who approved such transactions are jointly and severally liable for any damages caused to us. 

Any director whose personal interests are adverse to ours shall notify the Board of Directors and the Supervisory Committee and abstain from 

voting on such matters. Otherwise, such director may be held liable to us. 

A director will not be liable if, notwithstanding his presence at the meeting at which a resolution was adopted or his knowledge of such resolution, a 
written record exists of his opposition to such resolution and he reports his opposition to the Supervisory Committee before any complaint against him is 
brought before the Board of Directors, the Supervisory Committee, the shareholders’ meeting, the appropriate governmental agency or the courts. Any 
liability of a director to us terminates upon approval of the director’s actions by the shareholders at a general meeting, provided that shareholders 
representing at least 5% of our capital stock do not object and provided further that such liability does not result from a violation of the law, our bylaws 
or other regulations. 

Foreign Investment Legislation 

Under the Argentine Foreign Investment Law, as amended, and its implementing regulations (together, referred to as the “Foreign Investment 
Legislation”), the purchase of shares of an Argentine corporation by an individual or legal entity domiciled abroad or by an Argentine company of 
“foreign capital” (as defined in the Foreign Investment Legislation) constitutes foreign investment. Currently, foreign investment in industries other than 
broadcasting is not restricted, and no prior approval is required to make foreign investments. No prior approval is required in order to purchase Class D 
Shares or ADSs or to exercise financial or corporate rights thereunder. 

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Dividends 

Under our bylaws, all Class A, Class B, Class C and Class D shares rank equally with respect to the payment of dividends. All shares outstanding as 

of a particular record date share equally in the dividend being paid, except that shares issued during the period to which a dividend relates may be 
entitled only to a partial dividend with respect to such period if the shareholders’ meeting that approved the issuance so resolved. No provision of our 
bylaws or of the Argentine Corporations Law gives rise to future special dividends only to certain shareholders. 

The amount and payment of dividends are determined by majority vote of our shareholders voting as a single class, generally, but not necessarily, 

on the recommendation of the Board of Directors. In addition, under the Argentine Corporations Law, our Board of Directors has the right to declare 
dividends subject to further approval of shareholders at the next shareholders’ meeting. 

We have distributed over 85% of our net income attributable to the years 2001 through 2006 in dividends to our shareholders. We have not adopted 

a formal dividend policy. Any dividend policy adopted will be subject to a number of factors, including our debt service requirements, capital 
expenditure and investment plans, other cash requirements and such other factors as may be deemed relevant at the time. In addition, Repsol YPF and 
Petersen Energía have agreed in the shareholders’ agreement entered into by them in connection with the Petersen Transaction to effect the adoption of a 
dividend policy under which we would distribute 90% of our net income as dividends, starting with our net income for 2007. They have also agreed to 
vote in favor of corporate resolutions requiring us to distribute a special dividend of U.S.$850 million, of which half will be paid in 2008 and half will be 
paid in 2009. See “Item 7. Major Shareholders and Related Party Transactions—Shareholders’ Agreement.” 

The following table sets forth for the periods and dates indicated, the quarterly dividend payments made by us, expressed in pesos. 

Year Ended December 31, 
2002 
2003 
2004 
2005 
2006 
2007 
2008 

1Q

2Q

Pesos Per Share/ADS 
3Q 

4Q 

Total

—
—
—
—
—
6.00
10.76

—
5.00
9.00
8.00
6.00
—
—

—     
2.60     
—     
—     
—     
—     
—     

4.00
—
4.50
4.40
—
—
—

4.00
7.60
13.50
12.40
6.00
6.00
10.76

On March 6, 2007, the Board of Directors approved a dividend of Ps.6.00 per share or per ADS, to be paid out of the reserve for future dividends 

approved by the shareholders’ meeting of April 28, 2006. The dividends were paid on March 21, 2007 and ratified by the shareholders’ meeting of April 
13, 2007. Our shareholders’ meeting held on April 13, 2007, approved a reserve for future dividends of Ps.4,234 million. 

On February 6, 2008, our Board of Directors approved a dividend of Ps.10.76 per share or per ADS, to be paid out of the reserve for future 
dividends approved by our shareholders’ meeting held on April 13, 2007. The dividend was paid on February 29, 2008. Furthermore, our Board of 
Directors has proposed a reserve for future dividends, including the agreed additional dividend, of Ps.6,560 million. This reserve must be approved by 
our shareholders and is scheduled for consideration by them on April 24, 2008. 

Amount Available for Distribution 

Under Argentine law, dividends may be lawfully paid only out of our retained earnings reflected in the annual audited financial statements prepared 

in accordance with Argentine GAAP and CNV regulations and approved by a shareholders’ meeting. The Board of Directors of a listed Argentine 
company may declare interim dividends, in which case each member of the Board and of the Supervisory Committee is jointly and severally liable for 
the repayment of such dividend if retained earnings at the close of the fiscal year in which the interim dividend was paid would not have been sufficient 
to permit the payment of such dividend. 

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According to the Argentine Corporations Law and our by-laws, we are required to maintain a legal reserve of 20% of our then-outstanding capital 

stock. The legal reserve is not available for distribution to shareholders. 

Under our bylaws, our net income is applied as follows: 

•    first, an amount equivalent to at least 5% of net income, plus (less) prior year adjustments, is segregated to build the legal reserve until such 

reserve is equal to 20% of our subscribed capital;

•    second, an amount is segregated to pay the accrued fees of the members of the Board of Directors and of the Supervisory Committee (see 

“Item 6. Directors, Senior Management and Employees—Compensation of Directors and Officers”);

•    third, an amount is segregated to pay dividends on preferred stock, if any; and

•    fourth, the remainder of net income may be distributed as dividends to common shareholders or allocated for voluntary or contingent reserves 

as determined by the shareholders’ meeting. 

Our Board of Directors submits our financial statements for the preceding fiscal year, together with reports thereon by the Supervisory Committee 
and the auditors, at the annual ordinary shareholders’ meeting for approval. Within four months of the end of each fiscal year, an ordinary shareholders’ 
meeting must be held to approve our yearly financial statements and determine the allocation of our net income for such year. 

Under applicable CNV regulations, cash dividends must be paid to shareholders within 30 days of the shareholders’ meeting approving such 
dividends or, in the case in which the shareholders’ meeting delegates the authority to distribute dividends to the Board of Directors, within 30 days of 
the Board of Directors’ meeting approving such dividends. In the case of stock dividends, shares are required to be delivered within three months of our 
receipt of notice of the authorization of the CNV for the public offering of the shares arising from such dividends. In accordance with the Argentine 
Commercial Code, the statute of limitations to the right of any shareholder to receive dividends declared by the shareholders’ meeting is three years from 
the date on which it has been made available to the shareholder. 

Owners of ADSs are entitled to receive any dividends payable with respect to the underlying Class D shares. Cash dividends are paid to the 
Depositary in pesos, directly or through The Bank of New York S.A., although we may choose to pay cash dividends outside Argentina in a currency 
other than pesos, including U.S. dollars. The Deposit Agreement provides that the Depositary shall convert cash dividends received by the Depositary in 
pesos to dollars, to the extent that, in the judgment of the Depositary, such conversion may be made on a reasonable basis, and, after deduction or upon 
payment of the fees and expenses of the Depositary, shall make payment to the holders of ADSs in dollars. 

Preemptive and Accretion Rights 

Except as described below, in the event of a capital increase, a holder of existing shares of a given class has a preferential right to subscribe a 
number of shares of the same class sufficient to maintain the holder’s existing proportionate holdings of shares of that class. Preemptive rights also apply 
to issuances of convertible securities, but do not apply upon conversion of such securities. Pursuant to the Argentine Corporations Law, in exceptional 
cases and on a case-by-case basis when required for our best interest, the shareholders at an extraordinary meeting with a special majority may decide to 
limit or suspend shareholders’ preemptive rights, provided that such limitation or suspension of the shareholders’ preemptive rights is included in the 
agenda of the meeting and the shares to be issued are paid in kind or are issued to cancel preexisting obligations. 

Under our bylaws, we may only issue securities convertible into Class D shares, and the issuance of any such convertible securities must be 

approved by a special meeting of the holders of Class D shares. 

Holders of ADSs may be restricted in their ability to exercise preemptive rights if a registration statement under the Securities Act relating thereto 

has not been filed or is not effective. Preemptive rights are exercisable during the 30 days following the last publication of notice informing shareholders 
of their right to exercise such preemptive  

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rights in the Official Gazette and in an Argentine newspaper of wide circulation. Pursuant to the Argentine Corporations Law, if authorized by an 
extraordinary shareholders’ meeting, companies authorized to make public offering of their securities, such as us, may shorten the period during which 
preemptive rights may be exercised from 30 to ten days following the publication of notice of the offering to the shareholders to exercise preemptive 
rights in the Official Gazette and a newspaper of wide circulation in Argentina. Pursuant to our bylaws, the terms and conditions on which preemptive 
rights may be exercised with respect to Class C shares may be more favorable than those applicable to Class A, Class B and Class D shares. 

Shareholders who have exercised their preemptive rights have the right to exercise accretion rights, in proportion to their respective ownership, with 

respect to any unpreempted shares, in accordance with the following procedure. 

•    Any unpreempted Class A shares will be converted into Class D shares and offered to holders of Class D shares that exercised preemptive 

rights and indicated their intention to exercise additional preemptive rights with respect to any such Class A shares. 

•    Any unpreempted Class B shares will be assigned to those provinces that exercised preemptive rights and indicated their intention to exercise 
accretion rights with respect to such shares; any excess will be converted into Class D shares and offered to holders of Class D shares that 
exercised preemptive rights and indicated their intention to exercise accretion rights with respect to any such Class D shares.

•    Any unpreempted Class C shares will be assigned to any PPP participants who exercised preemptive rights and indicated their intention to 

exercise accretion rights with respect to such shares; any excess will be converted into Class D shares and offered to holders of Class D shares 
that exercised preemptive rights and indicated their intention to exercise accretion rights with respect to any such Class C shares.

•    Any unpreempted rights will be assigned to holders of Class D shares that exercised their preemptive rights and indicated their intention to 

exercise accretion rights; any remaining Class D shares will be assigned pro rata to any holder of shares of another class that indicated his or 
her intention to exercise accretion rights. 

The term for exercise of additional preemptive rights is the same as that fixed for exercising preemptive rights. 

Voting of the Underlying Class D Shares 

Under the by-laws, each Class A, Class B, Class C and Class D share entitles the holder thereof to one vote at any meeting of the shareholders of 
YPF, except that a specified number of Directors is elected by majority vote of each class (except as provided below). See “—Directors—Election of 
Directors” above for information regarding the number of directors that holders of each class of shares are entitled to elect and certain other provisions 
governing nomination and election of directors. The Depositary has agreed that, as soon as practicable after receipt of a notice of any meeting of 
shareholders of YPF, it will mail a notice to the holders of ADRs, evidencing ADSs, registered on the books of the Depositary which will contain the 
following: 

•    a summary in English of the information contained in the notice of such meeting;

•    a statement that the holders of ADRs at the close of business on a specified record date will be entitled, subject to any applicable provisions of 
Argentine law, the by-laws of YPF and the Class D Shares, to instruct the Depositary to exercise the voting rights, if any, pertaining to the 
Class D Shares evidenced by their respective ADSs; and

•    a statement as to the manner in which such instructions may be given to the Depositary.

The Depositary shall endeavor, to the extent practicable, to vote or cause to be voted the amount of Class D Shares represented by the ADSs in 
accordance with the written instructions of the holders thereof. The Depositary will vote Class D Shares, as to which no instructions are received, in 
accordance with the recommendations of the Board of Directors of YPF. The Depositary will not vote Class D Shares, as to which no instructions have 
been received, in accordance with the recommendations of the Board of Directors, however, unless YPF has provided to  

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the Depositary an opinion of Argentine counsel stating that the action recommended by the Board of Directors is not illegal under Argentine law or 
contrary to the by-laws or Board regulations of YPF. In addition, the Depositary will, if requested by the Board of Directors and unless prohibited by any 
applicable provision of Argentine law, deposit all Class D Shares represented by ADSs for purposes of establishing a quorum at meetings of 
shareholders, whether or not voting instructions with respect to such shares have been received. 

Voting 

Under our bylaws, each Class A, Class B, Class C and Class D share entitles the holder thereof to one vote at any meeting of our shareholders, 

except that the Class A shares (i) vote separately with respect to the election of our Board of Directors and are entitled to appoint one director and one 
alternate director and (ii) have certain veto rights, as described below. 

Class A Veto Rights 

Under the bylaws, so long as any Class A shares remain outstanding, the affirmative vote of such shares is required in order to: (i) decide upon the 

merger of the Company; (ii) approve any acquisition of shares by a third party representing more than 50% of the Company’s capital; (iii) transfer to 
third parties all the exploitation rights granted to the Company pursuant to the Hydrocarbons Law, applicable regulations thereunder or the Privatization 
Law, if such transfer would result in the total suspension of the Company’s exploration and production activities; (iv) voluntarily dissolve the Company 
and (v) transfer our legal or fiscal domicile outside Argentina. The actions described in clauses (iii) and (iv) above also require prior approval of the 
Argentine Congress through enactment of a law. 

Reporting Requirements 

Pursuant to our bylaws, any person who, directly or indirectly, through or together with its affiliates and persons acting in concert with it, acquires 
Class D shares or securities convertible into Class D shares, so that such person controls more than 3% of the Class D shares, is required to notify us of 
such acquisition within five days of such acquisition, in addition to complying with any requirements imposed by any other authority in Argentina or 
elsewhere where our Class D shares are traded. Such notice must include the name or names of the person and persons, if any, acting in concert with it, 
the date of the acquisition, the number of shares acquired, the price at which the acquisition was made, and a statement as to whether it is the purpose of 
the person or persons to acquire a greater shareholding in, or control of, us. Each subsequent acquisition by such person or persons requires a similar 
notice. 

Certain Provisions Relating to Acquisitions of Shares 

Pursuant to our bylaws: 

•    each acquisition of shares or convertible securities, as a result of which the acquirer, directly or indirectly through or together with its affiliates 

and persons acting in concert with it (collectively, an “Offeror”), would own or control shares that, combined with such Offeror’s prior 
holdings, if any, of shares of such class, would represent:

•    15% or more of the outstanding capital stock, or

•    20% or more of the outstanding Class D shares; and

•    each subsequent acquisition by an Offeror (other than subsequent acquisitions by an Offeror owning or controlling more than 50% of our 

capital prior to such acquisition) (collectively, “Control Acquisitions”), must be carried out in accordance with the procedure described under 
“Restrictions on Control Acquisitions” below. 

In addition, any merger, consolidation or other combination with substantially the same effect involving an Offeror that has previously carried out a 

Control Acquisition, or by any other person or persons, if such transaction would have for such person or persons substantially the same effect as a 
Control Acquisition (“Related Party Share Acquisition”), must be carried out in accordance with the provisions described under “—Restrictions on 
Related Party Share Acquisitions.” The voting, dividend and other distribution rights of any shares acquired in a Control Acquisition or a Related Party 
Share Acquisition carried out other than in accordance with such provisions will be suspended, and such shares will not be counted for purposes of 
determining the existence of a quorum at shareholders’ meetings. 

Restrictions on Control Acquisitions 

Prior to consummating any Control Acquisition, an Offeror must obtain the approval of the Class A shares, if any are outstanding, and make a 
public tender offer for all of our outstanding shares and convertible securities. The Offeror will be required to provide us with notice of, and certain 
specified information with respect to, any such tender offer at least fifteen business days prior to the commencement of the offer, as well as the terms 
and conditions of any agreement with any shareholder proposed for the Control Acquisition (a “Prior Agreement”). We will send each shareholder and 
holder of convertible securities a copy of such notice at the Offeror’s expense. The Offeror is also required to publish a notice containing substantially 
the same information in a newspaper of general circulation in Argentina, New York and each other city in which our securities are traded on an 
exchange or other securities market, at least once per week, beginning on the date notice is provided to us, until the offer expires. 

Our Board of Directors shall call a special meeting of the Class A shares to be held ten business days following the receipt of such notice for the 

purpose of considering the tender offer. If the special meeting is not held, or if the shareholders do not approve the tender offer at such meeting, neither 
the tender offer nor the proposed Control Acquisition may be completed. 

The tender offer must be carried out in accordance with a procedure specified in our bylaws and in accordance with any additional or stricter 
requirements of jurisdictions, exchanges or markets in which the offer is made or in which our securities are traded. Under the bylaws, the tender offer 
must provide for the same price for all shares tendered, which price may not be less than the highest of the following (the “Minimum Price”): 

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(i) the highest price paid by, or on behalf of, the Offeror for Class D shares or convertible securities during the two years prior to the notice 

provided to us, subject to certain antidilution adjustments with respect to Class D shares; 

(ii) the highest closing price for the Class D shares on the BASE during the thirty-day period immediately preceding the notice provided to us, 

subject to certain antidilution adjustments; 

(iii) the price resulting from clause (ii) above multiplied by a fraction, the numerator of which shall be the highest price paid by or on behalf of 
the Offeror for Class D shares during the two years immediately preceding the date of the notice provided to us and the denominator of which shall 
be the closing price for the Class D shares on the BASE on the date immediately preceding the first day in such two-year period on which the 
Offeror acquired any interest in or right to any Class D shares, in each case subject to certain antidilution adjustments; and 

(iv) the net earnings per Class D share during the four most recent full fiscal quarters immediately preceding the date of the notice provided to 
us, multiplied by the higher of (A) the price/earnings ratio during such period for Class D shares (if any) and (B) the highest price/earnings ratio for 
us in the two-year period immediately preceding the date of the notice provided to us, in each case determined in accordance with standard 
practices in the financial community. 

Any such offer must remain open for a minimum of 20 days and a maximum of 30 days following the provision of notice to the shareholders or 
publication of the offer, plus an additional period of a minimum of five days and a maximum of ten days required by CNV regulations, and shareholders 
must have the right to withdraw tendered shares at any time up until the close of the offer. Following the close of such tender offer, the Offeror will be 
obligated to acquire all tendered shares or convertible securities, unless the number of shares tendered is less than the minimum, if any, upon which such 
tender offer was conditioned, in which case the Offeror may withdraw the tender offer. Following the close of the tender offer, the Offeror may 
consummate any Prior Agreement within thirty days following the close of the tender offer; provided, however, that if such tender offer was conditioned 
on the acquisition of a minimum number of shares, the Prior Agreement may be consummated only if such minimum was reached. If no Prior 
Agreement existed, the Offeror may acquire the number of shares indicated in the notice provided to us on the terms indicated in such notice, to the 
extent such number of shares were not acquired in the tender offer, provided that any condition relating to a minimum number of shares tendered has 
been met. 

Restrictions on Related Party Share Acquisitions 

The price per share to be received by each shareholder in any Related Party Share Acquisition must be the same as, and must not be less, than the 

highest of the following: 

(i) the highest price paid by or on behalf of the party seeking to carry out the Related Party Share Acquisition (an “Interested Shareholder”) for 

(A) shares of the class to be transferred in the Related Party Share Acquisition (the “Class”) within the two-year period immediately preceding the 
first public announcement of the Related Party Share Acquisition or (B) shares of the Class acquired in any Control Acquisition, in each case as 
adjusted for any stock split, reverse stock split, stock dividend or other reclassification affecting the Class; 

(ii) the highest closing sale price of shares of the Class on the BASE during the thirty days immediately preceding the announcement of the 

Related Party Share Acquisition or the date of any Control Acquisition by the Interested Shareholder, adjusted as described above; 

(iii) the price resulting from clause (ii) multiplied by a fraction, the numerator of which shall be the highest price paid by or on behalf of the 
Interested Shareholder for any share of the Class during the two years immediately preceding the announcement of the Related Party Transaction 
and the denominator of which shall be the closing sale price for shares of the Class on the date immediately preceding the first day in the two-year 
period referred to above on which the Interested Shareholder acquired any interest or right in shares of the Class, in each case as adjusted as 
described above; and 

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(iv) the net earnings per share of the shares of the Class during the four most recent full fiscal quarters preceding the announcement of the 
Related Party Transaction multiplied by the higher of the (A) the price/earnings ratio during such period for the shares of the Class and (B) the 
highest price/earnings ratio for us in the two-year period preceding the announcement of the Related Party Transaction, in each case determined in 
accordance with standard practices in the financial community. 

In addition, any transaction that would result in the acquisition by any Offeror of ownership or control of more than 50% of our capital stock, or 

that constitutes a merger or consolidation of us, must be approved in advance by the Class A shares while any such shares remain outstanding. 

Taxation 

Argentine Tax Considerations 

The following discussion is a summary of the material Argentine tax considerations relating to the purchase, ownership and disposition of our Class 

D shares or ADSs. 

Dividends tax 

Dividends paid on our Class D shares or ADSs, whether in cash, property or other equity securities, are not subject to income tax withholding, 
except for dividends paid in excess of our taxable accumulated income for the previous fiscal period, which are subject to withholding at the rate of 35% 
in respect of such excess. This is a final tax and it is not applicable if dividends are paid in shares (acciones liberadas) rather than in cash. 

Capital gains tax 

Due to the amendments made to the Argentine Income Tax Law (the “AITL”) by Law 25,414 and Decree 493/2001, and the abrogation of Law 

25,414 by Law 25,556, it is not clear whether certain amendments concerning capital gains taxes are in effect or not. Although opinion No. 351 of the 
National Treasury General Attorney Office solved the most important matters related to capital gains taxes, other issues remain unclear. 

Resident individuals 

Under what we believe to be a reasonable interpretation of existing applicable tax laws and regulations: (i) income derived from the sale, exchange 
or other disposition of our Class D shares or ADSs by resident individuals who do not sell or dispose of Argentine shares on a regular basis would not be 
subject to Argentine income tax, and (ii) although there still exists uncertainty regarding this issue, income derived from the sale, exchange or other 
disposition of our Class D shares or ADSs by resident individuals who sell or dispose of Argentine shares on a regular basis should be exempt from 
Argentine income tax to the extent our Class D shares or ADSs are listed on stock exchanges or securities markets. 

Foreign beneficiaries 

Capital gains obtained by non resident individuals or entities from the sale, exchange or other disposition of our Class D shares or ADSs are exempt 

from income tax. Pursuant to a reasonable construction of the AITL, and although the matter is not completely free from doubt, such treatment should 
apply to those foreign beneficiaries that qualify as “offshore entities” for purposes of the AITL if the shares are not listed in Argentina or any other 
jurisdiction. For this purpose, an “offshore entity” is any foreign legal entity if pursuant to its bylaws or to the applicable regulatory framework (i) its 
principal activity is to invest outside the jurisdiction of its incorporation and/or (ii) it cannot perform in such jurisdiction certain transactions. On the 
contrary, there is no doubt that such exemption is not available if the shares are publicly traded on a stock exchange. 

Local entities 

Capital gains obtained by Argentine entities (in general, entities organized or incorporated under Argentine law, certain traders and intermediaries, 

local branches of non-Argentine entities, sole proprietorships and individuals  

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carrying on certain commercial activities in Argentina) derived from the sale, exchange or other disposition of our Class D shares or ADSs are subject to 
income tax at the rate of 35%. Losses arising from the sale of our Class D shares or ADSs can be applied only to offset capital gains arising from sales of 
shares or ADSs. 

Personal assets tax 

Argentine entities, such as us, have to pay the personal assets tax corresponding to (i) individuals and undivided estates; (ii) foreign individuals and 

undivided estates; and (iii) foreign entities, for the holding of our shares or ADSs at December 31 of each year. The applicable tax rate is 0.5% and is 
levied on the equity value (valor patrimonial proporcional), or the book value, of the shares arising from the latest financial statements at December 31 
of each year. Pursuant to the Personal Assets Tax Law, we are entitled to seek reimbursement of such paid tax from the applicable shareholders, 
including by withholding, foreclosing on the shares, or by withholding dividends. 

Tax on debits and credits in bank accounts 

Tax on debits and credits in bank accounts is levied, with certain exceptions, for debits and credits on checking accounts maintained at financial 
institutions located in Argentina and other transactions that are used as a substitute for the use of checking accounts. The general tax rate is 0.6% for 
each debit and credit, although in certain cases an increased rate of 1.2% or a decreased rate may apply. The account holder may use up to 34% of the 
tax paid when the 0.6% rate is applicable, and up to 17% of the tax when the 1.2% rate is applicable, as a credit against other federal taxes. 

Value added tax 

The sale, exchange or other disposition of our Class D shares or ADSs and the distribution of dividends are exempt from the value added tax. 

Transfer taxes 

The sale, exchange or other disposition of our Class D shares or ADSs is not subject to transfer taxes. 

Stamp taxes 

Stamp taxes may apply in certain Argentine provinces in case transfer of our Class D shares or ADSs is performed or executed in such jurisdictions 

by means of written agreements. Transfer of our Class D shares or ADSs is exempt from stamp tax in the City of Buenos Aires. 

Other taxes 

There are no Argentine inheritance or succession taxes applicable to the ownership, transfer or disposition of our Class D shares or ADSs. In 
addition, neither the minimum presumed income tax nor any local gross turnover tax is applicable to the ownership, transfer or disposition of our Class 
D shares or ADSs. 

In the case of litigation regarding the Class D shares or ADSs before a court of the City of Buenos Aires, a 3% court fee would be charged, 

calculated on the basis of the claim. A 3% surcharge calculated on the amount of the court tax would also be imposed by the City of Buenos Aires 
Attorneys Social Security Association. 

Tax treaties 

Argentina has tax treaties for the avoidance of double taxation currently in force with Australia, Austria, Belgium, Bolivia, Brazil, Canada, Chile, 
Denmark, Finland, France, Germany, Italy, the Netherlands, Norway, Spain, Sweden, Switzerland and the United Kingdom. There is currently no tax 
treaty or convention in effect between Argentina and the United States. It is not clear when, if ever, a treaty will be ratified or entered into effect. As a 
result, the Argentine tax consequences described in this section will apply, without modification, to a holder of our Class D shares or ADSs that is a U.S. 
resident. Foreign shareholders located in certain jurisdictions with a tax  

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treaty in force with Argentina may be (i) exempted from the payment of the personal assets tax and (ii) entitled to apply for reduced withholding tax 
rates on payments to be made by Argentine parties. 

United States Federal Income Tax Considerations 

The following are the material U.S. federal income tax consequences of purchasing, owning and disposing of our Class D shares or ADSs. This 
discussion does not purport to be a comprehensive description of all of the tax considerations that may be relevant to a particular person’s decision to 
acquire such securities. 

This discussion applies only if you are a U.S. Holder (as defined below) and you hold our Class D shares or ADSs, as capital assets for tax purposes 

and it does not describe all of the tax consequences that may be relevant to holders subject to special rules, such as: 

•    certain financial institutions; 

•    insurance companies; 

•    dealers and traders in securities or foreign currencies;

•    persons holding Class D shares or ADSs, as part of a hedge, “straddle,” integrated transaction or similar transaction; 

•    persons whose functional currency for U.S. federal income tax purposes is not the U.S. dollar;

•    partnerships or other entities classified as partnerships for U.S. federal income tax purposes;

•    persons liable for the alternative minimum tax; 

•    tax-exempt organizations; or 

•    persons holding Class D shares or ADSs, that own or are deemed to own ten percent or more of our voting stock. 

If an entity that is classified as a partnership for U.S. federal income tax purposes holds Class D shares or ADSs, the U.S. federal income tax 
treatment of a partner will generally depend on the status of the partner and upon the activities of the partnership. Partnerships holding Class D shares or 
ADSs and partners in such partnerships should consult their tax advisers as to the particular U.S. federal income tax consequences of holding and 
disposing of the Class D shares or ADSs. 

This discussion is based on the Internal Revenue Code of 1986, as amended (the “Code”), administrative pronouncements, judicial decisions and 
final, temporary and proposed Treasury regulations, all as of the date hereof. These laws are subject to change, possibly on a retroactive basis. It is also 
based in part on representations by the Depositary and assumes that each obligation under the Deposit Agreement and any related agreement will be 
performed in accordance with its terms. 

You are a “U.S. Holder” if you are a beneficial owner of Class D shares or ADSs and are, for U.S. federal tax purposes: 

•    a citizen or individual resident of the United States;

•    a corporation, or other entity taxable as a corporation, created or organized in or under the laws of the United States or any political 

subdivision thereof; or 

•    an estate or trust the income of which is subject to U.S. federal income taxation regardless of its source. 

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In general, if you hold ADSs, you will be treated as the holder of the underlying shares represented by those ADSs for U.S. federal income tax 

purposes. Accordingly, no gain or loss will be recognized if you exchange ADSs for the underlying shares represented by those ADSs. 

The U.S. Treasury has expressed concerns that parties to whom ADSs are pre-released, or intermediaries in the chain of ownership between U.S. 
Holders and the issuer of the security underlying the ADSs, may be taking actions that are inconsistent with the claiming of foreign tax credits by U.S. 
Holders of ADSs. Such actions would also be inconsistent with the claiming of the reduced rate of tax, described below, applicable to dividends received 
by certain non-corporate holders. Accordingly, the analysis of the creditability of Argentine taxes, and the availability of the reduced tax rate for 
dividends received by certain non-corporate holders, each described below, could be affected by actions taken by such parties or intermediaries. 

Please consult your own tax advisers concerning the U.S. federal, state, local and foreign tax consequences of purchasing, owning and disposing of 

Class D shares or ADSs in your particular circumstances. 

This discussion assumes that the Company is not, and will not become, a passive foreign investment company, as described below. 

Taxation of distributions 

Distributions paid on Class D shares or ADSs, other than certain pro rata distributions of ordinary shares, will be treated as a dividend to the extent 

paid out of current or accumulated earnings and profits (as determined under U.S. federal income tax principles). Because the Company does not 
maintain calculations of earnings and profits under U.S. federal income tax principles, it is expected that distributions will generally be reported to U.S. 
Holders as dividends. Subject to applicable limitations (including a minimum holding period requirement) and the discussion above regarding concerns 
expressed by the U.S. Treasury, certain dividends paid by qualified foreign corporations to certain non-corporate U.S. Holders in taxable years beginning 
before January 1, 2011, are taxable at a maximum rate of 15%. A foreign corporation is treated as a qualified foreign corporation with respect to 
dividends paid on stock that is readily tradable on an established securities market in the United States, such as the New York Stock Exchange where our 
ADSs are traded. You should consult your own tax advisers to determine whether the favorable rate may apply to dividends you receive and whether you 
are subject to any special rules that limit your ability to be taxed at this favorable rate. The amount of a dividend will include any amounts withheld by 
us in respect of Argentine taxes. The amount of the dividend will be treated as foreign-source dividend income to you and will not be eligible for the 
dividends-received deduction generally allowed to U.S. corporations under the Code. 

Dividends paid in Argentine pesos will be included in your income in a U.S. dollar amount calculated by reference to the exchange rate in effect on 
the date of your or in the case of ADSs, the Depositary’s receipt of the dividend, regardless of whether the payment is in fact converted into U.S. dollars. 
If the dividend is converted into U.S. dollars on the date of receipt, you generally should not be required to recognize foreign currency gain or loss in 
respect of the dividend income. You may have foreign currency gain or loss if you do not convert the amount of such dividend into U.S. dollars on the 
date of its receipt. 

Subject to applicable limitations (including a minimum holding period requirement) that may vary depending upon your circumstances and subject 
to the discussion above regarding concerns expressed by the U.S. Treasury, Argentine income taxes withheld from dividends on Class D shares or ADSs 
will be creditable against your U.S. federal income tax liability. The rules governing the foreign tax credit are complex. You are urged to consult your 
tax advisers regarding the availability of the foreign tax credit under your particular circumstances. 

Sale and other disposition of Class D shares or ADSs 

For U.S. federal income tax purposes, gain or loss you realize on the sale or other disposition of Class D shares or ADSs will be capital gain or loss, 
and will be long-term capital gain or loss if you held the Class D shares or ADSs for more than one year. The amount of your gain or loss will equal the 
difference between the amount realized on the disposition and your tax basis in the Class D shares or ADSs disposed of. Such gain or loss will generally 
be U.S.-source gain or loss for foreign tax credit purposes. The deductibility of capital losses is subject to limitations. 

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Passive foreign investment company rules 

The Company believes that it will not be considered a “passive foreign investment company” (“PFIC”) for U.S. federal income tax purposes for the 
taxable year of 2008, and does not expect to be considered one in the foreseeable future. However, since PFIC status depends upon the composition of a 
company’s income and assets and the market value of its assets (including, among other things, less than 25 percent owned equity investments) from 
time to time, there can be no assurance that the Company will not be considered a PFIC for any taxable year. If the Company were treated as a PFIC for 
any taxable year during which you held a Class D share or ADS, certain adverse consequences could apply to you. 

If the Company is treated as a PFIC for any taxable year during which you held a Class D share or ADS, any gain you recognize on a sale or other 

disposition of the Class D share or ADS would be allocated ratably over your holding period for the Class D share or ADS. The amounts allocated to the 
taxable year of the disposition and to any year before the Company became a PFIC would be taxed as ordinary income. The amount allocated to each 
other taxable year would be subject to tax at the highest rate in effect for individuals or corporations, as appropriate, and an interest charge would be 
imposed on the amount allocated to such taxable year. Further, any distribution in respect of ADSs or ordinary shares in excess of 125 percent of the 
average of the annual distributions on ADSs or ordinary shares received by you during the preceding three years or your holding period, whichever is 
shorter, would be subject to taxation in the manner just described for gains. Certain elections may be available to you (including a mark to market 
election) that may mitigate the adverse consequences resulting from PFIC status. 

In addition, if the Company were to be treated as a PFIC in a taxable year in which it pays dividends or the prior taxable year, the 15% dividend rate 

discussed above with respect to dividends paid to non-corporate holders would not apply. 

Information reporting and backup withholding 

Payments of dividends and sales proceeds that are made within the United States or through certain U.S.-related financial intermediaries generally 

are subject to information reporting and to backup withholding unless (i) you are a corporation or other exempt recipient or (ii) in the case of backup 
withholding, you provide a correct taxpayer identification number and certify that you are not subject to backup withholding. 

The amount of any backup withholding from a payment to you will be allowed as a credit against your U.S. federal income tax liability and may 

entitle you to a refund, provided that the required information is timely furnished to the Internal Revenue Service. 

Available Information 

YPF is subject to the information requirements of the Exchange Act, except that as a foreign issuer, YPF is not subject to the proxy rules or the 

short-swing profit disclosure rules of the Exchange Act. In accordance with these statutory requirements, YPF files or furnishes reports and other 
information with the SEC. Reports and other information filed or furnished by YPF with the SEC may be inspected and copied at the public reference 
facilities maintained by the SEC at Room 1024, 450 Fifth Street, N. W., Washington, D.C. 20549, and at the SEC’s Regional Offices at Northwestern 
Atrium Center, 500 West Madison Street, Suit 1400, Chicago, Illinois 60611-2511. Copies of such material may be obtained by mail from the Public 
Reference Section of the SEC, 100 F Street, NE., Washington, D.C. 20549, at prescribed rates. You may obtain information on the operation of the 
Public Reference Section by calling the SEC at 1-800-732-0330. The SEC maintains a World Wide Web site on the Internet at http://www.sec.gov that 
contains reports and information statements and other information regarding us. Such reports and other information may also be inspected at the offices 
of the New York Stock Exchange, 11 Wall Street, New York, New York 10005, on which YPF’s American Depositary Shares are listed. 

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ITEM 11. Quantitative and Qualitative Disclosures about Market Risk 

The following quantitative and qualitative information is provided about financial instruments to which we are a party as of December 31, 2007, 
and from which we may incur future gains or losses from changes in market, interest rates, foreign exchange rates or commodity prices. We do not enter 
into derivative or other financial instruments for trading purposes. 

This discussion contains forward-looking statements that are subject to risks and uncertainties. Actual results could vary materially as a result of a 

number of factors including those set forth in “Item 3. Key Information—Risk Factors.” 

Foreign currency exposure 

We generally follow a policy of not hedging our debt obligations in U.S. dollars due to the fact that, in 1991, the Argentine government instituted a 

set of economic reforms known as the “Convertibility Plan,” the centerpiece of which was a fixed one-to-one rate of exchange between the Argentine 
peso and the U.S. dollar. Although in view of the Argentine economic crisis the Argentine authorities implemented a number of monetary and exchange 
control measures, including the abolishment of the Convertibility Law, we have still not hedged our U.S. dollar debt obligations to date. In addition, our 
costs and receipts denominated in currencies other than the Argentine peso, including the U.S. dollar, often do not match. As a result, we are currently 
exposed to risks associated with changes in foreign currency exchange rates. See “Item 3. Key Information—Risk Factors—Risks Relating to 
Argentina—We may be exposed to fluctuations in foreign exchange rates.” 

The table below provides information about our assets and liabilities denominated in currency other than pesos (principally U.S. dollars) that may 

be sensitive to changes in foreign exchange rates, as of December 31, 2007. 

Expected Maturity Date 

Less than 1 
year

1,834
730
140
87

More than 5 
years and 
undetermined

1-3 years

3-5 years 
(in millions of U.S. dollars) 
6
225
101
7

—     
180     
—     
7     

Total

1,894
1,472
306
513

54
337
65
412(1)

Assets 
Accounts payable 
Debt 
Other Liabilities 
____________ 
(1) 

Includes U.S.$318 million corresponding to reserves with undetermined maturity.

Crude oil price exposure 

We entered into price swap agreement in June 1998 on future oil delivery commitment, covering approximately 23.9 million barrels of crude oil, 
for a term of ten years. This swap agreement was entered into in connection with advanced payments received by us for future crude-oil deliveries under 
forward crude oil sale agreement covering these same volumes of crude oil subject to the swap agreement. Under the price swap agreements, we will pay 
a fixed average price of U.S.$18.24 per barrel from 2007 to 2008 and will receive variable selling prices that will depend upon market prices. The 
estimated price effect presented in the table below represents the difference between the prices we will pay and the forecasted prices we will receive 
under the contracts. See “Item 4. Information on the Company—Liquidity and Capital Resources—Transactions with unconsolidated variable interest 
entities.” 

Contract volumes (mmbbl) 
Average Price of Contract (U.S.$/bbl)(1) 
Contract amount (millions of U.S.$) 
Estimated price effect (millions of U.S.$)(1) 

2008 

(Proceeds) Payments
Total 

Fair Value

1.0 
18.24 
18 
(78)   

1.0
18.24
18
(78)

76
(73)

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___________ 
(1)           The expected cash flows were calculated based on a WTI oil price of U.S.$81.66 for all periods, which was the spot price as of December 31, 
2007. The estimated price effect disclosed in the table was calculated as the difference between this price and the contractually agreed settlement price 
per barrel. 

Interest rate exposure 

Our objective in borrowing under fixed rate debt is to satisfy capital requirements that minimize our exposure to interest rate fluctuations. To realize 

our objectives, we have borrowed under fixed rate debt instruments, based on the availability of capital and prevailing market conditions. 

The table below provides information about our assets and liabilities as of December 31, 2007 that may be sensitive to changes in interest rates. 

Less than 1 
year 

    1 – 2 years 

Expected Maturity Date

2 – 3 years

3 – 4 years

4 – 5 years

(in millions of pesos)

More than 5 
years 

Total

Fair Value

2,570 
Libor + 
0.2 - 1.5%      

51 
5.23% - 
7.28%       

    — 

457 
1.25% - 
11.5%       

—

—

—

—

— 

2,570

2,570

—

—

—

—

— 

51

51

—

—

318
9.13%
—

—

—

—

—

205 

10%   
— 

523

457

573

457

Assets 
Variable rate 
Other Receivables (Related 

parties) 

Interest rate 
Fixed rate 
Other Receivables (Related 

parties) 

Interest rate 

Liabilities 
Fixed rate 
YPF’s Negotiable 
Obligations 

Interest rate 
Other Short-term debt 

Interest rate 

ITEM 12. Description of Securities Other than Equity Securities 

Not applicable. 

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PART II 

ITEM 13. Defaults, Dividend Arrearages and Delinquencies 

None. 

ITEM 14. Material Modifications to the Rights of Security Holders and Use of Proceeds 

None. 

ITEM 15. Controls and Procedures 

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures 

As of December 31, 2007, YPF, under the supervision and with the participation of YPF’s management, including our Chief Executive Officer and 
Chief Financial Officer, performed an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in 
Rule 13a-15(f) under the Securities Exchange Act). There are, as described below, inherent limitations to the effectiveness of any control system, 
including disclosure controls and procedures. Accordingly, even effective disclosure controls and procedures can provide only reasonable assurance of 
achieving their control objectives. 

Based on such evaluation, YPF’s Chief Executive Officer and Chief Financial Officer concluded that YPF’s disclosure controls and procedures are 

effective in ensuring that information  relating to YPF, required to be disclosed in reports it files under the Exchange Act is (1) recorded, processed, 
summarized and reported within the time periods specified in the SEC’s rules and forms, and  (2) accumulated and communicated to our management, 
including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. 

Management’s Report on internal control over financial reporting 

Management of YPF is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rule 13a-15(f) 

under the Securities Exchange Act). YPF’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the 
reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting 
principles in Argentina including the reconciliation to U.S. GAAP and includes those policies and procedures that: 

•    Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets 

of YPF; 

•    Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with 
generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorizations of 
YPF’s management and directors; and 

•    Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that 

could have a material effect on the financial statements.

Because of its inherent limitations, any system of internal control over financial reporting, no matter how well designed, may not prevent or detect 
misstatements, due to the possibility that a control can be circumvented or overridden or that misstatements due to error or fraud may occur that are not 
detected. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of 
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. 

Under the supervision and with the participation of YPF’s management, including the Chief Executive Officer and Chief Financial Officer, we 

conducted an evaluation of the effectiveness of our internal control over financial reporting based on the criteria established in Internal Control-
Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”). Based on this assessment, our 
management  

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concluded that, as of December 31, 2007, our internal control over financial reporting was effective based on those criteria. 

Our internal control over financial reporting as of December 31, 2007 has been audited by Deloitte & Co. S. R. L., as independent registered public 

accounting firm, as stated in their report in cluded in the F-pages. 

Changes in Internal Control Over Financial Reporting 

There has been no change in YPF’s internal control over financial reporting (as defined in Rule 13a-15(f) under the Securities Exchange Act) that 

occurred during the period covered by this Annual Report on Form 20-F that has materially affected, or is reasonably likely to materially affect, internal 
control over financial reporting. 

ITEM 16.  

ITEM 16A. Audit Committee Financial Expert 

The Board of Directors has designated Mario Vázquez as YPF’s Audit Committee Financial Expert at the meeting held on March 7, 2008. 

YPF believes that Mr. Vázquez, a member of YPF’s Audit Committee, possesses the attributes of an Audit Committee Financial Expert set 

forth in the instructions to Item 16A of Form 20-F. Mr. Vázquez is an independent director. 

ITEM 16B. Code of Ethics 

YPF has adopted a Code of Ethics applicable to all employees of YPF and the Board of Directors. Since its effective date on August 15, 2003, 

we have not waived compliance with, nor made any amendment to, the Code of Ethics. A copy of our Code of Ethics is filed as an Exhibit to this 
Annual Report. YPF undertakes to provide to any person without charge, upon request, a copy of such Code of Ethics. A copy of the Code of Ethics 
can be requested in writing by telephone or facsimile from us at either of the following addresses: 

Repsol YPF 
U.S. Investors Relations Offices 
410 Park Avenue Floor 4 – Suite 440 
New York, NY 10022 
U.S.A. 
Tel. (212) 588-1087 
Fax (212) 355-0910 

YPF S.A. 
Office of Shareholders Relations 
Avenida Pte. R. Sáenz Peña 777 
C1035AAC Buenos Aires, Argentina 
Tel. (54-11) 4323-1498 
Fax (54-11) 4329-2113 

ITEM 16C. Principal Accountant Fees and Services 

The following table provides information on the aggregate fees billed by our principal accountants, Deloitte & Co. S.R.L. by type of service 

rendered for the periods indicated. 

Services Rendered 

Audit Fees 
Audit-Related Fees (1) 
Tax Fees (2) 

2007

Fees

6,281
284
—

160

Expenses 

Fees 

(thousands of Ps.) 

2006

Expenses

106     
—     
—     

5,220
423
255

84
1
—

  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
  
  
 
  
 
   
   
  
Services Rendered 

All Other Fees 

2007

Fees

—   

6,565

Expenses 

Fees 

(thousands of Ps.) 
—     
106     

2006

Expenses

—   

5,898

— 
85

______________ 
(1) 

Includes the fees for the issuance of agreed upon procedures reports and fees related to employee benefit plan audits. It also includes fees billed for 
assistance services rendered in relation to YPF’s readiness plan to comply with Sarbanes-Oxley’s Section 404 requirements in 2006.

(2) 

Includes the fees for the assistance and general consulting services provided in connection with an IRS dispute of one of YPF subsidiaries, which 
do not imply management functions, legal services or advocacy role.

The annual shareholders’ meeting of YPF appoints the external auditor of YPF, along with the Audit Committee’s non-binding opinion, which 

is submitted for consideration to the annual shareholders’ meeting. 

The Audit and Control Committee has a pre-approval policy regarding the contracting of Repsol YPF’s external auditor, or any affiliate of the 
external auditor, for professional services. The professional services covered by such policy include audit and non-audit services provided to Repsol 
YPF or any of its subsidiaries reflected in agreements dated on or after May 6, 2003. 

The pre-approval policy is as follows: 

1.           The Audit and Control Committee must pre-approve all audit and non-audit services to be provided to Repsol YPF or any of its 

subsidiaries by the external auditor (or any of its affiliates) of Repsol YPF. 

2.           The Chairman of the Audit and Control Committee has been delegated the authority to approve the hiring of Repsol YPF’s external 
auditor (or any of its affiliates) without first obtaining the approval of the Audit and Control Committee for any of the services which require pre-
approval as described in (1) above. 

Services approved by the Chairman of the Audit and Control Committee as set forth above must be ratified at the next plenary meeting of the 

Audit and Control Committee. 

All of the services described in the table above were approved by the Audit and Control Committee. 

Additionally, all services to be provided to YPF by its external auditors must be approved by the Board of Directors of YPF. 

ITEM 16D. Exemptions from the Listing Standards for Audit Committees 

Not applicable. 

ITEM 16E. Purchases of Equity Securities by the Issuer and Affiliated Purchasers 

In 2007, neither YPF nor any of its affiliates purchased any of YPF’s equity securities. 

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PART III 

ITEM 17. Financial Statements 

The registrant has responded to Item 18 in lieu of responding to this Item. 

ITEM 18. Financial Statements 

The following financial statements are filed as part of this Annual Report: 

Report of Independent Registered Public Accounting Firm
Consolidated Statements of Income of YPF S.A. for the Years Ended December 31, 2007, 2006 and 2005
Consolidated Balance Sheets of YPF S.A. as of December 31, 2007, 2006 and 2005
Consolidated Statements of Cash Flows of YPF S.A. for the Years Ended December 31, 2007, 2006 and 2005 
Consolidated Statements of Change in Shareholders’ equity of YPF S.A. for the Years Ended December 31, 2007, 2006 and 2005
Notes to the Consolidated Financial Statements of YPF S.A. for the Years Ended December 31, 2007, 2006 and 2005 

F-2
F-3
F-4
F-5
F-6
F-7

ITEM 19. Exhibits 

1.1  By-laws (Estatutos) of YPF S.A. as amended (Spanish Version)
1.2  By-laws (Estatutos) of YPF S.A. as amended (English Version)
11.1  Code of Ethics* 
12.1  Section 302 Certification by the Chief Executive Officer
12.2  Section 302 Certification by the Chief Financial Officer
13.1  Section 906 Certification by the Chief Executive Officer
13.2  Section 906 Certification by the Chief Financial Officer
23.1 Consent of Independent Registered Public Accounting Firm
23.2 Consent of Independent Registered Public Accounting Firm

___________________ 

*     Incorporated by reference to YPF’s 2004 Annual Report on Form 20-F filed on June 30, 2005. 

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The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the 

undersigned to sign this annual report on its behalf. 

SIGNATURES 

YPF SOCIEDAD ANÓNIMA  

By:  /s/ Walter Cristian Forwood 

Name:  Walter Cristian Forwood 
Title:   Chief Financial Officer 

Dated: April 14, 2008 

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YPF SOCIEDAD ANONIMA AND CONTROLLED AND JOINTLY CONTROLLED COMPANIES 

INDEX 

Reports of independent registered public accounting firm 

Consolidated statements of income for the years ended December 31, 2007, 2006 and 2005

Consolidated balance sheets as of December 31, 2007, 2006 and 2005

Consolidated statements of cash flows for the years ended December 31, 2007, 2006 and 2005

Consolidated statements of changes in shareholders' equity for the years ended December 31, 2007, 2006 and 2005 

Notes to consolidated financial statements for the years ended December 31, 2007, 2006 and 2005

Supplemental information on oil and gas producing activities (unaudited)

F-1

Page

F-2

F-4

F-5

F-6

F-7

F-8

F-57

 
 
 
 
  
  
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
Report of Independent Registered Public Accounting Firm 

To the Board of Directors and Shareholders of YPF SOCIEDAD ANONIMA: 

We have audited the accompanying consolidated balance sheets of YPF SOCIEDAD ANONIMA (an Argentine Corporation) and its controlled and 
jointly controlled companies (the “Company”) as of December 31, 2007, 2006 and 2005, and the related consolidated statements of income, cash flows 
and changes in shareholders' equity for each of the three years in the period ended December 31, 2007. These consolidated financial statements are the 
responsibility of the Company’s Management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. 

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require 
that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit 
includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the 
accounting principles used and significant estimates made by Management, as well as evaluating the overall financial statements presentation. We 
believe that our audits provide a reasonable basis for our opinion. 

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of YPF SOCIEDAD 
ANONIMA and its controlled and jointly controlled companies as of December 31, 2007, 2006, and 2005, and the results of their operations and their 
cash flows for each of the three years in the period ended December 31, 2007, in conformity with generally accepted accounting principles applicable to 
consolidated financial statements in Argentina. 

Accounting principles generally accepted in Argentina vary in certain significant respects from accounting principles generally accepted in the United 
States of America (“U.S. GAAP”). Information relating to the nature and effect of such differences is presented in Notes 13, 14 and 15 to the 
consolidated financial statements. 

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal 
control over financial reporting as of December 31, 2007, based on the criteria established in Internal Control - Integrated Framework issued by the 
Committee of Sponsoring Organizations of the Treadway Commission and our report dated April 10, 2008 expressed an unqualified opinion on the 
Company’s internal control over financial reporting. 

Buenos Aires City, Argentina 
April 10, 2008 

Deloitte & Co. S.R.L. 

Ricardo C. Ruiz 
Partner 

F-2

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
Report of Independent Registered Public Accounting Firm 

To the Board of Directors and Shareholders of YPF SOCIEDAD ANONIMA: 

We have audited the internal control over financial reporting of YPF SOCIEDAD ANONIMA (an Argentine Corporation) and its controlled and jointly 
controlled companies (the “Company”) as of December 31, 2007, based on the criteria established in Internal Control - Integrated Framework issued by 
the Committee of Sponsoring Organizations of the Treadway Commission.  The Company's management is responsible for maintaining effective 
internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the 
accompanying Management’s Report on Internal Control over Financial Reporting (Item 15). Our responsibility is to express an opinion on the 
Company's internal control over financial reporting based on our audit. 

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States).  Those standards require 
that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all 
material respects.  Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness 
exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures 
as we considered necessary in the circumstances.  We believe that our audit provides a reasonable basis for our opinion. 

A company's internal control over financial reporting is a process designed by, or under the supervision of, the company's principal executive and 
principal financial officers, or persons performing similar functions, and effected by the company's board of directors, management, and other personnel 
to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in 
accordance with generally accepted accounting principles.  A company's internal control over financial reporting includes those policies and procedures 
that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the 
company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with 
generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of 
management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, 
use, or disposition of the company's assets that could have a material effect on the financial statements. 

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of 
controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis.  Also, projections of any evaluation of the 
effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of 
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. 

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2007, based on 
the criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. 

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial 
statements of YPF SOCIEDAD ANONIMA and its controlled and jointly controlled companies as of and for the year ended December 31, 2007 and our 
report dated April 10, 2008 expressed an unqualified opinion on those consolidated financial statements and included an explanatory paragraph stating 
that the accounting principles generally accepted in Argentina vary in certain significant respects from accounting principles generally accepted in the 
United States of America (“U.S. GAAP”) and that the information related to the nature and effect of such differences is presented in Notes 13, 14, and 
15 to the consolidated financial statements of the Company. 

Buenos Aires City, Argentina 
April 10, 2008 

Deloitte & Co. S.R.L. 

Ricardo C. Ruiz 
Partner 

F-3

  
  
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
  
YPF SOCIEDAD ANONIMA AND CONTROLLED AND JOINTLY CONTROLLED COMPANIES 
CONSOLIDATED STATEMENTS OF INCOME 
FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts expressed in millions of Argentine pesos, except for per share amounts in Argentine pesos – Note 1) 

Net sales (Note 3.l) 
Cost of sales (Note 16.d) 
Gross profit 

Administrative expenses (Note 16.f) 
Selling expenses (Note 16.f) 
Exploration expenses (Note 16.f) 
Operating income 

Income on long-term investments 
Other expenses, net (Note 3.j) 
Financial income (expense), net and holding gains: 

Gains on assets 
Interests 
Exchange differences 
Holding gains on inventories 

Losses on liabilities 

Interests 
Exchange differences 

Income from sale of long-term investments 
Reversal (impairment) of other current assets (Note 2.c) 

Net income before income tax 

Income tax (Note 3.k) 

Net income 
Earnings per share (Note 1) 

2007

2006 

2005

29,104     
(19,000)    
10,104     

(805)    
(2,120)    
(522)    
6,657     

34     
(439)    

278     
142     
451     

(292)    
(61)    
5     
69     
6,844     
(2,758)    
4,086     
10.39     

25,635
(15,821)  
9,814

(674)
(1,797)

(460)  
6,883

183
(204)

338
5
394

(213)
(70)
11
(69)
7,258
(2,801)  
4,457   
11.33   

22,901
(11,258)
11,643

(552)
(1,650)
(280)
9,161

39
(545)

221
129
244

(459)
(33)
15
-
8,772
(3,410)
5,362 
13.63 

The accompanying notes are an integral part of these statements. 

F-4

  
 
  
  
  
  
   
  
     
 
  
      
 
  
      
      
      
      
 
 
 
YPF SOCIEDAD ANONIMA AND CONTROLLED AND JOINTLY CONTROLLED COMPANIES 
CONSOLIDATED BALANCE SHEETS 
AS OF DECEMBER 31, 2007, 2006 AND 2005 
(Amounts expressed in millions of Argentine pesos – Note 1) 

Current Assets 
Cash 
Investments (Note 3.a) 
Trade receivables (Note 3.b) 
Other receivables (Note 3.c) 
Inventories (Note 3.d) 
Other assets (Note 2.c) 
Total current assets 

Noncurrent Assets 
Trade receivables (Note 3.b) 
Other receivables (Note 3.c) 
Investments (Note 3.a) 
Fixed assets (Note 3.e) 
Intangible assets 

Total noncurrent assets 
Total assets 

Current Liabilities 
Accounts payable (Note 3.f) 
Loans (Note 3.g) 
Salaries and social security 
Taxes payable 
Net advances from crude oil purchasers (Note 3.h) 
Reserves (Note 16.c) 

Total current liabilities 

Noncurrent Liabilities 
Accounts payable (Note 3.f) 
Loans (Note 3.g) 
Salaries and social security (Note 3.i) 
Taxes payable 
Net advances from crude oil purchasers (Note 3.h) 
Reserves (Note 16.c) 

Total noncurrent liabilities 
Total liabilities 

Shareholders’ Equity (per corresponding statements) 

Total liabilities and shareholders’ equity 

2007

2006 

2005

196     
655     
3,235     
4,361     
2,573     
-     
11,020     

32     
809     
799     
25,434     
8     
27,082     
38,102     

4,339     
471     
213     
1,441     
9     
466     
6,939     

2,542     
523     
164     
21     
-     
1,853     
5,103     
12,042     

26,060     
38,102     

118
971
2,242
5,033
1,697
1,128   
11,189

44
852
788
22,513

8   
24,205   
35,394   

3,495
915
207
1,298
96
273   
6,284   

2,448
510
202
20
7
1,578   
4,765
11,049

24,345
35,394   

122
408
2,212
4,433
1,315
- 
8,490

53
1,223
495
21,958
5 
23,734 
32,224 

2,932
346
153
1,831
95
230 
5,587 

1,915
1,107
241
17
101
1,007 
4,388
9,975

22,249
32,224 

The accompanying notes are an integral part of these statements. 

F-5

  
  
  
  
  
  
   
     
 
  
      
      
 
 
 
  
      
      
 
 
  
      
      
 
  
      
 
YPF SOCIEDAD ANONIMA AND CONTROLLED AND JOINTLY CONTROLLED COMPANIES 
CONSOLIDATED STATEMENTS OF CASH FLOWS 
FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts expressed in millions of Argentine pesos – Note 1) 

Cash Flows from Operating Activities 
Net income 
Adjustments to reconcile net income to net cash flows provided by operating activities:

Income on long-term investments 
Dividends from long-term investments 
(Reversal) impairment of other current assets 
Income from sale of long-term investments 
Depreciation of fixed assets 
Consumption of materials and fixed assets retired, net of allowances
Increase in allowances for fixed assets 
Income tax 
Income tax payments 
Increase in reserves 
Changes in assets and liabilities: 
Trade receivables 
Other receivables 
Inventories 
Accounts payable 
Salaries and social security 
Taxes payable 
Net advances from crude oil purchasers 
Decrease in reserves 
Interests, exchange differences and others 

Net cash flows provided by operating activities 

Cash Flows from Investing Activities 
Acquisitions of fixed assets 
Capital distributions from long-term investments 
Acquisition of long-term investments 
Proceeds from sale of long-term investments 
Investments (non cash and equivalents) 

Net cash flows used in investing activities 

Cash Flows from Financing Activities 
Payment of loans 
Proceeds from loans 
Dividends paid 

Net cash flows used in financing activities 

(Decrease) increase in Cash and Equivalents 

Cash and equivalents at the beginning of year 
Cash and equivalents at the end of year 
(Decrease) increase in Cash and Equivalents 

For supplemental information on cash and equivalents, see Note 3.a. 

2007

2006 

2005

4,086 

(34)    
54 
(69)    
(5)    

4,139 
247 
116 
2,758 
(2,281)    
1,005 

(981)    
849 
(876)    
670 
(25)    
(340)    
(93)    
(537)    
73 
8,756(1)   

(6,163)    
- 
(16)    
6 
(14)    
(6,187)    

(1,860)    
1,411 
(2,360)    
(2,809)    
(240)    

1,087 
847 
(240)    

4,457

(183)
43
69
(11)
3,718
272
192
2,801
(2,855)
882

(21)
(255)
(382)
(99)
189
(425)
(90)
(268)
(15)
8,019(1) 

(5,002)
-
-
32
(139)  
(5,109)  

(666)
688
(2,360)  
(2,338)  
572

515
1,087 
572

5,362

(39)
16
-
(15)
2,707
276
74
3,410
(3,242)
326

(144)
(312)
(181)
1,003
(14)
(372)
(705)
(117)
218
8,251(1)

(3,722)
8
-
454
(2)
(3,262)

(736)
253
(4,878)
(5,361)
(372)

887
515 
(372)

(1)  Includes (114), (103) and (262) corresponding to interest cash payments for the years ended December 31, 2007, 2006 and 2005, respectively. 

The accompanying notes are an integral part of these statements. 

F-6

  
  
  
  
  
  
  
  
 
 
 
   
   
  
   
   
   
   
   
   
   
  
   
   
   
   
 
  
  
   
  
   
   
   
 
 
  
  
   
  
   
   
 
 
  
  
   
   
 
   
 
YPF SOCIEDAD ANONIMA AND CONTROLLED AND JOINTLY CONTROLLED COMPANIES 
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY 
FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts expressed in millions of Argentine pesos – Note 1, except for per share amount in pesos) 

Shareholder’s contributions

Adjustment 
to 
contributions   

Issuance 
premiums

Subscribed 
capital    

Total

Legal 
reserve

Deferred 
earnings

Reserve 
for future 
dividends    

Unappropriated 
retained 
earnings

Total 
shareholders’
equity

3,933    

7,281     

640

11,854

1,286

(119)

-     

8,748

21,769

Balance as of December 31, 
2004 
As decided by the Ordinary  and 
Extraordinary Shareholders' 
meeting of April 19, 2005: 
− Cash  dividends  (Ps.  8  per 

share) 

− Appropriation to Legal reserve  
− Appropriation  to  Reserve  for 

future dividends 

As decided by the Board of 
Directors' meeting of November 
10, 2005: 
− Cash  dividends  (Ps.  4.4  per 

share) 
Net decrease in deferred earnings 
(Note 2.k) 
Net income 
Balance as of December 31, 
2005 
As decided by the Ordinary 
Shareholders' meeting of April 
28, 2006: 
− Cash  dividends  (Ps.  6  per 

share) 

− Appropriation to Legal reserve  
− Appropriation  to  Reserve  for 

future dividends 

Net decrease in deferred earnings 
(Note 2.k) 
Net income 
Balance as of December 31, 
2006 
As decided by the Board of 
Directors’ meeting of March 6, 
2007: 
− Cash  dividends  (Ps.  6  per 

share) 

As decided by the Ordinary 
Shareholders’  meeting of April 
13, 2007: 
− Appropriation to Legal reserve  
− Appropriation  to  Reserve  for 

future dividends 

Net decrease in deferred earnings 
(Note 2.k) 
Net income 
Balance as of December 31, 
2007 

-    

-    

-    

-    

-    
-    

-     

-     

-     

-     

-     
-     

-

-

-

-

-

-

-

-

-
-   

-
-   

-

244

-

-

-
-   

-

-

-

-

(4)
-   

3,933    

7,281     

640

11,854

1,530

(123)

-    

-    

-    

-    
-    

-     

-     

-     

-     
-     

-

-

-

-
-

-

-

-

-
-

-

267

-

-
-

-

-

-

(1)
-

-     

-     

(3,147)

(244)

1,731     

(1,731)

(1,731)    

-     
-     

-     

-     

-     

-     
-     

-

-

5,362   

(2,360)

(267)

-
4,457

8,108

2,710     

(2,710)

(3,147)

-

-

(1,731)

(4)
5,362 

(2,360)

-

-

(1)
4,457

24,345

8,988

22,249

3,933    

7,281     

640

11,854

1,797

(124)

2,710     

-    

-     

-    

-    

-    
-    

-     

-     

-     
-     

-

-

-

-
-

-

-

-

-
-

-

223

-

-
-

-

-

-

(2,360)    

-

(2,360)

-     

(223)

4,234     

(4,234)

-

-

(11)
-

-     
-     

-
4,086

(11)
4,086

3,933    

7,281     

640   

11,854   

2,020   

(135)  

4,584     

7,737   

26,060 

The accompanying notes are an integral part of these statements. 

F-7

  
  
 
  
  
  
 
  
   
     
     
     
     
 
  
 
 
     
      
      
 
 
 
     
      
      
 
 
 
 
 
     
      
      
 
 
 
 
 
 
     
      
      
 
 
     
      
      
 
 
 
 
YPF SOCIEDAD ANONIMA AND CONTROLLED AND JOINTLY CONTROLLED COMPANIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 AND 2005 
(Amounts expressed in millions of Argentine pesos, except where otherwise indicated – Note 1) 

1.    SIGNIFICANT ACCOUNTING POLICIES 

The financial statements of YPF Sociedad Anónima (“YPF”) and its controlled and jointly controlled companies (the “Company”) have been prepared in 
accordance with generally accepted accounting principles applicable to consolidated financial statements in Argentina (“Argentine GAAP”), and taking 
into consideration the regulations of the National Securities Commission (“CNV”). 

In  accordance  with  generally  accepted  accounting  principles  and  current  Argentine  legislation,  the  presentation  of  individual  financial  statements  is 
mandatory. Consolidated financial statements are to be included as supplementary information to the individual financial statements. For the purpose of 
this  filing,  individual  financial  statements  have  been  omitted  since  they  are  not  required  for  the  United  States  Securiries  and  Exchange  Comission 
(“SEC”) reporting purposes. 

Certain  disclosures  related  to  formal  legal  requirements  for  reporting  in  Argentina  have  been  omitted  for  purposes  of  these  consolidated  financial 
statements, since they are not required for SEC reporting purposes. 

Presentation of financial statements in constant Argentine pesos 

The financial statements reflect the effect of changes in the purchasing power of money by the application of the method for inflation adjustment into 
constant  Argentine  pesos  set  forth  in  Technical  Resolution  No. 6  of  the  Argentine  Federation  of  Professional  Councils  in  Economic  Sciences 
(“F.A.C.P.C.E”) and taking into consideration General Resolution No. 441 of the CNV, which established the discontinuation of the inflation adjustment 
of financial statements into constant Argentine pesos as from March 1, 2003. 

Basis of consolidation 

Following the methodology established by Technical Resolution No. 21 of the F.A.C.P.C.E., the Company has consolidated its balance sheets and the 
related statements of income and cash flows for the years ended December 31, 2007, 2006 and 2005, as follows: 

•  Investments  and  income  (loss)  related  to  controlled  companies  in  which  YPF  has  the  number  of  votes  necessary  to  control  corporate
decisions are substituted for such companies’ assets, liabilities, net revenues, cost and expenses, which are aggregated to YPF’s balances 
after the elimination of intercompany profits, transactions, balances and other consolidation adjustments. 

•  Investments and income (loss) related to companies in which YPF holds joint control are consolidated line by line on the basis of the YPF’s 
proportionate share in their assets, liabilities, net revenues, cost and expenses, considering intercompany profits, transactions, balances and
other  consolidation  adjustments.  The  effect  of  this  proportional  consolidation  for  the  year  ended  December  31,  2007  and  comparative
information, is disclosed in Note 13.b. 

Foreign  subsidiaries  in  which  YPF  participates  have  been  defined  as  non-integrated  companies  as  they  collect  cash  and  other  monetary  items,  incur 
expenses and generate income. Corresponding assets and liabilities have been translated into Argentine pesos at the exchange rate prevailing as of the 
end of each year. Income statements have been translated using the relevant exchange rate at the date of each transaction. Exchange differences arising 
from the translation process have been included as a component of shareholders’ equity in the account “Deferred earnings”, which will be maintained 
until the sale or complete or partial reimbursement of equity of the related investment occur. 

F-8

  
  
 
  
  
  
  
  
  
  
  
  
  
  
  
The  consolidated  financial  statements  are  based  upon  the  last  available  financial  statements  of  those  companies  in  which  YPF  holds  control  or  joint 
control,  taking  into  consideration,  if  applicable,  significant  subsequent  events  and  transactions,  available  management  information  and  transactions 
between YPF and the related company, which could have produced changes on the latter’s shareholders’ equity. 

The  valuation  methods  employed  by  the  controlled  and  jointly  controlled  companies  are  consistent  with  those  followed  by  YPF.  If  necessary, 
adjustments  have  been  made  to  conform  the  accounting  principles  used  by  these  companies  to  those  of  YPF.  The  principal  adjustments  relate  to  the 
application of general accepted accounting principles in Argentina to foreign related companies’ financial statements. 

Cash and equivalents 

In the statements of cash flows, the Company considers cash and all highly liquid investments with an original maturity of less than three months to be 
cash and equivalents. 

Revenue recognition criteria 

Revenue is recognized on sales of crude oil, refined products and natural gas, in each case, when title and risks are transferred to the customer. 

Joint ventures and other agreements 

The  Company’s  interests  in  oil  and  gas  related  joint  ventures  and  other  agreements  involved  in  oil  and  gas  exploration  and  production,  have  been 
consolidated line by line on the basis of the Company’s proportional share in their assets, liabilities, revenues, costs and expenses (Note 6). 

Production concessions and exploration permits 

According to Argentine Law No. 24,145 issued in November 1992, YPF’s areas were converted into production concessions and exploration permits 
under Law No. 17,319, which has been currently amended by Law No. 26,197. Pursuant to these laws, the hydrocarbon reservoirs located in Argentine 
onshore territories and offshore continental shelf belong to national or provincial governments, depending on the location. Exploration permits may have 
a term of up to 17 years and production concessions have a term of 25 years, which may be extended for an additional ten-year term. 

Fair value of financial instruments and concentration of credit risk 

The  carrying  value  of  cash,  current  investments  and  trade  receivables  approximates  its  fair  value  due  to  the  short  maturity  of  these  instruments. 
Furthermore, the fair value of loans receivable, which has been estimated based on current interest rates offered to the Company at the end of each year, 
for investments with the same remaining maturity, approximates its carrying value. As of December 31, 2007, 2006 and 2005 the fair value of loans 
payable estimated based on market prices or current interest rates at the end of each year amounted to 1,049, 1,494 and 1,546, respectively. 

Financial  instruments  that  potentially  expose  the  Company  to  concentration  of  credit  risk  consist  primarily  of  cash,  current  investments,  accounts 
receivable and other receivables. The Company invests cash excess primarily in high liquid investments in financial institutions, both in Argentina and 
abroad, with strong credit rating and providing credit to foreign related parties. In the normal course of business, the Company provides credit based on 
ongoing  credit  evaluations  to  its  customers  and  certain  related  parties.  Additionally,  the  Company  accounts  for  credit  losses  based  on  specific 
information of its clients. Credit risk on trade receivables is limited, as a result of the Company's large customer base. 

Since counterparties to the Company's derivative transactions are major financial institutions with strong credit rating, exposure to credit losses in the 
event of nonperformance by such counterparties is minimal. 

Use of estimates 

The  preparation  of  financial  statements  in  conformity  with  generally  accepted  accounting  principles  requires  Management  to  make  estimates  and 
assumptions  that  affect  reported  assets,  liabilities,  revenues  and  expenses  and  disclosure  of  contingencies.  Future  results  could  differ  from  the 
estimations made by Management. 

F-9

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Earnings per share 

Earnings per share have been calculated based on the 393,312,793 shares outstanding during the years ended as of December 31, 2007, 2006 and 2005. 

2.    VALUATION CRITERIA 

The principal valuation criteria used in the preparation of the financial statements are as follows: 

a) 

 Cash, current investments, trade and other receivables and payables:

−  Amounts in Argentine pesos have been stated at face value, which includes accrued interest through the end of each year, if applicable. Mutual
funds have been valued at fair value as of the end of each year. When required by generally accepted accounting principles, discounted value
does not differ significantly from their face value as of the end of each year.

−  Amounts  in  foreign  currency  have  been  valued  at  face  value  at  the  relevant  exchange  rates  in  effect  as  of  the  end  of  each  year,  including
accrued interest, if applicable. Exchange differences have been credited (charged) to current income. Mutual funds have been valued at fair
value at the relevant exchange rate in effect as of the end of each year. Investments in government securities have been valued at their fair
value as of the end of each year. Additional information on assets and liabilities denominated in foreign currency is disclosed in Note 16.e.

If applicable, allowances have been made to reduce receivables to their estimated realizable value. 

b) 

Inventories: 

−  Refined products, products in process, crude oil and natural gas have been valued at replacement cost as of the end of each year.

−  Raw materials and packaging materials have been valued at cost, which does not differ significantly from its replacement cost as of the end of

each year. 

Valuation of inventories does not exceed their estimated realizable value. 

c) 

 Other current assets: 

Includes oil and gas exploration and producing fields held for sale as of December 31, 2006, which had been valued at the lower of their carrying 
amount and fair value less cost to sell. In April, 2007, the Company decided to suspend the selling process of those assets, transferred their book 
value as fixed assets held for use and reversed the impairment charge during the year ended December 31, 2006. 

d)   Noncurrent investments: 

These  include  the  Company’s  investments  in  companies  under  significant  influence  and  holdings  in  other  companies.  These  investments  are 
detailed  in  Note  16.b  and  have  been  valued  using  the  equity  method,  except  for  holdings  in  other  companies,  which  have  been  valued  at  its 
acquisition cost remeasured as detailed in Note 1. 

Investments  in  Gasoducto  del  Pacífico  (Argentina) S.A.,  Gasoducto  del  Pacífico  (Cayman) Ltd.,  Gasoducto  Oriental  S.A.  and  Oleoducto 
Trasandino (Chile) S.A., where less than 20% direct or indirect interest is held, are accounted by the equity method since the Company exercises 
significant influence over these companies in making operation and financial decisions based on its representation on the Boards of Directors 
and/or the significant transactions between YPF and such companies. 

F-10

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
If  applicable,  allowances  have  been  made  to  reduce  investments  to  their  estimated  recoverable  value.  The  main  factors  for  the  recognized 
impairment were the devaluation of the Argentine peso, certain events of debt default and the de-dollarization and freezing of utility rates. 

Holdings in preferred shares have been valued as defined in the respective bylaws. 

If necessary, adjustments have been made to conform the accounting principles used by companies under significant influence to those of the 
Company. 

The investments in companies under significant influence have been valued based upon the last available financial statements of these companies 
as  of  the  end  of  each  year,  taking  into  consideration,  if  applicable,  significant  subsequent  events  and  transactions,  available  management 
information and transactions between the Company and the related company which have produced changes to the latter’s shareholders’ equity. 

As from the effective date of Law No. 25,063, dividends, either in cash or in kind, that YPF receives from investments and which are in excess of 
the accumulated taxable income that the companies carry upon distribution shall be subject to a 35% income tax withholding as a sole and final 
payment. YPF has not recorded any charge for this tax since it has estimated that dividends from earnings of investees accounted under equity 
method will be remitted in a tax free liquidation. 

e) 

 Fixed assets: 

Fixed  assets have been  valued at  acquisition  cost  remeasured as detailed  in  Note 1,  less related  accumulated  depreciation. Depreciation rates, 
representative  of  the  useful  life  assigned,  applicable  to  each  class  of  asset,  are  disclosed  in  Note  16.a.  For  those  assets  whose  construction 
requires an extended period of time, financial costs corresponding to third parties’ financing have been capitalized during the assets’ construction 
period. 

Oil and gas producing activities 

−  The Company follows the  “successful  effort” method of accounting for  its oil  and  gas exploration and production operations.  Accordingly,
exploratory  costs,  excluding  the  costs  of  exploratory  wells,  have  been  charged  to  expense  as  incurred.  Costs  of  drilling  exploratory  wells,
including stratigraphic test wells, have been capitalized pending determination as to whether the wells have found proved reserves that justify
commercial development. If such reserves were not found, the mentioned costs are charged to expense. Occasionally, an exploratory well may
be determined to have found oil and gas reserves, but classification of those reserves as proved cannot be made when drilling is completed. In
those cases, the cost of drilling the exploratory well shall continue to be capitalized if the well has found a sufficient quantity of reserves to
justify  its  completion  as  a  producing  well  and  the  enterprise  is  making  sufficient  progress  assessing  the  reserves  and  the  economic  and
operating viability of the project. If any of the mentioned conditions is not met, cost of drilling exploratory wells is charged to expense. As of
December 31, 2007, the Company has only one exploratory well capitalized for more than one year after the completion of the drilling. As of
the date of the issuance of these financial statements, the Company has contracted external advisors in  order to assess the feasibility of the
project and the economic viability of the well. The capitalized cost of the project amounts to approximately 43. The Company expects to have
the  result  of  the  above  mentioned  assessment  in  the  first  half  of  2008.  As  of  December  31,  2006  and  2005,  the  Company  had  34  and  65,
respectively, of exploratory drilling costs that had been capitalized for a period greater than one year.

−  Intangible  drilling  costs  applicable  to  productive  wells  and  to  developmental  dry  holes,  as  well  as  tangible  equipment  costs  related  to  the

development of oil and gas reserves, have been capitalized.

−  The  capitalized  costs  related  to producing  activities  have  been  depreciated  by  field  on  the  unit-of-production  basis  by  applying  the  ratio  of 

produced oil and gas to estimate recoverable proved and developed oil and gas reserves.

−  The capitalized costs related to acquisitions of properties with proved reserves have been depreciated by field on the unit-of-production basis 

by applying the ratio of produced oil and gas to proved oil and gas reserves.

F-11

  
  
  
  
  
  
  
  
  
  
  
  
  
  
−  Revisions of crude oil and natural gas proved reserves are considered prospectively in the calculation of depreciation. Revisions in estimates of
reserves are performed at least once a year. Additionally, estimates of reserves are audited by independent petroleum engineers on a three year
rotation plan. 

−  Costs related to hydrocarbon wells abandonment obligations are capitalized along with the related assets, and are depreciated using the unit-of-
production  method.  As  compensation,  a  liability  is  recognized  for  this  concept  at  the  estimated  value  of  the  discounted  payable  amounts.
Revisions of the payable amounts are performed at the end of each fiscal year upon consideration of the current costs incurred in abandonment
obligations on a field-by-field basis or other external available information if abandonment obligations were not performed. Due to the number
of wells in operation and/or not abandoned and likewise the complexity with respect to different geographic areas where the wells are located,
the current costs incurred in plugging are used for estimating the plugging cost of the wells pending abandonment. Current costs incurred are
the best source of information at the end of each fiscal year in order to make the best estimate of asset retirement obligations.

−  Properties on foreign unproved reserves have been valued at cost and translated into pesos as detailed in Note 1. Capitalized costs related to
unproved properties are reviewed periodically by Management to ensure the carrying value does not exceed their estimated recoverable value.

Other fixed assets 

−  The Company's other fixed assets are depreciated using the straight-line method, with depreciation rates based on the estimated useful life of

each class of property. 

Fixed assets’ maintenance and repairs have been charged to expense as incurred. 

Major inspections of refineries, necessary to continue to operate the related assets, are capitalized and depreciated using the straight-line method 
over the period of operation to next major inspection. 

Renewals  and  betterments  that  materially  extend the useful  life and/or increase the  productive  capacity of properties are  capitalized.  As fixed 
assets are retired, the related cost and accumulated depreciation are eliminated from the balance sheet. 

The Company capitalizes the costs incurred in limiting, neutralizing or preventing environmental pollution only in those cases in which at least 
one of the following conditions is met: (a) the expenditure improves the safety or efficiency of an operating plant (or other productive asset); (b) 
the expenditure prevents or limits environmental pollution at operating facilities; or (c) the expenditures are incurred to prepare assets for sale 
and do not raise the assets' carrying value above their estimated recoverable value. 

The carrying value of the fixed asset of each business segment, as defined in Note 8, does not exceed their estimated recoverable value. 

F-12

  
  
  
  
  
  
  
  
  
  
  
  
f) 

 Salaries and Social Security – Pensions Plans and other Postretirement and Postemployment Benefits 

YPF Holdings Inc.,  which  has  operations  in  the  United  States  of  America,  has  a  number  of  trustee  defined-benefit  pension  plans  and 
postretirement and postemployment benefits. 

The funding policy related to pension plans is to contribute amounts to the plans sufficient to meet the minimum funding requirements under 
governmental regulations, plus such additional amounts as Management may determine to be appropriate. The benefits related to the plans were 
valued at net present value and accrued based on the years of active service of employees. The net liability for defined-benefits plans is disclosed 
as  non-current  liabilities  in  the  “Salaries  and  social  security”  account  and  is  the  amount  resulting  from  the  sum  of:  the  present  value  of  the 
obligations,  net  of  the  fair  value  of  the  plan  assets  and  net  of  the  unrecognized  actuarial  losses  generated  since  December  31,  2003.  These 
unrecognized actuarial losses and gains are recognized in the statement of income during the expected average remaining working lives of the 
employees participating in the plans and the life expectancy of retired employees. The Company updates the actuarial assumptions at the end of 
each year. 

YPF Holdings Inc. also has a noncontributory supplemental retirement plan for executive officers and other selected key employees. 

YPF  Holding  Inc.  provides certain health  care  and life  insurance benefits  for  eligible retired  employees,  and  also  certain  insurance, and other 
postemployment benefits for eligible individuals in the case employment is terminated by YPF Holdings Inc. before their normal retirement. YPF 
Holdings Inc. accrues the estimated cost of retiree benefit payments, other than pensions, during employees’ active service periods. Employees 
become  eligible  for  these  benefits  if  they  meet  minimum  age  and  years  of  service  requirements.  YPF  Holdings  Inc.  accounts  for  benefits 
provided when the minimum service period is met, payment of the benefit is probable and the amount of the benefit can be reasonably estimated. 

Other postretirement and postemployment benefits are recorded as claims are incurred. 

g) 

 Taxes, withholdings and royalties: 

Income tax and tax on minimum presumed income 

The  Company  recognizes  the  income  tax  applying  the  liability  method,  which  considers  the  effect  of  the  temporary  differences  between  the 
financial and tax basis of assets and liabilities and the tax loss carryforwards and other tax credits, which may be used to offset future taxable 
income, at the current statutory rate of 35%. 

In deferred income tax computations, the difference between the book value of fixed assets remeasured into constant Argentine pesos and their 
corresponding historical cost used for tax purposes is a temporary difference to be considered in deferred income tax computations. However, 
generally accepted accounting principles in Argentina give the option to only disclose the mentioned effect in a note to the financial statements. 
The Company adopted this latter criterion (Note 3.k). 

Additionally, the Company calculates tax on minimum presumed income applying the current 1% tax rate to taxable assets as of the end of each 
year. This tax complements income tax. The Company's tax liability will coincide with the higher between the determination of tax on minimum 
presumed income and the Company's tax liability related to income tax, calculated applying the current 35% income tax rate to taxable income 
for  the  year.  However,  if  the  tax  on  minimum  presumed  income  exceeds  income  tax  during  one  tax  year,  such  excess  may  be  computed  as 
prepayment of any income tax excess over the tax on minimum presumed income that may be generated in the next ten years. 

For  the  years  ended  December  31,  2007,  2006  and  2005,  the  amounts  determined  as  current  income  tax  were  higher  than  tax  on  minimum 
presumed income and they were included in the “Income tax” account of the income statements of each year. 

F-13

  
  
  
  
  
  
  
  
  
  
  
  
  
  
Royalties and withholding systems for hydrocarbon exports 

A  12%  royalty  is  payable  on  the  estimated  value  at  the  wellhead  of  crude  oil  production  and  the  natural  gas  volumes  commercialized.  The 
estimated value is calculated based upon the approximate sale price of the crude oil and gas produced, less the costs of transportation and storage. 
Notwithstanding, in January 2008, the Secretariat of Energy issued the Disposition No.1, providing certain guidelines to calculate the royalties of 
crude oil. The Company is currently analyzing the Disposition No.1, therefore it is not possible to assert whether such regulation is in conflict 
with the provisions of Law No.17,319 as amended. 

Royalty expense is accounted for as a production cost. 

Law No. 25,561 on Public Emergency and Exchange System Reform, issued in January 2002, established duty taxes for hydrocarbon exports for 
a  five  year-period.  In  January  2007,  Law  No.  26,217  extended  this  export  withholding  system  for  an  additional  five-year  period  and  also 
established specifically that this regime is also applicable to exports from Tierra del Fuego province, which were previously exempted from such 
regime. As of December 31, 2006, outstanding withholding rates were 20% for liquefied petroleum gas, 5% for gasoline, diesel and other refined 
products and between 25% and 45% for crude oil based on West Texas Intermediate Price (“WTI”). On July 25, 2006, Resolution No. 534/2006 
of  the  Ministry  of  Economy  and  Production  entered  in  force,  raising  the  natural  gas  withholding  rate  from  20%  to  45%  and  establishing  the 
natural gas import price from Bolivia as the basis for its determination. In March 2008, Resolution No. 127/2008 of the Ministry of Economy and 
Production amended Resolution No. 534/2006, establishing the natural gas export withholding rate as 100% of the highest price from any natural 
gas  import  contract  to  Argentina.  YPF  is  negotiating  with  its  export  clients  the  effect  of  the  above  mentioned  increase  and  the  transfer  of  a 
significant  part  of  these  incremental  costs  to  them.  Additionally,  on  November  16,  2007,  the  Ministry  of  Economy  and  Production  published 
Resolution  No. 394/2007,  modifying  the  withholding  regime  on  exports  of  crude  oil  and  other  crude  oil  derivative  products.  The new  regime 
provides  the  reference  prices  and  floor  prices  which  in  conjunction  with  the  West  Texas  Intermediate  price  (“WTI”),  determine  the  export 
withholding rate for each product. In case of crude oil, when the WTI exceeds the reference price, which is fixed at US$ 60.9 per barrel, the 
producer  is  allowed  to  collect  a  floor  price  of  US$  42  per  barrel,  depending  on  the  quality  of  the  crude  oil  sold,  with  the  remainder  being 
withheld by the Argentine Government. If the WTI is under the reference price but over US$ 45 per barrel, a 45% withholding rate will apply. If 
such price is under US$ 45 per barrel, the Government will have to determine the export rate within a term of 90 business days. The withholding 
rate determined as indicated above for crude oil, also currently applies to diesel, gasoline products and other crude oil derivative products, and as 
from the issuance of Resolution No. 127/2008 in March 2008, to liquified petroleum gas. In addition, this calculation procedure also applies to 
other petroleum products and lubricants, considering different reference and floor prices as disclosed in Resolution No. 394/2007. 

Hydrocarbon export withholdings are charged to the “Net sales” account of the statement of income. 

h) 

 Allowances and reserves: 

−  Allowances: amounts have been provided in order to reduce the valuation of trade receivables, other receivables, noncurrent investments and

fixed assets based on analysis of doubtful accounts and on the estimated recoverable value of these assets. 

−  Reserves  for  losses:  amounts  have  been  provided  for  various  contingencies  which  are  probable  and  can  be  reasonably  estimated,  based  on
Management's  expectations  and  in  consultation  with  legal  counsels.  Reserves  for  losses  are  required  to  be  accounted  for  at  the  discounted
value as of the end of each year, however, as their face value does not differ significantly from discounted values, they are recorded at face
value. 

The activity in the allowances and reserves accounts is set forth in Note 16.c. 

F-14

  
  
  
  
  
  
  
  
  
  
  
i) 

 Environmental liabilities: 

Environmental liabilities are recorded when environmental assessments and/or remediation are probable and can be reasonably estimated. Such 
estimates are based on either detailed feasibility studies of remediation approach and cost for individual sites or on Company’s estimate of costs 
to  be  incurred  based  on  historical  experience  and  available  information  based  on  the  stage  of  assessment  and/or  remediation  of each  site.  As 
additional information becomes available regarding each site or as environmental standards change, the Company revises its estimate of costs to 
be incurred in environmental assessment and/or remediation matters. 

 Derivative instruments: 

j) 

Although the Company does not use derivative instruments to hedge the effects of fluctuations in market prices, as of December 31, 2007, YPF 
maintains a price swap agreement that hedges the fair value of crude oil future committed deliveries under the forward crude oil sale agreement 
mentioned  in  Note 10.c  (“hedged  item”).  Under  this  price  swap  agreement  YPF  will  receive  variable  selling  prices,  which  will  depend  upon 
market  prices  and  will  pay  fixed  prices.  As  of  December  31,  2007,  approximately  1  million  of  barrels  of  crude  oil  are  hedged  under  this 
agreement. 

This  fair  value  hedge  is  carried  at  fair  value  and  is  disclosed  in  the  “Net  advances  from  crude  oil  purchasers”  account  in  the  balance  sheet. 
Changes in fair value are recognized in earnings together with the offsetting loss or gain from changes in the fair value of the hedged item caused 
by the risk being hedged. As hedge relationship is effective, changes in the fair value of this derivative instrument and of the hedged item do not 
have effect on net income. 

k) 

 Shareholders’ equity accounts: 

These  accounts  have  been  stated  in  Argentine  pesos  as  detailed  in  Note 1.a,  except  for  “Subscribed  Capital”  account,  which  is  stated  at  its 
historical value. The adjustment required to remeasure this account in constant Argentine pesos is disclosed in the “Adjustment to Contributions” 
account. 

The account “Deferred earnings” includes the effect of the exchange differences generated by the foreign companies’ translation for the years 
ended December 31, 2007, 2006 and 2005. 

l) 

 Statements of income accounts: 

The amounts included in the income statement accounts have been recorded by applying the following criteria: 

-  Accounts which accumulate monetary transactions at their face value.

-  Cost of sales has been calculated by computing units sold in each month at the replacement cost of that month. 

-   Depreciation and amortization of nonmonetary assets, valued at acquisition cost, have been recorded based on the remeasured cost of such 

assets as detailed in Note 1. 

-   Holding gains (losses) on inventories valued at replacement cost have been included in the “Holding gains on inventories” account.

-  

Income (Loss) on long-term investments in which significant influence is held, has been calculated on the basis of the income (loss) of those 
companies and was included in the “Income on long-term investments” account.

F-15

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
3.    ANALYSIS OF THE MAIN ACCOUNTS OF THE CONSOLIDATED FINANCIAL STATEMENTS

Details regarding the significant accounts included in the accompanying consolidated financial statements are as follows: 

a)     Investments: 

Short-term investments and 
government securities 

Long-term investments (Note 16.b)     
Allowance for reduction in value of 
holdings in long-term investments 
(Note 16.c) 

2007

2006

Current 

  Noncurrent

Current

  Noncurrent

2005

Current 

  Noncurrent

655(1)
- 

- 
655 

168(2)
837

(206)
799 

971(1)
-

-
971 

156(2)    
843 

(211)    
788 

408(1)
-

-
408 

4
802

(311)
495 

(1)  Includes 651, 969 and 393 as of December 31, 2007, 2006 and 2005, respectively, with an original maturity of less than three months. 
(2)  Restricted cash as of December 31, 2007 and 2006 which represents bank deposits used to pay workers compensation claims and security deposits for letters of

credits used as security with governmental agencies. 

b)     Trade receivables: 

Accounts receivable 
Related parties (Note 7) 

Allowance for doubtful trade 
receivables (Note 16.c) 

c)     Other receivables 

Deferred income tax (Note 3.k) 
Tax credits and export rebates 
Trade 
Prepaid expenses 
Concessions charges 
Related parties (Note 7) 
Loans to clients 
Advances to suppliers 
From joint ventures and other 

agreements 

Advances under Decree No. 1,882/04    
Miscellaneous 

Allowance for other doubtful 
accounts (Note 16.c) 

Allowance for valuation of other 
receivables to their estimated 
realizable value (Note 16.c) 

Current 

2007
    Noncurrent

Current

2006
    Noncurrent

Current 

2005
    Noncurrent

3,142

533   

3,675

(440)  
3,235   

32

-   

32

-   
32   

2,280

391   

2,671

(429)  
2,242   

44     
-     
44     

-     
44     

2,240

352   

2,592

(380)  
2,212   

53
- 
53

- 
53 

2007

Current 

  Noncurrent

Current

2006
    Noncurrent     

Current 

2005
    Noncurrent

-
931
97
111
17
2,681(1)
14
132

62
-
438 
4,483

(122)

- 
4,361

517
15
-
60
79
-
90
-

-
-
98   
859

-

(50)  
809

-
692
71
130
17
3,883
12
65

46
-
254   

5,170

(137)

-   

5,033

510     
18     
-     
73     
88     
-     
69     
-     

-     
-     
146     
904     

-     

(52)    
852     

-
529
34
66
17
3,139
11
40

1
273
444   

4,554

(121)

-   

4,433

452
18
-
95
96
371
90
-

-
-
155 
1,277

-

(54)
1,223

(1)  Includes 76 which accrue fixed interest at an annual rates between 5.23% and 7.28% and 2,529 which accrue interest at LIBOR plus a maximum spread of 1.5%.

F-16

  
  
  
  
  
  
  
 
  
  
  
  
 
 
 
  
 
 
 
 
 
 
 
 
 
   
   
   
  
   
 
 
 
   
 
  
 
   
  
 
   
   
 
  
   
     
   
   
  
   
   
  
   
   
     
 
 
   
   
 
  
 
 
   
 
  
   
     
   
   
   
   
   
   
   
   
   
   
 
  
   
   
   
 
  
   
d)     Inventories: 

Refined products 
Crude oil and natural gas 
Products in process 
Raw materials, packaging materials and others 

e)     Fixed assets: 

Net book value of fixed assets (Note 16.a) 
Allowance for unproductive exploratory drilling (Note 16.c)
Allowance for obsolescence of materials and equipment (Note 16.c)

2007 

2006 

2005

1,612     
646     
46     
269     
2,573     

1,047
441
47
162   
1,697   

747
409
19
140 
1,315 

2007 

2006 

2004

25,481     
(3)    
(44)    
25,434     

22,562
(3)
(46)
22,513   

22,009
(3)
(48)
21,958 

f)     Accounts payable: 

Current

2007
    Noncurrent    

Current

2006
    Noncurrent     

Current

2005
    Noncurrent  

Trade 
Hydrocarbon wells abandonment obligations     
Related parties (Note 7) 
From joint ventures and other agreements 
Environmental liabilities 
Miscellaneous 

3,131
395
140
373
137
163   

4,339

21
2,316
-
-
166
39   

2,542

2,617
233
238
256
93
58   

3,495

27     
2,210     
-     
-     
164     
47     
2,448     

2,071
-
279
200
48
334   

2,932

30
1,419
-
-
200
266 
1,915

g)     Loans: 

Interest   
rates (1)   

  Principal   
  maturity      Current

2007

    Noncurrent     Current

2006
    Noncurrent     Current

2005

    Noncurrent  

Negotiable Obligations - 
YPF 
Other bank loans and 
other creditors 

9.13 –
10.00%   
1.25 –
14.00% 

2009 -
2028

2008 

(1)  Annual fixed interest rates as of December 31, 2007. 

14

457
471   

523

-
523   

559

356
915   

509     

1     
510     

27

319
346   

1,031

76
1,107 

The maturities of the Company’s noncurrent loans, as of December 31, 2007, are as follows: 

Noncurrent loans 

Details regarding the Negotiable Obligations of the Company are as follows: 

From 1
to 2 years 

318

Over 
5 years 

205 

M.T.N. 
Program    

US$1,000    
US$1,000    
US$1,000    

Issuance 

(in millions) 

Year    

Principal 
Value 

1997     US$300    
1998     US$100    
1999     US$225    

Fixed Interest 
Rates

Principal 
Maturity

2007

Book Value 
2006 

- 
10.00%  
  9.13%  

-
2028  
2009   

Current   Noncurrent  

Current    Noncurrent 

Current   Noncurrent

-
 4
10   
14

-
205
318
523

546   
   3   
 10   
559   

- 
199 
310 
509 

14
 3
10
27

 527
 197
 307
1,031   

F-17

Total

523

2005

 
  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
   
  
     
 
  
 
  
   
  
     
  
 
  
 
   
  
 
  
   
     
   
   
   
   
   
  
   
 
   
  
 
  
   
 
   
     
   
   
  
   
  
   
 
  
  
     
  
 
     
 
 
  
  
  
 
 
  
  
 
 
 
 
  
  
  
  
  
 
 
 
  
  
  
  
  
    
  
  
 
 
 
 
   
 
 
     
  
 
   
 
  
  
  
  
  
  
  
 
 
  
 
 
  
  
  
  
  
  
  
    
  
  
  
  
  
 
 
  
 
In  connection  with  the  issuance  of  the  Negotiable  Obligations,  YPF  has  agreed  for  itself  and  its  controlled  companies  to  certain  covenants, 
including among others, to pay all liabilities at their maturity and not to create other encumbrances that exceed 15% of total consolidated assets. If 
the Company does not comply with any covenant, the trustee or the holders of not less than 25% in aggregate principal amount of each outstanding 
Negotiable Obligations may declare the principal and accrued interest immediately due and payable. 

Financial  debt  contains  customary  covenants  for  contracts  of  this  nature,  including  negative  pledge,  material  adverse  change  and  cross-default 
clauses. Almost all of YPF's total outstanding debt is subject to cross-default provisions, which may be triggered if an event of default occurs with 
respect to the payment of principal or interest on indebtedness equal to or exceeding US$ 20 million. 

The  Shareholders’  Meeting  held  on  January  8,  2008,  approved  a  Notes  Program  for  an  amount  up  to  US$  1,000  million.  The  proceeds  of  any 
offerings under this program must be used exclusively to invest in fixed assets and working capital in Argentina. 

h)     Net advances from crude oil purchasers: 

Advances from crude oil purchasers 
Derivative instruments - Crude oil price swaps 

i)     Noncurrent salaries and social security: 

2007
Current

2006

2005

Current

Noncurrent     

Current

Noncurrent

238
(229)

9   

412
(316)

96   

152     
(145)    
7     

398
(303)

95   

527
(426)
101 

Defined – benefit obligations and other benefits 

2007 

2006 

2005

Net present value of obligations 
Fair value of assets 
Deferred actuarial losses 
Recognized net liabilities 

472     
(247)    
(61)    
164     

480
(226)
(52)
202   

501
(199)
(61)
241 

Changes in the fair value of the defined-benefit obligations

2007 

2006 

2005

Liabilities at the beginning of the year 
Translation differences 
Service cost 
Interest cost 
Actuarial losses 
Benefits paid and terminations 
Liabilities at the end of the year 

Changes in the fair value of the plan assets 

Fair value of assets at the beginning of the year 
Translation differences 
Expected return on assets 
Actuarials (losses) gains 
Employer and employees contributions 
Benefits paid and terminations 
Fair value of assets at the end of the year 

F-18

480     
15     
1     
28     
25     
(77)    
472     

501
5
3
28
6
(63)  
480

2007 

2006 

2005

226     
7     
17     
(1)    
60     
(62)    
247     

199
2
15
8
50
(48)  
226   

479
5
3
26
42
(54)
501

188
5
15
(6)
53
(56)
199 

  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
   
  
  
     
  
 
  
     
   
  
     
 
   
  
     
 
   
  
     
 
 
Amounts recognized in the Income Statements 

Service cost 
Interest cost 
Expected return on assets 
Actuarial losses recognized in the year 
Losses on terminations 
Total recognized as other expenses, net (Note 3.j) 

Actuarial assumptions used to determine benefit cost

Discount rate 
Expected return on assets 
Expected increase on salaries 

(1)  Increase on salaries is not expected as there are no more active employees.

2007 

Income (Expense)
2006 

2005

1     
28     
(17)    
1     
8     
21     

3
28
(15)
2
4   

22

3
26
(15)
1
1 
16

2007 

2006 

2005

6.5%   
7%   
N/A(1)   

6%
7%
5.5%

5.75%
8.50%
4.5 - 5.5%

The expected long-term rate of return on pension fund assets was determined based on input from our investment consultants and the projected long-
term returns of broad equity and bond indices. The Company anticipates that on the average, the investment managers for each of the plans will generate 
long-term rates of return of at least 7%. The long-term rate of return is based on an asset allocation assumption of about 70% equity securities and 30% 
fixed income securities. The Company regularly reviews its actual asset allocation and rebalances its investments when it is considered appropriate. The 
Company will continue to evaluate its long-term rate of return assumptions at least annually and will adjust them as necessary. 

The pension plan asset allocations as of December 31, 2007, 2006 and 2005, are as follows: 

Asset Category 

Equity securities 
Debt securities 
Other 

Target
2007

Percentage of Plan Assets
2006 

2007 

2005

70%
30%
-
100%

70%   
29%   
1%   
100%   

70%
28%
2%
100%

70%
30%
-
100%

During  March  2008,  YPF  Holdings,  Inc.  purchased  a  group  annuity  contract  from  an  insurance  company  to  settle  the  liability  associated  with  the 
benefits under certain Maxus’ defined benefit pension plans, for a premium amount of US$115 million. The insurance company assumed the liabilities 
under these pension plans effective March 20, 2008, date in which the premium was paid by YPF Holdings, Inc. 

Considering the annuity contracts above mentioned, expected employer contributions and estimated future benefit payments for the remaining plans are: 

Expected employer contributions for next year 
Estimated future benefit payments are as follows: 
2008 
2009 
2010 
2011 
2012 
2013-2016 

F-19

Other Benefits

Gross 
Benefits 
Payments

Implied 
Medicare 
Subsidy

Pension 
Benefits 

-     

2     
2     
2     
2     
2     
7     

14

14
15
15
14
14
63

-

2
2
2
2
2
8

 
  
 
 
 
 
 
 
 
 
 
  
  
  
   
  
     
 
 
 
  
 
   
 
 
 
 
  
 
 
  
 
   
  
  
   
 
  
 
   
   
 
  
     
      
j)     Other expenses, net: 

Reserve for pending lawsuits and other claims 
Environmental remediation – YPF Holdings Inc. 
Defined benefit pension plans and other postretirement benefits (Note 3.i)
Miscellaneous 

k)    Income tax: 

Current income tax 
Deferred income tax 

2007 

Income (Expense)
2006 

2005

(194)    
(206)    
(21)    
(18)    
(439)    

(173)
(136)
(22)
127   
(204)  

(180)
(54)
(16)
(295)
(545)

2007

2006 

2005

(2,765)
7 
(2,758) (1)   

(2,859)
58 
(2,801)(1)

(3,440)
30 
(3,410)(1)

(1)    Corresponds to income tax incurred in Argentina as of December 31, 2007, 2006 and 2005, respectively.

The reconciliation of pre-tax income at the statutory tax rate, to the income tax as disclosed in the income statements for the years ended December 
31, 2007, 2006, and 2005, is as follows: 

Net income before income tax 
Statutory tax rate 

Statutory tax rate applied to net income before income tax
Permanent differences: 
Effect of the inflation adjustment into constant Argentine pesos
Income on long-term investments(2)
Not taxable foreign source income 
Tax free income – Law N° 19,640 (Tierra del Fuego) 
Miscellaneous 

Increase of valuation allowance for temporary differences and tax loss and credit carryforwards(1) 

2007 

2006 

2005

6,844 

35%   

7,258

35% 

8,772

35%

(2,395)    

(2,540)

(3,070)

(276)    
12 
39 
19 
(45)    

(399)
64
25
81
68

(367)
14
14
46
(29)

(112)    
(2,758)    

(100)  
(2,801)  

(18)
(3,410)

(1)  Relates to changes in circumstances and prospects that affect the future use of the temporary differences, tax loss and credit carryforwards.
(2)  The Company does not provide for income taxes on the unremitted earnings of equity method investees because they will be remitted in a tax free liquidation.

The breakdown of the net deferred tax asset as of December 31, 2007, 2006 and 2005, is as follows: 

Deferred tax assets 

Tax loss and credit carryforwards 
Non deductible allowances and reserves and other liabilities
Miscellaneous 
Total deferred tax assets 

Deferred tax liabilities 

Fixed assets 
Miscellaneous 

Total deferred tax liabilities 
Valuation allowances 

Net deferred tax asset 

2007 

2006 

2005

812(1)   
930 
290 
2,032 

(449)    
(76)    
(525)    
(990)    
517 

645
917
159
1,721

(286)
(72)
(358)
(853)
510   

522
820
352
1,694

(424)
(65)
(489)
(753)
452 

(1)  Tax loss and credit carryforwards will expire as follows: 671 after five years and 141 that carry forward indefinitely.

F-20

  
  
  
  
 
 
 
 
 
 
 
  
  
  
  
   
  
     
 
  
 
  
 
 
  
 
   
   
 
   
 
  
  
 
 
  
 
   
   
 
  
  
   
  
   
   
   
   
  
  
   
  
 
  
 
 
 
   
   
   
   
  
  
   
  
   
 
   
As explained in Note 2.g, the difference between the book value of fixed assets in Argentina remeasured into constant Argentine pesos and their 
corresponding  cost  used  for  the  tax  basis,  is  a  deferred  tax  liability  of  1,525,  1,801  and  2,200  as  of  December  31,  2007,  2006  and  2005, 
respectively. The mentioned difference will continue to be reduced as the corresponding fixed assets are depreciated or retired. 

l)     Net sales: 

Sales 
Turnover tax 
Hydrocarbon export withholdings 

4.    CAPITAL STOCK 

2007 

2006 

2005

30,535     
(567)    
(864)    
29,104     

26,996
(460)
(901)  
25,635   

24,051
(372)
(778)
22,901 

YPF’s subscribed capital, as of December 31, 2007, 2006 and 2005, was 3,933 and was represented by 393,312,793 shares of common stock and divided 
into four classes of shares (A, B, C and D), with a par value of Argentine pesos 10 and one vote per share. These shares are fully subscribed, paid-in and 
authorized for stock exchange listing. 

As of December 31, 2007, Repsol YPF S.A. (“Repsol YPF”) controlled the Company, directly and indirectly, through a 99.04% shareholding. Repsol 
YPF’s legal address is Paseo de la Castellana 278, 28046 Madrid, Spain. On February 21, 2008, Repsol YPF entered into a shares sale and purchase 
agreement with Petersen Energía S.A. (“PESA”) pursuant to which Repsol YPF sold to PESA shares of YPF representing 14.9% of YPF’s capital stock 
for US$ 2,235 million (the “Transaction”). The Transaction is subject to the approval of certain Argentine regulatory agencies. Simultaneously with the 
execution of such shares sale and purchase agreement, Repsol YPF granted certain affiliates of PESA an option to purchase from Repsol YPF up to an 
additional 10.1% of YPF’s outstanding capital stock within four years after consummation of the Transaction. Additionally, Repsol YPF and PESA have 
signed a shareholders’ agreement, in connection with the Transaction, establishing, among other things, the adoption of a dividend policy under which 
YPF will distribute 90% of the annual net income as dividends. They have also agreed to vote for the payment of a special dividend of US$ 850 million, 
of which half shall be paid in 2008 and half shall be paid in 2009. 

Additionally, on February 29, 2008, Repsol YPF has started an offering process for the sale of shares representing 20% of the capital stock of YPF (the 
“Offering”). The effective date of the Offering will be subject, among other conditions, to the authorization of the SEC and the CNV, considering current 
requirements and regulations. 

Repsol  YPF's  principal  business  is  the  exploration,  development  and  production  of  crude  oil  and  natural  gas,  transportation  of  petroleum  products, 
liquefied  petroleum  gas  and  natural  gas,  petroleum  refining,  production  of  a  wide  range  of  petrochemicals  and  marketing  of  petroleum  products, 
petroleum derivatives, petrochemicals, liquefied petroleum gas and natural gas. 

As of December 31, 2007, there are 3,764 Class A shares outstanding. So long as any Class A share remains outstanding, the affirmative vote of the 
Argentine Government is required for: 1) mergers, 2) acquisitions of more than 50% of YPF’s shares in an agreed or hostile bid, 3) transfers of all the 
YPF’s  production  and  exploration  rights,  4)  the  voluntary  dissolution  of  YPF  or  5)  change  of  corporate  and/or  tax  address  outside  the  Argentine 
Republic. Items 3) and 4) will also require prior approval by the Argentine Congress. 

5.    RESTRICTED ASSETS AND GUARANTEES GIVEN

As  of  December  31,  2007,  YPF  has  signed  guarantees  in  relation  to  the  financing  activities  of  Pluspetrol  Energy S.A.,  Central  Dock  Sud  S.A.  and 
Inversora Dock Sud S.A. in an amount of approximately US$ 24 million (US$ 21 million as of April 10, 2008), US$ 81 million (US$ 23 million as of 
April 10, 2008) and 5, respectively. The corresponding loans have final maturity in 2011, 2013 and 2009, respectively. 

F-21

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
  
     
 
  
 
Additionally, YPF has committed to contribute capital up to a maximum amount that will enable to satisfy certain environmental liabilities assumed by 
Maxus  Energy  Corporation  (“Maxus)  and  Tierra  Solutions  Inc.  (“Tierra”),  together  “the  Parties”,  subsidiaries  of  YPF  Holdings  Inc.  and  to  meet  its 
operating  expenses  (see  Note  10.a).  On  October  8,  2007,  YPF  and  the  Parties  have  signed  an  agreement  which,  after  making  the  corresponding 
contributions  and  under  the  fulfillment  of  certain  conditions  establishes,  among  other  things,  the  end  of  YPF’s  obligations  under  the  Contribution 
Agreement. The conditions established in the agreement were fulfilled on March 31, 2008. 

6.    PARTICIPATION IN JOINT VENTURES AND OTHER AGREEMENTS

As of December 31, 2007, the main exploration and production joint ventures and other agreements in which the YPF participates are the following: 

Name and Location 

   Ownership Interest

Acambuco 
Salta 
Aguada Pichana 
Neuquén 
Aguaragüe 
Salta 
CAM-2/A SUR 
Tierra del Fuego 
Campamento Central 
/Cañadón Perdido 
Chubut 
Consorcio CNQ 7/A 
La Pampa and Mendoza 

El Tordillo 
Chubut 

La Tapera y Puesto Quiroga 
Chubut 
Llancanello 
Mendoza 
Magallanes 
Santa Cruz, Tierra del Fuego and National Continental Shelf
Palmar Largo 
Formosa ans Salta 
Puesto Hernández 
Neuquén and Mendoza 
Ramos 
Salta 
San Roque 
Neuquén 
Tierra del Fuego 
Tierra del Fuego 
Yacimiento La Ventana - Río Tunuyan 
Mendoza 
Zampal Oeste 
Mendoza 

22.50%

27.27%

30.00%

50.00%

50.00%

50.00%

12.20%

12.20%

51.00%

50.00%

30.00%

61.55%

15.00%(1) 

34.11%

Operator
  Pan American Energy LLC 

   Total Austral S.A. 

   Tecpetrol S.A. 

   Sipetrol S.A. 

   YPF S.A. 

   Petro Andina Resources Ltd. Sucursal 

Argentina 
  Tecpetrol S.A. 

   Tecpetrol S.A. 

   YPF S.A. 

   Sipetrol S.A. 

   Pluspetrol S.A. 

   Petrobras Energía S.A. 

   Pluspetrol Energy S.A. 

   Total Austral S.A. 

30.00%

   Petrolera L.F. Company S.R.L.

60.00%

70.00%

  YPF S.A. 

   YPF S.A. 

(1)  Additionally, YPF has a 27% indirect ownership interest through Pluspetrol Energy S.A.

As of December 31, 2007, YPF has been awarded the bids on  its own or with other partners and received exploration permits  for acreage in several 
areas. 

Additionally, certain YPF subsidiaries participate in exploration and production agreements in Guyana and in the Gulf of Mexico. 

F-22

  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
  
  
  
  
  
  
  
  
  
  
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
  
  
The assets and liabilities as of December 31, 2007, 2006 and 2005 and production costs of the joint ventures and other agreements for the years then 
ended are as follows: 

Current assets 
Noncurrent assets 
Total assets 

Current liabilities 
Noncurrent liabilities 
Total liabilities 

Production costs 

2007 

2006 

2005

187     
3,606     
3,793     

474     
373     
847     
1,423     

538
2,463   
3,001   

405
343   
748   
1,098   

75
2,110 
2,185 

280
186 
466 
894 

Participation in joint ventures and other agreements have been calculated based upon the last available financial statements as of the end of each year, 
taking into account significant subsequent events and transactions as well as available management information. 

YPF Holdings Inc. has entered into various operating agreements and capital commitments associated with the exploration and development of its oil 
and gas properties which are not material except those for the Neptune Prospect. Total commitments related to the development of the Neptune Prospect 
located in the vicinity of the Atwater Valley Area, Blocks 573, 574, 575, 617 and 618 are US$ 28 million for 2008. 

7.    BALANCES AND TRANSACTIONS WITH RELATED PARTIES

The  principal  outstanding  balances  as  of  December  31,  2007,  2006  and  2005  from  transactions  with  jointly  controlled  companies,  companies  under 
significant influence, the parent company and other related parties under common control are as follows: 

Jointly controlled companies:     
Profertil S.A. 
Compañía Mega S.A. (“Mega”)     
Refinería del Norte S.A. 

(“Refinor”) 

Trade 
receivables    
  Current 

2007 
Other 
receivables  

    Current 

-     
167     

39     
206     

- 
- 

- 
- 

Companies under significant 

influence: 

25     

27 

Parent company and other 
related parties under common 
control: 
Repsol YPF 
Repsol YPF Transporte y 

Trading S.A. 
Repsol YPF Gas S.A. 
Repsol YPF Brasil S.A. 
Repsol International Finance 

B.V. 

Repsol Netherlands Finance B.V.    
Gaviota Re S.A. 
Repsol YPF E&P Bolivia S.A. 
Others 

-     

199     
30     

10     

-     
-     
-     
-     
63     
302     
533     

6 

- 
5 

(1)

1,102

(1)

1,427
51 
- 
- 
63 
2,654 
2,681 

Accounts 
payable
  Current

Trade 
receivables

2006
Other 
receivables

    Current

    Current

Accounts 
payable
    Current

2005

Trade 

receivables     Other receivables

Accounts 
payable
    Current     Noncurrent     Current

    Current 

-
-

19   
19

33   

43

3
1

-

-
-
-
-
41   
88   

140

-
105

50   
155

36   

-

110
34

12

-
-
-
-
44   
200   
391

-
1

-   
1

8   

-
-

6   
6

2     
110     

41     
153     

-     
-     

-     
-     

143   

38     

4     

979

-
5

1,305

1,520
47
-
-
18   
3,874   
3,883

22

34
2

-

-
-
-
-
31   
89   

238

-     

1,404     

62     
18     

15     

-     
-     
-     
-     
66     
161     
352     

-     
1     

18     

1,571     
116     
-     
2     
23     
3,135     
3,139     

-
-

-   
-

-   

-

-
-

267

-
-
104
-
-   
371   
371

-
-

12 
12

46 

83

30
1

19

-
-
-
69
19 
221 
279

(1)  As of the date of the issuance of these financial statements, these receivables were fully collected.

F-23

  
  
  
  
  
  
  
  
 
  
  
  
  
   
  
     
 
 
  
      
 
 
 
  
 
   
   
 
  
 
 
  
 
 
     
 
   
     
     
   
   
   
   
   
  
   
   
   
   
   
      
  
   
      
      
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
   
   
  
   
   
The Company maintains purchase, sale and financing transactions with related parties. The principal purchase, sale and financing transactions with these 
companies for the years ended December 31, 2007, 2006 and 2005, include the following: 

2007 

2006

2005

Purchases 
and 
services     

Loans 
(granted)
collected    

Interest
gains 
(losses)

  Sales     

Sales

Purchases 
and 
services

Loans 
(granted)
collected

Interest
gains 
(losses)

Purchases 
and 
services   

Loans 
(granted)
collected

Interest
gains 
(losses)

Sales     

Jointly controlled 
companies: 
Profertil S.A. 
Mega 
Refinor 
Petroken 

Companies under 

significant influence:     

32     
669     
199     
-     
900     

86     
-     
66     
-     
152     

-     
-     
-     
-     
-     

90     

151     

25     

-
-
-
-   
-

-   

29
629
200

-   

858

53
-
79

-   

132

152   

231   

-
-
-
-   
-

-   

-
-
-
-   
-

-   

32     
514     
156     
87     
789     

35 
- 
87 

3   

125 

245     

262   

Parent company and 
other related parties 
under common control:     
Repsol YPF 
Repsol YPF Transporte y 

Trading S.A. 
Repsol YPF Brasil S.A. 
Repsol YPF Gas S.A. 
Repsol International 
Finance B.V. 
Repsol Netherlands 
Finance B.V. 
S.A. 

Repsol YPF E&P Bolivia 

Repsol YPF Chile Ltda. 
Gaviota Re S.A. 
Others 

-     

18     

926     

    1,276     
116     
227     

-     

-     

-     
-     
-     
160     
    1,779     
    2,769     

827     
-     
6     

-     

-     

-     
-     
-     
10     
861     
1,164     

-     
225     
-     

143     

(2)    

-     
-     
-     
-     
1,292     
1,317     

15

-
88
-

91

7

-

923
97
210

-

-

7

654
-
5

-

-

-
-
-
-   
201   
201   

1
-
-
157   
1,388   
2,398   

446
-
-
11   
1,123   
1,486   

350

-
(1,011)
-

63

68

-
-
-
-   
(530)  
(530)  

67

-
69
-

65

8

-     

546     
72     
192     

-     

-     

16 

508 
- 
4 

- 

- 

-
-
-
-   
209   
209   

2     
-     
-     
205     
1,017     
2,051     

323 
- 
- 
1   
852   
1,239   

-
-
-
-   
-

-   

-

-
-
53

191

(112)

-
306
-
-   
438   
438   

-
-
-
- 
-

- 

56

-
11
5

62

1

-
20
104
- 
259 
259 

8.    CONSOLIDATED BUSINESS SEGMENT INFORMATION

The Company organizes its business into four segments which comprise: the exploration and production, including contractual purchases of natural gas 
and crude oil purchases arising from service contracts and concession obligations, as well as, crude oil intersegment sales, natural gas and its derivatives 
sales and electric power generation (“Exploration and Production”); the refining, transport and marketing of crude oil to unrelated parties and refined 
products  (“Refining  and  Marketing”);  the  petrochemical  operations  (“Chemical”);  and  other  activities,  not  falling  into  these  categories,  are  classified 
under  “Corporate  and  Other”,  which  principally  includes  corporate  administration  costs  and  assets,  construction  activities  and  environmental 
remediation activities related to YPF Holdings Inc. preceding operations (Note 10.a). 

Operating income (loss) and assets for each segment have been determined after intersegment adjustments. Sales between business segments are made at 
internal transfer prices established by the Company. 

F-24

  
  
 
  
  
  
  
  
  
  
 
  
   
     
     
     
     
 
   
   
   
   
  
   
      
      
      
      
  
   
   
   
   
   
   
   
   
   
  
  
Year ended December 31, 2007 
Net sales to unrelated parties 
Net sales to related parties 
Net intersegment sales 
Net sales 
Operating income (loss) 
Income on long-term investments 
Depreciation 
Acquisitions of fixed assets 
Assets 
Year ended December 31, 2006 
Net sales to unrelated parties 
Net sales to related parties 
Net intersegment sales 
Net sales 
Operating income (loss) 
Income on long-term investments 
Depreciation 
Acquisitions of fixed assets 
Assets 
Year ended December 31, 2005 
Net sales to unrelated parties 
Net sales to related parties 
Net intersegment sales 
Net sales 
Operating income (loss) 
Income (loss) on long-term investments 
Depreciation 
Acquisitions of fixed assets 
Assets 

Exploration 
and 
Production

Refining and
Marketing

Chemical

Corporate 
and Other     

Consolidation
Adjustments

Total

3,288
724
14,056   
18,068   
5,679
18
3,616
4,861
19,893

3,076
774
14,033   
17,883   
6,564
167
3,263
4,886
18,987

2,910
626
11,659   
15,195   
7,140
28
2,230
3,706
17,911

20,375
2,045
1,858   
24,278   
1,234
16
377
898
11,199

17,651
1,624
1,526   
20,801   
258
16
329
733
9,349

15,791
1,425

962   
18,178   
1,900
12
367
541
8,807

2,563
-
892   
3,455   
500
-
92
143
2,220

2,401
-
647   
3,048   
572
-
85
137
1,876

2,062
-
207   
2,269   
542
(1)
75
104
1,658

109     
-     
440     
549     
(620)    
-     
54     
314     
5,421     

109     
-     
282     
391     
(540)    
-     
41     
176     
6,049     

87     
-     
243     
330     
(451)    
-     
35     
108     
4,818     

-
-

(17,246)  
(17,246)  
(136)
-
-
-
(631)

-
-

(16,488)  
(16,488)  

29
-
-
-
(867)

-
-

(13,071)  
(13,071)  

30
-
-
-
(970)

26,335
2,769
- 
29,104 
6,657
34
4,139
6,216
38,102

23,237
2,398
- 
25,635 
6,883
183
3,718
5,932
35,394

20,850
2,051
- 
22,901 
9,161
39
2,707
4,459
32,224

Export sales for the years ended December 31, 2007, 2006 and 2005 were 8,400, 8,649 and 8,644, respectively. Export sales were mainly to the United 
States of America, Brazil and Chile. 

9.    SOCIAL AND OTHER EMPLOYEE BENEFITS 

a)    Performance Bonus Programs: 

These programs cover certain YPF and its controlled companies' personnel. These bonuses are based on compliance with business unit objectives 
and  performance. They are calculated considering the  annual compensation of each employee, certain key  factors  related  to the  fulfillment of 
these objectives and will be paid in cash. 

The amount charged to expense related to the Performance Bonus Programs was 61, 44 and 38 for the years ended December 31, 2007, 2006 and 
2005, respectively. 

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b)    Retirement Plan: 

Effective March 1, 1995, YPF established a defined contribution retirement plan that provides benefits for each employee who elects to join the 
plan.  Each  plan  member  will  pay  an  amount  between  2%  and  9%  of  his  monthly  compensation  and  YPF  will  pay  an  amount  equal  to  that 
contributed by each member. 

The plan members will receive YPF’s contributed funds before retirement only in the case of voluntary termination under certain circumstances 
or dismissal without cause and additionally in the case of death or incapacity. YPF has  the right to discontinue this plan at any time, without 
incurring termination costs. 

The total charges recognized under the Retirement Plan amounted to approximately 11, 9 and 9 for the years ended December 31, 2007, 2006 
and 2005, respectively. 

10.  COMMITMENTS AND CONTINGENCIES 

a)    Pending lawsuits and contingencies: 

As of December 31, 2007, the Company has recorded the pending lawsuits, claims and contingencies which are probable and can be reasonably 
estimated. The most significant pending lawsuits and contingencies reserved are described in the following paragraphs. 

-  Pending  lawsuits:  In  the  normal  course  of  its  business,  the  Company  has  been  sued  in  numerous  labor,  civil  and  commercial  actions  and
lawsuits.  Management,  in  consultation  with  the  external  counsels,  has  reserved  an  allowance  considering  its  best  estimation,  based  on  the
information available as of the date of the issuance of these financial statements, including counsel fees and judicial expenses.

-   Liquefied petroleum gas market: On March 22, 1999, YPF was notified of Resolution No. 189/1999 from the former Department of Industry,
Commerce  and  Mining  of  Argentina,  which  imposed  a  fine  on  YPF  of  109,  stated  in  Argentine  pesos  as  of  that  date,  based  on  the
interpretation that YPF had purportly abused of its dominant position in the bulk liquefied petroleum gas (“LPG”) market due to the existence 
of  different  prices  between  the  exports  of  LPG  and  the  sales  to  the  domestic  market  from  1993  through  1997.  In  July  2002,  the  Argentine
Supreme Court confirmed the fine and YPF carried out the claimed payment.

Additionally, Resolution No. 189/1999 provided the beginning of an investigation in order to prove whether the penalized behavior continued 
from  October  1997  to  March  1999.  On  December  19,  2003,  the  National  Antitrust  Protection  Board  (the  “Antitrust  Board”)  imputed  the 
behavior  of  abuse  of  dominant  position  during  the  previously  mentioned  period  to  the  Company.  On  January  20,  2004,  YPF  answered  the 
notification: (i) opposing the preliminary defense claiming the application of the statutes of limitation and alleging the existence of defects in 
the imputation procedure (absence of majority in the resolution that decided the imputation and pre-judgment by its signers); (ii) arguing the 
absence of abuse of dominant position; and (iii) offering the corresponding evidence. 

The request of invalidity by defects in the imputation procedure mentioned above was rejected by the Antitrust Board. This resolution of the 
Antitrust  Board  was  confirmed  by  the  Economic  Penal  Appellate  Court,  and  it  was  confirmed,  on  September  27,  2005,  pursuant  to  the 
Argentine Supreme Court's rejection of the complaint made by YPF due to the extraordinary appeal denial. 

Additionally, on August 31, 2004, YPF filed an appeal with the Antitrust Board in relation to the resolution that denied the claim of statutes of 
limitation.  The  Antitrust  Board  conceded  the  appeal  and  remitted  proceedings  for  its  resolution  by  the  Appeals  Court.  However,  in  March 
2006,  YPF  was  notified  that  the  proceedings  were  opened  for  the  production  of  evidence.  During  August  and  September  2007,  testimonial 
hearings were held for by YPF’s witnesses. 

F-26

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Despite  the  solid  arguments  expressed  by  YPF,  the  mentioned  circumstances  make  evident  that,  preliminarily,  the  Antitrust  Board 
preliminarily  denied the defenses filed  by YPF  and  appears reluctant to modify  the doctrine provided by  the  Resolution  No. 189/1999  and, 
furthermore, the Appeals Court’s decisions tend to confirm the decisions made by the Antitrust Board. 

-  Tax claims: On January 31, 2003, YPF received a claim from the Federal Administration of Public Revenue (“AFIP”), stating that the sales 
corresponding to forward oil sale agreements entered into by YPF, should have been subject to an income tax withholding. On March 8, 2004,
the AFIP formally notified YPF of a claim for approximately 45 plus interests and fines. Additionally, on June 24, 2004, YPF received a new
formal  claim  from  the  AFIP,  considering  that  the  services  related  to  these  contracts  should  have  been  taxed  with  the  value  added  tax.
Consequently, during 2004, YPF presented its defense to the AFIP rejecting the claims and arguing its position. However, on December 28,
2004, YPF was formally notified of a resolution from the AFIP confirming its original position in both claims for the period 1997 to 2001. The
Company has appealed such resolution in the National Fiscal Court. In 2006, YPF conditionally paid the amounts corresponding to periods
that followed those included in the claim by the AFIP and filed reimbursement summary proceedings so as to avoid facing interest payment or
a fine. On March 18, 2008 the AFIP notified us of the rejection of the reimbursement previously mentioned. The Company will appeal that
decision to the National Fiscal Court. 

In addition, the Company has received several claims from the AFIP and from the provincial and municipal fiscal authorities, which are not 
individually significant. 

-   Liabilities  and  contingencies  assumed  by  the  Argentine  Government:  The YPF  Privatization  Law  provided  for  the  assumption  by  the 
Argentine Government of certain liabilities of the predecessors as of December 31, 1990. In certain lawsuits related to events or acts that took
place before December 31, 1990, YPF has been required to advance the payment established in certain judicial decisions. YPF has the right to
be reimbursed for these payments by the Argentine Government pursuant to the above-mentioned indemnity. 

-   Natural gas market: 

Export  sales:  Pursuant  to  Resolution  No.  265/2004  of  the  Secretariat  of  Energy,  the  Argentine  Government  created  a  program  of  “useful” 
curtailment of natural gas exports and their associated transportation service. Such Program was initially implemented by means of Regulation 
No. 27/2004 of the Under-Secretariat of Fuels, which was subsequently substituted by the Program of Rationalization of Gas Exports and Use 
of  Transportation  Capacity  (the  “Program”)  approved  by  Resolution  No.  659/2004  of  the  Secretariat  of  Energy.  Additionally,  Resolution 
No. 752/2005 of the Secretariat of Energy provided that industrial users and thermal generators (which according to this resolution will have to 
request volumes of gas directly from the producers) could also acquire the natural gas from the cutbacks on natural gas export through the 
Permanent Additional Injections mechanism created by this resolution. By means of the Program and/or the Permanent Additional Injection, 
the Argentine Government, requires natural gas exporting producers to deliver additional volumes to the domestic market in order to satisfy 
natural gas demand of certain domestic consumers of the Argentine market (“Additional Injection Requirements”). Such additional volumes 
are not contractually committed by YPF, who is thus forced to affect natural gas exports, the execution has been conditioned. The mechanisms 
that affect the exports established by the resolutions No. 659/2004 and 752/2005 have been adapted by SE Resolution No. 599/2007 depending 
on whether the producers have signed or not the Proposed Agreement, ratified by such resolution, between the Secretariat of Energy and the 
Producers.  Additionally,  the  Argentine  Government,  through  other  instructions  made  using  different  procedures,  has  limited  natural  gas 
exports (in conjunction with the Program and the Additional Injection Requirements, named the “Restrictions”). 

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As a result of the Restrictions, in several occasions during the years 2004, 2005, 2006 and 2007, YPF has been forced to suspend, either totally 
or  partially, its natural gas  deliveries  to some  of  its export clients, with whom  YPF  has undertaken long-term firm  commitments to deliver 
natural gas. 

YPF has challenged the Program, the Permanent Additional Injection and the Additional Injection Requirements, as arbitrary and illegitimate, 
and  has  invoked  vis-à-vis  the  relevant  clients  that  such  measures  of  the  Argentine  Government  constitute  a  force  majeure  event  (act  of 
authority) that releases YPF from any liability and/or penalty for the failure to deliver the contractual volumes. A large number of clients have 
rejected the force majeure argument invoked by YPF, demanding the payment of indemnifications and/or penalties for the failure to comply 
with firm supply commitments, and/or reserving their rights to future claims in such respect (the “claims”). 

Electroandina S.A. and Empresa Eléctrica del Norte Grande S.A. (“Edelnor”) have rejected the force majeure argument invoked by YPF and 
have invoiced the penalty stipulated under the “deliver or pay” clause of the contract in September, 2007, for a total amount of US$ 93 million. 
The invoices have been rejected by YPF. Furthermore the above-mentioned companies have notified the formal start-up period of negotiations 
previous to any arbitration demand. Although such period is overdue, YPF has not been notified of the initiation of the arbitration demands. In 
addition, YPF has been notified of an arbitration demand from Innergy Soluciones Energéticas (“Innergy”). YPF has answered the arbitration 
complaint, and has filed a counterclaim based on the hardship provisions (“teoría de la imprevisión”) of the Argentine Civil Code. The parties 
have exchanged documentation requirements and have presented its appellate brief with the documental evidence and witnesses’ declaration. 
The damages claimed by Innergy amount to US$ 88 million plus interests, according to the invoice presented in the Innergy’s appellate brief, 
on  September  17,  2007.  Such  amount  might  be  increased  if  Innergy  incorporates  to  the  demand  the  invoices  for  penalties  received  for  the 
subsequent periods to August 2007. As of the issuance date of these financial statements, the parties have suspended the arbitration in order to 
start negotiations. 

Claim from Empresa Nacional de Electricidad S.A. (“ENDESA”): In January, 2005, YPF was notified of a request made by ENDESA for an 
arbitration to resolve a dispute relating to an alleged breach of a contractual clause in an export contract signed in June, 2000. The clause was 
related to the increase of natural gas deliveries and ENDESA has requested payment for damages. The parties reached an agreement which 
amends  the  export  contract  (“the  Amendment”)  which  was  approved  on  August  31,  2007  by  the  Secretariat  of  Energy.  As  a  result  of  the 
Amendment, the parties settled the arbitration and that decision was communicated to the Arbitral Court. YPF paid US$ 8 million to ENDESA 
for  the  termination  of  the  arbitration  and  ENDESA  resigned  to  any  claim  related  to  past  periods.  Finally,  the  Amendment  adjusted  the 
maximum half-yearly compensations that YPF would eventually have to pay in connection with deficiencies in the natural gas deliveries. 

F-28

  
  
  
  
  
  
  
Domestic sales: Central Puerto S.A. has sued YPF for cutbacks in natural gas supply pursuant to their respective contracts. The Company has 
formally denied such breach, based on the view that, pending the restructuring of such contracts, it is not obliged to confirm nominations of 
natural gas to those clients during certain periods of the year. On March 15, 2007, Central Puerto S.A. notified YPF of the beginning of pre-
arbitral negotiations in relation to the agreements for the supply of its plants located in Buenos Aires and Loma La Lata, Province of Neuquén. 
On May 29, 2007, the parties reached a settlement agreement in order to solve their disputes related to the Loma La Lata natural gas supply 
contract. Additionally, on June 6, 2007, Central Puerto S.A. notified its decision to submit to arbitration under the rules of the International 
Chamber of Commerce the controversy related to natural gas supply to its combined-cycle plant located in the city of Buenos Aires. Central 
Puerto S.A. nominated its arbiter and notified YPF the commencement of an arbitration proceeding in that Chamber. On June 21, 2007, YPF 
nominated its arbiter and notified its decision to submit the controversy related to certain amounts claimed to Central Puerto S.A., also related 
to  the  natural  gas  supply  to  its  combined-cycle  located  in  the  city  of  Buenos  Aires  to  an  arbitration  proceeding.  On  July  23,  2007,  YPF 
received the arbitration demand which was answered on September 24, 2007, denying the claims of Central Puerto. Besides, the Company has 
filed a counterclaim requesting, among other things, the termination of the contract or, in absence of this, the revision based on the hardship 
provision and the “both-parties-effort”. On December 3, 2007, Central Puerto S.A. submitted a presentation requesting (i) the rejection of all 
subsidiary claims presented by YPF S.A., including the request that the Chamber ratifies the effectiveness of the contract and the rejection of 
the  fair  reconvention  of  the  contract;  (ii)  the  rejection  of  the  settlement  and  payment  claim  related  to  amounts  due  by  Central  Puerto  S.A. 
pursuant to the “take or pay” clause; (iii) the rejection of the settlement and payment claim related to the adjustment by the application of the 
“Coeficiente de Estabilización de Referencia” (“CER”), and in subsidy opposing the prescription exception; (iv) the inappropriateness of the 
claim in relation with the price differential payment. 

On  February  11,  2008,  an  audience  was  held  with  the  arbitral  trial  members  and  the  “Acta  de  Misión”  was  subscribed.  In  that  document, 
Central  Puerto  S.A.  argued  that  it  could  not  determine  the  claimed  amount  until  the  performance  of  the  corresponding  work  of  experts. 
However, it accepted to fix the payment provision on its charge based on the maximum value determined by CCI Rules (Apendix III). YPF 
estimated  in,  approximately,  US$  11  million,  plus  interest  and  CER,  the  amount  that  must  be  claimed  as  payable  to  its  favor,  under  the 
reconvention process. All of these amounts are subject to expert review. On March 12, 2008, the Company and Central Puerto suspended the 
arbitration for 30 days to allow for settlement discussions. 

As  of  December  31,  2007,  the  Company  has  reserved  costs  for  penalties  associated  with  the  failure  to  deliver  the  contractual  volumes  of 
natural gas in the export and domestic markets which are probable and can be reasonably estimated. 

-  Environmental  claims  in  La  Plata:  There  are  certain  claims  that  require  a  compensation  for  individual  damages  purportedly  caused  by  the
operation of the La Plata Refinery and the environmental remediation of the channels adjacent to the mentioned refinery. During 2006, YPF
submitted  a  presentation  before  the  Environmental  Ministry  of  the  Province  of  Buenos  Aires  which  puts  forward  for  consideration  the
performance of a study for the characterization of environmental associated risks. As mentioned previously, YPF has the right of indemnity for
events and claims previous to January 1, 1991, according to Law No. 22,145 and Decree No. 546/1993. Besides, there are certain claims that
could  result  in  the  requirement  to  make  additional  investments  connected  with  the  operations  of  La  Plata  Refinery  and  claims  for  the
compensation to the neighbours of La Plata Refinery.

-   Environmental contingencies and other claims and commitments of YPF Holdings Inc. – a wholly owned subsidiary of YPF.

Laws and regulations relating to health and environmental quality in the United States of America affect nearly all of the operations of YPF 
Holdings  Inc.  These  laws  and  regulations  set  various  standards  regulating  certain  aspects  of  health  and  environmental  quality,  provide  for 
penalties and other liabilities for the violation of such standards and establish in certain circumstances remedial obligations. 

F-29

  
  
  
  
  
  
  
  
  
YPF Holdings Inc. believes that its policies and procedures in the area of pollution control, product safety and occupational health are adequate 
to prevent unreasonable risk of environmental and other damage, and of resulting financial liability, in connection with its business. Some risk 
of environmental and other damage is, however, inherent in particular operations of YPF Holdings Inc. and, as discussed below, Maxus and 
Tierra (both controlled by YPF Holdings Inc.) could have certain potential liabilities associated with operations of Maxus’ former chemical 
subsidiary. 

YPF Holdings Inc. cannot predict what environmental legislation or regulations will be enacted in the future or how existing or future laws or 
regulations  will  be  administered  or  enforced.  Compliance  with  more  stringent  laws  or  regulations,  as  well  as  more  vigorous  enforcement 
policies of the regulatory agencies, could in the future require material expenditures by YPF Holdings Inc. for the installation and operation of 
systems  and  equipment  for  remedial  measures,  possible  dredging  requirements  and  in  certain  other  respects.  Also,  certain  laws  allow  for 
recovery of natural resource damages from responsible parties and ordering the implementation of interim remedies to abate an imminent and 
substantial endangerment to the environment. Potential expenditures for any such actions cannot be reasonably estimated. 

In  connection  with  the  sale  of  Maxus’  former  chemical  subsidiary,  Diamond  Shamrock  Chemicals  Company  ("Chemicals")  to  Occidental 
Petroleum  Corporation  (“Occidental”)  in  1986,  Maxus  agreed  to  indemnify  Chemicals  and  Occidental  from  and  against  certain  liabilities 
relating to the business or activities of Chemicals, including environmental liabilities relating to chemical plants and waste disposal sites used 
by Chemicals prior to the selling date. Tierra has agreed to assume essentially all of Maxus’ aforesaid indemnity obligations to Occidental in 
respect of Chemicals. 

As  of  December  31,  2007,  reserves  for  the  environmental  contingencies  and  other  claims  totaled  approximately  421.  YPF  Holdings  Inc.’s 
Management believes it has adequately reserved for all environmental contingencies, which are probable and can be reasonably estimated as of 
such  time;  however,  changes  in  circumstances,  including  new  information  or  new  requirements  of  governmental  entities,  could  result  in 
changes, including additions, to such reserves in the future. The most significant contingencies are described in the following paragraphs: 

In the following discussion concerning plant sites and third party sites, references to YPF Holdings Inc. include, as appropriate and solely for 
ease  of  reference,  references  to  Maxus  and  Tierra.  As  indicated  above,  Tierra  is  also  a  subsidiary  of  YPF  Holdings  Inc.  and  has  assumed 
certain of Maxus’ obligations. 

Newark,  New  Jersey.  A  consent  decree,  previously  agreed  upon  by  the  U.S.  Environmental  Protection  Agency  ("EPA"),  the  New  Jersey 
Department of Environmental Protection and Energy ("DEP") and Occidental, as successor to Chemicals, was entered in 1990 by the United 
States  District  Court  of  New  Jersey  and  requires  implementation  of  a  remedial  action  plan  at  Chemicals'  former  Newark,  New  Jersey 
agricultural chemicals plant. The approved remedy has been completed and paid for by Tierra. This project is in the operation and maintenance 
phase. YPF Holdings Inc. has reserved approximately 49 as of December 31, 2007, in connection with such activities. 

Passaic River, New Jersey. Studies have indicated that sediments of the Newark Bay watershed, including the Passaic River adjacent to the 
former Newark plant, are contaminated with hazardous chemicals from many sources. Maxus, forced to act on behalf of Occidental, negotiated 
an agreement with the EPA under which Tierra has conducted further testing and studies near the plant site. While some work remains, these 
studies were substantially completed in 2005. In addition: 

-  The EPA and other agencies are addressing the lower Passaic River in a joint federal, state, local and private sector cooperative effort 

designated as the Lower Passaic River Restoration Project (“PRRP”). Tierra, along with other entities, participated in an initial remedial 
investigation and feasibility study (“RIFS”) in connection with the PRRP. The parties are discussing the possibility of further work with the 
EPA. The entities that have agreed to fund the RIFS have negotiated allocations of responsibility among themselves based on a number of 
considerations. 

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-  In 2003, the DEP issued Directive No. 1 to approximately 66 entities, including Occidental and Maxus and certain of their respective related 

entities. Directive No. 1 seeks to address natural resource damages allegedly resulting from almost 200 years of historic industrial and 
commercial development of the lower 17 miles of the Passaic River and a part of its watershed. Directive No. 1 asserts that the named entities 
are jointly and severally liable for the alleged natural resource damages without regard to fault. The DEP has asserted jurisdiction in this matter 
even though all or part of the lower Passaic River has been designated as a Superfund site and is a subject of the PRRP. Directive No. 1 calls 
for the following actions: interim compensatory restoration, injury identification, injury quantification and value determination. Maxus and 
Tierra responded to Directive No. 1 setting forth good faith defenses. Settlement discussions between the DEP and the named entities have 
been held; however, no agreement has been reached or is assured.

-   In 2004, the EPA and Occidental entered into an administrative order on consent (the “AOC”) pursuant to which Tierra (on behalf of 

Occidental) has agreed to conduct testing and studies to characterize contaminated sediment and biota in the Newark Bay. The initial field 
work on this study, which includes testing in the Newark Bay, has been substantially completed. Discussions with the EPA regarding 
additional work that might be required are underway.

-   In December 2005, the DEP issued a directive to Tierra, Maxus and Occidental directing said parties to pay the State of New Jersey’s costs of 
developing a Source Control Dredge Plan focused on allegedly dioxin-contaminated sediment in the lower six-mile portion of the Passaic 
River. The development of this plan is estimated by the DEP to cost approximately US$ 2 million. This directive was issued even though this 
portion of the lower Passaic River is a subject of the PRRP. The DEP has advised the recipients that (a) it is engaged in discussions with the 
EPA regarding the subject matter of the directive, and (b) they are not required to respond to the directive until otherwise notified.

-   In December 2005, the DEP sued YPF Holdings Inc., Tierra, Maxus and several affiliated entities, in addition to Occidental, in 

connection  with dioxin contamination allegedly emanating from Chemicals’ former Newark plant and contaminating the lower portion of the 
Passaic River, Newark Bay, other nearby waterways and surrounding areas. The DEP seeks unspecified and punitive damages and other 
matters. The defendants have made responsive pleadings and filings.

-   In June 2007, EPA released a draft Focused Feasibility Study (the “FFS”) that outlines several alternatives for remedial action in the lower 

eight miles of the Passaic River. These alternatives range from no action, which would result in comparatively little cost,  to extensive 
dredging and capping, which according to the draft FFS, EPA estimated could cost from US$ 0.9 billion to US$ 2.3 billion and are all 
described by EPA as involving proven technologies that could be carried out in the near term, without extensive research. Tierra, in 
conjunction with the other parties of the PRRP group, submitted comments on the draft FFS to EPA, as did other interested parties. In 
September 2007, EPA announced its intention to spend further time considering these comments, to issue a proposed plan for public comment 
by the middle of 2008 and to select a clean-up plan in the last quarter of 2008. Tierra will respond to any further EPA proposal as may be 
appropriate at the time. 

-   Tierra, acting on behalf of Occidental, is also performing and funding a separate RIFS to characterize sediment contamination and evaluate 

remedial alternatives in Newark Bay and portions of the Hackensack River, the Arthur Kill, and the Kill van Kull pursuant to a 2004 consent 
decree with EPA. 

-   In August 2007, the National Oceanic Atmospheric Administration (“NOAA”) sent a letter to the parties of the PRRP group, including Tierra 
and Occidental, requesting that the group enters into an agreement to conduct a cooperative assessment of natural resources damages in the 
Passaic River and Newark Bay. The PRRP group has responded through its common counsel requesting that discussions relating to such 
agreement be postponed until 2008, due in part to the pending FFS proposal by EPA. Tierra will continue to participate in the PRRP group 
with regard to this matter. In January 2008, the NOAA sent a letter to YPF S.A., YPF Holdings Inc., CLH Holdings Inc. and other entities, 
designating them as potentially responsible party (“PRP”).

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As of December 31, 2007, there is a total of approximately 126 reserved in connection with the foregoing matters related to the Passaic River 
and  surrounding  area,  comprising  the  estimated  costs  for  studies,  YPF  Holdings  Inc.’s  best  estimate  of  the  cash  flows  it  could  incur  in 
connection  with  remediation  activities  considering  the  studies  performed  by  Tierra,  and  in  addition  certain  other  matters  related  to  Passaic 
River and the Newark Bay. However, it is possible that other works, including interim remedial measures, may be ordered. In addition, the 
development  of  new  information  or  the  imposition  of  natural  resource  damages  or  remedial  actions  differing  from  the  scenarios  we  have 
evaluated could result in Maxus and Tierra incurring additional costs to the amount currently reserved. 

Hudson  County,  New  Jersey.  Until  1972,  Chemicals  operated  a  chromite  ore  processing  plant  at  Kearny,  New  Jersey  (“Kearny  Plant”). 
According to the DEP, wastes from these ore processing operations were used as fill material at a number of sites in and near Hudson County. 
The  DEP  and  Occidental,  as  successor  to  Chemicals,  signed  an  administrative  consent  order  with  the  DEP  in  1990  for  investigation  and 
remediation work at certain chromite ore residue sites in Kearny and Secaucus, New Jersey. 

Tierra, on behalf of Occidental, is presently performing the work and funding Occidental's share of the cost of investigation and remediation of 
these sites and is providing financial assurance in the amount of US$ 20 million for performance of the work. The ultimate cost of remediation 
is uncertain. Tierra submitted its remedial investigation reports to the DEP in 2001, and the DEP continues to review the report. 

Additionally, in May 2005, the DEP took two actions in connection with the chrome sites in Hudson and Essex Counties. First, the DEP issued 
a directive to Maxus, Occidental and two other chromium manufacturers directing them to arrange for the cleanup of chromite ore residue at 
three  sites  in  Jersey  City  and  the  conduct  of  a  study  by  paying  the  DEP  a  total  of  US$ 20  million.  While  YPF  Holdings  Inc.  believes  that 
Maxus is improperly named and there is little or no evidence that Chemicals’ chromite ore residue was sent to any of these sites, the DEP 
claims  these  companies  are  jointly  and  severally  liable  without  regard  to  fault.  Second,  the  State  of  New  Jersey  filed  a  lawsuit  against 
Occidental and two other entities in state court in Hudson County seeking, among other things, cleanup of various sites where chromite ore 
residue is allegedly located, recovery of past costs incurred by the state at such sites (including in excess of US$ 2 million allegedly spent for 
investigations and studies) and, with respect to certain costs at 18 sites, treble damages. The DEP claims that the defendants are jointly and 
severally liable, without regard to fault, for much of the damages alleged. During mediation, the parties have engaged in discussion regarding 
possible settlement; however, there is no assurance that these discussions will be successful. 

In November 2005, several environmental groups sent a notice of intent to sue the owners of the properties adjacent to the former Kearny Plant 
(the  “Adjacent  Property”),  including  among  others  Tierra,  under  the  Resource  Conservation  and  Recovery  Act.  The  stated  purpose  of  the 
lawsuit, if filed, would be to require the noticed parties to carry out measures to abate alleged endangerments to health and the environment 
emanating from the Adjacent Property. The parties have entered into an agreement that addresses the concerns of the environmental groups, 
and these groups have agreed, at least for now, not to file suit. 

Pursuant to a request of the DEP, in the second half of 2006, Tierra and other parties tested the sediments in a portion of the Hackensack River 
near the former Kearny Plant. Whether additional work will be required, is expected to be determined once the results of this testing have been 
analyzed. 

As of December 31, 2007, there is a total of approximately 60 reserved in connection with the foregoing chrome-related matters. The study of 
the levels of chromium in New Jersey has not been finalized, and the DEP is still reviewing the proposed action levels. The cost of addressing 
these  chrome-related  matters  could  increase  depending  upon  the  final  soil  action  levels,  the  DEP’s  response  to  Tierra’s  reports  and  other 
developments. 

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Painesville, Ohio. In connection with the operation until 1976 of one chromite ore processing plant ("Chrome Plant"), from Chemicals, the 
Ohio Environmental Protection Agency (“OEPA”) ordered to conduct a Remedial Investigation and Feasibility Study (“RIFS”) at the former 
Painesville's  Plant  area.  Tierra  has  agreed  to  participate  in  the  RIFS  as  required  by  the  OEPA.  Tierra  submitted  the  remedial  investigation 
report to the OEPA, which report was finalized in 2003. Tierra is submitting required feasibility reports separately. In addition, the OEPA has 
approved  certain  work,  including  the  remediation  of  specific  sites  within  the  former  Painesville  Works  area  and  work  associated  with  the 
development plans discussed below (the “Remediation Work”). The Remediation Work has begun. As the OEPA approves additional projects 
for the site of the former Painesville Works, additional amounts may need to be reserved. 

Over  ten  years  ago,  the  former  Painesville  Works  site  was  proposed  for  listing  on  the  national  Priority  List  under  the  Comprehensive 
Environmental Response, Compensation and Liability Act of 1980, as amended (“CERCLA”): however, the EPA has stated that the site will 
not be listed so long as it is satisfactorily addressed pursuant to the Director’s Order and OEPA’s programs. As of the date of issuance of these 
financial statements, the site has not been listed. YPF Holdings Inc. has reserved a total of 23 as of December 31, 2007 for its estimated share 
of the cost to perform the RIFS, the remediation work and other operation and maintenance activities at this site. The scope and nature of any 
further investigation or remediation that may be required cannot be determined at this time; however, as the RIFS progresses, YPF Holdings 
Inc. will continuously assess the condition of the Painesville's plants works site and make any changes, including additions, to its reserve as 
may be required. 

Third Party Sites. Pursuant to settlement agreements with the Port of Houston Authority and other parties, Tierra and Maxus are participating 
(on  behalf  of  Chemicals)  in  the  remediation  of  property  adjoining  Chemicals’  former  Greens  Bayou  facility  where  DDT  and  certain  other 
chemicals  were  manufactured.  As  of  December  31,  2007,  YPF  Holdings  Inc.  has  reserved  62  for  its  estimated  share  of  future  remediation 
activities associated with the Greens Bayou facility. Additionally, efforts have been initiated in connection with claims for natural resources 
damages. The amount of natural resources damages and the party’s obligations in respect thereof are unknown at the present time. 

In June 2005, the EPA designated Maxus as a PRP at the Milwaukee Solvay Coke & Gas site in Milwaukee, Wisconsin. The basis for this 
designation is Maxus alleged status as the successor to Pickands Mather & Co. and Milwaukee Solvay Coke Co., companies that the EPA has 
asserted are former owners or operators of such site. Preliminarily work in connection with the RIFS of this site commenced in the second half 
of 2006. Maxus has reserved 1 as of December 31, 2007 for its estimated share of the costs of the RIFS. Maxus lacks sufficient information to 
determine additional exposure or costs, if any, it might have in respect of this site. 

Maxus has agreed to defend Occidental, as successor to Chemicals, in respect of the Malone Services Company Superfund site in Galveston 
County, Texas. This site is a former waste disposal site where Chemicals is alleged to have sent waste products prior to September 1986. It is 
the subject of enforcement activities by the EPA. Although Occidental is one of many PRPs that have been identified and have agreed to an 
Administrative  Order  on  Consent,  Tierra  (which  is  handling  this  matter  on  behalf  of  Maxus)  presently  believes  the  degree  of  Occidental’s 
alleged involvement as successor to Chemicals is relatively small. 

Chemicals has also been designated as a PRP with respect to a number of third party sites where hazardous substances from Chemicals' plant 
operations allegedly were disposed or have come to be located. At several of these, Chemicals has no known exposure. Although PRPs are 
typically jointly and severally liable for the cost of investigations, cleanups and other response costs, each has the right of contribution from 
other  PRPs  and,  as  a  practical  matter,  cost  sharing  by  PRPs  is  usually  effected  by  agreement  among  them.  At  a  number  of  these  sites,  the 
ultimate response cost and Chemicals’ share of such costs cannot be estimated at this time. As of December 31, 2007, YPF Holdings Inc. has 
reserved 7 in connection with its estimated share of costs related to these sites. 

F-33

  
  
  
  
  
  
  
  
  
Black Lung Benefits Act Liabilities. The Black Lung Benefits Act provides monetary and medical benefits to miners disabled with black lung 
disease, and also provides benefits to the dependents of deceased miners if black lung disease caused or contributed to the miner’s death. As a 
result of the operations of its coal-mining subsidiaries, YPF Holdings Inc. is required to provide insurance of this benefit to former employees 
and their dependents. As of December 31, 2007, YPF Holdings Inc. has reserved 29 in connection with its estimate of these obligations. 

Legal Proceedings. In 1998, a subsidiary of Occidental filed a lawsuit in state court in Ohio seeking a declaration of the parties’ rights with 
respect to obligations for certain costs allegedly related to Chemicals’ Ashtabula, Ohio facility, as well as certain other costs. A settlement of 
this matter was reached in March 2007, with those activities required by the settlement document completed in the second quarter of 2007. 

In  2001,  the  Texas  State  Controller  assessed  Maxus  approximately  US$ 1  million  in  Texas  state  sales  taxes  for  the  period  of  September  1, 
1995  through  December  31,  1998,  plus  penalty  and  interest.  In  August  2004,  the  administrative  law  judge  issued  a  decision  affirming 
approximately US$ 1 million of such assessment, plus penalty and interest. YPF Holdings Inc. believes the decision is erroneous, has paid the 
revised tax assessment, penalty and interest (a total of approximately US$ 2 million under protest). Maxus filed suit in Texas state court in 
December 2004 challenging the administrative decision. The matter will be reviewed by a trial de novo in the court action. 

In 2002, Occidental sued Maxus and Tierra in state court in Dallas, Texas seeking a declaration that Maxus and Tierra have the obligation 
under  the  agreement  pursuant  to  which  Maxus  sold  Chemicals  to  Occidental  to  defend  and  indemnify  Occidental  from  and  against  certain 
historical obligations of Chemicals, including claims related to “Agent Orange” and vinyl chloride monomer (VCM), notwithstanding the fact 
that said agreement contains a 12-year cut-off for defense and indemnity obligations with respect to most litigation. Tierra was dismissed as a 
party, and the matter was tried in May 2006. The trial court decided that the 12-year cut-off period did not apply and entered judgment against 
Maxus. This decision was affirmed by the Court of Appeals in February 2008. This decision will require Maxus to accept responsibility of 
various  matters  which  it  has  refused  indemnification  since  1998  which  could  result  in  the  incurrence  of  material  costs  in  addition  to  YPF 
Holdings Inc.’s current reserves for this matter. This decision will also require Maxus to reimburse Occidental for past costs on these matters. 
Maxus believes that its current reserves are adequate for these past costs. Maxus is currently evaluating the decision of the Court of Appeals. 
As of December 31, 2007, YPF Holdings Inc. has reserved 46 in respect to this matter. 

In  March  2005,  Maxus  agreed  to  defend  Occidental,  as  successor  to  Chemicals,  in  respect  of  an  action  seeking  the  contribution  of  costs 
incurred  in  connection  with  the  remediation  of  the  Turtle  Bayou  waste  disposal  site  in  Liberty  County,  Texas.  The  plaintiffs  alleged  that 
certain wastes attributable to Chemicals found their way to the Turtle Bayou site. Trial for this matter was bifurcated, and in the liability phase 
Occidental  and  other  parties  were  found  severally,  and  not  jointly,  liable  for  waste  products  disposed  of  at  this  site.  Trial  in  the  allocation 
phase of this matter was completed in the second quarter of 2007, and the court has entered a decision setting Occidental’s liability at 18.73% 
of those costs incurred by one of the plaintiffs. Occidental’s motion for reconsideration of a portion of this decision has been filed with the 
court, and the parties are awaiting the court’s decision on this and other post-judgment motions. As of December 31, 2007, YPF Holdings Inc. 
has reserved 12 in respect of this matter. 

In 2005, Skidmore Energy Company and others (“Skidmore”) have sued Maxus (U.S.) Exploration Company (“Maxus US”), a subsidiary of 
YPF Holdings Inc., in state court in Texas. Skidmore claims it was entitled to an assignment of approximately five oil and gas leases in the US 
Gulf  of  Mexico.  Maxus  US  denies  Skidmore’s  claims.  Maxus  US  and  Skidmore  have  entered  into  an  agreement  to  submit  this  matter  to 
binding  arbitration;  the  arbitration  hearing  was  held  from  October  29,  2007,  to  November  1,  2007,  with  briefs  submitted  to  the  arbitration 
panel on November 6, 2007. The decision of the arbitration panel, holding that Skidmore should take nothing, was rendered on November 29, 
2007. 

YPF Holdings Inc., including its subsidiaries, is a party to various other lawsuits, the outcomes of which are not expected to have a material 
adverse effect on the Company’s financial condition. 

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-  EDF  International  S.A.  (“EDF”):  EDF  had  initiated  an  international  arbitration  proceeding  under  the  Arbitration  Regulations  of  the
International  Chamber  of  Commerce  against  Endesa  Internacional  S.A.  and  YPF.  EDF  claimed  from  YPF  the  payment  of  US$  69  million,
which  were  subsequently  increased  to  US$  103  million  plus  interests  without  existing  real  arguments,  in  connection  with  the  sale  of
Electricidad Argentina S.A., parent company of Edenor S.A. EDF claimed an adjustment in the purchase price it paid arguing that under the
stock purchase agreement, the price it paid would be reviewed if changes in the exchange rate of Argentine peso occurred prior to December
31, 2001. EDF considered that this had happened. On October 22, 2007, the Arbitral Court issued an arbitral final award in which EDF’s claim 
and  the  defendants’  counterclaim  are  partially  accepted.  Consequently,  the  arbitral  final  award  imposed  on  YPF  the  payment  of  US$  28.9
million plus interests. The Company and EDF are both currently challenging the arbitral decision.

Additionally, the Company’s Management, in consultation with its external counsels, believes that the following contingencies and claims, individually 
significant, have a reasonably possible outcome: 

-  Availability of foreign currency deriving from exports: Decree No. 1,589/1989 of the Federal Executive provides that, producers enjoying free
availability of crude oil, natural gas and/or liquefied gas under Law No. 17,319 and its supplemented Decrees and producers that may agree so
in  the  future  will  have  free  availability  of  the  percentage  of  foreign  currency  coming  from  the  exports  of  crude  oil,  petroleum  derivatives,
natural gas and/or liquefied gas of free availability established in biddings and/or renegotiations, or agreed-upon in the respective contracts. In 
no cases will the maximum freely available percentage be allowed to exceed 70% of each transaction.

During year 2002, several government organizations considered that free availability of foreign currency provided by Decree No. 1,589/1989 
was implicitly abolished by Decree No. 1,606/2001. 

On December 31, 2002, Decree No. 2,703/2002 was enforced, ratifying such date the 70% limit as the maximum freely available percentage of 
foreign currency deriving from the exports of crude oil and petroleum derivatives, without providing a conclusion in regards to the exports 
performed during the year 2002, after the issuance of Decree No. 1,606/2001. 

The  Central  Bank  has  indicted  YPF  on  charges  allegedly  related  to  certain  exports  performed  during  2002,  once  the  executive  order 
1,606/2001  was  no  longer  in  force  and  before  the  executive  order  2,703/2002  came  into  effect.  Therefore,  YPF  will  file  an  answer  to  the 
charges and will offer evidence in this regard. In case YPF is indicted on charges involving other exports during the said period, YPF has the 
right to challenge the decision as well as to request the issuance of precautionary measures. 

There is a recently confirmed sentence, connected with proceeding to another hydrocarbon exporter, where the claim was the same and the 
company  and  its  directors  were  acquitted  of  all  charges  because  it  was  considered  that  the  company  was  exempt  from  the  liquidation  and 
negotiation of the 70% of the foreign currency deriving from the hydrocarbon exports. 

-  Asociación Superficiarios de la Patagonia (“ASSUPA”): In August 2003, ASSUPA sued 18 companies operating exploitation concessions and
exploration permits in the Neuquén Basin, YPF being one of them, claiming the remediation of the general environmental damage purportedly
caused in the execution of such activities, and subsidiary constitution of an environmental restoration fund and the implementation of measures
to  prevent  environmental  damages  in  the  future.  The  plaintiff  requested  that  the  National  Government,  the  Federal  Environmental  Council
(“Consejo Federal de Medio Ambiente”), the provinces of Buenos Aires, La Pampa, Neuquén, Río Negro and Mendoza and the Ombudsman
of  the  Nation  be  summoned.  It  requested,  as  a  preliminary  injunction,  that  the  defendants  refrain  from  carrying  out  activities  affecting  the
environment. Both the Ombudsman’s summon as well as the requested preliminary injunction were rejected by the Supreme Court of Justice
of Argentina. YPF has answered the demand and has required the summon of the National Government, due to it’s obligation to indemnify 
YPF for events and claims previous to January 1, 1991, according to Law No. 22,145 and Decree No. 546/1993. 

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-   Environmental claims in Dock Sud and Quilmes: 

Dock  sud:  A  group  of  neighbours  of  Dock  Sud,  Province  of  Buenos  Aires,  have  sued  44  companies,  among  which  YPF  is  included,  the 
National Government, the Province of Buenos Aires, the City of Buenos Aires and 14 municipalities, before the Supreme Court of Justice of 
Argentina, seeking the remediation and the indemnification of the environmental collective damage produced in the basin of the Matanza and 
Riachuelo rivers. Additionally, another group of neighbours of the Dock Sud area, have filed two other environmental lawsuits, one of them 
has not been notified to YPF, claiming several companies located in that area, among which YPF is included, the Province of Buenos Aires 
and several municipalities, for the remediation and the indemnification of the environmental collective damage of the Dock Sud area and for 
the  individual  damage  they  claim  to  have  suffered.  YPF  has  the  right  of  indemnity  by  the  Argentine  Government  for  events  and  claims 
previous to January 1, 1991, according to Law No. 22,145 and Decree No. 546/1993. 

Quilmes:  Citizens  which  allege  that  are  residents  living  near  Quilmes,  province  of  Buenos  Aires,  have  filed  a  lawsuit  in  which  they  have 
requested remediation of environmental damages and also the payment of 46 as a compensation for supposedly personal damages. They base 
their claim mainly on a fuel leak in a poliduct running from La Plata to Dock Sud, currently operated by YPF, which occurred in 1988 as a 
result of an illicit detected at that time, being at that moment YPF a state-owned company. Fuel would have emerged and become perceptible 
in  November  2002,  which  resulted  in  remediation  which  is  being  performed  by  YPF  in  the  affected  area,  supervised  by  the  environmental 
authority of the province of Buenos Aires. YPF has requested suspension of the term to respond to the lawsuit, until the document filed by the 
plaintiffs  is obtained.  YPF  has also notified  the  Argentine  Government  that  it  will receive a  citation,  due  to  its  obligation  to  indemnify  the 
Company  against  any  liability  according  to  Law  No.  24,145,  prior  to  requesting  its  citation  before  the  Court  upon  YPF’s  response  to  the 
complaint.  In  addition,  a  group  of  neighbors  brought  out-of-court  claims  against  us  and  some  others  filed  similar  claims  amounting  Ps.  4 
million. 

-  National  Antitrust  Protection  Board:  On  November  17,  2003,  Antitrust  Board  requested  explanations,  within  the  framework  of  an  official
investigation pursuant to Art. 29 of the Antitrust Act, from a group of almost thirty natural gas production companies, among them YPF, with
respect  to  the  following  items:  (i)  the  inclusion  of  clauses  purportedly  restraining  trade  in  natural  gas  purchase/sale  contracts  and  (ii)  gas
imports from Bolivia, in particular (a) old expired contracts signed by YPF, when it was state-owned, and YPFB (the Bolivian state-owned oil 
company), under which YPF allegedly sold Bolivian gas in Argentina at prices below the purchase price; and (b) the unsuccessful attempts in
2001  by  Duke  and  Distribuidora  de  Gas  del  Centro  to  import  gas  into  Argentina  from  Bolivia.  On  January  12,  2004,  YPF  submitted
explanations in accordance with Art. 29 of the Antitrust Act, contending that no antitrust violations had been committed and that there had
been no price discrimination between natural gas sales in the Argentine market and the export market. On January 20, 2006, YPF received a
notification of resolution dated December 2, 2005, whereby the AntitrustBoard (i) rejected the “non bis in idem” petition filed by YPF, on the 
grounds that ENARGAS was not empowered to resolve the issue when ENARGAS Resolution No. 1,289 was enacted; and (ii) ordered that the
preliminary opening of the proceedings be undertaken pursuant to the provisions of Section 30 of Act 25,156. On January 15, 2007, Antitrust
Board charged YPF and eight other producers with violations of Act 25,156. YPF has contested the complaint on the basis that no violation of
the Act took place and that the charges are barred by the applicable statute of limitations, and has presented evidence in support of its position.
On June 22, 2007, YPF presented to the Antitrust Board, without acknowledging any conduct in violation of the Antitrust Act, a commitment
consistent with Article 36 of the Antitrust Act, requiring to the Antitrust Board to approve the commitment, to suspend the investigation and to
file the proceedings. 

F-36

  
  
  
  
  
  
  
The Antitrust Board has started proceedings to investigate YPF for including a clause in bulk LPG (Liquid Petroleum Gas) supply contracts 
that it believes prevents the buyer from reselling the product to a third party and therefore restricts competition in a manner detrimental to the 
general  economic  interest.  YPF  has  asserted  that  the  contracts  do  not  contain  a  prohibition  against  resale  to  third  parties  and  has  offered 
evidence in support of its position. On April 12, 2007, YPF presented to the Antitrust Board, without acknowledging any conduct in violation 
of the Antitrust Act, a commitment consistent with Article 36 of the Antitrust Act, in which it commits, among other things, to refrain from 
including a clause with the destiny of the product in future bulk LPG supply contracts. 

-  Other  environmental  claims  in  La  Plata:  On  June  6,  2007,  YPF  was  served  with  a  new  complaint  in  which  9  residents  of  the  vicinity  of
Refineria  La  Plata  request  i)  the  cease  of  contamination  and  other  harms  they  claim  are  attributable  to  the  refinery;  ii)  the  clean-up  of  the 
adjacent  channels,  Río  Santiago  and  Río  de  la  Plata  (soil,  water  and  acquiferous)  or,  if  clean-up  is  impossible,  indemnification  for
environmental  and  personal  damages.  The  plaintiff  has  quantified  damages  as  51,  or  an  amount  to  be  determined  from  evidence  produced
during the proceeding. YPF believes that most damages that are alleged by the plaintiff, might be attributable to events that occurred prior to
YPF's privatization and would therefore be covered to that extent by the indemnity granted by the Argentine Government in accordance with
the Privatization Law of YPF. Notwithstanding the foresaid, the possibility of YPF being asked to afford these liabilities is not discarded, in
which  case  the  Argentine  State  must  be  asked  to  reimburse  the  remediation  expenses  for  liabilities  existing  prior  to  January  1,  1991.  In
addition, the claim partially overlaps with the request made by a group of neighbours of the La Plata Refinery on June 29, 1999, mentioned in
“La  Plata  environmental  claims”.  Accordingly,  YPF  considers  that  the  cases  should  be  partially  consolidated  to  the  extent  that  the  claims
overlap. Regarding claims not consolidated, for the time being information and documents in order to answer the claim are being collected,
and  it  is not possible to  reasonably estimate  the  outcome,  as  long as, if applicable,  estimate the corresponding  legal  fees and  expenses that
might result. The contamination that may exist could derive from countless sources, including from disposal of waste over many years by other
industrial facilities and ships. 

Additionally,  YPF  is  aware  of  an  action  in  which  it  has  not  yet  been  served,  in  which  the  plaintiff  requests  the  clean-up  of  the  channels 
adjacent  to  the  La  Plata  Refinery,  Río  Santiago,  and  other  sectors  near  the  coast  line,  and,  if  such  remediation  is  not  possible,  an 
indemnification  of  500  (approximately  US$  161  million)  or  an  amount  to  be  determined  from  evidence  produced  in  discovery.  The  claim 
partially overlaps with the requests made by a group of neighbours of the La Plata Refinery on June 29, 1999, previously mentioned in “La 
Plata  environmental  claims”,  and  with  the  complaint  served  on  June  6,  2007,  mentioned  in  the  previous  paragraph.  Accordingly,  YPF 
considers that if it is served in this proceeding or any other proceeding related to the same subject matters, the cases should be consolidated to 
the  extent  that  the  claims  overlap.  With  respect  to  claims  not  consolidated,  for  the  time  being,  it  is  not  possible  to  reasonably  estimate  the 
monetary outcome, as long as, if applicable, estimate the corresponding legal fees and expenses that might result. Additionally, YPF believes 
that most damages that would be alleged by the plaintiff, if proven, may be attributable to events that occurred prior to YPF's privatization and 
would therefore be the responsibility of the Argentine Government in accordance with the Privatization Law concerning YPF. 

-  Other claims related to the domestic natural gas market: Mega has claimed YPF for cutbacks in natural gas supply pursuant to their respective
sales contract.  YPF affirmed  that  the  deliveries  of natural  gas  to  Mega  were  affected  by  the  interference  of  the  Government. Besides,  YPF
wouldn’t have any responsibility based on the events of force majeure, fortuitous case and frustration of the contractual purpose. Despite YPF
has material arguments of defense, taking into account the characteristics of the claims, these have been considered as possible contingences.

-  Additionally,  the  Company  has  received  other  labor,  civil  and  commercial  claims  and  several  claims  from  the  AFIP  and  from  several
provincial and municipal fiscal authorities, which have not been reserved since Management, based on the evidence available to date and upon
the opinion of its external counsels, has considered them to be reasonably possible contingencies.

F-37

  
  
  
  
  
  
  
  
b)    Environmental liabilities: 

The Company  is subject to various laws and regulations relating to the protection of the environment. These laws and regulations may, among other 
things, impose liability on companies for the cost of pollution clean-up and environmental damages resulting from operations. Management believes that 
the Company's operations are in substantial compliance with the laws and regulations currently in force relating to the protection of the environment, as 
such laws have historically been interpreted and enforced. 

However, the Company is periodically conducting new studies to increase its knowledge concerning the environmental situation in certain geographic 
areas where the Company operates in order to establish their status, causes and solutions. Furthermore, based on the aging of the environmental issue, 
the  Company  analyzes  the  possible  responsibility  of  Argentine  Government,  in  accordance  with  the  contingencies  assumed  by  the  Argentine 
Government  for  liabilities  existing  prior  December  31,  1990.  Until  these  studies  are  completed  and  evaluated,  the  Company  cannot  estimate  what 
additional costs, if any, will be required. However, it is possible that other works, including provisional remedial measures, may be required. 

In addition to the hydrocarbon wells abandonment legal obligations for 2,711 as of December 31, 2007, the Company has reserved 303 corresponding to 
environmental remediations, which evaluations and/or remediation works are probable, significant and can also be reasonably estimated, based on the 
Company's existing remediation program. Future legislative and technological changes may cause a re-evaluation of the estimates. The Company cannot 
predict what environmental legislation or regulation will be enacted in the future or how future laws or regulations will be administered. In the long-
term, this potential changes and ongoing studies, could materially affect future results of operations. 

c)     Other matters: 

-  Contractual  commitments: In  June  1998,  YPF  has  received  an  advanced  payment  for  a  crude  oil  future  delivery  commitment  for
approximately US$ 315 million. Under the terms of this agreement, the Company has agreed to sell and deliver approximately 23.9 million
crude oil barrels during the term of ten years. To satisfy the contract deliveries, YPF may deliver crude oil from different sources, including its
own  produced  crude  oil  and  crude  oil  acquired  from  third  parties.  This  payment  has  been  classified  as  “Net  advances  from  crude  oil
purchasers” on the balance sheet and is being reduced as crude oil is delivered to the purchaser under the term of the contract. As of December
31, 2007, approximately 1 million crude oil barrels are pending of delivery.

Additionally, the Company has signed other contracts by means of which it has committed to buy certain products and services, and to sell 
natural gas, liquefied petroleum gas and other products. Some of the mentioned contracts include penalty clauses that stipulate compensations 
for  a  breach  of  the  obligation  to  receive,  deliver  or  transport  the  product  object  of  the  contract.  In  particular,  YPF  has  renegotiated  certain 
natural gas export contracts, and has agreed certain limited compensations in case of any delivery interruption or suspension, for any reason, 
except for physical force majeure event. 

F-38

  
  
  
  
  
  
  
  
  
  
  
On  June  14,  2007,  Resolution  No.  599/2007  of  the  Secretariat  of  Energy  was  published  (the  “Resolution”).  This  Resolution  approved  an 
agreement  with  natural  gas  producers  regarding  the  natural  gas  supply  to  the  domestic  market  during  the  period  2007  through  2011  (the 
“Agreement  2007-2011”),  giving  such  producers  a  five  business-day  term  to  enter  into  the  Agreement  2007-2011.  The  purpose  of  this 
Agreement 2007-2011 is to guarantee the normal supply of the natural gas domestic market during the period 2007 through 2011, considering 
the domestic market demand registered during 2006 plus the growth of residential and small commercial customers consumption (the “Priority 
Demand”).  According  to  the  Resolution,  the  producers  that  have  signed  the  Agreement  2007-2011  commit  to  supply  a  part  of  the  Priority 
Demand according to certain percentage determined for each producer based upon its share of production for the 36 months period prior to 
April 2004. In case of shortage to supply Priority Demand, natural gas exports of producers that did not sign the Agreement 2007-2011 will be 
the first to be called upon in order to satisfy such mentioned shortage. The Agreement 2007-2011 also establishes terms of effectiveness and 
pricing  provisions  for  the  Priority  Demand  consumption.  Considering  that  the  Resolution  anticipates  the  continuity  of  the  regulatory 
mechanisms that affect the exports, YPF has appealed the Resolution and has expressly stated that the execution of the Agreement 2007-2011 
does not mean any recognition by YPF of the validity of that Resolution. On June 22, 2007, the National Direction of Hydrocarbons notified 
that the Agreement 2007-2011 reached the sufficient level of subscription and that it is currently in an implementation stage. 

-   Regulatory requirements: the Company is subject to certain regulations that require to satisfy the hydrocarbon market domestic demand. In
October 11, 2006, Domestic Trade Secretary issued Resolution No. 25/2006 which requires refiners and/or wholesale and/or retail sellers to
meet domestic market diesel demand. The resolution requires, at least, to supply volumes equivalent to those of previous year corresponding
month, plus the positive correlation between the rise in diesel demand and the rise of the Gross Domestic Product, accrued from the reference
month. The mentioned commercialization should be performed with no distortion nor damage to the diesel market normal operation.

In connection with certain natural gas export contracts from the Noroeste basin in Argentina, YPF presented to the Secretariat of Energy the 
accreditation of the existence of natural gas reserves of that basin in adherence to export permits. If The Secretariat of Energy considers that 
the natural gas reserves are insufficient, it could resolve the partial or total suspension of one or several export permits. Through SE Note No. 
1,009/2006, the Secretariat of Energy limited the exportable volumes of natural gas authorized by the SE Resolution No. 167/1997 in a 20% 
(thus, 80% of the authorized exportable volumes remain outstanding) by the SE Note N° 1,009/2006. All of this is connected with the export 
authorization gave by the SE Resolution N° 167/1997. 

During 2005, the Secretariat of Energy by means of Resolution No. 785/2005, created the National Program of Hydrocarbons Warehousing 
Aerial  Tank  Loss  Control,  measure  aimed  at  reducing  and  correcting  environmental  pollution  caused  by  hydrocarbons  warehousing-aerial 
tanks. The Company has begun to develop and implement a technical and environmental audit plan as required by the resolution. 

-   Operating leases: As of December 31, 2007, the main lease contracts correspond to the rental of oil and gas production equipment, natural gas
compression equipment and real estate for service stations. Charges recognized under these contracts for the years ended December 31, 2007,
2006 and 2005, amounted to 396, 323 and 272, respectively.

As of December 31, 2007, estimated future payments related to these contracts are as follows: 

Within 1 year    

From 1 to 2 
years

From 2 to 3 
years

From 3 to 4 
years

From 4 to 5 
years 

Estimated future payments 

228 

211

186

156

115 

   More than 5 

years

177

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-  Agreement with the Federal Government and the Province of Neuquén: On December 28, 2000, through Decree No. 1,252/2000, the Argentine 
Federal Executive Branch (the “Federal Executive”) extended for an additional term of 10 years, until November 2027, the concession for the
exploitation of Loma La Lata - Sierra Barrosa area granted to YPF. The extension was granted under the terms and conditions of the Extension
Agreement executed between the Federal Government, the Province of Neuquén and YPF on December 5, 2000. Under this agreement, YPF
paid US$ 300 million to the Federal Government for the extension of the concession mentioned above, which were recorded in fixed assets
and committed among other things to define an investment program of US$ 8,000 million in the Province of Neuquén from 2000 to 2017 and
to  pay  to  the  Province  of  Neuquén  5%  of  the  net  cash  flows  arising  out  of  the  concession  during  each  year  of  the  extension  term.  The
previously  mentioned  commitments  have  been  affected  by  the  changes  in  economic  rules  established  by  Public  Emergency  and  Exchange
System Reform Law No. 25,561. 

d)    Changes in Argentine economic rules: 

During year 2002, a deep change was implemented in the economic model of the country to overcome the economic crisis in the medium-term. 
Therefore, the Argentine Federal Government abandoned the parity between the Argentine peso and the US dollar, in place since March 1991, and 
adopted  a  set  of  economic,  monetary,  financial,  fiscal  and  exchange  measures.  These  financial  statements  include  the  effects  derived  from  the 
economic  policies  known  to  the  release  date  thereof.  The  effects  of  any  additional  measures  to  be  implemented  by  the  Argentine  Federal 
Government will be recognized in the financial statements once Management becomes aware of their existence. 

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11.  RESTRICTIONS ON UNAPPROPRIATED RETAINED EARNINGS

In accordance with the provisions of Law No. 19,550, 5% of net income for each fiscal year is to be appropriated to the legal reserve until such 
reserve  reaches  20%  of  the  Company's  capital  (subscribed  capital  plus  adjustment  to  contributions).  Accordingly,  the  unappropriated  retained 
earnings as of December 31, 2007, are restricted in 204. 

On February 6, 2008, the Board of Directors approved a dividend of 10.76 Argentine pesos per share, paid on February 29, 2008, from the Reserve 
for Future Dividends approved by the Ordinary Shareholders’ Metting of April 13, 2007. 

Under  Law  No.  25,063,  dividends  distributed,  either  in  cash  or  in  kind,  in  excess  of  accumulated  taxable  income  as  of  the  end  of  the  year 
immediately preceding the dividend payment or distribution date, shall be subject to a 35% income tax withholding as a sole and final payment, 
except for those distributed to shareholders resident in countries benefited from conventions for the avoidance of double taxation, which will be 
subject to a minor tax rate. 

12.  MAIN CHANGES IN COMPANIES COMPRISING THE YPF GROUP 

During the year ended December 31, 2007: 

•  YPF acquired an additional 18% interest in Oleoducto Trasandino (Argentina) S.A., a 18% interest in Oleoducto Trasandino (Chile) S.A. and a

18% interest in A&C Pipeline Holding Company, for an amount of US$ 5.3 million.

•  YPF sold its interest in Petróleos Trasandinos S.A., for an amount of US$ 2 million, recording a gain of 5. 

During the year ended December 31, 2006: 

•  YPF International S.A., controlled by YPF, sold for an amount of US$ 10.6 million (approximately 31), its interest in Greenstone Assurance

Ltd., recording a gain of 11. 

During the year ended December 31, 2005: 

•  YPF sold, for an amount of US$ 97.5 million, its interest in PBBPolisur S.A., recording a net gain of 75. 

•  YPF sold its interest in Petroken, for an amount of US$ 58 million (equivalent to its carrying amount).

•  YPF transfered its interest in Gas Argentino S.A. to YPF Inversora Energética S.A., company wholly controlled by YPF. 

13.  SUMMARY  OF  SIGNIFICANT  DIFFERENCES  BETWEEN  ACCOUNTING  PRINCIPLES  FOLLOWED  BY  THE  COMPANY  AND

UNITED STATES GENERALLY ACCEPTED ACCOUNTING PRINCIPLES

The consolidated financial statements have been prepared in accordance with Argentine GAAP, which differs in certain respects from generally accepted 
accounting principles in the United States of America (“U.S. GAAP”). 

The differences between Argentine GAAP and U.S. GAAP are reflected in the amounts provided in Notes 14 and 15 and principally relate to the items 
discussed in the following paragraphs: 

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a.    Functional and reporting currency 

Under  Argentine  GAAP,  financial  statements  are  presented  in  constant  Argentine  pesos  (“reporting  currency”),  as  mentioned  in  Note  1.  Foreign 
currency  transactions  are  recorded  in  Argentine  pesos  by  applying  to  the  foreign  currency  amount  the  exchange  rate  between  the  reporting  and  the 
foreign currency at the date of the transaction. Exchange rate differences arising on monetary items in foreign currency are recognized in the income 
statement of each year. 

Under U.S. GAAP, a definition of the functional currency is required, which may differ from the reporting currency. Management has determined for 
YPF and certain of its subsidiaries and investees the U.S. dollar as its functional currency in accordance with the Statement of Financial Accounting 
Standards (“SFAS”) No. 52, “Foreign Currency translation” (“SFAS No. 52”). Therefore, the Company has remeasured into U.S. dollars its financial 
statements and the financial statements of the mentioned subsidiaries and investees as of December 31, 2007, 2006 and 2005, prepared in accordance 
with Argentine GAAP by applying the procedures specified in SFAS No. 52. The objective of the remeasurement process is to produce the same results 
that  would  have  been  reported  if  the  accounting  records  had  been  kept  in  the  functional  currency.  Accordingly,  monetary  assets  and  liabilities  are 
remeasured at the balance sheet date (current) exchange rate. Amounts carried at prices in past transactions are remeasured at the exchange rates in effect 
when the transactions occurred. Revenues and expenses are remeasured on a monthly basis at the average rates of exchange in effect during the period, 
except  for  consumption  of  nonmonetary  assets,  which  are  remeasured  at  the  rates  of  exchange  in  effect  when  the  respective  assets  were  acquired. 
Translation gains and losses on monetary assets and liabilities arising from the remeasurement are included in the determination of net income (loss) in 
the  period  such  gains  and  losses  arise.  For  certain  YPF’s  subsidiary  and  investees,  Management  has  determined  the  Argentine  peso  as  its  functional 
currency. Translation adjustments resulting from the process of translating the financial statements of the mentioned subsidiary and investees into U.S. 
dollars are not included in determining net income and are reported in other comprehensive income (“OCI”) as a component of shareholders’ equity. 

The  amounts  obtained  from  the  process  referred  to  above  are  translated  into  Argentine  pesos  following  the  provisions  of  SFAS  No.  52.  Assets  and 
liabilities were translated at the current selling exchange rate of Argentine pesos 3.15, 3.06 and 3.03 to US$ 1, as of December 31, 2007, 2006 and 2005, 
respectively.  Revenues,  expenses,  gains  and  losses  reported  in  the  income  statement  are  translated  at  the  exchange  rate  existing  at  the  time  of  each 
transaction or, if appropriate, at the weighted average of the exchange rates during the period. Translation effects of exchange rate changes are included 
in OCI as a component of shareholders’ equity. 

b.    Proportional consolidation 

As  discussed  in  Note  1,  YPF  has  proportionally  consolidated,  net  of  intercompany  transactions,  assets,  liabilities,  net  sales,  cost  and  expenses  of 
investees  in  which  joint  control  is  held.  Under  U.S.  GAAP  these  investees  are  accounted  for  by  the  equity  method.  The  mentioned  proportional 
consolidation generated under Argentine GAAP an increase of 486, 446 and 381 in total assets and total liabilities as of December 31, 2007, 2006 and 
2005, respectively, and an increase of 1,350, 1,451 and 1,216 in net sales and 690, 774 and 681 in operating income for the years ended December 31, 
2007, 2006 and 2005, respectively. 

c.    Valuation of inventories 

As described in Note 2.b, the Company values its inventories of refined products for sale, products in process of refining and separation, crude oil and 
natural gas at replacement cost. Under U.S. GAAP, these inventories should be valued at the lower of cost or market, which is defined as replacement 
cost, provided that it does not exceed net realizable value or is not less than net realizable value reduced by a normal profit margin. As the turnover ratio 
of inventories is high, there have been no significant differences between inventories valued at replacement cost and at historical cost using first in first 
out (“FIFO”) method for the years presented. 

d.    Impairment of long-lived assets 

Under  Argentine  GAAP,  in  order  to  perform  the  recoverability  test,  long-lived  assets  are  grouped  with  other  assets  at  business  segment  level.  With 
respect to long-lived assets that were held as pending for sale or disposal, the Company’s policy is to record these assets at amounts that did not exceed 
net realizable value. 

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Under U.S. GAAP, for proved oil and gas properties, the Company performs the impairment test on an individual field basis. Other long-lived assets are 
aggregated so that the discrete cash flows produced by each group of assets may be separately analyzed. Each asset is tested following the guidelines of 
SFAS  No. 144,  “Accounting  for  the  Impairment  of  Long-Lived  Assets”,  by  comparing  the  net  book  value  of  such  an  asset  with  the  expected 
undiscounted cash flows. Impairment losses are measured as the amount by which the carrying amount of the assets exceeds the fair value of the assets. 
When market values are not available, the Company estimates them using the expected future cash flows discounted at a rate commensurate with the 
risks associated with the recovery of the assets. 

Impairment  charges  under  U.S.  GAAP  amounted  to  111,  80  and  2  for  the  years  ended  December  31,  2007,  2006  and  2005,  respectively,  and  were 
included as operating income from continuing operations. The impairment recorded in years ended December 31, 2007, 2006 and 2005 was mainly the 
result of a decrease in oil and gas reserves affecting certain long-lived assets of the YPF’s Exploration and Production Business Segment. 

The reversal and impairment charge of 69 and (69)  under Argentine GAAP for the years ended December 31, 2007 and 2006, respectively, as discussed 
in Note 2.c, were eliminated for U.S. GAAP purposes. 

The adjusted basis after impairment results in lower depreciation under U.S. GAAP of 132, 137 and 170 for the years ended December 31, 2007, 2006 
and 2005, respectively. 

e.    Start-up and organization costs 

Under  Argentine  GAAP,  start-up  and  organization  costs  can  be  capitalized  subject  to  recoverability  through  future  revenues.  These  costs  were  fully 
amortized during 2006 based on a five-year estimated useful life. 

Under U.S. GAAP, start-up costs were expensed as incurred. 

f.    Reorganization of entities under common control 

Under Argentine GAAP, results on sales of noncurrent assets and the corresponding accounts receivable are recognized in the statement of income and 
the  balance  sheet,  respectively.  Under  U.S.  GAAP,  results  related  with  reorganization  of  entities  under  common  control  are  eliminated  and  the 
corresponding accounts receivable are considered as a capital (dividend) transaction. 

During  the  year ended  December 31, 2007,  the  Company  collected the  account  receivables  related  with the reorganization  of  entities  under  common 
control. Accordingly, no shareholders’ equity adjustment is required as of December 31, 2007. Net income reconciliation for the year ended December 
31, 2007, includes the elimination of interests accrued under Argentine GAAP in relation with the mentioned account receivables, which should not be 
recognized under U.S. GAAP. 

g.    Pension Plans 

As displayed in Note 2.f, YPF Holdings Inc. has non-contributory defined-benefit pension plans and postretirement and postemployment benefits. 

Under Argentine GAAP, the net liability for defined-benefits plans is the amount resulting from the sum of the present value of the obligations, net of 
the fair value of the plan assets and net of the unrecognized actuarial losses. These unrecognized actuarial losses are recorded in the statement of income 
during the expected average remaining working lives of the employees participating in the plans and the life expectancy of retired employees. 

Under  U.S.  GAAP  the  Company  adopted  SFAS  No.  158  “Employers’  Accounting  for  Defined  Benefit  Pension  and  Other  Postretirement  Plans-an 
amendment of FASB Statements No. 87, 88, 106, and 132 (R)” (“SFAS No. 158”). Under provisions of SFAS No. 158 the Company fully recognized the 
underfunded status of defined-benefit pension and postretirement plans as a liability in the financial statements reducing the Company’s shareholders’ 
equity  through  Accumulated  OCI  account.  Unrecognized  actuarial  losses  and  gains  are  recognized  in  the  statement  of  income  during  the  expected 
average remaining working lives of the employees participating in the plans and the life expectancy of retired employees. Considering the settlement 
agreement mentioned in Note 3.i, the estimated amounts that will be amortized from accumulated other comprehensive income for 2008 are 171. 

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h.    Accounting for asset retirement obligations 

SFAS  No. 143,  “Accounting  for  Asset  Retirement  Obligations”  (“SFAS  No.  143”),  addresses  financial  accounting  and  reporting  for  obligations 
associated with the retirement of tangible long-lived assets and the associated asset retirement cost. The standard applies to legal obligations associated 
with the retirement of long-lived assets that result from the acquisition, construction, development and normal use of the asset. SFAS No. 143 requires 
that the fair value of a liability for an asset retirement obligation be recognized in the period in which it is incurred, if a reasonable estimate of fair value 
can be made. The asset retirement obligations liability is built up in cash flow layers, with each layer being discounted using the discount rate as of the 
date that the layer was created. Remeasurement of the entire obligation using current discount rates is not permitted. Each cash flow layer is added to the 
carrying amount of the associated asset. This additional carrying amount is then depreciated over the life of the asset. The liability is increased due to the 
passage of time based on the time value of money (“accretion expense”) until the obligation is settled. The activity with respect to retirement obligations 
under US GAAP is detailed in Note 15.c. 

Argentine GAAP is similar to SFAS No. 143, except for a change in the discount rate is treated as a change in estimates, so the entire liability must be 
recalculated using the current discount rate, being the change added or reduced from the related asset. 

i.    Consolidation of variable interest entities - Interpretation of ARB No. 51

Under Argentine GAAP consolidation is based on having the votes necessary to control corporate decisions (Note 1). FIN No. 46R, “Consolidation of 
Variable Interest Entities”, (“FIN 46R”), clarifies the application of Accounting Research Bulletin No. 51, Consolidated Financial Statements, to certain 
entities in which equity investors do not have the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to 
finance its activities without additional subordinated financial support from other parties. The interpretations explain how to identify variable interest 
entities  and  how  an  enterprise  assesses  its  interests  in  a  variable  interest  entity  to  decide  whether  to  consolidate  that  entity.  They  require  existing 
unconsolidated variable interest entities to be consolidated by their primary beneficiaries if the entities do not effectively disperse risks among parties 
involved. 

As  of  December  31,  2007,  YPF  has  operations  with  one  variable  interest  entity  (“VIE”)  which  has  been  created  in  order  to  structure  YPF’s  future 
deliveries of oil (“FOS transaction”). 

YPF entered into a forward oil sale agreement that calls for the future delivery of oil for the life of the contract. YPF was paid in advance for the future 
delivery of oil. The price of the oil to be delivered was calculated using various factors, including the expected future price and quality of the crude oil 
being delivered. The counterparty or assignee to the oil supply agreement is a VIE incorporated in the Cayman Islands, which finance itself through the 
issuance of notes. The oil to be delivered under the supply agreement is subsequently sold in the open market. 

YPF is exposed to any change in the price of the crude oil it will deliver in the future under the outstanding FOS transaction. YPF’s exposure derives 
from crude oil swap agreements under which YPF pays a fixed price with respect to the nominal amount of the crude oil sold, and receives the variable 
market price of such crude oil (Note 2.j). 

The effect before taxes of such consolidation was an increase in the “Loans” account of 68, 186 and 297, an increase of current assets of 24, 19, and 18, 
the elimination of “Net advances from crude oil purchasers” of 9, 103 and 196 and a decrease in shareholders’ equity of 35, 65 and 83 as of December 
31, 2007, 2006 and 2005, respectively. 

j.    Capitalization of financial expenses 

Under Argentine GAAP, for those assets that necessarily take a substantial period of time to get ready for its intended use, borrowing costs (including 
interest and exchange differences) should be capitalized. Accordingly, borrowing costs for those assets whose construction period exceeds one year have 
been capitalized, provided that such capitalization does not exceed the amount of financial expense recorded in that year. 

Under US GAAP, only interest expense on qualifying assets must be capitalized, regardless of the asset’s construction period. 

The effect on net income and shareholders’ equity as of December 31, 2007, 2006 and 2005 is included in “Capitalization of financial expenses” in the 
reconciliation in Note 14. 

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k.    Accounting treatment for retrospective premiums 

Up to the sale of its indirect subsidiary, Greenstone Assurance Limited, YPF was a member of Oil Insurance Limited (“OIL”). OIL is owned by and 
operated for its shareholders, all of whom are engaged in energy operations. 

Pursuant to OIL’s Rating and Premium Plan, there is a withdrawal premium (the “Avoided Premium Surcharge” or “APS”) to which insured members 
are liable under certain circumstances which include cancellation and non-renewal of the policy. The APS is calculated by OIL at its sole discretion, it is 
final  and  the  amount  shall  not  exceed  the  applicable  future  premiums  that  the  insured  would  have  paid  absent  such  cancellation  or  non-renewal,  in 
respect  of  losses  incurred  before  the  date  on  which  the  cancellation  or  non-renewal  takes  place.  Such  obligation,  in  substance,  is  similar  to  a 
retrospective premium to recover past losses which is paid in any case, either through future premium payments (if the member remains in the company) 
or as a one-time payment if the member withdraws from OIL. 

The effect on net income under US GAAP as of December 31, 2004 was recorded in the subsequent year for Argentine GAAP purposes. 

l.    SFAS Interpretation No. 48, “Accounting for uncertainty in income taxes – an interpretation of FASB Statement No. 109” (“FIN 48”)

FIN 48 defines the criteria an individual tax position must meet for any part of the benefit of such position to be recognized in the financial statements. 
FIN 48 establishes “a more-likely-than-not” recognition threshold that must be met before a tax benefit can be recognized in the financial statements. 
FIN  48  also  provides  guidance,  among  other  things,  on  the  measurement  of  the  income  tax  benefit  associated  with  uncertain  tax  positions,  de-
recognition, classification, interest and penalties and financial statement disclosures. 

The Company implemented FIN 48 in January, 2007. As it is defined in this interpretation, the Company has reassessed whether the “more-likely-than-
not” recognition threshold has been met before a tax benefit can be recognized and how much of a tax benefits to recognize in the financial statements. 
The adoption of FIN 48 did not have an impact on YPF’s financial position. There were no unrecognized tax benefits as of the date of adoption and as of 
December 31, 2007. 

Under Argentine tax regime, as of December 31, 2007, fiscal years 2001 through 2006 remain subject to examination by the Federal Administration of 
Public Revenues (“AFIP”). 

m.   SFAS No. 157, Fair Value Measurements 

In  September  2006,  the  FASB  issued  SFAS  No.  157,  “Fair  Value  Measurements”  (“SFAS  No.  157”),  which  clarifies  the  definition  of  fair  value, 
establishes guidelines for measuring fair value, and expands disclosures regarding fair value measurements.  SFAS No. 157 does not require any new 
fair value measurements and eliminates inconsistencies in guidance found in various prior accounting pronouncements.  SFAS No. 157 will be effective 
for the Company on January 1, 2008. The Company is currently evaluating the impact of adopting SFAS No. 157 but does not believe the adoption of 
SFAS 157 will have a material impact on its financial position results of operations and cash flows. 

n.    FSP FAS 157-1, “Application of FASB Statement No. 157 to FASB Statement No. 13 and Other Accounting Pronouncements That Address

Fair Value Measurements for Purposes of Lease Classification or Measurement under Statement 13”

This FASB Staff Position (“FSP”) was issued in February 2008, is effective upon the initial adoption of Statement 157 and amends SFAS No. 157, “Fair 
Value Measurements”, to exclude SFAS No. 13, “Accounting for Leases”, and other accounting pronouncements that address fair value measurements 
for purposes of lease classification or measurement under Statement 13. However, this scope exception does not apply to assets acquired and liabilities 
assumed in a business combination that are required to be measured at fair value under SFAS No. 141, “Business Combinations”, regardless of whether 
those assets and liabilities are related to leases. The Company does not anticipate that the adoption of this new statement at the required effective date 
will have a significant effect in its results of operations, financial position or cash flows. 

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o.    FSP No. FAS 157-2 “Effective Date of SFAS No. 157”

In December 2007, the FASB released a proposed FSP (FSP SFAS 157-2 – Effective Date of SFAS No. 157) which, if adopted, would delay the effective 
date of SFAS No. 157 until fiscal years beginning after November 15, 2008, and interim periods within those fiscal years, for all non-financial assets and 
nonfinancial liabilities, except those that are recognized or disclosed at fair value in the financial statements on a recurring basis (at least annually). The 
Company  does  not  anticipate  that  the  adoption  of  this  new  statement  at  the  required  effective  date  will  have  a  significant  effect  in  its  results  of 
operations, financial position or cash flows. 

p.    SFAS No. 159, The Fair Value Option for Financial Assets and Financial Liabilities

In February 2007, the FASB issued SFAS No. 159, “The Fair Value Option for Financial Assets and Financial Liabilities—Including an amendment of 
FASB Statement No. 115” (“SFAS No. 159”). SFAS No. 159 permits entities to choose to measure many financial instruments and certain other items at 
fair  value.  Unrealized  gains  and  losses  on  items  for  which  the  fair  value  option  has  been  elected  will  be  recognized  in  earnings  at  each  subsequent 
reporting  date.  SFAS  No. 159  is  effective  for  the  Company  on  January 1,  2008.  The  Company  is  evaluating  the  impact  that  the  adoption  of  SFAS 
No. 159 will have on the financial statements, but does not believe the adoption of SFAS No. 159 will have a material impact on its financial position 
results of operations and cash flows. 

q.    SFAS  No.141(R),  “Business  Combinations”  and  SFAS  No.  160,  “Noncontrolling  Interests  in  Consolidated  Financial  Statements  — an 

amendment of ARB No. 51” 

In December 2007, the FASB issued SFAS No. 141 (Revised 2007), “Business Combinations” (“SFAS No. 141(R)”) which requires the recognition of 
assets  acquired,  liabilities  assumed,  and  any  noncontrolling  interest  in  an  acquiree  at  the  acquisition  date  fair  value  with  limited  exceptions.  SFAS 
No. 141(R)  will  change  the  accounting  treatment  for  certain  specific  items  and  includes  a  substantial  number  of  new  disclosure  requirements.  SFAS 
No. 141(R) applies prospectively to business combinations for which the acquisition date is on or after the beginning of the first annual reporting period 
beginning on or after December 15, 2008. 

In  December 2007,  the  FASB  issued  SFAS  No. 160,  “Noncontrolling  Interests  in  Consolidated  Financial  Statements  —  an  Amendment  of  ARB 
No. 51”  (“SFAS  No.  160”),  which  establishes  new  accounting  and  reporting  standards  for  noncontrolling  interest  (minority  interest)  and  for  the 
deconsolidation  of  a  subsidiary.  SFAS  No. 160  also  includes  expanded  disclosure  requirements  regarding  the  interests  of  the  parent  and  its 
noncontrolling  interest. SFAS  No. 160  is  effective  for  fiscal  years,  and  interim  periods  within  those fiscal  years,  beginning  on  or  after  December 15, 
2008. 

r.    SFAS No. 161, Disclosures about Derivative Instruments and Hedging Activities

In March 2008 the FASB issued SFAS No. 161, “Disclosures about Derivative Instruments and Hedging Activities”. The new standard is intended to 
improve  financial  reporting  about  derivative  instruments  and  hedging  activities  by  requiring  enhanced  disclosures  to  enable  investors  to  better 
understand their effects on an entity’s financial position, financial performance, and cash flows. The new standard also improves transparency about the 
location and amounts of derivative instruments in an entity’s financial statements; how derivative instruments and related hedged items are accounted for 
under  SFAS 133;  and  how  derivative  instruments  and  related  hedged  items  affect  its  financial  position,  financial  performance,  and  cash  flows. This 
Statement  is  effective  for  financial  statements  issued  for  fiscal  years  and  interim  periods  beginning  after  November 15,  2008,  with  early  application 
encouraged. The Company does not anticipate that the adoption of this new statement at the required effective date will have a significant effect in its 
results of operations, financial position or cash flows. 

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14.  RECONCILIATION  OF  NET  INCOME  AND  SHAREHOLDERS'  EQUITY  TO  UNITED  STATES  GENERALLY  ACCEPTED

ACCOUNTING PRINCIPLES 

The following is a summary of the significant adjustments to net income for each of the years ended December 31, 2007, 2006 and 2005, and to 
shareholders’ equity as of December 31, 2007, 2006 and 2005, which would have been required if U.S. GAAP had been applied instead of Argentine 
GAAP in the consolidated financial statements. Amounts are expressed in millions of Argentine pesos. 

Net income according to Argentine GAAP 
Increase (decrease) due to: 
Elimination of the inflation adjustment into Argentine constant pesos
(Note 1 and 13.a) 
Remeasurement into functional currency and translation into reporting currency (Note 13.a)
Impairment of long-lived assets (Note 13.d) 
Start-up and organization costs amortization (Note 13.e) 
Reorganization of entities under common control - Interest from accounts receivable (Note 13.f)
Pension Plans (Note 13.g) 
Asset Retirement Obligations (Note 13.h) 
Consolidation of VIEs (Note 13.i) 
Capitalization of financial expenses (Note 13.j) 
Retrospective premiums (Note 13.k) 
Deferred income tax (1) 

Net income in accordance with U.S. GAAP 

Shareholders' equity according to Argentine GAAP 
Increase (decrease) due to: 
Elimination of the inflation adjustment into Argentine constant pesos
(Note 1 and 13.a) 
Remeasurement into functional currency and translation into
reporting currency (Note 13.a) 
Impairment of long-lived assets (Note 13.d) 
Start-up and organization costs (Note 13.e) 
Reorganization of entities under common control - Accounts receivable (Note 13.f)
Pension plans (Note 13.g) 
Asset Retirement Obligations (Note 13.h) 
Consolidation of VIEs (Note 13.i) 
Capitalization of financial expenses (Note 13.j) 
Deferred income tax (1) 

Shareholders' equity in accordance with U.S. GAAP

(1)    Corresponds to the effect of Deferred Income Tax, if applicable, to U.S. GAAP adjustments.

F-47

2007 

2006 

2005

4,086     

4,457

5,362

805     
(1,513)    
(48)    
-     
(15)    
(21)    
19     
24     
3     
-     
(15)    
3,325     

1,144
(2,065)
126
13
(65)
(19)
-
19
104
-
(47)  

3,667

1,048
(1,479)
168
10
(123)
(25)
(33)
26
102
122
(36)
5,142

26,060     

24,345

22,249

(4,203)    

(5,008)

(6,152)

7,723     
(554)    
-     
-     
(65)    
(17)    
(35)    
220     
(62)    
29,067     

8,333
(491)
-
(954)
(56)
(35)
(65)
211
(39)  

26,241

10,184
(611)
(13)
(1,417)
16
(34)
(83)
106
9 
24,254

  
  
  
 
 
  
  
  
  
   
  
     
      
 
  
      
      
 
The summarized balance sheets as of December 31, 2007, 2006 and 2005, and statements of income and cash flows for the years then ended, remeasured 
into U.S. dollar and translated into Argentine pesos under U.S. GAAP, after giving effect to the adjustments detailed above and the elimination of the 
proportional consolidation performed under Argentine GAAP, are presented only for the convenience of the readers and would be as follows: 

Summarized balance sheets 

Current assets 
Fixed assets 
Other noncurrent assets 
Total assets 

Current liabilities 
Noncurrent liabilities 
Shareholders' equity 

Total liabilities and shareholders' equity 

Summarized statements of income 

Net sales (1) 
Operating income (Note 15.a) 
Net income 
Earnings per share, basic and diluted 

(1)  Sales are disclosed net of fuel transfer tax, turnover tax and hydrocarbon export withholdings.

Summarized statements of cash flows 

Net cash flow provided by operating activities 
Net cash flow used in investing activities 
Net cash flow used in financing activities 

(Decrease) increase in cash and equivalents 

Cash and equivalents at the beginning of years 
Exchange differences from cash and equivalents 
Cash and equivalents at the end of years 

Cash and equivalents at the end of years are comprised as follows: 

Cash 
Cash equivalents(1) 

Cash and equivalents at the end of years(2) 

2007 

2006 

2005

10,695     
27,372     
2,679     
40,746     

5,719     
5,960     
29,067     
40,746     

10,325
24,193
2,528
37,046   

5,962
4,843
26,241   
37,046

7,338
23,952
3,458
34,748 

5,496
4,998
24,254 
34,748

2007 

2006 

2005

27,746     
5,176     
3,325     
8.45     

24,204

5,626   
3,667   
9.32

21,698
8,065 
5,142 
13.07

2007 

2006 

2005

7,926     
(6,112)    
(2,035)    
(221)    
821     
10     
610     

7,466
(5,063)
(1,955)

448   
371

2   
821   

8,594
(3,221)
(5,539)
(166)
534
3 
371 

2007 

2006 

2005

193     
417     

610     

111
710   

821

80
291 

371

(1)  Included in short-term investments in the consolidated balance sheets.
(2)  Cash and equivalents from jointly controlled companies which are proportionally consolidated for Argentine GAAP purposes are not included.

The principal transactions not affecting cash consisted in increases in assets related to revisions in hydrocarbon well abandonment costs for the years 
ended December 31, 2007, 2006 and 2005. 

F-48

 
  
 
 
 
 
 
 
 
  
  
   
  
     
 
  
      
 
   
  
     
 
 
   
  
     
 
 
 
  
   
  
     
 
15.  ADDITIONAL U.S. GAAP DISCLOSURES 

a)    Consolidated operating income 

Under  U.S.  GAAP,  costs  charged  to  income  for  environmental  remediation,  holding  gains  on  inventories,  impairment  of  long-lived  assets,  the 
elimination  of  operating  results  of  jointly  controlled  companies  proportionally  consolidated,  pending  lawsuits  and  other  claims  costs  and  other  items 
which are not individually significant, would have been deducted from or added to operating income. 

b)    Comprehensive income 

Net income under U.S. GAAP as determined in Note 14 is approximately the same as comprehensive income as defined by SFAS No. 130, “Reporting 
Comprehensive  Income” (“SFAS 130”)  for all  periods  presented,  except  for the effect  in  the  years  2007,  2006 and 2005 of the  following  items, that 
should be included in comprehensive income for U.S. GAAP purposes but are excluded from net income for U.S. GAAP purposes: 

Effect arising from the translation into reporting currency (1)
Pension plans (2) 

Comprehensive income at the end of years 

(1)     Has no tax effect. 
(2)     Valuation allowance has been recorded to offset the recognized income tax effect. 

c)    Assets retirement obligation 

2007 

2006 

2005

15,485     
(208)    
15,277     

14,582

(217)  

14,365

14,368
(167)
14,201

Under Argentine regulations, the Company has the obligation to incur costs related to the abandonment of hydrocarbon wells. The Company does not 
have assets legally restricted for purposes of settling the obligation. 

The  reconciliation  of  the  beginning  and  ending  aggregate  carrying  amount  of  assets  retirement  obligation,  translated  into  Argentine  pesos  at  the 
outstanding selling exchange rate at the end of each year and under US GAAP, is as follows: 

Aggregate assets retirement obligation, beginning of year 
Translation effect 
Revision in estimated cash flows 
Obligations incurred 
Accretion expense 
Obligations settled 
Aggregate assets retirement obligation, end of year 

d)    Contractual relationships with service stations 

2007 

2006 

2005

2,441     
83     
314     
67     
197     
(66)    
3,036     

1,457
12
840
55
117
(40)
2,441

648
43
693
46
49
(22)
1,457

Included below is a summarized discussion of the activities and the corresponding accounting treatment provided to the service stations based on the 
existing  differences  in  ownership  or  levels  of  control.  No  differences  have  been  identified  in  this  respect  between  the  accounting  treatment  provided 
under Argentine GAAP and U.S. GAAP. 

Controlled stations: Includes service stations directly managed by YPF or its subsidiaries (company-owned, company-operated-“COCO” and dealer-
owned, company-operated-“DOCO”). In this case, YPF, as the manager of the point of sale, is charged with the marketing of the oil products, the non-
oil  products  (sold  in  the  shops)  and  any  ancillary  services  provided  at  the  point  of  sale  (car  wash,  cleaning,  etc.).  Accordingly,  product  sales  are 
accounted for when the risks and rewards of the property are transferred to the end-consumer. 

Branded stations: Includes dealer-owned, dealer-operated (“DODO”) service stations. These stations are owned by third parties with which YPF has 
signed a contract that entitles it (i) to become the exclusive supplier and (ii) to brand the service station with its corporate image. The average contract 
term is 8 years. 

F-49

  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
   
  
     
 
  
   
  
     
Typically, the owner of the service station markets the product by account of YPF on consignment basis (i.e. earning a fee). Accordingly, the Company 
records the revenue arising from  the sale  of the product less the corresponding marketing fee for the product sold when the risks and rewards of the 
product are transferred to the end-consumer. 

The Company signs exclusive distribution agreements with service stations to market YPF’s oil products for a specified period of time under its brand 
name. Upon signing of the contracts, the service stations agree to exclusively sell YPF’s gasoline and other products. YPF, provides a guaranteed loan to 
the service station’s owner to refurbishing and improvement of such service stations. The contracts are established for a defined period of time, and may 
be renewed beyond the initial term. Under Argentine and U.S. GAAP, YPF capitalizes such costs as Other receivables – Loans to clients. 

16.  OTHER CONSOLIDATED FINANCIAL STATEMENT INFORMATION

The following tables present additional consolidated financial statement disclosures required under Argentine GAAP. Certain information disclosed in 
these tables is not required as part of the basic financial statements under U.S. GAAP. 

a)    Fixed assets evolution. 

b)    Investments in shares and holdings in companies under significant influence and other companies.

c)    Allowances and reserves. 

d)    Cost of sales. 

e)    Foreign currency assets and liabilities. 

f)    Expenses incurred. 

F-50

 
  
 
 
  
  
 
  
  
  
  
  
  
 
  
a)      Fixed assets evolution 

Main account 

Land and buildings 
Mineral property, wells and related equipment 
Refinery equipment and petrochemical plants 
Transportation equipment 
Materials and equipment in warehouse 
Drilling and work in progress 
Exploratory drilling in progress 
Furniture, fixtures and installations 
Selling equipment 
Other property 

Total 2007 
Total 2006 
Total 2005 

2007
Cost

Amounts at 
beginning of 
year

Translation 
net effect (5)

Increases

Net decreases, 
transfers and 
reclassifications 

Amounts at 
end of year

2,326
42,534
8,650
1,850
611
3,569
135
556
1,341
367

61,939

61,812   

57,752   

-
9
-
-
-
(3)
3
-
-
1

10

2   

2   

-
82
108
-
1,028
4,815
145
6
-
32

6,216

5,932

4,459

(2)

(2)

(2)

65 
8,970 
469 
37 
(848)
(3,764)
(136)
60 
65 
(23)

(1)(6)

4,895

(5,807) (1)(6)
(401) (1)

2,391
51,595
9,227
1,887
791
4,617
147
622
1,406
377

73,060

61,939 

61,812 

Main account 

Accumulated 
at beginning 
of year 

Net decreases, 
transfers and 
reclassifications

Depreciation 
rate

Increases

Accumulated 
at end of 
year

Net book 
value 

Net book 
value

Net book
value

2007

Depreciation

2006

2005

Land and buildings 
Mineral property, wells and 
related equipment 
Refinery equipment and 
petrochemical plants 
Transportation equipment 
Materials and equipment in 

warehouse 

Drilling and work in progress 
Exploratory drilling in progress     
Furniture, fixtures and 

installations 
Selling equipment 
Other property 

Total 2007 
Total 2006 
Total 2005 

1,053     

(2)

2%(4)

29,496     

4,071

4 - 10%
4 - 5%

-
-
-

10%
10%
10%  

5,793     
1,273     

-     
-     
-     

479     
1,001     
282     

39,377     

39,803     

37,135     

(1)
(4)

-
-
-

1
(2)
- 
(1)(6)

4,063
(4,144) (1)(6)

(39) (1)

57

3,564

347
55

-
-
-

43
57
16   

1,108

37,131

6,139
1,324

-
-
-

523
1,056

298   

1,283 

1,273

1,265

(3)

14,464

(3)

13,038

(3)

13,553

3,088 
563 

791 
4,617 
147 

99 
350 
79 

2,857
577

611
3,569
135

77
340
85 

2,998
582

420
2,571
188

49
314
69 

4,139   

47,579   

25,481 

3,718

39,377

22,562

2,707   

39,803   

22,009 

(1)    Includes 118, 194 and 86 of net book value charged to fixed assets allowances for the years ended December 31, 2007, 2006 and 2005, respectively.

(2)    Includes 53, 930 and 737 corresponding to the future cost of hydrocarbon wells abandonment obligations for the years ended December 31, 2007, 2006 and 2005,

respectively. 

(3)    Includes 851, 1,052 and 1,255 of mineral property as of December 31, 2007, 2006 and 2005, respectively.

(4)    Depreciation has been calculated according to the unit of production method.

(5)    Includes the net effect of the exchange differences arising from the translation of net book values at beginning of the year of fixed assets in foreign companies.

(6)    Includes 5,291 of acquisition cost and 4,094 of accumulated depreciation corresponding to oil and gas exploration and producing areas to be  disposed by sale as of

December 31, 2006 (Note 2.c). 

F-51

  
  
 
 
 
  
  
  
  
  
  
  
  
  
  
  
 
  
 
 
 
  
   
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
   
   
 
   
  
 
 
 
  
 
   
 
   
 
   
 
 
   
 
 
  
   
     
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
   
 
  
 
   
  
 
  
   
  
   
   
 
  
 
  
   
  
 
b)     Investments in shares and holdings in companies under significant influence and other companies 

   Description of the Securities 

2007

   2006    2005   

Information of the Issuer

  Last Financial Statements 
Issued 

Name and Issuer    

Class    

Face 
Value    

Amount 

Book 
Value  

Cost (5)

Main Business

Registered 
Address

Date

Capital 
Stock   

Income 
(Loss)   

Equity  

Holding in 
Capital 
Stock

Book 
Value  

Book 
Value

Companies under 
significant 
influence: 
Oleoductos del 
Valle S.A. 

Terminales 
Marítimas 
Patagónicas S.A. 

Oiltanking 
Ebytem S.A. 

  Common   $   10  

    4,072,749  

  95(1)

  Common   $   10  

       476,034  

  44  

-  Oil transportation 
by pipeline 

-  Oil storage and 
shipment 

  Common   $   10  

        351,167  

  44(2)

    3  Hydrocarbon 

transportation and 
storage 

Gasoducto del 
Pacífico (Argentina) 
S.A. 

  Preferred    $     1  

    15,579,578  

  19  

   1  Gas transportation 
by pipeline 

  Common   $0.01   3,719,290,957  

    7(2)

Central Dock Sud 
S.A. 
Gas Argentino S.A.   Common   $     1  

  308,855,955   181  

Inversora  Dock  Sud 
S.A. 

  Common   $     1      103,497,738   114(2)

  46  Electric power 
generation and 
bulk marketing
338  Investment in 
Metrogas S.A. 

193  Investment and 
finance 

  Common   $     1  

  30,006,540   290  

  71  Exploration and 

 Florida 1, P. 10°, 
Buenos Aires, 
Argentina
 Av. Leandro N. 
Alem 1180, P.11°, 
Buenos Aires, 
Argentina
 Terminal 
Marítima Puerto 
Rosales – 
Provincia de 
Buenos Aires, 
Argentina
 Av. Leandro N. 
Alem 928, P. 7º, 
Buenos Aires, 
Argentina
 Reconquista 360, 
P. 6°, Buenos 
Aires, Argentina
 Gregorio Araoz 
de Lamadrid 
1360, Buenos 
Aires, Argentina
 Reconquista 360, 
P. 6°, Buenos 
Aires, Argentina
 Lima 339, Buenos 
Aires, Argentina 

 09/30/07  

110  

  8     311    37.00%  

101(1) 104(1)

 09/30/07  

  14  

15     133    33.15%  

  44  

  44  

 09/30/07  

  12  

10    

96    30.00%  

  43(2)

  38(2)

 09/30/07  

156  

30     191    10.00%  

 19  

 18  

 09/30/07  

468  

(55)   179   

  9.98% (5)

  11(2)

  17(2)

 09/30/07  

280  

  (6)   398    45.33% (6) 186  

126  

 09/30/07  

241  

(42)   179    42.86%  

129(2) 142(2)

 09/30/07  

  67  

62     643    45.00%  

281  

281  

exploitation of 
hydrocarbons and 
electric power 
generation, 
production and 
marketing

    3  Oil transportation 
by pipeline 

 Esmeralda 255, P. 
5°, Buenos Aires, 
Argentina

  Preferred    $     1  

  16,198,560  

  16  

 09/30/07  

  45  

1    

77    36.00%  

  14  

  17  

- 

-      -  

-  

  27  

   837  

  27  -

682    

 -

-

-  

-    

-    

-

  15  

  15  

843  

802  

(1)  Holding in shareholder’s equity, net of intercompany profits.
(2)  Holding in shareholder’s equity plus adjustments to conform to YPF S.A. accounting methods.
(3)  Includes A-Evangelists Constrçoes e Serviçios Ltda., Gasoducto del Pacífico (Cayman) Ltd. A&C Pipeline Holding Company. Poligás Luján S.A.C.I., Oleoducto 

Transandinos (Chile) S.A., Gasoducto Oriental S.A. and Mercobank S.A.

(4)  Additionally, the Company has a 29,93% indirect holding in capital stock through Inversora Dock Sud S.A.
(5)  Cost net of cash dividends and capital distributions from long-term investments inflation adjusted in accordance with Note 1. 
(6)  As of December 31, 2007, rhe shareholders and creditors of Gasoducto Argentino S.A. have signed a debt restructuring agreement, whose approval is pending by the 

National Antitrust Protection Board. 

F-52

Pluspetrol 
Energy S.A. 

Oleoducto 
Trasandino 
(Argentina) S.A. 
Other companies: 
Others (3) 

  
  
  
 
 
  
  
  
  
    
    
     
 
 
 
 
 
 
  
    
     
   
   
  
  
 
  
     
  
  
  
  
  
  
  
  
 
  
 
  
 
  
 
  
  
  
  
  
    
    
  
     
    
     
  
  
  
  
    
    
    
 
 
 
 
 
    
    
       
    
     
  
  
  
  
  
       
    
 
 
 
 
 
  
  
 
 
  
  
    
    
  
     
   
   
   
    
    
    
  
c)      Allowances and reserves 

Account 

Deducted from current assets: 
For doubtful trade receivables 
For other doubtful accounts 

Deducted from noncurrent assets: 
For valuation of other receivables to their estimated 
realizable value 
For reduction in value of holdings in long-term 
investments 
For unproductive exploratory drilling 
For obsolescence of materials and equipment 

Total deducted from assets, 2007 
Total deducted from assets, 2006 
Total deducted from assets, 2005 

Reserves for losses - current: 
For various specific contingencies 

Reserves for losses - noncurrent: 
For pending lawsuits, environmental contingencies and 
various specific contingencies 

Total included in liabilities, 2007 
Total included in liabilities, 2006 
Total included in liabilities, 2005 

2007

2006 

2005

Amount at 
Beginning of 
Year

Increases

Decreases

Amount at 
End of Year   

Amount at 
End of Year

Amount at 
End of Year

429
137   
566

52

211
3
46   

312
878   
917   
947

273   
273

1,578   
1,578   
1,851
1,237   
1,028   

93

1   

94

1

10
116

-   

127
221   
396   
157

337   
337

668   
668   

1,005

882   
326   

440 
122 
562 

50 

206 
3 
44 
303 
865 

466 
466 

(1)

1,853
1,853 
2,319 

82
16   
98

3

15
116

2   

136
234   
435   
187

144   
144

393   
393   
537
268   
117   

429
137   
566

52

211
3
46   

312

878   

273   
273

1,578   
1,578   

1,851   

380
121 
501

54

311
3
48 
416

917

230 
230

1,007 
1,007 

1,237 

(1)  Includes 1,548 for YPF’s lawsuits and contingencies and 285 for YPF Holdings’ contingencies, 15 for A-Evangelista S.A’s legal contingencies and 5 for Refinor’s 

legal contingencies as of December 31, 2007. 

F-53

  
  
 
  
 
  
  
 
 
 
 
 
  
   
 
   
   
 
   
   
   
   
   
  
   
   
   
  
   
   
   
   
   
   
   
   
   
  
   
   
   
   
    
  
   
  
   
  
   
  
   
  
   
  
   
   
  
   
   
   
  
   
   
   
  
   
   
   
  
   
   
   
   
   
  
   
  
   
  
   
    
d)    Cost of sales 

Inventories at beginning of year 
Purchases for the year 
Production costs (Note 16.f) 
Holding gains on inventories 
Inventories at end of year 

Cost of sales 

2007 

2006 

2005

1,697     
6,637     
12,788     
451     
(2,573)    
19,000     

1,315
4,351
11,458
394
(1,697)  
15,821   

1,134
2,755
8,440
244
(1,315)
11,258 

F-54

  
  
  
  
  
 
  
  
   
  
     
 
 
e)     Foreign currency assets and liabilities 

Account 

Current Assets 
Cash 
Investments 
Trade receivables 

Other receivables 

Total current assets 

Noncurrent Assets 
Investments 
Other receivables 

Total noncurrent assets 
Total assets 

Current Liabilities 
Accounts payable 

Loans 
Salaries and social security 
Net advances from crude oil purchasers 
Reserves 

Total current liabilities 

Noncurrent Liabilities 
Accounts payable 
Loans 
Salaries and social security 
Net advances from crude oil purchasers 
Reserves 

Total noncurrent liabilities 
Total liabilities 

(1) Buying exchange rate. 
(2) Selling exchange rate. 

Exchange rate 
in pesos as of 
12-31-07

Book value
as of 12-31-07

3.11(1)
3.11(1)
3.11(1)
4.57(1)
3.11(1)
-
4.57(1)   

3.11(1)
3.11(1)   

3.15(2)
4.63(2)
3.15(2)
3.15(2)
3.15(2)
3.15(2)

3.15(2)
3.15(2)
3.15(2)
-
3.15(2)

52
364
1,828
46
3,395
-
18 
5,703

168
19 
187
5,890 

2,229
69
441
16
9
248
3,012 

2,337
523
164
-
1,178
4,202 
7,214 

  US$
  US$
  US$
  €
  US$
  $CH
  -

  US$
  US$

  US$
  €
  US$
  US$
  US$
  -

  US$
  US$
  US$
  US$
  -

Foreign currency and amount

2005

2006

2007

11 US$
91 US$
528 US$
4 €
1,030 US$
113,994 $CH

-    €

2 US$
139 US$
567 US$
15 €
1,262 US$
34,743 -
5    €

17     
117     
588     
10     
1,092     
-     
4     

1 US$
128    US$

51 US$
7    US$

54     
6     

523 US$
12 €
287 US$
7 US$
31 US$
21 US$

736 US$
166 US$
66 US$
2 -
300 US$

708     
15     
140     
5     
3     
79     

742     
166     
52     
-     
374     

454 US$
11 €
48 US$
6 US$
31 US$
- US$

571 US$
365 US$
19 US$
33 US$
- US$

F-55

  
  
  
  
  
  
 
   
 
   
   
 
     
  
     
  
   
      
  
  
  
   
    
    
      
  
 
  
   
      
   
      
   
    
    
      
  
 
   
      
 
  
   
      
   
      
  
   
    
    
      
  
   
  
   
      
   
      
   
    
    
      
  
   
   
      
 
f)     Expenses incurred 

Production 
costs 

Administrative 
expenses

2007
Selling
expenses

Exploration 
expenses

Total 

2006 

Total 

2005

Total

Salaries and social security taxes 
Fees and compensation for services 
Other personnel expenses 
Taxes, charges and contributions 
Royalties and easements 
Insurance 
Rental of real estate and equipment 
Survey expenses 
Depreciation of fixed assets 
Industrial inputs, consumable materials 

and supplies 
contracts 

Operation services and other service 

Preservation, repair and maintenance     
Contractual commitments 
Unproductive exploratory drillings 
Transportation, products and charges     
Allowance for doubtful trade 

receivables 

Publicity and advertising expenses 
Fuel, gas, energy and miscellaneous 

Total 2007 
Total 2006 
Total 2005 

824     
174     
283     
226     
1,989     
106     
331     
-     
3,989     

535     

535     
1,674     
596     
-     
790     

-     
-     
736     
12,788     
11,458     
8,440     

186
295
84
24
-
3
4
-
48

11

15
21
-
-
-

-
54
60   

805
674
552

170
42
26
301
6
13
60
-
102

42

82
57
-
-
1,023

45
88
63   

2,120
1,797
1,650

F-56

45
6
22
-
11
4
1
218
-

5

45
5
-
144
-

-
-
16   
522
460
280

1,225     
517     
415     
551     
2,006     
126     
396     
218     
4,139     

593     

677     
1,757     
596     
144     
1,813     

45     
142     
875     
16,235     

971
399
334
446
2,101
122
323
124
3,718

532

664
1,400
519
199
1,488

76
140
833   

14,389

758
270
254
367
1,753
86
272
108
2,707

613

396
997
131
70
1,376

31
120
613 

10,922

 
  
 
  
  
  
 
   
  
 
   
   
  
   
     
     
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
      
   
      
SUPPLEMENTAL INFORMATION ON OIL AND GAS PRODUCING ACTIVITIES (UNAUDITED) 

The following information is presented in accordance with SFAS No. 69, "Disclosures about Oil and Gas Producing Activities" (amounts expressed in 
millions of Argentine Pesos, except where otherwise indicated). 

Capitalized costs 

The  following  tables  set  forth  capitalized  costs,  along  with  the  related accumulated  depreciation  and  allowances  as  of  December 31, 2007,  2006  and 
2005: 

Drilling and work in 

Proved oil and gas properties 
Mineral property, wells and 
related equipment 
Support equipment and 
facilities 
progress 
Unproved oil and gas 
properties 
Total capitalized costs 
Accumulated depreciation and 
valuation allowances 
Net capitalized costs 
Company’s share in 
equity method 
investees’  net 
capitalized costs 

  Argentina    

2007 
Other 
foreign      Worldwide

Argentina

2006
Other 
foreign

Worldwide

Argentina    

2005
Other 
foreign

Worldwide

50,871     

545     

51,416

47,398

1,358     

-     

1,358

2,656     

-     

2,656

147     
55,032     

50     
595     

197
55,627

(37,613)    

(18)    

(37,631)

17,419     

577     

17,996

1,183

2,049

109
50,739

(34,111)
(1)

16,628

36

-

293

31
360

(22)

338

47,434

43,785     

1,183

2,342

140
51,099

1,000     

1,561     

136     
46,482     

(34,133)

(30,859)    

16,966

15,623     

23

-

101

56
180

(19)

161

43,808

1,000

1,662

192
46,662

(30,878)

15,784

73     

-     

73

78

-

78

108     

-

108

(1)    Includes 1,127 of net capitalized cost related to other assets disposed by sale.

Costs incurred 

The following tables set forth the costs incurred for oil and gas producing activities during the years ended December 31, 2007, 2006 and 2005: 

Acquisition of unproved 
properties 
Exploration costs 
Development costs 

Total costs incurred 
Company’s share in 
equity method 
investees’ total costs 
incurred 

  Argentina    

2007 
Other 
foreign      Worldwide

Argentina

2006
Other 
foreign

Worldwide

Argentina    

2005
Other 
foreign

Worldwide

-     
545     
4,225     
4,770     

-     
31     
265     
296     

-
576
4,490
5,066   

-
427
4,243
4,670   

-
75
174
249   

-
502
4,417
4,919     

-     
371     
3,236     
3,607     

15
54
37
106   

15
425
3,273
3,713 

18     

-     

18

9

-

9

12     

-

12

Results of operations from oil and gas producing activities 

The following tables include only the revenues and expenses directly associated with oil and gas producing activities. It does not include any allocation 
of the interest costs or corporate overhead and, therefore, is not necessarily indicative of the contribution to net earnings of the oil and gas operations. 

Differences between these tables and the amounts shown in Note 8, "Consolidated Business Segment Information", for the exploration and production 
business unit, relate to additional operations that do not arise from those properties held by the Company. 

F-57

  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
  
  
 
  
   
     
     
 
     
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
  
 
  
   
 
   
 
   
 
   
   
 
  Argentina    
2,737     
13,989     
16,726     
(6,989)    
(465)    

2007 
Other 
foreign      Worldwide
2,749
12     
13,989   
-     
16,738
12     
(6,996)
(7)    
(522)
(57)    

Argentina
2,539
13,960   
16,499
(6,168)
(392)

(3,572)    
(190)    

5,510     
(2,314)    

(4)    
-     

(3,576)

(190)  

(3,226)

(117)  

(56)    
-     

5,454
(2,314)

6,596
(2,589)

3,196     

(56)    

3,140

4,007

2006
Other 
foreign

13

-   

13
(7)
(68)

(4)

-   

(66)
-

(66)

Worldwide
2,552

Argentina    
2,366     
11,467     
13,833     
(4,247)    
(231)    

13,960     
16,512
(6,175)
(460)

(3,230)

(117)    

(2,190)    
(44)    

6,530
(2,589)

7,121     
(2,740)    

3,941

4,381     

2005
Other 
foreign

14

-   

14
(6)
(49)

(7)

-   

(48)
(2)

(50)

Worldwide
2,380
11,467 
13,847
(4,253)
(280)

(2,197)
(44)

7,073
(2,742)

4,331

45     

-     

45

51

-

51

51     

-

51

Net sales to unaffiliated parties     
Net intersegment sales 
Total net revenues 
Production costs 
Exploration expenses 
Depreciation and expense for 
valuation allowances 

Other 

Pre-tax income (loss) from 
producing activities 

Income tax expense 

Results of oil and gas 
producing activities 
Company’s share in equity 
method investees’results 
of operations 

Oil and gas reserves 

Proved oil and gas reserves are the estimated quantities of crude oil, natural gas, and natural gas liquids which geological and engineering available data 
demonstrate with reasonable certainty to be recoverable in future years from known reservoirs under existing economic and operating conditions, i.e., 
prices and costs as of the date the estimate is made. Prices include consideration of changes in existing prices provided by contractual arrangements, but 
not  on  increases  based  upon  future  conditions.  Proved  developed  oil  and  gas  reserves  are  reserves  that  can  reasonably  be  expected  to  be  recovered 
through existing wells with existing equipment and operating methods. 

Estimates of reserves were prepared using standard geological and engineering methods generally accepted by the petroleum industry and in accordance 
with the rules and regulations of the SEC. The choice of method or combination of methods employed in the analysis of each reservoir was determined 
by  experience  in  the  area,  stage  of  development,  quality  and  completeness  of  basic  data,  and  production  history.  There  are  numerous  uncertainties 
inherent in estimating quantities of proved reserves and in projecting future rates of production and timing of development expenditures, including many 
factors beyond the control of the producer. Reserve engineering is a subjective process of estimating underground accumulations of crude oil and natural 
gas that cannot be measured in an exact manner and the accuracy of any reserve estimate is a function of the quality of available data and of engineering 
and  geological  interpretation  and  judgment.  In  addition,  results  of  drilling,  testing  and  production  subsequent  to  the  date  of  an  estimate  may  justify 
revision of such estimate. Accordingly, reserve estimates are often different from the quantities of crude oil and natural gas that are ultimately recovered. 
The meaningfulness of such estimates is highly dependent upon the accuracy of the assumption upon which they were based. The reserve estimates were 
subjected to economic tests to determine economic limits. The reserves in Argentina are stated prior to the payment of any royalties to the provinces in 
which  the  reserves  are  located.  Consequently,  royalties  are  given  effect  in  such  economic  tests  as  operating  costs  in  Argentina.  The  estimates  may 
change  as  a  result  of  numerous  factors  including,  but  not  limited  to,  additional  development  activity,  evolving  production  history,  and  continued 
reassessment of the viability of production under varying economic conditions. 

F-58

  
  
  
  
  
  
  
  
  
 
  
 
   
   
 
   
 
   
 
   
 
   
   
 
   
 
   
 
   
 
The following tables reflect the estimated reserves of crude oil, condensate, natural gas liquids and natural gas as of December 31, 2007, 2006 and 2005 
and the changes therein. 

2007 
Other 
foreign      Worldwide Argentina

Crude oil, condensate and natural gas liquids (Millions of barrels) 
2006
Other 
foreign

Worldwide Argentina  

2005
Other 
foreign

Worldwide

  Argentina  

Proved developed and 

undeveloped reserves 
Beginning of year 
Revisions of previous 
estimates 
Extensions, discoveries and 
improved recovery 
Production for the year 
End of year 

Proved developed reserves 
Beginning of year 
End of year 

Company’s share in equity 
method investees’proved 
developed and undeveloped 
reserves 

674 

46 

17 
(120)    
(1)

617

521 

(2)

460

6     

-     

-     
-     

6     

-     

-     

680

46

17
(120)  

623   

521

460

771

9

20
(126)  
(1)

674

604

521

(2)

2 

-     

2

3

6

-

-
-   

6   

-

-

-

777

9

20
(126)    

680     

604

521

1,058 

(175)    

22 
(134)    
(1)

771

863 

(2)

604

3

3 

6

-

-
-   

6   

-

-

-

1,064

(175)

22
(134)

777 

863

604

3

(1)    Includes natural gas liquids of 114, 123 and 150 as of December 31, 2007, 2006 and 2005, respectively.

(2)    Includes natural gas liquids of 76, 83 and 108 as of December 31, 2007, 2006 and 2005, respectively.

  Argentina    

2007 
Other 
foreign      Worldwide

Natural gas (Billions of standard cubic feet)
2006
Other 
foreign

Worldwide

Argentina

Argentina    

2005
Other 
foreign

Worldwide

4,008     

7     

4,015

4,675

319     
9     

(634)    
3,702     

2,568     
2,438     

-     
-     

(1)    
6     

3     
3     

319
9

(635)  
3,708

2,571
2,441

(63)
46

(650)  
4,008

3,197
2,568

51     

-     

51

73

8

-
-

(1)  
7

4
3

-

4,683

5,668     

(63)
46

(651)    
4,015

3,201
2,571

(356)    
30     

(667)    
4,675     

4,041     
3,197     

73

97     

8

1
-

(1)  
8

4
4

-

5,676

(355)
30

(668)
4,683

4,045
3,201

97

Proved developed and 

undeveloped reserves 
Beginning of year 
Revisions of previous 
estimates 
Extensions and discoveries 
Production for the year (1) 
End of year 

Proved developed reserves 
Beginning of year 
End of year 

Company’s share in equity 
method investees’proved 
developed and undeveloped 
reserves 

(1)    Excludes quantities which have been flared or vented. 

F-59

  
  
 
  
  
  
  
  
  
  
  
 
  
 
  
 
 
   
 
   
     
 
 
   
   
   
 
   
   
   
 
   
   
 
   
   
   
   
 
   
   
 
   
      
 
  
   
   
   
 
   
   
   
 
   
   
   
 
   
  
 
  
 
  
   
     
     
 
     
   
 
   
 
   
 
   
   
 
   
      
      
 
      
   
 
   
 
   
 
Standardized measure of discounted future net cash flows 

The  standardized  measure  is  calculated  as  the  excess  of  future  cash  inflows  from  proved  reserves  less  future  costs  of  producing  and  developing  the 
reserves,  future  income  taxes  and  a  discount  factor.  Future  cash  inflows  represent  the  revenues  that  would  be  received  from  production  of  year-end 
proved reserve quantities assuming the future production would be sold at year-end prices. Additionally, year-end prices were adjusted in those instances 
where future sales are covered by contracts at specified prices. 

Future production costs include the estimated expenditures related to production of the proved reserves plus any production taxes without consideration 
of future inflation. Future development costs include the estimated costs of drilling development wells and installation of production facilities, plus the 
net  costs  associated  with  dismantling  and  abandonment  of  wells,  assuming  year-end  costs  continue  without  consideration  of  future  inflation.  Future 
income taxes were determined by applying statutory rates to future cash inflows less future production costs and less tax depreciation of the properties 
involved. The present value was determined by applying a discount rate of 10% per year to the annual future net cash flows. 

The future cash inflows and outflows in foreign currency have been remeasured at the selling exchange rate of Argentine pesos 3.15, 3.06 and 3.03 to 
US$ 1, as of December 31, 2007, 2006 and 2005, respectively. 

The standardized measure does not purport to be an estimate of the fair market value of the Company's proved reserves. An estimate of fair value would 
also take into account, among other things, the expected recovery of reserves in excess of proved reserves, anticipated changes in future prices and costs 
and a discount factor representative of the time value of money and the risks inherent in producing oil and gas. 

The following information has been determined on a basis which presumes the year-end economic and operating conditions will continue over the years 
during which proved reserves would be produced. Neither the effects of future pricing nor expected future changes in technology and operating practices 
have been considered. 

  Argentina    

2007 
Other 
foreign      Worldwide

Argentina

2006
Other 
foreign

Worldwide

Argentina    

2005
Other 
foreign

Worldwide

Future cash inflows (1) 
Future production costs 
Future development costs 
Future net cash flows, before 

Discount for estimated timing of 

income taxes 
future cash flows 

Future income taxes, discounted 

at 10% (2) 

Standardized measure of 
discounted future net 
cash flows 

Company’s share in equity 

method 
investees’standardized 
measure of discounted future 
net cash flows 

120,976     
(34,829)    
(9,164)    

1,871     
(498)    
(145)    

122,847
(35,327)
(9,309)  

102,269
(29,590)

(9,878)  

76,983     

1,228     

78,211

62,801

(26,019)    

(336)    

(26,355)

(21,057)

52
(6)

-   

46

(20)

102,321
(29,596)

(9,878)    

123,963     
(28,701)    
(9,054)    

62,847

86,208     

(21,077)

(28,082)    

109
(12)

-   

97

(42)

124,072
(28,713)
(9,054)

86,305

(28,124)

(14,917)    

(312)    

(15,229)  

(11,811)  

(9)  

(11,820)    

(18,757)    

(19)  

(18,776)

36,047     

580     

36,627   

29,933   

17   

29,950     

39,369     

36   

39,405 

184

-

184

194

-

194

215

-

215

(1)    Future cash inflows are stated net of the impact of withholdings on exports until 2011, according to the provisions of Law No. 26,217. 

(2)    Undiscounted future income taxes are 22,820, (22,390 for Argentina and 430 for Other foreign), 17,398 (17,382 for Argentina and 16 for Other foreign) and 27,280

(27,245 for Argentina and 35 for Other foreign) as of December 31, 2007, 2006 and 2005, respectively.

F-60

  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
   
     
     
 
     
   
 
   
 
   
   
 
   
 
   
   
  
   
      
      
 
      
Changes in the standardized measure of discounted future net cash flows 

The following table reflects the changes in standardized measure of discounted future net cash flows for the years ended December 31, 2007, 2006 and 
2005: 

Beginning of year 
Sales and transfers, net of production costs 
Net change in sales and transfer prices, net of future production costs
Changes in reserves and production rates (timing) 
Net changes for extensions, discoveries and improved recovery
Changes in estimated future development and abandonment costs
Development costs incurred during the year that reduced future development costs
Accretion of discount 
Net change in income taxes 
Others 
End of year 

F-61 

2007 

2006 

2005

29,950     
(8,304)    
7,056     
5,391     
793     
(949)    
1,762     
2,198     
(2,123)    
853     
36,627     

39,405
(11,187)
(13,716)
2,107
471
(1,545)
1,933
3,388
8,705

389   
29,950   

34,482
(10,753)
20,505
(10,223)
1,776
(2,269)
1,485
3,105
678
619 
39,405 

  
  
  
  
  
  
  
  
  
   
  
     
 
 
Exhibit 1.1 

ESTATUTO 
DE 
YPF SOCIEDAD ANONIMA (1) 

TITULO I 
DENOMINACIÓN, DOMICILIO Y DURACIÓN 

Artículo 1° - Denominación 

La Sociedad se denomina YPF SOCIEDAD ANÓNIMA. En el cumplimiento de las actividades propias de su objeto social y 
en todos los actos jurídicos que formalice, podrá usar, indistintamente, su nombre completo o el abreviado YPF S.A. 

Artículo 2° - Domicilio 

El domicilio legal de la Sociedad se fija en la Ciudad de Buenos Aires, República Argentina, sin perjuicio de lo cual podrá 
establecer  administraciones  regionales,  delegaciones,  sucursales,  agencias  o  cualquier  especie  de  representación  dentro  o 
fuera del país. 

Artículo 3° - Duración 

El término de duración de la Sociedad se establece en cien (100) años contados desde la inscripción de este Estatuto en el 
Registro Público de Comercio. 

TITULO II 
OBJETO 

Artículo 4° - Objeto (2) (8) (12) 

La Sociedad tendrá por objeto llevar a cabo por sí, por intermedio de terceros o asociada a terceros, el estudio, la exploración 
y  la  explotación  de  los  yacimientos  de  hidrocarburos  líquidos  y/o  gaseosos  y  demás  minerales,  como  asimismo,  la 
industrialización, transporte y comercialización de estos productos y sus derivados directos e indirectos, incluyendo también 
productos petroquímicos, químicos derivados o no de hidrocarburos y combustibles de origen no fósil, biocombustibles y sus 
componentes, así como la generación de energía eléctrica a partir de hidrocarburos, a cuyo efecto podrá elaborarlos,  

1

  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
utilizarlos, comprarlos, venderlos, permutarlos, importarlos o exportarlos, así como también tendrá por objeto prestar, por sí, 
a través de una sociedad controlada, o asociada a terceros, servicios de telecomunicaciones en todas las formas y modalidades 
autorizadas por la legislación vigente y previa solicitud de las licencias respectivas en los casos que así lo disponga el marco 
regulatorio  aplicable,  así  como  también  la  producción,  industrialización,  procesamiento,  comercialización,  servicios  de 
acondicionamiento,  transporte  y  acopio  de  granos  y  sus  derivados,  así  como  también  realizar  cualquier  otra  actuación 
complementaria de su actividad industrial y comercial o que resulte necesaria para facilitar la consecución de su objeto. Para 
el mejor cumplimiento de estos objetivos podrá fundar, asociarse con o participar en personas jurídicas de carácter público o 
privado domiciliadas en el país o en el exterior, dentro de los límites establecidos en este Estatuto. 

Artículo 5° - Medios para el cumplimiento del objeto social 

a) 

Para  cumplir  su  objeto  la  sociedad  podrá  realizar  toda  clase  de  actos  jurídicos  y  operaciones  cualesquiera  sea  su
carácter  legal,  incluso  financieros,  excluida  la  intermediación,  que  hagan  al  objeto  de  la  Sociedad,  o  estén
relacionados con el mismo, dado que, a los fines del cumplimiento de su objeto, la Sociedad tiene plena capacidad 
jurídica para adquirir derechos, contraer obligaciones y ejercer todos los actos que no sean prohibidos por las leyes o 
por este Estatuto. 

b) 

En particular, la Sociedad podrá: 

(i) 

(ii) 

Adquirir por compra o cualquier título, bienes inmuebles, muebles, semovientes, instalaciones y toda clase de 
derechos, títulos, acciones o valores, venderlos, permutarlos, cederlos y disponer de ellos bajo cualquier título,
darlos en garantía y gravarlos, incluso con prendas, hipotecas o cualquier otro derecho real y constituir sobre
ellos  servidumbres,  asociarse  con  personas  de  existencia  visible  o  jurídica,  concertar  contratos  de  unión
transitoria de empresas y de agrupación de colaboración empresaria.

Celebrar  toda  clase  de  contratos  y  contraer  obligaciones,  incluso  préstamos  y  otras  obligaciones,  con  bancos
oficiales  o  particulares,  nacionales  o  extranjeros,  organismos  internacionales  de  crédito  y/o  de  cualquier  otra
naturaleza, aceptar consignaciones, comisiones y/o mandatos y 

2

  
 
 
 
  
 
  
   
(ii) 

(iii) 

otorgarlos, conceder créditos comerciales vinculados con su giro.

Emitir, en el país o en el extranjero, debentures, obligaciones negociables y otros títulos de deudas en cualquier
moneda con o sin garantía real, especial o flotante, convertibles o no.

Artículo 6° - Capital (7) 

TITULO III 
CAPITAL.  ACCIONES 

a)  Monto  del  capital  social:  El  capital  social  se  fija  en  la  suma  de  pesos  TRES  MIL  NOVECIENTOS  TREINTA  Y
TRES MILLONES CIENTO VEINTISIETE MIL NOVECIENTOS TREINTA ($ 3.933.127.930) totalmente suscripto e
integrado,  representado  por  TRESCIENTOS  NOVENTA  Y  TRES  MILLONES  TRESCIENTOS  DOCE  MIL
SETECIENTOS NOVENTA Y TRES (393.312.793) de acciones ordinarias escriturales, de DIEZ PESOS ($10,00) valor
nominal cada una y un voto por acción. 

b)  (4)  Clases  de  acciones  ordinarias:  El  capital  social  se  divide  en  cuatro  clases  de  acciones  ordinarias  de  acuerdo  al 
siguiente detalle: 

(i)  Acciones clase A, sólo el Estado Nacional podrá ser titular de acciones clase A. 

(ii) Acciones clase B, destinadas originariamente  a ser  adquiridas por tenedores de Bonos de Consolidación  de
Regalías de Gas y Petróleo o titulares de acreencias contra la Nación por regalías de gas y petróleo. La acción
clase B adquirida por un tenedor de  los citados Bonos que  no fuera  una  Provincia o el  Estado Nacional  se
convertirá en acción clase D. 

(iii) Acciones clase C, destinadas originariamente por el Estado Nacional  a los empleados de la Sociedad bajo el
régimen del Programa de Propiedad Participada de la Ley 23.696. Las acciones clase C no  adquiridas por los
empleados de la Sociedad bajo el Programa de Propiedad Participada se convertirán en acciones clase A; y

3

  
 
  
 
 
 
 
 
 
 
 
  
   
   
   
  
   
   
(iv)  Acciones  clase  D,  convertidas  en  tales  por  transferencia  a  cualquier  persona  de  acciones  clase  A,  B  o  C  de 

acuerdo a las siguientes reglas: 

-  Las acciones clase A que el Estado Nacional transfiera a cualquier persona se convertirán en acciones clase D,

salvo transferencias a Provincias si una ley previamente lo autoriza en cuyo caso no cambiarán de clase.

-  Las acciones clase B que las Provincias transfieran a cualquier persona que no sea una Provincia se convertirán 

en acciones clase D.

-  Las acciones clase C que se transfieran a terceros fuera del Programa de Propiedad Participada se convertirán en 

acciones clase D. 

-  Las acciones clase D no cambiarán de clase por ser eventualmente suscriptas o adquiridas por el Estado Nacional, 
las Provincias, otra persona jurídica de carácter público o por personal que participa en el Programa de Propiedad 
Participada. 

c)  Derechos especiales de la clase A: Se requerirá el voto favorable de las acciones clase A, cualquiera sea el porcentaje del 

capital social que dichas acciones clase A representen para que la Sociedad válidamente resuelva: 

  (i)  Decidir la fusión con otra u otras sociedades;

(ii) Aceptar que la Sociedad, a través de la adquisición por terceros de sus acciones, sufra una situación de copamiento
accionario consentido u hostil que represente la posesión de más del cincuenta por ciento (50 %) del capital social de
la Sociedad; 

(iii)  Transferir  a  terceros,  la  totalidad  de  los  derechos  de  explotación  concedidos  en  el  marco  de  la  Ley  17.319,  sus
normas  complementarias  y   reglamentarias,  y  la  Ley  24.145,  de  modo  tal  que  ello  determine  el  cese  total  de  la
actividad exploratoria y de explotación de la Sociedad;

(iv) La disolución voluntaria de la Sociedad. 

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(v) (4) El cambio de domicilio social y/o fiscal de la Compañía fuera de la República Argentina. 

Se  requerirá,  además,  previa  aprobación  de  una  ley  nacional  para  resolver  favorablemente  sobre  los  subincisos  (iii)  y  (iv) 
anteriores. 

d)  Acciones preferidas: La Sociedad puede emitir acciones preferidas con o sin derecho de voto divididas también en clases 
A, B, C y D. Se aplicarán a cada clase de acciones preferidas las mismas reglas sobre titularidad y conversión que las 
previstas para la misma clase de acciones ordinarias en el inciso b) precedente. Cuando las acciones preferidas ejerzan el 
derecho de voto (ya sea transitoria o permanentemente) lo harán, en su caso, como integrantes, a ese efecto, de la clase a 
la cual pertenezcan. 

e)  Aumentos de Capital: El capital puede ser aumentado hasta su quíntuplo por decisión de la asamblea ordinaria, conforme 
lo dispuesto por el artículo 188 de la Ley 19.550, no rigiendo tal límite si la Sociedad es autorizada a hacer oferta pública 
de sus acciones. Corresponde a la Asamblea establecer las características de las acciones a emitir en razón del aumento, 
dentro de las condiciones dispuestas en el presente Estatuto, pudiendo delegar en el directorio la facultad de fijar la 
época de las emisiones, como también la determinación de la forma y condiciones de pago de las acciones, pudiendo 
efectuar, asimismo, toda otra delegación admitida por la ley. Toda emisión de acciones ordinarias o preferidas se hará 
por clases respetando la proporción existente entre las distintas clases a la fecha de esa emisión, sin perjuicio de las 
modificaciones que ulteriormente resulten del ejercicio del derecho de preferencia y del derecho de acrecer según se 
prevé en el artículo 8° de este Estatuto. 

Artículo 7° - Transferencia de acciones (6) (10) (13) 

a)  Acciones escriturales: Las acciones no se representarán en títulos sino que serán escriturales y se inscribirán en cuentas 

llevadas a nombre de sus titulares en la Sociedad, bancos comerciales, de inversión o cajas de valores autorizados, según 
lo disponga el directorio. Las acciones son indivisibles. Si existiese copropiedad, la representación para el ejercicio de 
los derechos o el cumplimiento de las obligaciones deberá unificarse.

b)  Transferencia de acciones clase A o C: Toda transferencia de acciones clase A efectuada en violación de lo dispuesto por 

el último párrafo de artículo 8° de la Ley 24.145, o de acciones clase C

5

  
  
 
 
 
 
 
 
  
   
efectuada en violación de las normas del Programa de Propiedad Participada o del respectivo Acuerdo General de 
Transferencia comunicado fehacientemente a la Sociedad, será nula, carecerá de todo efecto y no será reconocida por la 
Sociedad. 

c)  Deber de información: Toda persona que, directa o indirectamente, adquiera por cualquier medio o título, acciones clase 
D, o que al transferirse se conviertan en clase D, o títulos de la Sociedad de cualquier tipo que sean convertibles en 
acciones clase D (incluyendo, dentro del significado del término “título”, pero sin limitarse, a los debentures, 
obligaciones negociables y cupones de acciones) que otorguen control sobre más del tres por ciento (3%) de las acciones 
de la clase D, deberá dentro de los cinco (5) días de efectuada la adquisición que causó la superación de dicho límite, 
informar esa circunstancia a la Sociedad, sin perjuicio de cumplir con los recaudos adicionales que las normas aplicables 
en los mercados de capitales impongan para tal evento. La información referida deberá detallar, además, la fecha de la 
operación, el precio, el número de acciones adquiridas y si es propósito del adquirente de esa participación adquirir una 
participación mayor o alcanzar el control de la voluntad social de la Sociedad.  Si el adquirente está conformado por un 
grupo de personas, deberá identificar los miembros del grupo.  La información aquí prevista deberá proporcionarse con 
relación a adquisiciones posteriores a la informada originariamente brindada, cuando se vuelva a exceder, según lo aquí 
previsto, los montos de acciones clase D indicados en la última información.

d)  Toma de control: Sin cumplirse con lo indicado en los incisos e) y f) de este artículo no podrán adquirirse, directa o 
indirectamente, por cualquier medio o título, acciones de la Sociedad o títulos de la Sociedad (incluyendo dentro del 
significado del término “título”, pero sin limitarse, a los debentures, obligaciones negociables y cupones de acciones) 
convertibles en acciones cuando, como consecuencia de dicha adquisición, el adquirente resulte titular de, o ejerza el 
control sobre acciones Clase D de la Sociedad que, sumadas a sus tenencias anteriores de dicha clase (si las hubiere) 
representen, en total, el QUINCE POR CIENTO (15%) o más del capital social, o el VEINTE POR CIENTO (20%) o 
más de las acciones clase D en circulación, si las acciones representativas de dicho VEINTE POR CIENTO (20%) 
constituyeran, al mismo tiempo, menos del QUINCE POR CIENTO (15%) del capital social. 

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   No 

obstante lo indicado, estarán excluidas de las previsiones de los incisos e) y f) de este artículo las adquisiciones
que  realice  quien  ya  sea  titular  o  ejerza  el  control  de  acciones  que  representen  más  del  CINCUENTA  POR
CIENTO (50% ) del capital social. 

Las adquisiciones a las que se refiere este inciso d) se denominan “Adquisiciones de control”. 

e)  Requisitos: La persona que desee llevar a cabo una Adquisición de Control (en adelante, en este inciso “el oferente”) 

deberá: 

(i) Obtener el consentimiento previo de la asamblea especial de los accionistas de la clase A y 

(ii)  Realizar  una  oferta  pública  de  adquisición  de  todas  las  acciones  de  todas  las  clases  de  la  Sociedad  y  de  todos  los

títulos convertibles en acciones. 

  Toda decisión que la asamblea especial de la clase A adopte en relación con las materias previstas en este inciso e) será

definitiva y no generará derecho a indemnización alguna para ninguna parte.

f)  Oferta Pública de Adquisición: Cada oferta pública de adquisición será realizada de acuerdo con el procedimiento 
indicado en este inciso y, en la medida que las normas aplicables en las jurisdicciones en que la oferta pública de 
adquisición sea hecha y las disposiciones de las bolsas y mercados de valores en donde coticen las acciones y títulos de 
la Sociedad impongan requisitos adicionales o más estrictos a los aquí indicados, se cumplirá con dichos requisitos 
adicionales o más estrictos en las bolsas y mercados en que ellos sean exigibles.

(i)  El Oferente deberá notificar por escrito a la Sociedad de la oferta pública de adquisición con por lo menos quince
días hábiles de anticipación a la fecha de inicio de la misma. En la notificación se informará a la Sociedad todos los
términos  y  condiciones  de  cualquier  acuerdo  o  preacuerdo  que  el  oferente  hubiera  realizado  o  proyectara  realizar
con  un  tenedor  de  acciones  de  la  Sociedad  en  virtud  del  cual,  si  dicho  acuerdo  o  preacuerdo  se  consumara,  el
Oferente se encontraría en la situación descripta por el primer párrafo del inciso d) de este Artículo (en adelante, el
Acuerdo Previo), y, además, toda la siguiente información mínima adicional:

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(A)  La identidad, nacionalidad, domicilio y número de teléfono del Oferente;

(B)  Si el oferente está conformado por un grupo de personas, la identidad y domicilio de cada Oferente en el grupo y 

de la persona directiva de cada persona o entidad que conforme el grupo;

(C)  La  contraprestación  ofrecida  por  las  acciones  y/o  títulos.  Si  la  oferta  está  condicionada  a  que  un  número

determinado de acciones resulte adquirido, se deberá indicar dicho mínimo;

(D) 

La fecha programada de vencimiento del plazo de validez de la oferta pública de adquisición, si la misma puede
ser prorrogada, y en su caso el procedimiento para su prórroga;

(E)  Una declaración por parte del Oferente sobre las fechas exactas con anterioridad y posterioridad a las cuales los
accionistas y tenedores de títulos que los sujetaron para su venta al régimen de la oferta pública de adquisición
tendrán el derecho de retirarlos, la forma en la cual las acciones y títulos así sujetos a la venta serán aceptados y
sujeta  a  la  cual  se  realizará  el  retiro  de  las  acciones  y  títulos  de  su  sujeción  al  régimen  de  la  oferta  pública  de
adquisición; 

(F)  Una declaración indicando que la oferta pública de adquisición estará abierta a todos los tenedores de acciones y

de títulos convertibles en acciones; 

(G) 

La información adicional, incluyendo los estados contables del Oferente, que la Sociedad pueda razonablemente
requerir o que pueda ser necesaria para que la notificación arriba indicada no conduzca a conclusiones erróneas o
cuando la información suministrada sea incompleta o deficiente.

(ii)  El  Directorio  de  la Sociedad  convocará  por  cualquier  medio  fehaciente  a  una  Asamblea  especial  de  la  clase  A  a 
celebrarse a los diez días hábiles contados a partir de la recepción por la Sociedad del aviso indicado en el subinciso 
(i),  a  fin  de  considerar  la  aprobación  de  la  oferta  pública  de  adquisición  y  someterá  a dicha  Asamblea  su 
recomendación  al  respecto.  Si  tal  asamblea  no  se  celebra  pese  a  la  convocatoria,  o  si  se  celebrara  y  en  ella  se 
rechazara la oferta pública de adquisición, ésta no 

8

  
 
  
 
 
 
 
 
 
 
  
   
     podrá cumplirse y tampoco se llevará a cabo el Acuerdo Previo, si existiera.

(iii) La Sociedad enviará por correo, a cada accionista o tenedor de títulos convertibles en acciones, a costa del Oferente,
con  la  diligencia  razonable,  copia  de  la  notificación  entregada  a  la  Sociedad  de  acuerdo  con  lo  indicado  en  el 
subinciso (i). El Oferente deberá adelantar a la Sociedad los fondos requeridos para este fin. 

(iv)  El  Oferente  enviará  por  correo  o  de  otra  forma  suministrará,  con  una  diligencia  razonable,  a  cada accionista  o 
tenedor de títulos convertibles en acciones que se lo requiera, copia de la notificación suministrada a la Sociedad y 
publicará  un aviso  conteniendo  sustancialmente  la  información indicada  en  el  subinciso  (i),  al  menos  una  vez  por 
semana, comenzando en la fecha en que dicha notificación es entregada a la Sociedad de acuerdo con el subinciso (i) 
y terminando al expirar la fecha para la oferta pública de adquisición. Sujeto a las disposiciones legales aplicables, 
esta publicación se hará en la sección de negocios de diarios de circulación general en la República Argentina, en la 
ciudad de Nueva York, EE.UU. y en cualquier otra ciudad en cuya bolsa o mercado coticen las acciones.

(v)  La contraprestación por cada acción o título convertible en acción pagadera a cada accionista o tenedor del título será la misma, en dinero, y no 

será inferior al precio por acción clase D o en su caso título convertible en acción clase D, más alto de los precios siguientes: 

(A)  el mayor precio por acción o título pagado por el Oferente, o por cuenta del Oferente, en relación con cualquier
adquisición  de  acciones  clase  D  o  títulos  convertibles  en  acciones  clase  D  dentro  del  período  de  dos  años
inmediatamente anterior al aviso de la adquisición de Control, ajustado a raíz de cualquier división accionaria,
dividendo en acciones, subdivisión o reclasificación que afecte o se relacione a la clase D de acciones; o

(B)  El precio más alto cierre vendedor durante el período de treinta días inmediatamente precedente a dicho aviso,
de una acción clase D según su cotización en la Bolsa de Comercio de Buenos Aires, en cada caso ajustado a
raíz de cualquier división accionaria, dividendo en acciones, subdivisión o 

9

  
 
  
 
 
 
 
  
   
   
   
   
   
reclasificación que afecte o se relacione a la clase D de acciones; o

(C)  Un precio por acción igual al precio de mercado por acción de la clase D determinado según lo indicado en el
subinciso (B) de esta cláusula multiplicado por la relación entre: (a) el precio por acción más alto pagado por el
Oferente o por cuenta del mismo, por cualquier acción de la clase D, en cualquier adquisición de acciones de la
clase dentro de los dos años inmediatamente precedentes a la fecha del aviso indicado en el subinciso (i), y (b) 
dicho precio de mercado por acción de la clase D en el día inmediatamente precedente al primer día del período
de dos años en el cual el Oferente adquirió cualquier tipo de interés o derecho en una acción de la clase D. En
cada caso el precio será ajustado teniendo en cuenta cualquier subsiguiente división accionaria, dividendo en
acciones, subdivisión o reclasificación que afecte o esté relacionada a la clase D; o 

(D)  El ingreso neto de la Sociedad por acción de la clase D durante los cuatro últimos trimestres fiscales completos
inmediatamente precedentes a la fecha del aviso indicado en el subinciso (i), multiplicado por la más alta de las 
siguientes relaciones: la relación precio/ingreso para ese período para las acciones de la clase D (si lo hubiere) 
o la relación precio/ingreso más alta para la Sociedad en el período de dos años inmediatamente precedente a
la fecha del aviso indicado en el subinciso (i).  Dichos múltiplos serán determinados en la forma común en la
cual se los computa e informa en la comunidad financiera.

(vi) 

(vii) 

Los accionistas o tenedores de títulos que los hayan sujetado a la oferta pública de adquisición podrán retirarlos de la
misma antes de la fecha fijada para el vencimiento de dicha oferta.

(13) La oferta pública de adquisición no podrá ser inferior a VEINTE (20) días, ni exceder de TREINTA (30) días
contados  desde  la  fecha  de  autorización  de  la  solicitud de  oferta  pública  por  la  Comisión  Nacional  de  Valores  de
Argentina. 

(viii)  El Oferente adquirirá todas las acciones y/o títulos convertibles en acciones que antes de la fecha de la expiración de
la  oferta,  sean  puestos  a  venta  de  acuerdo  al  régimen  de  la  oferta  pública  de  adquisición.  Si  el  número  de  dichas
acciones  o títulos es  

10

  
  
 
 
 
 
  
 
 
 
 
 
   
   
menor al mínimo al cual condicionó el Oferente la oferta pública de adquisición, el Oferente podrá retirarla.

(ix) 

Si el Oferente no ha fijado un mínimo al cual condiciona su oferta pública de adquisición según lo indicado en el
subinciso  (i)  (C)  de  este  inciso,  finalizado  dicho  procedimiento  podrá  concretar  el  Acuerdo  Previo,  si  lo  hubiera,
cualquiera  sea  el número  de  acciones  y/o  títulos  que  haya  adquirido  bajo  el  régimen  de  la  oferta  pública  de
adquisición.  Si  hubiere  fijado  tal  mínimo,  podrá  concretar  el  Acuerdo  Previo  sólo  si  bajo  el  régimen  de  la  oferta
pública de adquisición ha superado dicho mínimo. El acuerdo previo deberá concretarse dentro de los treinta días de
finalizada  la  oferta  pública  de  adquisición,  caso  contrario,  para  poder  concretarlo  será  necesario  repetir  el
procedimiento previsto en este Artículo.

Si no hubiese Acuerdo Previo, el Oferente, en los supuestos y oportunidades indicados previamente en que se podría 
concretar un Acuerdo Previo, podrá adquirir libremente el número de acciones y/o títulos que informó a la Sociedad 
en la comunicación indicada en el subinciso (i) de este inciso, en tanto no haya adquirido dicho número de acciones 
y/o títulos bajo el régimen de la oferta pública de adquisición. 

g)  Transacciones relacionadas: Toda fusión, consolidación u otra forma de combinación que tenga substancialmente los 
mismos efectos (en adelante, en este artículo “la Transacción Relacionada”) que comprenda a la Sociedad y cualquier 
otra persona (en adelante en este artículo “el Accionista Interesado”), que haya realizado previamente una Adquisición 
de control o que tenga para el Accionista Interesado los efectos, en cuanto a la tenencia de acciones clase D, de una 
Adquisición de control, sólo será realizada si la contraprestación que recibirá cada accionista de la Sociedad en 
dicha Transacción Relacionada fuera igual para todos los accionistas y no menor a:

(i)  El precio por acción más alto pagado por o por cuenta de dicho Accionista Interesado con relación a la adquisición

de: 

(A)  Acciones  de  la  clase  del  tipo  a  ser  transferidas  por  los  accionistas  en  dicha  Transacción  Relacionada  (en 
adelante, “La clase”), dentro del período de dos años inmediatamente anterior al primer anuncio público de la 

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     Transacción Relacionada (en adelante, “la Fecha del Anuncio”), o

(B) Acciones de la Clase adquiridas por dicho Accionista Interesado en cualquier Adquisición de control.

En ambos casos según dicho precio sea ajustado con motivo de cualquier división accionaria, dividendo en acciones, 
subdivisión o reclasificación que afecte o esté relacionada a la clase. 

(ii)  El  precio,  cierre  vendedor,  más  alto  durante  el  período  de  treinta  días  inmediatamente  precedente  a  la  fecha  del
anuncio o la fecha en que el Accionista Interesado adquiera acciones de la Clase en cualquier Adquisición de control, 
de  una  acción  de  la  clase  según  su  cotización  en  la  Bolsa  de  Comercio  de  Buenos  Aires,  ajustado  por  cualquier
división accionaria, dividendo en acciones, subdivisión o reclasificación que afecte o esté relacionada a la Clase. 

(iii) Un precio por acción igual al precio de mercado por acción de la Clase determinado según lo indicado en 
el inciso (ii) de esta cláusula multiplicado por la relación entre: (a) el precio por acción más alto pagado por 
el Accionista Interesado o por cuenta del mismo, por cualquier acción de la Clase, en cualquier adquisición
de acciones de la Clase dentro de los dos años inmediatamente precedentes a la Fecha del Anuncio, y (b)
dicho  precio  de  mercado  por  acción  de  la  Clase  en  el  día  inmediatamente  precedente  al  primer  día  del
período de dos años en el cual el Accionista Interesado adquirió cualquier tipo de interés o derecho en una
acción de la Clase. En cada caso el precio será ajustado teniendo en cuenta cualquier subsiguiente división
accionaria, dividendo en acciones, subdivisión o reclasificación que afecte o esté relacionada a la Clase.  

(iv)  El  ingreso  neto  de  la  Sociedad  por  acción  de  la  Clase  durante  los  cuatro  últimos  trimestres  fiscales
completos  inmediatamente  precedentes  a  la  Fecha  del  Anuncio,  multiplicado  por  la  más  alta  de  las
siguientes  relaciones:  la  relación precio/  ingreso  para  ese  período  para  las acciones  de  la Clase  (si lo 
hubiere) o la relación precio/ingreso más alta para la Sociedad en el período de dos años inmediatamente
precedente a la Fecha del Anuncio. Dichos múltiplos serán determinados en la forma común en la cual se 
los computa e informa en la comunidad financiera.

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h)   (6)   Violación de requisitos: Las acciones y títulos adquiridos en violación a lo establecido en los incisos 7 c) a 7 g), 

ambos inclusive, de este artículo, no darán derecho a voto o a cobrar dividendos u otras distribuciones que realice la 
Sociedad y no serán computadas a los fines de determinar el quórum en cualquiera de las asambleas de accionistas 
de la Sociedad, hasta tanto las acciones no sean enajenadas, en el caso de que el adquirente haya obtenido el control 
directo sobre YPF, o hasta tanto el adquirente pierda el control sobre la sociedad controlante de YPF, si la toma de 
control ha sido indirecta. 

i)   (6)   Interpretación: A los efectos de este artículo 7, el término "indirectamente" incluirá a las sociedades controlantes del 
adquirente, las sociedades por él controladas o que resultarían controladas como consecuencia de la Adquisición de 
control, Oferta Pública de Adquisición, Acuerdo Previo, o Transacción Relacionada, según sea el caso, que 
otorgarían a su vez el control de la Sociedad, las sociedades sometidas a control común con el adquirente y a las 
demás personas que actúen concertadamente con el adquirente; asimismo quedarán incluidas las tenencias 
accionarias que una persona posea a través de fideicomisos, certificados de depósito de acciones ("ADR") u otros 
mecanismos análogos. 

(10)  La Sociedad no se encuentra adherida al Régimen Estatutario Optativo de Oferta Pública de Adquisición Obligatoria

previsto por el artículo 24 del Decreto 677/01.

Artículo 8° - Derecho de preferencia 

a)  Reglas  generales:  Los  tenedores  de  acciones  ordinarias  o  preferidas  de  cada  clase  gozarán  del  derecho  de
preferencia en la suscripción de las acciones de la misma clase que se emitan, en proporción a las que posean. Este
derecho deberá ejercerse en las condiciones y dentro del plazo fijados por la Ley y reglamentaciones aplicables. Las
condiciones  de  emisión,  suscripción  e  integración  de  las  acciones  clase  C  podrán  ser  más  ventajosas  para
sus adquirentes que las previstas para el resto de las acciones pero en ningún caso podrán ser más gravosas. Todo
titular  de  un  derecho  de  preferencia,  cualquiera  sea  la  clase  de  acción  que  lo  origina,  podrá  cederlo  a  cualquier
tercero, en cuyo caso la acción objeto de dicho derecho de preferencia se convertirá o consistirá en una acción clase
D. 

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b)  Derecho de acrecer: El derecho de acrecer se ejercerá dentro del mismo plazo fijado para el derecho de preferencia, y

respecto de todas las clases de acciones que no hayan sido inicialmente suscriptas.  A estos efectos: 

(i)  Las  acciones  clase  A  que  no  hayan  sido  suscriptas  en  ejercicio  del  derecho  de  preferencia  por  el  Estado
Nacional  se  convertirán  en  acciones  clase  D  y  serán  ofrecidas  a  los  accionistas  de  dicha  Clase  que  hubieran
manifestado la intención de acrecer con relación a las acciones clase A no suscriptas; 

(ii)  Las  acciones  clase  B  que no  hayan  sido suscriptas  por  Provincias  en  ejercicio  de sus derechos  de preferencia
originales,  por  omisión  de  ejercicio  o  por  cesión  del  mismo, se  asignarán  seguidamente  a  las  Provincias  que 
hayan suscripto acciones clase B y manifestado la intención de acrecer, y el excedente se convertirá en acciones
clase D para ser ofrecidas a los accionistas de dicha clase D que hubieran manifestado la intención de acrecer 
con relación a las acciones clase B no suscriptas;

(iii) Las  acciones  clase  C  que  no  hayan  sido  suscriptas  por  personas  comprendidas  en  el  Programa  de  Propiedad
Participada  en  ejercicio  de  sus  derechos  de  preferencia  originales,  por  omisión de  ejercicio  o  por  cesión  del
mismo,  se  asignarán  a  aquellas  de  las  personas  comprendidas  en  dicho  régimen  que  hayan  suscripto  acciones
clase C y manifestado la intención de acrecer, y el excedente se convertirá en acciones clase D para ser ofrecidas
a  los  accionistas  de  dicha  clase  que  hubieran  manifestado  la  intención  de  acrecer  con  relación  a  las  acciones
clase C no suscriptas; 

(iv) Las  acciones  clase  D  que  no  hubieren  sido  suscriptas  en  ejercicio  de  derechos  de  preferencia  emanados  de
acciones  de  esa  clase  serán  asignadas  a  aquellos  de  los  suscriptores  de  esa  clase  que  hayan  manifestado  la
intención de acrecer; 

(v)  Las  acciones  clase  D remanentes se  asignarán a  los  accionistas  de  las demás  clases  que  hubieren  manifestado

intención de acrecer, en paridad de rango.

c)  Límites: Los derechos de preferencia y de acrecer previstos en los párrafos precedentes existirán sólo en la medida

en que sean 

14

  
 
  
 
 
 
 
 
 
  
exigidos  por  la  legislación  societaria  vigente  en  cada  momento  o  sean  necesarios  para  cumplir  las  disposiciones
aplicables de las Leyes 23.696 y 24.145.

Artículo 9° - Oferta pública y privada. Derogado (4) 

TITULO IV 
OBLIGACIONES NEGOCIABLES, BONOS DE 
PARTICIPACION Y OTROS TITULOS 

Artículo 10° - Títulos emitibles (3) 

a)   Obligaciones negociables: La Sociedad podrá emitir obligaciones negociables, convertibles o no. Cuando fuere 

legalmente necesario que la emisión de obligaciones negociables sea decidida por la asamblea, ésta podrá delegar en el 
Directorio todas o algunas de las condiciones de emisión.

b)   Otros títulos: La Sociedad podrá emitir bonos de preferencia y otros títulos admitidos por la legislación aplicable. Los 
bonos de preferencia otorgarán a sus titulares el derecho de suscripción preferente en los aumentos de capital que se 
decidan en el futuro y hasta el monto que dichos bonos prevean. En la suscripción de dichos bonos y otros títulos 
convertibles, los accionistas tendrán derecho de preferencia en los términos y en los casos previstos en el artículo 8º de 
este Estatuto. 

c)  Conversión a clase D: Todo título convertible emitido por la Sociedad dará derecho a conversión sólo en acciones clase

D. Su emisión deberá ser autorizada por asamblea especial de la clase D.

TITULO V 
DIRECCION Y ADMINISTRACION 

Artículo 11° - Directorio 

a) 

(4) (5) (14) Integración: La dirección y administración de la Sociedad estará a cargo de un directorio integrado por un 
número de once (11) a veintiún (21) directores titulares, según lo determine la Asamblea, los que serán designados con 
mandato entre 1 y 3 ejercicios según lo determine la Asamblea en cada caso, pudiendo ser reelegidos indefinidamente, 
sin perjuicio de lo establecido por el inciso e) de este artículo.

15

  
 
  
 
 
 
 
 
 
 
 
 
 
  
  
b)   Directores suplentes: Cada clase de acciones designará un número de directores suplentes igual o menor al de titulares 
que le corresponda designar. Los directores suplentes llenarán las vacantes que se produzcan dentro de su respectiva 
clase en el orden de su designación cuando tal vacante se produzca, sea por ausencia, renuncia, licencia, incapacidad, 
inhabilidad o fallecimiento, previa aceptación por el directorio de la causal de sustitución cuando ésta sea temporaria.

c) (4) Designación:  Los  directores  serán  designados  por  voto  mayoritario  dentro  de  cada  una  de  las  clases  de  acciones

ordinarias, de la siguiente manera: 

(i)      la clase A elegirá un director titular y un suplente mientras exista al menos una acción clase A; 

(ii)     la designación del resto de los directores titulares y suplentes (que en ningún caso será menor de seis titulares y
un número igual o menor de suplentes) corresponderá a la clase D. Las clases B y C votarán conjuntamente con
las acciones clase D en la asamblea especial de ésta última convocada para la elección de Directores;

(iii)    en  las  asambleas  especiales  de  clase  D  convocadas  para  la  elección  de  directores  se  podrá  votar  por  voto
acumulativo  con  arreglo  a  las previsiones  del  artículo  263  de  la  Ley  19.550,  incluso  cuando  a  ella  concurran
accionistas tenedores de acciones A, B ó C conforme a lo previsto anteriormente. 

d)  Ausencia de una clase: Si no hubiere ninguna acción de una determinada clase con derecho a elegir directores de clase, 
presente en una asamblea celebrada en segunda convocatoria y convocada para elegir directores, los directores de 
dicha clase serán elegidos por los accionistas de las restantes clases votando conjuntamente como si constituyeran una 
sola clase salvo en caso en que la ausencia de accionistas ocurriera en las asambleas de las clases A, B o C en cuyo 
caso el síndico designado por las acciones clase A o por las acciones clase A, B y C en conjunto, según corresponda 
con arreglo a lo previsto en el Artículo 21 inciso b) procederá a efectuar la designación de directores titulares y 
suplentes de aquella de dichas clases que hubieren estado ausentes.

16

  
  
 
 
 
 
 
  
   
   
   
e) 

f) 

g) 

h) 

(4) (5) Elección escalonada: La elección será por el plazo que establezca la Asamblea según lo previsto en el art. 11 inc. 
a), salvo cuando se elijan directores para completar el mandato de los reemplazados.

Nominación de candidatos: En cada asamblea que deba elegir directores para la clase D, todo accionista, o grupo de 
accionistas de la clase D que posea más del tres por ciento (3%) del capital representado por acciones clase D, podrá 
requerir que se envíe a todos los accionistas de esa clase la lista de candidatos que ese accionista o grupo de accionistas 
propondrá a la asamblea de dicha clase para su elección. En el caso de bancos depositarios que tengan acciones 
registradas a su nombre, esta regla se aplicará con respecto a los beneficiarios. Igualmente, el directorio podrá 
proponer candidatos a directores a ser electos por las asambleas de las clases respectivas, cuyos nombres se 
comunicarán a todos los accionistas junto con las listas propuestas por los accionistas mencionados en primer término. 
Las reglas anteriores no impedirán a ningún accionista presente en la asamblea proponer candidatos no incluidos en las 
propuestas circularizadas por el directorio. No podrá efectuarse ninguna propuesta de elección de directores para 
ninguna de las clases, antes del acto de la asamblea o en el curso de la misma, sin presentar a la Sociedad prueba 
escrita de la aceptación del cargo por los candidatos propuestos.

Forma de la elección: Sin perjuicio de lo establecido sobre voto acumulativo por el subinciso (vi) del inciso (c) de este 
Artículo la elección de directores de la clase D se efectuará por lista siempre que ningún accionista lo objete; en caso 
contrario, se efectuará individualmente. Se declarará electa a la lista o persona, según el caso, que obtenga la mayoría 
absoluta de las acciones clase D presentes en la asamblea; si ninguna lista obtuviera tal mayoría, se realizará una nueva 
votación en la que participarán las dos listas o personas más votadas, considerándose electa la lista o persona que en tal 
votación obtenga la mayor cantidad de votos.

Remoción: Sujeto a los requisitos de quórum aplicables, cada clase, por mayoría de las acciones de la clase presente en 
la asamblea, podrá remover a los directores por ella elegidos siempre que la remoción haya sido incluida en el orden 
del día. 

17

  
  
 
 
 
  
Artículo 12° - Garantía (11) 

Los directores titulares deben constituir, cada uno de ellos, una garantía de diez mil pesos ($ 10.000) o su equivalente, como 
mínimo, la que podrá consistir en bonos, títulos públicos o sumas de moneda nacional o extranjera depositados en entidades 
financieras  o  cajas  de  valores,  a  la  orden  de  la  sociedad,  o  en  fianzas  o  avales  bancarios  o  seguros  de  caución  o  de 
responsabilidad  civil  a favor  de  la  sociedad,  cuyo costo  deberá  ser soportado  por  cada  director; en  ningún  caso  procederá 
constituir garantía mediante el ingreso directo de fondos a la caja social. Cuando la garantía consista en depósito de bonos, 
títulos  públicos  o  sumas  de  moneda  nacional  o  extranjera,  las  condiciones  de  su  constitución  deberán  asegurar  su 
indisponibilidad mientras esté pendiente el plazo de prescripción de eventuales acciones de responsabilidad. Los directores 
suplentes  solamente  deberán  constituir  la  garantía  aludida  en  caso  de  asumir  como  titulares  en  reemplazo  de  un  director 
titular saliente para completar el período o períodos que correspondan. 

Artículo 13° - Vacantes (4)  (11) 

Los  síndicos  podrán  designar  directores,  en  caso  de  vacancia,  cuyo  mandato  se  extenderá  hasta  la  elección  de  nuevos 
directores por la asamblea. Corresponderá al síndico designado por las acciones clase A nombrar a un director por la clase A, 
después de consultar con el accionista clase A, y a los síndicos designados por las acciones clase D nombrar a los directores 
por esa clase. 

Artículo 14° - Remuneración (3) 

a)  Miembros  no  ejecutivos:  Las  funciones  de  los  miembros  no  ejecutivos  del  directorio  serán  remuneradas  según  lo
resuelva  anualmente  la  asamblea  ordinaria  en  forma  global  y  se  repartirá  entre  ellos  en  forma  igualitaria,  y  entre  sus
suplentes  en  proporción  al  tiempo  que  reemplazaron  a  esos  titulares.  La  asamblea  autorizará  los  montos  que  podrán
pagarse a cuenta de dichos honorarios durante el ejercicio en curso, sujeto a ratificación por la asamblea que considerara
dicho ejercicio. 

b)  (3) Miembros ejecutivos: Los directores de la Sociedad que cumplan funciones ejecutivas, técnico-administrativas o 

comisiones especiales recibirán una remuneración por dichas funciones o comisiones de nivel acorde con el vigente en el 
mercado, que será fijada por el Directorio, con la abstención de los nombrados. Estas

18

 
 
 
 
 
 
 
 
  
remuneraciones, juntamente con las de la totalidad del Directorio, estarán sujetas a ratificación por la asamblea según el 
régimen del artículo 261 de la Ley 19.550. 

c)  Regla general: Las remuneraciones de los directores establecidas por los incisos a) y b) anteriores deberán respetar los

límites fijados por el Artículo 261 de la Ley 19.550, salvo el caso previsto en el último párrafo de dicho artículo.

Artículo 15º - Reuniones (3) (4) 

El Directorio se reunirá, como mínimo, una vez por trimestre, sin perjuicio de que el Presidente del Directorio, o quien lo 
reemplace, lo convoque cuando lo considere conveniente. Asimismo, el Presidente del Directorio o quien lo reemplace, debe 
citar  al  Directorio  cuando  lo  solicite  cualquiera  de  los  directores.  La  convocatoria  se  hará,  en  este  último  caso,  por  el 
Presidente  del  Directorio,  para  llevar  a  cabo  la  reunión  dentro  del  quinto  día  de  recibido  el  pedido;  en  su  defecto,  la 
convocatoria podrá ser efectuada por cualquiera de los directores. Las reuniones de Directorio deberán ser convocadas por 
escrito con indicación del orden del día, pero podrán tratarse temas no incluidos en el orden del día, si se hubieran originado 
con posterioridad y tuvieran carácter urgente. 

Artículo 16° - Quórum y mayorías (3) (9) 

El  Directorio  podrá  funcionar  con  los  miembros  presentes,  o  comunicados  entre  sí  por  otros  medios  de  transmisión 
simultánea de sonido, imágenes o palabras. El Directorio funcionará con la presidencia del Presidente del Directorio o quien 
lo  reemplace,  pudiendo  delegarse  la  firma  del  acta  por  parte  de  aquellos  que  se  encuentren  a  distancia  a  los  miembros 
presentes. El quórum se constituirá con la mayoría absoluta de los miembros que lo integren, computándose la asistencia de 
los miembros participantes, presentes o comunicados entre sí a distancia. Se dejará constancia en el Acta de la asistencia y la 
participación  de  los  miembros  presentes  y  de  los  miembros  a  distancia.  En  caso  de  que  en  una  reunión  convocada 
regularmente, una hora después de la fijada en la convocatoria no se hubiese alcanzado quórum, el Presidente del Directorio 
o quien lo reemplace podrá invitar al o los suplentes de las clases correspondientes a los ausentes a incorporarse a la reunión 
hasta alcanzar el quórum mínimo o convocar la reunión para otra fecha. No obstante, en caso de que las ausencias no afecten 
el quórum, el Directorio podrá invitar a los suplentes de las clases correspondientes a  

19

  
 
  
 
 
 
 
  
  
incorporarse a la reunión. El Directorio adoptará sus resoluciones por el voto de la mayoría de los miembros presentes y a 
distancia.  La  Comisión  Fiscalizadora  dejará  constancia  en  el  Acta  del  Directorio  de  la  regularidad  de  las  decisiones 
adoptadas. El Presidente del Directorio, o quien lo reemplace tendrá, en todos los casos, derecho a voto y doble voto en caso 
de empate. Los directores ausentes podrán autorizar a otro director a votar en su nombre, siempre que existiera quórum, en 
cuyo caso no se incorporarán suplentes en reemplazo de quienes así hubieren autorizado. Las actas serán confeccionadas y 
firmadas dentro de los CINCO (5) días hábiles de celebrada la reunión por los miembros presentes del Directorio y por el 
representante de la Comisión Fiscalizadora. 

Artículo 17° - Facultades del Directorio (3) 

El directorio tendrá amplias facultades para organizar, dirigir y administrar la Sociedad, incluso los que requieren poderes 
especiales a tenor del Artículo 1881 del Código Civil y del Artículo 9 del Decreto Ley 5965/63. Podrá especialmente operar 
con toda clase de bancos, compañías financieras o entidades crediticias oficiales y privadas; dar y revocar poderes especiales 
y  generales,  judiciales,  de  administración  u  otros,  con  o  sin  facultad  de  sustituir;  iniciar,  proseguir,  contestar  o  desistir 
denuncias o querellas penales y realizar todo otro hecho o acto jurídico que haga adquirir derechos o contraer obligaciones a 
la Sociedad, sin otras limitaciones que las que resulten de las leyes que le fueren aplicables, del presente Estatuto y de los 
acuerdos de asambleas, correspondiéndole: 

(i) 

(ii) 

Otorgar poderes generales y especiales -inclusive aquellos cuyo objeto sea lo previsto en el artículo 1881 del Código
Civil-  así  como  aquellos  que  faculten  para  querellar  criminalmente,  y  revocarlos.  A  los  efectos  de  absolver
posiciones,  reconocer  documentos  en  juicios,  prestar  indagatoria  o  declarar  en  procedimientos  administrativos,  el
directorio podrá otorgar poderes para que la Sociedad sea representada por cualquier director, gerente o apoderado,
debidamente instituido. 

Comprar,  vender,  ceder,  donar,  permutar  y  dar  o  tomar  en  comodato  toda  clase  de  bienes  muebles  e  inmuebles,
establecimientos  comerciales  e  industriales,  buques,  artefactos  navales  y  aeronaves,  derechos,  inclusive  marcas,
patentes de invención y derechos de propiedad industrial e intelectual; constituir servidumbres, como sujeto activo o
pasivo, hipotecas, hipotecas navales, prendas o cualquier otro derecho real y, en

20

  
 
 
 
 
  
general, realizar todos los demás actos y celebrar, dentro o fuera del país, los contratos que sean atinentes al objeto 
de la Sociedad, inclusive arrendamientos por el plazo máximo que establezca la ley.

(iii) 

(iv) 

(v) 

(vi) 

(vii) 

Asociarse con otras personas de existencia visible o jurídica, conforme a la legislación vigente y a estos Estatutos y
celebrar con ellas contratos de unión transitoria de empresas, o de agrupaciones de colaboración empresaria.

Tramitar ante las autoridades nacionales o extranjeras todo cuanto sea necesario para el cumplimiento del objeto de
la Sociedad. 

Aprobar la dotación del personal, efectuar nombramientos de los gerentes generales o especiales, fijar sus niveles de
retribuciones, condiciones de trabajo y cualquier otra medida de política de personal y disponer promociones, pases,
traslados y remociones y aplicar las sanciones que pudieren corresponder.

Emitir, dentro o fuera del país, en moneda nacional o extranjera, debentures, obligaciones negociables y otros títulos
de deuda con garantía real, especial o flotante o sin garantía, convertibles o no, conforme las disposiciones legales 
que fueren aplicables y previa resolución de la asamblea competente cuando ello fuere legalmente requerido.

Transar judicial o extrajudicialmente toda clase de cuestiones, comprometer en árbitros o amigables componedores,
promover  y  contestar  toda  clase  de  acciones  judiciales  y  administrativas  y  asumir  el  papel  de  querellante  en
jurisdicción  penal  o  correccional  competente,  otorgar  toda  clase  de  fianzas  y  prorrogar  jurisdicciones  dentro  o
fuera del país, renunciar al derecho de apelar o a prescripciones adquiridas, absolver o poner posiciones en juicio,
hacer novaciones, otorgar quitas o esperas y, en general, efectuar todos los actos que según la ley requieren poder
especial. 

(viii)  Efectuar toda clase de operaciones con bancos y entidades financieras inclusive el Banco de la Nación Argentina, de
la Provincia de Buenos Aires, y demás instituciones bancarias y financieras oficiales, privadas o mixtas del país o
del  exterior.  Celebrar  operaciones  y  contratar  préstamos,  empréstitos  y  otras  obligaciones  con  bancos  oficiales  o
particulares, incluidos los 

21

  
 
  
 
 
 
 
 
  
  
enumerados en la frase anterior, instituciones y organismos internacionales de crédito o de cualquier otra naturaleza,
personas de existencia visible o jurídica, del país o del extranjero.

(ix) 

(x) 

(xi) 

Crear,  mantener,  suprimir,  reestructurar  o  trasladar  las  dependencias  y  sectores  de  la  Sociedad  y  crear  nuevas
administraciones regionales, agencias o sucursales dentro o fuera del país; constituir y aceptar representaciones.

Aprobar  y  someter  a  la  consideración  de  la  asamblea  la  Memoria,  Inventario,  Balance  General  y  Estado  de
Resultados de la Sociedad proponiendo, anualmente, el destino de las utilidades del Ejercicio. 

Aprobar el régimen de contrataciones de la Sociedad, el que asegurará la concurrencia de oferentes, transparencia y
publicidad de procedimientos. 

(xii)  Disponer, si lo considera conveniente y necesario, la creación e integración del Comité Ejecutivo y de otros comités
de Directorio, fijar las funciones y límites de su actuación dentro de las facultades que le otorga este Estatuto y dictar
su reglamento interno. 

(xiii) 

(3) Aprobar, en su caso, la designación del Gerente General y del Subgerente General, de acuerdo con lo dispuesto en 
el artículo 18 (c). 

(xiv) 

(3) Resolver cualquier duda o cuestión que pudiera suscitarse en la aplicación del presente Estatuto, a cuyo efecto el 

Directorio queda investido de amplios poderes sin perjuicio de dar cuenta, oportunamente, a la asamblea.

(xv) 

(3) Dictar su propio reglamento interno. 

(xvi) 

(3) Solicitar y mantener la cotización, en bolsas y mercados de valores nacionales e internacionales, de sus acciones, y 

demás títulos cuando fuere pertinente.

(xvii) 

(3) Aprobar el presupuesto anual, las estimaciones de gastos e inversiones, los niveles de endeudamiento necesario y 

los planes anuales de acción de la Sociedad.

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(xviii)  (3) Ejercer las demás facultades que le confiere este Estatuto. 

La enumeración que antecede es enunciativa y no taxativa y, en consecuencia, el directorio tiene todas las facultades para 
administrar  y  disponer  de  los  bienes  de  la  Sociedad  y  celebrar  todos  los  actos  que  hagan  al  objeto  social,  salvo  las 
excepciones previstas en el presente Estatuto, incluso por apoderados especialmente designados al efecto, a los fines y con la 
amplitud de facultades que, en cada caso particular, se determine. 

Artículo 18º - Presidente y Vicepresidentes del Directorio - Gerente General y Subgerente General. (3) (14) 

a) 

Designación: El Directorio designará de entre los miembros elegidos por las acciones Clase D a un Presidente del
Directorio y podrá designar, en su caso, Vicepresidentes del Directorio. En caso de empate se resolverá por votación
de los directores elegidos por la clase D. El Presidente y los Vicepresidentes del Directorio durarán en sus cargos dos
(2) ejercicios, pero no más allá de su permanencia en el Directorio, pudiendo ser reelegidos indefinidamente en esas
condiciones si fueran electos o reelectos como directores por la clase D. El Presidente del Directorio ejercerá además
el cargo de Gerente General, quien será el principal ejecutivo de la Sociedad y tendrá a su cargo la conducción de las
funciones ejecutivas de la administración. Si el Presidente del Directorio manifestara al ser electo, o posteriormente,
que no desea ejercer el cargo de Gerente General, propondrá a la persona (que podrá o no ser director, pero en el
primer caso deberá haber sido electo por la clase D) que ejercerá dicho cargo, sujeto a la aprobación del Directorio.
El  Presidente  del  Directorio  podrá  retomar  en  cualquier  momento  el  cargo  de  Gerente  General.  El  Presidente  o
Gerente General podrá proponer al Directorio la persona (que podrá o no ser director, pero en el primer caso deberá
haber sido electo por la clase D) que, sujeto a la aprobación del Directorio, ejercerá el cargo de Subgerente General.
El  Subgerente  General  reportará  directamente  al  Gerente  General  y  lo  asistirá  en  el  gerenciamiento  de  las
operaciones de la Sociedad y en las demás funciones ejecutivas que le atribuya o delegue el Gerente General, a quien
reemplazará en caso de ausencia u otro impedimento transitorio.

b) 

Vicepresidentes del Directorio: El Vicepresidente Ejecutivo del Directorio reemplazará al Presidente del Directorio
en  caso  de  renuncia,  fallecimiento,  incapacidad,  inhabilidad,  remoción  o  ausencia  temporaria  o  definitiva  de  este
último. En todos estos 

23

  
 
  
 
 
 
 
  
c) 

d) 

e) 

casos, salvo en el de ausencia temporaria, el Directorio deberá elegir nuevo Presidente del Directorio dentro de los
sesenta días de producida la vacancia y según lo previsto en el inciso a) de este artículo. En caso de que exista más
de  un  Vicepresidente  el  reemplazo  del  Presidente  corresponderá  al  que  viniese  ejercitando  funciones  de
Vicepresidente Ejecutivo, y en segundo lugar al Vicepresidente del Directorio de mayor edad. 

Cuando  uno  de  los  Vicepresidentes  del  Directorio  sea  nombrado  Gerente  General  o  Subgerente  General,  será
denominado “Vicepresidente Ejecutivo”. Cuando el Presidente del Directorio ejerza el cargo de Gerente General, si
el Vicepresidente del Directorio no reviste el carácter de Vicepresidente Ejecutivo lo reemplazará solamente en el
cargo de Presidente del Directorio. 

En caso de empate en la aprobación de la designación del Gerente General o del Subgerente General, se resolverá
por votación de los directores elegidos por la clase D.

A los efectos de su actuación en el extranjero y ante los mercados internacionales de capitales, el Gerente General
será  designado  como  “Chief  Executive  Officer”  y  el  Subgerente  General,  será  designado  como  “Chief  Operating
Officer”. El Gerente General y el Subgerente General, estarán facultados para firmar todos los contratos, papeles de
comercio, escrituras públicas y demás actos públicos o privados que obliguen y/u otorguen derechos a la Sociedad
dentro  de  los  límites  de  los  poderes  que  les  otorgue  el  Directorio,  sin  perjuicio  de  la  representación  legal  que  le
corresponde  al  Presidente  del  Directorio  y  en  su  caso  al  Vicepresidente  Ejecutivo  del  Directorio,  y  de  los  demás
poderes y delegaciones de firma que el Directorio disponga.

Artículo 19º - Facultades del Presidente del Directorio (3) (14) 

Son facultades y deberes del Presidente del Directorio o, a falta de éste, del Vicepresidente Ejecutivo del Directorio, además 
de las que pudieren corresponderles según se prevé en el artículo 18º de este Estatuto: 

(i)  Ejercer la representación legal de la Sociedad conforme a lo dispuesto en el artículo 268 de la Ley 19.550 y cumplir y 

hacer cumplir las leyes, los decretos, el presente Estatuto y las

24

  
  
  
 
 
 
 
 
 
  
  
resoluciones que tomen la asamblea, el Directorio y el Comité Ejecutivo.

(ii)  Convocar y presidir las reuniones del Directorio con voto en todos los casos y doble voto en caso de empate.

(iii) Ejercer, en su caso, el cargo de Gerente General.

(iv) Firmar actos públicos y privados en representación de la Sociedad, sin perjuicio de las delegaciones de firmas o de 
poderes que el Directorio haya conferido y de las facultades que, en su caso, competen al Gerente General y al 
Subgerente General. 

(v)  Ejecutar o hacer ejecutar las resoluciones del Directorio, sin perjuicio de las facultades que competen, en su caso, al 

Gerente General y al Subgerente General o de que el Directorio resuelva asumir por sí la ejecución de una resolución o 
de un tipo de funciones o atribuciones determinadas.

(vi) Presidir las asambleas de la Sociedad. 

Artículo 20° - Comisión Fiscalizadora (14) 

TITULO VI 
FISCALIZACION 

a) 

b) 

Integración: La fiscalización de la Sociedad será ejercida por una comisión fiscalizadora compuesta por un número
de tres (3) a cinco (5) síndicos titulares y  tres (3) a cinco (5) suplentes, según lo determine la Asamblea.

Designación:  Un  síndico  y  un  suplente  serán  designados  por  las  acciones  clase  A  mientras  exista  al  menos  una
acción clase A , y los restantes titulares y suplentes serán designados por las acciones clase D. Los síndicos serán
elegidos  por  el  período  de  un  (1)  ejercicio  y  tendrán  las  facultades  establecidas  en  la  Ley  19.550  y  en  las
disposiciones  legales  vigentes.  La  Comisión  Fiscalizadora  podrá  ser  convocada  por  cualquiera  de  los  síndicos,
sesionará con la totalidad de sus miembros y adoptará las resoluciones por mayoría. El síndico disidente tendrá los
derechos, atribuciones y deberes establecidos en la Ley 19.550.

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c) 

Retribución:  Las  retribuciones  de  los  síndicos  serán  fijadas  por  la  asamblea  ordinaria  dentro  de  los  límites
establecidos por la ley vigente. 

TITULO VII 
ASAMBLEAS GENERALES 

Artículo 21° - Convocatoria 

Se convocará a asamblea ordinaria o extraordinaria, en su caso, para considerar los asuntos establecidos en los artículos 234 
y 235 de la Ley 19.550. Las convocatorias se harán de acuerdo con las disposiciones legales vigentes. 

Artículo 22° - Publicación 

a)  Edictos: Las convocatorias para las asambleas de accionistas, tanto ordinarias como extraordinarias se efectuarán por 

medio de avisos publicados en el Boletín Oficial, en uno de los diarios de mayor circulación general en la República y en 
los boletines de las bolsas y mercados de valores del país en los que coticen las acciones de la Sociedad, por el término y 
con la anticipación establecidos en las disposiciones legales vigentes. El directorio ordenará las publicaciones a efectuar 
en el exterior para cumplir con las normas y prácticas vigentes de las jurisdicciones correspondientes a los mercados y 
Bolsas donde se coticen esas acciones. 

b)  Otros medios de difusión: El directorio podrá emplear los servicios de empresas especializadas en la comunicación con 
accionistas, y recurrir a otros medios de difusión a fin de hacerles llegar sus puntos de vista sobre los temas a someterse 
a las asambleas que se convoquen.  El costo de tales servicios y difusión estará a cargo de la Sociedad. 

Artículo 23º - Representación (3) 

Los  accionistas  pueden  hacerse  representar  en  el  acto  de  la  asamblea  de  la  que  se  trate,  mediante  el  otorgamiento  de  un 
mandato en instrumento privado con su firma certificada en forma judicial, notarial o bancaria. Presidirá las asambleas de 
accionistas el Presidente del Directorio o, en su defecto, la persona que designe la asamblea. 

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Artículo 24° - Celebración 

a)  Quórum y mayorías: Rigen el quórum y mayoría determinados por los artículos 243 y 244 de la Ley 19.550 según la 

clase de asamblea, convocatoria y materias de que se trate, excepto:

(i) 

en  cuanto  al  quórum  de  la  asamblea  extraordinaria  en  segunda  convocatoria  la  que  se  considerará  constituida
cualquiera sea el número de acciones presentes con derecho a voto;

(ii)  para resolver sobre las cuestiones enumeradas en el inciso (c) del Artículo 6 en que se requerirá el voto afirmativo

de las acciones clase A otorgado en Asamblea Especial;

(iii)  para resolver sobre las cuestiones enumeradas en el inciso (b) siguiente en los que se requerirá tanto en primera
como en segunda convocatoria, una mayoría equivalente al 75% (setenta y cinco por ciento) de las acciones con
derecho a voto; 

(iv)  para resolver sobre las cuestiones enumeradas en el inciso (c) siguiente en los que se requerirá tanto en primera
como  en  segunda  convocatoria,  una  mayoría  equivalente  al  66%  (sesenta  y  seis  por  ciento)  de  las  acciones  con
derecho a voto. 

(v) 

para afectar los derechos de una clase de acciones en que se requerirá la conformidad de dicha clase otorgada en
asamblea especial; 

(vi)  para modificar cualquier regla de este Estatuto que exija una mayoría especial, en que se requerirá también a ese

efecto la mayoría especial; y 

(vii)  en los demás casos de que el presente requiera la votación por clase o la conformidad de cada una de las clases.

b)  Las decisiones que requerirán la mayoría especial prevista en el subinciso (iii) del inciso precedente, sin perjuicio de la 
conformidad de la Asamblea Especial de la clase cuyos derechos afecten son: (i) la transferencia al extranjero del 
domicilio social; (ii) el cambio fundamental del objeto social de modo que la actividad definida por el artículo 4° de este 
Estatuto deje de ser la actividad principal o prioritaria de la sociedad, (iii) el retiro de la cotización de las acciones de la 
Sociedad de las Bolsas de Buenos Aires o Nueva York y (iv)  la escisión de la Sociedad en varias sociedades, cuando 

27

 
  
 
 
 
 
 
 
 
 
 
  
como resultado de la escisión se transfieran a las sociedades resultantes el 25% o más de los activos de la sociedad 
incluso cuando ese resultado se alcanzara por sucesivas escisiones operadas en el plazo de un año. 

c)  Las decisiones que requerirán la mayoría especial prevista en el subinciso (iv) del inciso precedente, sin perjuicio de la 

conformidad de la Asamblea Especial de la clase cuyos derechos afecten, son: (i) la modificación del Estatuto en cuanto 
signifique (A) modificar los porcentajes establecidos en los subincisos 7 (c) o 7 (d) o (B) eliminar los requisitos previstos 
en los subincisos 7(e)  (ii) 7 (f) (i) (F) y 7 (f) (v) del artículo 7° en el sentido de que la oferta pública de adquisición 
alcance el 100% de las acciones y títulos convertibles, sea pagadera en dinero efectivo y no sea inferior al precio 
resultante de los mecanismos allí previstos; (ii) el otorgamiento de garantías a favor de accionistas de la Sociedad salvo 
cuando la garantía y la obligación garantizada se hubieran asumido en consecución del objeto social; (iii) la cesación 
total de las actividades de refinación, comercialización y distribución; y (iv) las normas sobre número, nominación, 
elección y composición del Directorio. 

d)  Asambleas especiales: Para las asambleas especiales de clases se seguirán las normas sobre quórum de la asamblea 
ordinaria aplicadas al total de acciones de esa clase en circulación.  Existiendo quórum general de todas las clases 
presentes, cualquier número de acciones de las clases A, B y C constituirán quórum en primera y ulteriores 
convocatorias para las asambleas especiales de dichas clases. Mientras el titular de las acciones de la clase A sea 
únicamente el Estado Nacional, la asamblea especial de esa clase podrá reemplazarse con una comunicación firmada por 
el funcionario público competente para votar dichas acciones.

TITULO VIII 
BALANCES Y CUENTAS 

Artículo 25° - Ejercicio Social 

a)  Fecha: El ejercicio social comenzará el 1 de enero de cada año y concluirá el 31 de diciembre del mismo año, a cuya 
fecha debe confeccionarse el Inventario, el Balance General y la Cuenta de Ganancias y Pérdidas conforme las 
disposiciones legales en vigencia y normas técnicas en la materia.

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b)  Modificación: La asamblea puede modificar la fecha de cierre del ejercicio, inscribiendo la resolución pertinente en el 

Registro Público de Comercio y comunicándola a las autoridades del control.

c)  Destino de las utilidades: Las utilidades líquidas y realizadas se distribuirán conforme al siguiente detalle:

(i)  Cinco por ciento (5%) hasta alcanzar el veinte por ciento del capital social, para el Fondo de Reserva Lega1;

(ii)  Remuneración al directorio y síndicos, en su caso;

(iii)  Dividendos  fijos  de  las  acciones  preferidas,  si  las hubiere  con  esa  preferencia,  y  en  su caso,  los  acumulativos 

impagos; 

(iv)  El  saldo,  en  todo  o  en  parte,  como dividendo  en  efectivo  a  los  accionistas  ordinarios  o  a  Fondos  de  Reserva

facultativos o de previsión o a cuenta nueva o al destino que determine la asamblea. 

d)  Pago de dividendos: Los dividendos deben ser pagados en proporción a las respectivas integraciones, dentro de los 
noventa (90) días de su sanción y el derecho a su percepción prescribe en favor de la Sociedad a los tres (3) años 
contados desde que fueran puestos a disposición de los accionistas.  La asamblea o en su caso el directorio, podrá 
autorizar el pago de dividendos trimestrales, en la medida que no se infrinjan disposiciones aplicables. 

TITULO IX 
LIQUIDACION 

Artículo 26° - Reglas que la rigen 

La liquidación de la Sociedad, originada en cualquier causa que fuere se regirá por lo dispuesto en el capítulo I, sección XIII 
de la Ley 19.550. 

TITULO X 
OTRAS DISPOSICIONES 

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Artículo 27° (3) 

Todas las menciones efectuadas en el presente a “la fecha de este Estatuto” deben entenderse referidas a la fecha en que se 
inscriba en el Registro Público de Comercio, la modificación estatutaria aprobada por el Decreto Nº 1106/93. 

Artículo 28° - Normas especiales para adquisiciones del Estado Nacional (3) 

(A)  Las previsiones de los incisos e) y f) del Artículo 7 (con la única excepción de lo establecido en el apartado (B) de este 
Artículo) se aplicarán a las adquisiciones que directa o indirectamente efectúe el Estado Nacional, por cualquier medio 
o título, de acciones o títulos de la Sociedad, 1) cuando como consecuencia de dicha adquisición el Estado Nacional 
resulte titular de, o ejerza el control sobre, acciones de la Sociedad que, sumadas a sus tenencias anteriores de 
cualquier clase, representen, en total, el 49% o más del capital social; o 2) cuando el Estado Nacional adquiera un 8 % 
o más de las acciones clase D en circulación, mientras retenga acciones de la clase A que alcancen o superen el 5% del 
capital social establecido en el inciso (a) del artículo 6 de estos Estatutos al tiempo del registro de los mismos en el 
Registro Público de Comercio. En caso que las acciones clase A en poder del Estado Nacional representen un 
porcentaje inferior al anteriormente mencionado, no regirá lo previsto en el punto 2) de este Artículo, aplicándose en 
tal caso los criterios generales previstos en el inciso d) del Artículo 7.

(B)  La oferta de compra prevista para los supuestos contemplados en los puntos (1) y (2) del apartado (A) anterior, se 

limitará a la totalidad de las acciones de la clase D.

(C)  Las sanciones previstas en el inciso (h) del Artículo 7 se limitarán, en el caso del Estado Nacional, a la pérdida del 

derecho de voto, cuando la adquisición violatoria de lo previsto en el Artículo 7 y en el presente artículo se haya 
producido a título gratuito o por efecto de una situación de hecho o de derecho en la que el Estado Nacional no haya 
actuado con el fin y la voluntad de adquirir acciones por encima del límite establecido, salvo que como consecuencia 
de dicha adquisición, el Estado Nacional resulte titular de, o ejerza el control sobre, 49% o más del capital social, o 
50% o más de las acciones clase D. En todos los demás casos se

30

 
 
 
 
 
 
  
aplicarán las sanciones contempladas en el inciso h) del Artículo 7 sin limitación.

(D)  A los efectos previstos en este artículo y en los incisos e) y f) del artículo 7º, el término “sociedades” contemplado en 
el inciso (i) del artículo 7º, en lo que resulte pertinente, incluye cualquier tipo de ente u organismo respecto del cual el 
Estado Nacional tenga una vinculación de las características descriptas en el mencionado inciso. El término “títulos” 
empleado en este artículo tendrá el alcance previsto en el inciso d) del artículo 7º. El término “adquisición de control” 
empleado por el artículo 7º se aplica a las adquisiciones previstas por el apartado (A) de este artículo con las 
salvedades, excepciones y régimen establecido en este artículo 28º.

31 

 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
  
Exhibit 1.2 

BY-LAWS OF Y.P.F. SOCIEDAD ANÓNIMA 

ARTICLE I 

NAME, OFFICES AND DURATION 

Section 1 – Name 

The  Corporation  name  is  YPF  SOCIEDAD  ANÓNIMA.  In  the  performance  of  the  activities  incidental  to  its  corporate  purpose  and  in  all 
legal acts carried out thereby, it shall indistinctly use either its full name or the short form YPF S.A. 

Section 2 – Office 

The  legal  domicile  of  the  Corporation  shall  be  located  at  the  City  of  Buenos  Aires,  Argentine  Republic,  notwithstanding  which,  it  may 
establish regional administrations, delegations, branches, agencies or any other kind of representation within the country or abroad. 

Section 3 – Duration 

The  term  of  duration  of  the  Corporation  shall  be  of  one  hundred  (100)  years  as  from  the  registration  of  these  By-laws  with  the  Public 
Registry of Commerce (Registro Público de Comercio). 

ARTICLE II 

PURPOSE 

Section 4 – Purpose                       

The Corporation’s purpose shall be to perform, on its own, through third parties or in association with third parties, the survey, exploration 
and  exploitation  of  liquid  and/or  gaseous  hydrocarbon  fields  and  other  minerals,  as  well  as  the  industrialization,  transportation  and 
commercialization of these products and their direct or indirect by-products, including petrochemical products, chemical products, whether 
derived  from  hydrocarbons  or  not,  and  non-fossil  fuels,  biofuels  and  their  components,  as  well  as  the  generation  of  electrical  energy 
through the use of hydrocarbons, to which effect it may manufacture, use, purchase, sell, exchange, import or export them. It shall also be 
the  Corporation’s  purpose  the  rendering,  on  its  own,  through  a  controlled  company  or  in  association  with  third  parties,  of 
telecommunications  services  in  all  forms  and  modalities  authorized  by  the  legislation  in  force  after  applying  for  the  relevant  licenses  as 
required by the  

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regulatory  framework,  as  well  as  the  production,  industrialization,  processing,  commercialization,  conditioning,  transportation  and 
stockpiling  of  grains  and  products  derived  from  grains,  as  well  as  any  other  activity  complementary  to  its  industrial  and  commercial 
business or any activity which may be necessary to attain its object. To better achieve these purposes, it may set up, become associated 
with or have an interest in any public or private entity domiciled in the country or abroad, within the limits set forth in these By-laws. 

Section 5 – Actions for the achievement of the corporate purpose 

a)  To accomplish its purpose, the Corporation may carry out any kind of legal act or transaction, including those of a financial nature
but excluding intermediation, which are incidental to its corporate purpose, or related thereto, since for the purpose of fulfilling its
purpose, the Corporation has full legal capacity to acquire rights, undertake obligations, and exercise any act not prohibited  by
the laws or these By-laws. 

b)  In particular, the Corporation may: 

(i)  Purchase or otherwise acquire real estate, personal property, livestock, facilities and any other class of rights, titles,
shares  or  securities,  sell,  exchange,  assign  or  dispose  of  them  under  any  instrument,  give  them  as  security  and
encumber  them,  including  pledges,  mortgages  or  any  other  real-property  interests  and  constitute  ease  of  ways 
thereon, become associated with individuals or legal persons, enter into joint ventures and business collaboration
agreements. 

(ii)  Enter  into  any  kind  of  agreement  and  undertake  obligations,  even  loans  or  other  liabilities,  with  official  or  private
banks, whether national or foreign, international credit institutions and/or organizations of any other nature, accept
and  grant  consignments,  commissions  and/or  agency  agreements  and  grant  commercial  credits  related  to  its
business activities. 

(iii)  Issue,  in  the  country  or  abroad,  debentures,  corporate  bonds,  and  other  debt  securities  in  any  currency  with  or

without a security interest, whether special or floating, convertible or not.

ARTICLE III 

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CAPITAL.  SHARES OF STOCK 

Section 6 - Principal 

a) 

b) 

Amount  of  capital  stock:  The  capital  stock  is  fixed  in  the  amount  of  THREE  THOUSAND  NINE  HUNDRED  THIRTY-THREE 
MILLION  ONE  HUNDRED  AND  TWENTY-SEVEN  THOUSAND  NINE  HUNDRED  AND  THIRTY  ($  3,933,127,930)  fully
subscribed  and  paid  in,  represented  by  THREE  HUNDRED  NINTY-THREE  MILLION  THREE  HUNDRED  AND  TWELVE 
THOUSAND SEVEN HUNDRED NINETY-THREE (393,312,793) book-entry shares of common stock, of TEN PESOS ($10.00) 
nominal value each, entitled to one vote per share.

Classes of shares of common stock: The capital stock is divided into four classes of shares of common stock as per the following
detail: 

(i)  Class A shares of stock, only the National Government shall be the holder of class A shares of stock. 

(ii)  Class B shares of stock, originally destined to be acquired by holders of  Consolidation Bonds of Gas and Oil Royalties or 

creditors of the Nation on account of gas and oil royalties. Class B shares of stock  acquired by a holder of such Bonds other 
than a Province or the National Government shall become Class D shares of stock.

(iii)  Class C shares of stock, originally destined by the National Government to the Corporation’s employees under the Shared 
Ownership Program set forth in Act 23,696. Class C shares of stock not purchased by the Corporation’s employees under 
the Shared Ownership Program shall become class A shares of stock; and

(iv)  Class D shares of stock, thus converted due to the transfer of class A, B or C shares of stock to any person in accordance 

with the following rules:

-    Class A shares of stock transferred by the National Government to any person shall become class D shares of stock,
except for transfers to the  Provinces, if previously authorized by law, in which case they shall not change their class.

-  Class B shares of stock that the Provinces transfer to any person other than a Province shall become class D shares of

stock. 

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-  Class C shares of stock that are transferred to third parties beyond the Shared Ownership Program shall become class

D shares of stock. 

-  Class  D  shares  of  stock  shall  not  change  to  other  classes  by  virtue  of  the  subscription  or  acquisition  thereof  by  the
National Government, the Provinces, other public legal entity or by the personnel participating in the Shared Ownership
Program. 

c) 

Class A special rights: The affirmative vote of class A shares of stock, whatever the percentage of capital stock that such class of 
shares represents, shall be required so that the Corporation validly resolves to:

(i)   Determine the merger with another or other companies;

(ii)  Accept that the Corporation, through the acquisition of its shares by third parties, shall become subject to a takeover, 
whether consented or hostile, representing the holding of more than fifty percent (50 %) of the capital stock of the 
Corporation; 

(iii)  Transfer to third parties all of the exploitation rights granted within the framework of Act 17,319, its supplementary and 

regulatory rules, and Act 24,145, for it to determine the full suspension of the exploration and exploitation activities of the 
Corporation; 

(iv)  Determine the voluntary dissolution of the Corporation.

(v)  Transfer the corporate or fiscal domicile of the Corporation outside the Argentine Republic. 

Besides, the prior enactment of a national law will be required to resolve favorably on paragraphs (iii) and (iv) above. 

d) 

e) 

Preferred shares of stock: The Corporation may issue preferred shares with or without voting right, which shall be divided into 
classes A, B, C, and D. The same rules on ownership and conversion set forth in subsection b) above for the same class of 
shares of common stock shall be applied to each class of preferred stock. When preferred shares of stock exercise their voting 
right (whether temporarily or permanently), they shall do so as members, to such effect, of the class they belong to.

Capital Increases: The capital may be increased up to five times its original amount by resolution passed at the regular 
shareholders’ meeting, in accordance with the provisions of section 188 of Act 19,550, such limit being  

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ruled out if the Corporation is authorized to make a public offering of its shares of stock. The regular shareholders’ meeting shall 
establish the nature of the shares to be issued on account of the capital increase, pursuant to the conditions set forth in these By-
laws, it being able to delegate to the Board of Directors the power to set the time of issuance, as well as the determination of the 
payment terms and conditions of the shares, being also empowered to carry out any other delegation authorized by law. The 
issuance of shares of preferred or common stock shall be carried out per classes, respecting the proportion existing among the 
different classes as of the date of issuance, without prejudice to the modifications that may subsequently be derived from the 
exercise of the preemptive and accretion rights, as provided for in section 8 hereof.

Section 7 - Transfer of stock 

a) 

b) 

c) 

Book-entry stocks: Shares shall not be represented by certificates. Instead, they shall be book-entry shares and shall be recorded 
in accounts kept under their holder’s names in the Corporation, commercial banks, investment banks or securities clearing 
houses as authorized by the Board of Directors. Shares of stock shall be indivisible. Should there be co-ownership, the 
representation to exercise the rights or the fulfillment of obligations shall be unified.

Transfer of class A or C shares: Any transfer of class A shares carried out in breach of the provisions of the last paragraph of 
section 8 of Act 24,145, or of class C shares carried out in breach of the rules of the Shared Ownership Program or the relevant 
General Transfer Agreement notified by effective means to the Corporation, shall be null and void and shall not be acknowledged 
by the Corporation. 

Information duty: Any person who shall, directly or indirectly, acquire by any means or instrument, class D shares, or which upon 
transfer shall be converted into class D, or securities of the Corporation of any type that may be convertible into class D shares 
(including, within the meaning of the term “securities”, but without limitation, debentures, corporate bonds, and stock coupons), 
which shall grant control over more than three per cent (3%) of the class D shares, shall notify the Corporation within five (5) days 
as from the acquisition that caused such excess, and report such circumstance to the Corporation, notwithstanding 

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the compliance of the additional measures imposed by the applicable regulations on capital markets for this kind of event. The 
information referred to above shall also include the transaction date, the price, the number of shares purchased and the intent of 
the purchaser to acquire a larger stake or to take over control of the corporate will.  If the purchaser is made up of a group of 
individuals, it shall be bound to identify the members composing the group. The information herein provided for shall be furnished 
in relation to acquisitions carried out after the one informed first, when the limit on the amounts of class D shares indicated in the 
latest information shall be exceeded again in accordance with the provisions hereunder.

d) 

Takeover: If the terms of subsections e) and f) hereof are not complied with, it shall be forbidden to acquire shares or securities of 
the Corporation, whether directly or indirectly, by any means or instrument, (including within the meaning of the term  “securities”, 
but without limitation, debentures, corporate bonds and stock coupons) convertible into shares when, as a consequence of such 
acquisition, the purchaser becomes the holder of, or exercises the control of, class D shares of stock of the Corporation which, in 
addition to his prior holdings of such class (if any) represent, in the aggregate,  FIFTEEN PER CIENT (15%) or more of the 
capital stock, or TWENTY PER CENT (20%) or more of the outstanding class D shares of stock, if the shares that represent such 
TWENTY PER CENT (20%) constitute, at the same time, less than FIFTEEN PER CENT (15%) of the capital stock.

Notwithstanding  the  foregoing,  acquisitions  by  the  holder  or  the  person  exercising  the  control  of  shares  representing  more  than  FIFTY 
PER CENT (50%) of the capital stock shall be excluded from the provisions of subsections e) and f) hereof. 

Acquisitions referred to in this subsection d) are called “Takeovers”. 

e) 

Requirements: The person wishing to a Takeover (hereinafter called “the Bidder”) shall:

(i)     Obtain the prior consent of the special shareholders’ meeting of class A shareholders; and 

(ii)   Arrange a takeover bid for the acquisition of all the shares of all classes of the Corporation and all securities convertible into 

shares. 

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Any decision passed at special shareholders’ meeting of Class A shares regarding the matters provided for in this subsection e) shall be 
final and shall not entitle any of the parties to claim any kind of compensation. 

f) 

Takeover Bid: Each takeover bid shall be conducted in accordance with the procedure herein stipulated and, to the extent that 
applicable regulations in the jurisdictions where the takeover bid takes place and the provisions of the stock exchanges where the 
Corporation’s shares and securities are listed impose additional or stricter requirements than the ones provided hereunder, such 
additional or stricter requirements shall be complied with in the stock exchanges or markets where they are applicable.

(i)   The Bidder shall notify the Corporation in writing about the takeover bid at least fifteen business days in advance to the 

starting date thereof. The Corporation shall be notified about all terms and conditions of any agreement or memorandum of 
understanding that the Bidder might have entered into or might intend to enter into with a holder of shares of the Corporation 
whereby, if such agreement or memorandum of understanding were executed, the Bidder would be in the situation described 
in the first paragraph of subsection d) of this Section (hereinafter called “Prior Agreement”). Such notice shall include the 
following minimum information: 

(A)  The Bidder’s identification, nationality, domicile, and telephone number;

(B)  If the Bidder is made up by a group of persons, the identification and domicile of each Bidder of the group and of the 

managing officer of each person or entity making up the group;

(C)  The consideration offered for the shares of stock and/or securities. If the takeover bid is subject to the condition that a 

certain number of shares be acquired, such minimum number shall be indicated;

(D)  The scheduled expiration date of the takeover bid period, whether it can be extended, and if so, the procedure therefor;

(E)  A statement by the Bidder indicating the exact dates before and after which the shareholders and security holders, who 
subjected them for sale subject to the takeover bid regime, shall be entitled to withdraw them, how the shares and 
securities thus subjected to sale shall be accepted, and in 

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accordance to which the withdrawal of the shares and securities from sale under the takeover bid regime shall be carried 
out; 

(F)  A statement indicating that the takeover bid shall be open to all shareholders and holders of securities convertible into 

shares of stock; 

(G)  Any additional information, including the Bidder’s accounting statements, as the Corporation may reasonably request or 
which may be necessary so as to avoid the above-mentioned notice from leading to wrong conclusions or when the 
information submitted is incomplete or insufficient.

(ii)   The Board of Directors shall call special meeting of class A shares of stock, by any effective means, to be held ten business 
days following the receipt by the Corporation of the notice indicated under paragraph (i), for the purpose of considering the 
approval of the takeover bid, and it shall submit to such meeting its recommendation in that regard. If the meeting is not held 
despite the call, or if it is held but the takeover bid is rejected, the latter shall not be carried out, nor shall the Prior 
Agreement, if any, be executed. 

(iii)  The Corporation shall send by mail to each shareholder or holder of securities convertible into stock, at the Bidder’s cost and 

expense, and with reasonable due diligence, a copy of the notice delivered to the Corporation in accordance with the 
provisions of paragraph (i). The Bidder shall make an advance payment to Corporation of the funds required for such 
purpose. 

(iv)  The Bidder shall send by mail or otherwise deliver, with reasonable due diligence, to each shareholder or holder of securities 
convertible into stock who shall so request, a copy of the notice delivered to the Corporation and shall publish a notice 
containing substantially the information stated in paragraph (i), at least once a week, starting on the date such notice is 
served on the Corporation pursuant to paragraph (i) and ending upon the expiration date of the takeover bid. Subject to the 
applicable legal provisions, this information shall be published in the business section of the major newspapers of the 
Argentine Republic, in the City of New York, U.S.A. and any other city where the shares shall be listed. 

(v)  The consideration for each share of stock or security convertible into stock payable to each shareholder or security holder 

shall be the same, in cash,  

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and shall not be lower than the highest of the following prices of each class D share of stock or security convertible into a 
class D share: 

(A)  the highest price per share or security paid by the Bidder, or on behalf thereof, in relation to any acquisition of class D 
shares of stock or securities convertible into class D shares of stock within the two-year period immediately preceding 
the notice of Takeover, adjusted as a consequence of any division of shares, stock dividend, subdivision or 
reclassification affecting or related to class D shares of stock; or

(B)  The highest closing price, at the seller’s rate, during the thirty-day period immediately preceding such notice, of a class 
D share of stock as quoted by the Buenos Aires Stock Exchange, in each case as adjusted as a consequence of any 
division of shares, stock dividend, subdivision or reclassification affecting or related to class D shares of stock; or

(C)  A price per share equal to the market price per class D share of stock determined as stated in paragraph (B) herein 

multiplied by the ratio between: (a) the highest price per share paid by the Bidder, or on his behalf, for any class D share 
of stock, in any share acquisition of this class within the two-year term immediately preceding the notice date indicated in 
paragraph (i), and (b) the market price for class D share of stock on the day immediately preceding the first day of the 
two-year period in which the Bidder acquired any type of interest or right in a class D share of stock. In each case the 
price shall be adjusted taking into account the subsequent division of shares, stock dividend, subdivision or 
reclassification affecting or related to class D; or

(D)  The Corporation’s net income per class D share during the last four complete fiscal quarters immediately preceding the 

notice date indicated in paragraph (i), multiplied by the higher of the following ratios: the price/income ratio for that period 
for class D shares of stock (if any) or the highest price/income ratio for the Corporation during the two-year period 
immediately preceding the notice date indicated in paragraph (i).  Such multiples shall be determined by applying the 
regular method used by the financial community for computing and reporting purposes. 

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(vi)   The shareholders or security holders that have subjected them to the takeover bid may withdraw them from the bid before 

the date established for the expiration of such bid.

(vii)  The takeover bid shall be open for a minimum term of TWENTY (20) days and a maximum term of THRITY (30) days as 
from the date the bid was authorized by Comisión Nacional de Valores de Argentina (Argentine Securities Exchange 
Commission). 

(viii) The Bidder shall acquire all shares and/or securities convertible into stock that before the expiration date of the takeover bid 
are set on sale in accordance with the regime ruling takeover bids. If the number of such shares or securities is lower than 
the minimum number to which the Bidder conditioned the takeover bid, the Bidder may withdraw it. 

(ix)  If the Bidder has not set a minimum number as a condition to the takeover bid as stated in paragraph (i) (C) of this 

subsection, once this procedure has finished, the Bidder may execute the Prior Agreement, if any, whatever the number of 
shares of stock and/or securities purchased thereby under the regime regulating takeover bids. If he has set that minimum 
number, the Bidder shall execute the Prior Agreement only if the minimum number required under the regime ruling takeover 
bids has been exceeded. The prior agreement shall be executed within thirty days as from the closing of the takeover bid, 
otherwise, it shall be necessary to repeat the procedure provided for in this section to execute it. 

If there existed no Prior Agreement, the Bidder, in the afore-mentioned cases and opportunities where such Prior Agreement 
could be executed, may purchase freely the number of shares of stock and/or securities that he reported to the Corporation 
through the communication set forth in paragraph (i) of this subsection, provided the Bidder has not purchased such number 
of shares of stock and/or securities under the takeover bid regime. 

g) 

Related transactions: Any merger, consolidation or any other combination leading to substantially the same effects (hereinafter 
called “the Related Transaction”) comprising the Corporation or any other person (hereinafter “the Interested Shareholder”) that 
has previously carried out a Takeover, or having 

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for the Interested Shareholder the effects, regarding the holding of class D shares of stock, of a Takeover, shall only be 
performed if the consideration to be received by each shareholder from the Corporation in such Related Transaction is equal for 
all shareholders and not lower than: 

(i)  The highest price per share of stock paid by or on account of such Interested Shareholder in relation to the acquisition of:

(A)  Shares of the class to be transferred by the shareholders in such Related Transaction (hereinafter called “the Class”), 
within the two-year period immediately preceding the first public announcement of the Related Transaction (hereinafter 
called “the Announcement Date”), or

(B)  Shares of the Class purchased by said Interested Shareholder in any Takeover.

In both cases as adjusted by virtue of any stock division, share dividend, subdivision or reclassification affecting or related to 
the class. 

(ii)  The highest closing price, at the seller’s rate, during the thirty-day period immediately preceding the announcement date or 
the date of purchase of the shares of the Class by the Interested Shareholder in any Takeover, of a share of the Class as 
quoted at the Buenos Aires Stock Exchange, adjusted by any division of shares, stock dividend, subdivision or 
reclassification affecting or related to the Class.

(iii)  A price per share equal to the market price of a share of the Class determined as established in subsection (ii) of this section 
multiplied by the ratio between: (a) the highest price per share paid by the Interested Shareholder or on his behalf, for any 
share of the Class, in any acquisition of shares of the Class within the two-year period immediately preceding the 
Announcement Date, and (b) the market price per share of the Class on the day immediately preceding the first day of the 
two-year period in which the Interested Shareholder acquired any type of interest or right in a share of the Class. In each 
case the price shall be adjusted taking into account the subsequent division of shares, stock dividend, subdivision or 
reclassification affecting or related to the Class.

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(iv)  The net income of the Corporation per each share of the Class during the last four complete fiscal quarters immediately 

preceding the Announcement Date, multiplied by the higher of the following ratios: the price / income ratio for that period for 
the shares of stock of the Class (if any) or the highest price / income for the Corporation in the two-year period immediately 
preceding the Announcement Date. Such multiples shall be determined using the regular method used by the financial 
community for their computation and reporting.

Breach  of Requirements:  Shares of stock and securities  acquired  in breach of  the provisions  of subsections  7  c) through 7 g),
both included, of this section, shall not grant any right to vote or collect dividends or other distributions that the Corporation may
carry  out,  nor  shall  they  be  computed  to  determine  the  presence  of  the  quorum  at  any  of  the  shareholders’  meetings  of  the 
Corporation,  until  such  shares  of  stock  are  sold,  in  the  case  the  purchaser  has  obtained  the  direct  control  of  YPF,  or  until  the
purchaser loses the control of the YPF’s parent company, if the takeover has been indirect.

Construction: For the purposes of section 7, the term "indirectly" shall include the purchaser’s parent companies, the companies
controlled by it or that would end up under the control thereof as a consequence of the Takeover, Takeover Bid, Prior Agreement,
or  Related  Transaction,  as  the  case  may  be,  that  would  grant  at  the  same  time  the  control  of  the  Corporation,  the  companies
submitted  to  the  common control of the purchaser and  other persons  acting  jointly  with the purchaser; likewise,  the holdings a
person has through trusts, American Depositary Receipts (“ADR”) or other similar mechanisms shall be included.

h) 

i) 

The Corporation is not adhered to the Optional Statutory Regime for the Mandatory Acquisition of Shares in a Takeover Bid 
(Régimen Estatutario Optativo de Oferta Pública de Adquisición Obligatoria) under the regulations of section 24 of Decree 
677/01. 

Section 8 – Preemptive right 

a) 

General rules: The holders of each class of common or preferred stock shall be entitled to a preemptive right in the subscription 
of the shares of stock of the  

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same class to be issued, pro rata their holdings. This right shall be exercised under the conditions and terms established in the 
applicable Law and regulations. The conditions of issuance, subscription and payment of class C shares of stock may be more 
advantageous for their purchasers than the ones provided for the rest of the shares; however, under no circumstances shall they 
be more onerous. Any preemptive right holder, whatever the class of stock originating it, may assign it to any third party, in which 
case the share of stock entitled to such preemptive right shall become or consist of a class D share of stock. 

b) 

Accretion Right: The accretion right shall be exercised within the same period fixed for the preemptive right, and with respect to 
all classes of shares that have not been initially subscribed.  To such purposes:

(i)  Class A shares that have not been subscribed in exercise of the preemptive right of by the National Government shall be 

converted into class D shares and shall be offered to the shareholders of such Class that have expressed their intention to 
exercise their accretion right with respect to non-subscribed class A shares;

(ii)  Class B shares that have not been subscribed by the Provinces in exercise of their original preemptive rights, for failure to 
exercise such right or due to the assignment thereof, shall be allocated to the Provinces having subscribed class B shares 
and having expressed their intention to exercise their accretion right, and the balance shall be converted into class D shares 
to be offered to class D shareholders who have expressed their intention to exercise their accretion right with respect to non-
subscribed class B shares; 

(iii)  Class C shares that have been subscribed by the persons comprised in the Shared Ownership Program in exercise of their 
original preemptive rights, due to failure to do so or to assignment thereof, shall be assigned to those persons comprised in 
such regime that have subscribed class C shares and have stated their intention to exercise their accretion right, and the 
balance shall be converted into class D shares to be offered to shareholders of that class who have stated their intention to 
exercise their accretion right with respect to non-subscribed class C shares;

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(iv)  Class D shares not subscribed in exercise of the preemptive rights incidental to that class of shares shall be assigned to the 

subscribers of that class who have stated their intention to exercise their accretion right;

(v)  The remaining class D shares shall be assigned to shareholders of other classes who have stated their intention to exercise 

their accretion right. 

c) 

Limits: The preemptive and accretion rights set forth in the preceding paragraphs shall only exist provided they are required by 
the corporate legislation in force at the time or that they are necessary to comply with the applicable provisions of Acts 23,696 
and 24,145. 

Section 9 – Public and private offering. Revoked 

ARTICLE IV 

CORPORATE BONDS, PROFIT SHARING STOCK (“BONOS DE PARTICIPACIÓN”) AND OTHER SECURITIES 

Section 10 – Securities the Corporation may Issue 

a) 

b) 

c) 

Corporate bonds: The Corporation may issue corporate bonds, whether convertible or not. When it is required by law that the 
issuance of corporate bonds be decided by the shareholders’ meeting, said meeting may delegate all or some of the issuance 
conditions to the Board of Directors. 

Other securities: The Corporation may issue preferential right securities (“bonos de preferencia”) and other securities authorized 
by the applicable law. The preferential right securities shall grant their holders the preemptive subscription right in the event of 
capital increases decided in the future and up to the amount that such securities shall allow. In the subscription of such securities 
and other convertible securities, the shareholders shall have the preemptive right under the terms and in the cases established in 
section 8 of these By-laws. 

Conversion into class D: Any convertible security issued by the Corporation shall grant the conversion right only into class D 
shares of stock. Its issuance shall be authorized at a special meeting of class D shareholders. 

ARTICLE V 

ADMINISTRATION AND MANAGEMENT 

Section 11 – Board of Directors 

a) 

Number: The administration and management of the Corporation shall be in the hands of a Board of Directors composed of at 
least eleven (11) and not  

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b)  

c) 

d) 

more than twenty-one (21) regular Directors, as may be decided at the Shareholders' Meeting, who shall be appointed to serve 
for a term of 1 to 3 fiscal years, as may be decided at the Shareholders Meeting in each case, and may be reelected indefinitely, 
notwithstanding the provisions of subsection e) of this section.

 Alternate directors: Each class of shares shall appoint an equal or lower number of alternate directors than the number of regular 
directors it is authorized to appoint. Alternate directors shall fill the vacancies within their respective class in the order of their 
appointment upon the occurrence of such vacancy, whether by absence, resignation, license, incapacity, disability or death, prior 
acceptance by the Board of the grounds for substitution, should it be temporary.

Appointment: Directors shall be appointed by the majority vote within each of the classes of ordinary shares of stock, as indicated 
below: 

(i)  class A shall appoint a regular and an alternate director provided there exists at least one class A share; 

(ii)  The appointment of the other regular and alternate directors (which shall in no case be lower than six regular directors and 
an equal or lower number of alternate directors) shall correspond to class D. Classes B and C shall cast their votes together 
with class D shares at the special meeting of shareholders of such class called for the appointment of Directors;

(iii)  at Class D special meetings of shareholders called for the appointment of directors, directors may be elected by cumulative 
voting in compliance with provisions of section 263 of Act 19,550, even when such meeting is attended by holders of shares 
A, B or C as afore-mentioned. 

Absence of a class: If no shares of a given class entitled to vote in the election of directors of a class of shares are present at a 
meeting held on second call for the appointment of directors, then the directors of such class shall be elected by the shareholders 
of the remaining classes voting jointly as if they belonged to a single class, except when the absence of shareholders shall occur 
at meetings of Class A, B or C shareholders, in which case the statutory auditor elected by class A shares or jointly by classes A, 
B and C, as appropriate pursuant to the  

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provisions of section 21, subsection b), shall appoint the regular and alternate directors of those classes that are absent.

e) 

f) 

g) 

h) 

 Staggered Appointment: Directors shall be appointed for the term decided at the meeting as provided for in section11, subsection 
a), except when directors are appointed to complete the term of office of the directors being replaced. 

Candidate nomination: Each meeting at which directors for class D shares are to be elected, any class D shareholder or group of 
shareholders holding more than three per cent (3%) of the capital represented by class D shares, may request that all 
shareholders of such class be sent a list of the candidates to be proposed by such shareholder or group of shareholders at the 
meeting of such class for the election thereof. In the case of depositary banks having shares registered in their name, these 
provisions shall apply with respect to the beneficiaries. Likewise, the board of directors may propose candidates for the office of 
directors to be elected at the shareholders’ meetings of the respective classes, whose names shall be notified to all shareholders 
together with the lists proposed by the shareholders first above-mentioned. The preceding provisions shall not prevent any 
shareholder present at the meeting from proposing candidates not included in the nominations notified by the Board. No proposal 
for the election of directors for any of the classes may be made, prior to the meeting or during the course thereof, unless the 
written acceptance of the offices by the nominated candidates is presented to the Corporation. 

Manner of election: Notwithstanding the provisions related to cumulative voting set forth in paragraph (vi), subsection c) of this 
Section, class D Directors shall be elected by voting a whole list provided no shareholder shall object thereto; otherwise, it shall 
be carried out individually. The list or person, as the case may be, shall be considered elected when it has obtained the absolute 
majority vote of class D shares of stock present at the meeting. Should no list obtain a majority vote, a new voting shall take place 
in which the two lists or persons receiving the higher number of votes shall participate, and the list or person obtaining the higher 
number of votes shall be deemed elected. 

Removal: Subject to the requirements of applicable quorums, each class, by a majority vote of the shares of the class present at 
the meeting, may remove the  

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directors elected thereby, provided the removal has been included in the agenda.

Section 12 – Performance Bond 

Each Regular Director shall furnish a bond for the amount of at least ten thousand Pesos ($ 10,000) or its equivalent, which may consist of 
securities,  sovereign  bonds  or  amounts  of  money  in  domestic  or  foreign  currencies  deposited  with  financial  institutions  or  securities 
clearing houses, to the order of the Corporation, or sureties or bank guaranties, or surety bonds or third party insurance  to the name of the 
Corporation, which cost shall be borne by each Director; no bond shall be furnished by depositing funds in the corporate safe deposit box. 
When the bond is furnished by depositing securities, sovereign bonds or sums of money in domestic or foreign currencies, the conditions 
under  which  such  deposits  are  made  shall  ensure  their  unavailability  during  the  course  of  any  liability  claims  against  him.  Alternate 
Directors shall only furnish the mentioned bond in the event of taking office in replacement of a regular Director to complete the relevant 
term or terms of office. 

Section 13 - Vacancies 

Statutory auditors may appoint directors in the event vacancies, who shall hold office until the election of new Directors at the shareholders 
meeting. The statutory auditor appointed by Class A shares shall appoint one Director for Class A shareholder, following consultation with 
Class A shareholder, and the statutory auditors appointed by Class D shares shall appoint Directors for such class. 

Section 14 - Remuneration  

a) 

b) 

Non-executive members: The duties of non-executive Board members shall be compensated pursuant to the resolution passed 
annually at the regular meeting in global terms and shall be distributed in equal parts among them, whereas among alternate 
directors, such distribution shall be made pro rata the term during which they replaced such regular members. The meeting shall 
authorize the amounts that may be paid on account of such fees during the current fiscal year, subject to the approval at the 
meeting at which such fiscal year shall be considered.

Executive members: The Corporation directors performing executive, technical and administrative functions or special 
assignments shall receive a  

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remuneration for such duties or assignments which shall be in line with those prevailing in the market, and which shall be fixed by 
the Board, with abstention of the above-mentioned. Such remunerations, together with those of the whole Board, shall be subject 
to the approval of the shareholders’ meeting, pursuant to the system provided for by section 261 of Act. 19,550.

c) 

General rule: Directors’ remunerations set forth in the foregoing subsections a) and b) shall comply with the limits provided for by 
section 261 of Act 19,550, except for the case provided for in the last paragraph of such section. 

Section 15 - Meetings 

The Board shall meet at least once a quarter, and may be called by the Chairman of the Board of Directors, or his replacement, whenever 
he  shall  deem  it  convenient.  Likewise,  the  Chairman  of  the  Board,  or  his  replacement,  shall  call  a  meeting  of  the  Board  at  any  of  the 
director’s request. In this case, the meeting shall be called by Chairman of the Board, and the meeting shall be held within a term of five 
days as from the request receipt; otherwise, the meeting may be called by any of the directors. The Meetings of the Board of Directors 
shall be called by written notice and shall include the agenda. However, items not included in the agenda may be considered in the event 
of urgent matters occurring after the call. 

Section 16 - Quorum and majorities  

At the meetings, the Board may transact business with the members present thereat, or communicated with one another by other means 
of simultaneous transmission of sound, images or words. The Board shall be presided over by the Chairman of the Board of Directors, or 
his replacement, and the signing of the minutes may be delegated by those who attend the meeting from another place to the members 
present at the meeting. The absolute majority of the board members shall constitute a quorum for the transaction of business, considering 
the  attendance  of  participating  and  present  members  as  well  as  those  communicated  with  one  another  from  another  place.  The 
attendance and participation of the members present and of the members attending the meeting from another place shall be entered in the 
minutes.  If  at  a  regularly  called  meeting,  after  one  hour  of  the  time  fixed  in  the  meeting  notice  the  quorum  shall  not  be  present,  the 
Chairman of the Board, or his replacement, may invite the alternate directors of the classes corresponding to those absent at the meeting 
to join the meeting until the  

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minimum quorum shall be present or may call the meeting to another date. Notwithstanding the above, in the event the absences shall not 
affect  the  quorum,  the  board  may  invite  the  alternate  directors  of  the  corresponding  classes  to  join  the  meeting.  The  Board  shall  adopt 
resolutions by the majority vote of the members present at the meeting and of those participating thereat from another place. The Statutory 
Committee shall  register  in the  Board  Minutes  the adoption of resolutions  according to the appropriate procedure. The  Chairman  of the 
Board, or his replacement, shall, in all cases, be entitled to vote and double vote should the ballots result in a tie. Absent directors may 
authorize another director to vote on their behalf, provided the quorum shall be present, in which case no alternate directors shall join the 
meeting in replacement of the directors granting such authorization. Minutes shall be prepared and signed within FIVE (5) business days 
from the date on which the meeting was held by the present members of the Board and by the representative of the Statutory Committee. 

Section 17 – Powers of the Board of Directors 

The Board of Directors shall have wide powers to organize, conduct and manage the affairs of the Corporation, including those powers 
which require the granting of special powers of attorney as provided for in Section 1881 of the Civil Code and Section 9 of Decree Law 
5965/63.  It  may  specifically  operate  with  all  kind  of  banks,  financial  companies  or  public  and  private  credit  institutions;  grant  or  revoke 
special,  general,  judicial,  administrative  or  other  kind  of  powers  of  attorney,  with  or  without  power  of  substitution;  bring  in,  prosecute, 
answer or waive claims or criminal actions, and carry out any other proceedings or legal acts by which the Corporation shall acquire rights 
or assume obligations, with no further restriction than those arising from the applicable laws, these By-laws or the decisions adopted at the 
meetings, being empowered to: 

(i) 

Grant general and special powers of attorney – including those having the purpose set forth in section 1881 of the Civil Code – as 
well as those authorizing to lodge criminal actions, and to revoke them.  For the purposes of filing and answering interrogatories,
acknowledge documents in court proceedings, make statements answering charges at the preliminary investigation proceedings
or declare at administrative proceedings, the 

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(ii) 

(iii) 

(iv) 

(v) 

(vi) 

(vii) 

Board  shall  be  allowed  to  grant  powers  so  that  the  Corporation  be  represented  by  a  duly  appointed  director,  manager,  or
attorney-in-fact. 

Purchase,  sell,  assign,  grant,  exchange  and  give  and  accept  in  gratuitous  bailment  all  kinds  of  real  and  personal  property,
business  and  industrial  facilities,  vessels,  shipping  equipment  and  aircraft,  rights,  including  trade-marks  and  letters  patent  and 
industrial  and  intellectual  property  rights;  enter  into  easement  agreements,  either  as  grantor  or  grantee,  mortgages,  ship
mortgages,  pledges  or  any  other  security  interest  and,  in  general,  carry  out  any  and  all  acts  and  enter  into  all  the  contracts
deemed  convenient  with  respect  to  the  Corporate  purpose,  whether  within  the  country  or  abroad,  including  leases  for  the
maximum term established by law. 

Become associated with individuals or legal persons, in compliance with the legislation in force and these By-laws and enter into 
joint ventures or business collaboration agreements.

Take all the necessary steps before national or foreign authorities for the fulfillment of the Corporation’s purpose.

Approve  staff  appointments,  appoint  general  or  special  managers,  fix  the  compensation  levels  and  working  conditions  thereof,
and  any  other  action  related  to  staff  policy,  decide  promotions,  transfers  and  removals,  and  apply  the  penalties  that  might  be
applicable. 

Issue,  within  the  country  or  abroad,  in  national  or  foreign  currency,  debentures,  corporate  bonds  or  bonds  guaranteed  by  a
security interest, or by a special or floating guarantee or unsecured, whether convertible or not, pursuant to the legal applicable
provisions and with the prior consent of the pertinent shareholders meeting when legally required. 

Make court or out-of-court settlements in all kind of matters, submit to arbitration proceedings, file and answer all kinds of legal 
and administrative complaints and assume the capacity as accuser in the competent criminal or correctional jurisdiction, grant all 
kinds of bonds and extend jurisdictions within the country or abroad, waive the right to appeal and any applicable statutes of 
limitation, file or answer interrogatories in court, make novations, grant debt reductions or grace periods and, in general, perform 
all acts for which the law requires a special power of attorney.

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(viii) 

(ix) 

(x) 

(xi) 

(xii) 

(xiii) 

(xiv) 

(xv) 

(xvi) 

(xvii) 

Carry out all kinds of transactions with banks and financial institutions, including Banco de la Nación Argentina, Banco de la 
Provincia de Buenos Aires, and other official banking and financial institutions, whether private, semi-private existing within the 
country or abroad. Perform transactions and take out loans and other liabilities with official or private banks, including those 
mentioned in the preceding phrase, international credit institutions or agencies or of any other nature, individuals or legal persons 
domiciled in the country or abroad. 

Create,  maintain,  close,  restructure  or  transfer  the  offices  and  divisions  of  the  Corporation  and  create  new  regional
administrations, agencies or branches within the country or abroad; set up and accept representations. 

Approve  and  submit  the  Annual  Report,  Inventory,  General  Balance  Sheet  and  Statement  of  Income  of  the  Corporation  at  the
shareholders’ meeting for the consideration thereof, proposing, on an annual basis, the allocation of the Fiscal Year profits.

Approve  the  contracting  system  of  the  Corporation,  which  shall  ensure  the  participation  of  bidders  as well  as  the  transparency
and publicity of the bidding process. 

Decide, if he shall deem it convenient and necessary, the creation of an executive committee and other committees of the Board, 
determine the functions and performance restrictions thereof within the powers granted by these By-laws and issue the internal 
rules of procedure thereof. 

Approve, if applicable, the appointment of the General Manager and Assistant General Manager, as provided for in section 18 (c).

Resolve all doubts or issues derived from the application of these By-laws, for which purpose the Board of Directors shall be 
vested with ample powers, all of which shall be reported in due time at the shareholders’ meeting. 

Issue its own internal rules of procedure. 

Request and maintain the quotation, on the domestic and foreign stock and security markets, of its shares of stock and other 
securities when deemed necessary. 

Approve the annual budget, expenditure and investment estimates, the necessary borrowing levels and the annual action plan of 
the Corporation. 

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(xviii)  Exercise the other powers granted by these By-laws.

The above list of powers  is  merely illustrative and not restrictive, and therefore, the  Board is vested with all the powers to  manage and 
dispose of the  assets of the  Corporation and to perform  all the  acts for the  best  fulfillment of the  corporate purpose,  save as otherwise 
provided for in these By-laws. Such powers may be exercised by attorneys-in-fact specifically appointed to such end, for the purposes and 
to the extent determined in each particular case. 

Section 18 – Chairman and Vice Chairman of the Board of Directors – General Manager – Assistant General Manager 

a) 

b) 

Appointment: The Board shall appoint a Chairman from among the members elected by Class D shares, and it may appoint, as 
applicable, Vice Chairmen of the Board. In the event of a tie, it shall be decided by the votes cast by the Directors elected by 
Class D. The Chairman and Vice Chairmen of the Board shall hold office for two (2) fiscal years, provided such term shall not 
exceed their respective terms of office, and may be indefinitely reelected under such conditions should they be elected or 
reelected as Directors by Class D. The Chairman of the Board shall also serve as General Manager. He shall be the 
Corporations' chief executive officer and shall be responsible for the executive management functions. Should the Chairman of 
the Board state upon his election, or subsequently thereto, that he does not wish to serve as General Manager, he shall propose 
the person (who may be a Director or not, but in the first case he shall have been elected by Class D shareholders) who shall 
hold such office, subject to the Board’s consent. The Chairman of the Board may resume at any time the position as General 
Manager. The Chairman or the General Manager may propose another person to the Board (who may be a Director or not, but in 
the first case he shall have been elected by Class D) who, subject to the Board’s approval, shall serve as Assistant General 
Manager. The Assistant General Manager shall report directly to the General Manager and shall assist him in the management of 
the corporate affairs as well as in other executive functions assigned or delegated thereto by the General Manager, whom he 
shall replace in case of absence or other interim impediment.

Vice Chairmen of the Board: The Executive Vice Chairman of the Board shall replace the Chairman of the Board in case of 
resignation, death, incapacity,  

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c) 

d) 

e) 

disability, removal or temporary or definite absence of the latter. In all these cases, save in the case of temporary absence, the 
Board shall appoint a new Chairman of the Board within sixty days as from the date in which the vacancy occurred and in 
compliance with the provisions of subsection a) of this section. Should there be more than one Vice Chairman, the Chairman’s 
vacancy shall be filled by the Vice Chairman who has been discharging the functions of the Executive Vice President, and in 
second place by the eldest Vice Chairman. 

When one of the Vice Chairmen is appointed as General Manager or as Assistant General Manager, he shall be called 
“Executive Vice Chairman”. When the Chairman of the Board serves as General Manager, if the Vice Chairman of the Board 
does not serve as Executive Vice Chairman, the latter shall only replace the former in the position as Chairman of the Board.

In case of a tie vote in the approval of the General Manager’s or the Assistant General Manager’s designation, it shall be decided 
by the votes cast by the Directors elected by Class D.

For the purposes of his activities abroad and with respect to the international capital markets, the General Manager shall be 
appointed as “Chief Executive Officer” and the Assistant General Manager shall be designated as “Chief Operating Officer”. The 
General Manager and the Assistant General Manager shall be authorized to sign all contracts, commercial papers, public deeds 
and other public and private documents binding and/or granting rights to the Corporation within the scope of the powers granted 
by the Board, without detriment to the legal representation corresponding to the Chairman of the Board and the Executive Vice 
Chairman of the Board, as the case may be, and notwithstanding the other powers and delegations of executing authority as the 
Board shall decide. 

Section 19 – Powers of the Chairman of the Board 

The Chairman of the Board, or the Executive Vice Chairman of the Board, in absence of the former, shall have the following rights and 
duties, in addition to those established in section 18 of these Bylaws: 

(i)  To exercise the legal representation of the Corporation in compliance with the provisions of section 268 of Act 19,550 and to 

comply with and verify the  

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compliance of the laws, decrees, these By-laws and the resolutions adopted by the shareholders’ meeting, the Board and the 
Executive Committee. 

(ii)  To call and preside over all meetings of the Board of Directors, being entitled to vote in all cases and to cast two votes in 

case of a tie. 

(iii)  To serve, if appropriate, as General Manager.

(iv)  To execute public and private documents in the name and on behalf of the Corporation, without detriment to the delegation of 
executing authority or powers granted by the Board thereto and to the powers which, as the case may be, are vested in the 
General Manager and Assistant General Manager.

(v)  To perform or order the performance of Board resolutions, without detriment to the powers vested, as the case may be, on 
the General Manager and Assistant General Manager, and notwithstanding the fact that the Board may decide to undertake 
on its own behalf the performance of a resolution or functions or powers of a particular nature. 

(vi)  To preside over the shareholders’ meetings of the Corporation.

ARTICLE VI 

SUPERVISION 

Section 20 – Statutory Audit Committee 

a) 

b) 

Number of members: The supervision of the Corporation shall be in the hands of a statutory audit committee composed of three
(3)  to  five  (five)  regular  statutory  auditors  and  three  (3)  to  five  (5)  alternate  statutory  auditors,  as  shall  be  decided  by  the
shareholders meeting. 

Appointment: Class A shares shall appoint one regular and one alternate statutory auditors, provided at last one share of such
class shall exist; the remaining regular and alternate statutory auditors shall be appointed by Class D shares. Statutory auditors
shall serve for one (1) fiscal year and shall have the powers established in Act No. 19,550 and in the legal regulations in force.
Meetings of the Statutory Audit Committee may be called by any of the statutory auditors. The presence of all its members shall
be necessary at such meetings and resolutions shall be adopted by a majority vote. The dissident statutory auditor shall have the
rights, powers and duties established in Act No. 19,550.

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c) 

Compensation: Statutory auditors’ compensation shall be fixed at shareholders’ regular meeting within the limits provided for by 
the legislation in force. 

ARTICLE VII 

REGULAR MEETINGS OF SHAREHOLDERS 

Section 21 – Notice 

Shareholders’ regular or special meetings, as the case may be, shall be called for the purpose of considering the matters established in 
sections 234 and 235 of Act 19,550. Notices of meetings shall be given pursuant to the legal provisions in force. 

Section 22 - Publicity 

a) 

b) 

Public notice: Notice of shareholders’ meetings, whether regular or special, shall be published in the Official Gazette (“Boletín 
Oficial”), in one of the major newspapers in the Argentine Republic and in the reports of the stock and securities exchange 
markets of the country where the shares of the company shall be listed. Such notice shall be published during the term with the 
anticipation provided for by legal provisions in force. The Board shall order the publications to be made abroad in order to comply 
with the rules and practices in force in the jurisdictions corresponding to the stock and exchange markets where the said shares 
shall be listed. 

Other media: The Board may hire the services of companies specialized in the communication with shareholders, and may resort 
to other media in order to inform them about their points of view regarding the items of the agenda to be submitted for 
consideration at the shareholders’ meetings being called. The cost of such services and publicity shall be borne by the 
Corporation. 

Section 23 - Proxies  

Shareholders  may  be  represented  at  any  meeting  by  a  written  proxy  granted  by  private  instrument  with  the  shareholder’s  signature 
certified  either  in  court,  by  a  notary  public  or  a  bank.  The  Chairman  of  the  Board  of  Directors,  shall  preside  over  the  shareholders’ 
meetings, or in his absence, they shall be presided over by the person appointed at the meeting. 

Section 24 – Decision-making 

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a) 

Quorum and majorities: The applicable quorum and majorities are those provided for in sections 243 and 244 of Act 19,550 
according to the nature of the meeting, notice and matters to be considered, except for:

(i)  quorum at special meeting at second call, which shall be deemed validly held whatever the number of shares entitled to vote 

present thereat; 

(ii)  decisions regarding the matters listed in subsection (c) of Section 6, which shall require the affirmative vote of class A shares 

of stock cast at a Special Meeting; 

(iii)  decisions related to the issues listed in subsection (b) below, which shall require, both at meetings on first and second call, a 

majority equivalent to 75% (seventy-five percent) of the shares entitled to vote.

(iv)  decisions regarding the issues listed in subsection (c) below, which shall require both at first and second call a majority 

equivalent to 66% (sixty-six percent) of the shares entitled to vote.

(v)  decisions modifying the rights of a class of shares, which shall require the consent of such class given at special meeting;

(vi)  decisions related to the amendment of any provision of these By-laws requiring a special majority, which shall require to such 

end a special majority; and 

(vii) other cases in which these By-laws require the voting per class or the consent of each of the classes. 

b) 

The decisions requiring the special majority provided for in paragraph (iii) of the preceding subsection, notwithstanding the 
consent given by at the Special Meeting of the class which rights are being modified, are the following: (i) the transfer of the 
corporate office to a foreign country; (ii) a substantial change of the corporate purpose whereby the activity defined in section 4 of 
these By-laws shall cease to be the main or principal activity of the corporation, (iii) the approval to cancel the listing of shares in 
the Buenos Aires and New York Stock Exchanges (iv) the Corporation splitting-up into various companies, if as a result thereof at 
least 25% of the assets of the Corporation are transferred to the resulting companies, even when such percentage shall be 
reached by successive splitting-ups operated in a one-year term.

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c) 

d) 

The decisions that shall require the special majority provided for in paragraph (iv) of the preceding subsection, notwithstanding 
the consent given at the Special Meeting of Shareholders by the class of shares the rights of which are being affected, are the 
following: (i) the amendment of these By-laws when it shall imply (A) modifying the percentages set forth in paragraphs 7 (c) or 7 
(d) or (B) or eliminating the requirements set forth in paragraphs 7(e)  (ii) 7 (f) (i) (F) and 7 (f) (v) of section 7 in the sense that the 
public offering shall reach 100% of the shares of stock and convertible securities, shall be payable in cash and shall not be lower 
than the price resulting form the mechanisms provided therein; (ii) the granting of guarantees in favor of the shareholders of the 
Corporation, except when the guarantee and the guaranteed obligation shall have been assumed in furtherance of the corporate 
purpose; (iii) the complete suspension of all refining, commercialization and distribution activities; and (iv) the amendment of the 
provisions related to the number, nomination, election and structure of the Board of Directors. 

Special shareholders’ meetings: Special meetings of classes of shares shall follow the quorum rules provided for regular 
shareholders’ meetings applied to the total number of outstanding shares of such class. Should the general quorum of all classes 
of shares be present, any number of shares of the classes A, B and C shall constitute quorum at first and subsequent calls for 
special meetings of the said classes. Should the holder of all class A shares be the National Government, the special meeting of 
such class may be replaced by a notice signed by the public officer authorized to vote such shares. 

ARTICLE VIII 

BALANCE SHEETS AND ACCOUNTS 

Section 25 - Fiscal year of the Corporation 

a) 

b) 

Date: the fiscal year of the Corporation shall commence on January 1 of each year and shall close on December 31 of like year. 
The Inventory, General Balance Sheet and Statement of Income shall be drawn up as of that date according to the pertinent legal 
regulations and technical accounting standards.

Modification: The fiscal year closing date may be modified by decision passed at the shareholders’ meeting, which shall be 
registered with the Public Registry of Commerce and notified to the supervisory authorities.

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c) 

d) 

Allocation of profits: The liquid and realized profits shall be allocated as follows:

(i)  Five percent (5%) up to the twenty percent of the capital stock, to the Legal Reserve Fund; 

(ii)  To fees payable to the Board of Directors and statutory auditors, as the case may be;

(iii)  To payment of fixed dividends on preferred shares of stock, if any with such preference, and otherwise the unpaid cumulative 

dividends; 

(iv)  The balance, in whole or in part, to dividends in cash to holders of shares of common stock or to contingency Reserve Funds 

or carried forward to the next fiscal year or to the purpose that the shareholder’s meeting shall determine. 

Dividend payment: Dividends shall be paid pro rata  the respective holdings, within ninety (90) days as from the approval thereof 
and the collection right shall revert to the Company upon the expiration of a three (3) year term as from the date they were made 
available to the shareholders. The shareholders’ meeting, or the Board of Directors, as the case may be, may authorize the 
payment of dividends on a quarterly basis, provided the applicable provisions are not be infringed. 

ARTICLE IX 

LIQUIDATION 

Section 26 – Applicable rules 

Upon the dissolution, liquidation or winding up of the affairs of the Corporation for any cause whatsoever, the pertinent procedures shall be 
carried out in accordance with the provisions of Chapter I, Article XIII of Act Number 19,550. 

ARTICLE X 

OTHER PROVISIONS 

Section 27 

All  references  made  in  these  By-laws  to  the  “date  of  these  By-laws”  shall  mean  the  date  on  which  the  By-laws  amendment  passed  by 
Decree Number 1106/93 is registered with the Public Registry of Commerce. 

Section 28 – Provisions applicable to acquisitions by the National Government 

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(A)  The provisions of subsections e) and f) of Section 7 (with the sole exception of the provisions of paragraph B of the said 
Section) shall apply to all acquisitions made by the National Government, whether directly or indirectly, by any means or 
instrument, of shares or securities of the Corporation, 1) if, as a consequence of such acquisition, the National Government 
becomes the owner, or exercises the control of, the shares of the Corporation, which, in addition to the prior holdings thereof 
of any class of shares, represent, in the aggregate, at least 49% of the capital stock; or 2) if the National Government 
acquires at least 8% of class D outstanding shares of stock, while withholding class A shares of stock amounting at least to 
5% of the capital stock provided for in subsection (a) of section 6 of these By-laws upon registration thereof with the Public 
Registry of Commerce. Should class A shares represent a lower percentage than the one previously mentioned, the 
provisions set forth in point 2) of this Section shall not be applicable. Instead, the general criteria set forth in subsection d) of 
Section 7 shall apply. 

(B)  The purchase offer provided for in the cases contemplated in the preceding points (1) and (2) in A) above shall be limited to 

the aggregate amount of class D shares of stock.

(C)  The penalties provided for in subsection (h) of Section 7 shall be limited, in the case of the National Government, to the loss 
of the right to vote, provided the acquisition in breach of the provisions of Section 7 and this section has occurred gratuitously 
or due to a question of fact or a question of law in which the National Government has acted with the intention and purpose 
of acquiring shares exceeding the established limits, except if, as a consequence of such acquisition, the National 
Government becomes the owner of, or exercises the control over at least 49% of the capital stock, or over at least 50% of 
class D shares of stock. In all other cases, the penalties provided for in subsection h) of Section 7 shall be applied with no 
kind of limitation whatsoever. 

(D)  For the purposes provided for in this section and in subsections e) and f) of section 7, the term “companies” contemplated in 
paragraph (i) of section 7, in its relevant parts, comprises any kind of entity or organization having a relationship with the 
National Government of the nature described in the mentioned subsection. The term “securities” as used in this section shall 
have  

29

  
  
  
  
  
the scope provided for in subsection d) of section 7. The term “Takeover” used in section 7 is applied to the acquisitions 
provided for in paragraph (A) of this section 28.

30  

  
  
  
  
  
CERTIFICATION 

Exhibit 12.1 

I, Sebastián Eskenazi, certify that: 

1.           I have reviewed this annual report on Form 20-F of YPF Sociedad Anónima (the “Company”); 

2.           Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary 
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by 
this report; 

3.           Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material 

respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report; 

4.           The Company’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as 
defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 
15d-15(f)) for the Company and have: 

(a)           Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under 

our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by 
others within those entities, particularly during the period in which this report is being prepared; 

(b)           Designed such internal control over financial reporting, or caused such internal control over financial reporting to be 

designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial 
statements for external purposes in accordance with generally accepted accounting principles; 

(c)           Evaluated the effectiveness of the Company’s disclosure controls and procedures and presented in this report our 
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such 
evaluation; and 

(d)           Disclosed in this report any change in the Company’s internal control over financial reporting that occurred during the 
period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the Company’s internal control 
over financial reporting; and 

  
  
  
  
  
  
  
  
  
  
  
  
  
 
5.           The Company’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial 
reporting, to the Company’s auditors and the audit committee of the Company’s board of directors (or persons performing the equivalent functions): 

(a)           All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting 

which are reasonably likely to adversely affect the Company’s ability to record, process, summarize and report financial information; and 

(b)           Any fraud, whether or not material, that involves management or other employees who have a significant role in the 

Company’s internal control over financial reporting. 

Date: April 14, 2008 

By:

/s/ Sebastián Eskenazi
Name: Sebastián Eskenazi
Title: Chief Executive Officer 

  
  
  
  
 
 
 
  
  
 
 
 
 
 
CERTIFICATION 

Exhibit 12.2 

I, Walter Cristian Forwood, certify that: 

1.           I have reviewed this annual report on Form 20-F of YPF Sociedad Anónima (the “Company”); 

2.           Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a 
material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not 
misleading with respect to the period covered by this report; 

3.           Based on my knowledge, the financial statements, and other financial information included in this report, fairly 

present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods 
presented in this report; 

4.           The Company’s other certifying officer and I are responsible for establishing and maintaining disclosure controls 
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined 
in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and have: 

(a)           Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to 

be designed under our supervision, to ensure that material information relating to the Company, including its consolidated 
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being 
prepared; 

(b)           Designed such internal control over financial reporting, or caused such internal control over financial 

reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial 
reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting 
principles; 

(c)           Evaluated the effectiveness of the Company’s disclosure controls and procedures and presented in this 

report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered 
by this report based on such evaluation; and 

(d)           Disclosed in this report any change in the Company’s internal control over financial reporting that 

occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially 
affect, the Company’s internal control over financial reporting; and 

  
  
  
  
  
  
  
  
  
  
  
  
5.           The Company’s other certifying officer and I have disclosed, based on our most recent evaluation of internal 

control over financial reporting, to the Company’s auditors and the audit committee of the Company’s board of directors (or persons 
performing the equivalent functions): 

(a)           All significant deficiencies and material weaknesses in the design or operation of internal control over 

financial reporting which are reasonably likely to adversely affect the Company’s ability to record, process, summarize and 
report financial information; and 

(b)           Any fraud, whether or not material, that involves management or other employees who have a 

significant role in the Company’s internal control over financial reporting. 

Date: April 14, 2008 

By:

/s/ Walter Cristian Forwood
Name: Walter Cristian Forwood 
Title: Chief Financial Officer 

  
  
  
  
 
 
 
  
 
 
 
 
 
 
CERTIFICATION PURSUANT TO 

18 U.S.C. SECTION 1350, 

AS ADOPTED PURSUANT TO 

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

Exhibit 13.1 

The certification set forth below is being submitted in connection with the Annual Report on Form 20-F for the year ended December 31, 2007 

(the “Annual Report”) for the purposes of complying with Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 (the “Exchange 
Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code. 

Sebastián Eskenazi, the Chief Executive Officer and Walter Cristian Forwood, the Chief Financial Officer of YPF Sociedad Anónima, each 

certifies that, to the best of his knowledge: 

1. 

2. 

the Annual Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and 

the information contained in the Annual Report fairly presents, in all material respects, the financial condition and results of 
operations of YPF Sociedad Anónima. 

Date: April 14, 2008 

By:

/s/ Sebastián Eskenazi
Name: Sebastián Eskenazi
Title: Chief Executive Officer 

By:

/s/ Walter Cristian Forwood
Name: Walter Cristian Forwood 
Title: Chief Financial Officer 

  
  
  
  
  
  
  
  
  
  
 
  
  
 
 
  
  
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO 

18 U.S.C. SECTION 1350, 

AS ADOPTED PURSUANT TO 

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

Exhibit 13.2 

The certification set forth below is being submitted in connection with the Annual Report on Form 20-F for the year ended December 31, 2007 

(the “Annual Report”) for the purposes of complying with Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 (the “Exchange 
Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code. 

Sebastián Eskenazi, the Chief Executive Officer and Walter Cristian Forwood, the Chief Financial Officer of YPF Sociedad Anónima, each 

certifies that, to the best of his knowledge: 

1. 

2. 

the Annual Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and 

the information contained in the Annual Report fairly presents, in all material respects, the financial condition and results of 
operations of YPF Sociedad Anónima. 

Date: April 14, 2008 

By:

/s/ Sebastián Eskenazi
Name: Sebastián Eskenazi
Title: Chief Executive Officer 

By:

/s/ Walter Cristian Forwood
Name: Walter Cristian Forwood 
Title: Chief Financial Officer 

  
  
  
  
  
  
  
  
  
  
 
  
  
 
 
  
 
  
 
  
  
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

Exhibit 23.1 

We consent to the incorporation by reference in the Registration Statement No. 333-149486 on Form F-3 of our report dated April 10, 2008, relating to 
the consolidated financial statements of YPF SOCIEDAD ANONIMA (“YPF”), which report expresses an unqualified opinion and includes an 
explanatory paragraph stating that the accounting principles generally accepted in Argentina vary in certain significant respects from accounting 
principles generally accepted in the United States of America, that the information relating to the nature and effect of such differences is presented in 
Notes 13, 14, and 15 to the consolidated financial statements of YPF, and of our report dated April 10, 2008, relating to the effectiveness of internal 
control over financial reporting, appearing in the Annual Report on Form 20-F of YPF for the year ended December 31, 2007. 

Buenos Aires, Argentina 
April 14, 2008 

Deloitte & Co. S.R.L. 

/s/ Ricardo C. Ruiz 
Ricardo C. Ruiz 
Partner 

  
  
  
 
 
 
 
 
 
 
 
 
 
  
  
 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

Exhibit 23.2 

We consent to the incorporation by reference in the Registration Statement No. 333-149313 on Form F-3 of our report dated April 10, 2008, relating to 
the consolidated financial statements of YPF SOCIEDAD ANONIMA (“YPF”), which report expresses an unqualified opinion and includes an 
explanatory paragraph stating that the accounting principles generally accepted in Argentina vary in certain significant respects from accounting 
principles generally accepted in the United States of America, that the information relating to the nature and effect of such differences is presented in 
Notes 13, 14, and 15 to the consolidated financial statements of YPF, and of our report dated April 10, 2008, relating to the effectiveness of internal 
control over financial reporting, appearing in the Annual Report on Form 20-F of YPF for the year ended December 31, 2007. 

Buenos Aires, Argentina 
April 14, 2008 

Deloitte & Co. S.R.L. 

/s/ Ricardo C. Ruiz 
Ricardo C. Ruiz 
Partner