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Diamondback Energy

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Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

☒

☐

ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934

    For the fiscal year ended December 31, 2020

OR

Commission File Number 001-35700 

Diamondback Energy, Inc.

(Exact Name of Registrant As Specified in Its Charter)

DE

45-4502447

(State or Other Jurisdiction of Incorporation or Organization)

(I.R.S. Employer Identification Number)

500 West Texas
Suite 1200
Midland, TX

(Address of principal executive offices)

79701

(Zip code)

(Registrant Telephone Number, Including Area Code): (432) 221-7400

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

Title of Each Class
Common Stock, par value
$0.01 per share

Trading Symbol(s)

FANG

Name of Each Exchange on Which
Registered

The Nasdaq Stock Market LLC
(NASDAQ Global Select Market)

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☒   No  ☐
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ☐    No  ☒
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  ☒    No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter)
during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the
definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large Accelerated Filer
Non-Accelerated Filer

☒
☐

Accelerated Filer
Smaller Reporting Company
Emerging Growth Company

☐
☐
☐

If  an  emerging  growth  company,  indicate  by  check  mark  if  the  registrant  has  elected  not  to  use  the  extended  transition  period  for  complying  with  any  new  or  revised  financial  accounting
standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section
404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒
Aggregate market value of the voting and non-voting common equity held by non-affiliates of registrant as of June 30, 2020 was approximately $6.6 billion.
As of February 19, 2021, 158,015,647 shares of the registrant’s common stock were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of Diamondback Energy, Inc.’s Proxy Statement for the 2021 Annual Meeting of Stockholders are incorporated by reference in Items 10, 11, 12, 13 and 14 of Part III of this Form 10-K.

    
DIAMONDBACK ENERGY, INC.

FORM 10-K

FOR THE YEAR ENDED DECEMBER 31, 2020

TABLE OF CONTENTS

Glossary of Oil and Natural Gas Terms
Glossary of Certain Other Terms
Cautionary Statement Regarding Forward-Looking Statements

Items 1 and 2. Business and Properties
Item 1A. Risk Factors
Item 1B. Unresolved Staff Comments
Item 3. Legal Proceedings
Item 4. Mine Safety Disclosures

PART I

PART II

Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Item 6. Selected Financial Data
Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations
Item 7A. Quantitative and Qualitative Disclosures about Market Risk
Item 8. Financial Statements and Supplementary Data
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Item 9A. Controls and Procedures
Item 9B. Other Information

Item 10. Directors, Executive Officers and Corporate Governance
Item 11. Executive Compensation
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Item 13. Certain Relationships and Related Transactions, and Director Independence
Item 14. Principal Accountant Fees and Services

PART III

Item 15. Exhibits and Financial Statement Schedules
Item 16. Form 10-K Summary
Signatures

PART IV

Page
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The  following  is  a  glossary  of  certain  oil  and  natural  gas  industry  terms  used  in  this  Annual  Report  on  Form  10-K,  which  we  refer  to  as  this

Annual Report or this report:

GLOSSARY OF OIL AND NATURAL GAS TERMS

3-D seismic

Basin
Bbl or barrel

BOE
BOE/d
Brent

British Thermal Unit or BTU
Completion

Condensate
Crude oil
Developed acreage
Development costs
Differential

Dry hole or dry well

Estimated Ultimate Recovery or EUR

Exploitation

Field

Finding and development costs

Fracturing

Gross acres or gross wells
Horizontal drilling

Horizontal wells

MBbls
MBOE

Mcf
Mcf/d
Mineral interests

MMBtu
MMcf
Net acres or net wells
Net revenue interest

Geophysical  data  that  depict  the  subsurface  strata  in  three  dimensions.  3-D  seismic  typically  provides  a  more
detailed and accurate interpretation of the subsurface strata than 2-D, or two-dimensional, seismic.
A large depression on the earth’s surface in which sediments accumulate.
One stock tank barrel, or 42 U.S. gallons liquid volume, used in this report in reference to crude oil or other liquid
hydrocarbons.
One barrel of oil equivalent, with six thousand cubic feet of natural gas being equivalent to one barrel of oil.
Barrels of oil equivalent per day.

Brent sweet light crude oil.
The quantity of heat required to raise the temperature of one pound of water by one degree Fahrenheit.
The process of treating a drilled well followed by the installation of permanent equipment for the production of
natural gas or oil, or in the case of a dry hole, the reporting of abandonment to the appropriate agency.
Liquid hydrocarbons associated with the production that is primarily natural gas.
Liquid hydrocarbons retrieved from geological structures underground to be refined into fuel sources.
Acreage assignable to productive wells.
Capital costs incurred in the acquisition, exploitation and exploration of proved oil and natural gas reserves.
An adjustment to the price of oil or natural gas from an established spot market price to reflect differences in the
quality and/or location of oil or natural gas.
A well found to be incapable of producing hydrocarbons in sufficient quantities such that proceeds from the sale
of such production exceed production expenses and taxes.
Estimated ultimate recovery is the sum of reserves remaining as of a given date and cumulative production as of
that date.
A  development  or  other  project  which  may  target  proven  or  unproven  reserves  (such  as  probable  or  possible
reserves), but which generally has a lower risk than that associated with exploration projects.
An  area  consisting  of  either  a  single  reservoir  or  multiple  reservoirs,  all  grouped  on  or  related  to  the  same
individual geological structural feature and/or stratigraphic condition.
Capital  costs  incurred  in  the  acquisition,  exploitation  and  exploration  of  proved  oil  and  natural  gas  reserves
divided by proved reserve additions and revisions to proved reserves.
The process of creating and preserving a fracture or system of fractures in a reservoir rock typically by injecting a
fluid under pressure through a wellbore and into the targeted formation.
The total acres or wells, as the case may be, in which a working interest is owned.
A drilling technique used in certain formations where a well is drilled vertically to a certain depth and then drilled
at a right angle with a specified interval.
Wells  drilled  directionally  horizontal  to  allow  for  development  of  structures  not  reachable  through  traditional
vertical drilling mechanisms.
One thousand barrels of crude oil or other liquid hydrocarbons.
One  thousand  barrels  of  crude  oil  equivalent,  determined  using  a  ratio  of  six  Mcf  of  natural  gas  to  one  Bbl  of
crude oil, condensate or natural gas liquids.
One thousand cubic feet of natural gas.
One thousand cubic feet of natural gas per day.
The  interests  in  ownership  of  the  resource  and  mineral  rights,  giving  an  owner  the  right  to  profit  from  the
extracted resources.
One million British Thermal Units.
Million cubic feet of natural gas.
The sum of the fractional working interest owned in gross acres.
An  owner’s  interest  in  the  revenues  of  a  well  after  deducting  proceeds  allocated  to  royalty  and  overriding
interests.

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Net royalty acres
Oil and natural gas properties
Operator
Play

Plugging and abandonment

PUD
Productive well

Prospect

Proved developed reserves

Proved reserves

Proved undeveloped reserves

Recompletion

Reserves

Reservoir

Resource play

Royalty interest

Spacing

Tight formation
Undeveloped acreage

Working interest

WTI

Gross acreage multiplied by the average royalty interest.
Tracts of land consisting of properties to be developed for oil and natural gas resource extraction.
The individual or company responsible for the exploration and/or production of an oil or natural gas well or lease.
A set of discovered or prospective oil and/or natural gas accumulations sharing similar geologic, geographic and
temporal properties, such as source rock, reservoir structure, timing, trapping mechanism and hydrocarbon type.
Refers to the sealing off of fluids in the strata penetrated by a well so that the fluids from one stratum will not
escape into another or to the surface. Regulations of all states require plugging of abandoned wells.
Proved undeveloped.
A well that is found to be capable of producing hydrocarbons in sufficient quantities such that proceeds from the
sale of the production exceed production expenses and taxes.
A specific geographic area which, based on supporting geological, geophysical or other data and also preliminary
economic analysis using reasonably anticipated prices and costs, is deemed to have potential for the discovery of
commercial hydrocarbons.
Reserves  that  can  be  expected  to  be  recovered  through  existing  wells  with  existing  equipment  and  operating
methods.
The  estimated  quantities  of  oil,  natural  gas  and  natural  gas  liquids  which  geological  and  engineering  data
demonstrate  with  reasonable  certainty  to  be  commercially  recoverable  in  future  years  from  known  reservoirs
under existing economic and operating conditions.
Proved  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.
The  process  of  re-entering  an  existing  wellbore  that  is  either  producing  or  not  producing  and  completing  new
reservoirs in an attempt to establish or increase existing production.
Reserves  are  estimated  remaining  quantities  of  oil  and  natural  gas  and  related  substances  anticipated  to  be
economically producible, as of a given date, by application of development projects to known accumulations. In
addition, there must exist, or there must be a reasonable expectation that there will exist, the legal right to produce
or a revenue interest in the production, installed means of delivering oil and natural gas or related substances to
the market and all permits and financing required to implement the project. Reserves should not be assigned to
adjacent reservoirs isolated by major, potentially sealing, faults until those reservoirs are penetrated and evaluated
as  economically  producible.  Reserves  should  not  be  assigned  to  areas  that  are  clearly  separated  from  a  known
accumulation by a non-productive reservoir (i.e., absence of reservoir, structurally low reservoir or negative test
results). Such areas may contain prospective resources (i.e., potentially recoverable resources from undiscovered
accumulations).
A  porous  and  permeable  underground  formation  containing  a  natural  accumulation  of  producible  natural  gas
and/or crude oil that is confined by impermeable rock or water barriers and is separate from other reservoirs.
A set of discovered or prospective oil and/or natural gas accumulations sharing similar geologic, geographic and
temporal properties, such as source rock, reservoir structure, timing, trapping mechanism and hydrocarbon type.
An interest that gives an owner the right to receive a portion of the resources or revenues without having to carry
any costs of development, which may be subject to expiration.
The distance between wells producing from the same reservoir. Spacing is often expressed in terms of acres (e.g.,
40-acre spacing) and is often established by regulatory agencies.
A formation with low permeability that produces natural gas with very low flow rates for long periods of time.
Lease acreage on which wells have not been drilled or completed to a point that would permit the production of
economic quantities of oil and natural gas regardless of whether such acreage contains proved reserves.
An  operating  interest  that  gives  the  owner  the  right  to  drill,  produce  and  conduct  operating  activities  on  the
property  and  receive  a  share  of  production  and  requires  the  owner  to  pay  a  share  of  the  costs  of  drilling  and
production operations.
West Texas Intermediate.

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GLOSSARY OF CERTAIN OTHER TERMS

The following is a glossary of certain other terms that are used in this Annual Report.

ASU
Company

Accounting Standards Update.
Diamondback Energy, Inc., a Delaware corporation, together with its subsidiaries.

Dodd-Frank Act

Dodd-Frank Wall Street Reform and Consumer Protection Act (HR 4173).

U.S. Environmental Protection Agency.
The Company’s Equity Incentive Plan.

The Securities Exchange Act of 1934, as amended.

Financial Accounting Standards Board.

Federal Energy Regulatory Commission.

EPA

Equity Plan

Exchange Act

FASB

FERC

GAAP
2025 Indenture

December 2019 Notes

May 2020 Notes

NYMEX

Rattler

Accounting principles generally accepted in the United States.
The indenture relating to the 2025 Senior Notes, dated as of December 20, 2016, among the Company, the subsidiary guarantors
party thereto and Wells Fargo, as the trustee, as supplemented.
The Company’s 5.375% senior unsecured notes due 2025 in the aggregate principal amount of $800 million.

2025 Senior Notes
December 2019 Notes Indenture The  indenture  relating  to  the  December  2019  Notes  dated  as  of  December  5,  2019,  among  the  Company,  the  subsidiary

guarantors party thereto and Wells Fargo, as the trustee, as supplemented.
The  Company’s  2.875%  senior  unsecured  notes  due  2024  in  the  aggregate  principal  amount  of  $1.0  billion,  the  Company’s
3.250% senior unsecured notes due 2026 in the aggregate principal amount of $800 million and the Company’s 3.500% senior
unsecured notes due 2029 in the aggregate principal amount of $1.2 billion.
The Company’s 4.750% Senior Notes due 2025 in the aggregate principal amount of $500.0 million issued on May 26, 2020
under the December 2019 Notes Indenture (defined above) and the related second supplemental indenture.
New York Mercantile Exchange.

Rattler Midstream LP, a Delaware limited partnership.

Rattler’s general partner

Rattler  Midstream  GP  LLC,  a  Delaware  limited  liability  company;  the  general  partner  of  Rattler  Midstream  LP  and  a  wholly
owned subsidiary of the Company.

Rattler LLC

Rattler LTIP

Rattler Midstream Operating LLC, a Delaware limited liability company and a subsidiary of Rattler.

Rattler Midstream LP Long-Term Incentive Plan.

Rattler Offering

Rattler’s initial public offering.

Ryder Scott

SEC
SEC Prices

Ryder Scott Company, L.P.

Securities and Exchange Commission.
Unweighted arithmetic average oil and natural gas prices as of the first day of the month for the most recent 12 months as of the
balance sheet date.

Securities Act
Senior Notes
Viper
Viper’s general partner
Viper LLC

The Securities Act of 1933, as amended.
The 2025 Senior Notes, the December 2019 Notes and the May 2020 Notes.
Viper Energy Partners LP, a Delaware limited partnership.
Viper Energy Partners GP LLC, a Delaware limited liability company and the General Partner of the Partnership.
Viper Energy Partners LLC, a Delaware limited liability company and a subsidiary of the Partnership.

Wells Fargo

Wells Fargo Bank, National Association.

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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

Various statements contained in this Annual Report are “forward-looking statements” as defined by the SEC. These forward-looking statements
are subject to a number of risks, uncertainties and assumptions, many of which are beyond our control. All statements, other than statements of historical
fact,  regarding  our  strategy,  future  operations,  financial  position,  estimated  revenues  and  losses,  projected  costs,  prospects,  plans  and  objectives  of
management are forward-looking statements. When used in this report, the words “could,” “believe,” “anticipate,” “intend,” “estimate,” “expect,” “may,”
“continue,” “predict,” “potential,” “project” and similar expressions are intended to identify forward-looking statements, although not all forward-looking
statements contain such identifying words.

Forward-looking statements may include statements about:

•

•

•

•

•

•

•

the  volatility  of  realized  oil  and  natural  gas  prices  and  the  extent  and  duration  of  price  reductions  and  increased  production  by  the
Organization of the Petroleum Exporting Counties, or OPEC, members and other oil exporting nations;

the  threat,  occurrence,  potential  duration  or  other  implications  of  epidemic  or  pandemic  diseases,  including  the  ongoing  COVID-19
pandemic, any government responses thereto and logistical challenges and the supply chain disruptions during the ongoing COVID-10
pandemic;

any impact of the ongoing COVID-19 pandemic on the health and safety of our employees;

logistical challenges and the supply chain disruptions;

changes in general economic, business or industry conditions;

conditions in the capital, financial and credit markets and our ability to obtain capital needed for development and exploration operations
on favorable terms or at all;

conditions of the U.S. oil and natural gas industry and the effect of U.S. energy, monetary and trade policies;

• U.S. and global economic conditions and political and economic developments, including the effects of the recent U.S. presidential and

congressional elections on energy and environmental policies;

our ability to execute our business and financial strategies;

exploration and development drilling prospects, inventories, projects and programs;

levels of production;

the impact of reduced drilling activity on our exploration and development drilling prospects, inventories, projects and programs;

regional  supply  and  demand  factors,  delays,  curtailments  delays  or  interruptions  of  production,  and  any  governmental  order,  rule  of
regulation that may impose production limits;

our ability to replace our oil and natural gas reserves;

our ability to identify, complete and effectively integrate acquisitions of properties or businesses, including our pending merger with QEP
Resources, Inc., or QEP, and the Pending Guidon Acquisition (defined below);

competition in the oil and natural gas industry;

title defects in our oil and natural gas properties;

uncertainties with respect to identified drilling locations and estimates of reserves;

the availability or cost of rigs, equipment, raw materials, supplies, oilfield services or personnel;

the impact of severe weather conditions, including the recent winter storms in the Permian Basin, on our production;

restrictions on the use of water;

the availability of transportation, pipeline and storage facilities;

our ability to comply with applicable government laws and regulations and to obtain permits and governmental approvals;

federal and state legislative and regulatory initiatives relating to hydraulic fracturing, including the effect of existing and future laws and
governmental regulations;

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

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•

•

•

•

•

•

•

•

•

•

•

•

our environmental initiatives and targets;

future operating results;

future dividends to our stockholders;

impact of any impairment charges;

lease operating expenses, general and administrative costs and finding and development costs;

operating hazards;

civil unrest, terrorist attacks and cyber threats;

the effects of litigation relating to our pending merger with QEP and any future litigation;

our ability to keep up with technological advancements;

capital expenditure plans;

other plans, objectives, expectations and intentions; and

certain other factors discussed elsewhere in this report.

All  forward-looking  statements  speak  only  as  of  the  date  of  this  report  or,  if  earlier,  as  of  the  date  they  were  made.  We  do  not  intend  to,  and
disclaim  any  obligation  to,  update  or  revise  any  forward-looking  statements  unless  required  by  securities  laws.  You  should  not  place  undue  reliance  on
these forward-looking statements. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is
not  possible  for  our  management  to  predict  all  risks,  nor  can  we  assess  the  impact  of  all  factors  on  our  business  or  the  extent  to  which  any  factor,  or
combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. Although we
believe that our plans, intentions and expectations reflected in or suggested by the forward-looking statements we make in this report are reasonable, we
can give no assurance that these plans, intentions or expectations will be achieved or occur, and actual results could differ materially and adversely from
those anticipated or implied in the forward-looking statements.

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Except  as  noted,  in  this  Annual  Report  on  Form  10-K,  we  refer  to  Diamondback,  together  with  its  consolidated  subsidiaries,  as  “we,”  “us,”
“our,” or “the Company”. This Annual Report includes certain terms commonly used in the oil and natural gas industry, which are defined above in the
“Glossary of Oil and Natural Gas Terms.”

PART I

ITEMS 1 and 2. BUSINESS AND PROPERTIES

Overview

We  are  an  independent  oil  and  natural  gas  company  focused  on  the  acquisition,  development,  exploration  and  exploitation  of  unconventional,
onshore oil and natural gas reserves in the Permian Basin in West Texas. This basin, which is one of the major producing basins in the United States, is
characterized by an extensive production history, a favorable operating environment, mature infrastructure, long reserve life, multiple producing horizons,
enhanced  recovery  potential  and  a  large  number  of  operators.  We  report  operations  in  two  operating  segments:  (i)  the  upstream  segment  and  (ii)  the
midstream operations segment, which includes midstream services and real estate operations.

Our  activities  are  primarily  focused  on  horizontal  development  of  the  Spraberry  and  Wolfcamp  formations  of  the  Midland  Basin  and  the
Wolfcamp and Bone Spring formations of the Delaware Basin, both of which are part of the larger Permian Basin in West Texas and New Mexico. These
formations  are  characterized  by  a  high  concentration  of  oil  and  liquids  rich  natural  gas,  multiple  vertical  and  horizontal  target  horizons,  extensive
production history, long-lived reserves and high drilling success rates.

At December 31, 2020, our total acreage position in the Permian Basin was approximately 449,642 gross (378,678 net) acres, which consisted
primarily of approximately 215,956 gross (194,591 net) acres in the Midland Basin and approximately 192,697 gross (152,587 net) acres in the Delaware
Basin.

In addition, our publicly traded subsidiary Viper Energy Partners LP, which we refer to as Viper, owns mineral interests in the Permian Basin and
Eagle  Ford  Shale.  We  own  Viper  Energy  Partners  GP  LLC,  the  general  partner  of  Viper,  which  we  refer  to  as  Viper’s  general  partner,  and  we  own
approximately 58% of the limited partner interest in Viper.

Further,  our  publicly  traded  subsidiary  Rattler  Midstream  Partners  LP,  which  we  refer  to  as  Rattler,  is  focused  on  ownership,  operation,
development and acquisition of midstream infrastructure assets in the Midland and Delaware Basins of the Permian Basin. We own Rattler Midstream GP
LLC, the general partner of Rattler, which we refer to as Rattler’s general partner, and we own approximately 72% of the limited partner interest in Rattler.

As of December 31, 2020, our estimated proved oil and natural gas reserves were 1,316,441 MBOE (which includes estimated reserves of 99,392
MBOE attributable to the mineral interests owned by Viper). Of these reserves, approximately 62% are classified as proved developed producing. Proved
undeveloped, or PUD, reserves included in this estimate are from 628 gross (559 net) horizontal well locations in which we have a working interest, and 38
horizontal wells in which we own only a mineral interest through our subsidiary, Viper. As of December 31, 2020, our estimated proved reserves were
approximately 58% oil, 22% natural gas liquids and 20% natural gas.

Pending Merger with QEP Resources, Inc.

On  December  20,  2020,  we,  QEP  Resources,  Inc.,  or  QEP,  and  Bohemia  Merger  Sub,  Inc.,  our  wholly  owned  subsidiary,  or  the  Merger  Sub,
entered into an Agreement and Plan of Merger, which is referred to as the merger agreement, under which Merger Sub will be merged with and into QEP,
with QEP surviving as our wholly owned subsidiary, which we refer to as the pending merger. If the pending merger is completed, each QEP stockholder
will  receive,  in  exchange  for  each  share  of  QEP  common  stock  held  immediately  prior  to  the  closing  of  the  pending  merger,  0.050  of  a  share  of  our
common stock.

The completion of the pending merger is subject to satisfaction or waiver of certain customary mutual closing conditions, including (a) the receipt
of  the  required  approvals  from  QEP’s  stockholders,  (b)  the  expiration  or  termination  of  the  waiting  period  under  the  Hart-Scott-Rodino  Antitrust
Improvements  Act  of  1976,  as  amended,  or  the  HSR  Act,  (c)  the  absence  of  any  governmental  order  or  law  that  makes  consummation  of  the  pending
merger illegal or otherwise prohibited, (d) the effectiveness of the registration statement on Form S-4 relating to the shares of our common stock to be
issued  in  connection  with  the  pending  merger,  which  registration  statement  was  declared  effective  by  the  SEC  on  February  10,  2021,  and  (e)  the
authorization for listing of such common stock on the Nasdaq Global Select Market. The obligation of each party to consummate the pending merger is
also  conditioned  upon  the  other  party’s  representations  and  warranties  being  true  and  correct  (subject  to  certain  materiality  exceptions),  the  other  party
having performed in all material respects its obligations

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under the merger agreement, and the receipt of an officer’s certificate from the other party to such effect. For additional information regarding the pending
merger and our expectations relating to the combined company, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of
Operations.”

Pending Guidon Acquisition

On December 18, 2020, we and Diamondback E&P LLC, our wholly owned subsidiary, entered into a definitive, purchase and sale agreement
with Guidon Operating LLC, or Guidon, and certain of Guidon’s affiliates to acquire approximately 32,500 net acres in the Northern Midland Basin and
certain related oil and natural gas assets, which we refer to as the Pending Guidon Acquisition. Consideration for the Pending Guidon Acquisition consists
of  $375  million  in  cash  and  10.6  million  shares  of  our  common  stock,  subject  to  adjustment.  The  Pending  Guidon  Acquisition  is  expected  to  close  on
February 26, 2021.

COVID-19

On  March  11,  2020,  the  World  Health  Organization  characterized  the  global  outbreak  of  the  novel  strain  of  coronavirus,  COVID-19,  as  a
“pandemic.” To limit the spread of COVID-19, governments have taken various actions including the issuance of stay-at-home orders and social distancing
guidelines, causing some businesses to suspend operations and a reduction in demand for many products from direct or ultimate customers. Although many
stay-at-home orders have expired and certain restrictions on conducting business have been lifted, the COVID-19 pandemic resulted in a widespread health
crisis and a swift and unprecedented reduction in international and U.S. economic activity which, in turn, has adversely affected the demand for oil and
natural gas and caused significant volatility and disruption of the financial markets.

In early March 2020, oil prices dropped sharply, and then continued to decline reaching negative levels. During 2020, the average NYMEX WTI
futures contract price for crude oil and condensate was $39.34 per barrel and the average Henry Hub futures contract price for natural gas was $2.13 per
million  British  thermal  units  (MMBtu),  representing  decreases  of  31%  and  16%,  respectively,  from  the  comparable  average  futures  prices  during  2019.
These decreases were the result of multiple factors affecting supply and demand in global oil and natural gas markets, including actions taken by OPEC
members and other exporting nations impacting commodity price and production levels and a significant decrease in demand due to the ongoing COVID-
19  pandemic.  While  OPEC  members  and  certain  other  nations  agreed  in  April  2020  to  cut  production  and  subsequently  extended  such  production  cuts
through  December  2020,  which  helped  to  reduce  a  portion  of  the  excess  supply  in  the  market  and  improve  crude  oil  prices,  they  agreed  to  increase
production by 500,000 barrels per day beginning in January 2021. We cannot predict if or when commodity prices will stabilize and at what levels.

As a result of the reduction in crude oil demand caused by factors discussed above, in 2020, we lowered our 2020 capital budget and production
guidance, curtailed near term production and reduced rig count, all of which may be subject to further reductions or curtailment if the commodity markets
and  macroeconomic  conditions  worsen.  Although  we  have  restored  curtailed  production,  actions  taken  in  response  to  the  COVID-19  pandemic  and
depressed  commodity  pricing  environment  have  had  and  are  expected  to  continue  to  have  an  adverse  effect  on  our  business,  financial  results  and  cash
flows. For additional details, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Overview.”

Given the dynamic nature of the events described above, we cannot reasonably estimate the period of time that the ongoing COVID-19 pandemic,
the depressed commodity prices, the reduced demand for oil and the adverse macroeconomic conditions will persist, the full extent of the impact they will
have on our industry and our business, financial condition, results of operations or cash flows, or the pace or extent of any subsequent recovery.

Our Business Strategy

Our business strategy is to continue to profitably grow our business through the following:

• Grow production and reserves by developing our oil-rich resource base. We intend to drill and develop our acreage base in an effort to
maximize  its  value  and  resource  potential.  Through  the  conversion  of  our  undeveloped  reserves  to  developed  reserves,  we  will  seek  to
increase our production, reserves and cash flow while generating favorable returns on invested capital.

•

Leverage  our  experience  operating  in  the  Permian  Basin.  Our  executive  team,  which  has  an  average  of  over  25  years  of  industry
experience per person and significant experience in the Permian Basin, intends to continue to seek ways to maximize hydrocarbon recovery
by refining and enhancing our drilling and completion techniques. Our focus on efficient drilling and completion techniques is an important
part of the continuous

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drilling program we have planned for our significant inventory of identified potential drilling locations. We believe that the experience of our
executive  team  in  deviated  and  horizontal  drilling  and  completions  has  helped  reduce  the  execution  risk  normally  associated  with  these
complex  well  paths.  In  addition,  our  completion  techniques  are  continually  evolving  as  we  evaluate  and  implement  hydraulic  fracturing
practices that have and are expected to continue to increase recovery and reduce completion costs. Our executive team regularly evaluates our
operating results against those of other operators in the area in an effort to benchmark our performance against the best performing operators
and evaluate and adopt best practices.

•

•

Enhance returns through our low cost development strategy and focus on continuous improvement in operational, capital allocation
and  cost  efficiencies.  Our  acreage  position  is  generally  in  contiguous  blocks  which  allows  us  to  develop  this  acreage  efficiently  with  a
“manufacturing” strategy that takes advantage of economies of scale and uses centralized production and fluid handling facilities. We are the
operator  of  approximately  98%  of  our  acreage.  This  operational  control  allows  us  to  manage  more  efficiently  the  pace  of  development
activities  and  the  gathering  and  marketing  of  our  production  and  control  operating  costs  and  technical  applications,  including  horizontal
development. Our average 84% working interest in our acreage allows us to realize the majority of the benefits of these activities and cost
efficiencies.

Pursue strategic acquisitions with substantial resource potential. We have a proven history of acquiring leasehold positions in the Permian
Basin that have substantial oil-weighted resource potential. Our executive team, with its extensive experience in the Permian Basin, has what
we believe is a competitive advantage in identifying acquisition targets and a proven ability to evaluate resource potential. Most recently, in
December  2020,  we  entered  into  the  merger  agreement  with  QEP  to  acquire  QEP  in  an  all-stock  transaction  valued  at  approximately  $2.2
billion,  including  QEP’s  net  debt  of  $1.6  billion  as  of  September  30,  2020.  The  pending  merger,  upon  closing,  will  add  material  Tier-1
Midland  Basin  inventory.  In  December  2020,  we  also  entered  into  a  definitive  purchase  and  sale  agreement  with  Guidon  and  certain  of
Guidon’s affiliates to acquire approximately 32,500 net acres in the Northern Midland Basin and certain related oil and natural gas assets. We
regularly review acquisition opportunities and intend to pursue acquisitions that meet our strategic and financial targets.

• Maintain financial flexibility. We seek to maintain a conservative financial position. As of December 31, 2020, our borrowing base was set
at  $2.0  billion  and  we  had  $1.98  billion  available  for  borrowing.  As  of  December  31,  2020,  Viper  LLC  had  $84  million  in  outstanding
borrowings,  and  $496  million  available  for  borrowing,  under  its  revolving  credit  facility.  As  of  December  31,  2020,  Rattler  LLC  had  $79
million in outstanding borrowings, and $521 million available for borrowing, under its revolving credit facility.

Our Strengths

We believe that the following strengths will help us achieve our business goals:

• Oil rich resource base in one of North America’s leading resource plays. All of our leasehold acreage is located in one of the most prolific
oil plays in North America, the Permian Basin in West Texas. The majority of our current properties are well positioned in the core of the
Permian Basin. Our production for the year ended December 31, 2020 was approximately 60% oil, 20% natural gas liquids and 20% natural
gas. As of December 31, 2020, our estimated net proved reserves were comprised of approximately 58% oil, 22% natural gas liquids and 20%
natural gas.

• Multi-year drilling inventory in one of North America’s leading oil resource plays. We have identified a multi-year inventory of potential
drilling locations for our oil-weighted reserves that we believe provides attractive growth and return opportunities. At an assumed price of
approximately  $60.00  per  Bbl  WTI,  we  currently  have  approximately  10,413  gross  (6,863  net)  identified  economic  potential  horizontal
drilling  locations  on  our  acreage  based  on  our  evaluation  of  applicable  geologic  and  engineering  data.  These  gross  identified  economic
potential horizontal locations have an average lateral length of approximately 8,200 feet, with the actual length depending on lease geometry
and other considerations. These locations exist across most of our acreage blocks and in multiple horizons. The ultimate inter-well spacing
may  vary  from  these  distances  due  to  different  factors,  which  would  result  in  a  higher  or  lower  location  count.  In  addition,  we  have
approximately 3,610 square miles of proprietary 3-D seismic data covering our acreage. This data facilitates the evaluation of our existing
drilling  inventory  and  provides  insight  into  future  development  activity,  including  additional  horizontal  drilling  opportunities  and  strategic
leasehold acquisitions.

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•

•

Experienced,  incentivized  and  proven  management  team.  Our  executive  team  has  a  proven  track  record  of  executing  on  multi-rig
development drilling programs and extensive experience in the Permian Basin. In addition, our executive team has significant experience with
both drilling and completing horizontal wells in addition to horizontal well reservoir and geologic expertise, which is of strategic importance
as we expand our horizontal drilling activity.

Favorable  operating  environment.  We  have  focused  our  drilling  and  development  operations  in  the  Permian  Basin,  one  of  the  longest
operating  hydrocarbon  basins  in  the  United  States,  with  a  long  and  well-established  production  history  and  developed  infrastructure.  We
believe that the geological and regulatory environment of the Permian Basin is more stable and predictable, and that we are faced with less
operational risks in the Permian Basin as compared to emerging hydrocarbon basins.

• High degree of operational control. We are the operator of approximately 98% of our Permian Basin acreage. This operating control allows
us  to  better  execute  on  our  strategies  of  enhancing  returns  through  operational  and  cost  efficiencies  and  increasing  ultimate  hydrocarbon
recovery  by  seeking  to  continually  improve  our  drilling  techniques,  completion  methodologies  and  reservoir  evaluation  processes.
Additionally, as the operator of substantially all of our acreage, we retain the ability to increase or decrease our capital expenditure program
based  on  commodity  price  outlooks.  This  operating  control  also  enables  us  to  obtain  data  needed  for  efficient  exploration  of  horizontal
prospects.

• Access to midstream infrastructure and gathering and transportation pipelines. Through our publicly traded subsidiary Rattler, we have
secured  access  to  midstream  infrastructure  and  crude  oil  gathering  and  transportation  pipelines  tailored  to  our  expected  production  growth
ramp in order to allow us the operational flexibility to execute on our growth plan. Rattler is the primary provider of midstream services to us
with an acreage dedication that spans a total of approximately 395,000 gross acres across all of Rattler’s service lines and over the core of the
Midland and Delaware Basins.

Our Properties

Location and Land

The  Permian  Basin  area  covers  a  significant  portion  of  western  Texas  and  eastern  New  Mexico  and  is  considered  one  of  the  major  producing
basins  in  the  United  States.  As  of  December  31,  2020,  our  total  acreage  position  in  the  Permian  Basin  was  approximately  449,642  gross  (378,678  net)
acres, which consisted primarily of approximately 215,956 gross (194,591 net) acres in the Midland Basin and approximately 192,697 gross (152,587 net)
acres in the Delaware Basin. We are the operator of approximately 98% of this Permian Basin acreage. In addition, our publicly traded subsidiary Viper
owns  mineral  interests  underlying  approximately  787,264  gross  acres  and  24,350  net  royalty  acres  in  the  Permian  Basin  and  Eagle  Ford  Shale.
Approximately 52% of these net royalty acres are operated by us.

We have been developing multiple pay intervals in the Permian Basin through horizontal drilling and believe that there are opportunities to target
additional  intervals  throughout  the  stratigraphic  column.  We  believe  our  significant  experience  drilling,  completing  and  operating  horizontal  wells  will
allow us to efficiently develop our remaining inventory and ultimately target other horizons that have limited development to date. The following table
presents horizontal producing wells in which we have a working interest in as of December 31, 2020:

Basin

Number of Horizontal Wells

Midland
Delaware
Other

Total

(1)

1,408 
917 
55 
2,380 

(1) Of these 2,380 total horizontal producing wells, we are the operator of 1,694 wells and have a non-operated working interest in 686 additional wells.

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The following table presents the average number of days in which we were able to drill our horizontal wells to total depth specified below during

the year ended December 31, 2020:

Average Days to Total Depth

Midland Basin

7,500 foot lateral
10,000 foot lateral
13,000 foot lateral

Delaware Basin

7,500 foot lateral
10,000 foot lateral
13,000 foot lateral

12 
13 
17 

16 
18 
26 

Further advances in drilling and completion technology may result in economic development of zones that are not currently viable.

Further,  our  subsidiary  Rattler  is  focused  on  ownership,  operation,  development  and  acquisition  of  the  midstream  infrastructure  assets  in  the
Midland and Delaware Basins of the Permian Basin. As of December 31, 2020, Rattler owned and operated 927 miles of crude oil gathering pipelines,
natural  gas  gathering  pipelines  and  a  fully  integrated  water  system  on  acreage  that  overlays  our  seven  core  Midland  and  Delaware  Basin  development
areas. To facilitate the transportation of water and hydrocarbon volumes away from the producing wellhead to ensuring the efficient operations of a crude
oil  or  natural  gas  well,  Rattler’s  midstream  infrastructure  includes  a  network  of  gathering  pipelines  that  collect  and  transport  crude  oil,  natural  gas  and
produced water from our operations in the Midland and Delaware Basins.

As of December 31, 2020, Rattler also owned (i) a 10% equity interest in EPIC Crude Holdings LP, which owns and operates a long-haul crude oil
pipeline from the Permian Basin and the Eagle Ford Shale to Corpus Christi, Texas that is capable of transporting approximately 600,000 Bbl/d, which
began full operations in April 2020 and is referred to as the EPIC pipeline, (ii) a 10% equity interest in Gray Oak Pipeline, LLC, which owns and operates a
long-haul crude oil pipeline that is capable of transporting 900,000 Bbl/d from the Permian Basin and the Eagle Ford Shale to points alongside the Texas
Gulf Coast, including a marine terminal connection in Corpus Christi, Texas, which began full operations in April 2020 and is referred to as the Gray Oak
pipeline, (iii) a 4% equity interest in Wink to Webster Pipeline LLC, which is developing a crude oil pipeline that upon full commercial operations expected
in the fourth quarter of 2021 will be capable of transporting approximately 1,500,000 Bbl/d from origin points at Wink and Midland in the Permian Basin
for  delivery  to  multiple  Houston  area  locations,  (iv)  a  60%  equity  interest  in  OMOG  JV  LLC,  which  operates  approximately  235  miles  of  crude  oil
gathering and regional transportation pipelines and approximately 200,000 barrels of crude oil storage in Midland, Martin, Andrews and Ector Counties,
Texas  and  (v)  a  50%  equity  interest  in  Amarillo  Rattler  LLC,  which  owns  and  operates  the  Yellow  Rose  gas  gathering  and  processing  system  with
estimated total capacity of 40,000 Mcf/d and over 84 miles of gathering and regional transportation pipelines in Dawson, Martin and Andrews Counties,
Texas. For  additional  information  regarding  our  equity  method  investments  as  of  December  31,  2020,  see  Note  10—Equity Method Investments  to  our
consolidated financial statements included elsewhere in this Annual Report.

Rattler also owns and operates certain real estate assets in Midland, Texas including the Fasken Center which has over 421,000 net rentable square

feet within its two office towers.

Area History

Our proved reserves are located in the Permian Basin of West Texas, in particular in the Clearfork, Spraberry, Bone Spring, Wolfcamp, Strawn,
Atoka and Barnett formations. The Spraberry play was initiated with production from several new field discoveries in the late 1940s and early 1950s. It
was eventually recognized that a regional productive trend was present, as fields were extended and coalesced over a broad area in the central Midland
Basin. Development in the Spraberry play was sporadic over the next several decades due to typically low productive rate wells, with economics being
dependent on oil prices and drilling costs.

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The Wolfcamp formation is a long-established reservoir in West Texas, first found in the 1950s as wells aiming for deeper targets occasionally
intersected slump blocks or debris flows with good reservoir properties. Exploration using 2-D seismic data located additional fields, but it was not until the
use  of  3-D  seismic  data  in  the  1990s  that  the  greater  extent  of  the  Wolfcamp  formation  was  revealed.  The  additional  potential  of  the  shales  within  this
formation as reservoir rather than just source rocks was not recognized until very recently.

By  mid-2010,  approximately  half  of  the  rigs  active  in  the  Permian  Basin  were  drilling  wells  in  the  Permian  Spraberry,  Dean  and  Wolfcamp
formations, which we collectively refer to as the Wolfberry play. Since then we and most other operators are almost exclusively drilling horizontal wells in
the  development  of  unconventional  reservoirs  in  the  Permian  Basin.  As  of  December  31,  2020,  we  held  working  interests  in  4,326  gross  (3,401  net)
producing wells and only royalty interests in 4,553 additional wells.

Geology

The  Greater  Permian  Basin  formed  as  an  area  of  rapid  Pennsylvanian-Permian  subsidence  in  response  to  dynamic  structural  influence  of  the
Marathon Uplift and Ancestral Rockies. It is one of the most productive sedimentary basins in the U.S., with established oil and natural gas production
from  several  stacked  reservoirs  of  varying  age  ranges,  most  notably  Permian  aged  sediments.  In  particular,  the  Permian  aged  Wolfcamp,  Spraberry  and
Bone  Spring  Formations  have  been  heavily  targeted  for  several  decades.  First,  through  vertical  comingling  of  these  zones  and,  more  recently,  through
horizontal exploitation of each individual horizon. Prior to deposition of the Wolfcamp, Spraberry and Bone Spring Formations, the area of the present-day
Permian  Basin  was  a  continuous  sedimentary  feature  called  the  Tabosa  Basin.  During  this  time,  Ordovician,  Silurian,  Devonian  and  Mississippian
sediments were laid down in a primarily open marine, shelf setting. However, some time frames saw more restrictive settings that were conducive to the
deposition of organically rich mudstone such as the Devonian Woodford and Mississippian Barnett/Meramec. These formations are important sources and,
more recently, reservoirs within the present-day Greater Permian Basin.

The Spraberry and Bone Spring Formations were deposited as siliciclastic and carbonate turbidites and debris flows along with pelagic mudstones
in a deep-water, basinal environment, while the Wolfcamp reservoirs consist of debris-flow, grain-flow and fine-grained pelagic sediments, which were also
deposited in a basinal setting. The best carbonate reservoirs within the Wolfcamp, Spraberry and Bone Spring are generally found in close proximity to the
Central  Basin  Platform,  while  mudstone  reservoirs  thicken  basin-ward,  away  from  the  Central  Basin  Platform.  The  mudstone  within  these  reservoirs  is
organically rich, which when buried to sufficient depth for thermal maturation, became the source of the hydrocarbons found both within the mudstones
themselves  and  in  the  interbedded  conventional  clastic  and  carbonate  reservoirs.    Due  to  this  complexity,  the  Wolfcamp,  Spraberry  and  Bone  Spring
intervals are a hybrid reservoir system that contains characteristics of both unconventional and conventional reservoirs.

We have successfully developed several hybrid reservoir intervals within the Clearfork, Spraberry/Bone Spring, Wolfcamp and Barnett/Meramec
formations since we began horizontal drilling in 2012. The mudstones and some clastics exhibit low permeabilities which necessitate the need for hydraulic
fracture stimulation to unlock the vast storage of hydrocarbons in these targets.

We possess, or are in the process of acquiring, 3-D seismic data over substantially all of our major asset areas. Our extensive geophysical database
currently  includes  approximately  3,610  square  miles  of  3-D  data.    This  data  will  continue  to  be  utilized  in  the  development  of  our  horizontal  drilling
program and identification of additional resources to be exploited.

Production Status

During  the  year  ended  December  31,  2020,  net  production  from  our  acreage  was  109,921  MBOE,  or  an  average  of  300,331  BOE/d,  of  which

approximately 60% was oil, 20% was natural gas liquids and 20% was natural gas.

Recent and Future Activity

During  2021,  we  expect  to  complete  an  estimated  215  to  235  gross  (197  to  215  net)  operated  horizontal  wells  on  our  acreage.  We  currently
estimate that our capital expenditures in 2021 for drilling and infrastructure will be between $1.4 billion and $1.6 billion, consisting of $1.2 billion to $1.4
billion  for  horizontal  drilling  and  completions  including  non-operated  activity,  $60  million  to  $80  million  for  midstream  investments,  excluding  joint
venture investments, and $70 million to $90 million will be spent on infrastructure and other expenditures, excluding the cost of any leasehold and mineral
interest  acquisitions.  During  the  year  ended  December  31,  2020,  we  drilled  208  gross  (195  net)  and  completed  171  gross  (159  net)  operated  horizontal
wells. During the year ended December 31, 2020, our capital expenditures for drilling, completing and equipping wells were $1.6 billion. In addition, we
spent $248 million for oil and natural gas midstream and infrastructure.

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We were operating eight drilling rigs at December 31, 2020 and currently intend to operate between eight and 12 rigs on average in 2021. We will
continue monitoring the ongoing commodity price environment and expect to retain the financial flexibility to adjust our drilling and completion plans in
response to market conditions.

Based  on  our  evaluation  of  applicable  geologic  and  engineering  data,  we  currently  have  approximately  10,413  gross  (6,863  net)  identified
economic potential horizontal drilling locations in multiple horizons on our acreage at an assumed price of approximately $60.00 per Bbl WTI. With our
current  development  plan,  we  expect  to  continue  our  strong  PUD  conversion  ratio  in  2021  by  converting  an  estimated  30%  of  our  PUDs  to  a  proved
developed category and developing approximately 80% of the consolidated 2020 year-end PUD reserves by the end of 2023.

Oil and Natural Gas Data

Proved Reserves

Evaluation and Review of Reserves

Our historical reserve estimates as of December 31, 2020, 2019 and 2018 were prepared by Ryder Scott with respect to our assets and those of
Viper. Ryder Scott is an independent petroleum engineering firm. The technical persons responsible for preparing our proved reserve estimates meet the
requirements  with  regards  to  qualifications,  independence,  objectivity  and  confidentiality  set  forth  in  the  Standards  Pertaining  to  the  Estimating  and
Auditing of Oil and Gas Reserves Information promulgated by the Society of Petroleum Engineers. Ryder Scott is a third-party engineering firm and does
not own an interest in any of our properties and is not employed by us on a contingent basis.

Under SEC rules, proved reserves are those quantities of oil and natural gas that, by analysis of geoscience and engineering data, can be estimated
with  reasonable  certainty  to  be  economically  producible  from  a  given  date  forward,  from  known  reservoirs  and  under  existing  economic  conditions,
operating  methods  and  government  regulations  prior  to  the  time  at  which  contracts  providing  the  right  to  operate  expire,  unless  evidence  indicates  that
renewal is reasonably certain, regardless of whether deterministic or probabilistic methods are used for the estimation. If deterministic methods are used,
the  SEC  has  defined  reasonable  certainty  for  proved  reserves  as  a  “high  degree  of  confidence  that  the  quantities  will  be  recovered.”  All  of  our  proved
reserves as of December 31, 2020 were estimated using a deterministic method.

The estimation of reserves involves two distinct determinations. The first determination results in the estimation of the quantities of recoverable
oil and natural gas and the second determination results in the estimation of the uncertainty associated with those estimated quantities in accordance with
the definitions established under SEC rules. The process of estimating the quantities of recoverable oil and natural gas reserves relies on the use of certain
generally  accepted  analytical  procedures.  These  analytical  procedures  fall  into  three  broad  categories  or  methods:  (1)  performance-based  methods,
(2)  volumetric-based  methods  and  (3)  analogy.  These  methods  may  be  used  singularly  or  in  combination  by  the  reserve  evaluator  in  the  process  of
estimating the quantities of reserves. Approximately 90% of the proved producing reserves attributable to producing wells were estimated by performance
methods.  These  performance  methods  include,  but  may  not  be  limited  to,  decline  curve  analysis,  which  utilized  extrapolations  of  available  historical
production  and  pressure  data.  The  remaining  10%  of  the  proved  producing  reserves  were  estimated  by  analogy,  or  a  combination  of  performance  and
analogy methods. The analogy method was used where there were inadequate historical performance data to establish a definitive trend and where the use
of  production  performance  data  as  a  basis  for  the  reserve  estimates  was  considered  to  be  inappropriate.  All  proved  developed  non-producing  and
undeveloped reserves were estimated by the analogy method.

To estimate economically recoverable proved reserves and related future net cash flows, Ryder Scott considered many factors and assumptions,
including the use of reservoir parameters derived from geological, geophysical and engineering data which cannot be measured directly, economic criteria
based  on  current  costs  and  the  SEC  pricing  requirements  and  forecasts  of  future  production  rates.  To  establish  reasonable  certainty  with  respect  to  our
estimated  proved  reserves,  the  technologies  and  economic  data  used  in  the  estimation  of  our  proved  reserves  included  production  and  well  test  data,
downhole  completion  information,  geologic  data,  electrical  logs,  radioactivity  logs,  core  analyses,  available  seismic  data  and  historical  well  cost  and
operating expense data.

The process of estimating oil, natural gas and natural gas liquids reserves is complex and requires significant judgment, as discussed in “Item 1A.
Risk Factors” of this report. As a result, we maintain an internal staff of petroleum engineers and geoscience professionals who worked closely with our
independent reserve engineers to ensure the integrity, accuracy and timeliness of the data used to calculate our proved reserves relating to our assets in the
Permian  Basin.  Our  internal  technical  team  members  met  with  our  independent  reserve  engineers  periodically  during  the  period  covered  by  the  reserve
reports to discuss the assumptions and methods used in the proved reserve estimation process. We provide historical

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information to the independent reserve engineers for our properties such as ownership interest, oil and natural gas production, well test data, commodity
prices and operating and development costs.

Our Executive Vice President–Chief Engineer is primarily responsible for overseeing the preparation of all our reserve estimates. Our Executive
Vice President–Chief Engineer is a petroleum engineer with over 30 years of reservoir and operations experience and our geoscience staff has an average of
approximately 20 years of industry experience per person. Our technical staff uses historical information for our properties such as ownership interest, oil
and natural gas production, well test data, commodity prices and operating and development costs.

The  preparation  of  our  proved  reserve  estimates  is  completed  in  accordance  with  our  internal  control  procedures.  These  procedures,  which  are

intended to ensure reliability of reserve estimations, include the following:

•
•
•

•
•

•

review and verification of historical production data, which data is based on actual production as reported by us;
preparation of reserve estimates by our Executive Vice President–Chief Engineer or under his direct supervision;
review  by  our  Executive  Vice  President–Chief  Engineer  of  all  of  our  reported  proved  reserves  at  the  close  of  each  quarter,  including  the
review of all significant reserve changes and all new proved undeveloped reserves additions;
direct reporting responsibilities by our Executive Vice President–Chief Engineer to our Chief Executive Officer;
verification of property ownership by our land department; and

no employee’s compensation is tied to the amount of reserves booked.

The  following  table  presents  our  estimated  net  proved  oil  and  natural  gas  reserves  as  of  December  31,  2020,  2019  and  2018  (including  those
attributable to Viper), based on the reserve reports prepared by Ryder Scott in accordance with the rules and regulations of the SEC. All of our proved
reserves  included  in  the  reserve  reports  are  located  in  the  continental  United  States.  As  of  December  31,  2020,  none  of  our  total  proved  reserves  were
classified as proved developed non-producing.

Estimated Proved Developed Reserves:
Oil (MBbls)
Natural gas (MMcf)
Natural gas liquids (MBbls)
Total (MBOE)
Estimated Proved Undeveloped Reserves:
Oil (MBbls)
Natural gas (MMcf)
Natural gas liquids (MBbls)
Total (MBOE)
Estimated Net Proved Reserves:
Oil (MBbls)
Natural gas (MMcf)
Natural gas liquids (MBbls)
Total (MBOE)
Percent proved developed

(1)

2020

As of December 31,
2019

2018

443,464 
1,085,035 
192,495 
816,798 

315,937 
522,029 
96,701 
499,643 

759,401 
1,607,064 
289,196 
1,316,441 

457,083 
824,760 
165,173 
759,716 

253,820 
294,051 
65,030 
367,859 

710,903 
1,118,811 
230,203 
1,127,575 

403,051 
705,084 
125,509 
646,074 

223,885 
343,565 
64,782 
345,928 

626,936 
1,048,649 
190,291 
992,001 

62%

67%

65%

(1) Estimates of reserves as of December 31, 2020, 2019 and 2018 were prepared using an average price equal to the unweighted arithmetic average of
hydrocarbon prices received on a field-by-field basis on the first day of each month within the 12-month periods ended December 31, 2020, 2019 and
2018, respectively, in accordance with SEC guidelines. Reserve estimates do not include any value for probable or possible reserves that may exist, nor
do they include any value for undeveloped acreage. The reserve estimates represent our net revenue interest in our properties, all of which are located
within  the  continental  United  States.  Although  we  believe  these  estimates  are  reasonable,  actual  future  production,  cash  flows,  taxes,  development
expenditures, operating expenses and quantities of recoverable oil and natural gas reserves may vary substantially from these estimates. See “Item 1A.
Risk Factors”  for  a  discussion  of  risks  and  uncertainties  associated  with  our  estimates  of  proved  reserves  and  related  factors,  and  see  Note  20—
Supplemental Information on Oil and Natural Gas Operations for further discussion of our reserve estimates and pricing.

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Proved Undeveloped Reserves (PUDs)

As of December 31, 2020, our proved undeveloped reserves totaled 315,937 MBbls of oil, 522,029 MMcf of natural gas and 96,701 MBbls of

natural gas liquids, for a total of 499,643 MBOE. PUDs will be converted from undeveloped to developed as the applicable wells begin production.

The following table includes the changes in PUD reserves for 2020 (MBOE):

Beginning proved undeveloped reserves at December 31, 2019
Undeveloped reserves transferred to developed
Revisions
Purchases
Divestitures
Extensions and discoveries

Ending proved undeveloped reserves at December 31, 2020

367,859 
(89,133)
(15,742)
964 
(14)
235,709 
499,643 

The increase in proved undeveloped reserves was primarily attributable to extensions of 220,023 MBOE from 277 gross (236 net) wells in which
we have a working interest and 15,686 MBOE from 299 gross wells in which Viper owns royalty interests. Of the 277 gross working interest wells, 98
were in the Delaware Basin. Transfers of 89,133 MBOE from undeveloped to developed reserves were the result of drilling or participating in 102 gross
(94 net) horizontal wells in which we have a working interest and 82 gross wells in which we have a royalty interest or mineral interest through Viper. We
own a working interest in 78 of the 82 gross Viper wells. Downward revisions of 15,742 MBOE were the result of (i) negative revisions of 4,226 MBOE
due  to  lower  product  pricing,  which  were  partially  offset  by  positive  revisions  of  1,494  MBoe  associated  with  a  reduction  in  lease  operating  expenses,
resulting  in  a  total  negative  pricing  revision  of  2,732  MBOE,  and  (ii)  PUD  downgrades  of  26,329  MBOE  are  primarily  from  changes  in  the  corporate
development  plan.  These  negative  revisions  were  offset  with  positive  revisions  of  13,319  MBOE  associated  with  less  gas  flaring  and  a  corresponding
increase in shrunk gas and natural gas liquid recoveries.

Costs incurred relating to the development of PUDs were approximately $381 million during 2020. Estimated future development costs relating to
the development of PUDs are projected to be approximately $676 million in 2021, $764 million in 2022, $859 million in 2023 and $531 million in 2024.
Since our formation in 2011, our average drilling costs and drilling times have been reduced, and we believe we will continue to realize cost savings and
experience lower relative drilling and completion costs as we convert PUDs into proved developed reserves in upcoming years.

As of December 31, 2020, all of our proved undeveloped reserves are scheduled to be developed within five years from the date they were initially

recorded.

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Table of Contents

We have identified a multi-year inventory of potential drilling locations for our oil-weighted reserves that we believe provides attractive growth
and return opportunities. At an assumed price of approximately $60.00 per Bbl WTI, we currently have approximately 10,413 gross (6,863 net) identified
economic potential horizontal drilling locations on our acreage based on our evaluation of applicable geologic and engineering data. The following table
presents the number of identified economic potential horizontal drilling locations by basin:

Number of Identified Economic Potential
Horizontal Drilling Locations

Midland Basin

(1)

(2)

Lower Spraberry
Middle Spraberry
Wolfcamp A
Wolfcamp B
Other

(3)

(3)

Total Midland Basin

Delaware Basin

(4)

(4)

2nd Bone Springs
3rd Bone Springs
Wolfcamp A
Wolfcamp B
Other

(6)

(5)

Total Delaware Basin

Total

1,015
1,074
909
1,006
2,111
6,115

870
1,222
854
755
597
4,298
10,413

(1) Our  current  location  count  is  based  on  660  foot  to  880  foot  spacing  in  Midland,  Martin,  northeast  Andrews,  Howard  and  Glasscock  counties,

depending on the prospect area and 880 foot spacing in all other counties.

(2) Our current location count is based on 660 foot spacing in Midland, Martin and northeast Andrews counties, depending on the prospect area and 880

foot spacing in all other counties.

(3) Our  current  location  count  is  based  on  660  foot  to  880  foot  spacing  in  Midland,  Martin,  northeast  Andrews,  Howard  and  Glasscock  counties,

depending on the prospect area and 880 foot spacing in all other counties.

(4) Our current location count is based on 880 foot to 1,320 foot spacing.
(5) Our current location count is based on 880 foot to 1,056 foot spacing.

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Table of Contents

Oil and Natural Gas Production Prices and Production Costs

Production and Price History

The following tables set forth information regarding our net production of oil, natural gas and natural gas liquids by basin for each of the periods

indicated:

Production Data:
Year Ended December 31, 2020
Oil (MBbls)
Natural gas (MMcf)
Natural gas liquids (MBbls)
Total (MBoe)

Year Ended December 31, 2019
Oil (MBbls)
Natural gas (MMcf)
Natural gas liquids (MBbls)
Total (MBoe)

Year Ended December 31, 2018
Oil (MBbls)
Natural gas (MMcf)
Natural gas liquids (MBbls)
Total (MBoe)

Midland Basin

Delaware Basin

Other

(1)(2)

Total

(in thousands)

38,313 
68,529 
12,597 
62,332 

41,156 
48,109 
10,485 
59,659 

24,698 
21,674 
5,493 
33,803 

27,703 
61,606 
9,295 
47,266 

25,951 
48,447 
7,826 
41,852 

9,288 
12,416 
1,866 
13,223 

166 
414 
89 
324 

1,411 
1,057 
187 
1,774 

381 
579 
106 
584 

66,182 
130,549 
21,981 
109,921 

68,518 
97,613 
18,498 
103,285 

34,367 
34,669 
7,465 
47,610 

(1) Production data for the years ended December 31, 2020 and 2019 includes the Central Basin Platform, the Eagle Ford Shale and the Rockies.
(2) Production data for the year ended December 31, 2018 includes the Eagle Ford Shale.

The following table sets forth certain price and cost information for each of the periods indicated:

Average Prices:
Oil ($ per Bbl)
Natural gas ($ per Mcf)
Natural gas liquids ($ per Bbl)
Combined ($ per BOE)

(1)

Oil, hedged ($ per Bbl)
Natural gas, hedged ($ per MMbtu)
Natural gas liquids, hedged ($ per Bbl)
Average price, hedged ($ per BOE)

(1)

(1)

(1)

Average Costs per BOE:

Lease operating expenses
Production and ad valorem taxes
Gathering and transportation expense
General and administrative - cash component

Total operating expense - cash

General and administrative - non-cash component
Depletion
Interest expense, net
Merger and integration expense

Total expenses

11

2020

Year Ended December 31,
2019

2018

$
$
$
$

$
$
$
$

$

$

$

$

36.41  $
0.82  $
10.87  $
25.07  $

40.34  $
0.67  $
10.83  $
27.26  $

3.87  $
1.77 
1.27 
0.46 
7.37  $

0.34  $
11.30 
1.79 
— 
13.43  $

51.87  $
0.68  $
14.42  $
37.63  $

51.96  $
0.86  $
15.20  $
38.00  $

4.74  $
2.40 
0.86 
0.54 
8.54  $

0.46  $
13.54 
1.66 
— 
15.66  $

54.66 
1.76 
25.47 
44.73 

51.20 
1.72 
25.46 
42.20 

4.31 
2.79 
0.55 
0.79 
8.44 

0.57 
12.50 
1.83 
0.77 
15.67 

Table of Contents

(1) Hedged prices reflect the effect of our commodity derivative transactions on our average sales prices and includes gains and losses on cash settlements

for matured commodity derivatives, which we do not designate for hedge accounting.

Wells Drilled and Completed in 2020

The following table sets forth the total number of operated horizontal wells drilled and completed during the year ended December 31, 2020:

Area
Midland Basin
Delaware Basin

Total

As of December 31, 2020, we operated the following wells:

Year Ended December 31, 2020

Drilled

Completed

Gross

Net

Gross

Net

133 
75 
208 

125 
70 
195 

93 
78 
171 

85 
74 
159 

Area
Midland Basin
Delaware Basin

Total

Productive Wells

Vertical Wells

Gross

Net

Horizontal Wells

Gross

Net

Total

Gross

Net

1,745 
25 
1,770 

1,641 
22 
1,663 

1,102 
592 
1,694 

1,008 
557 
1,565 

2,847 
617 
3,464 

2,649 
579 
3,228 

As of December 31, 2020, we owned an average unweighted 79% working interest in 4,326 gross (3,401 net) productive wells and an average
1.8%  royalty  interest  in  4,553  additional  wells.  Through  our  subsidiary  Viper,  we  own  an  average  3.8%  net  revenue  interest  in  7,167  gross  productive
wells. Productive wells consist of producing wells and wells capable of production, including natural gas wells awaiting pipeline connections to commence
deliveries and oil wells awaiting connection to production facilities. Gross wells are the total number of producing wells in which we have an interest, and
net wells are the sum of our fractional working interests owned in gross wells.

The following table sets forth information regarding productive wells by basin as of December 31, 2020:

Midland Basin
Delaware Basin
Other

Total productive wells

Oil

5,397 
1,904 
1,316 
8,617 

Gross Wells
Natural Gas

Total

Oil

Net Wells
Natural Gas

Total

29 
158 
75 
262 

5,426 
2,062 
1,391 
8,879 

2,740 
630 
2 
3,372 

10 
19 
— 
29 

2,750 
649 
2 
3,401 

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Table of Contents

Drilling Results

The  following  tables  set  forth  information  with  respect  to  the  number  of  wells  completed  during  the  periods  indicated  by  basin.  Each  of  these
wells was drilled in the Permian Basin of West Texas. The information should not be considered indicative of future performance, nor should it be assumed
that there is necessarily any correlation between the number of productive wells drilled, quantities of reserves found or economic value. Productive wells
are those that produce commercial quantities of hydrocarbons, whether or not they produce a reasonable rate of return.

Development:
Productive
Dry

Exploratory:
Productive
Dry
Total:

Productive
Dry

Development:
Productive
Dry

Exploratory:
Productive
Dry
Total:

Productive
Dry

Development:
Productive
Dry

Exploratory:
Productive
Dry
Total:

Productive
Dry

Midland Basin
Net

Gross

Year Ended December 31, 2020
Delaware Basin
Net

Gross

Total

Gross

Net

87 
— 

46 
— 

133 
— 

81 
— 

44 
— 

125 
— 

26 
— 

49 
— 

75 
— 

25 
— 

45 
— 

70 
— 

113 
— 

95 
— 

208 
— 

106 
— 

89 
— 

195 
— 

Midland Basin
Net

Gross

Year Ended December 31, 2019
Delaware Basin
Net

Gross

Total

Gross

Net

75 
— 

96 
— 

171 
— 

68 
— 

86 
— 

154 
— 

31 
— 

128 
— 

159 
— 

28 
— 

114 
— 

142 
— 

106 
— 

224 
— 

330 
— 

96 
— 

200 
— 

296 
— 

Midland Basin
Net

Gross

Year Ended December 31, 2018
Delaware Basin
Net

Gross

Total

Gross

Net

67 
— 

50 
— 

117 
— 

58 
— 

43 
— 

101 
— 

21 
— 

38 
— 

59 
— 

20 
— 

35 
— 

55 
— 

88 
— 

88 
— 

176 
— 

78 
— 

78 
— 

156 
— 

As of December 31, 2020, we had 20 gross (19 net) operated wells in the process of drilling and 151 gross (141 net) in the process of completion

or waiting on completion.

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Table of Contents

Acreage

The following table sets forth information as of December 31, 2020 relating to our leasehold acreage:

Basin
Midland
Delaware
Exploration
Conventional Permian

Total

Developed Acreage

(1)

Gross

119,073 
103,712 
107 
40 
222,932 

Net

99,751 
77,263 
107 
38 
177,159 

Undeveloped Acreage
Net
Gross

96,883 
88,985 
38,097 
2,745 
226,710 

94,840 
75,324 
28,838 
2,517 
201,519 

Total Acreage

(2)

Gross

215,956 
192,697 
38,204 
2,785 
449,642 

Net
194,591 
152,587 
28,945 
2,555 
378,678 

(1) Does not include undrilled acreage held by production under the terms of the lease. Large portions of the acreage that are considered developed under
SEC  guidelines  are  developed  with  vertical  wells  or  horizontal  wells  that  are  in  a  single  horizon.  We  believe  much  of  this  acreage  has  significant
remaining development potential in one or more intervals with horizontal wells.

(2) Does not include Viper’s mineral interests but does include leasehold acres that we own underlying our mineral interests.

Undeveloped acreage expirations

As of December 31, 2020, the following gross and net undeveloped acres are set to expire over the next four years based on their contractual lease
maturities  unless  (i)  production  is  established  within  the  spacing  units  covering  the  acreage  or  (ii)  the  lease  is  renewed  or  extended  under  continuous
drilling provisions prior to the contractual expiration dates.

Acres Expiring

Delaware

Midland

Exploratory

Total

Gross

Net

Gross

Net

Gross

Net

Gross

Net

13,727 
9,634 
966 
370 
24,697 

8,149 
1,063 
410 
59 
9,681 

24,099 
3,294 
1,951 
— 
29,344 

21,093 
813 
1,597 
— 
23,503 

23,474 
659 
— 
— 
24,133 

22,063 
165 
— 
— 
22,228 

61,300 
13,587 
2,917 
370 
78,174 

51,305 
2,041 
2,007 
59 
55,412 

2021
2022
2023
2024

Total

Title to Properties

As is customary in the oil and natural gas industry, we initially conduct only a cursory review of the title to our properties. At such time as we
determine to conduct drilling operations on those properties, we conduct a thorough title examination and perform curative work with respect to significant
defects prior to commencement of drilling operations. To the extent title opinions or other investigations reflect title defects on those properties, we are
typically responsible for curing any title defects at our expense. We generally will not commence drilling operations on a property until we have cured any
material title defects on such property. We have obtained title opinions on substantially all of our producing properties and believe that we have satisfactory
title to our producing properties in accordance with standards generally accepted in the oil and natural gas industry. Prior to completing an acquisition of
producing oil and natural gas leases, we perform title reviews on the most significant leases and, depending on the materiality of properties, we may obtain
a  title  opinion,  obtain  an  updated  title  review  or  opinion  or  review  previously  obtained  title  opinions.  Our  oil  and  natural  gas  properties  are  subject  to
customary royalty and other interests, liens for current taxes and other burdens which we believe do not materially interfere with the use of or affect our
carrying value of the properties.

Marketing and Customers

We typically sell production to a relatively small number of customers, as is customary in the exploration, development and production business.
For the year ended December 31, 2020, four purchasers each accounted for more than 10% of our revenue. For each of the years ended December 31, 2019
and  2018,  three  purchasers  each  accounted  for  more  than  10%  of  our  revenue.  We  do  not  require  collateral  and  do  not  believe  the  loss  of  any  single
purchaser would materially impact our operating results, as crude oil and natural gas are fungible products with well-established markets and numerous
purchasers. For additional information regarding our customer concentrations, see Note 3—Revenue from Contracts with Customers included in notes to
the consolidated financial statements included elsewhere in this Annual Report.

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Table of Contents

Delivery Commitments

Certain  of  our  firm  sales  agreements  for  oil  include  delivery  commitments  that  specify  the  delivery  of  a  fixed  and  determinable  quantity.  We
believe our current production and reserves are sufficient to fulfill these delivery commitments and we expect such reserves will continue to be the primary
means of fulfilling our future commitments. However, these contracts provide the options of delivering third-party volumes or paying a monetary shortfall
penalty  if  production  is  inadequate  to  satisfy  our  commitment.  For  additional  information  regarding  commitments,  see  Note  17—Commitments  and
Contingencies included in notes to the consolidated financial statements included elsewhere in this Annual Report.

Competition

The  oil  and  natural  gas  industry  is  intensely  competitive,  and  in  our  upstream  segment,  we  compete  with  other  companies  that  have  greater
resources. Many of these companies not only explore for and produce oil and natural gas, but also carry on midstream and refining operations and market
petroleum  and  other  products  on  a  regional,  national  or  worldwide  basis.  These  companies  may  be  able  to  pay  more  for  productive  oil  and  natural  gas
properties and exploratory prospects or to define, evaluate, bid for and purchase a greater number of properties and prospects than our financial or human
resources permit. In addition, these companies may have a greater ability to continue exploration activities during periods of low oil and natural gas market
prices.  Our  larger  or  more  integrated  competitors  may  be  able  to  absorb  the  burden  of  existing,  and  any  changes  to,  federal,  state  and  local  laws  and
regulations more easily than we can, which would adversely affect our competitive position. Our ability to acquire additional properties and to discover
reserves in the future will be dependent upon our ability to evaluate and select suitable properties and to consummate transactions in a highly competitive
environment. In addition, because we have fewer financial and human resources than many companies in our industry, we may be at a disadvantage in
bidding for exploratory prospects and producing oil and natural gas properties. Further, oil and natural gas compete with other forms of energy available to
customers, primarily based on price. These alternate forms of energy include electricity, coal and fuel oils. Changes in the availability or price of oil and
natural gas or other forms of energy, as well as business conditions, conservation, legislation, regulations and the ability to convert to alternate fuels and
other forms of energy may affect the demand for oil and natural gas.

In our midstream operations segment, as Rattler seeks to expand its crude oil, natural gas and water-related midstream services, it faces a high
level  of  competition,  including  major  integrated  crude  oil  and  natural  gas  companies,  interstate  and  intrastate  pipelines  and  companies  that  gather,
compress, treat, process, transport, store or market oil and natural gas. As Rattler seeks to expand to provide midstream services to third party producers, it
similarly  faces  a  high  level  of  competition.  Competition  is  often  the  greatest  in  geographic  areas  experiencing  robust  drilling  by  producers  and  during
periods of high commodity prices for crude oil, natural gas or natural gas liquids. Within the acreage dedicated by Rattler to us, Rattler does not compete
with other midstream companies to provide us with midstream services as a result of our relationship and long-term dedications to Rattler’s midstream
assets. However, we may continue to use third party service providers for certain midstream services within such dedicated acreage until the expiration or
termination of certain pre-existing dedications.

Transportation

During  the  initial  development  of  our  fields  we  evaluate  all  gathering  and  delivery  infrastructure  in  the  areas  of  our  production.  Currently,  a

majority of our production in the Midland and Delaware Basins are transported to purchasers by pipeline. 

The following table presents the average percentage of produced oil sold by pipeline and the average percentage of produced water connected to

saltwater disposals by pipeline:

% of produced oil sold by pipeline
% of produced water transported by pipeline

Midland Basin

Delaware Basin

Total

95 %
97 %

93 %
98 %

94 %
98 %

We  have  entered  into  multiple  fee-based  commercial  agreements  with  Rattler,  each  with  an  initial  term  ending  in  2034,  utilizing  Rattler’s
infrastructure assets or its planned infrastructure assets to provide an array of essential services critical to our upstream operations in the Delaware and
Midland Basins. Our agreements with Rattler include a total of approximately 395,000 gross acres across all Rattler’s service lines across the Midland and
Delaware Basins.

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Table of Contents

Oil and Natural Gas Leases

The typical oil and natural gas lease agreement covering our properties provides for the payment of royalties to the mineral owner for all oil and
natural gas produced from any wells drilled on the leased premises. The lessor royalties and other leasehold burdens on our properties generally range from
12.5% to 30.0%, resulting in a net revenue interest to us generally ranging from 70.0% to 87.5%.

Seasonal Nature of Business

Generally,  demand  for  oil  increases  during  the  summer  months  and  decreases  during  the  winter  months  while  natural  gas  decreases  during  the
summer  months  and  increases  during  the  winter  months.  Certain  natural  gas  users  utilize  natural  gas  storage  facilities  and  purchase  some  of  their
anticipated winter requirements during the summer, which can lessen seasonal demand fluctuations. In our exploration and production business, seasonal
weather conditions, such as, for example, the recent severe winter storms in the Permian Basin, and lease stipulations can limit our drilling and producing
activities and other oil and natural gas operations in a portion of our operating areas. These seasonal anomalies can pose challenges for meeting our well
drilling  objectives  and  can  increase  competition  for  equipment,  supplies  and  personnel  during  the  spring  and  summer  months,  which  could  lead  to
shortages  and  increase  costs  or  delay  operations.  In  our  midstream  operations  business,  the  volumes  of  condensate  produced  at  Rattler’s  processing
facilities  fluctuate  seasonally,  with  volumes  generally  increasing  in  the  winter  months  and  decreasing  in  the  summer  months  as  a  result  of  the  physical
properties of natural gas and comingled liquids. Severe or prolonged summers may adversely affect our results of operations in the midstream operations
segment.

Regulation

Oil  and  natural  gas  operations  such  as  ours  are  subject  to  various  types  of  legislation,  regulation  and  other  legal  requirements  enacted  by
governmental authorities. This legislation and regulation affecting the oil and natural gas industry is under constant review for amendment or expansion.
Some of these requirements carry substantial penalties for failure to comply. The regulatory burden on the oil and natural gas industry increases our cost of
doing business and, consequently, affects our profitability.

Environmental Matters and Regulation

Our oil and natural gas exploration, development and production operations are subject to stringent laws and regulations governing the discharge
of materials into the environment or otherwise relating to environmental protection. Numerous federal, state and local governmental agencies, such as the
EPA, issue regulations that often require difficult and costly compliance measures that carry substantial administrative, civil and criminal penalties and may
result in injunctive obligations for non-compliance. These laws and regulations may require the acquisition of a permit before drilling commences, restrict
the  types,  quantities  and  concentrations  of  various  substances  that  can  be  released  into  the  environment  in  connection  with  drilling  and  production
activities, limit or prohibit construction or drilling activities on certain lands lying within wilderness, wetlands, ecologically or seismically sensitive areas,
and other protected areas, require action to prevent or remediate pollution from current or former operations, such as plugging abandoned wells or closing
pits,  result  in  the  suspension  or  revocation  of  necessary  permits,  licenses  and  authorizations,  require  that  additional  pollution  controls  be  installed  and
impose  substantial  liabilities  for  pollution  resulting  from  our  operations  or  related  to  our  owned  or  operated  facilities.  Liability  under  such  laws  and
regulations is often strict (i.e., no showing of “fault” is required) and can be joint and several. Moreover, it is not uncommon for neighboring landowners
and other third parties to file claims for personal injury and property damage allegedly caused by the release of hazardous substances, hydrocarbons or
other waste products into the environment. Changes in environmental laws and regulations occur frequently, and any changes that result in more stringent
and costly pollution control or waste handling, storage, transport, disposal or cleanup requirements could materially and adversely affect our operations and
financial position, as well as the oil and natural gas industry in general. Our management believes that we are in substantial compliance with applicable
environmental laws and regulations and we have not experienced any material adverse effect from compliance with these environmental requirements. This
trend, however, may not continue in the future.

Waste  Handling.  The  Resource  Conservation  and  Recovery  Act,  or  the  RCRA,  as  amended,  and  comparable  state  statutes  and  regulations
promulgated thereunder, affect oil and natural gas exploration, development and production activities by imposing requirements regarding the generation,
transportation,  treatment,  storage,  disposal  and  cleanup  of  hazardous  and  non-hazardous  wastes.  With  federal  approval,  the  individual  states  administer
some or all of the provisions of the RCRA, sometimes in conjunction with their own, more stringent requirements. Although most wastes associated with
the exploration, development and production of crude oil and natural gas are exempt from regulation as hazardous wastes under the RCRA, such wastes
may constitute “solid wastes” that are subject to the less stringent non-hazardous waste requirements. Moreover, the EPA or state or local governments may
adopt more stringent requirements for the handling of non-hazardous wastes or

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Table of Contents

categorize  some  non-hazardous  wastes  as  hazardous  for  future  regulation.  Indeed,  legislation  has  been  proposed  from  time  to  time  in  Congress  to  re-
categorize certain oil and natural gas exploration, development and production wastes as “hazardous wastes.” Also, in December 2016, the EPA agreed in a
consent decree to review its regulation of oil and natural gas waste. However, in April 2019, the EPA concluded that revisions to the federal regulations for
the management of oil and natural gas waste are not necessary at this time. Any changes in such laws and regulations could have a material adverse effect
on our capital expenditures and operating expenses.

Administrative, civil and criminal penalties can be imposed for failure to comply with waste handling requirements. We believe that we are in
substantial  compliance  with  applicable  requirements  related  to  waste  handling,  and  that  we  hold  all  necessary  and  up-to-date  permits,  registrations  and
other  authorizations  to  the  extent  that  our  operations  require  them  under  such  laws  and  regulations.  Although  we  do  not  believe  the  current  costs  of
managing  our  wastes,  as  presently  classified,  to  be  significant,  any  legislative  or  regulatory  reclassification  of  oil  and  natural  gas  exploration  and
production wastes could increase our costs to manage and dispose of such wastes.

Remediation of Hazardous Substances. The Comprehensive Environmental Response, Compensation and Liability Act, as amended, which we
refer to as CERCLA or the “Superfund” law, and analogous state laws, generally impose liability, without regard to fault or legality of the original conduct,
on  classes  of  persons  who  are  considered  to  be  responsible  for  the  release  of  a  “hazardous  substance”  into  the  environment.  These  persons  include  the
current owner or operator of a contaminated facility, a former owner or operator of the facility at the time of contamination, and those persons that disposed
or arranged for the disposal of the hazardous substance at the facility. Under CERCLA and comparable state statutes, persons deemed “responsible parties”
are  subject  to  strict  liability  that,  in  some  circumstances,  may  be  joint  and  several  for  the  costs  of  removing  or  remediating  previously  disposed  wastes
(including wastes disposed of or released by prior owners or operators) or property contamination (including groundwater contamination), for damages to
natural resources and for the costs of certain health studies. In addition, it is not uncommon for neighboring landowners and other third parties to file claims
for personal injury and property damage allegedly caused by the hazardous substances released into the environment. In the course of our operations, we
use materials that, if released, would be subject to CERCLA and comparable state statutes. Therefore, governmental agencies or third parties may seek to
hold us responsible under CERCLA and comparable state statutes for all or part of the costs to clean up sites at which such “hazardous substances” have
been released.

Water Discharges. The Federal Water Pollution Control Act of 1972, as amended, also known as the “Clean Water Act,” or the CWA, the Safe
Drinking  Water  Act,  the  Oil  Pollution  Act,  or  the  OPA,  and  analogous  state  laws  and  regulations  promulgated  thereunder  impose  restrictions  and  strict
controls regarding the unauthorized discharge of pollutants, including produced waters and other gas and oil wastes, into navigable waters of the United
States, as well as state waters. The discharge of pollutants into regulated waters is prohibited, except in accordance with the terms of a permit issued by the
EPA  or  the  state.  Spill  prevention,  control  and  countermeasure  plan  requirements  under  federal  law  require  appropriate  containment  berms  and  similar
structures  to  help  prevent  the  contamination  of  navigable  waters  in  the  event  of  a  petroleum  hydrocarbon  tank  spill,  rupture  or  leak.  The  CWA  and
regulations implemented thereunder also prohibit the discharge of dredge and fill material into regulated waters, including jurisdictional wetlands, unless
authorized by an appropriately issued permit.

On June 29, 2015, the EPA and the U.S. Army Corps of Engineers, or the Corps, jointly promulgated final rules redefining the scope of waters
protected under the CWA. However, on October 22, 2019, the agencies published a final rule to repeal the 2015 rules. The 2015 rule and the 2019 repeal
are subject to several ongoing legal challenges. Also, on April 21, 2020, the EPA and the Corps published a final rule replacing the 2015 rule, and
significantly reducing the waters subject to federal regulation under the CWA. As a result of such recent developments, substantial uncertainty exists
regarding the scope of waters protected under the CWA. Several state and environmental groups have challenged the replacement rule and, on January 20,
2021, the Biden Administration directed the EPA and the Corps to review the rule. To the extent the rules expand the range of properties subject to the
CWA’s jurisdiction, we could face increased costs and delays with respect to obtaining permits for dredge and fill activities in wetland areas.

The EPA has also adopted regulations requiring certain oil and natural gas exploration and production facilities to obtain individual permits or
coverage  under  general  permits  for  storm  water  discharges.  In  addition,  on  June  28,  2016,  the  EPA  published  a  final  rule  prohibiting  the  discharge  of
wastewater  from  onshore  unconventional  oil  and  natural  gas  extraction  facilities  to  publicly  owned  wastewater  treatment  plants,  which  regulations  are
discussed  in  more  detail  below  under  the  caption  “–Regulation  of  Hydraulic  Fracturing.”  Costs  may  be  associated  with  the  treatment  of  wastewater  or
developing and implementing storm water pollution prevention plans, as well as for monitoring and sampling the storm water runoff from certain of our
facilities.  Some  states  also  maintain  groundwater  protection  programs  that  require  permits  for  discharges  or  operations  that  may  impact  groundwater
conditions.

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The OPA is the primary federal law for oil spill liability. The OPA contains numerous requirements relating to the prevention of and response to
petroleum  releases  into  waters  of  the  United  States,  including  the  requirement  that  operators  of  offshore  facilities  and  certain  onshore  facilities  near  or
crossing waterways must develop and maintain facility response contingency plans and maintain certain significant levels of financial assurance to cover
potential environmental cleanup and restoration costs. The OPA subjects owners of facilities to strict liability that, in some circumstances, may be joint and
several for all containment and cleanup costs and certain other damages arising from a release, including, but not limited to, the costs of responding to a
release of oil to surface waters.

Non-compliance with the CWA or the OPA may result in substantial administrative, civil and criminal penalties, as well as injunctive obligations.

We believe we are in material compliance with the requirements of each of these laws.

Air Emissions. The federal Clean Air Act, or the CAA, as amended, and comparable state laws and regulations, regulate emissions of various air
pollutants  through  the  issuance  of  permits  and  the  imposition  of  other  requirements.  The  EPA  has  developed,  and  continues  to  develop,  stringent
regulations governing emissions of air pollutants at specified sources. New facilities may be required to obtain permits before work can begin, and existing
facilities may be required to obtain additional permits and incur capital costs in order to remain in compliance. For example, on August 16, 2012, the EPA
published final regulations under the federal CAA that establish new emission controls for oil and natural gas production and processing operations, which
are discussed in more detail below in “—Regulation of Hydraulic Fracturing.” Also, on May 12, 2016, the EPA issued a final rule regarding the criteria for
aggregating multiple small surface sites into a single source for air-quality permitting purposes applicable to the oil and natural gas industry. This rule could
cause small facilities, on an aggregate basis, to be deemed a major source, thereby triggering more stringent air permitting processes and requirements.
These  laws  and  regulations  may  increase  the  costs  of  compliance  for  some  facilities  we  own  or  operate,  and  federal  and  state  regulatory  agencies  can
impose administrative, civil and criminal penalties for non-compliance with air permits or other requirements of the federal CAA and associated state laws
and regulations. We believe that we are in substantial compliance with all applicable air emissions regulations and that we hold all necessary and valid
construction  and  operating  permits  for  our  operations.  Obtaining  or  renewing  permits  has  the  potential  to  delay  the  development  of  oil  and  natural  gas
projects.

Climate Change. In recent years, federal, state and local governments have taken steps to reduce emissions of greenhouse gases. The EPA has
finalized a series of greenhouse gas monitoring, reporting and emissions control rules for the oil and natural gas industry, and the U.S. Congress has, from
time  to  time,  considered  adopting  legislation  to  reduce  emissions.  Almost  one-half  of  the  states  have  already  taken  measures  to  reduce  emissions  of
greenhouse gases primarily through the development of greenhouse gas emission inventories and/or regional greenhouse gas cap-and-trade programs. In
addition, states have imposed increasingly stringent requirements related to the venting or flaring of gas during oil and natural gas operations. For example,
on November 4, 2020, the Texas Railroad Commission adopted new guidance on when flaring is permissible, requiring operators to submit more specific
information to justify the need to flare or vent gas.

At the international level, in December 2015, the United States participated in the 21st Conference of the Parties of the United Nations Framework
Convention on Climate Change in Paris, France. The resulting Paris Agreement calls for the parties to undertake “ambitious efforts” to limit the average
global temperature, and to conserve and enhance sinks and reservoirs of greenhouse gases. The Agreement went into effect on November 4, 2016. The
Agreement  establishes  a  framework  for  the  parties  to  cooperate  and  report  actions  to  reduce  greenhouse  gas  emissions.  Although  the  United  States
withdrew  from  the  Paris  Agreement  effective  November  4,  2020,  President  Biden  issued  an  Executive  Order  on  January  20,  2021  to  rejoin  the  Paris
Agreement, which went into effect on February 19, 2021. The United States has indicated its plan to announce in advance of an April 22, 2021 climate
summit its nationally determined contribution, or its commitment to reduce its national greenhouse gas emissions to meet this objective. Furthermore, many
state and local leaders have stated their intent to intensify efforts to support the commitments set forth in the international accord.

Restrictions on emissions of methane or carbon dioxide that may be imposed could adversely impact the demand for, price of, and value of our
products and reserves. As our operations also emit greenhouse gases directly, current and future laws or regulations limiting such emissions could increase
our own costs. At this time, it is not possible to accurately estimate how potential future laws or regulations addressing greenhouse gas emissions would
impact our business.

In  addition,  there  have  also  been  efforts  in  recent  years  to  influence  the  investment  community,  including  investment  advisors  and  certain
sovereign wealth, pension and endowment funds promoting divestment of fossil fuel equities and pressuring lenders to limit funding to companies engaged
in  the  extraction  of  fossil  fuel  reserves.  Such  environmental  activism  and  initiatives  aimed  at  limiting  climate  change  and  reducing  air  pollution  could
interfere  with  our  business  activities,  operations  and  ability  to  access  capital.  Furthermore,  claims  have  been  made  against  certain  energy  companies
alleging that greenhouse gas emissions from oil and natural gas operations constitute a public nuisance under federal and/or state common law. As a result,
private individuals or public entities may seek to enforce environmental laws and regulations against us and could allege personal injury, property damages
or other liabilities. While our business is not a party to any

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such litigation, we could be named in actions making similar allegations. An unfavorable ruling in any such case could significantly impact our operations
and could have an adverse impact on our financial condition.

Moreover,  climate  change  may  be  associated  with  extreme  weather  conditions  such  as  more  intense  hurricanes,  thunderstorms,  tornadoes  and
snow or ice storms, as well as rising sea levels. Another possible consequence of climate change is increased volatility in seasonal temperatures. Some
studies indicate that climate change could cause some areas to experience temperatures substantially hotter or colder than their historical averages. Extreme
weather conditions, such as, for example, the recent severe winter storms in the Permian Basin, can interfere with our production and increase our costs and
damage resulting from extreme weather may not be fully insured. However, at this time, we are unable to determine the extent to which climate change
may lead to increased storm or weather hazards affecting our operations.

Regulation of Hydraulic Fracturing

Hydraulic fracturing is an important common practice that is used to stimulate production of hydrocarbons from tight formations, including shales.
The  process,  which  involves  the  injection  of  water,  sand  and  chemicals  under  pressure  into  formations  to  fracture  the  surrounding  rock  and  stimulate
production, is typically regulated by state oil and natural gas commissions. However, legislation has been proposed in recent sessions of Congress to amend
the Safe Drinking Water Act to repeal the exemption for hydraulic fracturing from the definition of “underground injection,” to require federal permitting
and  regulatory  control  of  hydraulic  fracturing,  and  to  require  disclosure  of  the  chemical  constituents  of  the  fluids  used  in  the  fracturing  process.
Furthermore, several federal agencies have asserted regulatory authority over certain aspects of the process. For example, the EPA has taken the position
that hydraulic fracturing with fluids containing diesel fuel is subject to regulation under the Underground Injection Control program, specifically as “Class
II” Underground Injection Control wells under the Safe Drinking Water Act.

On  June  28,  2016,  the  EPA  published  a  final  rule  prohibiting  the  discharge  of  wastewater  from  onshore  unconventional  oil  and  natural  gas
extraction  facilities  to  publicly  owned  wastewater  treatment  plants.  The  EPA  is  also  conducting  a  study  of  private  wastewater  treatment  facilities  (also
known as centralized waste treatment, or CWT, facilities) accepting oil and natural gas extraction wastewater. The EPA is collecting data and information
related to the extent to which CWT facilities accept such wastewater, available treatment technologies (and their associated costs), discharge characteristics,
financial characteristics of CWT facilities, and the environmental impacts of discharges from CWT facilities.

On August 16, 2012, the EPA published final regulations under the federal CAA that establish new air emission controls for oil and natural gas
production and natural gas processing operations. Specifically, the EPA’s rule package includes New Source Performance standards to address emissions of
sulfur dioxide and volatile organic compounds and a separate set of emission standards to address hazardous air pollutants frequently associated with oil
and natural gas production and processing activities. The final rules seek to achieve a 95% reduction in volatile organic compounds emitted by requiring
the use of reduced emission completions or “green completions” on all hydraulically-fractured wells constructed or refractured after January 1, 2015. The
rules  also  establish  specific  new  requirements  regarding  emissions  from  compressors,  controllers,  dehydrators,  storage  tanks  and  other  production
equipment.  The  EPA  received  numerous  requests  for  reconsideration  of  these  rules  from  both  industry  and  the  environmental  community,  and  court
challenges to the rules were also filed. In response, the EPA has issued, and will likely continue to issue, revised rules responsive to some of the requests
for reconsideration. In particular, on May 12, 2016, the EPA amended its regulations to impose new standards for methane and volatile organic compounds
emissions for certain new, modified, and reconstructed equipment, processes, and activities across the oil and natural gas sector. However, in a March 28,
2017 executive order, the Trump Administration directed the EPA to review the 2016 regulations and, if appropriate, to initiate a rulemaking to rescind or
revise them consistent with the stated policy of promoting clean and safe development of the nation’s energy resources, while at the same time avoiding
regulatory burdens that unnecessarily encumber energy production. Accordingly, on August 13, 2020, the EPA issued final amendments to the 2012 and
2016 New Source Performance standards to ease regulatory burdens, including rescinding standards applicable to transmission or storage segments and
eliminating  methane  requirements  altogether.  Various  state,  municipal  and  environmental  groups  have  challenged  the  amendments  and,  on  January  20,
2021, President Biden issued an executive order directing the EPA to review the amendments consistent with several policy objective, including reducing
greenhouse  gas  emissions.  Thus  substantial  uncertainty  exists  regarding  the  scope  of  the  New  Source  Performance  standards  for  oil  and  natural  gas
operations.  The  2012  and  2016  New  Source  Performance  standards,  to  the  extent  implemented,  as  well  as  any  future  laws  and  their  implementing
regulations, may require us to obtain pre-approval for the expansion or modification of existing facilities or the construction of new facilities expected to
produce air emissions, impose stringent air permit requirements, or mandate the use of specific equipment or technologies to control emissions.

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Furthermore,  there  are  certain  governmental  reviews  either  underway  or  being  proposed  that  focus  on  environmental  aspects  of  hydraulic
fracturing practices. On December 13, 2016, the EPA released a study examining the potential for hydraulic fracturing activities to impact drinking water
resources, finding that, under some circumstances, the use of water in hydraulic fracturing activities can impact drinking water resources. Also, on February
6, 2015, the EPA released a report with findings and recommendations related to public concern about induced seismic activity from disposal wells. The
report recommends strategies for managing and minimizing the potential for significant injection-induced seismic events. Other governmental agencies,
including the U.S. Department of Energy, the U.S. Geological Survey, and the U.S. Government Accountability Office, have evaluated or are evaluating
various other aspects of hydraulic fracturing. These ongoing or proposed studies could spur initiatives to further regulate hydraulic fracturing, and could
ultimately make it more difficult or costly for us to perform fracturing and increase our costs of compliance and doing business.

Several  states,  including  Texas,  and  local  jurisdictions,  have  adopted,  or  are  considering  adopting,  regulations  that  could  restrict  or  prohibit
hydraulic  fracturing  in  certain  circumstances,  impose  more  stringent  operating  standards  and/or  require  the  disclosure  of  the  composition  of  hydraulic
fracturing fluids. The Texas Legislature adopted legislation, effective September 1, 2011, requiring oil and natural gas operators to publicly disclose the
chemicals used in the hydraulic fracturing process. The Texas Railroad Commission adopted rules and regulations implementing this legislation that apply
to  all  wells  for  which  the  Texas  Railroad  Commission  issues  an  initial  drilling  permit  after  February  1,  2012.  The  law  requires  that  the  well  operator
disclose the list of chemical ingredients subject to the requirements of OSHA for disclosure on an internet website and also file the list of chemicals with
the Texas Railroad Commission with the well completion report. The total volume of water used to hydraulically fracture a well must also be disclosed to
the  public  and  filed  with  the  Texas  Railroad  Commission.  Also,  in  May  2013,  the  Texas  Railroad  Commission  adopted  rules  governing  well  casing,
cementing and other standards for ensuring that hydraulic fracturing operations do not contaminate nearby water resources. The rules took effect in January
2014. Additionally, on October 28, 2014, the Texas Railroad Commission adopted disposal well rule amendments designed, among other things, to require
applicants  for  new  disposal  wells  that  will  receive  non-hazardous  produced  water  and  hydraulic  fracturing  flowback  fluid  to  conduct  seismic  activity
searches utilizing the U.S. Geological Survey. The searches are intended to determine the potential for earthquakes within a circular area of 100 square
miles around a proposed new disposal well. The disposal well rule amendments, which became effective on November 17, 2014, also clarify the Texas
Railroad Commission’s authority to modify, suspend or terminate a disposal well permit if scientific data indicates a disposal well is likely to contribute to
seismic activity. The Texas Railroad Commission has used this authority to deny permits for waste disposal wells.

There has been increasing public controversy regarding hydraulic fracturing with regard to the use of fracturing fluids, induced seismic activity,
impacts on drinking water supplies, use of water and the potential for impacts to surface water, groundwater and the environment generally. A number of
lawsuits  and  enforcement  actions  have  been  initiated  across  the  country  implicating  hydraulic  fracturing  practices.  If  new  laws  or  regulations  that
significantly restrict hydraulic fracturing are adopted, such laws could make it more difficult or costly for us to perform fracturing to stimulate production
from tight formations as well as make it easier for third parties opposing the hydraulic fracturing process to initiate legal proceedings based on allegations
that  specific  chemicals  used  in  the  fracturing  process  could  adversely  affect  groundwater.  In  addition,  if  hydraulic  fracturing  is  further  regulated  at  the
federal,  state  or  local  level,  our  fracturing  activities  could  become  subject  to  additional  permitting  and  financial  assurance  requirements,  more  stringent
construction specifications, increased monitoring, reporting and recordkeeping obligations, plugging and abandonment requirements and also to permitting
delays  and  potential  increases  in  costs.  Such  changes  could  cause  us  to  incur  substantial  compliance  costs,  and  compliance  or  the  consequences  of  any
failure to comply by us could have a material adverse effect on our financial condition and results of operations. At this time, it is not possible to estimate
the impact on our business of newly enacted or potential federal, state or local laws governing hydraulic fracturing.

Endangered Species

The federal Endangered Species Act, or ESA, and analogous state laws restrict activities that may affect listed endangered or threatened species or
their habitats. If endangered species are located in areas where we operate, our operations or any work performed related to them could be prohibited or
delayed or expensive mitigation may be required. While some of our operations may be located in areas that are designated as habitats for endangered or
threatened species, we believe that we are in compliance with the ESA. On August 12, 2019, the U.S. Fish and Wildlife Service and the National Oceanic
and  Atmospheric  Administration’s  National  Marine  Fisheries  Service  jointly  published  final  rules  that,  among  other  things,  tighten  the  critical  habitat
designation  process  and  eliminate  certain  automatic  protections  for  threatened  species  going  forward.  Nevertheless,  the  designation  of  previously
unprotected species in areas where we operate as threatened or endangered could result in the imposition of restrictions on our operations and consequently
have a material adverse effect on our business.

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Other Regulation of the Oil and Natural Gas Industry

The oil and natural gas industry is extensively regulated by numerous federal, state and local authorities. Legislation affecting the oil and natural
gas industry is under constant review for amendment or expansion, frequently increasing the regulatory burden. Also, numerous departments and agencies,
both  federal  and  state,  are  authorized  by  statute  to  issue  rules  and  regulations  that  are  binding  on  the  oil  and  natural  gas  industry  and  its  individual
members, some of which carry substantial penalties for failure to comply. Although the regulatory burden on the oil and natural gas industry increases our
cost of doing business and, consequently, affects our profitability, these burdens generally do not affect us any differently or to any greater or lesser extent
than they affect other companies in the industry with similar types, quantities and locations of production.

The availability, terms and cost of transportation significantly affect sales of oil and natural gas. The interstate transportation and sale for resale of
oil and natural gas is subject to federal regulation, including regulation of the terms, conditions and rates for interstate transportation, storage and various
other matters, primarily by FERC. Federal and state regulations govern the price and terms for access to oil and natural gas pipeline transportation. FERC’s
regulations for interstate oil and natural gas transmission in some circumstances may also affect the intrastate transportation of oil and natural gas.

Although oil and natural gas prices are currently unregulated, Congress historically has been active in the area of oil and natural gas regulation.
We cannot predict whether new legislation to regulate oil and natural gas might be proposed, what proposals, if any, might actually be enacted by Congress
or the various state legislatures, and what effect, if any, the proposals might have on our operations. Sales of condensate and oil and natural gas liquids are
not currently regulated and are made at market prices.

Drilling and Production. Our operations are subject to various types of regulation at the federal, state and local level. These types of regulation
include requiring permits for the drilling of wells, drilling bonds and reports concerning operations. The state, and some counties and municipalities, in
which we operate also regulate one or more of the following; the location of wells; the method of drilling and casing wells; the timing of construction or
drilling activities, including seasonal wildlife closures; the rates of production or “allowables”; the surface use and restoration of properties upon which
wells are drilled; the plugging and abandoning of wells; and notice to, and consultation with, surface owners and other third parties.

State laws regulate the size and shape of drilling and spacing units or proration units governing the pooling of oil and natural gas properties. Some
states  allow  forced  pooling  or  integration  of  tracts  to  facilitate  exploration  while  other  states  rely  on  voluntary  pooling  of  lands  and  leases.  In  some
instances,  forced  pooling  or  unitization  may  be  implemented  by  third  parties  and  may  reduce  our  interest  in  the  unitized  properties.  In  addition,  state
conservation laws establish maximum rates of production from oil and natural gas wells, generally prohibit the venting or flaring of natural gas and impose
requirements regarding the ratability of production. These laws and regulations may limit the amount of oil and natural gas we can produce from our wells
or limit the number of wells or the locations at which we can drill. Moreover, each state generally imposes a production or severance tax with respect to the
production and sale of oil, natural gas and natural gas liquids within its jurisdiction. States do not regulate wellhead prices or engage in other similar direct
regulation, but we cannot assure you that they will not do so in the future. The effect of such future regulations may be to limit the amounts of oil and
natural gas that may be produced from our wells, negatively affect the economics of production from these wells or to limit the number of locations we can
drill.

Federal,  state  and  local  regulations  provide  detailed  requirements  for  the  plugging  and  abandonment  of  wells,  closure  or  decommissioning  of
production  facilities  and  pipelines  and  for  site  restoration  in  areas  where  we  operate.  Although  the  Corps  does  not  require  bonds  or  other  financial
assurances, some state agencies and municipalities do have such requirements.

Natural  Gas  Sales  and  Transportation.  Historically,  federal  legislation  and  regulatory  controls  have  affected  the  price  of  the  natural  gas  we
produce and the manner in which we market our production. FERC has jurisdiction over the transportation and sale for resale of natural gas in interstate
commerce by natural gas companies under the Natural Gas Act of 1938 and the Natural Gas Policy Act of 1978. Since 1978, various federal laws have
been enacted which have resulted in the complete removal of all price and non-price controls for sales of domestic natural gas sold in “first sales,” which
include  all  of  our  sales  of  our  own  production.  Under  the  Energy  Policy  Act  of  2005,  FERC  has  substantial  enforcement  authority  to  prohibit  the
manipulation of natural gas markets and enforce its rules and orders, including the ability to assess substantial civil penalties.

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FERC also regulates interstate natural gas transportation rates and service conditions and establishes the terms under which we may use interstate
natural gas pipeline capacity, which affects the marketing of natural gas that we produce, as well as the revenues we receive for sales of our natural gas and
release of our natural gas pipeline capacity. Commencing in 1985, FERC promulgated a series of orders, regulations and rule makings that significantly
fostered  competition  in  the  business  of  transporting  and  marketing  gas.  Today,  interstate  pipeline  companies  are  required  to  provide  nondiscriminatory
transportation services to producers, marketers and other shippers, regardless of whether such shippers are affiliated with an interstate pipeline company.
FERC’s  initiatives  have  led  to  the  development  of  a  competitive,  open  access  market  for  natural  gas  purchases  and  sales  that  permits  all  purchasers  of
natural gas to buy gas directly from third-party sellers other than pipelines. However, the natural gas industry historically has been very heavily regulated;
therefore,  we  cannot  guarantee  that  the  less  stringent  regulatory  approach  currently  pursued  by  FERC  and  Congress  will  continue  indefinitely  into  the
future nor can we determine what effect, if any, future regulatory changes might have on our natural gas related activities.

Under FERC’s current regulatory regime, transmission services are provided on an open-access, non-discriminatory basis at cost-based rates or
negotiated rates. Gathering service, which occurs upstream of jurisdictional transmission services, is regulated by the states onshore and in state waters.
Although its policy is still in flux, FERC has in the past reclassified certain jurisdictional transmission facilities as non-jurisdictional gathering facilities,
which has the tendency to increase our costs of transporting gas to point-of-sale locations.

Natural Gas Gathering. Although FERC has not made a formal determination with respect to the facilities Rattler LLC considers to be natural gas
gathering pipelines, Rattler believes that its natural gas gathering pipelines meet the traditional tests that FERC has used to determine that pipelines perform
primarily  a  gathering  function  and  are,  therefore,  not  subject  to  FERC  jurisdiction.  The  distinction  between  FERC-regulated  interstate  transportation
services and federally unregulated gathering services, however, has been the subject of substantial litigation, and FERC determines whether facilities are
gathering facilities on a case-by-case basis, so the classification and regulation of gathering facilities is subject to change based on future determinations by
FERC, the courts or Congress. If FERC were to consider the status of an individual facility and determine that the facility or services provided by it are not
exempt from FERC regulation under the Natural Gas Act of 1938, or NGA, and that the facility provides interstate transportation service, the rates for, and
terms  and  conditions  of,  services  provided  by  such  facility  would  be  subject  to  regulation  by  FERC  under  the  NGA  or  the  Natural  Gas  Policy  Act,  or
NGPA. Such regulation could decrease revenue, increase operating costs and, depending upon the facility in question, adversely affect results of operations
and cash flow. In addition, if any of the facilities were found to have provided services or otherwise operated in violation of the NGA or NGPA, this could
result in the imposition of substantial civil penalties, as well as a requirement to disgorge revenues collected for such services in excess of the maximum
rates established by FERC.

Even  though  Rattler  LLC  considers  its  natural  gas  gathering  pipelines  to  be  exempt  from  the  jurisdiction  of  FERC  under  the  NGA,  FERC
regulation of interstate natural gas transportation pipelines may indirectly impact gathering services. FERC’s policies and practices across the range of its
natural gas regulatory activities, including, for example, its policies on interstate open access transportation, ratemaking, capacity release and market center
promotion may indirectly affect intrastate markets and gathering services. In recent years, FERC has pursued pro-competitive policies in its regulation of
interstate natural gas pipelines. However, there can be no assurance that the FERC will continue to pursue this approach as it considers matters such as
pipeline rates and rules and policies that may indirectly affect the natural gas gathering services.

Natural gas gathering may receive greater regulatory scrutiny at the state level; therefore, Rattler LLC’s natural gas gathering operations could be
adversely affected should they become subject to the application of state regulation of rates and services. Gathering operations could also be subject to
safety and operational regulations relating to the design, construction, testing, operation, replacement and maintenance of gathering facilities. We cannot
predict what effect, if any, such changes might have on Rattler’s or our operations, but additional capital expenditures and increased operating costs may
result depending on future legislative and regulatory changes.

Oil Sales and Transportation. Sales of crude oil, condensate and natural gas liquids are not currently regulated and are made at negotiated prices.

Nevertheless, Congress could reenact price controls in the future.

Our crude oil sales are affected by the availability, terms and cost of transportation. The transportation of oil in common carrier pipelines is also
subject to rate regulation. FERC regulates interstate oil pipeline transportation rates under the Interstate Commerce Act, and our subsidiary Rattler LLC has
a tariff on file with FERC to perform gathering service in interstate commerce. Intrastate oil pipeline transportation rates are subject to regulation by state
regulatory commissions. The basis for intrastate oil pipeline regulation, and the degree of regulatory oversight and scrutiny given to intrastate oil pipeline
rates,  varies  from  state  to  state.  Insofar  as  effective  interstate  and  intrastate  rates  are  equally  applicable  to  all  comparable  shippers,  we  believe  that  the
regulation  of  oil  transportation  rates  will  not  affect  our  operations  in  any  materially  different  way  than  such  regulation  will  affect  the  operations  of  our
competitors.

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Further, interstate and intrastate common carrier oil pipelines, including our subsidiary Rattler LLC, must provide service on a non-discriminatory
basis. Under this open access standard, common carriers must offer service to all shippers requesting service on the same terms and under the same rates.
When  oil  pipelines  operate  at  full  capacity,  access  is  governed  by  prorationing  provisions  set  forth  in  the  pipelines’  published  tariffs.  Accordingly,  we
believe that access to oil pipeline transportation services generally will be available to us to the same extent as to our competitors.

Safety and Maintenance Regulation. In our midstream operations, Rattler LLC is subject to regulation by the U.S. Department of Transportation,
or DOT, under the Hazardous Liquids Pipeline Safety Act of 1979, or HLPSA, and comparable state statutes with respect to design, installation, testing,
construction, operation, replacement and management of pipeline facilities. HLPSA covers petroleum and petroleum products, including natural gas liquids
and condensate, and requires any entity that owns or operates pipeline facilities to comply with such regulations, to permit access to and copying of records
and to file certain reports and provide information as required by the United States Secretary of Transportation. These regulations include potential fines
and penalties for violations. We believe that we are in compliance in all material respects with these HLPSA regulations.

Rattler LLC is also subject to the Natural Gas Pipeline Safety Act of 1968, or NGPSA, and the Pipeline Safety Improvement Act of 2002. The
NGPSA  regulates  safety  requirements  in  the  design,  construction,  operation  and  maintenance  of  natural  gas  pipeline  facilities  while  the  Pipeline  Safety
Improvement Act establishes mandatory inspections for all United States crude oil and natural gas transportation pipelines and some gathering pipelines in
high-consequence  areas  within  ten  years.  DOT,  through  the  Pipeline  and  Hazardous  Materials  Safety  Administration,  or  PHMSA,  has  developed
regulations implementing the Pipeline Safety Improvement Act that requires pipeline operators to implement integrity management programs, including
more frequent inspections and other safety protections in areas where the consequences of potential pipeline accidents pose the greatest risk to people and
their property.

The Pipeline Safety and Job Creation Act, enacted in 2011, and the Protecting our Infrastructure of Pipelines and Enhancing Safety Act of 2016,
also known as the PIPES Act, enacted in 2016, amended the HLPSA and NGPSA and increased safety regulation. The Pipeline Safety and Job Creation
Act doubles the maximum administrative fines for safety violations from $100,000 to $200,000 for a single violation and from $1.0 million to $2.0 million
for a related series of violations (now increased for inflation to $218,647 and $2,186,465, respectively), and provides that these maximum penalty caps do
not  apply  to  civil  enforcement  actions,  establishes  additional  safety  requirements  for  newly  constructed  pipelines,  and  requires  studies  of  certain  safety
issues  that  could  result  in  the  adoption  of  new  regulatory  requirements  for  existing  pipelines,  including  the  expansion  of  integrity  management,  use  of
automatic and remote-controlled shut-off valves, leak detection systems, sufficiency of existing regulation of gathering pipelines, use of excess flow valves,
verification of maximum allowable operating pressure, incident notification, and other pipeline-safety related requirements. The PIPES Act ensures that the
PHMSA completes the Pipeline Safety and Job Creation Act requirements; reforms PHMSA to be a more dynamic, data-driven regulator; and closes gaps
in federal standards.

PHMSA has undertaken rulemakings to address many areas of this legislation. For example, on October 1, 2019, PHMSA published final rules to
expand its integrity management requirements and impose new pressure testing requirements on regulated pipelines, including certain segments outside
High  Consequence  Areas.  The  rules,  once  effective,  also  extend  reporting  requirements  to  certain  previously  unregulated  gathering  lines.  The  safety
enhancement requirements and other provisions of the Pipeline Safety and Job Creation Act and the PIPES Act, as well as any implementation of PHMSA
rules thereunder and/or related rule making proceedings, could require us to install new or modified safety controls, pursue additional capital projects or
conduct maintenance programs on an accelerated basis, any or all of which tasks could result in our incurring increased operating costs that could have a
material  adverse  effect  on  our  results  of  operations  or  financial  position.  In  addition,  any  material  penalties  or  fines  issued  to  us  under  these  or  other
statutes, rules, regulations or orders could have an adverse impact on our business, financial condition, results of operation and cash flow.

States  are  largely  preempted  by  federal  law  from  regulating  pipeline  safety  but  may  assume  responsibility  for  enforcing  intrastate  pipeline
regulations  at  least  as  stringent  as  the  federal  standards,  and  many  states  have  undertaken  responsibility  to  enforce  the  federal  standards.  The  Railroad
Commission  of  Texas  is  the  agency  vested  with  intrastate  natural  gas  pipeline  regulatory  and  enforcement  authority  in  Texas.  The  Commission’s
regulations  adopt  by  reference  the  minimum  federal  safety  standards  for  the  transportation  of  natural  gas.  In  addition,  on  December  17,  2019,  the
Commission adopted rules requiring that operators of gathering lines take 'appropriate' actions to fix safety hazards. We do not anticipate any significant
problems in complying with applicable federal and state laws and regulations in Texas. Our gathering pipelines have ongoing inspection and compliance
programs designed to keep the facilities in compliance with pipeline safety and pollution control requirements.

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In addition, we are subject to the requirements of the federal Occupational Safety and Health Act, or OSHA, and comparable state statutes, whose
purpose is to protect the health and safety of workers. Moreover, the OSHA hazard communication standard, the EPA community right-to-know regulations
under  Title  III  of  the  federal  Superfund  Amendment  and  Reauthorization  Act  and  comparable  state  statutes  require  that  information  be  maintained
concerning  hazardous  materials  used  or  produced  in  our  operations  and  that  this  information  be  provided  to  employees,  state  and  local  government
authorities and citizens. Rattler LLC and the entities in which it owns an interest are also subject to OSHA Process Safety Management regulations, which
are  designed  to  prevent  or  minimize  the  consequences  of  catastrophic  releases  of  toxic,  reactive,  flammable  or  explosive  chemicals.  These  regulations
apply to any process which involves a chemical at or above specified thresholds, or any process which involves flammable liquid or gas, pressurized tanks,
caverns and wells in excess of 10,000 pounds at various locations. Flammable liquids stored in atmospheric tanks below their normal boiling point without
the benefit of chilling or refrigeration are exempt from these standards. Also, the Department of Homeland Security and other agencies such as the EPA
continue to develop regulations concerning the security of industrial facilities, including crude oil and natural gas facilities. We are subject to a number of
requirements and must prepare Federal Response Plans to comply. We must also prepare Risk Management Plans under the regulations promulgated by the
EPA to implement the requirements under the CAA to prevent the accidental release of extremely hazardous substances. We have an internal program of
inspection  designed  to  monitor  and  enforce  compliance  with  safeguard  and  security  requirements.  We  believe  that  we  are  in  compliance  in  all  material
respects with all applicable laws and regulations relating to safety and security.

State Regulation.  Texas  regulates  the  drilling  for,  and  the  production,  gathering  and  sale  of,  oil  and  natural  gas,  including  imposing  severance
taxes and requirements for obtaining drilling permits. Texas currently imposes a 4.6% severance tax on oil production and a 7.5% severance tax on natural
gas production. States also regulate the method of developing new fields, the spacing and operation of wells and the prevention of waste of oil and natural
gas resources. States may regulate rates of production and may establish maximum daily production allowables from oil and natural gas wells based on
market  demand  or  resource  conservation,  or  both.  States  do  not  regulate  wellhead  prices  or  engage  in  other  similar  direct  economic  regulation,  but  we
cannot  assure  you  that  they  will  not  do  so  in  the  future.  The  effect  of  these  regulations  may  be  to  limit  the  amount  of  oil  and  natural  gas  that  may  be
produced from our wells and to limit the number of wells or locations we can drill.

The petroleum industry is also subject to compliance with various other federal, state and local regulations and laws. Some of those laws relate to

resource conservation and equal employment opportunity. We do not believe that compliance with these laws will have a material adverse effect on us.

Operational Hazards and Insurance

The oil and natural gas industry involves a variety of operating risks, including the risk of fire, explosions, blow outs, pipe failures and, in some
cases, abnormally high pressure formations which could lead to environmental hazards such as oil spills, natural gas leaks and the discharge of toxic gases.
If any of these should occur, we could incur legal defense costs and could be required to pay amounts due to injury, loss of life, damage or destruction to
property, natural resources and equipment, pollution or environmental damage, regulatory investigation and penalties and suspension of operations.

In accordance with what we believe to be industry practice, we maintain insurance against some, but not all, of the operating risks to which our
business  is  exposed.  We  currently  have  insurance  policies  for  onshore  property  (oil  lease  property/production  equipment)  for  selected  locations,  rig
physical damage protection, control of well protection for selected wells, comprehensive general liability, commercial automobile, workers compensation,
pollution liability (claims made coverage with a policy retroactive date), excess umbrella liability and other coverage.

Our  insurance  is  subject  to  exclusion  and  limitations,  and  there  is  no  assurance  that  such  coverage  will  fully  or  adequately  protect  us  against
liability from all potential consequences, damages and losses. Any of these operational hazards could cause a significant disruption to our business. A loss
not  fully  covered  by  insurance  could  have  a  material  adverse  effect  on  our  financial  position,  results  of  operations  and  cash  flows.  See  Item  1A.  “Risk
Factors–Risks Related to the Oil and Natural Gas Industry and Our Business–Operating hazards and uninsured risks may result in substantial losses and
could prevent us from realizing profits.”

We reevaluate the purchase of insurance, policy terms and limits annually. Future insurance coverage for our industry could increase in cost and
may include higher deductibles or retentions. In addition, some forms of insurance may become unavailable in the future or unavailable on terms that we
believe are economically acceptable. No assurance can be given that we will be able to maintain insurance in the future at rates that we consider reasonable
and we may elect to maintain minimal or no insurance coverage. We may not be able to secure additional insurance or bonding that might be required by
new governmental regulations. This may cause us to restrict our operations, which might severely impact our

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financial  position.  The  occurrence  of  a  significant  event,  not  fully  insured  against,  could  have  a  material  adverse  effect  on  our  financial  condition  and
results of operations.

Generally, we also require our third-party vendors to sign master service agreements in which they agree to indemnify us for injuries and deaths of

the service provider’s employees as well as contractors and subcontractors hired by the service provider.

Human Capital

We have developed a culture grounded upon the solid foundation of our core values—leadership, integrity, excellence, people and teamwork—that
are adhered to throughout our company. We set a high bar for all of our employees in terms of how they operate and interact, both within the office and out
in the field. We challenge them to identify new ways to foster a better future for themselves and for us.

As of December 31, 2020, we had approximately 732 full time employees. None of our employees are represented by labor unions or covered by
any collective bargaining agreements. We also utilize independent contractors and consultants involved in land, technical, regulatory and other disciplines
to assist our full-time employees.

Diversity and Inclusion

Equal employment opportunity is one of our core tenets and, as such, our employment decisions are based on merit, qualifications, competencies
and  contributions.  We  actively  seek  to  attract  and  retain  an  increasingly  diverse  workforce  and  continue  to  cultivate  an  inclusive  and  respectful  work
environment. We deeply value the perspectives and experiences from our diverse team and are proud of our team, rich in a range of ethnic, cultural and
ideological  backgrounds.  Nearly  a  third  of  our  employees  are  women  and  25%  self-identify  as  ethnic  minorities.  We  have  taken  various  actions  during
2020  to  increase  the  diversity  in  our  candidate  pool,  and  broaden  our  outreach,  particularly  within  our  intern  program,  through  various  student
organizations to support this inclusion effort.

Health and Safety

Protecting employees, the public and the environment is a top priority in our operations and in the way we manage our assets. We are focused on
minimizing the risk of workplace incidents and preparing for emergencies as an indelible element of our corporate responsibility. We also strive to comply
with all applicable health, safety and environmental standards, laws and regulations.

Through  a  unified  orientation  initiative  called  Basin  United,  we  and  other  oil  and  natural  gas  operators  have  committed  to  reduce  injuries  and
fatalities in our industry. We are aligning our employees and independent contractors around the International Association of Oil & Gas Producers Life
Saving Rules, safety culture improvements, safety leadership actions and human performance principles. We also involve employees from all operational
levels  on  our  Safety  Committee,  which  provides  suggested  improvements  to  the  overall  safety  program,  recommended  preventative  measures  based  on
reviewing vehicle and personnel incidents, safety and environmental audits at operational locations and audit and oversight of the Diamondback Hazard
Communication Program, in accordance with OSHA regulations.

From 2016 through 2020, we had zero employee work-related fatalities. Our employee OSHA recordable cases, comprising work-related injuries
and  illnesses  that  require  medical  treatment  beyond  first  aid,  totaled  three  in  2020,  flat  from  three  in  2019.  Our  employee  total  recordable  incident  rate
(TRIR) in 2020 was flat from 2019 and lost-time incident rate (LTIR) decreased in 2020. We have set a short-term target of maintaining an employee TRIR
of 0.5 or less.

Training and Development

We support employees in pursuing training opportunities to expand their professional skills. Our internal course offerings in 2020 included a wide
array  of  topics  such  as  Excel  Power  Lunch,  Performance  Management,  COVID-19  Safety  Training,  as  well  as  various  and  extensive  safety  and  other
compliance training sessions. In 2020, our team completed nearly 8,000 hours of training. Additionally, our people also undergo training and education
each year on regulatory compliance, industry standards and innovative opportunities to effectively manage the challenges of developing our resources.

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Our Facilities

Our corporate headquarters is located at the Fasken Center in Midland, Texas. We also lease additional office space in Houston, Texas, Midland,

Texas and Oklahoma City, Oklahoma.

Availability of Company Reports

Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports are available
free  of  charge  on  the  Investor  Relations  page  of  our  website  at  www.diamondbackenergy.com  as  soon  as  reasonably  practicable  after  such  material  is
electronically filed with, or furnished to, the SEC. Information contained on, or connected to, our website is not incorporated by reference into this Annual
Report and should not be considered part of this or any other report that we file with or furnish to the SEC.

Risk Factors Summary

The following is a summary of the principal risks that could adversely affect our business, operations and financial results. Please refer to Item 1A

“Risk Factors” of this Form 10-K below for additional discussion of the risks summarized in this Risk Factors Summary.

Risks Relating to the Pending Merger and to Diamondback Following the Completion of the Pending Merger

•

The pending merger may not be completed and the merger agreement may be terminated in accordance with its terms, which could negatively
impact the price of our common stock and our results.

• We will incur significant transaction and merger-related costs in connection with the pending merger.
• We and our subsidiaries will have substantial indebtedness after giving effect to the pending merger, which may limit our financial flexibility and

adversely affect our financial results.

• An adverse ruling in the pending or any future lawsuits relating to the merger could result in an injunction preventing the completion of the merger

and/or substantial costs to us and QEP.

• We may not achieve the intended benefits of the pending merger or do so within the intended timeframe, and it may not be accretive, and may be

•

•

•

•

dilutive, to our earnings per share.
The market price of our common stock will continue to fluctuate after the pending merger is completed, and may decline if the benefits of the
pending merger do not meet the expectations of financial analysts.
Following the completion of the pending merger, we may incorporate QEP’s hedging activities into our business and, as a result, may be exposed
to additional commodity price risks arising from such hedges.
The combined company may record goodwill and other intangible assets that could become impaired and result in material non-cash charges to the
results of operations of the combined company in the future.
The combined company may not be able to retain customers or suppliers, and customers or suppliers may seek to modify contractual obligations
with the combined company, either of which could have an adverse effect on the combined company’s business and operations.

Risks Related to the Oil and Natural Gas Industry and Our Business

• Our business and operations have been and will likely continue to be adversely affected by the ongoing COVID-19 pandemic.
• Market  conditions  and  particularly  volatility  in  prices  for  oil  and  natural  gas  may  continue  to  adversely  affect  our  revenue,  cash  flows,

profitability, growth, production and the present value of our estimated reserves.

• We may be unable to obtain needed capital or financing on satisfactory terms or at all to fund our acquisitions or development activities, which

could lead to a loss of properties and a decline in our oil and natural gas reserves and future production.

• Our failure to successfully identify, complete and integrate pending and future acquisitions of properties or businesses could reduce our earnings,

and title defects in the properties in which we invest may lead to losses.

• Our identified potential drilling locations are susceptible to uncertainties that could materially alter the occurrence or timing of their drilling.
• Despite our hedging activities, we may be adversely affected by continuing and prolonged declines in the price of oil and may be exposed to other

•

•

risks, including counterparty credit risk.
If production from our Permian Basin acreage decreases, we may fail to meet our obligations to deliver specified quantities of oil under our oil
purchase contract, which may adversely affect our operations.
The inability of one or more of our customers to meet their obligations, or loss of one or more of our significant purchasers, may adversely affect
our financial results.

• Our method of accounting for investments in oil and natural gas properties may result in impairment of asset value.

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• Any  material  inaccuracies  in  these  reserve  estimates  or  underlying  assumptions  will  materially  affect  the  quantities  and  present  value  of  our

reserves.

• We are vulnerable to risks associated with our primary operations concentrated in a single geographic area.
•

If transportation or other facilities, certain of which we do not control, or rigs, equipment, raw materials, oil services or personnel are unavailable,
our operations could be interrupted and our revenues reduced.

• Our operations are subject to various governmental laws and regulations which require compliance that can be burdensome and expensive and

may impose restrictions on our operations.
Recent and future U.S. tax legislation may adversely affect our business, results of operations, financial condition and cash flow.

•
• Drilling  for  and  producing  oil  and  natural  gas  are  high-risk  activities  with  many  uncertainties  that  may  result  in  a  total  loss  of  investment  and

adversely affect our business, financial condition or results of operations.

• A terrorist attack or armed conflict could harm our business and could adversely affect our business.
• A cyber incident could result in information theft, data corruption, operational disruption and/or financial loss.

Risks Related to Our Indebtedness

• Our  substantial  level  of  indebtedness  could  adversely  affect  our  financial  condition  and  prevent  us  from  fulfilling  our  obligations  under  our

indebtedness, and we and our subsidiaries may be able to incur substantial additional indebtedness in the future.

• A reduction in availability under our revolving credit facility and the inability to otherwise obtain financing for our capital programs could require

•

us to curtail our capital expenditures.
Restrictive covenants in certain of our existing and future debt instruments may limit our ability to respond to changes in market conditions or
pursue business opportunities.

• We depend on our subsidiaries for dividends, distributions and other payments.
•

If we experience liquidity concerns, we could face a downgrade in our debt ratings which could restrict our access to, and negatively impact the
terms of, current or future financings or trade credit.
Borrowings under our, Viper LLC’s and Rattler LLC’s revolving credit facilities expose us to interest rate risk.

•

Risks Related to Our Common Stock

•

•
•

The corporate opportunity provisions in our certificate of incorporation could enable affiliates of ours to benefit from corporate opportunities that
might otherwise be available to us.
If the price of our common stock fluctuates significantly, your investment could lose value.
The declaration of dividends and any repurchases of our common stock are each within the discretion of our board of directors, and there is no
guarantee that we will pay any dividends on or repurchases of our common stock in the future or at levels anticipated by our stockholders.

• A change of control could limit our use of net operating losses.
•
If our operating results do not meet expectations of securities or industry analysts, our stock price could decline.
• We may issue preferred stock whose terms could adversely affect the voting power or value of our common stock.
•

Provisions in our certificate of incorporation and bylaws and Delaware law make it more difficult to effect a change in control of the company,
which could adversely affect the price of our common stock.

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ITEM 1A. RISK FACTORS

The nature of our business activities subjects us to certain hazards and risks. The following is a summary of some of the material risks relating to
our  business  activities.  Other  risks  are  described  in  Item  1.  “Business  and  Properties,”  Item  7.  “Management’s  Discussion  and  Analysis  of  Financial
Condition and Results of Operations” and Item 7A. “Quantitative and Qualitative Disclosures About Market Risk.” These risks are not the only risks we
face.  We  could  also  face  additional  risks  and  uncertainties  not  currently  known  to  us  or  that  we  currently  deem  to  be  immaterial.  If  any  of  these  risks
actually occurs, it could materially harm our business, financial condition or results of operations and the trading price of our shares could decline.

Risks Relating to the Pending Merger

The pending merger may not be completed and the merger agreement may be terminated in accordance with its terms. Failure to complete the pending
merger could negatively impact the price of shares of our common stock and our future businesses and financial results.

The  pending  merger  is  subject  to  a  number  of  conditions  that  must  be  satisfied,  including  the  approval  by  QEP  stockholders  of  the  merger
agreement proposal, or, to the extent permitted by applicable law, waived, in each case prior to the completion of the pending merger. The conditions to the
completion of the pending merger, some of which are beyond our control, may not be satisfied or waived in a timely manner or at all, and, accordingly, the
pending merger may be delayed or may not be completed.

In addition, if the pending merger is not completed by June 30, 2021, or, in certain instances, on or before September 30, 2021, either we or QEP
may  choose  not  to  proceed  with  the  pending  merger  by  terminating  the  merger  agreement,  and  the  parties  can  mutually  decide  to  terminate  the  merger
agreement  at  any  time,  before  or  after  stockholder  approval.  Further,  either  we  or  QEP  may  elect  to  terminate  the  merger  agreement  in  certain  other
circumstances specified in the merger agreement. If the transactions contemplated by the merger agreement are not completed for any reason, our ongoing
business, financial condition and financial results may be adversely affected. Without realizing any of the benefits of having completed the transactions, we
will be subject to a number of risks, including the following:

• we may be required to pay our costs relating to the transactions, which are substantial, such as legal, accounting, financial advisory and printing

•

fees, whether or not the transactions are completed;
time  and  resources  committed  by  our  management  to  matters  relating  to  the  transactions  could  otherwise  have  been  devoted  to  pursuing  other
beneficial opportunities;

• we  may  experience  negative  reactions  from  financial  markets,  including  negative  impacts  on  the  price  of  our  common  stock,  including  to  the

extent that the current market price reflects a market assumption that the transactions will be completed;

• we may experience negative reactions from employees, customers or vendors; and
•

since the merger agreement restricts the conduct of our business prior to completion of the pending merger, we may not have been able to take
certain  actions  during  the  pendency  of  the  merger  that  would  have  benefitted  us  as  an  independent  company  and  the  opportunity  to  take  such
actions may no longer be available.

We will be subject to business uncertainties while the merger is pending, which could adversely affect our business.

Uncertainty about the effect of the pending merger on employees, industry contacts and business partners may have an adverse effect on us. These
uncertainties may impair our ability to attract, retain and motivate key personnel until the pending merger is completed and for a period of time thereafter
and could cause industry contacts, business partners and others that deal with us to seek to change their existing business relationships with us. In addition,
the  merger  agreement  restricts  the  parties  to  the  merger  agreement  from  entering  into  certain  corporate  transactions  and  taking  other  specified  actions
without  the  consent  of  the  other  party.  These  restrictions  may  prevent  us  from  pursuing  attractive  business  opportunities  that  may  arise  prior  to  the
completion of the pending merger.

We will incur significant transaction and merger-related costs in connection with the pending merger, which may be in excess of those anticipated by
us.

We have incurred and expect to continue to incur a number of non-recurring costs associated with negotiating and completing the pending merger,
combining the operations of the two companies and achieving desired synergies. These fees and costs have been, and will continue to be, substantial. The
substantial majority of non-recurring expenses will consist of transaction costs related to the pending merger and include, among others, employee retention
costs, fees paid to financial, legal and accounting advisors, severance and benefit costs and filing fees.

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We  will  also  incur  transaction  fees  and  costs  related  to  the  integration  of  the  companies,  which  may  be  substantial.  Moreover,  we  may  incur
additional  unanticipated  expenses  in  connection  with  the  pending  merger  and  the  integration,  including  costs  associated  with  any  stockholder  litigation
related to the pending merger. Although we expect that the elimination of duplicative costs, as well as the realization of other efficiencies related to the
integration of the businesses, should allow us to offset integration-related costs over time, this net benefit may not be achieved in the near term, or at all.
The costs described above, as well as other unanticipated costs and expenses, could have a material adverse effect on the financial condition and operating
results of the combined company following the completion of the pending merger.

We  and  our  subsidiaries  will  have  substantial  indebtedness  after  giving  effect  to  the  pending  merger,  which  may  limit  our  financial  flexibility  and
adversely affect our financial results.

Under the merger agreement, QEP’s outstanding debt (other than its existing credit facility) will remain outstanding, which debt, as of December
31, 2020 was approximately $1.6 billion and consisted of amounts outstanding under QEP’s senior notes. As of December 31, 2020, we had total long-term
debt of approximately $5.6 billion, consisting primarily of the amounts outstanding under our revolving credit facility, our senior unsecured notes, the notes
issued by our subsidiary Energen Corporation, the senior notes issued by our publicly traded subsidiaries, Viper and Rattler, and the amounts outstanding
under Viper’s and Rattler’s revolving credit facilities.

Our  pro  forma  indebtedness  as  of  December  31,  2020,  assuming  consummation  of  the  pending  merger  had  occurred  on  such  date  and  QEP’s
senior  notes  remain  outstanding,  would  have  been  approximately  $7.4  billion,  representing  an  increase  in  comparison  to  our  indebtedness  on  a  recent
historical basis. We believe that post-merger we will retain our investment grade credit ratings and retire the combined company’s pro forma debt at a faster
rate than either company would have been able to do absent the pending merger. However, any increase in our indebtedness could have adverse effects on
our financial condition and results of operations, including:

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increasing difficulty to satisfy our obligations with respect to our debt obligations, including any repurchase obligations that may arise thereunder;
diverting a significant portion of our cash flows to service our indebtedness, which could reduce the funds available to us for operations and other
purposes;
increasing our vulnerability to general adverse economic and industry conditions;
placing  us  at  a  competitive  disadvantage  compared  to  our  competitors  that  are  less  leveraged  and,  therefore,  may  be  able  to  take  advantage  of
opportunities that we would be unable to pursue due to our indebtedness;
limiting our ability to access the capital markets to raise capital on favorable terms;
impairing our ability to obtain additional financing in the future for working capital, capital expenditures, acquisitions, general corporate or other
purposes; and
increasing our vulnerability to interest rate increases, as our borrowings under our revolving credit facility are at variable interest rates.

We  believe  that  the  combined  company  will  have  flexibility  to  repay,  refinance,  repurchase,  redeem,  exchange  or  otherwise  terminate  large
portions of our outstanding debt obligations. However, there can be no guarantee that we would be able to execute such refinancings on favorable terms or
at all, and a high level of indebtedness increases the risk that we may default on our debt obligations, including from the debt obligations of QEP. Our
ability to meet our debt obligations and to reduce our level of indebtedness depends on our future performance. Our future performance depends on many
factors independent of the pending merger, some of which are beyond our control, such as general economic conditions and oil and natural gas prices. We
may not be able to generate sufficient cash flows to pay the interest on our debt, and future working capital, borrowings or equity financing may not be
available to pay or refinance such debt.

Lawsuits have been filed against QEP, us, Merger Sub and the members of the QEP board in connection with the merger and additional lawsuits may
be filed in the future. An adverse ruling in any such lawsuit could result in an injunction preventing the completion of the merger and/or substantial
costs to us and QEP.

Securities class action lawsuits and derivative lawsuits are often brought against public companies that have entered into acquisition, merger or
other business combination agreements like the merger agreement. Even if such a lawsuit is without merit, defending against these claims can result in
substantial costs and divert management time and resources.

As of February 22, 2021, nine individual lawsuits have been filed by purported QEP stockholders in United States District Courts in connection
with the proposed merger. All nine lawsuits name QEP and the members of the QEP board as defendants, and two of the nine lawsuits name us and Merger
Sub as defendants. The complaints allege, among other things, that the registration statements relating to the merger on Form S-4 filed by us on January 22,
2021, as amended on Form S-4/A filed on February 3, 2021, and the Schedule 14A Definitive Proxy Statement filed by QEP on February 10, 2021 fail to
provide certain allegedly material information concerning the proposed merger in violation of Sections 14(a) and 20(a) of the Exchange Act and Rule 14a-9
promulgated  thereunder.  In  addition  to  these  allegations,  some  of  the  complaints  allege  that  the  merger  consideration  to  be  received  by  the  QEP
stockholders in the merger is unfair because the value of the QEP common

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stock is in excess of the value of the merger consideration, that the "no solicitation" clause in the merger agreement is improper and that the termination fee
contemplated by the merger agreement is excessive. Some of the complaints also assert a breach of fiduciary duty claim under state law against individual
QEP board members. Among other remedies, the plaintiffs seek to enjoin the completion of the proposed merger, a recission of the completed merger or
rescissory damages, an accounting of damages suffered by the plaintiff, an award of plaintiff’s expenses and attorney’s fees, and other relief.

Each of us and QEP believes that the allegations in the complaints are without merit. Additional lawsuits arising out of the merger may also be

filed in the future.

One of the conditions to the closing of the merger is that no injunction by any governmental entity having jurisdiction over us, QEP or Merger Sub
has  been  entered  and  continues  to  be  in  effect  and  no  law  has  been  adopted,  in  either  case  that  prohibits  the  closing  of  the  merger.  Consequently,  if  a
plaintiff  is  successful  in  obtaining  an  injunction  prohibiting  completion  of  the  merger,  that  injunction  may  delay  or  prevent  the  merger  from  being
completed within the expected timeframe or at all, which may adversely affect our business, financial position and results of operations.

Additionally, there can be no assurance that any of the defendants will be successful in the outcome of the lawsuits filed thus far or any potential
future lawsuits. The defense or settlement of any lawsuit or claim that remains unresolved at the time the merger is completed may adversely affect our
business, financial condition, results of operations and cash flows.

Risk Factors Relating to Diamondback Following the Completion of the Pending Merger

The integration of QEP into our business may not be as successful as anticipated, and we may not achieve the intended benefits or do so within the
intended timeframe.

The pending merger involves numerous operational, strategic, financial, accounting, legal, tax and other risks, potential liabilities associated with
the  acquired  businesses,  and  uncertainties  related  to  design,  operation  and  integration  of  QEP’s  internal  control  over  financial  reporting.  Difficulties  in
integrating  QEP  into  our  business  may  result  in  us  performing  differently  than  expected,  operational  challenges,  or  the  failure  to  realize  anticipated
expense-related efficiencies. Potential difficulties that may be encountered in the integration process include, among others:

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the inability to successfully integrate QEP into our business in a manner that permits us to achieve the full revenue and cost savings anticipated
from the pending merger;
complexities associated with managing the larger, more complex, integrated business;
not realizing anticipated operating synergies;
integrating personnel from the two companies and the loss of key employees;
potential unknown liabilities and unforeseen expenses, delays or regulatory conditions associated with the pending merger;
integrating relationships with industry contacts and business partners;
performance  shortfalls  as  a  result  of  the  diversion  of  management’s  attention  caused  by  completing  the  pending  merger  and  integrating  QEP’s
operations into our operations; and
the disruption of, or the loss of momentum in, ongoing business or inconsistencies in standards, controls, procedures and policies.

Additionally,  the  success  of  the  pending  merger  will  depend,  in  part,  on  our  ability  to  realize  the  anticipated  benefits  and  cost  savings  from
combining  our  and  QEP’s  businesses,  including  operational  and  other  synergies  that  we  believe  the  combined  company  will  achieve.  The  anticipated
benefits and cost savings of the pending merger may not be realized fully or at all, may take longer to realize than expected, or could have other adverse
effects that we do not currently foresee.

Our results may suffer if we do not effectively manage our expanded operations following the pending merger.

The success of the pending merger will depend, in part, on our ability to realize the anticipated benefits and cost savings from combining our and
QEP’s businesses,  including  the  need  to  integrate  the  operations  and  business  of  QEP  into  our  existing  business  in  an  efficient  and  timely  manner,  to
combine systems and management controls and to integrate relationships with customers, vendors, industry contacts and business partners.

The anticipated benefits and cost savings of the pending merger may not be realized fully or at all, may take longer to realize than expected or
could  have  other  adverse  effects  that  we  do  not  currently  foresee.  Some  of  the  assumptions  that  we  have  made,  such  as  the  achievement  of  operating
synergies,  may  not  be  realized.  There  could  also  be  unknown  liabilities  and  unforeseen  expenses  associated  with  the  pending  merger  that  were  not
discovered in the due diligence review conducted by each company prior to entering into the merger agreement.

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The pending merger may not be accretive, and may be dilutive, to our earnings per share, which may negatively affect the market price of our common
stock.

Because  shares  of  our  common  stock  will  be  issued  in  the  pending  merger,  it  is  possible  that,  although  we  currently  expect  the  merger  to  be

accretive to earnings per share, the merger may be dilutive to our earnings per share, which could negatively affect the market price of our common stock.

In  connection  with  the  completion  of  the  pending  merger,  based  on  the  number  of  issued  and  outstanding  shares  of  QEP  common  stock  as  of
February 22, 2021 and the number of outstanding QEP equity awards currently estimated to be payable in our common stock following the merger, we will
issue  up  to  approximately  12.4  million  shares  of  our  common  stock.  The  issuance  of  these  new  shares  of  our  common  stock  could  have  the  effect  of
depressing the market price of our common stock, through dilution of earnings per share or otherwise. Any dilution of, or delay of any accretion to, our
earnings per share could cause the price of shares of our common stock to decline or increase at a reduced rate.

Furthermore,  our  current  stockholders  may  not  wish  to  continue  to  invest  in  the  additional  operations  of  the  combined  company,  or  for  other
reasons may wish to dispose of some or all of their interests in the combined company, and as a result may seek to sell their shares of our common stock
following, or in anticipation of, completion of the pending merger. The merger agreement does not restrict the ability of former QEP stockholders to sell
such  shares  of  our  common  stock  following  completion  of  the  pending  merger.  Therefore,  these  sales  (or  the  perception  that  these  sales  may  occur),
coupled with the increase in the outstanding number of shares of our common stock, may affect the market for, and the market price of, our common stock
in an adverse manner.

If the pending merger is completed and our stockholders, including former QEP stockholders, sell substantial amounts of our common stock in the
public market following the consummation of the pending merger, the market price of our common stock may decrease. These sales might also make it
more difficult for us to raise capital by selling equity or equity-related securities at a time and price that it otherwise would deem appropriate.

The market price of our common stock will continue to fluctuate after the pending merger, and may decline if the benefits of the pending merger do not
meet the expectations of financial analysts.

Upon completion of the pending merger, holders of QEP common stock who receive merger consideration will become holders of shares of our
common  stock.  The  market  price  of  our  common  stock  may  fluctuate  significantly  following  completion  of  the  pending  merger  and  holders  of  QEP
common  stock  could  lose  some  or  all  of  the  value  of  their  investment  in  our  common  stock.  In  addition,  the  stock  market  has  recently  experienced
significant price and volume fluctuations which could, if such fluctuations continue to occur, have a material adverse effect on the market for, or liquidity
of, our common stock, regardless of our actual operating performance.

The market price of our common stock may be affected by factors different from those that historically have affected QEP common stock or our
common stock.

Our business differs from that of QEP in certain respects, and, accordingly, our financial position or results of operations and/or cash flows after
the pending merger is completed, as well as the market price of our common stock, may be affected by factors different from those currently affecting our
financial position or results of operations and/or cash flows as an independent standalone company.

Following the completion of the pending merger, we may incorporate QEP’s hedging activities into our business and, as a result, may be exposed to
additional commodity price risks arising from such hedges.

To mitigate its exposure to changes in commodity prices, QEP hedges oil and natural gas prices from time to time, primarily through the use of
certain  derivative  instruments.  If  we  assume  QEP’s  existing  derivative  instruments  or  if  QEP  enters  into  additional  derivative  instruments  prior  to  the
completion of the pending merger, we will bear the economic impact of the contracts following the completion of the pending merger. Actual crude oil and
natural gas prices may differ from the combined company’s expectations and, as a result, such derivative instruments may have a negative impact on our
business.

The combined company may record goodwill and other intangible assets that could become impaired and result in material non-cash charges to the
results of operations of the combined company in the future.

The pending merger will be accounted for as an acquisition by us in accordance with GAAP. Under the acquisition method of accounting, the
assets and liabilities of QEP and its subsidiaries will be recorded, as of completion of the pending merger, at their respective fair values and added to those
of  us.  Our  reported  financial  condition  and  results  of  operations  for  the  periods  after  completion  of  the  pending  merger  will  reflect  QEP  balances  and
results after completion of the pending

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merger but will not be restated retroactively to reflect the historical financial position or results of operations of QEP and its subsidiaries for periods prior to
the completion of the pending merger.

Under  the  acquisition  method  of  accounting,  the  total  purchase  price  will  be  allocated  to  QEP’s  tangible  assets  and  liabilities  and  identifiable
intangible assets based on their fair values as of the date of completion of the pending merger. The excess of the purchase price over those fair values will
be recorded as goodwill. We expect that the pending merger may result in the creation of goodwill based upon the application of the acquisition method of
accounting.  To  the  extent  goodwill  or  intangibles  are  recorded  and  the  values  become  impaired,  the  combined  company  may  be  required  to  recognize
material non-cash charges relating to such impairment. The combined company’s operating results may be significantly impacted from both the impairment
and underlying trends in the business that triggered the impairment.

The combined company may not be able to retain customers or suppliers, and customers or suppliers may seek to modify contractual obligations with
the combined company, either of which could have an adverse effect on the combined company’s business and operations. Third parties may terminate
or alter existing contracts or relationships with us as a result of the pending merger.

As a result of the pending merger, the combined company may experience impacts on relationships with customers and suppliers that may harm
the  combined  company’s  business  and  results  of  operations.  Certain  customers  or  suppliers  may  seek  to  terminate  or  modify  contractual  obligations
following the completion of the pending merger whether or not contractual rights are triggered as a result of the pending merger. There can be no guarantee
that customers and suppliers will remain with or continue to have a relationship with the combined company or do so on the same or similar contractual
terms following the closing of the pending merger. If any customers or suppliers seek to terminate or modify contractual obligations or discontinue their
relationships with the combined company, then the combined company’s business and results of operations may be harmed. If the combined company’s
suppliers  were  to  seek  to  terminate  or  modify  an  arrangement  with  the  combined  company,  then  the  combined  company  may  be  unable  to  procure
necessary supplies or services from other suppliers in a timely and efficient manner and on acceptable terms, or at all.

QEP also has contracts with vendors, landlords, licensors and other business partners which may require QEP to obtain consent from these other
parties in connection with the pending merger. If these consents cannot be obtained, the combined company may suffer a loss of potential future revenue,
incur costs and/or lose rights that may be material to the business of the combined company. In addition, third parties with whom Diamondback or QEP
currently have relationships may terminate or otherwise reduce the scope of their relationship with either party in anticipation of the closing of the pending
merger. Any such disruptions could limit the combined company’s ability to achieve the anticipated benefits of the pending merger. The adverse effect of
any such disruptions could also be exacerbated by a delay in the completion of the pending merger or by a termination of the merger agreement.

Declaration, payment and amounts of dividends, if any, distributed to our stockholders will be uncertain.

Although we have paid cash dividends on our common stock in the past, our board of directors may determine not to declare dividends in the
future or may reduce the amount of dividends paid in the future. Any payment of future dividends will be at the discretion of our board of directors and will
depend  on  our  results  of  operations,  financial  condition,  cash  requirements,  future  prospects  and  other  considerations  that  our  board  of  directors  deems
relevant.

Our business and operations have been and will likely continue to be adversely affected by the ongoing COVID-19 pandemic.

Risks Related to the Oil and Natural Gas Industry and Our Business

The spread of COVID-19 caused, and is continuing to cause, severe disruptions in the worldwide and U.S. economies, including contributing to
the reduced global and domestic demand for oil and natural gas, which has had and will likely continue to have an adverse effect on our business, financial
condition  and  results  of  operations.  Moreover,  since  the  beginning  of  January  2020,  the  COVID-19  pandemic  has  caused  significant  disruption  in  the
financial markets both globally and in the United States. The continued spread of COVID-19 could also negatively impact the availability of key personnel
necessary  to  conduct  our  business.  If  COVID-19  continues  to  spread  or  the  response  to  contain  or  mitigate  the  COVID-19  pandemic  through  the
development and availability of effective treatments and vaccines, including the vaccines recently approved by the FDA for emergency use in the U.S., is
unsuccessful,  we  could  continue  to  experience  material  adverse  effects  on  our  business,  financial  condition  and  results  of  operations.  Due  to  the  rapid
development and fluidity of this situation, we cannot make any prediction as to the ultimate material adverse impact of the COVID -19 pandemic on our
business, financial condition and results of operations.

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The sharp decline in oil and natural gas prices and continued volatility in the oil and natural gas markets have negatively impacted, and are likely to
continue to negatively impact, our exploration and production activities, which has adversely impacted our business, financial condition and results of
operations. In addition, lower oil and natural gas prices may adversely affect the borrowing base under our revolving credit facility and estimates of
our proved reserves.

In  early  March  2020,  oil  prices  dropped  sharply  and  then  continued  to  decline  reaching  negative  levels.  This  was  a  result  of  multiple  factors
affecting the supply and demand in global oil and natural gas markets, including actions taken by OPEC members and other exporting nations impacting
commodity price and production levels and a significant decrease in demand due to the ongoing COVID-19 pandemic. While OPEC members and certain
other nations agreed in April 2020 to cut production and subsequently extended such production cuts through December 2020, which helped to reduce a
portion of the excess supply in the market and improve crude oil prices, they agreed to increase production by 500,000 barrels per day beginning in January
2021. As  a  result,  downward  pressure  on  commodity  prices  has  continued  and  could  continue  for  the  foreseeable  future.  We  cannot  predict  if  or  when
commodity prices will stabilize and at what levels.

As a result of the reduction in crude oil demand caused by factors discussed above, we lowered our 2020 capital budget and production guidance,
curtailed near term production and reduced our rig count, all of which may be subject to further reductions or curtailments if the commodity markets and
macroeconomic  conditions  worsen.  Although  we  have  restored  our  curtailed  production,  actions  taken  in  response  to  the  COVID-19  pandemic  and
depressed  commodity  pricing  environment  have  had  and  are  expected  to  continue  to  have  an  adverse  effect  on  our  business,  financial  results  and  cash
flows.

Based on the results of the quarterly ceiling test, we were required to record an impairment on our proved oil and natural gas interests for the year
ended December 31, 2020. If commodity prices fall below current levels, we may be required to record impairments in future periods and such impairments
could be material. Further, if commodity prices decrease, our production, proved reserves and cash flows will be adversely impacted.

Other significant factors that are likely to continue to affect commodity prices in future periods include, but are not limited to, the effect of U.S.
energy, monetary and trade policies, U.S. and global political and economic developments, including the Biden Administration’s energy and environmental
policies and the impact of the ongoing COVID-19 pandemic on conditions in the U.S. oil and natural gas industry, all of which are beyond our control.

Our results of operations may be also adversely impacted by any future government rule, regulation or order that may impose production limits, as

well as pipeline capacity and storage constraints, in the Permian Basin where we operate.

We cannot predict the ultimate impact of these factors on our business, financial condition and results of operation.

Increased costs of capital could adversely affect our business.

Our business could be harmed by factors such as the availability, terms and cost of capital, increases in interest rates or a reduction in our credit
rating. Changes in any one or more of these factors could cause our cost of doing business to increase, limit our access to capital, limit our ability to pursue
acquisition opportunities, reduce our cash flows available for drilling and place us at a competitive disadvantage. Continuing disruptions and volatility in
the global financial markets may lead to an increase in interest rates or a contraction in credit availability impacting our ability to finance our activities. A
significant reduction in the availability of credit could materially and adversely affect our ability to achieve our business strategy and cash flows.
Market conditions for oil and natural gas, and particularly volatility in prices for oil and natural gas, have in the past adversely affected, and may in
the future adversely affect, our revenue, cash flows, profitability, growth, production and the present value of our estimated reserves.

Our revenues, operating results, profitability, future rate of growth and the carrying value of our oil and natural gas properties depend significantly
upon the prevailing prices for oil and natural gas. Historically, oil and natural gas prices have been volatile and are subject to fluctuations in response to
changes  in  supply  and  demand,  market  uncertainty  and  a  variety  of  additional  factors  that  are  beyond  our  control,  including;  the  domestic  and  foreign
supply  of  oil  and  natural  gas;  the  level  of  prices  and  expectations  about  future  prices  of  oil  and  natural  gas;  the  level  of  global  oil  and  natural  gas
exploration and production; the cost of exploring for, developing, producing and delivering oil and natural gas; the price and quantity of foreign imports;
political and economic conditions in oil producing countries, including the Middle East, Africa, South America and Russia; the ability of members of the
Organization of Petroleum Exporting Countries to agree to and maintain oil price and production controls; speculative trading in crude oil and natural gas
derivative contracts; the level of consumer

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product  demand;  extreme  weather  conditions  and  other  natural  disasters;  risks  associated  with  operating  drilling  rigs;  technological  advances  affecting
energy  consumption;  the  price  and  availability  of  alternative  fuels;  domestic  and  foreign  governmental  regulations  and  taxes;  the  continued  threat  of
terrorism and the impact of military and other action, including U.S. military operations in the Middle East; global or national health concerns, including
the outbreak of pandemic or contagious disease, such as COVID-19; the proximity, cost, availability and capacity of oil and natural gas pipelines and other
transportation facilities; and overall domestic and global economic conditions.

These factors and the volatility of the energy markets make it extremely difficult to predict future oil and natural gas price movements with any
certainty. During 2020, NYMEX WTI prices ranged from $(37.63) to $63.27 per Bbl and the NYMEX Henry Hub price of natural gas ranged from $1.48
to $3.35 per MMBtu. If the prices of oil and natural gas decline further, our operations, financial condition and level of expenditures for the development of
our oil and natural gas reserves may be materially and adversely affected.

In addition, lower oil and natural gas prices may reduce the amount of oil and natural gas that we can produce economically. This may result in
our  having  to  make  substantial  downward  adjustments  to  our  estimated  proved  reserves.  If  this  occurs  or  if  our  production  estimates  change  or  our
exploration or development activities are curtailed, full cost accounting rules may require us to write-down, as a non-cash charge to earnings, the carrying
value of our oil and natural gas properties. Reductions in our reserves could also negatively impact the borrowing base under our revolving credit facility,
which could further limit our liquidity and ability to conduct additional exploration and development activities.

A  significant  portion  of  our  net  leasehold  acreage  is  undeveloped,  and  that  acreage  may  not  ultimately  be  developed  or  become  commercially
productive, which could cause us to lose rights under our leases as well as have a material adverse effect on our oil and natural gas reserves and future
production and, therefore, our future cash flow and income.

A significant portion of our net leasehold acreage is undeveloped, or acreage on which wells have not been drilled or completed to a point that
would permit the production of commercial quantities of oil and natural gas regardless of whether such acreage contains proved reserves. In addition, many
of our oil and natural gas leases require us to drill wells that are commercially productive, and if we are unsuccessful in drilling such wells, we could lose
our rights under such leases. Our future oil and natural gas reserves and production and, therefore, our future cash flow and income are highly dependent on
successfully developing our undeveloped leasehold acreage.

Our development and exploration operations and our ability to complete acquisitions require substantial capital and we may be unable to obtain needed
capital or financing on satisfactory terms or at all, which could lead to a loss of properties and a decline in our oil and natural gas reserves.

The oil and natural gas industry is capital intensive. We make and expect to continue to make substantial capital expenditures in our business and
operations  for  the  exploration  for  and  development,  production  and  acquisition  of  oil  and  natural  gas  reserves.  In  2020,  our  total  capital  expenditures,
including expenditures for drilling, infrastructure and additions to midstream assets, were approximately $1.9 billion. Our 2021 capital budget for drilling,
completion and infrastructure, including investments in water disposal infrastructure and gathering line projects, is currently estimated to be approximately
$1.4 billion to $1.6 billion, representing a decrease of 50% from our 2020 capital budget. Since completing our initial public offering in October 2012, we
have financed capital expenditures primarily with borrowings under our revolving credit facility, cash generated by operations and the net proceeds from
public offerings of our common stock and the senior notes.

We intend to finance our future capital expenditures for our drilling operations with cash flow from operations, while future acquisitions may also
be funded from operations as well as proceeds from offerings of our debt and equity securities and borrowings under our revolving credit facility. Our cash
flow from operations and access to capital are subject to a number of variables, including; our proved reserves; the volume of oil and natural gas we are
able  to  produce  from  existing  wells;  the  prices  at  which  our  oil  and  natural  gas  are  sold;  our  ability  to  acquire,  locate  and  produce  economically  new
reserves; and our ability to borrow under our credit facility.

We cannot assure you that our operations and other capital resources will provide cash in sufficient amounts to maintain planned or future levels of
capital  expenditures.  Further,  our  actual  capital  expenditures  in  2021  could  exceed  our  capital  expenditure  budget.  In  the  event  our  capital  expenditure
requirements at any time are greater than the amount of capital we have available, we could be required to seek additional sources of capital, which may
include traditional reserve base borrowings, debt financing, joint venture partnerships, production payment financings, sales of assets, offerings of debt or
equity securities or other means. We cannot assure you that we will be able to obtain debt or equity financing on terms favorable to us, or at all.

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If we are unable to fund our capital requirements, we may be required to curtail our operations relating to the exploration and development of our
prospects, which in turn could lead to a possible loss of properties and a decline in our oil and natural gas reserves, or we may be otherwise unable to
implement  our  development  plan,  complete  acquisitions  or  take  advantage  of  business  opportunities  or  respond  to  competitive  pressures,  any  of  which
could have a material adverse effect on our production, revenues and results of operations. In addition, a delay in or the failure to complete proposed or
future infrastructure projects could delay or eliminate potential efficiencies and related cost savings.

Our success depends on finding, developing or acquiring additional reserves.

Our future success depends upon our ability to find, develop or acquire additional oil and natural gas reserves that are economically recoverable.
Our proved reserves will generally decline as reserves are depleted, except to the extent that we conduct successful exploration or development activities or
acquire properties containing proved reserves, or both. To increase reserves and production, we undertake development, exploration and other replacement
activities or use third parties to accomplish these activities. We have made, and expect to make in the future, substantial capital expenditures in our business
and operations for the development, production, exploration and acquisition of oil and natural gas reserves. We may not have sufficient resources to acquire
additional  reserves  or  to  undertake  exploration,  development,  production  or  other  replacement  activities,  such  activities  may  not  result  in  significant
additional reserves and we may not have success drilling productive wells at low finding and development costs. If we are unable to replace our current
production,  the  value  of  our  reserves  will  decrease,  and  our  business,  financial  condition  and  results  of  operations  would  be  adversely
affected. Furthermore, although our revenues may increase if prevailing oil and natural gas prices increase significantly, our finding costs for additional
reserves could also increase.

Our failure to successfully identify, complete and integrate pending and future acquisitions of properties or businesses could reduce our earnings and
slow our growth.

There  is  intense  competition  for  acquisition  opportunities  in  our  industry.  The  successful  acquisition  of  producing  properties  requires  an
assessment  of  several  factors,  including;  recoverable  reserves,  future  oil  and  natural  gas  prices  and  their  applicable  differentials,  operating  costs,  and
potential environmental and other liabilities.

The accuracy of these assessments is inherently uncertain, and we may not be able to identify attractive acquisition opportunities. In connection
with these assessments, we perform a review of the subject properties that we believe to be generally consistent with industry practices. Our review will not
reveal  all  existing  or  potential  problems  nor  will  it  permit  us  to  become  sufficiently  familiar  with  the  properties  to  assess  fully  their  deficiencies  and
capabilities. Inspections may not always be performed on every well, and environmental problems, such as groundwater contamination, are not necessarily
observable  even  when  an  inspection  is  undertaken.  Even  when  problems  are  identified,  the  seller  may  be  unwilling  or  unable  to  provide  effective
contractual protection against all or part of the problems. Even if we do identify attractive acquisition opportunities, we may not be able to complete the
acquisition or do so on commercially acceptable terms.

Competition for acquisitions may increase the cost of, or cause us to refrain from, completing acquisitions. Our ability to complete acquisitions is
dependent upon, among other things, our ability to obtain debt and equity financing and, in some cases, regulatory approvals. If these acquisitions include
geographic  regions  in  which  we  do  not  currently  operate,  as  in  the  case  of  the  pending  merger  with  QEP,  we  could  be  subject  to  unforeseen  operating
difficulties  and  difficulties  in  coordinating  geographically  dispersed  operations,  personnel  and  facilities.  In  addition,  if  we  enter  into  new  geographic
markets,  we  may  be  subject  to  additional  and  unfamiliar  legal  and  regulatory  requirements.  Compliance  with  regulatory  requirements  may  impose
substantial additional obligations on us and our management, cause us to expend additional time and resources in compliance activities and increase our
exposure to penalties or fines for non-compliance with such additional legal requirements. Further, the success of any completed acquisition will depend on
our  ability  to  integrate  effectively  the  acquired  business  into  our  existing  operations.  The  process  of  integrating  acquired  businesses  may  involve
unforeseen difficulties and may require a disproportionate amount of our managerial and financial resources. In addition, possible future acquisitions may
be larger and for purchase prices significantly higher than those paid for earlier acquisitions.

No  assurance  can  be  given  that  we  will  be  able  to  identify  additional  suitable  acquisition  opportunities,  negotiate  acceptable  terms,  obtain
financing  for  acquisitions  on  acceptable  terms  or  successfully  acquire  identified  targets.  Our  failure  to  achieve  consolidation  savings,  to  integrate  the
acquired  businesses  and  assets  into  our  existing  operations  successfully  or  to  minimize  any  unforeseen  operational  difficulties  could  have  a  material
adverse effect on our financial condition and results of operations. The inability to effectively manage the integration of acquisitions, including our pending
acquisitions, could reduce our focus on subsequent acquisitions and current operations, which, in turn, could negatively impact our earnings and growth.
Our  financial  position  and  results  of  operations  may  fluctuate  significantly  from  period  to  period,  based  on  whether  or  not  significant  acquisitions  are
completed in particular periods.

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We may incur losses as a result of title defects in the properties in which we invest.

It is our practice in acquiring oil and natural gas leases or interests not to incur the expense of retaining lawyers to examine the title to the mineral
interest. Rather, we rely upon the judgment of oil and gas lease brokers or landmen who perform the fieldwork in examining records in the appropriate
governmental  office  before  attempting  to  acquire  a  lease  in  a  specific  mineral  interest.  The  existence  of  a  material  title  deficiency  can  render  a  lease
worthless and can adversely affect our results of operations and financial condition.

Prior to the drilling of an oil or natural gas well, however, it is the normal practice in our industry for the person or company acting as the operator
of the well to obtain a preliminary title review to ensure there are no obvious defects in title to the well. Frequently, as a result of such examinations, certain
curative work must be done to correct defects in the marketability of the title, and such curative work entails expense. Our failure to cure any title defects
may  delay  or  prevent  us  from  utilizing  the  associated  mineral  interest,  which  may  adversely  impact  our  ability  in  the  future  to  increase  production  and
reserves.  Additionally,  undeveloped  acreage  has  greater  risk  of  title  defects  than  developed  acreage.  If  there  are  any  title  defects  or  defects  in  the
assignment of leasehold rights in properties in which we hold an interest, we will suffer a financial loss.

Our project areas, which are in various stages of development, may not yield oil or natural gas in commercially viable quantities.

Our project areas are in various stages of development, ranging from project areas with current drilling or production activity to project areas that
consist  of  recently  acquired  leasehold  acreage  or  that  have  limited  drilling  or  production  history.  If  future  wells  or  the  wells  in  the  process  of  being
completed do not produce sufficient revenues to return a profit or if we drill dry holes in the future, our business may be materially affected.

Our identified potential drilling locations, which are part of our anticipated future drilling plans, are susceptible to uncertainties that could materially
alter the occurrence or timing of their drilling.

At  an  assumed  price  of  approximately  $60.00  per  Bbl  WTI,  we  currently  have  approximately  10,413  gross  (6,863  net)  identified  economic
potential horizontal drilling locations in multiple horizons on our acreage. As of December 31, 2020, only 628 of our gross identified potential horizontal
drilling locations were attributed to proved reserves. These drilling locations, including those without proved undeveloped reserves, represent a significant
part  of  our  growth  strategy.  Our  ability  to  drill  and  develop  these  locations  depends  on  a  number  of  uncertainties,  including  the  availability  of  capital,
construction of infrastructure, inclement weather, regulatory changes and approvals, oil and natural gas prices, costs, drilling results and the availability of
water. Further, our identified potential drilling locations are in various stages of evaluation, ranging from locations that are ready to drill to locations that
will require substantial additional interpretation. In addition, we have identified approximately 2,708 horizontal drilling locations in intervals in which we
have drilled very few or no wells, which are necessarily more speculative and based on results from other operators whose acreage may not be consistent
with ours. We cannot predict in advance of drilling and testing whether any particular drilling location will yield oil or natural gas in sufficient quantities to
recover drilling or completion costs or to be economically viable. The use of technologies and the study of producing fields in the same area will not enable
us to know conclusively prior to drilling whether oil or natural gas will be present or, if present, whether oil or natural gas will be present in sufficient
quantities to be economically viable. Even if sufficient amounts of oil or natural gas exist, we may damage the potentially productive hydrocarbon bearing
formation  or  experience  mechanical  difficulties  while  drilling  or  completing  the  well,  possibly  resulting  in  a  reduction  in  production  from  the  well  or
abandonment of the well. If we drill additional wells that we identify as dry holes in our current and future drilling locations, our drilling success rate may
decline and materially harm our business. Through December 31, 2020, we are the operator of, have participated in, or have acquired working interest in a
total of 2,380 horizontal wells completed on our acreage, we cannot assure you that the analogies we draw from available data from these or other wells,
more  fully  explored  locations  or  producing  fields  will  be  applicable  to  our  drilling  locations.  Further,  initial  production  rates  reported  by  us  or  other
operators  in  the  Permian  Basin  may  not  be  indicative  of  future  or  long-term  production  rates.  Because  of  these  uncertainties,  we  do  not  know  if  the
potential drilling locations we have identified will ever be drilled or if we will be able to produce oil or natural gas from these or any other potential drilling
locations. As such, our actual drilling activities may materially differ from those presently identified, which could adversely affect our business.

Multi-well pad drilling may result in volatility in our operating results.

We utilize multi-well pad drilling where practical. Because wells drilled on a pad are not brought into production until all wells on the pad are
drilled and completed and the drilling rig is moved from the location, multi-well pad drilling delays the commencement of production, which may cause
volatility in our operating results.

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Our  acreage  must  be  drilled  before  lease  expiration,  generally  within  three  to  five  years,  in  order  to  hold  the  acreage  by  production.  In  a  highly
competitive  market  for  acreage,  failure  to  drill  sufficient  wells  to  hold  acreage  may  result  in  a  substantial  lease  renewal  cost  or,  if  renewal  is  not
feasible, loss of our lease and prospective drilling opportunities.

Leases on oil and natural gas properties typically have a term of three to five years, after which they expire unless, prior to expiration, production
is established within the spacing units covering the undeveloped acres. The cost to renew such leases may increase significantly, and we may not be able to
renew  such  leases  on  commercially  reasonable  terms  or  at  all.  Any  reduction  in  our  current  drilling  program,  either  through  a  reduction  in  capital
expenditures  or  the  unavailability  of  drilling  rigs,  could  result  in  the  loss  of  acreage  through  lease  expirations.  In  addition,  in  order  to  hold  our  current
leases expiring in 2021, we will need to operate at least a one-rig program. We cannot assure you that we will have the liquidity to deploy these rigs in this
time frame, or that commodity prices will warrant operating such a drilling program. Any such losses of leases could materially and adversely affect the
growth of our asset basis, cash flows and results of operations.

We have entered into commodity price derivatives for a portion of our production. Although we have hedged a portion of our estimated 2021 and 2022
production, we may still be adversely affected by continuing and prolonged declines in the price of oil and may be exposed to other risks, including
counterparty credit risk.

We use commodity price derivatives to reduce price volatility associated with certain of our oil and natural gas sales. To the extent that the prices
of oil and natural gas remain at current levels or decline further, we may not be able to economically hedge future production at the same level as our
current hedges, and our results of operations and financial condition may be negatively impacted.

At settlement, market prices for commodities may exceed the contract prices in our commodity price derivatives agreements, resulting in our need
to make significant cash payments to our counterparties. Further, by using commodity derivative instruments, we expose ourselves to credit risk if we are in
a positive position at contract settlement and the counterparty fails to perform under the terms of the derivative contract. We do not require collateral from
our counterparties.

For additional information regarding our outstanding derivative contracts as of December 31, 2020, see Note 15—Derivatives to our consolidated

financial statements included elsewhere in this report.

If production from our Permian Basin acreage decreases due to decreased developmental activities, production related difficulties or otherwise, we may
fail  to  meet  our  obligations  to  deliver  specified  quantities  of  oil  under  our  oil  purchase  contract,  which  will  result  in  deficiency  payments  to  the
counterparty and may have an adverse effect on our operations.

We  are  a  party  to  long-term  crude  oil  agreements  under  which,  subject  to  certain  terms  and  conditions,  we  are  obligated  to  deliver  specified
quantities of oil to such companies. Our maximum delivery obligation under these agreements varies for different periods and depends in some cases upon
certain conditions beyond our control. If production from our Permian Basin acreage decreases due to decreased developmental activities, as a result of the
low  commodity  price  environment,  production  related  difficulties  or  otherwise,  we  may  be  unable  to  meet  our  obligations  under  our  oil  purchase
agreements, which may result in deficiency payments to certain counterparties or a default under such agreements and may have an adverse effect on our
company.

The inability of one or more of our customers to meet their obligations may adversely affect our financial results.

In addition to credit risk related to receivables from commodity derivative contracts, our principal exposure to credit risk is through receivables
from  joint  interest  owners  on  properties  we  operate  (approximately  $56  million  at  December  31,  2020)  and  receivables  from  purchasers  of  our  oil  and
natural gas production (approximately $281 million at December 31, 2020). Joint interest receivables arise from billing entities that own partial interests in
the wells we operate. These entities participate in our wells primarily based on their ownership in leases on which we wish to drill. We are generally unable
to control which co-owners participate in our wells.

We are also subject to credit risk due to the concentration of our oil and natural gas receivables with several significant customers. For the year
ended December 31, 2020, four purchasers each accounted for more than 10% of our revenue. For each of the years ended December 31, 2019 and 2018,
three purchasers each accounted for more than 10% of our revenue. This concentration of customers may impact our overall credit risk in that these entities
may  be  similarly  affected  by  changes  in  economic  and  other  conditions.  Current  economic  circumstances  may  further  increase  these  risks.  We  do  not
require our customers to post collateral. The inability or failure of our significant customers or joint working interest owners to meet their obligations to us
or their insolvency or liquidation may materially adversely affect our financial results.

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Our method of accounting for investments in oil and natural gas properties may result in impairment of asset value.

We  account  for  our  oil  and  natural  gas  producing  activities  using  the  full  cost  method  of  accounting.  Accordingly,  all  costs  incurred  in  the
acquisition, exploration and development of proved oil and natural gas properties, including the costs of abandoned properties, dry holes, geophysical costs
and annual lease rentals are capitalized. We also capitalize direct operating costs for services performed with internally owned drilling and well servicing
equipment. All general and administrative corporate costs unrelated to drilling activities are expensed as incurred. Sales or other dispositions of oil and
natural gas properties are accounted for as adjustments to capitalized costs, with no gain or loss recorded unless the ratio of cost to proved reserves would
significantly change. Income from services provided to working interest owners of properties in which we also own an interest, to the extent they exceed
related  costs  incurred,  are  accounted  for  as  reductions  of  capitalized  costs  of  oil  and  natural  gas  properties.  Depletion  of  evaluated  oil  and  natural  gas
properties  is  computed  on  the  units  of  production  method,  whereby  capitalized  costs  plus  estimated  future  development  costs  are  amortized  over  total
proved reserves. The average depletion rate per barrel equivalent unit of production was $11.30, $13.54 and $12.62 for the years ended December 31, 2020,
2019 and 2018, respectively. Depletion for oil and natural gas properties for the years ended December 31, 2020, 2019 and 2018 was $1.2 billion, $1.4
billion and $595 million, respectively.

The net capitalized costs of proved oil and natural gas properties are subject to a full cost ceiling limitation in which the costs are not allowed to
exceed  their  related  estimated  future  net  revenues  discounted  at  10%.  To  the  extent  capitalized  costs  of  evaluated  oil  and  natural  gas  properties,  net  of
accumulated depreciation, depletion, amortization and impairment, exceed the discounted future net revenues of proved oil and natural gas reserves, the
excess capitalized costs are charged to expense. We use the unweighted arithmetic average first day of the month price for oil and natural gas for the 12-
month period preceding the calculation date in estimating discounted future net revenues.

An impairment on proved oil and natural gas properties of $6.0 billion and $790 million was recorded for the years ended December 31, 2020 and
2019,  respectively.  No  impairments  on  proved  oil  and  natural  gas  properties  were  recorded  for  the  year  ended  December  31,  2018.  See  Item  7.
“Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations—Critical  Accounting  Policies  and  Estimates—Method  of
accounting for oil and natural gas properties” for a more detailed description of our method of accounting.

Our  estimated  reserves  and  EURs  are  based  on  many  assumptions  that  may  turn  out  to  be  inaccurate.  Any  material  inaccuracies  in  these  reserve
estimates or underlying assumptions will materially affect the quantities and present value of our reserves.

Oil and natural gas reserve engineering is not an exact science and requires subjective estimates of underground accumulations of oil and natural
gas and assumptions concerning future oil and natural gas prices, production levels, ultimate recoveries and operating and development costs. As a result,
estimated quantities of proved reserves, projections of future production rates and the timing of development expenditures may be incorrect. The EURs for
our horizontal wells are based on management’s internal estimates. Over time, we may make material changes to reserve estimates taking into account the
results of actual drilling, testing and production. Also, certain assumptions regarding future oil and natural gas prices, production levels and operating and
development costs may prove incorrect. Any significant variance from these assumptions to actual figures could greatly affect our estimates of reserves, the
economically recoverable quantities of oil and natural gas attributable to any particular group of properties, the classifications of reserves based on risk of
recovery and estimates of future net cash flows. A substantial portion of our reserve estimates are made without the benefit of a lengthy production history,
which  are  less  reliable  than  estimates  based  on  a  lengthy  production  history.  Numerous  changes  over  time  to  the  assumptions  on  which  our  reserve
estimates  are  based,  as  described  above,  often  result  in  the  actual  quantities  of  oil  and  natural  gas  that  we  ultimately  recover  being  different  from  our
reserve estimates. Reserve estimates do not include any value for probable or possible reserves that may exist, nor do they include any value for unproved
undeveloped acreage. The reserve estimates represent our net revenue interest in our properties.

The timing of both our production and our incurrence of costs in connection with the development and production of oil and natural gas properties

will affect the timing of actual future net cash flows from proved reserves.

The standardized measure of our estimated proved reserves and our PV-10 are not necessarily the same as the current market value of our estimated
proved oil reserves.

The present value of future net cash flow from our proved reserves, or standardized measure, and our related PV-10 calculation, may not represent
the current market value of our estimated proved oil reserves. In accordance with SEC requirements, we base the estimated discounted future net cash flow
from  our  estimated  proved  reserves  on  the  12-month  average  oil  index  prices,  calculated  as  the  unweighted  arithmetic  average  for  the  first-day-of-the-
month price for each month and costs in effect as of the date of the estimate, holding the prices and costs constant throughout the life of the properties.

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Actual future prices and costs may differ materially from those used in the net present value estimate, and future net present value estimates using
then  current  prices  and  costs  may  be  significantly  less  than  current  estimates.  In  addition,  the  10%  discount  factor  we  use  when  calculating  discounted
future net cash flow for reporting requirements in compliance with the Financial Accounting Standard Board Codification 932, “Extractive Activities—Oil
and Gas,” may not be the most appropriate discount factor based on interest rates in effect from time to time and risks associated with us or the oil and
natural gas industry in general.

The  development  of  our  proved  undeveloped  reserves  may  take  longer  and  may  require  higher  levels  of  capital  expenditures  than  we  currently
anticipate.

Approximately 38% of our total estimated proved reserves as of December 31, 2020, were proved undeveloped reserves and may not be ultimately
developed or produced. Recovery of proved undeveloped reserves requires significant capital expenditures and successful drilling operations. The reserve
data  included  in  the  reserve  reports  of  our  independent  petroleum  engineers  assume  that  substantial  capital  expenditures  are  required  to  develop  such
reserves. We cannot be certain that the estimated costs of the development of these reserves are accurate, that development will occur as scheduled or that
the results of such development will be as estimated. Delays in the development of our reserves, increases in costs to drill and develop such reserves, or
further decreases in commodity prices will reduce the future net revenues of our estimated proved undeveloped reserves and may result in some projects
becoming uneconomical. In addition, delays in the development of reserves could force us to reclassify certain of our proved reserves as unproved reserves.

Our  producing  properties  are  located  in  the  Permian  Basin  of  West  Texas,  making  us  vulnerable  to  risks  associated  with  operating  in  a  single
geographic area. In addition, we have a large amount of proved reserves attributable to a small number of producing horizons within this area.

Our producing properties are currently geographically concentrated in the Permian Basin of West Texas. As a result of this concentration, we may
be disproportionately exposed to the impact of regional supply and demand factors, delays or interruptions of production from wells in this area caused by
governmental regulation, processing or transportation capacity constraints, availability of equipment, facilities, personnel or services market limitations or
interruption of the processing or transportation of crude oil, natural gas or natural gas liquids and extreme weather conditions, such as the recent severe
winter storms in the Permian Basin, and their adverse impact on production volumes, availability of electrical power, road accessibility and transportation
facilities.  In  addition,  the  effect  of  fluctuations  on  supply  and  demand  may  become  more  pronounced  within  specific  geographic  oil  and  natural  gas
producing areas such as the Permian Basin, which may cause these conditions to occur with greater frequency or magnify the effects of these conditions.
Due to the concentrated nature of our portfolio of properties, a number of our properties could experience any of the same conditions at the same time,
resulting  in  a  relatively  greater  impact  on  our  results  of  operations  than  they  might  have  on  other  companies  that  have  a  more  diversified  portfolio  of
properties. Such delays or interruptions could have a material adverse effect on our financial condition and results of operations.

In addition to the geographic concentration of our producing properties described above, as of December 31, 2020, most of our proved reserves
are  concentrated  in  the  Wolfberry  play  in  the  Midland  Basin.  This  concentration  of  assets  within  a  small  number  of  producing  horizons  exposes  us  to
additional risks, such as changes in field-wide rules and regulations that could cause us to permanently or temporarily shut-in all of our wells within a field.

We depend upon several significant purchasers for the sale of most of our oil and natural gas production. The loss of one or more of these purchasers
could, among other factors, limit our access to suitable markets for the oil and natural gas we produce.

The availability of a ready market for any oil and/or natural gas we produce depends on numerous factors beyond the control of our management,
including but not limited to the extent of domestic production and imports of oil, the proximity and capacity of natural gas pipelines, the availability of
skilled labor, materials and equipment, the effect of state and federal regulation of oil and natural gas production and federal regulation of natural gas sold
in interstate commerce. In addition, we depend upon several significant purchasers for the sale of most of our oil and natural gas production. For the year
ended December 31, 2020, four purchasers each accounted for more than 10% of our revenue. For each of the years ended December 31, 2019 and 2018,
three purchasers each accounted for more than 10% of our revenue. We cannot assure you that we will continue to have ready access to suitable markets for
our future oil and natural gas production. The loss of one or more of these customers, and our inability to sell our production to other customers on terms
we consider acceptable, could materially and adversely affect our business, financial condition, results of operations and cash flow.

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The unavailability, high cost or shortages of rigs, equipment, raw materials, supplies, oilfield services or personnel may restrict our operations.

The oil and natural gas industry is cyclical, which can result in shortages of drilling rigs, equipment, raw materials (particularly sand and other
proppants), supplies and personnel. When shortages occur, the costs and delivery times of rigs, equipment and supplies increase and demand for, and wage
rates of, qualified drilling rig crews also rise with increases in demand. We cannot predict whether these conditions will exist in the future and, if so, what
their timing and duration will be. In accordance with customary industry practice, we rely on independent third party service providers to provide most of
the services necessary to drill new wells. If we are unable to secure a sufficient number of drilling rigs at reasonable costs, our financial condition and
results  of  operations  could  suffer,  and  we  may  not  be  able  to  drill  all  of  our  acreage  before  our  leases  expire.  In  addition,  we  do  not  have  long-term
contracts  securing  the  use  of  our  existing  rigs,  and  the  operator  of  those  rigs  may  choose  to  cease  providing  services  to  us.  Shortages  of  drilling  rigs,
equipment,  raw  materials  (particularly  sand  and  other  proppants),  supplies,  personnel,  trucking  services,  tubulars,  fracking  and  completion  services  and
production equipment could delay or restrict our exploration and development operations, which in turn could impair our financial condition and results of
operations.

Our operations are substantially dependent on the availability of water. Restrictions on our ability to obtain water may have an adverse effect on our
financial condition, results of operations and cash flows.

Water  is  an  essential  component  of  deep  shale  oil  and  natural  gas  production  during  both  the  drilling  and  hydraulic  fracturing  processes.
Historically, we have been able to purchase water from local land owners for use in our operations. Over the past several years, Texas has experienced
extreme drought conditions. As a result of this severe drought, some local water districts have begun restricting the use of water subject to their jurisdiction
for  hydraulic  fracturing  to  protect  local  water  supply.  If  we  are  unable  to  obtain  water  to  use  in  our  operations  from  local  sources,  or  we  are  unable  to
effectively utilize flowback water, we may be unable to economically drill for or produce oil and natural gas, which could have an adverse effect on our
financial condition, results of operations and cash flows.

We may have difficulty managing growth in our business, which could adversely affect our financial condition and results of operations.

Our  business  operations  have  grown  substantially  since  our  initial  public  offering  in  October  2012  and  we  expect  our  business  operations  to
continue to grow in the future. As we expand our activities and increase the number of projects we are evaluating or in which we participate, there will be
additional demands on our financial, technical, operational and management resources. The failure to continue to upgrade our technical, administrative,
operating  and  financial  control  systems  or  the  occurrences  of  unexpected  expansion  difficulties,  including  the  failure  to  recruit  and  retain  experienced
managers, geologists, engineers and other professionals in the oil and natural gas industry, could have a material adverse effect on our business, financial
condition and results of operations and our ability to timely execute our business plan.

We have incurred losses from operations during certain periods since our inception and may do so in the future.

Our development of and participation in an increasingly larger number of drilling locations has required and will continue to require substantial
capital expenditures. The uncertainty and risks described in this report may impede our ability to economically find, develop and acquire oil and natural gas
reserves. As a result, we may not be able to achieve or sustain profitability or positive cash flows from our operating activities in the future.

Part  of  our  strategy  involves  drilling  in  existing  or  emerging  shale  plays  using  the  latest  available  horizontal  drilling  and  completion  techniques;
therefore,  the  results  of  our  planned  exploratory  drilling  in  these  plays  are  subject  to  risks  associated  with  drilling  and  completion  techniques  and
drilling results may not meet our expectations for reserves or production.

Our operations involve utilizing the latest drilling and completion techniques as developed by us and our service providers. Risks that we face
while  drilling  include,  but  are  not  limited  to,  landing  our  well  bore  in  the  desired  drilling  zone,  staying  in  the  desired  drilling  zone  while  drilling
horizontally  through  the  formation,  running  our  casing  the  entire  length  of  the  well  bore  and  being  able  to  run  tools  and  other  equipment  consistently
through the horizontal well bore. Risks that we face while completing our wells include, but are not limited to, being able to fracture stimulate the planned
number of stages, being able to run tools the entire length of the well bore during completion operations and successfully cleaning out the well bore after
completion of the final fracture stimulation stage. In addition, to the extent we engage in horizontal drilling, those activities may adversely affect our ability
to successfully drill in one or more of our identified vertical drilling locations. Furthermore, certain of the new techniques we are adopting, such as infill
drilling and multi-well pad drilling, may cause irregularities or interruptions in production due to, in the case of infill drilling, offset wells being shut in
and, in the case of

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multi-well pad drilling, the time required to drill and complete multiple wells before any such wells begin producing. The results of our drilling in new or
emerging formations are more uncertain initially than drilling results in areas that are more developed and have a longer history of established production.
Newer or emerging formations and areas often have limited or no production history and consequently we are less able to predict future drilling results in
these areas.

Ultimately,  the  success  of  these  drilling  and  completion  techniques  can  only  be  evaluated  over  time  as  more  wells  are  drilled  and  production
profiles are established over a sufficiently long time period. If our drilling results are less than anticipated or we are unable to execute our drilling program
because of capital constraints, lease expirations, access to gathering systems, and/or declines in natural gas and oil prices, the return on our investment in
these areas may not be as attractive as we anticipate. Further, as a result of any of these developments we could incur material write-downs of our oil and
natural gas properties and the value of our undeveloped acreage could decline in the future.

Conservation measures and technological advances could reduce demand for oil and natural gas.

Fuel  conservation  measures,  alternative  fuel  requirements,  increasing  consumer  demand  for  alternatives  to  oil  and  natural  gas,  technological
advances  in  fuel  economy  and  energy  generation  devices  could  reduce  demand  for  oil  and  natural  gas.  The  impact  of  the  changing  demand  for  oil  and
natural gas services and products may have a material adverse effect on our business, financial condition, results of operations and cash flows.

The marketability of our production is dependent upon transportation and other facilities, certain of which we do not control. If these facilities are
unavailable, our operations could be interrupted and our revenues reduced.

The marketability of our oil and natural gas production depends in part upon the availability, proximity and capacity of transportation facilities
owned by third parties. Our oil production is transported from the wellhead to our tank batteries by our gathering system, which interconnects with third
party pipelines. Our natural gas production is generally transported by our gathering lines from the wellhead to an interconnection point with the purchaser.
We do not control third party transportation facilities and our access to them may be limited or denied. Insufficient production from our wells to support the
construction  of  pipeline  facilities  by  our  purchasers  or  a  significant  disruption  in  the  availability  of  our  or  third  party  transportation  facilities  or  other
production facilities could adversely impact our ability to deliver to market or produce our oil and natural gas and thereby cause a significant interruption in
our operations. For example, on certain occasions we have experienced high line pressure at our tank batteries with occasional flaring due to the inability of
the gas gathering systems in the areas in which we operate to support the increased production of natural gas in the Permian Basin. If, in the future, we are
unable, for any sustained period, to implement acceptable delivery or transportation arrangements or encounter production related difficulties, we may be
required  to  shut  in  or  curtail  production.  In  addition,  the  amount  of  oil  and  natural  gas  that  can  be  produced  and  sold  may  be  subject  to  curtailment  in
certain other circumstances outside of our control, such as pipeline interruptions due to maintenance, excessive pressure, ability of downstream processing
facilities  to  accept  unprocessed  gas,  physical  damage  to  the  gathering  or  transportation  system  or  lack  of  contracted  capacity  on  such  systems.  The
curtailments arising from these and similar circumstances may last from a few days to several months, and in many cases, we are provided with limited, if
any,  notice  as  to  when  these  circumstances  will  arise  and  their  duration.  Any  such  shut  in  or  curtailment,  or  an  inability  to  obtain  favorable  terms  for
delivery of the oil and natural gas produced from our fields, would adversely affect our financial condition and results of operations.

Our operations are subject to various governmental laws and regulations which require compliance that can be burdensome and expensive.

Our oil and natural gas operations are subject to various federal, state and local governmental regulations that may be changed from time to time
in  response  to  economic  and  political  conditions.  Matters  subject  to  regulation  include  discharge  permits  for  drilling  operations,  drilling  bonds,  reports
concerning operations, the spacing of wells, unitization and pooling of properties and taxation. From time to time, regulatory agencies have imposed price
controls and limitations on production by restricting the rate of flow of oil and natural gas wells below actual production capacity to conserve supplies of
oil and natural gas. In addition, the production, handling, storage, transportation, remediation, emission and disposal of oil and natural gas, by-products
thereof and other substances and materials produced or used in connection with oil and natural gas operations are subject to regulation under federal, state
and local laws and regulations primarily relating to protection of human health and the environment. Failure to comply with these laws and regulations may
result in the assessment of sanctions, including administrative, civil or criminal penalties, permit revocations, requirements for additional pollution controls
and  injunctions  limiting  or  prohibiting  some  or  all  of  our  operations.  Further,  these  laws  and  regulations  imposed  strict  requirements  for  water  and  air
pollution control and solid waste management. Significant expenditures may be required to comply with governmental laws and regulations applicable to
us. In addition, federal and state legislation and regulatory initiatives relating to hydraulic fracturing could result in increased costs and additional operating
restrictions or delays. Even if federal regulatory burdens temporarily ease, the historic trend of more expansive and stricter environmental legislation and

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regulations may continue in the long-term, and at the state and local levels. See Item 1. “Business—Regulation” for a detailed description of certain laws
and regulations that affect us.

Restrictions on drilling activities intended to protect certain species of wildlife may adversely affect our ability to conduct drilling activities in some of
the areas where we operate.

Oil and natural gas operations in our operating areas can be adversely affected by seasonal or permanent restrictions on drilling activities designed
to protect various wildlife. Seasonal restrictions may limit our ability to operate in protected areas and can intensify competition for drilling rigs, oilfield
equipment, services, supplies and qualified personnel, which may lead to periodic shortages when drilling is allowed. These constraints and the resulting
shortages  or  high  costs  could  delay  our  operations  and  materially  increase  our  operating  and  capital  costs.  Permanent  restrictions  imposed  to  protect
threatened or endangered species could prohibit drilling in certain areas or require the implementation of expensive mitigation measures. The designation
of  previously  unprotected  species  in  areas  where  we  operate  as  threatened  or  endangered  could  cause  us  to  incur  increased  costs  arising  from  species
protection measures or could result in limitations on our exploration and production activities that could have an adverse impact on our ability to develop
and produce our reserves.

Derivatives reform legislation and related regulations could have an adverse effect on our ability to hedge risks associated with our business.

The July 2010 Dodd-Frank Wall Street Reform and Consumer Protection Act, which we refer to as Dodd-Frank Act, provides for federal oversight
of  the  over-the-counter  derivatives  market  and  entities  that  participate  in  that  market  and  mandates  that  the  Commodity  Futures  Trading  Commission,
which we refer to as the CFTC, the SEC, and federal regulators of financial institutions, which we refer to as the Prudential Regulators, adopt rules or
regulations  implementing  the  Dodd-Frank  Act  and  providing  definitions  of  terms  used  in  the  Dodd-Frank  Act.  The  Dodd-Frank  Act  establishes  margin
requirements and requires clearing and trade execution practices for certain market participants and may result in certain market participants needing to
curtail or cease their derivatives activities.

Although some of the rules necessary to implement the Dodd-Frank Act remain to be adopted, the CFTC, the SEC and the Prudential Regulators

have issued many rules to implement the Dodd-Frank Act, including a rule, which we refer to as the Mandatory Clearing Rule, requiring clearing of
hedges, or swaps, that are subject to it (currently, only certain interest rate and credit default swaps, a rule, which we refer to as the End User Exception,
establishing an “end user” exception to the Mandatory Clearing Rule, a rule, which we refer to as the Margin Rule, setting forth collateral requirements in
connection with swaps that are not cleared and also an exception to the Margin Rule for end users that are not financial end users, which exception we refer
to as the Non-Financial End User Exception, and a rule imposing position limits, which we refer to as the Position Limit Rule, and also an exception to the
Position Limit Rule for swaps that constitute a “bona fide hedging transaction or position” within the definition of such term under the Position Limit Rule,
subject to the party claiming the exemption complying with the applicable filing, recordkeeping and reporting requirements of the Position Limit Rule,
which we refer to as the Bona Fide Hedging Exception.

We qualify for the End User Exception to the Mandatory Clearing Rule, we qualify for the Non-Financial End User Exception and will not be
required to post margin in connection with uncleared swaps under the Margin Rule, and each of our existing and anticipated hedging positions constitutes a
“bona fide hedging transaction or position” under the Position Limit Rule and we intend to undertake the filing, recordkeeping and reporting necessary to
utilize the Bona Fide Hedging Exception under the Position Limit Rule, so we do not expect to be directly affected by any of such rules. However, most if
not all of our hedge counterparties will be subject to mandatory clearing in connection with their hedging activities with parties who do not qualify for the
End  User  Exception  and  will  be  required  to  post  margin  in  connection  with  their  hedging  activities  with  other  swap  dealers,  major  swap  participants,
financial end users and other persons that do not qualify for the Non-Financial End User Exception. In addition, the European Union and other non-U.S.
jurisdictions have enacted laws and regulations (including laws and regulations giving the European Union financial authorities the power to write-down
amounts we may be owed on hedging agreements with counterparties subject to such laws and regulations and/or require that we accept equity interests in
such  counterparties  in  lieu  of  cash  in  satisfaction  of  such  amounts),  which  we  refer  to  collectively  as  Foreign  Regulations,  which  may  apply  to  our
transactions  with  counterparties  subject  to  such  Foreign  Regulations,  which  we  refer  to  as  Foreign  Counterparties,  and  the  U.S.  adopted  law  and  rules,
which  we  call  the  U.S.  Resolution  Stay  Rules,  clarifying  similar  rights  of  U.S.  banking  authorities  with  respect  to  banking  institutions  subject  to  their
regulation. The Dodd-Frank Act, the rules which have been adopted and not vacated, the Limit Rule and the U.S. Resolution Stay Rules could significantly
increase the cost of our derivative contracts, materially alter the terms of our derivative contracts, reduce the availability of derivatives to us that we have
historically used to protect against risks that we encounter in our business, reduce our ability to monetize or restructure our existing derivative contracts and
increase our exposure to less creditworthy counterparties. The Foreign Regulations could have similar effects. If we reduce our use of derivatives as a result
of the Dodd-Frank Act and regulation, the U.S. Resolution Stay Rules and Foreign Regulations, our results of operations may

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become more volatile and our cash flows may be less predictable, which could adversely affect our ability to plan for and fund capital expenditures. Finally,
the Dodd-Frank Act was intended, in part, to reduce the volatility of oil and natural gas prices, which some legislators attributed to speculative trading in
derivatives and commodity contracts related to oil and natural gas. Our revenues could therefore be adversely affected if a consequence of the Dodd-Frank
Act and regulations is to lower commodity prices. Any of these consequences could have a material adverse effect on us, our financial condition and our
results of operations.

Recently enacted U.S. tax legislation as well as future U.S. tax legislation may adversely affect our business, results of operations, financial condition
and cash flow.

From time to time, legislation has been proposed that, if enacted into law, would make significant changes to U.S. federal and state income tax
laws  affecting  the  oil  and  natural  gas  industry,  including  (i)  eliminating  the  immediate  deduction  for  intangible  drilling  and  development  costs,  (ii)  the
repeal of the percentage depletion allowance for oil and natural gas properties; and (iii) an extension of the amortization period for certain geological and
geophysical expenditures. No accurate prediction can be made as to whether any such legislative changes will be proposed or enacted in the future or, if
enacted, what the specific provisions or the effective date of any such legislation would be. These proposed changes in the U.S. tax law, if adopted, or other
similar changes that would impose additional tax on our activities or reduce or eliminate deductions currently available with respect to natural gas and oil
exploration, development or similar activities, could adversely affect our business, results of operations, financial condition and cash flow.

If third party pipelines or other facilities interconnected to Rattler LLC’s midstream systems become partially or fully unavailable, or if the volumes we
gather or treat do not meet the quality requirements of such pipelines or facilities, our midstream operations could be adversely affected.

Our subsidiary Rattler LLC’s midstream systems are connected to other pipelines or facilities, the majority of which are owned by third parties.
The  continuing  operation  of  such  third  party  pipelines  or  facilities  is  not  within  our  control.  If  any  of  these  pipelines  or  facilities  becomes  unable  to
transport,  treat  or  process  natural  gas  or  crude  oil,  or  if  the  volumes  we  gather  or  transport  do  not  meet  the quality  requirements  of  such  pipelines  or
facilities, our midstream operations could be adversely affected.

We operate in areas of high industry activity, which may affect our ability to hire, train or retain qualified personnel needed to manage and operate our
assets.

Our operations and drilling activity are concentrated in the Permian Basin in West Texas, an area in which industry activity has increased rapidly.
As  a  result,  demand  for  qualified  personnel  in  this  area,  and  the  cost  to  attract  and  retain  such  personnel,  has  increased  over  the  past  few  years  due  to
competition and may increase substantially in the future. Moreover, our competitors may be able to offer better compensation packages to attract and retain
qualified personnel than we are able to offer.

Any delay or inability to secure the personnel necessary for us to continue or complete our current and planned development activities could lead
to a reduction in production volumes.  Any such negative effect on production volumes, or significant increases in costs, could have a material adverse
effect on our business, financial condition and results of operations.

We rely on a few key employees whose absence or loss could adversely affect our business.

Many  key  responsibilities  within  our  business  have  been  assigned  to  a  small  number  of  employees.  The  loss  of  their  services  could  adversely
affect our business. In particular, the loss of the services of one or more members of our executive team, including our Chief Executive Officer, Travis D.
Stice, could disrupt our operations. We do not have employment agreements with our executives and may not be able to assure their retention. Further, we
do not maintain “key person” life insurance policies on any of our employees. As a result, we are not insured against any losses resulting from the death of
our key employees.

Drilling  for  and  producing  oil  and  natural  gas  are  high-risk  activities  with  many  uncertainties  that  may  result  in  a  total  loss  of  investment  and
adversely affect our business, financial condition or results of operations.

Our drilling activities are subject to many risks. For example, we cannot assure you that new wells drilled by us will be productive or that we will
recover all or any portion of our investment in such wells. Drilling for oil and natural gas often involves unprofitable efforts, not only from dry wells but
also from wells that are productive but do not produce sufficient oil or natural gas to return a profit at then realized prices after deducting drilling, operating
and other costs. The seismic data and

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other  technologies  we  use  do  not  allow  us  to  know  conclusively  prior  to  drilling  a  well  that  oil  or  natural  gas  is  present  or  that  it  can  be  produced
economically. The costs of exploration, exploitation and development activities are subject to numerous uncertainties beyond our control, and increases in
those costs can adversely affect the economics of a project. Further, our drilling and producing operations may be curtailed, delayed, canceled or otherwise
negatively impacted as a result of other factors, including; unusual or unexpected geological formations; loss of drilling fluid circulation; title problems;
facility or equipment malfunctions; unexpected operational events; shortages or delivery delays of equipment and services; compliance with environmental
and other governmental requirements; and adverse weather conditions.

Any of these risks can cause substantial losses, including personal injury or loss of life, damage to or destruction of property, natural resources and

equipment, pollution, environmental contamination or loss of wells and other regulatory penalties.

Our development and exploratory drilling efforts and our well operations may not be profitable or achieve our targeted returns.

Historically,  we  have  acquired  significant  amounts  of  unproved  property  in  order  to  further  our  development  efforts  and  expect  to  continue  to
undertake acquisitions in the future. Development and exploratory drilling and production activities are subject to many risks, including the risk that no
commercially productive reservoirs will be discovered. We acquire unproved properties and lease undeveloped acreage that we believe will enhance our
growth potential and increase our earnings over time. However, we cannot assure you that all prospects will be economically viable or that we will not
abandon our investments. Additionally, we cannot assure you that unproved property acquired by us or undeveloped acreage leased by us will be profitably
developed, that new wells drilled by us in prospects that we pursue will be productive or that we will recover all or any portion of our investment in such
unproved property or wells.

Operating hazards and uninsured risks may result in substantial losses and could prevent us from realizing profits.

Our operations are subject to all of the hazards and operating risks associated with drilling for and production of oil and natural gas, including the
risk  of  fire,  explosions,  blowouts,  surface  cratering,  uncontrollable  flows  of  natural  gas,  oil  and  formation  water,  pipe  or  pipeline  failures,  abnormally
pressured formations, casing collapses and environmental hazards such as oil spills, gas leaks and ruptures or discharges of toxic gases. In addition, our
operations  are  subject  to  risks  associated  with  hydraulic  fracturing,  including  any  mishandling,  surface  spillage  or  potential  underground  migration  of
fracturing fluids, including chemical additives. The occurrence of any of these events could result in substantial losses to us due to injury or loss of life,
severe  damage  to  or  destruction  of  property,  natural  resources  and  equipment,  pollution  or  other  environmental  damage,  clean-up  responsibilities,
regulatory investigations and penalties, suspension of operations and repairs required to resume operations.

We  endeavor  to  contractually  allocate  potential  liabilities  and  risks  between  us  and  the  parties  that  provide  us  with  services  and  goods,  which
include  pressure  pumping  and  hydraulic  fracturing,  drilling  and  cementing  services  and  tubular  goods  for  surface,  intermediate  and  production  casing.
Under our agreements with our vendors, to the extent responsibility for environmental liability is allocated between the parties, (i) our vendors generally
assume all responsibility for control and removal of pollution or contamination which originates above the surface of the land and is directly associated
with  such  vendors’  equipment  while  in  their  control  and  (ii)  we  generally  assume  the  responsibility  for  control  and  removal  of  all  other  pollution  or
contamination  which  may  occur  during  our  operations,  including  pre-existing  pollution  and  pollution  which  may  result  from  fire,  blowout,  cratering,
seepage or any other uncontrolled flow of oil, gas or other substances, as well as the use or disposition of all drilling fluids. In addition, we generally agree
to indemnify our vendors for loss or destruction of vendor-owned property that occurs in the well hole (except for damage that occurs when a vendor is
performing  work  on  a  footage,  rather  than  day  work,  basis)  or  as  a  result  of  the  use  of  equipment,  certain  corrosive  fluids,  additives,  chemicals  or
proppants.  However,  despite  this  general  allocation  of  risk,  we  might  not  succeed  in  enforcing  such  contractual  allocation,  might  incur  an  unforeseen
liability  falling  outside  the  scope  of  such  allocation  or  may  be  required  to  enter  into  contractual  arrangements  with  terms  that  vary  from  the  above
allocations  of  risk.  As  a  result,  we  may  incur  substantial  losses  which  could  materially  and  adversely  affect  our  financial  condition  and  results  of
operations.

In accordance with what we believe to be customary industry practice, we historically have maintained insurance against some, but not all, of our
business risks. Our insurance may not be adequate to cover any losses or liabilities we may suffer. Also, insurance may no longer be available to us or, if it
is,  its  availability  may  be  at  premium  levels  that  do  not  justify  its  purchase.  The  occurrence  of  a  significant  uninsured  claim,  a  claim  in  excess  of  the
insurance coverage limits maintained by us or a claim at a time when we are not able to obtain liability insurance could have a material adverse effect on
our ability to conduct normal business operations and on our financial condition, results of operations or cash flow. In addition, we may not be able to
secure additional insurance or bonding that might be required by new governmental regulations. This may cause us to restrict our operations, which might
severely impact our financial position. We may also be liable for

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environmental damage caused by previous owners of properties purchased by us, which liabilities may not be covered by insurance.

Since hydraulic fracturing activities are part of our operations, we maintain insurance to protect against claims made for bodily injury and property
damage,  and  that  insurance  includes  coverage  for  clean-up  costs  stemming  from  a  sudden  and  accidental  pollution  event.  However,  we  may  not  have
coverage if we are unaware of the pollution event and unable to report the “occurrence” to our insurance company within the time frame required under our
insurance policy. We have limited coverage for gradual, long-term pollution events. In addition, these policies do not provide coverage for all liabilities,
and  we  cannot  assure  you  that  the  insurance  coverage  will  be  adequate  to  cover  claims  that  may  arise,  or  that  we  will  be  able  to  maintain  adequate
insurance at rates we consider reasonable. A loss not fully covered by insurance could have a material adverse effect on our financial position, results of
operations and cash flows.

Our  use  of  2-D  and  3-D  seismic  data  is  subject  to  interpretation  and  may  not  accurately  identify  the  presence  of  oil  and  natural  gas,  which  could
adversely affect the results of our drilling operations.

Even  when  properly  used  and  interpreted,  2-D  and  3-D  seismic  data  and  visualization  techniques  are  only  tools  used  to  assist  geoscientists  in
identifying subsurface structures and hydrocarbon indicators and do not enable the interpreter to know whether hydrocarbons are, in fact, present in those
structures. In addition, the use of 3-D seismic and other advanced technologies requires greater predrilling expenditures than traditional drilling strategies,
and we could incur losses as a result of such expenditures. As a result, our drilling activities may not be successful or economical.

We may not be able to keep pace with technological developments in our industry.

The  oil  and  natural  gas  industry  is  characterized  by  rapid  and  significant  technological  advancements  and  introductions  of  new  products  and
services  using  new  technologies.  As  others  use  or  develop  new  technologies,  we  may  be  placed  at  a  competitive  disadvantage  or  may  be  forced  by
competitive pressures to implement those new technologies at substantial costs. In addition, other oil and natural gas companies may have greater financial,
technical and personnel resources that allow them to enjoy technological advantages and that may in the future allow them to implement new technologies
before we can. We may not be able to respond to these competitive pressures or implement new technologies on a timely basis or at an acceptable cost. If
one or more of the technologies we use now or in the future were to become obsolete, our business, financial condition or results of operations could be
materially and adversely affected.

We are subject to certain requirements of Section 404 of the Sarbanes-Oxley Act. If we fail to comply with the requirements of Section 404 or if we or
our auditors identify and report material weaknesses in internal control over financial reporting, our investors may lose confidence in our reported
information and our stock price may be negatively affected.

We are required to comply with certain provisions of Section 404 of the Sarbanes-Oxley Act of 2002, or Sarbanes-Oxley Act. Section 404 requires
that we document and test our internal control over financial reporting and issue management’s assessment of our internal control over financial reporting.
This  section  also  requires  that  our  independent  registered  public  accounting  firm  opine  on  those  internal  controls.  If  we  fail  to  comply  with  the
requirements of Section 404 of the Sarbanes-Oxley Act, or if we or our auditors identify and report material weaknesses in internal control over financial
reporting, the accuracy and timeliness of the filing of our annual and quarterly reports may be materially adversely affected and could cause investors to
lose confidence in our reported financial information, which could have a negative effect on the trading price of our common stock. In addition, a material
weakness in the effectiveness of our internal control over financial reporting could result in an increased chance of fraud and the loss of customers, reduce
our ability to obtain financing and require additional expenditures to comply with these requirements, each of which could have a material adverse effect on
our business, results of operations and financial condition.

Increased costs of capital could adversely affect our business.

Our business could be harmed by factors such as the availability, terms and cost of capital, increases in interest rates or a reduction in our credit
rating. Changes in any one or more of these factors could cause our cost of doing business to increase, limit our access to capital, limit our ability to pursue
acquisition opportunities, reduce our cash flows available for drilling and place us at a competitive disadvantage. Continuing disruptions and volatility in
the global financial markets may lead to an increase in interest rates or a contraction in credit availability impacting our ability to finance our activities. We
require  continued  access  to  capital.  A  significant  reduction  in  the  availability  of  credit  could  materially  and  adversely  affect  our  ability  to  achieve  our
planned growth and cash flows.

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The results of the 2020 U.S. presidential and congressional elections may create regulatory uncertainty for the oil and natural gas industry. Changes in
environmental laws could increase our operating costs and adversely impact our business, financial condition and cash flows.

The results of the 2020 U.S. presidential election, as well as a closely divided Congress, may create regulatory uncertainty in the oil and natural
gas industry. During his first weeks in office, President Biden has issued several executive orders promoting various programs and initiatives designed to,
among other things, curtail climate change, control the release of methane from new and existing oil and natural gas operations, and pause new oil and
natural gas leasing on public lands. It remains unclear what additional actions President Biden will take and what support he will have for any potential
legislative  changes  from  Congress.  Further,  it  is  uncertain  to  what  extent  any  new  environmental  laws  or  regulations,  or  any  repeal  of  existing
environmental laws or regulations, may affect our business or operations. However, such actions could significantly increase our operating costs or impair
our ability to explore and develop other projects, which could adversely impact our business, financial condition and cash flows.

Our operations depend heavily on electrical power, internet and telecommunication infrastructure and information and computer systems. If any of
these systems are compromised or unavailable, our business could be adversely affected.

We are heavily dependent on electrical power, internet and telecommunications infrastructure and our information systems and computer-based
programs, including our well operations information, seismic data, electronic data processing and accounting data. If any of such infrastructure, systems or
programs  were  to  fail  or  become  unavailable  or  compromised,  or  create  erroneous  information  in  our  hardware  or  software  network  infrastructure,  our
ability to safely and effectively operate our business will be limited and any such consequence could have a material adverse effect on our business.

A terrorist attack or armed conflict could harm our business.

Terrorist activities, anti-terrorist efforts and other armed conflicts involving the United States or other countries may adversely affect the United
States  and  global  economies  and  could  prevent  us  from  meeting  our  financial  and  other  obligations.  If  any  of  these  events  occur,  the  resulting  political
instability  and  societal  disruption  could  reduce  overall  demand  for  oil  and  natural  gas  causing  a  reduction  in  our  revenues.  Oil  and  natural  gas  related
facilities could be direct targets of terrorist attacks, and our operations could be adversely impacted if infrastructure integral to our customers’ operations is
destroyed or damaged. Costs for insurance and other security may increase as a result of these threats, and some insurance coverage may become more
difficult to obtain, if available at all.

We  are  subject  to  cyber  security  risks.  A  cyber  incident  could  occur  and  result  in  information  theft,  data  corruption,  operational  disruption  and/or
financial loss.

The  oil  and  natural  gas  industry  has  become  increasingly  dependent  on  digital  technologies  to  conduct  certain  exploration,  development,
production,  and  processing  activities.  For  example,  the  oil  and  natural  gas  industry  depends  on  digital  technologies  to  interpret  seismic  data,  manage
drilling  rigs,  production  equipment  and  gathering  systems,  conduct  reservoir  modeling  and  reserves  estimation,  and  process  and  record  financial  and
operating  data.  At  the  same  time,  cyber  incidents,  including  deliberate  attacks  or  unintentional  events,  have  increased.  The  U.S.  government  has  issued
public warnings that indicate that energy assets might be specific targets of cyber security threats. Our technologies, systems, networks, and those of our
vendors, suppliers and other business partners, may become the target of cyberattacks or information security breaches that could result in the unauthorized
release, gathering, monitoring, misuse, loss or destruction of proprietary and other information, or other disruption of our business operations. In addition,
certain cyber incidents, such as surveillance, may remain undetected for an extended period. Our systems for protecting against cyber security risks may
not be sufficient. As cyber incidents continue to evolve, we may be required to expend additional resources to continue to modify or enhance our protective
measures  or  to  investigate  and  remediate  any  vulnerability  to  cyber  incidents.  We  maintain  specialized  insurance  for  possible  liability  resulting  from  a
cyberattack on our assets, however, we cannot assure you that the insurance coverage will be adequate to cover claims that may arise, or that we will be
able  to  maintain  adequate  insurance  at  rates  we  consider  reasonable.  A  loss  not  fully  covered  by  insurance  could  have  a  material  adverse  effect  on  our
financial position, results of operations and cash flows.

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Risks Related to Our Indebtedness

References  in  this  section  to  “us,  “we”  or  “our”  shall  mean  Diamondback  Energy,  Inc.  and  Diamondback  O&G  LLC,  collectively,  unless

otherwise specified.

We have relied in the past, and we may rely from time to time in the future, on borrowings under our revolving credit facility to fund a portion of our
capital  expenditures.  Unless  we  are  able  to  repay  borrowings  under  the  revolving  credit  facility  with  cash  flow  from  operations  and  proceeds  from
equity  or  debt  offerings,  implementing  our  capital  programs  may  require  an  increase  in  our  total  leverage  through  additional  debt  issuances.  In
addition, a reduction in availability under our revolving credit facility and the inability to otherwise obtain financing for our capital programs could
require us to curtail our capital expenditures.

We have historically relied on availability under our revolving credit facility to fund a portion of our capital expenditures. We expect that we will
continue to fund a portion of our capital expenditures with borrowings under the revolving credit facility, cash flow from operations and the proceeds from
debt and equity offerings. In the past, we have created availability under the revolving credit facility by repaying outstanding borrowings with the proceeds
from debt or equity offerings. We cannot assure you that we will choose to or be able to access the capital markets to repay any such future borrowings.
Instead, we may be required or choose to finance our capital expenditures through additional debt issuances, which would increase our total amount of debt
outstanding. If the availability under the revolving credit facility were reduced, and we were otherwise unable to secure other sources of financing, we may
be required to curtail our capital expenditures, which could limit our ability to fund our drilling activities and acquisitions or otherwise finance the capital
expenditures necessary to replace our reserves.

Our  substantial  level  of  indebtedness  could  adversely  affect  our  financial  condition  and  prevent  us  from  fulfilling  our  obligations  under  our
indebtedness.

As of December 31, 2020, we had total consolidated outstanding principal indebtedness of $5.8 billion, including $4.6 billion outstanding under
our  senior  notes  and  $23  million  outstanding  under  our  revolving  credit  facility,  and  we  had  $1.98  billion  available  for  borrowing  under  our  revolving
credit facility. As of December 31, 2020, Viper LLC, one of our subsidiaries, had $84 million in outstanding borrowings, and $496 million available for
borrowing, under its revolving credit facility and $480 million outstanding under its 5.375% Senior Notes due 2027. As of December 31, 2020, Rattler
LLC, one of our subsidiaries, had $79 million in outstanding borrowings, and $521 million available for borrowing, under its revolving credit facility and
$500 million outstanding under its 5.625% Senior Notes due 2025.

We may in the future incur significant additional indebtedness under our revolving credit facility or otherwise in order to make acquisitions, to
develop  our  properties  or  for  other  purposes.  Our  level  of  indebtedness  could  have  important  consequences  to  you  and  affect  our  operations  in  several
ways,  including  the  following:  our  high  level  of  indebtedness  could  make  it  more  difficult  for  us  to  satisfy  our  obligations  with  respect  to  our  debt
instruments,  including  any  repurchase  obligations  that  may  arise  thereunder;  a  significant  portion  of  our  cash  flows  could  be  used  to  service  our
indebtedness, which could reduce the funds available to us for operations and other purposes; our high level of debt could increase our vulnerability to
general adverse economic and industry conditions; the covenants contained in the agreements governing certain of our outstanding indebtedness will limit
our ability to borrow additional funds, dispose of assets, pay dividends and make certain investments; our high level of debt may place us at a competitive
disadvantage  compared  to  our  competitors  that  are  less  leveraged  and,  therefore,  may  be  able  to  take  advantage  of  opportunities  that  our  indebtedness
would prevent us from pursuing; our debt covenants may also limit management’s discretion in operating our business and our flexibility in planning for,
and reacting to, changes in the economy and in our industry; our high level of debt could limit our ability to access the capital markets to raise capital on
favorable  terms;  our  high  level  of  debt  may  impair  our  ability  to  obtain  additional  financing  in  the  future  for  working  capital,  capital  expenditures,
acquisitions, general corporate or other purposes; and we may be vulnerable to interest rate increases, as our borrowings under our revolving credit facility
are at variable interest rates.

We may still be able to incur substantial additional indebtedness in the future, which could further exacerbate the risks that we and our subsidies

face.

Restrictive covenants in certain of our existing and future debt instruments may limit our ability to respond to changes in market conditions or pursue
business opportunities.

Certain  of  our  debt  instruments  contain,  and  the  terms  of  any  future  indebtedness  may  contain,  restrictive  covenants  that  limit  our  ability  to,

among other things: incur or guarantee additional indebtedness; make certain investments; create

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liens; sell or transfer assets; issue preferred stock; merge or consolidate with another entity; pay dividends or make other distributions; create unrestricted
subsidiaries; and engage in transactions with affiliates.

Under our revolving credit facility we are allowed, among other things, to designate one or more of our subsidiaries as “unrestricted subsidiaries”
that are not subject to certain restrictions contained in the revolving credit facility. Under our revolving credit facility, we designated Viper, Viper’s general
partner, Viper’s subsidiary, Rattler, Rattler’s general partner and Rattler’s subsidiaries as unrestricted subsidiaries, and upon such designation, they were
automatically released from any and all obligations under the revolving credit facility, including the related guaranty. Further Viper, Viper’s general partner,
Viper’s subsidiaries, Rattler, Rattler’s general partner and Rattler’s subsidiaries are designated as unrestricted subsidiaries under the indentures governing
our outstanding senior notes.

We and our subsidiaries may be prevented from taking advantage of business opportunities that arise because of the limitations imposed on us by
the  restrictive  covenants  and  financial  covenants  contained  in  our  and  our  subsidiaries’  debt  instruments.  As  an  example,  our  revolving  credit  facility
requires us to maintain a total net debt to capitalization ratio. The requirement that we and our subsidiaries comply with these provisions may materially
adversely  affect  our  and  our  subsidiaries  ability  to  react  to  changes  in  market  conditions,  take  advantage  of  business  opportunities  we  believe  to  be
desirable, obtain future financing, fund needed capital expenditures or withstand a continuing or future downturn in our business.

A breach of any of these restrictive covenants could result in default under the applicable debt instrument. If default occurs under our revolving
credit facility, the lenders thereunder may elect to declare all borrowings outstanding, together with accrued interest and other fees, to be immediately due
and  payable,  which  would  result  in  an  event  of  default  under  the  indentures  governing  our  senior  notes.  The  lenders  will  also  have  the  right  in  these
circumstances to terminate any commitments they have to provide further borrowings. If the indebtedness under our revolving credit facility and our senior
notes were to be accelerated, we cannot assure you that our assets would be sufficient to repay in full that indebtedness.

Our indebtedness is structurally subordinated to the indebtedness and other liabilities of our subsidiaries, and our obligations are not obligations of any
of our subsidiaries.

Our senior indebtedness obligations are obligations exclusively of Diamondback Energy, Inc. and Diamondback O&G LLC, and not of any of our
other subsidiaries. None of our subsidiaries is a guarantor of our senior indebtedness. Any assets of our subsidiaries will not be directly available to satisfy
the claims of our creditors, including lenders under our revolving credit facility and holders of the senior notes. Except to the extent we are a creditor with
recognized claims against our subsidiaries, all claims of creditors of our subsidiaries will have priority over our equity interests in such subsidiaries (and
therefore the claims of our creditors, including lenders under our revolving credit facility and holders of the senior notes) with respect to the assets of such
subsidiaries. Even if we are recognized as a creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security
interests in the assets of any such subsidiary and to any indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, our
senior indebtedness will be structurally subordinated to all indebtedness and other liabilities of any of our subsidiaries and any subsidiaries that we may in
the future acquire or establish. For additional information regarding our subsidiaries outstanding debt as of December 31, 2020, see Note 11—Debt to our
consolidated financial statements included elsewhere in this report.

Servicing our indebtedness requires a significant amount of cash, and we may not have sufficient cash flow from our business to pay our substantial
indebtedness.

Our ability to make scheduled payments of the principal, to pay interest on or to refinance our indebtedness, including our senior notes, depends
on our future performance, which is subject to economic, financial, competitive and other factors beyond our control. Our business may not generate cash
flow from operations in the future sufficient to service our debt and make necessary capital expenditures. If we are unable to generate such cash flow, we
may  be  required  to  adopt  one  or  more  alternatives,  such  as  reducing  or  delaying  capital  expenditures,  selling  assets,  restructuring  debt  or  obtaining
additional equity capital on terms that may be onerous or highly dilutive. However, we cannot assure you that undertaking alternative financing plans, if
necessary,  would  allow  us  to  meet  our  debt  obligations.  In  the  absence  of  such  cash  flows,  we  could  have  substantial  liquidity  problems  and  might  be
required  to  sell  material  assets  or  operations  to  attempt  to  meet  our  debt  service  and  other  obligations.  The  indenture  governing  the  2025  Senior  Notes
restricts our ability to use the proceeds from asset sales. We may not be able to consummate those asset sales to raise capital or sell assets at prices that we
believe  are  fair,  and  proceeds  that  we  do  receive  may  not  be  adequate  to  meet  any  debt  service  obligations  then  due.  Our  ability  to  refinance  our
indebtedness will depend on the capital markets and our financial condition at the time. We may not be able to engage in any of these activities or engage in
these activities on desirable terms, which could result in a default on our debt obligations and have an adverse effect on our financial condition.

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We depend on our subsidiaries for dividends, distributions and other payments.

We  depend  on  our  subsidiaries  for  dividends,  distributions  and  other  payments.  We  are  a  legal  entity  separate  and  distinct  from  our  operating
subsidiaries.  There  are  statutory  and  regulatory  limitations  on  the  payment  of  dividends  or  distributions  by  certain  of  our  subsidiaries  to  us.  If  our
subsidiaries are unable to make dividend or distribution payments to us and sufficient cash or liquidity is not otherwise available, we may not be able to
make dividend payments to our stockholders or principal and interest payments on our outstanding indebtedness.

We and our subsidiaries may still be able to incur substantial additional indebtedness in the future, which could further exacerbate the risks that we
and our subsidiaries face.

We and our subsidiaries may be able to incur substantial additional indebtedness in the future. The terms of our and our subsidiaries’ revolving
credit facilities and the indentures restrict, but in each case do not completely prohibit, us from doing so. Further, the indentures governing our and our
subsidiaries’ notes allow us to issue additional notes, incur certain other additional debt and to have subsidiaries that do not guarantee the senior notes and
which  may  incur  additional  debt,  which  would  be  structurally  senior  to  the  senior  notes.  In  addition,  the  indentures  governing  the  senior  notes  do  not
prevent us from incurring other liabilities that do not constitute indebtedness. If we or a guarantor incur any additional indebtedness that ranks equally with
the senior notes (or with the guarantees thereof), including additional unsecured indebtedness or trade payables, the holders of that indebtedness will be
entitled  to  share  ratably  with  holders  of  the  senior  notes  in  any  proceeds  distributed  in  connection  with  any  insolvency,  liquidation,  reorganization,
dissolution or other winding-up of us or a guarantor. If new debt or other liabilities are added to our current debt levels, the related risks that we and our
subsidiaries now face could intensify.

If we experience liquidity concerns, we could face a downgrade in our debt ratings which could restrict our access to, and negatively impact the terms
of, current or future financings or trade credit.

Our ability to obtain financings and trade credit and the terms of any financings or trade credit is, in part, dependent on the credit ratings assigned
to our debt by independent credit rating agencies. We cannot provide assurance that any of our current ratings will remain in effect for any given period of
time or that a rating will not be lowered or withdrawn entirely by a rating agency if, in its judgment, circumstances so warrant. Factors that may impact our
credit ratings include debt levels, planned asset purchases or sales and near-term and long-term production growth opportunities, liquidity, asset quality,
cost structure, product mix and commodity pricing levels. A ratings downgrade could adversely impact our ability to access financings or trade credit and
increase our borrowing costs.

Borrowings under our, Viper LLC’s and Rattler LLC’s revolving credit facilities expose us to interest rate risk.

Our earnings are exposed to interest rate risk associated with borrowings under our and our subsidiaries’ revolving credit facilities. The terms of
our  and  our  subsidiaries’  revolving  credit  facilities  provide  for  interest  on  borrowings  at  a  floating  rate  equal  to  an  alternate  base  rate  tied  to  LIBOR.
LIBOR tends to fluctuate based on multiple facts, including general short-term interest rates, rates set by the U.S. Federal Reserve and other central banks,
the supply of and demand for credit in the London interbank market and general economic conditions. We use interest rate swaps to reduce interest rate
exposure with respect to our floating rate debt. Our weighted average interest rate on borrowings under our revolving credit facility was 2.02% during the
year ended December 31, 2020. Viper LLC’s weighted average interest rate on borrowings from its revolving credit facility was 2.20% during the year
ended December 31, 2020. Rattler LLC’s weighted average interest rate on borrowings from its revolving credit facility was 2.10% during the year ended
December 31, 2020. If interest rates increase, so will our interest costs, which may have a material adverse effect on our results of operations and financial
condition.

On July 27, 2017, the U.K. Financial Conduct Authority (the authority that regulates LIBOR) announced that it intends to stop compelling banks
to submit rates for the calculation of LIBOR after 2021. It is unclear whether new methods of calculating LIBOR will be established or if LIBOR will
continue to exist after 2021. The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, is considering replacing U.S. dollar
LIBOR with a newly created index. It is not possible to predict the effect of these changes, other reforms or the establishment of alternative reference rates
in the United States or elsewhere.

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Risks Related to Our Common Stock

The  corporate  opportunity  provisions  in  our  certificate  of  incorporation  could  enable  affiliates  of  ours  to  benefit  from  corporate  opportunities  that
might otherwise be available to us.

Subject to the limitations of applicable law, our certificate of incorporation, among other things; permits us to enter into transactions with entities
in which one or more of our officers or directors are financially or otherwise interested; permits any of our stockholders, officers or directors to conduct
business that competes with us and to make investments in any kind of property in which we may make investments; and provides that if any director or
officer of one of our affiliates who is also one of our officers or directors becomes aware of a potential business opportunity, transaction or other matter
(other than one expressly offered to that director or officer in writing solely in his or her capacity as our director or officer), that director or officer will have
no duty to communicate or offer that opportunity to us, and will be permitted to communicate or offer that opportunity to such affiliates and that director or
officer will not be deemed to have (i) acted in a manner inconsistent with his or her fiduciary or other duties to us regarding the opportunity or (ii) acted in
bad faith or in a manner inconsistent with our best interests.

These provisions create the possibility that a corporate opportunity that would otherwise be available to us may be used for the benefit of one of

our affiliates.

We have engaged in the past and may in the future engage in transactions with our affiliates. The terms of such transactions and the resolution of any
conflicts that may arise may not always be in our or our stockholders’ best interests.

In the past, we have engaged in transactions with affiliated companies and may do so again in the future. These transactions, and the resolution of
any conflicts that may arise in connection with such related party transactions, including pricing, duration or other terms of service, may not always be in
our or our stockholders’ best interests.

If the price of our common stock fluctuates significantly, your investment could lose value.

Although our common stock is listed on the Nasdaq Global Select Market, we cannot assure you that an active public market will continue for our
common stock. If an active public market for our common stock does not continue, the trading price and liquidity of our common stock will be materially
and adversely affected. If there is a thin trading market or “float” for our stock, the market price for our common stock may fluctuate significantly more
than the stock market as a whole. Without a large float, our common stock would be less liquid than the stock of companies with broader public ownership
and, as a result, the trading prices of our common stock may be more volatile. In addition, in the absence of an active public trading market, investors may
be unable to liquidate their investment in us. Furthermore, the stock market is subject to significant price and volume fluctuations, and the price of our
common stock could fluctuate widely in response to several factors, including; our quarterly or annual operating results; changes in our earnings estimates;
investment  recommendations  by  securities  analysts  following  our  business  or  our  industry;  additions  or  departures  of  key  personnel;  changes  in  the
business,  earnings  estimates  or  market  perceptions  of  our  competitors;  our  failure  to  achieve  operating  results  consistent  with  securities  analysts’
projections; changes in industry, general market or economic conditions; and announcements of legislative or regulatory changes.

The stock market has experienced extreme price and volume fluctuations in recent years that have significantly affected the quoted prices of the
securities of many companies, including companies in our industry. The changes often appear to occur without regard to specific operating performance.
The  price  of  our  common  stock  could  fluctuate  based  upon  factors  that  have  little  or  nothing  to  do  with  our  company  and  these  fluctuations  could
materially reduce our stock price.

The declaration of dividends and any repurchases of our common stock are each within the discretion of our board of directors based upon a review of
relevant considerations, and there is no guarantee that we will pay any dividends on or repurchase shares of our common stock in the future or at
levels anticipated by our stockholders.

On February 13, 2018, we initiated payment of quarterly cash dividends on our common stock payable beginning with the first quarter of 2018.
The  decision  to  pay  any  future  dividends,  however,  is  solely  within  the  discretion  of,  and  subject  to  approval  by,  our  board  of  directors.  Our  board  of
directors’ determination with respect to any such dividends, including the record date, the payment date and the actual amount of the dividend, will depend
upon  our  profitability  and  financial  condition,  contractual  restrictions,  restrictions  imposed  by  applicable  law  and  other  factors  that  the  board  deems
relevant  at  the  time  of  such  determination.  Based  on  its  evaluation  of  these  factors,  the  board  of  directors  may  determine  not  to  declare  a  dividend,  or
declare dividends at rates that are less than currently anticipated, either of which could reduce returns to our stockholders.

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In May 2019, our board of directors approved a stock repurchase program to acquire up to $2 billion of our outstanding common stock through
December 31, 2020. This repurchase program is at the discretion of our board of directors and may be suspended from time to time, modified, extended or
discontinued by our board of directors at any time. The repurchase program was suspended beginning in the first quarter of 2020 and expired on December
31, 2020.

A change of control could limit our use of net operating losses.

As of December 31, 2020, we had a net operating loss, or NOL, carry forward of approximately $2.3 billion for federal income tax purposes. If we
were to experience an “ownership change,” as determined under Section 382 of the Code, our ability to offset taxable income arising after the ownership
change with NOLs generated prior to the ownership change would be limited, possibly substantially. In general, an ownership change would establish an
annual  limitation  on  the  amount  of  our  pre-change  NOLs  that  we  could  utilize  to  offset  our  taxable  income  in  any  future  taxable  year  to  an  amount
generally equal to the value of our stock immediately prior to the ownership change multiplied by an interest rate periodically promulgated by the IRS
referred to as the long-term tax-exempt rate. In general, an ownership change will occur if there is a cumulative increase in the ownership of our stock
totaling more than 50 percentage points by one or more “5% shareholders” (as defined in the Code) at any time during a rolling three-year period.

If securities or industry analysts do not publish research or reports about our business, if they adversely change their recommendations regarding our
stock or if our operating results do not meet their expectations, our stock price could decline.

The trading market for our common stock will be influenced by the research and reports that industry or securities analysts publish about us or our
business. If one or more of these analysts cease coverage of our company or fail to publish reports on us regularly, we could lose visibility in the financial
markets,  which  in  turn  could  cause  our  stock  price  or  trading  volume  to  decline.  Moreover,  if  one  or  more  of  the  analysts  who  cover  our  company
downgrade our stock or if our operating results do not meet their expectations, our stock price could decline.

We may issue preferred stock whose terms could adversely affect the voting power or value of our common stock.

Our certificate of incorporation authorizes us to issue, without the approval of our stockholders, one or more classes or series of preferred stock
having such designations, preferences, limitations and relative rights, including preferences over our common stock respecting dividends and distributions,
as our board of directors may determine. The terms of one or more classes or series of preferred stock could adversely impact the voting power or value of
our common stock. For example, we might grant holders of preferred stock the right to elect some number of our directors in all events or on the happening
of specified events or the right to veto specified transactions. Similarly, the repurchase or redemption rights or liquidation preferences we might assign to
holders of preferred stock could affect the residual value of the common stock.

Provisions in our certificate of incorporation and bylaws and Delaware law make it more difficult to effect a change in control of the company, which
could adversely affect the price of our common stock.

The existence of some provisions in our certificate of incorporation and bylaws and Delaware corporate law could delay or prevent a change in
control of our company, even if that change would be beneficial to our stockholders. Our certificate of incorporation and bylaws contain provisions that
may make acquiring control of our company difficult, including; provisions regulating the ability of our stockholders to nominate directors for election or
to bring matters for action at annual meetings of our stockholders; limitations on the ability of our stockholders to call a special meeting and act by written
consent; the ability of our board of directors to adopt, amend or repeal bylaws, and the requirement that the affirmative vote of holders representing at least
66  2/3%  of  the  voting  power  of  all  outstanding  shares  of  capital  stock  be  obtained  for  stockholders  to  amend  our  bylaws;  the  requirement  that  the
affirmative vote of holders representing at least 66 2/3% of the voting power of all outstanding shares of capital stock be obtained to remove directors; the
requirement that the affirmative vote of holders representing at least 66 2/3% of the voting power of all outstanding shares of capital stock be obtained to
amend  our  certificate  of  incorporation;  and  the  authorization  given  to  our  board  of  directors  to  issue  and  set  the  terms  of  preferred  stock  without  the
approval of our stockholders.

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These provisions also could discourage proxy contests and make it more difficult for you and other stockholders to elect directors and take other
corporate actions. As a result, these provisions could make it more difficult for a third party to acquire us, even if doing so would benefit our stockholders,
which may limit the price that investors are willing to pay in the future for shares of our common stock.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 3. LEGAL PROCEEDINGS

We are a party to various legal proceedings, disputes and claims arising in the course of our business, including those that arise from interpretation
of federal and state laws and regulations affecting the natural gas and crude oil industry, personal injury claims, title disputes, royalty disputes, contract
claims,  contamination  claims  relating  to  oil  and  natural  gas  exploration  and  development  and  environmental  claims,  including  claims  involving  assets
previously sold to third parties and no longer part of our current operations. While the ultimate outcome of the pending proceedings, disputes or claims, and
any resulting impact on us, cannot be predicted with certainty, we believe that none of these matters, if ultimately decided adversely, will have a material
adverse effect on our financial condition, cash flows or results of operations.

For additional information regarding contingencies, see Note 17—Commitments and Contingencies included in notes to the consolidated financial

statements included elsewhere in this Annual Report.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

PART II

ITEM  5.  MARKET  FOR  REGISTRANT’S  COMMON  EQUITY,  RELATED  STOCKHOLDER  MATTERS  AND  ISSUER  PURCHASES  OF
EQUITY SECURITIES

Listing and Holders of Record

Our common stock is listed on the Nasdaq Global Select Market under the symbol “FANG”. There were 2,564 holders of record of our common

stock on February 19, 2021.

Dividend Policy 

On February 13, 2018, we announced the initiation of an annual cash dividend in the amount of $0.50 per share of our common stock payable
quarterly which began with the first quarter of 2018. Beginning with the first quarter of 2019, the annual cash dividend was set at $0.75 per share of our
common stock. Then, beginning with the fourth quarter of 2019, the annual cash dividend was increased to $1.50 per share for our common stock and,
beginning with the fourth quarter of 2020, the annual cash dividend was further increased to $1.60 per share of our common stock. The decision to pay any
future dividends is solely within the discretion of, and subject to approval by, our board of directors. Our board of directors’ determination with respect to
any such dividends, including the record date, the payment date and the actual amount of the dividend, will depend upon our profitability and financial
condition, contractual restrictions, restrictions imposed by applicable law and other factors that the board deems relevant at the time of such determination.

Unregistered Sales of Equity Securities

As previously disclosed in our Current Report on Form 8-K filed with the SEC on December 21, 2020, we entered into a definitive purchase and
sale agreement, dated as of December 18, 2020, with Guidon and certain of Guidon’s affiliates to acquire approximately 32,500 net acres in the Northern
Midland Basin and certain related oil and gas assets. Consideration for the Pending Guidon Acquisition consists of $375 million in cash and 10.6 million
shares  of  our  common  stock,  subject  to  adjustment.  The  shares  to  be  issued  in  the  Pending  Guidon  Acquisition  will  be  issued  in  reliance  upon  the
exemption from the registration requirements of the Securities Act provided by Section 4(a)(2) of the Securities Act as sales by an issuer not involving any
public offering. We have agreed to file with the SEC, and use our reasonable best efforts to cause to be declared effective, a shelf registration statement
registering for resale these shares within 60 days following the closing of the Pending Guidon Acquisition, which is expected to occur on February 26,
2021.

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Repurchases of Equity Securities

Our common stock repurchase activity for the three months ended December 31, 2020 was as follows:

Period

October 1, 2020 - October 31, 2020
November 1, 2020 - November 30, 2020
December 1, 2020 - December 31, 2020

Total

Total Number of
Shares Purchased

Average Price
Paid Per
(1)
Share

Total Number of Shares
Purchased as Part of Publicly
Announced Plan

Approximate Dollar Value of
Shares that May Yet Be
Purchased Under the Plan

(2)

($ in millions, except per share amounts, shares in thousands)

— $
— $
— $
— $

— 
— 
— 
— 

— $
— $
— $
—

1,304 
1,304 
— 

(1) The average price paid per share is net of any commissions paid to repurchase stock.
(2) In  May  2019,  our  board  of  directors  approved  a  stock  repurchase  program  to  acquire  up  to  $2  billion  of  our  outstanding  common  stock  through

December 31, 2020. This repurchase program was suspended beginning in the first quarter of 2020 and expired on December 31, 2020.

ITEM 6. SELECTED FINANCIAL DATA

[Reserved.]

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ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The  following  discussion  and  analysis  should  be  read  in  conjunction  with  our  consolidated  financial  statements  and  notes  thereto  appearing
elsewhere  in  this  Annual  Report.  The  following  discussion  contains  “forward-looking  statements”  that  reflect  our  future  plans,  estimates,  beliefs,  and
expected  performance.  Actual  results  and  the  timing  of  events  may  differ  materially  from  those  contained  in  these  forward-looking  statements  due  to  a
number of factors. See Item 1A. “Risk Factors” and “Cautionary Statement Regarding Forward-Looking Statements.”

Overview

We operate in two operating segments: (i) the upstream segment, which is engaged in the acquisition, development, exploration and exploitation
of  unconventional,  onshore  oil  and  natural  gas  reserves  primarily  in  the  Permian  Basin  in  West  Texas  and  (ii)  through  our  subsidiary,  Rattler,  the
midstream  operations  segment,  which  is  focused  on  ownership,  operation,  development  and  acquisition  of  the  midstream  infrastructure  assets  in  the
Midland and Delaware Basins of the Permian Basin.

Upstream Operations

In our upstream segment, our activities are primarily directed at the horizontal development of the Wolfcamp and Spraberry formations in the
Midland  Basin  and  the  Wolfcamp  and  Bone  Spring  formations  in  the  Delaware  Basin.  We  intend  to  continue  to  develop  our  reserves  and  increase
production through development drilling and exploitation and exploration activities on our multi-year inventory of identified potential drilling locations
and through acquisitions that meet our strategic and financial objectives, targeting oil-weighted reserves.

As of December 31, 2020, we had approximately 378,678 net acres, which primarily consisted of approximately 194,591 net acres in the Midland
Basin and approximately 152,587 net acres in the Delaware Basin. As of December 31, 2020, we had an estimated 10,413 gross horizontal locations that
we believe to be economic at $60.00 per Bbl WTI.

In  addition,  our  publicly  traded  subsidiary  Viper  owns  mineral  interests  underlying  approximately  787,264  gross  acres  and  24,350  net  royalty

acres in the Permian Basin and Eagle Ford Shale. Approximately 52% of these net royalty acres are operated by us.

Midstream Operations

In  our  midstream  operations  segment,  Rattler’s  crude  oil  infrastructure  assets  consist  of  gathering  pipelines  and  metering  facilities,  which
collectively gather crude oil for its customers. Rattler’s facilities gather crude oil from horizontal and vertical wells in our ReWard, Spanish Trail, Pecos
and Fivestones areas within the Permian Basin. Rattler’s natural gas gathering and compression system consists of gathering pipelines, compression and
metering facilities, which collectively service the production from our Pecos area assets within the Permian Basin. Rattler’s water sourcing and distribution
assets consists of water wells, frac pits, pipelines and water treatment facilities, which collectively gather and distribute water from Permian Basin aquifers
to the drilling and completion sites through buried pipelines and temporary surface pipelines. Rattler’s gathering and disposal system spans approximately
517 miles and consists of gathering pipelines along with produced water disposal, or PWD, wells and facilities which collectively gather and dispose of
produced water from operations throughout our Permian Basin acreage.

We  have  entered  into  multiple  fee-based  commercial  agreements  with  Rattler,  each  with  an  initial  term  ending  in  2034,  utilizing  Rattler’s
infrastructure assets or its planned infrastructure assets to provide an array of essential services critical to our upstream operations in the Delaware and
Midland Basins. Our agreements with Rattler include substantial acreage dedications.

2020 Transactions and Recent Developments

COVID-19 and Collapse in Commodity Prices

On  March  11,  2020,  the  World  Health  Organization  characterized  the  global  outbreak  of  the  novel  strain  of  coronavirus,  COVID-19,  as  a
“pandemic.” To limit the spread of COVID-19, governments have taken various actions including the issuance of stay-at-home orders and social distancing
guidelines, causing some businesses to suspend operations and a reduction in demand for many products from direct or ultimate customers. Although many
stay-at-home orders have expired and certain restrictions on conducting business have been lifted, the COVID-19 pandemic resulted in a

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widespread  health  crisis  and  a  swift  and  unprecedented  reduction  in  international  and  U.S.  economic  activity  which,  in  turn,  has  adversely  affected  the
demand for oil and natural gas and caused significant volatility and disruption of the financial markets.

In early March 2020, oil prices dropped sharply and continued to decline reaching negative levels. During 2020, the posted price for the WTI price
for crude oil ranged from $(37.63) to $63.27 per barrel, or Bbl, and the NYMEX Henry Hub price of natural gas ranged from $1.48 to $3.35 per MMBtu.
On January 29, 2021, the NYMEX WTI price for crude oil was $52.20 per Bbl and the NYMEX Henry Hub price of natural gas was $2.56 per MMBtu. In
response  to  recent  volatility  in  commodity  prices,  many  producers  have  reduced  their  capital  expenditure  budgets.  This  was  a  result  of  multiple  factors
affecting the supply and demand in global oil and natural gas markets, including actions taken by OPEC members and other exporting nations impacting
commodity price and production levels and a significant decrease in demand due to the ongoing COVID-19 pandemic. While OPEC members and certain
other nations agreed in April 2020 to cut production and subsequently extended such production cuts through December 2020, which helped to reduce a
portion of the excess supply in the market and improve crude oil prices, they agreed to increase production by 500,000 barrels per day beginning in January
2021. We cannot predict if or when commodity prices will stabilize and at what levels.

As a result of the reduction in crude oil demand caused by factors discussed above, in 2020, we lowered our 2020 capital budgets and production
guidance, curtailed near term production and reduced rig count, all of which may be subject to further reductions or curtailment if the commodity markets
and  macroeconomic  conditions  worsen.  Although  we  have  restored  curtailed  production,  actions  taken  in  response  to  the  COVID-19  pandemic  and
depressed  commodity  pricing  environment  have  had  and  are  expected  to  continue  to  have  an  adverse  effect  on  our  business,  financial  results  and  cash
flows.

In  addition,  as  a  result  of  the  sharp  decline  in  commodity  prices  in  early  March  2020,  and  the  continued  depressed  oil  pricing  throughout  the
second and third quarters of 2020, we recorded $6.0 billion of aggregate non-cash ceiling test impairments for the year ended December 31, 2020. These
impairment charges adversely affected our results of operations but did not reduce our cash flows. If the trailing 12-month commodity prices continue to
fall as compared to the commodity prices used in prior quarters, we will have material write downs in subsequent quarters. Our production, proved reserves
and cash flows will also be adversely impacted. Our results of operations may be further adversely impacted by any government rule, regulation or order
that may impose production limits, as well as pipeline capacity and storage constraints, in the Permian Basin where we operate.

Given  the  dynamic  nature  of  these  events,  we  cannot  reasonably  estimate  the  period  of  time  that  the  COVID-19  pandemic,  the  depressed
commodity prices and the adverse macroeconomic conditions will persist, the full extent of the impact they will have on our industry and our business,
financial condition, results of operations or cash flows, or the pace or extent of any subsequent recovery.

Pending Merger with QEP Resources, Inc.

On December 20, 2020, we, QEP and the Merger Sub, entered into the merger agreement under which the Merger Sub will be merged with and
into QEP, with QEP surviving as our wholly owned subsidiary. If the pending merger is completed, each QEP stockholder will receive, in exchange for
each share of QEP common stock held by such stockholder immediately prior to the closing of the pending merger, 0.050 of a share of our common stock.
The  completion  of  the  pending  merger  is  subject  to  satisfaction  or  waiver  of  certain  customary  mutual  closing  conditions,  including  the  receipt  of  the
required  approvals  from  QEP’s  stockholders.  The  pending  merger  is  expected  to  close  shortly  following  the  special  meeting  of  the  QEP  stockholders,
which is scheduled for March 16, 2021, subject to QEP stockholder approval and other customary closing conditions. See “Items 1 and 2. Business and
Properties—Overview—Pending Merger with QEP Resources, Inc.” for additional information regarding the pending merger.

We expect that the pending merger will:

add material Tier-1 Midland Basin inventory;

be accretive on all relevant 2021 per share metrics including cash flow per share, free cash flow per share and leverage, before accounting for
synergies;

lower 2021 reinvestment ratio and enhance ability to generate free cash flow, de-lever and return capital to our stockholders; and

realize significant, tangible annual synergies of $60 to $80 million comprised of general and administrative expense savings, cost of capital and
interest expense savings, improved capital efficiency from high-graded development of

•

•

•

•

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combined acreage, physical adjacencies to increase lateral lengths and significant adjacent Permian Basin midstream assets.

In addition, we expect to maintain our investment grade credit ratings following the completion of the pending merger.

Pending Guidon Acquisition

On  December  18,  2020,  we  entered  into  a  definitive  purchase  and  sale  agreement  with  Guidon  and  certain  of  Guidon’s  affiliates  to  acquire
approximately  32,500  net  acres  in  the  Northern  Midland  Basin  and  certain  related  oil  and  natural  gas  assets,  which  we  refer  to  as  the  Pending  Guidon
Acquisition. Consideration for the Pending Guidon Acquisition consists of $375 million in cash and 10.6 million shares of our common stock, subject to
adjustment. The cash portion of this transaction is expected to be funded through a combination of cash on hand and borrowings under our credit facility.
The Pending Guidon Acquisition is expected to close on February 26, 2021.

Fourth Quarter 2020 Dividend Declaration and Increase

On February 18, 2021, our board of directors declared a cash dividend for the fourth quarter of 2020 of $0.40 per share of common stock, payable
on March 11, 2021 to our stockholders of record at the close of business on March 4, 2021, representing a 6.7% increase per share from the previously paid
quarterly dividend.

Implementation of Viper’s Common Unit Repurchase Program

On  November  6,  2020,  the  board  of  directors  of  Viper’s  general  partner  approved  an  expansion  of  Viper’s  return  of  capital  program  with  the
implementation of a common unit repurchase program to acquire up to $100 million of Viper’s outstanding common units through December 31, 2021.
During  the  year  ended  December  31,  2020,  Viper  repurchased  approximately  $24  million  of  its  common  units  under  its  repurchase  program.  As
of December 31, 2020, $76 million remained available for use to repurchase common units under Viper’s common unit repurchase program.

Implementation of Rattler’s Common Unit Repurchase Program

On  October  29,  2020,  the  board  of  directors  of  Rattler’s  general  partner  approved  a  common  unit  repurchase  program  to  acquire  up  to  $100
million of Rattler’s outstanding common units through December 31, 2021. During the year ended December 31, 2020, Rattler repurchased approximately
$15 million of its common stock under its repurchase program. As of December 31, 2020, $85 million remained available for use to repurchase common
units under Rattler’s common unit repurchase program.

May 2020 Notes Offering

On May 26, 2020, we completed a notes offering of $500 million in aggregate principal amount of our 4.750% Senior Notes due 2025, which we
refer  to  as  the  May  2020  Notes.  We  received  net  proceeds  of  approximately  $496  million  from  the  offering  of  the  May  2020  Notes  which  we  used  to,
among  other  things,  make  an  equity  contribution  to  Energen  to  purchase  $209  million  in  aggregate  principal  amount  of  Energen’s  4.625%  senior  notes
pursuant to a tender offer. For additional information regarding this notes offering, see “—Liquidity and Capital Resources—Indebtedness—The May 2020
Notes and Tender Offer for Energen’s 4.625% Senior Notes and Repurchase of Energen’s 7.35% Medium-term Notes” below.

Rattler Notes Offering

On  July  14,  2020,  Rattler  completed  an  offering,  which  we  refer  to  as  the  Rattler  Notes  Offering,  of  its  5.625%  senior  notes  due  2025  in  the
aggregate principal amount of $500 million, which we refer to as the Rattler Notes. Rattler received net proceeds of approximately $490 million from the
Rattler  Notes  Offering  and  loaned  the  gross  proceeds  of  the  Rattler  Notes  Offering  to  Rattler  LLC  to  pay  down  borrowings  under  its  revolving  credit
facility. For additional information regarding the Rattler Notes Offering, see “—Liquidity and Capital Resources—Indebtedness—Rattler’s Notes” below.

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Operational Update

Our development program is focused entirely within the Permian Basin, where we continue to focus on long-lateral multi-well pad development.
Our horizontal development consists of multiple targeted intervals, primarily within the Wolfcamp and Spraberry formations in the Midland Basin and the
Wolfcamp and Bone Springs formations in the Delaware Basin.

As  of  December  31,  2020,  we  were  operating  eight  drilling  rigs  and  currently  intend  to  operate  between  eight  and  12  drilling  rigs  in  2021  on

average across our current acreage position in the Midland and Delaware Basins.

In  the  Midland  Basin,  we  continued  to  have  positive  results  across  our  core  development  areas  located  within  Midland,  Martin,  Howard,
Glasscock and Andrews counties, where development has primarily focused on drilling long-lateral, multi-well pads targeting the Spraberry and Wolfcamp
formations.

In  the  Delaware  Basin,  we  have  now  drilled  and  completed  a  significant  number  of  wells  in  Pecos,  Reeves  and  Ward  counties  targeting  the
Wolfcamp A, which we believe has been de-risked across a significant portion of our total acreage position and remains our primary development target. In
2021, we expect to focus development on these areas.

In the fourth quarter of 2020, we executed on our business strategy, providing a foundation for continued solid operational performance in 2021.
We are starting to see the benefits from our strategy to cut activity and high-grade development focusing on our most productive areas in terms of capital
efficiency  and  early-time  well  performance.  While  the  impact  of  the  recent  winter  storms  in  the  Permian  Basin  on  the  first  quarter  2021  production  is
expected to be significant (ranging from four to five days of total net production lost), we expect to overcome this adverse impact for the full year 2021.
Well costs and cash operating costs remain near all-time lows, providing for increased returns to our stockholders as commodity prices have risen in recent
months.  In  2021,  we  intend  to  continue  to  focus  on  low  cost  operations  and  best  in  class  execution  and  currently  plan  to  hold  our  fourth  quarter  2020
production flat while generating free cash flow used to pay dividends and pay down debt. To combat potential fluctuation in service costs, we have worked
to implement new and more efficient drilling and completions methodologies and will continue to seek opportunities to control additional well cost where
possible. Our 2021 drilling and completion budget accounts for capital costs that we expect to occur during the year.

In  2021,  we  remain  focused  on  navigating  our  industry  challenges  by  staying  disciplined,  improving  our  industry-leading  cost  structure,

maintaining production and increasing environmental transparency.

Environmental Responsibility Initiatives and Highlights

In February 2021, we announced significant enhancements to our commitment to environmental, social responsibility and governance, or ESG,
performance  and  disclosure,  including  Scope  1  and  methane  emission  intensity  reduction  targets.  Our  goals  include  the  reduction  of  our  Scope  1
greenhouse  gas  intensity  by  at  least  50%  and  methane  intensity  by  at  least  70%,  in  each  case  by  2024  from  the  2019  levels.  To  further  underscore  our
commitment  to  carbon  neutrality,  we  are  also  implementing  our  “Net  Zero  Now”  initiative  under  which,  effective  January  1,  2021,  every  hydrocarbon
molecule we produce is anticipated to be produced with zero Scope 1 emissions. To the extent our greenhouse gas and methane intensity targets do not
eliminate  our  carbon  footprint,  we  intend  to  purchase  carbon  credits  to  offset  the  remaining  emissions.  We  also  plan  to  increase  the  weighting  of  ESG
metrics in our annual short-term incentive compensation plan to motivate our executives to advance our environmental responsibility goals.

With respect to flaring, we flared 0.9% of our gross natural gas production in the fourth quarter of 2020. For the full year ended 2020, we flared

2.0% of our gross natural gas production, down 64% from 2019.

2021 Capital Budget

We have currently budgeted 2021 total capital spend of $1.4 billion to $1.6 billion, consisting of $1.2 billion to $1.4 billion for horizontal drilling
and  completions  including  non-operated  activity,  $60  million  to  $80  million  for  midstream  investments,  excluding  joint  venture  investments,  and  $70
million to $90 million for infrastructure and other expenditures, excluding the cost of any leasehold and mineral interest acquisitions. We expect to drill and
complete 215 to 235 gross horizontal wells in 2021. Should commodity prices weaken, we intend to act responsibly and, consistent with our prior practices,
reduce capital spending. If commodity prices strengthen, we intend to grow oil production within our 2021 budget, pay down indebtedness and return cash
to our stockholders.

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Results of Operations

    For a discussion of the results of operations for the year ended December 31, 2019 as compared to the year ended December 31, 2018, please refer to
“Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year
ended December 31, 2019 (filed with the SEC on February 27, 2020), which discussion is incorporated in this report by reference from such prior report on
Form 10-K. The following table sets forth selected historical operating data for the periods indicated:

Year Ended December 31,

2020

2019

Revenues (in millions):

Oil sales
Natural gas sales
Natural gas liquid sales

Total oil, natural gas and natural gas liquid revenues

Production Data (in thousands):

Oil (MBbls)
Natural gas (MMcf)
Natural gas liquids (MBbls)
Combined volumes (MBOE)

Daily oil volumes (BO/d)
Daily combined volumes (BOE/d)

Average Prices:

Oil ($ per Bbl)
Natural gas ($ per Mcf)
Natural gas liquids ($ per Bbl)
Combined ($ per BOE)

(1)

Oil, hedged ($ per Bbl)
Natural gas, hedged ($ per MMbtu)
Natural gas liquids, hedged ($ per Bbl)
Average price, hedged ($ per BOE)

(1)

(1)

(1)

$

$

$
$
$
$

$
$
$
$

2,410  $
107 
239 
2,756  $

66,182 
130,549 
21,981 
109,921 

180,825 
300,331 

36.41  $
0.82  $
10.87  $
25.07  $

40.34  $
0.67  $
10.83  $
27.26  $

3,554 
66 
267 
3,887 

68,518 
97,613 
18,498 
103,285 

187,721 
282,972 

51.87 
0.68 
14.42 
37.63 

51.96 
0.86 
15.20 
38.00 

(1) Hedged prices reflect the effect of our commodity derivative transactions on our average sales prices and include gains and losses on cash settlements
for matured commodity derivatives, which we do not designate for hedge accounting. Hedged prices exclude gains or losses resulting from the early
settlement of commodity derivative contracts.

Production Data

Substantially all of our revenues are generated through the sale of oil, natural gas and natural gas liquids production. The following tables set forth

our production data for the years ended December 31, 2020 and 2019:

Oil (MBbls)
Natural gas (MMcf)
Natural gas liquids (MBbls)

58

Year Ended December 31,
2019
2020

60 %
20 %
20 %
100 %

66 %
16 %
18 %
100 %

Table of Contents

Comparison of the Years Ended December 31, 2020 and 2019

Oil, Natural Gas and Natural Gas Liquids Revenues. Our revenues are a function of oil, natural gas and natural gas liquids production volumes

sold and average sales prices received for those volumes.

The net dollar effect of the change in prices are shown below:

Effect of changes in price:

Oil
Natural gas
Natural gas liquids

Total revenues due to change in price

Effect of changes in production volumes:

Oil
Natural gas
Natural gas liquids

Total change in revenues

Change in prices

Production
(1)
volumes

Total net dollar effect
of change
(in millions)

$
$
$

(15.46)
0.14 
(3.55)

Change in
production
(1)
volumes

66,182  $
130,549  $
21,981  $
$

(1,023)
18 
(77)
(1,082)

Prior period
average prices

Total net dollar effect
of change
(in millions)

(2,336) $
32,936  $
3,483  $

51.87  $
0.68  $
14.42  $
$
$

(121)
22 
50 
(49)
(1,131)

(1) Production volumes are presented in MBbls for oil and natural gas liquids and MMcf for natural gas.

Our  oil,  natural  gas  and  natural  gas  liquids  revenues  decreased  by  approximately  $1.1  billion,  or  29%,  to  $2.8  billion  for  the  year  ended
December 31, 2020 from $3.9 billion for the year ended December 31, 2019, largely attributable to lower oil average sales prices resulting from the impact
of the COVID-19 pandemic and other volatility in global commodity prices as discussed in “—COVID-19 and collapse in Commodity Prices” above.

Average  daily  production  sold  increased  by  17,359  BOE/d  to  300,331  BOE/d  during  the  year  ended  December  31,  2020  from  282,972  BOE/d
during the year ended December 31, 2019, primarily due to an increase in natural gas liquids and natural gas production, which was partially offset by
temporarily curtailing a portion of our oil production volumes during 2020 in response to the sudden drop in demand and prices for oil stemming from the
COVID-19 pandemic.

Midstream Services Revenue. The following table shows midstream services revenue for the years ended December 31, 2020 and 2019:

Midstream services

Year Ended December 31,
2019
2020

$

(in millions)
50  $

64 

Our midstream services revenue represents fees charged to our joint interest owners and third parties for the transportation of oil and natural gas
along with water gathering and related disposal facilities. Midstream services revenue decreased by $14 million for the year ended December 31, 2020 as
compared to the year ended December 31, 2019 primarily due to a reduction in sourced water volumes due to the lower level of drilling and completion
activity in 2020.

Lease Operating Expenses. The following table shows lease operating expenses for the years ended December 31, 2020 and 2019:

(in millions, except per BOE amounts)
Lease operating expenses

Year Ended December 31,

2020

2019

Amount

Per BOE

Amount

Per BOE

$

425  $

3.87  $

490  $

4.74 

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Lease operating expenses for the year ended December 31, 2020 as compared to the year ended December 31, 2019 decreased by $65 million, or
$0.87 per BOE. Lease operating expenses decreased due to a reduction in work over and well maintenance activity through overall efficiencies gained, as
well as improvements in infrastructure which reduced power generation costs and trucking fees. In addition to these efficiencies we have seen a reduction
in service pricing in 2020, driven by the reduction in current industry activity levels. We expect service pricing may increase in future periods, particularly
if current industry activity levels increase.

Production and Ad Valorem Tax Expense. The following table shows production and ad valorem tax expense for the years ended December 31,

2020 and 2019:

(in millions, except per BOE amounts)
Production taxes
Ad valorem taxes

Total production and ad valorem expense

Year Ended December 31,

2020

Amount
135 
60 
195 

$

$

$

$

Per BOE

1.23  $
0.54 
1.77  $

2019

Amount
184 
64 
248 

$

$

Per BOE

1.78 
0.62 
2.40 

Production taxes as a % of oil, natural gas, and natural gas liquids revenue

4.9 %

4.7 %

In general, production taxes are directly related to production revenues and are based upon current year commodity prices. Production taxes for
the year ended December 31, 2020 as compared to the year ended December 31, 2019 decreased by $49 million, or $0.55 per BOE, due to current year
commodity prices. Production taxes as a percentage of production revenues remained consistent for the year ended December 31, 2020 compared to the
year ended December 31, 2019.

Gathering and Transportation Expense. The following table shows gathering and transportation expense for the year ended December 31, 2020

and 2019:

(in millions, except per BOE amounts)
Gathering and transportation expense

Year Ended December 31,

2020

2019

Amount

Per BOE

Amount

Per BOE

$

140  $

1.27  $

88  $

0.86 

For the year ended December 31, 2020, the per BOE increases for gathering and transportation expenses are primarily attributable to recording
minimum volume commitment fees in 2020, as well as an increase in fees for our gas production and an overall change in our product mix, with gas and
natural gas liquids production becoming a greater percentage of overall production.

Midstream Services Expense. The following table shows midstream services expense for the years ended December 31, 2020 and 2019:

Midstream services expense

Year Ended December 31,
2019
2020

$

(in millions)
105  $

91 

Midstream services expense represents costs incurred to operate and maintain our oil and natural gas gathering and transportation systems, natural
gas lift, compression infrastructure and water transportation facilities. Midstream services expense for the year ended December 31, 2020 as compared to
the year ended December 31, 2019 increased by $14 million primarily due to increased volume and build out of the Rattler systems.

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Depreciation, Depletion and Amortization. The following table provides the components of our depreciation, depletion and amortization expense

for the years ended December 31, 2020 and 2019:

(in millions, except BOE amounts)
Depletion of proved oil and natural gas properties
Depreciation of midstream assets
Depreciation of other property and equipment

Depreciation, depletion and amortization expense

Oil and natural gas properties depletion per BOE

Year Ended December 31,
2019
2020

$

$

$

1,242  $
44 
18 
1,304  $

11.30  $

1,398 
33 
16 
1,447 

13.54 

The decrease in depletion of proved oil and natural gas properties of $156 million for the year ended December 31, 2020 as compared to the year
ended December 31, 2019 resulted primarily from a reduction in the average depletion rate for our oil and natural gas properties in 2020, which stemmed
from a decrease in the net book value of our properties due to the full cost ceiling impairments recorded in the first three quarters of 2020 as well as lower
production levels in 2020 as compared to 2019.

Impairment of Oil and Natural Gas Properties.  As  a  result  of  the  decline  in  commodity  prices  during  2020  and  2019,  we  recorded  non-cash
ceiling test impairments for the years ended December 31, 2020 and 2019 of $6.0 billion and $790 million, respectively, which is included in accumulated
depletion, depreciation, amortization and impairment on our consolidated balance sheet. The impairment charges affected our results of operations but did
not reduce cash flow. In addition to commodity prices, our production rates, levels of proved reserves, future development costs, transfers of unevaluated
properties and other factors will determine our actual ceiling test calculation and impairment analysis in future periods. If the trailing 12-month commodity
prices continue to fall as compared to the commodity prices used in prior quarters, we will continue to have material write-downs in subsequent quarters.

General and Administrative Expenses. The following table shows general and administrative expenses for the years ended December 31, 2020

and 2019:

(in millions, except per BOE amounts)
General and administrative expenses
Non-cash stock-based compensation

Total general and administrative expenses

Year Ended December 31,

2020

2019

Amount

Per BOE

Amount

Per BOE

$

$

51  $
37 
88  $

0.46  $
0.34 
0.80  $

56  $
48 
104  $

0.54 
0.46 
1.00 

General and administrative expenses for the year ended December 31, 2020 as compared to the year ended December 31, 2019 decreased by $16

million primarily due to a decrease in non-cash stock-based compensation.

Net Interest Expense. The following table shows net interest expense for the years ended December 31, 2020 and 2019:

Interest expense, net

Year Ended December 31,
2019
2020

$

(in millions)
197  $

172 

Net interest expense increased by $25 million for the year ended December 31, 2020 as compared to the year ended December 31, 2019. This
increase was primarily due to an increase in borrowings resulting from the issuance of the May 2020 Notes and the Rattler Notes. See Note 11—Debt for
further details regarding outstanding borrowings and interest expense.

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Derivatives. The following table shows the net gain (loss) on derivative instruments and the net cash received (paid) on settlements of derivative

instruments for the years ended December 31, 2020 and 2019:

Gain (loss) on derivative instruments, net
Net cash received (paid) on settlements

Year Ended December 31,
2019
2020

$
$

(in millions)
(81) $
250  $

(108)
80 

Our earnings are affected by the changes in value of our derivatives portfolio between periods and the related cash settlements of those derivatives.
To the extent the future commodity price outlook declines between measurement periods, we will have mark-to-market gains; while to the extent future
commodity price outlook increases between measurement periods, we will have mark-to-market losses.

Net  cash  received  (paid)  on  settlements  of  derivative  instruments  for  the  years  ended  December  31,  2020  and  2019  include  cash  received  on
contracts terminated prior to their contractual maturity of $17 million related to commodity contracts and $43 million related to interest rate swap contracts,
respectively.

Provision  for  (Benefit  from)  Income  Taxes.  The  following  table  shows  the  provision  for  (benefit  from)  income  taxes  for  the  years  ended

December 31, 2020 and 2019:

Provision for (benefit from) income taxes

Year Ended December 31,
2019
2020

(in millions)

$

(1,104) $

47 

The  change  in  our  income  tax  provision  was  primarily  due  to  the  pre-tax  loss  for  the  year  ended  December  31,  2020  as  compared  to  pre-tax
income for the year ended December 31, 2019, and the impact of recording a valuation allowance on Viper’s deferred tax assets during the year ended
December 31, 2020.

Liquidity and Capital Resources

Historically, our primary sources of liquidity have been cash flows from operations, proceeds from our public equity offerings, borrowings under
our revolving credit facility and proceeds from the issuance of the senior notes. Our primary uses of capital have been for the acquisition, development and
exploration of oil and natural gas properties.

As  we  pursue  our  business  and  financial  strategy,  we  regularly  consider  which  capital  resources,  including  cash  flow  and  equity  and  debt
financings,  are  available  to  meet  our  future  financial  obligations,  planned  capital  expenditure  activities  and  liquidity  requirements.  Our  future  ability  to
grow  proved  reserves  and  production  will  be  highly  dependent  on  the  capital  resources  available  to  us.  Continued  prolonged  volatility  in  the  capital,
financial and/or credit markets due to the COVID-19 pandemic, the depressed commodity markets and/or adverse macroeconomic conditions may limit our
access to, or increase our cost of, capital or make capital unavailable on terms acceptable to us or at all.

Liquidity and Cash Flow

Our cash flows for the years ended December 31, 2020 and 2019 are presented below:

Net cash provided by (used in) operating activities
Net cash provided by (used in) investing activities
Net cash provided by (used in) financing activities

Net change in cash

62

Year Ended December 31,

2020

2019

(in millions)

2,118  $
(2,101)
(37)
(20) $

2,739 
(3,888)
1,062 
(87)

$

$

Table of Contents

Operating Activities

Our  operating  cash  flow  is  sensitive  to  many  variables,  the  most  significant  of  which  is  the  volatility  of  prices  for  the  oil  and  natural  gas  we
produce. Prices for these commodities are determined primarily by prevailing market conditions. Regional and worldwide economic activity, weather and
other substantially variable factors influence market conditions for these products. These factors are beyond our control and are difficult to predict. See “–
Sources of our revenue” and Item 1A. “Risk Factors” above.

Net cash provided by operating activities decreased to $2.1 billion for the year ended December 31, 2020 as compared to $2.7 billion for the year
ended  December  31,  2019,  primarily  due  to  a  decline  in  our  oil  and  natural  gas  revenues,  which  was  partially  offset  by  a  decrease  in  lease  operating
expenses and other operating expenses and an increase in cash received on settlements of our derivative contracts.

Investing Activities

The purchase and development of oil and natural gas properties and related assets, and contributions to our equity method investments accounted
for  the  majority  of  our  $2.1  billion  and  $3.9  billion  in  cash  outlays  for  investing  activities  during  the  years  ended  December  31,  2020  and  2019,
respectively.

Contributions to equity method investments decreased to $102 million for the year ended December 31, 2020 as compared to $485 million for the
year ended December 31, 2019 as construction of both the EPIC Pipeline and Gray Oak Pipeline, which required substantial capital in 2019, was completed
during April 2020. As of December 31, 2020, Rattler’s anticipated future capital commitments for its equity method investments total $72 million in the
aggregate.  For  additional  information  regarding  our  equity  method  investments,  see  Note  10—Equity  Method  Investments  included  in  notes  to  the
consolidated financial statements included elsewhere in this Annual Report.

Capital Expenditure Activities

Our capital expenditures excluding acquisitions and equity method investments (on a cash basis) were as follows for the specified period:
Year Ended December 31,

Drilling, completions and non-operated additions to oil and natural gas properties
Infrastructure additions to oil and natural gas properties
Additions to midstream assets

(1)(2)

Total

2020

2019

(in millions)

1,611  $
108 
140 
1,859  $

2,557 
120 
244 
2,921 

$

$

(1) During the year ended December 31, 2020, in conjunction with our development program, we drilled 208 gross (195 net) operated horizontal wells, of
which 75 gross (70 net) wells were in the Delaware Basin and the remaining wells were in the Midland Basin, and turned 171 gross (159 net) operated
horizontal wells to production, of which 78 gross (74 net) wells were in the Delaware Basin and the remaining wells were in the Midland Basin.

(2) During the year ended December 31, 2019, in conjunction with our development program, we drilled 330 gross (296 net) operated horizontal wells, of
which  159  gross  (142  net)  wells  were  in  the  Delaware  Basin  and  the  remaining  wells  were  in  the  Midland  Basin,  and  turned  317  gross  (289  net)
operated horizontal wells to production, of which 139 gross (126 net) wells were in the Delaware Basin and the remaining wells were in the Midland
Basin.

Financing Activities

During the year ended December 31, 2020, the amount used in financing activities was primarily attributable to $348 million of repayments, net of
borrowings,  on  our  credit  facilities,  $239  million  in  aggregate  repayments  on  the  Energen  Notes  and  Viper  Notes,  $236  million  in  dividends  paid  to
stockholders, $98 million of share repurchases as part of our stock repurchase program, and $93 million in distributions to non-controlling interest. These
cash outlays were partially offset by net proceeds of $997 million from the issuance of the May 2020 Notes and the Rattler Notes during 2020.

During the year ended December 31, 2019, the amount provided by financing activities was primarily attributable to $341 million in net proceeds
from  Viper’s  public  offering  completed  on  March  1,  2019,  $720  million  in  net  proceeds  from  the  Rattler  Offering,  $39  million  in  proceeds  from  joint
ventures and $2.2 billion in proceeds from the December 2019 Notes, net of repayments, partially offset by $1.4 billion of repayments, net of borrowings,
under our credit facility, $44 million of premium on debt extinguishment, $122 million of distributions to our non-controlling interest, $13 million of share

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Table of Contents

repurchases for tax withholdings, $593 million of share repurchases as part of our stock repurchase program and $112 million of dividends to stockholders.

Indebtedness

Second Amended and Restated Credit Facility

At December 31, 2020, the maximum credit amount available under our credit agreement was $2.0 billion and the maturity date is November 1,
2022.  As  of  December  31,  2020,  we  had  approximately  $23  million  of  outstanding  borrowings  under  our  revolving  credit  facility,  which  we  believe
provides  ample  availability  for  future  borrowings,  including  funding  for  the  cash  portion  of  the  Guidon  acquisition  in  the  first  quarter  of  2021.  As  of
December 31, 2020, there was an aggregate of $3 million in letters of credit outstanding under our credit agreement, which reduce available borrowings on
a dollar for dollar basis. The weighted average interest rate on the credit agreement was 2.02% for the year ended December 31, 2020.

The  credit  agreement  contains  a  financial  covenant  that  requires  us  to  maintain  a  total  net  debt  to  capitalization  ratio  (as  defined  in  the  credit
agreement) of no more than 65%. Our non-guarantor restricted subsidiaries may incur debt for borrowed money in an aggregate principal amount up to
15% of consolidated net tangible assets (as defined in the credit agreement) and we and our restricted subsidiaries may incur liens if the aggregate amount
of debt secured by such liens does not exceed 15% of consolidated net tangible assets.

At December 31, 2020, we were in compliance with all financial maintenance covenants under the credit agreement, as then in effect. The lenders
may accelerate all of the indebtedness under our revolving credit facility upon the occurrence and during the continuance of any event of default. The credit
agreement  contains  customary  events  of  default,  including  non-payment,  breach  of  covenants,  materially  incorrect  representations,  cross-default,
bankruptcy and change of control.

The May 2020 Notes and Tender Offer for Energen’s 4.625% Senior Notes and Repurchase of Energen’s 7.35%
Medium-term Notes

On  May  26,  2020,  we  completed  a  registered  offering  of  $500  million  in  aggregate  principal  amount  of  our  4.750%  Senior  Notes  due  2025.
Interest on the May 2020 Notes accrues from May 26, 2020, and is payable in cash semi-annually on May 31 and November 30 of each year, beginning
November 30, 2020. The May 2020 Notes mature on May 31, 2025. We received net proceeds of approximately $496 million from the offering.

We used the net proceeds, among other things, to make an equity contribution to Energen to purchase $209 million in aggregate principal amount
of Energen’s 4.625% senior notes pursuant to a tender offer. As of December 31, 2020, $191 million in aggregate principal amount of Energen’s 4.625%
senior notes remained outstanding.

During the third quarter of 2020, we repurchased all $10 million in principal amount of Energen’s outstanding 7.350% medium-term notes due on

July 28, 2027 at a price of 120% of the aggregate principal amount.

For  additional  information,  see  Note  11—Debt  included  in  notes  to  the  consolidated  financial  statements  included  elsewhere  in  this  Annual

Report.

Energen Notes

On November 29, 2018, Energen became our wholly owned subsidiary and remained the issuer of an aggregate principal amount of $530 million
in notes, which we refer to as the Energen Notes. As of December 31, 2020, the aggregate principal amount of the Energen Notes had been reduced to $311
million consisting of: (a) $191 million aggregate principal amount of 4.625% senior notes due on September 1, 2021, (b) $100 million of 7.125% notes due
on February 15, 2028, and (c) $20 million of 7.32% notes due on July 28, 2022.

For additional information regarding the Energen Notes, See Note 11—Debt included in notes to the consolidated financial statements included

elsewhere in this Annual Report.

Viper’s Credit Agreement

    The Viper credit agreement provides for a revolving credit facility in the maximum credit amount of $2.0 billion and a borrowing base based on Viper
LLC’s oil and natural gas reserves and other factors (the “borrowing base”) of $580 million, subject to scheduled semi-annual and other elective borrowing
base redeterminations. The borrowing base is scheduled to be re-determined semi-annually with effective dates of May 1st and November 1st, and was
reaffirmed at $580 million by the

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Table of Contents

lenders during the regularly scheduled (semi-annual) fall 2020 redetermination in November 2020. As of December 31, 2020, Viper LLC had $84 million
of outstanding borrowings and $496 million available for future borrowings under the Viper credit agreement. During the year ended December 31, 2020,
the weighted average interest rate on Viper’s revolving credit facility was 2.20%.

As of December 31, 2020, Viper LLC was in compliance with all financial maintenance covenants under the Viper credit agreement, as then in

effect.

Viper’s Notes

On October 16, 2019, Viper completed an offering in which it issued its 5.375% Senior Notes due 2027 in aggregate principal amount of $500
million.  Viper  received  net  proceeds  of  approximately  $490  million  from  the  notes  offering  and  loaned  the  gross  proceeds  to  Viper  LLC  to  pay  down
borrowings under the Viper credit agreement. Interest  on  the  Viper  notes  accrues  at  a  rate  of  5.375%  per  annum,  payable  semi-annually  on  May  1  and
November 1 of each year, commencing on May 1, 2020. The Viper notes will mature on November 1, 2027.

During the year ended December 31, 2020, Viper repurchased $20 million of outstanding principal of the Viper notes at a cash price ranging from
97.5% to 98.5% of the aggregate principal amount, which resulted in an immaterial gain on extinguishment of debt, and $480 million in aggregate principal
amount remained outstanding at December 31, 2020.

See additional discussion in Note 11—Debt included in notes to the consolidated financial statements included elsewhere in this Annual Report.

Rattler’s Credit Agreement

In connection with the Rattler Offering, Rattler, as parent, and Rattler LLC, as borrower, entered into a credit agreement, dated May 28, 2019, with

Wells Fargo Bank, as administrative agent, and a syndicate of banks, as lenders party thereto, which we refer to as the Rattler credit agreement.

The Rattler credit agreement provides for a revolving credit facility in the maximum credit amount of $600 million and has a maturity date of
May 28, 2024. As of December 31, 2020, Rattler LLC had $79 million of outstanding borrowings and $521 million available for future borrowings under
the Rattler credit agreement. During the year ended December 31, 2020, the weighted average interest rate on the Rattler LLC revolving credit facility was
2.10%.

As of December 31, 2020, Rattler LLC was in compliance with all financial maintenance covenants under the Rattler credit agreement.

Rattler’s Notes

On July 14, 2020, Rattler completed an offering of $500 million in aggregate principal amount of its 5.625% Senior Notes due 2025, or the Rattler
Notes Offering. Interest on the Rattler notes is payable on January 15 and July 15 of each year, beginning on January 15, 2021. The Rattler notes mature on
July 15, 2025. Rattler received net proceeds of approximately $490 million from the Rattler Notes Offering. Rattler loaned the gross proceeds to Rattler
LLC under the terms of a subordinated promissory note, dated as of July 14, 2020. The promissory note requires Rattler LLC to repay the intercompany
loan to Rattler on the same terms and in the same amounts as the Rattler notes and has the same maturity date, interest rate, change of control repurchase
and  redemption  provisions.  Rattler  LLC  used  the  proceeds  from  the  Rattler  Notes  Offering  to  repay  a  portion  of  the  outstanding  borrowings  under  the
Rattler credit agreement.

For  additional  information  regarding  our  indebtedness,  see  Note  11—Debt  included  in  notes  to  the  consolidated  financial  statements  included

elsewhere in this Annual Report.

Capital Requirements and Sources of Liquidity

    Our board of directors approved a 2021 capital budget for drilling, midstream and infrastructure of $1.4 billion to $1.6 billion, representing a decrease of
50% from our 2020 capital budget. We estimate that, of these expenditures, approximately:

•

$1.2  billion  to  $1.4  billion  will  be  spent  on  drilling  and  completing  215  to  235  gross  (197  to  215  net)  horizontal  wells  across  our  operated
leasehold acreage in the Northern Midland and Southern Delaware Basins, with an average lateral length of approximately 10,100 feet;

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Table of Contents

•
•

$60 million to $80 million will be spent on midstream infrastructure, excluding joint venture investments; and
$70  million  to  $90  million  will  be  spent  on  infrastructure  and  other  expenditures,  excluding  the  cost  of  any  leasehold  and  mineral  interest
acquisitions.

We do not have a specific acquisition budget since the timing and size of acquisitions cannot be accurately forecasted.

During  the  year  ended  December  31,  2020,  we  spent  $1.6  billion  on  drilling  and  completion,  $140  million  on  midstream,  $108  million  on

infrastructure and $58 million on non-operated properties, for total capital expenditures of $1.9 billion.

In May 2019, our board of directors approved a stock repurchase program to acquire up to $2 billion of our outstanding common stock through
December 31, 2020. We repurchased approximately $98 million of our common stock under this program during the year ended December 31, 2020, prior
to the program’s expiration.

The amount and timing of our capital expenditures are largely discretionary and within our control. We could choose to defer a portion of these
planned capital expenditures depending on a variety of factors, including but not limited to the success of our drilling activities, prevailing and anticipated
prices for oil and natural gas, the availability of necessary equipment, infrastructure and capital, the receipt and timing of required regulatory permits and
approvals,  seasonal  conditions,  drilling  and  acquisition  costs  and  the  level  of  participation  by  other  interest  owners.  We  are  currently  operating  eight
drilling rigs and nine completion crews. We will continue monitoring commodity prices and overall market conditions and can adjust our rig cadence up or
down in response to changes in commodity prices and overall market conditions.

Based upon current oil and natural gas prices and production expectations for 2021, we believe our cash flows from operations, cash on hand and
borrowings under our revolving credit facility will be sufficient to fund our operations through year-end 2021. However, future cash flows are subject to a
number of variables, including the level of oil and natural gas production and prices, and significant additional capital expenditures will be required to more
fully develop our properties. Further, our 2021 capital expenditure budget does not allocate any funds for leasehold interest and property acquisitions.

We  monitor  and  adjust  our  projected  capital  expenditures  in  response  to  the  results  of  our  drilling  activities,  changes  in  prices,  availability  of
financing, drilling and acquisition costs, industry conditions, the timing of regulatory approvals, the availability of rigs, contractual obligations, internally
generated cash flow and other factors both within and outside our control. If we require additional capital, we may seek such capital through traditional
reserve base borrowings, joint venture partnerships, production payment financing, asset sales, offerings of debt and or equity securities or other means. We
cannot assure you that the needed capital will be available on acceptable terms or at all. If we are unable to obtain funds when needed or on acceptable
terms, we may be required to curtail our drilling programs, which could result in a loss of acreage through lease expirations. In addition, we may not be
able  to  complete  acquisitions  that  may  be  favorable  to  us  or  finance  the  capital  expenditures  necessary  to  replace  our  reserves.  If  there  is  a  decline  in
commodity prices, our revenues, cash flows, results of operations, liquidity and reserves may be materially and adversely affected.

Guarantor Financial Information

As  of  December  31,  2020,  Diamondback  O&G  LLC  is  the  sole  guarantor  under  the  December  2019  Notes  Indenture  governing  the  December

2019 Notes, the May 2020 Notes and the 2025 Indenture governing the 2025 Senior Notes.

Guarantees are “full and unconditional,” as that term is used in Regulation S-X, Rule 3-10(b)(3), except that such guarantees will be released or
terminated in certain circumstances set forth in the December 2019 Notes Indenture and the 2025 Indenture, such as, with certain exceptions, (1) in the
event Diamondback O&G LLC (or all or substantially all of its assets) is sold or disposed of, (2) in the event Diamondback O&G LLC ceases to be a
guarantor  of  or  otherwise  be  an  obligor  under  certain  other  indebtedness,  and  (3)  in  connection  with  any  covenant  defeasance,  legal  defeasance  or
satisfaction and discharge of the relevant indenture.

Diamondback  O&G  LLC’s  guarantees  of  the  December  2019  Notes,  the  May  2020  Notes  and  the  2025  Senior  Notes  are  senior  unsecured
obligations and rank senior in right of payment to any of its future subordinated indebtedness, equal in right of payment with all of its existing and future
senior  indebtedness,  including  its  obligations  under  its  revolving  credit  facility,  and  effectively  subordinated  to  any  of  its  existing  and  future  secured
indebtedness, to the extent of the value of the collateral securing such indebtedness.

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Table of Contents

The rights of holders of the Senior Notes against Diamondback O&G LLC may be limited under the U.S. Bankruptcy Code or state fraudulent
transfer or conveyance law. Each guarantee contains a provision intended to limit Diamondback O&G LLC’s liability to the maximum amount that it could
incur  without  causing  the  incurrence  of  obligations  under  its  guarantee  to  be  a  fraudulent  conveyance.  However,  there  can  be  no  assurance  as  to  what
standard a court will apply in making a determination of the maximum liability of Diamondback O&G LLC. Moreover, this provision may not be effective
to protect the guarantee from being voided under fraudulent conveyance laws. There is a possibility that the entire guarantee may be set aside, in which
case the entire liability may be extinguished.

The following tables present summarized financial information for Diamondback Energy, Inc., as the parent, and Diamondback O&G LLC, as the
guarantor subsidiary, on a combined basis after elimination of (i) intercompany transactions and balances between the parent and the guarantor subsidiary
and (ii) equity in earnings from and investments in any subsidiary that is a non-guarantor. The information is presented in accordance with the requirements
of Rule 13-01 under the SEC’s Regulation S-X. The financial information may not necessarily be indicative of results of operations or financial position
had the guarantor subsidiary operated as an independent entity.

Summarized Balance Sheets:
Assets:

Current assets
Property and equipment, net
Other noncurrent assets

Liabilities:

Current liabilities
Intercompany accounts payable, non-guarantor subsidiary
Long-term debt
Other noncurrent liabilities

Summarized Statement of Operations:

Revenues
Income (loss) from operations
Net income (loss)

67

December 31, 2020
(in millions)

$
$
$

$
$
$
$

308 
6,934 
6 

355 
335 
4,293 
886 

Year Ended December 31,
2020
(in millions)

$
$
$

1,618 
(3,466)
(2,344)

Table of Contents

Contractual Obligations

The following table summarizes our contractual obligations and commitments as of December 31, 2020:

(1)

(2)

(1)

Secured revolving credit facility
Senior notes
Interest expense related to the senior notes
DrillCo Agreement
Viper's secured revolving credit facility
Viper's senior notes
Interest expense related to Viper's senior notes
Rattler's secured revolving credit facility
Rattler's senior notes
Interest expense related to Rattler's senior notes
Asset retirement obligations
Drilling commitments
Sand supply agreements
Transportation commitments
Equity method investment capital contributions
Produced water disposal commitments
Operating lease obligations

(1)

(6)

(4)

(3)

(5)

2021

2022-2023

Payments Due by Period
2024-2025
(in millions)

Thereafter

Total

—  $
191 
181 
— 
— 
— 
26 
— 
— 
28 
1 
29 
18 
60 
57 
5 
6 
602  $

23  $
20 
342 
— 
84 
— 
52 
— 
— 
56 
— 
— 
36 
111 
15 
9 
3 
751  $

—  $

2,300 
279 
— 
— 
— 
52 
79 
500 
55 
— 
— 
36 
95 
— 
9 
— 
3,405  $

—  $

2,100 
212 
79 
— 
480 
52 
— 
— 
— 
108 
— 
5 
133 
— 
33 
— 
3,202  $

23 
4,611 
1,014 
79 
84 
480 
182 
79 
500 
139 
109 
29 
95 
399 
72 
56 
9 
7,960 

$

$

(1) Includes the outstanding principal amount under the revolving credit facilities, the table does not include commitment fees, interest expense or other
fees payable under this floating rate facility as we cannot predict the timing of future borrowings and repayments or interest rates to be charged.

(2) Interest represents the scheduled cash payments on the senior notes and Energen Notes.
(3) Amounts represent our estimates of future asset retirement obligations. Because these costs typically extend many years into the future, estimating
these future costs requires management to make estimates and judgments that are subject to future revisions based upon numerous factors, including
the rate of inflation, changing technology and the political and regulatory environment. See Note 9—Asset Retirement Obligations in the notes to the
consolidated financial statements included elsewhere in this Annual Report.

(4) Drilling  commitments  represent  future  minimum  expenditure  commitments  for  drilling  rig  services  under  contracts  to  which  the  Company  was  a

party on December 31, 2020.

(5) Timing of when capital commitments will be requested can vary.
(6) Operating lease obligations represent future commitments for building, equipment and vehicle leases.

The table above does not include estimated deficiency fees related to certain volume commitments as they are based off future volume deliveries

and differences from market pricing which we cannot predict.

Critical Accounting Policies and Estimates

The discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have

been prepared in accordance with accounting principles generally accepted in the United States.

Certain  amounts  included  in  or  affecting  our  consolidated  financial  statements  and  related  disclosures  must  be  estimated  by  our  management,
requiring certain assumptions to be made with respect to values or conditions that cannot be known with certainty at the time the consolidated financial
statements are prepared. These estimates and assumptions affect the amounts we report for assets and liabilities and our disclosure of contingent assets and
liabilities at the date of the consolidated financial statements. Critical accounting policies cover accounting estimates that are inherently uncertain because
the future resolution of such matters is unknown and actual results could differ from those estimates.

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Any effects on our business, financial position or results of operations resulting from revisions to these estimates are recorded in the period in
which  the  facts  that  give  rise  to  the  revision  become  known.  Significant  items  subject  to  such  estimates  and  assumptions  include  (i)  the  method  of
accounting for our oil and natural gas properties, (ii) estimates of proved oil and gas reserves and related present value estimates of future net cash flows
therefrom, (iii) impairments of the carrying value of oil and natural gas properties, (iv) fair value estimates of commodity derivatives and (v) estimates of
income taxes.

Below, we have provided expanded discussion of our more significant accounting policies, estimates and judgments.

Method of accounting for oil and natural gas properties

We  account  for  our  oil  and  natural  gas  producing  activities  using  the  full  cost  method  of  accounting.  Accordingly,  all  costs  incurred  in  the
acquisition, exploration and development of proved oil and natural gas properties, including the costs of abandoned properties, dry holes, geophysical costs
and annual lease rentals are capitalized. We also capitalize direct operating costs for services performed with internally owned drilling and well servicing
equipment. Internal costs capitalized to the full cost pool represent management’s estimate of costs incurred directly related to exploration and development
activities  such  as  geological  and  other  administrative  costs  associated  with  overseeing  the  exploration  and  development  activities.  All  internal  costs
unrelated to drilling activities are expensed as incurred. Sales or other dispositions of oil and natural gas properties are accounted for as adjustments to
capitalized costs, with no gain or loss recorded unless the ratio of cost to proved reserves would significantly change. Income from services provided to
working interest owners of properties in which we also own an interest, to the extent they exceed related costs incurred, are accounted for as reductions of
capitalized costs of oil and natural gas properties.

Depletion  of  evaluated  oil  and  natural  gas  properties  is  computed  on  the  units  of  production  method,  whereby  capitalized  costs  plus  estimated
future development costs are amortized over total proved reserves. If our production remains at approximately the same level from year to year, depletion
expense may be significantly different if our estimate of remaining reserves or future development costs changes significantly.

Costs associated with unevaluated properties are excluded from the full cost pool until we have made a determination as to the existence of proved
reserves. We assess all items classified as unevaluated property on an annual basis for possible impairment. We assess properties on an individual basis or
as  a  group  if  properties  are  individually  insignificant.  The  assessment  includes  consideration  of  the  following  factors,  among  others:  intent  to  drill;
remaining lease term; geological and geophysical evaluations; drilling results and activity; the assignment of proved reserves; and the economic viability of
development if proved reserves are assigned. During any period in which these factors indicate an impairment, the cumulative drilling costs incurred to date
for such property and all or a portion of the associated leasehold costs are transferred to the full cost pool and are then subject to amortization.

Oil and natural gas reserve quantities and standardized measure of future net revenue

Our independent engineers and technical staff prepare our estimates of oil and natural gas reserves and associated future net revenues. The SEC
has defined proved reserves as the estimated quantities of oil and natural gas which geological and engineering data demonstrate with reasonable certainty
to be recoverable in future years from known reservoirs under existing economic and operating conditions. The process of estimating oil and natural gas
reserves is complex, requiring significant decisions in the evaluation of available geological, geophysical, engineering and economic data. The data for a
given  property  may  also  change  substantially  over  time  as  a  result  of  numerous  factors,  including  additional  development  activity,  evolving  production
history and a continual reassessment of the viability of production under changing economic conditions. As a result, material revisions to existing reserve
estimates  occur  from  time  to  time.  Although  every  reasonable  effort  is  made  to  ensure  that  reserve  estimates  reported  represent  the  most  accurate
assessments possible, the subjective decisions and variances in available data for various properties increase the likelihood of significant changes in these
estimates. If such changes are material, they could significantly affect future amortization of capitalized costs and result in impairment of assets that may be
material.

There are numerous uncertainties inherent in estimating quantities of proved oil and natural gas reserves. Oil and natural gas reserve engineering is
a subjective process of estimating underground accumulations of oil and natural gas that cannot be precisely measured and the accuracy of any reserve
estimate  is  a  function  of  the  quality  of  available  data  and  of  engineering  and  geological  interpretation  and  judgment.  Results  of  drilling,  testing  and
production  subsequent  to  the  date  of  the  estimate  may  justify  revision  of  such  estimate.  Accordingly,  reserve  estimates  are  often  different  from  the
quantities of oil and natural gas that are ultimately recovered.

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Impairment

Under the full cost method of accounting, we are required to perform a ceiling test each quarter. The test determines a limit, or ceiling, on the book
value of the proved oil and natural gas properties. Net capitalized costs are limited to the lower of unamortized cost net of deferred income taxes, or the
cost center ceiling. The cost center ceiling is defined as the sum of (a) estimated future net revenues, discounted at 10% per annum, from proved reserves,
based on the trailing 12-month unweighted average of the first-day-of-the-month price, adjusted for any contract provisions and excluding the estimated
abandonment costs for properties with asset retirement obligations recorded on the balance sheet, (b) the cost of properties not being amortized, if any, and
(c) the lower of cost or market value of unproved properties included in the cost being amortized, including related deferred taxes for differences between
the book and tax basis of the oil and natural gas properties. If the net book value, including related deferred taxes, exceeds the ceiling, an impairment or
non-cash write-down is required. Impairments of our evaluated oil and natural gas properties are not reversible.

Derivatives

From time to time, we have used energy derivatives for the purpose of mitigating the risk resulting from fluctuations in the market price of crude
oil and natural gas. We exercise significant judgment in determining the types of instruments to be used, the level of production volumes to include in our
commodity derivative contracts, the prices at which we enter into commodity derivative contracts and the counterparties’ creditworthiness.

We have not designated our derivative instruments as hedges for accounting purposes and, as a result, mark our derivative instruments to fair value
and recognize the cash and non-cash change in fair value on derivative instruments for each period in the consolidated statements of operations. We are also
required  to  recognize  our  derivative  instruments  on  the  consolidated  balance  sheets  as  assets  or  liabilities  at  fair  value  with  such  amounts  classified  as
current or long-term based on their anticipated settlement dates. The accounting for the changes in fair value of a derivative depends on the intended use of
the derivative and resulting designation, and is generally determined using established index prices and other sources which are based upon, among other
things, futures prices and time to maturity. These fair values are recorded by netting asset and liability positions, including any deferred premiums, that are
with the same counterparty and are subject to contractual terms which provide for net settlement. Changes in the fair values of our commodity derivative
instruments  have  a  significant  impact  on  our  net  income  because  we  follow  mark-to-market  accounting  and  recognize  all  gains  and  losses  on  such
instruments in earnings in the period in which they occur.

Income Taxes

The amount of income taxes we record requires interpretations of complex rules and regulations of federal, state, and provincial tax jurisdictions.
We  use  the  asset  and  liability  method  of  accounting  for  income  taxes,  under  which  deferred  tax  assets  and  liabilities  are  recognized  for  the  future  tax
consequences  of  (1)  temporary  differences  between  the  financial  statement  carrying  amounts  and  the  tax  bases  of  existing  assets  and  liabilities  and  (2)
operating loss and tax credit carryforwards. Deferred income tax assets and liabilities are based on enacted tax rates applicable to the future period when
those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in
income in the period the rate change is enacted. A valuation allowance is provided for deferred tax assets when it is more likely than not the deferred tax
assets will not be realized.

The  accruals  for  deferred  tax  assets  and  liabilities  are  often  based  on  assumptions  that  are  subject  to  a  significant  amount  of  judgment  by
management. These assumptions and judgments are reviewed and adjusted as facts and circumstances change. Material changes to our income tax accruals
may occur in the future based on the progress of ongoing audits, changes in legislation or resolution of pending matters.

See Note 2—Summary of Significant Accounting Policies of the notes to the consolidated financial statements included elsewhere in this Annual

Report for a full discussion of our significant accounting policies.

Recent Accounting Pronouncements

For information regarding recent accounting pronouncements, See Note 2—Summary of Significant Accounting Policies included in notes to the

consolidated financial statements included elsewhere in this Annual Report.

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Off-Balance Sheet Arrangements

We had no off-balance sheet arrangements as of December 31, 2020. Please read Note 17—Commitments and Contingencies included in notes to
the consolidated financial statements included elsewhere in this Form 10-K for a discussion of our commitments and contingencies, some of which are not
recognized in the balance sheets under GAAP.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Commodity Price Risk

Our  major  market  risk  exposure  in  our  exploration  and  production  business  is  in  the  pricing  applicable  to  our  oil  and  natural  gas  production.
Realized pricing is primarily driven by the prevailing worldwide price for crude oil and spot market prices applicable to our natural gas production. Pricing
for oil and natural gas production has been volatile and unpredictable for several years, and we expect this volatility to continue in the future. The prices we
receive for production depend on many factors outside of our control.

We use derivatives, including swaps, basis swaps, swaptions, roll hedges and costless collars, to reduce price volatility associated with certain of

our oil and natural gas sales.

At December 31, 2020, we had a net liability derivative position of $255 million related to our commodity price risk derivatives. Utilizing actual
derivative  contractual  volumes  under  our  commodity  price  derivatives  as  of  December  31,  2020,  a  10%  increase  in  forward  curves  associated  with  the
underlying commodity would have increased the net liability position to $284 million, an increase of $29 million, while a 10% decrease in forward curves
associated with the underlying commodity would have decreased the net liability derivative position to $226 million, a decrease of $29 million. However,
any cash derivative gain or loss would be substantially offset by a decrease or increase, respectively, in the actual sales value of production covered by the
derivative instrument.

In our midstream operations business, we have indirect exposure to commodity price risk in that persistent low commodity prices may cause us or
Rattler’s  other  customers  to  delay  drilling  or  shut  in  production,  which  would  reduce  the  volumes  available  for  gathering  and  processing  by  our
infrastructure assets. If we or Rattler’s other customers delay drilling or temporarily shut in production due to persistently low commodity prices or for any
other  reason,  our  revenue  in  the  midstream  operations  segment  could  decrease,  as  Rattler’s  commercial  agreements  do  not  contain  minimum  volume
commitments.

For additional information on our open commodity derivative instruments at December 31, 2020, see Note 15—Derivatives.

Counterparty and Customer Credit Risk

Our principal exposures to credit risk are due to the concentration of receivables from the sale of our oil and natural gas production (approximately
$281  million  at  December  31,  2020),  and  to  a  lesser  extent,  receivables  resulting  from  joint  interest  receivables  (approximately  $56  million  at
December 31, 2020).

We  do  not  require  our  customers  to  post  collateral,  and  the  inability  of  our  significant  customers  to  meet  their  obligations  to  us  due  to  their
liquidity issues, bankruptcy, insolvency or liquidation may adversely affect our financial results. For the year ended December 31, 2020, four purchasers
each accounted for more than 10% of our revenue. For each of the years ended December 31, 2019 and 2018, three purchasers each accounted for more
than  10%  of  our  revenue.  No  other  customer  accounted  for  more  than  10%  of  our  revenue  during  these  periods.  Our  allowances  for  credit  losses  were
insignificant at December 31, 2020.

Joint operations receivables arise from billings to entities that own partial interests in the wells we operate. These entities participate in our wells
primarily based on their ownership in leases on which we intend to drill. We have little ability to control whether these entities will participate in our wells.

The ongoing COVID-19 pandemic, depressed commodity pricing environment and adverse macroeconomic conditions may enhance our customer

credit risk.

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Interest Rate Risk

We are subject to market risk exposure related to changes in interest rates on our indebtedness under our revolving credit facility. The terms of our
revolving credit facility provide for interest on borrowings at a floating rate equal to an alternative base rate (which is equal to the greatest of the prime rate,
the  Federal  Funds  effective  rate  plus  0.5%  and  3-month  LIBOR  plus  1.0%)  or  LIBOR,  in  each  case  plus  the  applicable  margin.  The  applicable  margin
ranges from 0.125% to 1.0% per annum in the case of the alternative base rate and from 1.125% to 2.0% per annum in the case of LIBOR, in each case
depending on the amount of the loan outstanding in relation to the borrowing base. Historically, we have used interest rate swaps and treasury locks to
reduce our exposure to variable rate interest payments associated with our revolving credit facility.

The following table summarizes the Company’s interest rate swaps as of December 31, 2020:

Type

Interest Rate Swap
Interest Rate Swap
Interest Rate Swap
Interest Rate Swap

Effective Date

December 31, 2024
December 31, 2024
December 31, 2024
December 31, 2024

Contractual Termination
Date

Notional Amount (in
millions)

Interest Rate

December 31, 2054 $
December 31, 2054 $
December 31, 2054 $
December 31, 2054 $

250 
250 
250 
250 

1.692 %
1.8361 %
1.852 %
1.722 %

For  additional  information  on  our  variable  interest  rate  debt  at  December  31,  2020,  see  Note  11—Debt. See Note 18—Subsequent  Events  for

discussion of derivative transactions which occurred subsequent to December 31, 2020.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The information required by this item appears beginning on page F-1 of this report.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Control and Procedures

Under the direction of our Chief Executive Officer and Chief Financial Officer, we have established disclosure controls and procedures, as defined
in Rule 13a-15(e) and 15d-15(e) under the Exchange Act that are designed to ensure that information required to be disclosed by us in the reports that we
file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. The
disclosure controls and procedures are also intended to ensure that such information is accumulated and communicated to management, including our Chief
Executive  Officer  and  Chief  Financial  Officer,  as  appropriate,  to  allow  timely  decisions  regarding  required  disclosures.  In  designing  and  evaluating  the
disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only
reasonable  assurance  of  achieving  the  desired  control  objectives.  In  addition,  the  design  of  disclosure  controls  and  procedures  must  reflect  the  fact  that
there are resource constraints and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to
their costs.

As  of  December  31,  2020,  an  evaluation  was  performed  under  the  supervision  and  with  the  participation  of  management,  including  our  Chief
Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule
13a-15(b)  under  the  Exchange  Act.  Based  upon  our  evaluation,  our  Chief  Executive  Officer  and  Chief  Financial  Officer  have  concluded  that  as  of
December 31, 2020, our disclosure controls and procedures are effective.

Changes in Internal Control over Financial Reporting

There have not been any changes in our internal control over financial reporting that occurred during the quarter ended December 31, 2020 that

have materially affected, or are reasonably likely to materially affect, internal controls over financial reporting.

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MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

The  management  of  the  Company  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over  financial  reporting.  The
Company’s  internal  control  over  financial  reporting  is  a  process  designed  under  the  supervision  of  the  Company’s  Chief  Executive  Officer  and  Chief
Financial Officer to provide reasonable assurance regarding the reliability of financial reporting and the preparation of the Company’s financial statements
for external purposes in accordance with generally accepted accounting principles.

Management conducted an evaluation of the effectiveness of the Company’s internal control over financial reporting based on the framework in
the  2013  Internal  Control-Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission.  Based  on  its
evaluation  under  the  framework  in  the  2013  Internal  Control-Integrated  Framework,  management  did  not  identify  any  material  weaknesses  in  the
Company’s internal control over financial reporting and determined that the Company maintained effective internal control over financial reporting as of
December 31, 2020.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  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.

Grant  Thornton  LLP,  the  independent  registered  public  accounting  firm  that  audited  the  consolidated  financial  statements  of  the  Company
included in this Annual Report on Form 10-K, has issued their report on the effectiveness of the Company’s internal control over financial reporting at
December 31, 2020. The report, which expresses an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting at
December 31, 2020, is included in this Item under the heading “Report of Independent Registered Public Accounting Firm.”

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Stockholders
Diamondback Energy, Inc.

Opinion on internal control over financial reporting

We  have  audited  the  internal  control  over  financial  reporting  of  Diamondback  Energy,  Inc.  (a  Delaware  corporation)  and  subsidiaries  (the
“Company”)  as  of  December  31,  2020,  based  on  criteria  established  in  the  2013  Internal  Control-Integrated  Framework  issued  by  the  Committee  of
Sponsoring  Organizations  of  the  Treadway  Commission  (“COSO”).  In  our  opinion,  the  Company  maintained,  in  all  material  respects,  effective  internal
control  over  financial  reporting  as  of  December  31,  2020,  based  on  criteria  established  in  the  2013  Internal  Control-Integrated  Framework  issued  by
COSO.

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States)  (“PCAOB”),  the
consolidated financial statements of the Company as of and for the year ended December 31, 2020, and our report dated February 25, 2021 expressed an
unqualified opinion on those financial statements.

Basis for opinion

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.  Our  responsibility  is  to  express  an  opinion  on  the  Company’s  internal  control  over  financial  reporting  based  on  our  audit.  We  are  a  public
accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities
laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. 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.

Definition and limitations of internal control over financial reporting

A company’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.  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  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  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.

/s/ GRANT THORNTON LLP

Oklahoma City, Oklahoma
February 25, 2021

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ITEM 9B. OTHER INFORMATION

None.

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

PART III

Information as to Item 10 will be set forth in our definitive proxy statement, which is to be filed pursuant to Regulation 14A with the SEC within

120 days after the close of the year ended December 31, 2020.

We have adopted a Code of Business Conduct and Ethics that applies to our Chief Executive Officer, Chief Financial Officer, principal accounting
officer  and  controller  and  persons  performing  similar  functions.  Any  amendments  to  or  waivers  from  the  code  of  business  conduct  and  ethics  will  be
disclosed  on  our  website.  The  Company  also  has  made  the  Code  of  Business  Conduct  and  Ethics  available  on  our  website  under  the  “Corporate
Governance”  section  at  http://ir.diamondbackenergy.com.  We  intend  to  satisfy  the  disclosure  requirements  under  Item  5.05  of  Form  8-K  regarding  an
amendment to, or waiver from, a provision of the Code of Business Conduct and Ethics by posting such information on our website at the address specified
above.

ITEM 11. EXECUTIVE COMPENSATION

Information as to Item 11 will be set forth in our definitive proxy statement, which is to be filed pursuant to Regulation 14A with the SEC within

120 days after the close of the year ended December 31, 2020.

ITEM  12.  SECURITY  OWNERSHIP  OF  CERTAIN  BENEFICIAL  OWNERS  AND  MANAGEMENT  AND  RELATED  STOCKHOLDER
MATTERS

Information as to Item 12 will be set forth in our definitive proxy statement, which is to be filed pursuant to Regulation 14A with the SEC within

120 days after the close of the year ended December 31, 2020.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

Information as to Item 13 will be set forth in our definitive proxy statement, which is to be filed pursuant to Regulation 14A with the SEC within

120 days after the close of the year ended December 31, 2020.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

Information as to Item 14 will be set forth in our definitive proxy statement, which is to be filed pursuant to Regulation 14A with the SEC within

120 days after the close of the year ended December 31, 2020.

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PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a) Documents included in this report:

1. Financial Statements

Report of Independent Registered Public Accounting Firm
Consolidated Balance Sheets
Consolidated Statements of Operations
Consolidated Statement of Stockholders' Equity
Consolidated Statements of Cash Flows
Notes to Consolidated Financial Statements

F-1
F-3
F-4
F-5
F-6
F-8

2. Financial Statement Schedules
Financial statement schedules have been omitted because they are either not required, not applicable or the information required to be
presented is included in the Company’s consolidated financial statements and related notes.

3. Exhibits

Exhibit Number

Description

2.1#

3.1

3.2

3.3

4.1

4.2

4.3

4.4

4.5

4.6

4.7

Agreement and Plan of Merger, dated as of December 20, 2020, by and among Diamondback Energy, Inc., Bohemia Merger Sub,
Inc. and QEP Resources, Inc. (incorporated by reference to Exhibit 2.1 to the Form 8-K, File No. 001-35700, filed by the Company
with the SEC on December 21, 2020).
Amended and Restated Certificate of Incorporation of the Company (incorporated by reference to Exhibit 3.1 to the Form 10-Q, File
No. 001-35700, filed by the Company with the SEC on November 16, 2012).

Certificate  of  Amendment  No.  1  of  the  Amended  and  Restated  Certificate  of  Incorporation  of  the  Company  (incorporated  by
reference to Exhibit 3.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on December 12, 2016).

Second Amended and Restated Bylaws of the Company (incorporated by reference to Exhibit 3.1 to the Form 8-K, File No. 001-
35700, filed by the Company with the SEC on November 19, 2019).
Description of the Company’s Securities (incorporated by reference to Exhibit 4.1 to the Form 10-K, File No. 000-35700, filed by
the Company with the SEC on February 27, 2020).

Specimen certificate for shares of common stock, par value $0.01 per share, of the Company (incorporated by reference to Exhibit
4.1 to Amendment No. 4 to the Registration Statement on Form S-1, File No. 333-179502, filed by the Company with the SEC on
August 20, 2012).

Indenture, dated as of December 20, 2016, among Diamondback Energy, Inc., the guarantors party thereto and Wells Fargo Bank,
National Association, as trustee (including the form of Diamondback Energy, Inc.’s 5.375% Senior Notes due 2025) (incorporated by
reference to Exhibit 4.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on December 21, 2016).
First  Supplemental  Indenture  for  the  5.375%  Senior  Notes  due  2025,  dated  as  of  January  29,  2018,  among  Diamondback  Energy,
Inc., the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.3 to
the Form 8-K, File No. 001-35700, filed by the Company with the SEC on January 30, 2018).
Second Supplemental Indenture for the 5.375% Senior Notes due 2025, dated as of October 12, 2018, among Sidewinder Merger Sub
Inc.,  a  subsidiary  of  the  Company,  the  Company,  the  other  guarantors  and  Wells  Fargo  Bank,  National  Association,  as  trustee
(incorporated by reference to Exhibit 4.8 to the Form 10-K, File No. 001-35700, filed by the Company with the SEC on February 25,
2019).
Third Supplemental Indenture for the 5.375% Senior Notes due 2025, dated as of January 28, 2019, among Energen Corporation,
Energen Resources Corporation, and EGN Services, Inc., each a direct or indirect subsidiary of the Company, the Company, the other
guarantors under the indenture and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.9 to
the Form 10-K, File No. 001-35700, filed by the Company with the SEC on February 25, 2019).
Indenture, dated as of December 5, 2019, between Diamondback Energy, Inc. and Wells Fargo Bank, National Association, as trustee
(incorporated by reference to Exhibit 4.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on December 5,
2019).

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3. Exhibits

Exhibit Number

Description

4.8

4.9

4.10

4.11

4.12

4.13

4.14

10.1

10.2+

10.3+

10.4+*
10.5+*
10.6+

10.7+

10.8+

10.9+

10.10+

10.11+*
10.12

First Supplemental Indenture, dated as of December 5, 2019, among Diamondback Energy, Inc., Diamondback O&G LLC and Wells
Fargo  Bank,  National  Association,  as  trustee  (including  the  form  of  2024  Notes,  2026  Notes  and  2029  Notes)  (incorporated  by
reference to Exhibit 4.2 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on December 5, 2019).

Second Supplemental Indenture, dated as of May 26, 2020, among Diamondback Energy, Inc., Diamondback O&G LLC and Wells
Fargo Bank, National Association, as trustee (including the form of Notes) (incorporated by reference to Exhibit 4.2 to the Form 8-K,
File No 001-35700, filed by the Company with the SEC on May 26, 2020).
Indenture, dated as of October 16, 2019, among Viper Energy Partners LP, as issuer, Viper Energy Partners LLC, as guarantor, and
Wells  Fargo  Bank,  National  Association,  as  trustee  (including  the  form  of  Viper  Energy  Partners  LP’s  5.375%  Senior  Notes  due
2027) (incorporated by reference to Exhibit 4.1 of Viper Energy Partners LP’s Current Report on Form 8-K (File 001-36505) filed on
October 17, 2019).

Consent  Letter,  dated  August  28,  2019,  between  Diamondback  Energy,  Inc.,  as  parent  guarantor,  Diamondback  O&G  LLC,  as
borrower,  certain  other  subsidiaries  of  Diamondback  Energy,  Inc.  as  guarantors,  Wells  Fargo  Bank,  National  Association,  as
administrative agent, and the lenders party thereto. (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on
Form 8-K (File 001-35700) filed on September 4, 2019).
Subordinated Promissory Note, dated as of October 16, 2019, by Viper Energy Partners LLC in favor of Viper Energy Partners LP
(incorporated  by  reference  to  Exhibit  10.2  of  Viper  Energy  Partners  LP’s  Current  Report  on  Form  8-K  (File  001-36505)  filed  on
October 17, 2019).
Indenture, dated as of July 14, 2020, among Rattler Midstream LP, as issuer, Rattler Midstream Operating LLC, Tall City Towers
LLC, Rattler Ajax Processing LLC, and Rattler OMOG LLC, as guarantors, and Wells Fargo Bank, National Association, as trustee
(including the form of Rattler Midstream LP’s 5.625% Senior Notes due 2025) (incorporated by reference to Exhibit 4.1 to the Form
8-K, File No. 001-38919, filed by Rattler Midstream LP with the SEC on July 14, 2020).
Form of Indenture, dated September  1, 1996, between Energen and The Bank of New York as trustee (incorporated by reference to
Exhibit 4(i) to Energen’s Registration Statement on Form S-3 (Registration No. 333-11239), filed with the SEC on August 30, 1996).
Diamondback Energy, Inc. 2019 Amended and Restated Equity Incentive Plan (incorporated by reference to Appendix A to Schedule
DEFA 14A filed by the Company with the SEC on April 26, 2020).
2020 Form of Time Vesting Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.2 of the Company’s
Annual Report on Form 10-K (File 001-35700) filed on February 27, 2020).

2020  Form  of  Performance  Vesting  Restricted  Stock  Unit  Award  Agreement  (incorporated  by  reference  to  Exhibit  10.3  of  the
Company’s Annual Report on Form 10-K (File 001-35700) filed on February 27, 2020).

2021 Form of Time Vesting Restricted Stock Unit Award Agreement.
2021 Form of Performance Vesting Restricted Stock Unit Agreement.
Form of Time-Vesting Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.1 to the Form 8-K, File No.
001-35700, filed by the Company with the SEC on March 5, 2014).
Form of Performance-Based Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.2 to the Form 8-K,
File No. 001-35700, filed by the Company with the SEC on March 5, 2014).
Form of Director and Officer Indemnification Agreement (incorporated by reference to
Exhibit 10.15 to Amendment No. 4 to the Registration Statement on Form S-1, File No. 333-179502, filed by the Company with the
SEC on August 20, 2012).

Diamondback  Energy,  Inc.  Senior  Management  Severance  Plan  (including  forms  of  participation  agreements  attached  thereto  as
Schedules C-1 and C-2) (incorporated by reference to Exhibit 10.5 of the Company’s Annual Report on Form 10-K (File 001-35700)
filed on February 27, 2020).

2014  Executive  Annual  Incentive  Compensation  Plan  (incorporated  by  reference  to  Exhibit  10.1  to  the  Form  8-K,  File  No.  001-
35700, filed by the Company with the SEC on April 2, 2014).

Executive Annual Incentive Compensation Plan adopted in February 2021.
Second  Amended  and  Restated  Credit  Agreement,  dated  as  of  November  1,  2013,  among  Diamondback  Energy,  Inc.,  as  parent
guarantor, Diamondback O&G LLC, as borrower, Wells Fargo Bank, National Association, as administrative agent, and the lenders
party thereto (incorporated by reference to Exhibit 10.3 to the Form 10-Q, File No. 001-35700, filed by the Company with the SEC
on November 5, 2013).

77

Table of Contents

3. Exhibits

Exhibit Number

Description

10.13

10.14

10.15

10.16

10.17

10.18

10.19

10.20

10.21

10.22

10.23

First Amendment, dated June 9, 2014, to the Second Amended and Restated Credit Agreement, originally dated November 1, 2013,
by and among the Company, as parent guarantor, Diamondback O&G LLC, as borrower, each of the guarantors party thereto, each
of  the  lenders  party  thereto  and  Wells  Fargo  Bank,  National  Association,  as  administrative  agent  (incorporated  by  reference  to
Exhibit 10.4 to the Form 10-Q, File No. 001-35700, filed by the Company with the SEC on August 7, 2014).

Second Amendment to the Second Amended and Restated Credit Agreement, dated as of November 13, 2014, among Diamondback
Energy, Inc., as parent guarantor, Diamondback O&G LLC, as borrower, the guarantors, Wells Fargo Bank, National Association, as
administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.2 to the Form 8-K, File No. 001-35700,
filed by the Company with the SEC on November 18, 2014).

Third  Amendment,  dated  as  of  June  21,  2016,  to  the  Second  Amended  and  Restated  Credit  Agreement,  dated  as  of  November  1,
2013,  by  and  among  Diamondback  Energy,  Inc.,  as  parent  guarantor,  Diamondback  O&G  LLC,  as  borrower,  certain  other
subsidiaries of Diamondback Energy, Inc., as guarantors, Wells Fargo Bank, National Association, as administrative agent, and the
lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K, File No. 001-35700,
filed by the Company with the SEC on June 27, 2016).
Fourth Amendment, dated as of December 15, 2016, to the Second Amended and Restated Credit Agreement, dated as of November
1,  2013,  by  and  among  Diamondback  Energy,  Inc.,  as  parent  guarantor,  Diamondback  O&G  LLC,  as  borrower,  certain  other
subsidiaries of Diamondback Energy, Inc., as guarantors, Wells Fargo Bank, National Association, as administrative agent, and the
lenders party thereto (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K, File No. 001-35700,
filed by the Company with the SEC on December 20, 2016).

Fifth Amendment, dated as of November 28, 2017, to the Second Amended and Restated Credit Agreement, dated as of November
1,  2013,  by  and  among  Diamondback  Energy,  Inc.,  as  parent  guarantor,  Diamondback  O&G  LLC,  as  borrower,  certain  other
subsidiaries of Diamondback Energy, Inc., as guarantors, Wells Fargo Bank, National Association, as administrative agent, and the
lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K, File No. 001-35700,
filed by the Company with the SEC on December 4, 2017).

Eighth  Amendment  to  the  Second  Amended  and  Restated  Credit  Agreement,  dated  as  of  October  26,  2018,  by  and  among
Diamondback Energy, Inc., as parent guarantor, Diamondback O&G LLC, as borrower, certain other subsidiaries of Diamondback
Energy,  Inc.,  as  guarantors,  Wells  Fargo  Bank,  National  Association,  as  administrative  agent,  and  the  lenders  party  thereto
(incorporated by reference to Exhibit 10.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on November 1,
2018).
Ninth Amendment to Second Amended and Restated Credit Agreement and Fourth Amendment to Amended and Restated Guaranty
and  Collateral  Agreement,  dated  as  of  November  29,  2018,  by  and  among  Diamondback  Energy,  Inc.,  as  parent  guarantor,
Diamondback  O&G  LLC,  as  borrower,  certain  other  subsidiaries  of  Diamondback  Energy,  Inc.,  as  guarantors,  Wells  Fargo  Bank,
National Association, as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to the Form 8-
K, File No. 001-35700, filed by the Company with the SEC on December 6, 2018).
Tenth  Amendment  to  Second  Amended  and  Restated  Credit  Agreement,  dated  as  of  March  25,  2019,  between  Diamondback,  as
parent guarantor, Diamondback O&G LLC, as borrower, certain other subsidiaries of Diamondback Energy, Inc. as guarantors, Wells
Fargo Bank, National Association, as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to
the Form 8-K (File No. 00 1-35700), filed by the Company with the SEC on March 29, 2019).

Eleventh  Amendment  to  Second  Amended  and  Restated  Credit  Agreement,  dated  as  of  June  28,  2019,  between  Diamondback
Energy, Inc., as parent guarantor, Diamondback O&G LLC, as borrower, certain other subsidiaries of Diamondback Energy, Inc. as
guarantors, Wells Fargo Bank, National Association, as administrative agent, and the lenders party thereto (incorporated by reference
to Exhibit 10.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on July 3, 2019).
Amended and Restated Credit Agreement, dated as of July 20, 2018, by and among, Viper Energy Partners LLC, as borrower, Viper
Energy  Partners  LP,  as  guarantor,  Wells  Fargo  Bank,  National  Association,  as  administrative  agent,  and  the  lenders  party  thereto
(incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K (File 001-36505) filed by Viper Energy Partners LP on
July 26, 2018).

Second Amendment to Amended and Restated Senior Secured Revolving Credit Agreement, dated as of September 24, 2019, among
Viper Energy Partners LLC, as borrower, Viper Energy Partners LP, as parent guarantor, Wells Fargo Bank, National Association, as
administrative agent, and the lender party thereto (incorporated by reference to Exhibit 10.1 of Viper Energy Partners LP’s Form 8-K
(File 001-36505) filed on September 30, 2019).

78

Table of Contents

3. Exhibits

Exhibit Number

Description

10.24

10.25

10.26

10.27

10.28

10.29

10.30

10.31+

10.32+

10.33+

10.34+

10.35+

21.1*

23.1*

23.2*

23.3*

31.1*

31.2*

Third Amendment to Amended and Restated Senior Secured Revolving Credit Agreement, dated as of October 8, 2019, among Viper
Energy  Partners  LLC,  as  borrower,  Viper  Energy  Partners  LP,  as  parent  guarantor,  Wells  Fargo  Bank,  National  Association,  as
administrative agent, and the lender party thereto (incorporated by reference to Exhibit 10.1 of Viper Energy Partners LP’s Form 8-K
(File 001-36505) filed on October 10, 2019).
Fourth Amendment to Amended and Restated Senior Secured Revolving Credit Agreement, dated as of November 29, 2019, among
Viper Energy Partners LLC, as borrower, Viper Energy Partners LP, as parent guarantor, Wells Fargo Bank, National Association, as
administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 of the Partnership’s Current Report on
Form 8-K (File No. 001-36505) filed on December 5, 2019).
Fifth Amendment to Amended and Restated Senior Secured Revolving Credit Agreement, dated as of May 11, 2020, among Viper
Energy  Partners  LLC,  as  borrower,  Viper  Energy  Partners  LP,  as  parent  guarantor,  Wells  Fargo  Bank,  National  Association,  as
administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 of the Partnership’s Current Report on
Form 8-K (File 001-36505) filed on May 15, 2020).
Sixth Amendment to Amended and Restated Senior Secured Revolving Credit Agreement, dated as of November 6, 2020, among
Viper Energy Partners LLC, as borrower, Viper Energy Partners LP, as parent guarantor, Wells Fargo Bank, National Association, as
administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 of the Partnership’s Current Report on
Form 8-K (File 001-36505) filed on November 12, 2020).
Credit  Agreement,  dated  May  28,  2019,  by  and  among  Rattler  Midstream  Operating  LLC,  as  borrower,  Rattler  Midstream  LP,  as
parent,  Wells  Fargo  Bank,  National  Association,  as  the  administrative  agent,  and  certain  lenders  from  time  to  time  party  thereto
(incorporated by reference to Exhibit 10.2 to Rattler Midstream LP’s Form 8-K, File No. 001-38919, filed by Rattler Midstream LP
with the SEC on May 29, 2019).
First  Amendment  to  the  Credit  Agreement,  dated  as  of  October  23,  2019,  by  and  among  Rattler  Midstream  Operating  LLC,  as
borrower, Rattler Midstream LP, as parent, Wells Fargo Bank, National Association, as the administrative agent, and certain lenders
from time to time party thereto (incorporated by reference to Exhibit 10.1 of Rattler Midstream LP’s Form 8-K (File 001-38919) filed
on October 28, 2019).
Second Amendment, dated as of November 2, 2020, to the Credit Agreement, dated May 28, 2019, as amended on October 23, 2019,
by  and  among  Rattler  Midstream  Operating  LLC,  as  borrower,  Rattler  Midstream  LP,  as  parent,  Wells  Fargo  Bank,  National
Association, as the administrative agent, and certain lenders from time to time party thereto. (incorporated by reference to Exhibit
10.3 of the Partnership’s Quarterly Report on Form 10-Q (File 001-38919) filed on November 5, 2020).
Energen Corporation Stock Incentive Plan (as amended effective November 7, 2017) (incorporated by reference to Exhibit 10(b) to
Energen’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2017).

Amendment to the Energen Corporation Stock Incentive Plan, dated November 27, 2018 (incorporated by reference to Exhibit 4.7 to
the Registration Statement on Form S-8, File No. 333-228637, filed by the Company with the SEC on November 30, 2018).

Form of Stock Option Agreement under the Energen Corporation Stock Incentive Plan (incorporated by reference to Exhibit 10(r) to
Energen’s Annual Report on Form 10-K for the year ended December 31, 2012).

Form  of  Restricted  Stock  Agreement  under  the  Energen  Corporation  Stock  Incentive  Plan  (incorporated  by  reference  to  Exhibit
10(s) to Energen’s Annual Report on Form 10-K for the year ended December 31, 2012).

Form of Restricted Stock Unit Agreement under the Energen Corporation Stock Incentive Plan (incorporated by reference to Exhibit
10.2 to Energen’s Current Report on Form 8-K filed December 12, 2013).

Subsidiaries of the Registrant.

Consent of Grant Thornton LLP.

Consent of Ryder Scott Company, L.P. with respect to the Diamondback Energy, Inc. reserve report included as Exhibit 99.1.

Consent of Ryder Scott Company, L.P. with respect to the Viper Energy Partners LP reserve report included as Exhibit 99.2.

Certification of Chief Executive Officer of the Registrant pursuant to Rule 13a-14(a) promulgated under the Securities Exchange Act
of 1934, as amended.

Certification of Chief Financial Officer of the Registrant pursuant to Rule 13a-14(a) promulgated under the Securities Exchange Act
of 1934, as amended.

79

Table of Contents

3. Exhibits

Exhibit Number

Description

32.1**

32.2**

99.1*

99.2*

101

104

_______________

Certification  of  Chief  Executive  Officer  of  the  Registrant  pursuant  to  Rule  13a-14(b)  promulgated  under  the  Securities  Exchange
Act of 1934, as amended, and Section 1350 of Chapter 63 of Title 18 of the United States Code.

Certification of Chief Financial Officer of the Registrant pursuant to Rule 13a-14(b) promulgated under the Securities Exchange Act
of 1934, as amended, and Section 1350 of Chapter 63 of Title 18 of the United States Code.

Report of Ryder Scott Company, L.P., dated January 7, 2021, with respect to an estimate of the proved reserves, future production
and income attributable to certain leasehold interests of Diamondback Energy, Inc. as of December 31, 2020.

Report of Ryder Scott Company, L.P., dated January 7, 2021, with respect to an estimate of the proved reserves, future production
and  income  attributable  to  certain  royalty  interests  of  Viper  Energy  Partners  LP,  a  subsidiary  of  Diamondback  Energy,  Inc.,  as  of
December 31, 2020.

The  following  financial  information  from  the  Company’s  Annual  Report  on  Form  10-K  for  the  year  ended  December  31,  2020,
formatted in Inline XBRL: (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Operations, (iii) Consolidated Statement
of  Changes  in  Stockholders’  Equity,  (iv)  Consolidated  Statements  of  Cash  Flows  and  (v)  Notes  to  Consolidated  Financial
Statements.

Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

*

**

+

#

Filed herewith.

The certifications attached as Exhibit 32.1 and Exhibit 32.2 accompany this Annual Report on Form 10-K pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, and shall not be deemed “filed” by the Registrant for purposes of Section 18
of the Securities Exchange Act of 1934, as amended.
Management contract, compensatory plan or arrangement.

The schedules (or similar attachments) referenced in this agreement have been omitted in accordance with Item 601(b)(2) of Regulation S-K. A
copy of any omitted schedule (or similar attachment) will be furnished supplementally to the Securities and Exchange Commission upon request.

ITEM 16. FORM 10-K SUMMARY

None.

80

Table of Contents

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by

the undersigned thereunto duly authorized.

Date:

February 25, 2021

DIAMONDBACK ENERGY, INC.

/s/ Travis D. Stice
Travis D. Stice
Chief Executive Officer
(Principal Executive Officer)

Pursuant to the requirements of the Securities and Exchange Act of 1934, this report has been signed below by the following persons on behalf of

the Registrant and in the capacities and on the dates indicated.

Signature

Title

/s/ Steven E. West
Steven E. West

/s/ Travis D. Stice
Travis D. Stice

/s/ Vincent K. Brooks
Vincent K. Brooks

/s/ Michael P. Cross
Michael P. Cross

/s/ David L. Houston
David L. Houston

/s/ Stephanie K. Mains
Stephanie K. Mains

/s/ Mark L. Plaumann
Mark L. Plaumann

/s/ Melanie M. Trent
Melanie M. Trent

/s/ Kaes Van’t Hof
Kaes Van’t Hof

/s/ Teresa L. Dick
Teresa L. Dick

Chairman of the Board and Director

Chief Executive Officer and Director
(Principal Executive Officer)

Director

Director

Director

Director

Director

Director

Chief Financial Officer and Executive Vice President—Business Development
(Principal Financial Officer)

Chief Accounting Officer, Executive Vice President and Assistant Secretary
(Principal Accounting Officer)

S-1

Date

February 25, 2021

February 25, 2021

February 25, 2021

February 25, 2021

February 25, 2021

February 25, 2021

February 25, 2021

February 25, 2021

February 25, 2021

February 25, 2021

Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Stockholders
Diamondback Energy, Inc.

Opinion on the financial statements

We  have  audited  the  accompanying  consolidated  balance  sheets  of  Diamondback  Energy,  Inc.  (a  Delaware  corporation)  and  subsidiaries
(collectively  the  “Company”)  as  of  December  31,  2020  and  2019,  and  the  related  consolidated  statements  of  operations,  stockholders’  equity,  and  cash
flows for each of the three years in the period ended December 31, 2020, and the related notes (collectively referred to as the “financial statements”). In our
opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2020 and 2019, and the
results of its operations and its cash flows for each of the three years in the period ended December 31, 2020, in conformity with accounting principles
generally accepted in the United States of America.

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States)  (“PCAOB”),  the
Company’s  internal  control  over  financial  reporting  as  of  December  31,  2020,  based  on  criteria  established  in  the  2013  Internal  Control-Integrated
Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  (“COSO”),  and  our  report  dated  February  25,  2021
expressed an unqualified opinion.

Basis for opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s
financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the
Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the
PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether  the  financial  statements  are  free  of  material  misstatement,  whether  due  to  error  or  fraud.  Our  audits  included
performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures
that  respond  to  those  risks.  Such  procedures  included  examining,  on  a  test  basis,  evidence  regarding  the  amounts  and  disclosures  in  the  financial
statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the
overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical audit matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated
or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2)
involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion
on the financial statements taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical
audit matter or on the accounts or disclosures to which it relates.

Estimation of proved reserves as it relates to the calculation and recognition of depletion expense and the evaluation of impairment

As described in Note 2 to the financial statements, the Company accounts for its oil and gas properties using the full cost method of accounting
which  requires  management  to  make  estimates  of  proved  reserve  volumes  and  future  revenues  to  record  depletion  expense  and  measure  its  oil  and  gas
properties  for  potential  impairment.  To  estimate  the  volume  of  proved  reserves  and  future  revenues,  management  makes  significant  estimates  and
assumptions, including forecasting the production decline rate of producing properties and forecasting the timing and volume of production associated with
the  Company’s  development  plan  for  proved  undeveloped  properties.  In  addition,  the  estimation  of  proved  reserves  is  also  impacted  by  management’s
judgments and estimates regarding the financial performance of wells associated with proved reserves to determine if wells are expected, with reasonable
certainty,  to  be  economical  under  the  appropriate  pricing  assumptions  required  in  the  estimation  of  depletion  expense  and  potential  impairment
measurements. We identified the estimation of proved reserves of oil and gas properties, due to its impact on depletion expense and impairment evaluation,
as a critical audit matter.

F-1

Table of Contents

The principal consideration for our determination that the estimation of proved reserves is a critical audit matter is that relatively minor changes in
certain inputs and assumptions, which require a high degree of subjectivity, necessary to estimate the volume and future revenues of the Company’s proved
reserves could have a significant impact on the measurement of depletion expense or impairment expense. In turn, auditing those inputs and assumptions
required subjective and complex auditor judgment.

Our audit procedures related to the estimation of proved reserves included the following, among others.

• We  tested  the  design  and  operating  effectiveness  of  key  controls  relating  to  the  preparation  of  the  ceiling  test  calculation  and  management’s
estimation of proved reserves for the purpose of estimating depletion expense and assessing the Company’s oil and gas properties for potential
impairment.  Specifically,  these  controls  related  to  the  use  of  historical  information  in  the  estimation  of  proved  reserves  derived  from  the
Company’s  accounting  records  and  the  management  review  controls  on  information  provided  to  the  reservoir  engineering  specialists  and  the
management review controls on the final proved reserve report prepared by the Company’s specialists.

• We evaluated the level of knowledge, skill, and ability of the Company’s reservoir engineering specialists and their relationship to the Company,
made  inquiries  of  those  reservoir  engineers  regarding  the  process  followed  and  judgments  made  to  estimate  the  Company’s  proved  reserve
volumes, and read the reserve report prepared by the Company’s specialists.

•

To the extent key, sensitive inputs and assumptions used to determine proved reserve volumes and other cash flow inputs and assumptions are
derived from the Company’s accounting records, such as historical pricing differentials, operating costs, estimated capital costs and working and
net revenue interests, we tested management’s process for determining the assumptions, including examining the underlying support, on a sample
basis. Specifically, our audit procedures involved testing management’s assumptions as follows:

– Compared the estimated pricing differentials used in the reserve report to realized prices related to revenue transactions recorded in the

current year and examined contractual support for the pricing differentials;

–

Evaluated the models used to estimate the operating costs at year-end compared to historical operating costs;

– Compared the models used to determine the future capital expenditures and compared estimated future capital expenditures used in the

reserve report to amounts expended for recently drilled and completed wells with similar locations;

–

–

–

Evaluated the working and net revenue interests used in the reserve report by inspecting a sample of land and division order records;

Evaluated the Company’s evidence supporting the amount of proved undeveloped properties reflected in the reserve report by examining
historical conversion rates and support for the Company’s or the operator’s intent to develop the proved undeveloped properties;

Evaluated  the  estimated  ultimate  recovery  of  proved  undeveloped  properties  to  the  estimated  ultimate  recovery  of  comparable  proved
developed producing properties; and

– Applied analytical procedures to the reserve report by comparing to historical actual results and to the prior year reserve report.

/s/ GRANT THORNTON LLP

We have served as the Company’s auditor since 2009.

Oklahoma City, Oklahoma
February 25, 2021

F-2

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Consolidated Balance Sheets

Assets

Current assets:

Cash and cash equivalents
Restricted cash
Accounts receivable:

Joint interest and other, net
Oil and natural gas sales, net

Inventories
Derivative instruments
Income tax receivable
Prepaid expenses and other current assets

Total current assets

Property and equipment:

Oil and natural gas properties, full cost method of accounting ($7,493 million and $9,207 million excluded from
amortization at December 31, 2020 and December 31, 2019, respectively)
Midstream assets
Other property, equipment and land
Accumulated depletion, depreciation, amortization and impairment

Property and equipment, net

Liabilities and Stockholders’ Equity

Funds held in escrow
Equity method investments
Derivative instruments
Deferred income taxes, net
Investment in real estate, net
Other assets

Total assets

Current liabilities:

Accounts payable - trade
Accrued capital expenditures
Current maturities of long-term debt
Other accrued liabilities
Revenues and royalties payable
Derivative instruments

Total current liabilities

Long-term debt
Derivative instruments
Asset retirement obligations
Deferred income taxes
Other long-term liabilities
Total liabilities

Commitments and contingencies (Note 17)
Stockholders’ equity:

Common stock, $0.01 par value, 200,000,000 shares authorized, 158,088,182 and 159,002,338 issued and outstanding at
December 31, 2020 and December 31, 2019, respectively
Additional paid-in capital
Retained earnings (accumulated deficit)

Total Diamondback Energy, Inc. stockholders’ equity

Non-controlling interest
Total equity

Total liabilities and equity

See accompanying notes to consolidated financial statements.

F-3

December 31,

2020

2019

(In millions, except par value and share
amounts)

$

$

$

$

104  $
4 

56 
281 
33 
1 
100 
23 
602 

27,377 
1,013 
138 
(12,314)
16,214 
51 
533 
— 
73 
101 
45 
17,619  $

71  $
186 
191 
302 
237 
249 
1,236 
5,624 
57 
108 
783 
7 
7,815 

2 
12,656 
(3,864)
8,794 
1,010 
9,804 
17,619  $

123 
5 

186 
429 
37 
46 
19 
24 
869 

25,782 
931 
125 
(5,003)
21,835 
— 
479 
7 
142 
109 
90 
23,531 

179 
475 
— 
304 
278 
27 
1,263 
5,371 
— 
94 
1,886 
11 
8,625 

2 
12,357 
890 
13,249 
1,657 
14,906 
23,531 

 
 
Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Consolidated Statements of Operations

Revenues:

Oil sales
Natural gas sales
Natural gas liquid sales
Midstream services
Other operating income
Total revenues

Costs and expenses:

Lease operating expenses
Production and ad valorem taxes
Gathering and transportation
Midstream services expense
Depreciation, depletion and amortization
Impairment of oil and natural gas properties
General and administrative expenses
Asset retirement obligation accretion
Merger and integration expense
Other operating expense

Total costs and expenses

Income (loss) from operations
Other income (expense):
Interest expense, net
Other income (expense), net
Gain (loss) on derivative instruments, net
Gain (loss) on revaluation of investment
Loss on extinguishment of debt
Income (loss) from equity investments
Total other income (expense), net

Income (loss) before income taxes
Provision for (benefit from) income taxes
Net income (loss)
Net income (loss) attributable to non-controlling interest

Net income (loss) attributable to Diamondback Energy, Inc.

Earnings (loss) per common share:

Basic
Diluted

Weighted average common shares outstanding:

Basic
Diluted

Dividends declared per share

Year Ended December 31,
2020
2018
2019
(In millions, except per share amounts, shares in thousands)

$

$

$
$

$

2,410  $
107 
239 
50 
7 
2,813 

425 
195 
140 
105 
1,304 
6,021 
88 
7 
— 
4 
8,289 
(5,476)

(197)
2 
(81)
(9)
(5)
(10)
(300)
(5,776)
(1,104)
(4,672)
(155)
(4,517) $

(28.59) $
(28.59) $

157,976 
157,976 
1.5250  $

3,554  $
66 
267 
64 
13 
3,964 

490 
248 
88 
91 
1,447 
790 
104 
7 
— 
4 
3,269 
695 

(172)
4 
(108)
5 
(56)
(6)
(333)
362 
47 
315 
75 
240  $

1.47  $
1.47  $

163,493 
163,843 
0.9375  $

1,879 
61 
190 
34 
12 
2,176 

205 
133 
26 
72 
623 
— 
65 
2 
36 
3 
1,165 
1,011 

(87)
89 
101 
(1)
— 
— 
102 
1,113 
168 
945 
99 
846 

8.09 
8.06 

104,622 
104,929 
0.50 

See accompanying notes to consolidated financial statements.

F-4

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Consolidated Statement of Stockholders’ Equity

Balance at December 31, 2017

Impact of adoption of ASU 2016-01, net of tax
Net proceeds from issuance of common units - Viper Energy
Partners LP
Unit-based compensation
Stock-based compensation
Common shares issued for business combination
Stock options assumed in business combination
Restricted stock units assumed in business combination
Repurchased shares for tax withholding
Distribution to non-controlling interest
Common shares issued for Ajax
Dividend paid
Exercise of stock options and vesting of restricted stock units
Change in ownership of consolidated subsidiaries, net
Net income

Balance December 31, 2018

Net proceeds from issuance of common units - Viper Energy
Partners LP
Net proceeds from issuance of common units - Rattler Midstream
LP
Unit-based compensation
Common units issued for acquisition
Stock-based compensation
Repurchased shares for tax withholding
Repurchased shares under buyback program
Distribution to non-controlling interest
Dividend paid
Exercise of stock and unit options and awards of restricted stock
Change in ownership of consolidated subsidiaries, net
Net income

Balance at December 31, 2019

Unit-based compensation
Distribution equivalent rights payments
Stock-based compensation
Repurchased shares for tax withholding
Repurchased shares under buyback program
Repurchased units under buyback programs
Distribution to non-controlling interest
Dividend paid
Exercise of stock options and vesting of restricted stock units
Change in ownership of consolidated subsidiaries, net
Net income (loss)

Balance at December 31, 2020

Common Stock

Shares

Amount

98,167  $
— 

1  $
— 

Retained
Earnings
(Accumulated
Deficit)

Additional
Paid-in
Capital
($ in millions, shares in thousands)
(38) $
(9)

5,291  $
— 

— 
— 
— 
63,126 
— 
— 
(140)
— 
2,584 
— 
536 
— 
— 
164,273 

— 

— 
— 
— 
— 
(125)
(6,385)
— 
— 
1,239 
— 
— 
159,002 
— 
— 
— 
(75)
(1,280)
— 
— 
— 
441 
— 
— 
158,088  $

— 
— 
— 
1 
— 
— 
— 
— 
— 
— 
— 
— 
— 
2 

— 

— 
— 
— 
— 
— 
— 
— 
— 
— 
— 
— 
2 
— 
— 
— 
— 
— 
— 
— 
— 
— 
— 
— 
2  $

— 
— 
34 
7,069 
14 
52 
(14)
— 
340 
— 
— 
150 
— 
12,936 

— 

— 
— 
— 
57 
(13)
(598)
— 
— 
8 
(33)
— 
12,357 
— 
— 
43 
(5)
(98)
— 
— 
— 
1 
358 
— 
12,656  $

— 
— 
— 
— 
— 
— 
— 
— 
— 
(37)
— 
— 
846 
762 

— 

— 
— 
— 
— 
— 
— 
— 
(112)
— 
— 
240 
890 
— 
(1)
— 
— 
— 
— 
— 
(236)
— 
— 
(4,517)
(3,864) $

Non-
Controlling
Interest

Total

327  $
(7)

303 
3 
— 
— 
— 
— 
— 
(98)
— 
— 
— 
(160)
99 
467 

341 

720 
7 
124 
— 
— 
— 
(122)
— 
— 
45 
75 
1,657 
10 
(2)
— 
(2)
— 
(39)
(93)
— 
— 
(366)
(155)
1,010  $

5,581 
(16)

303 
3 
34 
7,070 
14 
52 
(14)
(98)
340 
(37)
— 
(10)
945 
14,167 

341 

720 
7 
124 
57 
(13)
(598)
(122)
(112)
8 
12 
315 
14,906 
10 
(3)
43 
(7)
(98)
(39)
(93)
(236)
1 
(8)
(4,672)
9,804 

See accompanying notes to consolidated financial statements.

F-5

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Consolidated Statements of Cash Flows

Cash flows from operating activities:

Net income (loss)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:

$

(4,672) $

315  $

2020

Year Ended December 31,
2019
(In millions)

2018

Provision for (benefit from) deferred income taxes
Impairment of oil and natural gas properties
Depreciation, depletion and amortization
Loss on early extinguishment of debt
(Gain) loss on derivative instruments, net
Cash received (paid) on settlement of derivative instruments
Equity-based compensation expense
Other

Changes in operating assets and liabilities:

Accounts receivable
Income tax receivable
Prepaid expenses and other
Accounts payable and accrued liabilities
Revenues and royalties payable
Other

Net cash provided by (used in) operating activities
Cash flows from investing activities:

Drilling, completions and non-operated additions to oil and natural gas properties
Infrastructure additions to oil and natural gas properties
Additions to midstream assets
Acquisitions of leasehold interests
Acquisitions of mineral interests
Funds held in escrow
Proceeds from sale of assets
Investment in real estate
Contributions to equity method investments
Other

Net cash provided by (used in) investing activities
Cash flows from financing activities:

Proceeds from borrowings under credit facilities
Repayments under credit facilities
Repayment on Energen's credit facility
Proceeds from senior notes
Repayment of senior notes
Proceeds from joint venture
Premium on extinguishment of debt
Debt issuance costs
Public offering costs
Proceeds from public offerings
Repurchased shares under buyback program
Repurchased units under buyback program
Dividends to stockholders
Distributions to non-controlling interest
Other

Net cash provided by (used in) financing activities
Net increase (decrease) in cash and cash equivalents
Cash, cash equivalents and restricted cash at beginning of period

Cash, cash equivalents and restricted cash at end of period

$

(1,042)
6,021 
1,304 
5 
81 
250 
37 
37 

217 
(62)
2 
(20)
(41)
1 
2,118 

(1,611)
(108)
(140)
(119)
(66)
(51)
63 
— 
(102)
33 
(2,101)

1,130 
(1,478)
— 
997 
(239)
40 
(2)
(11)
— 
— 
(98)
(39)
(236)
(93)
(8)
(37)
(20)
128 
108  $

47 
790 
1,447 
56 
108 
80 
48 
15 

(187)
— 
29 
(129)
135 
(15)
2,739 

(2,557)
(120)
(244)
(443)
(333)
— 
300 
(1)
(485)
(5)
(3,888)

2,350 
(3,718)
— 
3,469 
(1,250)
39 
(44)
(18)
(41)
1,106 
(593)
— 
(112)
(122)
(4)
1,062 
(87)
215 
128  $

945 

168 
— 
623 
— 
(101)
(121)
27 
18 

13 
— 
25 
(7)
12 
(37)
1,565 

(1,359)
(102)
(204)
(1,371)
(440)
11 
80 
(111)
— 
(7)
(3,503)

2,652 
(1,242)
(559)
1,062 
— 
— 
— 
(25)
(3)
305 
— 
— 
(37)
(98)
(14)
2,041 
103 
112 
215 

See accompanying notes to consolidated financial statements.

F-6

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Consolidated Statements of Cash Flows - Continued

Supplemental disclosure of cash flow information:

Interest paid, net of capitalized interest

Supplemental disclosure of non-cash transactions:

Accrued capital expenditures
Common stock issued for Ajax
Common stock issued for business combination
Asset retirement obligations acquired

(1)

2020

Year Ended December 31,
2019
(In millions)

2018

$

$
$
$
$

235  $

213  $
—  $
—  $
2  $

237  $

553  $
—  $
—  $
4  $

114 

437 
340 
7,136 
111 

(1)

Includes $7 billion of common stock issued for business combination, $14 million for stock options assumed and $52 million for restricted stock units assumed.

See accompanying notes to consolidated financial statements.

F-7

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements

1.    DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION

Organization and Description of the Business

Diamondback  Energy,  Inc.  (“Diamondback”  or  the  “Company”)  is  an  independent  oil  and  gas  company  currently  focused  on  the  acquisition,

development, exploration and exploitation of unconventional, onshore oil and natural gas reserves in the Permian Basin in West Texas.

The  wholly-owned  subsidiaries  of  Diamondback,  as  of  December  31,  2020,  include  Diamondback  E&P  LLC,  a  Delaware  limited  liability
company, Diamondback O&G LLC, a Delaware limited liability company, Viper Energy Partners GP LLC, a Delaware limited liability company (“Viper’s
General Partner”), Rattler Midstream GP LLC, a Delaware limited liability company (“Rattler’s General Partner”), and Energen Corporation, an Alabama
corporation (“Energen”). The consolidated subsidiaries include these wholly owned subsidiaries as well as Viper Energy Partners LP, a Delaware limited
partnership (“Viper”), Viper’s subsidiary Viper Energy Partners LLC, a Delaware limited liability company (“Viper LLC”), Rattler Midstream LP (formerly
known  as  Rattler  Midstream  Partners  LP),  a  Delaware  limited  partnership  (“Rattler”),  Rattler  Midstream  Operating  LLC  (formerly  known  as  Rattler
Midstream  LLC),  a  Delaware  limited  liability  company  (“Rattler  LLC”),  Rattler  LLC’s  wholly  owned  subsidiaries  Tall  City  Towers  LLC,  a  Delaware
limited  liability  company  (“Tall  City”),  Rattler  Ajax  Processing  LLC,  a  Delaware  limited  liability  company,  Rattler  OMOG  LLC,  a  Delaware  limited
liability company, Energen’s wholly owned subsidiaries Energen Resources Corporation, an Alabama corporation (“Energen Resources”), EGN Services,
Inc., an Alabama corporation and Bohemia Merger Sub Inc., a Delaware corporation.

Basis of Presentation

The consolidated financial statements include the accounts of the Company and its subsidiaries after all significant intercompany balances and

transactions have been eliminated upon consolidation.

Viper and Rattler are consolidated in the financial statements of the Company. As of December 31, 2020, the Company owned approximately 58%
of  Viper’s  total  units  outstanding.  The  Company’s  wholly  owned  subsidiary,  Viper  Energy  Partners  GP  LLC,  is  the  general  partner  of  Viper.  As  of
December  31,  2020,  the  Company  owned  approximately  72%  of  Rattler’s  total  units  outstanding.  The  Company’s  wholly  owned  subsidiary,  Rattler
Midstream GP LLC, is the general partner of Rattler. The results of operations attributable to the non-controlling interest in Viper and Rattler are presented
within equity and net income and are shown separately from the Company’s equity and net income attributable to the Company.

The  Company  reports  its  operations  in  two  operating  segments:  (i)  the  upstream  segment,  which  is  engaged  in  the  acquisition,  development,
exploration and exploitation of unconventional, onshore oil and natural gas reserves primarily in the Permian Basin in West Texas and (ii) the midstream
operations segment, which includes midstream services and real estate operations.

Reclassifications

Certain prior period amounts have been reclassified to conform to the current period financial statement presentation. These reclassifications had

an immaterial effect on the previously reported total assets, total liabilities, stockholders’ equity, results of operations or cash flows.

2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Use of Estimates

Certain  amounts  included  in  or  affecting  the  Company’s  consolidated  financial  statements  and  related  disclosures  must  be  estimated  by
management, requiring certain assumptions to be made with respect to values or conditions that cannot be known with certainty at the time the consolidated
financial statements are prepared. These estimates and assumptions affect the amounts the Company reports for assets and liabilities and the Company’s
disclosure of contingent assets and liabilities at the date of the consolidated financial statements. Actual results could differ from those estimates.

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Making  accurate  estimates  and  assumptions  is  particularly  difficult  as  the  oil  and  natural  gas  industry  experiences  challenges  resulting  from
negative pricing pressure from the effects of COVID-19 and actions by OPEC members and other exporting nations on the supply and demand in global oil
and natural gas markets. Companies in the oil and natural gas industry have changed near term business plans in response to changing market conditions.
The  aforementioned  circumstances  generally  increase  the  uncertainty  in  the  Company’s  accounting  estimates,  particularly  those  involving  financial
forecasts.

The  Company  evaluates  these  estimates  on  an  ongoing  basis,  using  historical  experience,  consultation  with  experts  and  other  methods  the
Company  considers  reasonable  in  the  particular  circumstances.  Nevertheless,  actual  results  may  differ  significantly  from  the  Company’s  estimates.  Any
effects on the Company’s business, financial position or results of operations resulting from revisions to these estimates are recorded in the period in which
the  facts  that  give  rise  to  the  revision  become  known.  Significant  items  subject  to  such  estimates  and  assumptions  include  estimates  of  proved  oil  and
natural  gas  reserves  and  related  present  value  estimates  of  future  net  cash  flows  therefrom,  the  carrying  value  of  oil  and  natural  gas  properties,  asset
retirement obligations, the fair value determination of acquired assets and liabilities assumed, equity-based compensation, fair value estimates of derivative
instruments and estimates of income taxes.
Cash and Cash Equivalents

The  Company  considers  all  highly  liquid  investments  purchased  with  a  maturity  of  three  months  or  less  and  money  market  funds  to  be  cash
equivalents. The Company maintains cash and cash equivalents in bank deposit accounts which, at times, may exceed the federally insured limits. The
Company has not experienced any significant losses from such investments.

Accounts Receivable

Accounts receivable consist of receivables from joint interest owners on properties the Company operates and from sales of oil and natural gas
production  delivered  to  purchasers.  The  purchasers  remit  payment  for  production  directly  to  the  Company.  Most  payments  for  production  are  received
within three months after the production date.

The Company adopted Accounting Standards Update (“ASU”) 2016-13 and the subsequent applicable modifications

to the rule on January 1, 2020. Accounts receivable are stated at amounts due from joint interest owners or purchasers, net of an allowance for expected
losses  as  estimated  by  the  Company  when  collection  is  doubtful.  For  receivables  from  joint  interest  owners,  the  Company  typically  has  the  ability  to
withhold future revenue disbursements to recover any non-payment of joint interest billings. Accounts receivable from joint interest owners or purchasers
outstanding  longer  than  the  contractual  payment  terms  are  considered  past  due.  The  Company  determines  its  allowance  for  each  type  of  receivable  by
considering a number of factors, including the length of time accounts receivable are past due, the Company’s previous loss history, the debtor’s current
ability to pay its obligation to the Company, the condition of the general economy and the industry as a whole. The Company writes off specific accounts
receivable when they become uncollectible, and payments subsequently received on such receivables are credited to the allowance for expected losses. At
December 31, 2020 and 2019, the Company recorded immaterial allowances for credit losses related to joint interest receivables and credit losses related to
sales of oil and natural gas production.

Derivative Instruments

The Company is required to recognize its derivative instruments on the consolidated balance sheets as assets or liabilities at fair value with such
amounts classified as current or long-term based on their anticipated settlement dates. The accounting for the changes in fair value of a derivative depends
on  the  intended  use  of  the  derivative  and  resulting  designation.  The  Company  has  not  designated  its  derivative  instruments  as  hedges  for  accounting
purposes and, as a result, marks its derivative instruments to fair value and recognizes the cash and non-cash change in fair value on derivative instruments
for each period in the consolidated statements of operations. For additional information regarding the Company’s derivative instruments, see Note 15—
Derivatives.

Oil and Natural Gas Properties

The Company uses the full cost method of accounting for its oil and natural gas properties. Under this method, all acquisition, exploration and
development costs, including certain internal costs, are capitalized and amortized on a composite unit of production method based on proved oil, natural
gas liquids and natural gas reserves. Internal costs capitalized to the

F-9

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

full  cost  pool  represent  management’s  estimate  of  costs  incurred  directly  related  to  exploration  and  development  activities  such  as  geological  and  other
administrative  costs  associated  with  overseeing  the  exploration  and  development  activities.  Costs,  including  related  employee  costs,  associated  with
production  and  operation  of  the  properties  are  charged  to  expense  as  incurred.  All  other  internal  costs  not  directly  associated  with  exploration  and
development activities are charged to expense as they are incurred. Sales of oil and natural gas properties, whether or not being amortized currently, are
accounted  for  as  adjustments  of  capitalized  costs,  with  no  gain  or  loss  recognized,  unless  such  adjustments  would  significantly  alter  the  relationship
between capitalized costs and proved reserves of oil, natural gas liquids and natural gas. Any income from services provided by subsidiaries to working
interest owners of properties in which the Company also owns an interest, to the extent they exceed related costs incurred, are accounted for as reductions
of capitalized costs of oil and natural gas properties proportionate to the Company’s investment in the subsidiary. Depletion of evaluated oil and natural gas
properties  is  computed  on  the  units  of  production  method,  whereby  capitalized  costs  plus  estimated  future  development  costs  are  amortized  over  total
proved reserves. The average depletion rate per barrel equivalent unit of production was $11.30, $13.54 and $12.62 for the years ended December 31, 2020,
2019  and  2018,  respectively.  Depletion  expense  for  oil  and  natural  gas  properties  was  $1.2  billion,  $1.4  billion  and  $595  million  for  the  years  ended
December 31, 2020, 2019 and 2018, respectively.

Under this method of accounting, the Company is required to perform a ceiling test each quarter. The test determines a limit, or ceiling, on the
book value of the proved oil and natural gas properties. Net capitalized costs are limited to the lower of unamortized cost net of deferred income taxes, or
the  cost  center  ceiling.  The  cost  center  ceiling  is  defined  as  the  sum  of  (a)  estimated  future  net  revenues,  discounted  at  10%  per  annum,  from  proved
reserves, based on the trailing 12-month unweighted average of the first-day-of-the-month price, adjusted for any contract provisions, and excluding the
estimated abandonment costs for properties with asset retirement obligations recorded on the balance sheet, (b) the cost of properties not being amortized, if
any, and (c) the lower of cost or market value of unproved properties included in the cost being amortized, including related deferred taxes for differences
between  the  book  and  tax  basis  of  the  oil  and  natural  gas  properties.  If  the  net  book  value,  including  related  deferred  taxes,  exceeds  the  ceiling,  an
impairment or non-cash write-down is required. For additional information regarding the Company’s impairments on proved oil and natural gas properties,
see Note 8—Property and Equipment.

Costs associated with unevaluated properties are excluded from the full cost pool until the Company has made a determination as to the existence
of proved reserves. The Company assesses all items classified as unevaluated property on at least an annual basis for possible impairment. The Company
assesses properties on an individual basis or as a group if properties are individually insignificant. The assessment includes consideration of the following
factors, among others: intent to drill; remaining lease term; geological and geophysical evaluations; drilling results and activity; the assignment of proved
reserves; and the economic viability of development if proved reserves are assigned. During any period in which these factors indicate an impairment, the
cumulative drilling costs incurred to date for such property and all or a portion of the associated leasehold costs are transferred to the full cost pool and are
then subject to amortization.

Real Estate Assets

Real estate assets are stated at cost, less accumulated depreciation and amortization. The Company considers the period of future benefit of each
respective asset to determine the appropriate useful life and depreciation and amortization is calculated using the straight-line method over the assigned
useful life.

Upon  acquisition  of  real  estate  properties,  the  purchase  price  is  allocated  to  tangible  assets,  consisting  of  land  and  building,  and  to  identified
intangible assets and liabilities, which may include the value of above market and below market leases and the value of in-place leases. The allocation of
the  purchase  price  is  based  upon  the  fair  value  of  each  component  of  the  property.  Although  independent  appraisals  may  be  used  to  assist  in  the
determination of fair value, in many cases these values will be based upon management’s assessment of each property, the selling prices of comparable
properties and the discounted value of cash flows from the asset. For additional information regarding the Company’s real estate assets, see Note 7—Real
Estate Assets.

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Other Property, Equipment and Land

Other property, equipment and land is recorded at cost. The Company expenses maintenance and repairs in the period incurred. Upon retirements
or disposition of assets, the cost and related accumulated depreciation are removed from the consolidated balance sheet with the resulting gains or losses, if
any,  reflected  in  operations.  Depreciation  of  other  property  and  equipment  is  computed  using  the  straight-line  method  over  their  estimated  useful  lives,
which range from three to 15 years.

Asset Retirement Obligations

The Company measures the future cost to retire its tangible long-lived assets and recognizes such cost as a liability for legal obligations associated

with the retirement of long-lived assets that result from the acquisition, construction or normal operation of a long-lived asset.

Asset retirement obligations represent the future abandonment costs of tangible assets, namely wells. The fair value of a liability for an asset’s
retirement  obligation  is  recorded  in  the  period  in  which  it  is  incurred  if  a  reasonable  estimate  of  fair  value  can  be  made,  and  the  corresponding  cost  is
capitalized as part of the carrying amount of the related long-lived asset. The liability is accreted to its then present value each period, and the capitalized
cost is depreciated over the useful life of the related asset. If the liability is settled for an amount other than the recorded amount or if there is a change in
the estimated liability, the difference is recorded in oil and natural gas properties.

The  initial  measurement  of  asset  retirement  obligations  at  fair  value  is  calculated  using  discounted  cash  flow  techniques  and  based  on  internal
estimates  of  future  retirement  costs  associated  with  the  future  plugging  and  abandonment  of  wells  and  related  facilities.  For  additional  information
regarding the Company’s asset retirement obligations, see Note 9—Asset Retirement Obligations.

Impairment of Long-Lived Assets

Other property and equipment used in operations and midstream assets are reviewed whenever events or circumstances indicate that the carrying
amount of an asset may not be recoverable. An impairment loss is recognized only if the carrying amount of a long-lived asset is not recoverable from its
estimated future undiscounted cash flows. An impairment loss is the difference between the carrying amount and fair value of the asset. The Company had
no significant impairment losses for the years ended December 31, 2020, 2019 and 2018.

Capitalized Interest

The Company capitalizes interest on expenditures made in connection with exploration and development projects that are not subject to current
amortization. Interest is capitalized only for the period that activities are in progress to bring these unevaluated properties to their intended use. Capitalized
interest cannot exceed gross interest expense. See Note 11—Debt for further details.

Inventories

Inventories are stated at the lower of cost or market and consist of tubular goods and equipment at December 31, 2020 and 2019. The Company’s

tubular goods and equipment are primarily comprised of oil and natural gas drilling or repair items such as tubing, casing and pumping units.

Debt Issuance Costs

Long-term debt includes capitalized costs related to the senior notes, net of accumulated amortization. The costs associated with the senior notes
are netted against the senior notes balances and are amortized over the term of the senior notes using the effective interest method. See Note 11—Debt for
further details. The costs associated with the Company’s credit facilities are included in other assets on the consolidated balance sheet and are amortized
over the term of the facility.

F-11

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Other Accrued Liabilities

Other accrued liabilities consist of the following:

Lease operating expenses payable
Ad valorem taxes payable
Interest payable
Derivative liability payable
Midstream operating expenses payable
Liability for drilling costs prepaid by joint interest partners
Other

Total other accrued liabilities

Revenue and Royalties Payable

December 31,

2020

2019

(In millions)
115  $
57 
37 
30 
18 
5 
40 
302  $

119 
68 
27 
3 
22 
12 
53 
304 

$

$

For certain oil and natural gas properties, where the Company serves as operator, the Company receives production proceeds from the purchaser
and further distributes such amounts to other revenue and royalty owners. Production proceeds that the Company has not yet distributed to other revenue
and royalty owners are reflected as revenue and royalties payable in the accompanying consolidated balance sheets. The Company recognizes revenue for
only its net revenue interest in oil and natural gas properties.

Non-controlling Interests

Non-controlling interests in the accompanying consolidated financial statements represent minority interest ownership in Viper and Rattler and are
presented as a component of equity. When the Company’s relative ownership interests in Viper and Rattler change, adjustments to non-controlling interest
and additional paid-in-capital, tax effected, will occur. Because these changes in the ownership interests in Viper and Rattler do not result in a change of
control, the transactions are accounted for as equity transactions under ASC Topic 810, “Consolidation”, which requires that any differences between the
carrying value of the Company’s basis in Viper and Rattler and the fair value of the consideration received are recognized directly in equity and attributed
to  the  controlling  interest.  See  Note  12—Capital  Stock  and  Earnings  Per  Share  for  a  discussion  of  changes  of  the  Company’s  ownership  interest  in
consolidated subsidiaries during the year ended December 31, 2020.

Revenue Recognition

Revenue from Contracts with Customers

Sales of oil, natural gas and natural gas liquids are recognized at the point control of the product is transferred to the customer. Virtually all of the
pricing provisions in the Company’s contracts are tied to a market index, with certain adjustments based on, among other factors, whether a well delivers to
a gathering or transmission line, the quality of the oil or natural gas and the prevailing supply and demand conditions. As a result, the price of the oil,
natural gas and natural gas liquids fluctuates to remain competitive with other available oil, natural gas and natural gas liquids supplies.

Oil sales

The Company’s oil sales contracts are generally structured where it delivers oil to the purchaser at a contractually agreed-upon delivery point at
which the purchaser takes custody, title and risk of loss of the product. Under this arrangement, the Company or a third party transports the product to the
delivery point and receives a specified index price from the purchaser with no deduction. In this scenario, the Company recognizes revenue when control
transfers  to  the  purchaser  at  the  delivery  point  based  on  the  price  received  from  the  purchaser.  Oil  revenues  are  recorded  net  of  any  third-party
transportation fees and other applicable differentials in the Company’s consolidated statements of operations.

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Natural gas and natural gas liquids sales

Under the Company’s natural gas processing contracts, it delivers natural gas to a midstream processing entity at the wellhead, battery facilities or
the inlet of the midstream processing entity’s system. The midstream processing entity gathers and processes the natural gas and remits proceeds to the
Company for the resulting sales of natural gas liquids and residue gas. In these scenarios, the Company evaluates whether it is the principal or the agent in
the  transaction.  For  those  contracts  where  the  Company  has  concluded  it  is  the  principal  and  the  ultimate  third  party  is  its  customer,  the  Company
recognizes revenue on a gross basis, with transportation, gathering, processing, treating and compression fees presented as an expense in its consolidated
statements of operations.

In certain natural gas processing agreements, the Company may elect to take its residue gas and/or natural gas liquids in-kind at the tailgate of the
midstream entity’s processing plant and subsequently market the product. Through the marketing process, the Company delivers product to the ultimate
third-party purchaser at a contractually agreed-upon delivery point and receives a specified index price from the purchaser. In this scenario, the Company
recognizes  revenue  when  control  transfers  to  the  purchaser  at  the  delivery  point  based  on  the  index  price  received  from  the  purchaser.  The  gathering,
processing, treating and compression fees attributable to the gas processing contract, as well as any transportation fees incurred to deliver the product to the
purchaser, are presented as transportation, gathering, processing, treating and compression expense in its consolidated statements of operations.

Midstream Revenue

Substantially  all  revenues  from  gathering,  compression,  water  handling,  disposal  and  treatment  operations  are  derived  from  intersegment
transactions for services Rattler provides to exploration and production operations. The portion of such fees shown in the Company’s consolidated financial
statements represent amounts charged to interest owners in the Company’s operated wells, as well as fees charged to other third parties for water handling
and  treatment  services  provided  by  Rattler  or  usage  of  Rattler’s  gathering  and  compression  systems.  For  gathering  and  compression  revenue,  Rattler
satisfies its performance obligations and recognizes revenue when low pressure volumes are delivered to a specified delivery point. Revenue is recognized
based on the per MMbtu gathering fee or a per barrel gathering fee charged by Rattler in accordance with the gathering and compression agreement. For
water handling and treatment revenue, Rattler satisfies its performance obligations and recognizes revenue when the water volumes have been delivered to
the  fracwater  meter  for  a  specified  well  pad  and  the  wastewater  volumes  have  been  metered  downstream  of  the  Company’s  facilities.  For  services
contracted  through  third  party  providers,  Rattler’s  performance  obligation  is  satisfied  when  the  service  performed  by  the  third  party  provider  has  been
completed. Revenue is recognized based on the per barrel water delivery or a wastewater gathering and disposal fee charged by Rattler in accordance with
the water services agreement.

Transaction price allocated to remaining performance obligations

The Company’s upstream product sales contracts do not originate until production occurs and, therefore, are not considered to exist beyond each

days’ production. Therefore, there are no remaining performance obligations under any of our product sales contracts.

Under  its  revenue  agreements,  each  delivery  generally  represents  a  separate  performance  obligation;  therefore,  future  volumes  delivered  are

wholly unsatisfied and disclosure of the transaction price allocated to remaining performance obligations is not required.

Contract balances

Under the Company’s product sales contracts, it has the right to invoice its customers once the performance obligations have been satisfied, at

which point payment is unconditional. Accordingly, the Company’s product sales contracts do not give rise to contract assets or liabilities.

Prior-period performance obligations

The Company records revenue in the month production is delivered to the purchaser. However, purchaser and settlement statements for natural gas
and  natural  gas  liquids  sales  may  not  be  received  for  30  to  90  days  after  the  date  production  is  delivered,  and  as  a  result,  the  Company  is  required  to
estimate  the  amount  of  production  delivered  to  the  purchaser  and  the  price  that  will  be  received  for  the  sale  of  the  product.  The  Company  records  the
differences between its

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

estimates and the actual amounts received for product sales in the month that payment is received from the purchaser. The Company has existing internal
controls for its revenue estimation process and related accruals, and any identified differences between its revenue estimates and actual revenue received
historically  have  not  been  significant.  For  the  years  ended  December  31,  2020,  2019  and  2018  revenue  recognized  in  the  reporting  period  related  to
performance obligations satisfied in prior reporting periods was not material. The Company believes that the pricing provisions of its oil, natural gas and
natural gas liquids contracts are customary in the industry. To the extent actual volumes and prices of oil and natural gas sales are unavailable for a given
reporting  period  because  of  timing  or  information  not  received  from  third  parties,  the  revenue  related  to  expected  sales  volumes  and  prices  for  those
properties are estimated and recorded.

Investments

An investment of less than 50% in an investee over which the Company exercises significant influence but does not have control is accounted for
using the equity method. Additionally, an investment of greater than 50% in an investee over which the Company does not exercise significant influence or
have control is also accounted for using the equity method. Under the equity method, the Company’s share of the investee’s earnings or loss is recognized
in the consolidated statement of operations.

Judgment  regarding  the  level  of  influence  over  each  equity  method  investment  includes  considering  key  factors  such  as  ownership  interest,
representation  on  the  board  of  directors,  participation  in  policy-making  decisions,  material  intercompany  transactions  and  extent  of  ownership  by  an
investor  in  relation  to  the  concentration  of  other  shareholdings.  Additionally,  an  investment  in  a  limited  liability  company  that  maintains  a  specific
ownership  account  for  each  investor  shall  be  viewed  as  similar  to  an  investment  in  a  limited  partnership  for  purposes  of  determining  whether  a
noncontrolling investment shall be accounted for using the cost method or the equity method. The Company has determined it has the ability to exercise
significant influence over its investments which constitute less than a 20% ownership interest, and does not have the ability to exercise significant influence
over its investments which constitute greater than a 50% ownership interest, and therefore accounts for all of its investments under the equity method.

The  Company  reviews  its  investments  to  determine  if  a  loss  in  value  which  is  other  than  a  temporary  decline  has  occurred.  If  such  loss  has
occurred, the Company would recognize an impairment provision. There were no material impairments for the Company’s equity investments for the years
ended December 31, 2020, 2019 and 2018. For additional information on the Company’s investments, see Note 10—Equity Method Investments.

Accounting for Equity-Based Compensation

The Company has granted various types of stock-based awards including stock options and restricted stock units. Viper and Rattler have granted
various  unit-based  awards  including  unit  options  and  phantom  units  to  employees,  officers  and  directors  of  Viper’s  General  Partner,  Rattler’s  General
Partner and the Company who perform services for the respective entities. These plans and related accounting policies for material awards are defined and
described  more  fully  in  Note  13—Equity-Based  Compensation.  Equity  compensation  awards  are  measured  at  fair  value  on  the  date  of  grant  and  are
expensed over the required service period. Forfeitures for these awards are recognized as they occur.

Environmental Compliance and Remediation

Environmental  compliance  and  remediation  costs,  including  ongoing  maintenance  and  monitoring,  are  expensed  as  incurred.  Liabilities  are

accrued when environmental assessments and remediation are probable, and the costs can be reasonably estimated.

Income Taxes

The Company uses the asset and liability method of accounting for income taxes, under which deferred tax assets and liabilities are recognized for
the future tax consequences of (i) temporary differences between the financial statement carrying amounts and the tax bases of existing assets and liabilities
and (ii) operating loss and tax credit carryforwards. Deferred income tax assets and liabilities are based on enacted tax rates applicable to the future period
when  those  temporary  differences  are  expected  to  be  recovered  or  settled.  The  effect  of  a  change  in  tax  rates  on  deferred  tax  assets  and  liabilities  is
recognized in income in the period the rate change is enacted. A valuation allowance is provided for deferred tax assets when it is more likely than not the
deferred tax assets will not be realized. For additional information regarding income taxes, see Note 14—Income Taxes.

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Recent Accounting Pronouncements

Recently Adopted Pronouncements

In  June  2016,  the  Financial  Accounting  Standards  Board  (FASB)  issued  ASU  2016-13,  “Financial  Instruments  -  Credit  Losses”.  This  update
affects entities holding financial assets and net investment in leases that are not accounted for at fair value through net income. The amendments affect
loans, debt securities, trade receivables, net investments in leases, off-balance sheet credit exposures, reinsurance receivables, and any other financial assets
not excluded from the scope that have the contractual right to receive cash. The Company adopted this update effective January 1, 2020. The adoption of
this update did not have a material impact on the Company’s financial position, results of operations or liquidity since it does not have a history of credit
losses.

Accounting Pronouncements Not Yet Adopted

In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740) Simplifying the Accounting for Income Taxes", This update is
intended to simplify the accounting for income taxes by removing certain exceptions and by clarifying and amending existing guidance. This update is
effective for public business entities beginning after December 15, 2020 with early adoption permitted. The Company does not believe that the adoption of
this update will have an impact on its financial position, results of operations or liquidity.

The Company considers the applicability and impact of all ASUs. ASUs not listed above were assessed and determined to be either not applicable

or clarifications of ASUs previously disclosed.

3.    REVENUE FROM CONTRACTS WITH CUSTOMERS

Disaggregation of Revenue

The following tables present the Company’s revenue from contracts with customers disaggregated by product type and basin:

Oil sales
Natural gas sales
Natural gas liquid sales

Total

Oil sales
Natural gas sales
Natural gas liquid sales

Total

Midland Basin

Delaware Basin

Other

Total

Year Ended December 31, 2020

1,393  $
56 
138 
1,587  $

(in millions)

1,011  $
50 
100 
1,161  $

6  $
1 
1 
8  $

Midland Basin

Delaware Basin

Other

Total

Year Ended December 31, 2019

2,139  $
32 
154 
2,325  $

(in millions)

1,351  $
33 
110 
1,494  $

64  $
1 
3 
68  $

$

$

$

$

2,410 
107 
239 
2,756 

3,554 
66 
267 
3,887 

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Oil sales
Natural gas sales
Natural gas liquid sales

Total

Customers

Midland Basin

Delaware Basin

Other

Total

Year Ended December 31, 2018

$

$

1,350  $
38 
140 
1,528  $

(in millions)
508  $
22 
47 
577  $

21  $
1 
3 
25  $

1,879 
61 
190 
2,130 

The  Company  is  subject  to  risk  resulting  from  the  concentration  of  its  crude  oil  and  natural  gas  sales  and  receivables  with  several  significant
purchasers. For the year ended December 31, 2020, four purchasers each accounted for more than 10% of our revenue: Vitol Inc. (“Vitol”) (26%); Shell
Trading (USA) Company (“Shell”) (22%); Plains Marketing LP (“Plains”) (20%); and Trafigura Trading LLC (11%). For the year ended December 31,
2019,  three  purchasers  each  accounted  for  more  than  10%  of  the  Company’s  revenue:  Shell  (27%);  Plains  (23%);  and  Vitol  (15%).  For  the  year  ended
December 31, 2018, three purchasers each accounted for more than 10% of the Company’s revenue: Shell (26%); Koch Supply & Trading LP (15%); and
Occidental Energy Marketing Inc. (11%). The Company does not require collateral and does not believe the loss of any single purchaser would materially
impact its operating results, as crude oil and natural gas are fungible products with well-established markets and numerous purchasers.

4.    ACQUISITIONS AND DIVESTITURES

2020 Activity

Viper’s Acquisition of Certain Mineral and Royalty Interests

During  the  year  ended  December  31,  2020,  Viper  acquired,  from  unrelated  third-party  sellers,  mineral  and  royalty  interests  representing  4,948
gross (417 net royalty) acres in the Permian Basin for an aggregate purchase price of approximately $64 million, subject to post-closing adjustments. Viper
funded these acquisitions with cash on hand and borrowings under Viper LLC’s revolving credit facility.

Pending Acquisitions

    See Note 18—Subsequent Events for acquisition agreements entered into in 2020 that are expected to close in 2021.

2019 Activity

Divestiture of Certain Conventional and Non-Core Assets Acquired from Energen

On  May  23,  2019,  the  Company  completed  its  divestiture  of  6,589  net  acres  of  certain  conventional  and  non-core  Permian  assets,  which  were
acquired by the Company in its merger with Energen (as described below), for an aggregate sale price of $37 million. This divestiture did not result in a
gain or loss because it did not have a significant effect on the Company’s reserve base or depreciation, depletion and amortization rate.

On July 1, 2019, the Company completed its divestiture of 103,750 net acres of certain conventional and non-core Permian assets, which were
acquired by the Company in the merger with Energen (as described below), for an aggregate sale price of $285 million. This divestiture did not result in a
gain or loss because it did not have a significant effect on the Company’s reserve base or depreciation, depletion and amortization rate.

2019 Drop-Down Transaction

On  July  29,  2019,  the  Company  entered  into  a  definitive  purchase  agreement  to  divest  certain  mineral  and  royalty  interests  to  Viper  for
approximately  18  million  of  Viper’s  newly-issued  Class  B  units,  approximately  18  million  newly-issued  units  of  Viper  LLC  with  a  fair  value  of  $497
million  and  $190  million  in  cash,  after  giving  effect  to  closing  adjustments  for  net  title  benefits  (the  “Drop-Down”).  The  mineral  and  royalty  interests
divested in the Drop-Down represent approximately

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

5,490 net royalty acres across the Midland and Delaware Basins, of which over 95% are operated by the Company, and have an average net royalty interest
of approximately 3.2% (the “Drop-Down Assets”). The Drop-Down closed on October 1, 2019 and was effective as of July 1, 2019. Viper funded the cash
portion of the purchase price of the Drop-Down Assets through a combination of cash on hand and borrowings under Viper LLC’s revolving credit facility.

2018 Activity

Tall City Towers LLC

On  January  31,  2018,  Tall  City,  a  subsidiary  of  the  Company,  completed  its  acquisition  of  the  Fasken  Center  office  buildings  in  Midland,  TX

where the Company’s corporate offices are located for a net purchase price of $110 million.

Ajax Resources, LLC

On October 31, 2018, the Company completed its acquisition of leasehold interests and related assets of Ajax Resources, LLC, which included
approximately 25,493 net leasehold acres in the Northern Midland Basin, for $900 million in cash and approximately 2.6 million shares of the Company’s
common  stock  (the  “Ajax  acquisition”).  This  transaction  was  effective  as  of  July  1,  2018.  The  cash  portion  of  this  transaction  was  funded  through  a
combination of cash on hand, proceeds from the sale of mineral interests to Viper (described below under the caption “2018 Drop-Down Transaction”),
borrowing under the Company’s revolving credit facility and a portion of the proceeds from the Company’s September 2018 senior note offering. See Note
11—Debt for information relating to this offering.

2018 Drop-down Transaction

On  August  15,  2018,  the  Company  completed  a  transaction  to  sell  Viper  mineral  interests  underlying  32,424  gross  (1,696  net  royalty)  acres

primarily in Pecos County, Texas, in the Permian Basin, approximately 80% of which are operated by the Company, for $175 million.

ExL Petroleum Management, LLC and EnergyQuest II LLC

On October 31, 2018, the Company completed its acquisitions of leasehold interests and related assets, one with ExL Petroleum Management,
LLC and ExL Petroleum Operating, Inc. and one with EnergyQuest II LLC, for an aggregate of approximately 3,646 net leasehold acres in the Northern
Midland Basin for a total of $313 million in cash. These transactions were effective as of August 1, 2018 and were funded through a combination of cash
on hand, proceeds from the sale of assets to Viper and borrowing under the Company’s revolving credit facility.

Energen Corporation Merger

On November 29, 2018, the Company completed its acquisition of Energen in an all-stock transaction (the “Merger”), which was accounted for as
a business combination. Upon completion of the Merger, the addition of Energen’s assets increased the Company’s assets to: (i) over 273,000 net Tier One
acres in the Permian Basin, (ii) approximately 7,200 estimated total net horizontal Permian locations, and (iii) approximately 394,000 net acres across the
Midland  and  Delaware  Basins.  Under  the  terms  of  the  Merger,  each  share  of  Energen  common  stock  was  converted  into  0.6442  of  a  share  of  the
Company’s  common  stock.  The  Company  issued  approximately  62.8  million  shares  of  its  common  stock  valued  at  a  price  of  $112.00  per  share  on  the
closing date, resulting in total consideration paid by the Company to the former Energen shareholders of approximately $7.1 billion.

In connection with the closing of the Merger, the Company repaid outstanding principal under Energen’s revolving credit facility and assumed all

of Energen’s long-term debt. See Note 11—Debt for additional information.

Purchase Price Allocation

The Merger has been accounted for as a business combination, using the acquisition method. The following table represents the allocation of the
total purchase price of Energen to the identifiable assets acquired and the liabilities assumed based on the fair values at the acquisition date resulting in no
goodwill or bargain purchase gain.

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

The following table sets forth the Company’s purchase price allocation:

Consideration:

Fair value of the Company's common stock issued

Total consideration

Fair value of liabilities assumed:

Current liabilities
Asset retirement obligation
Long-term debt
Noncurrent derivative instruments
Deferred income taxes
Other long-term liabilities

Amount attributable to liabilities assumed

Fair value of assets acquired:
Total current assets
Oil and natural gas properties
Midstream assets
Investment in real estate
Other property, equipment and land
Asset retirement obligation
Other postretirement assets
Noncurrent income tax receivable, net
Other long term assets

Amount attributable to assets acquired

(In millions)

7,136 
7,136 

388 
105 
1,099 
17 
1,425 
7 
3,041 

298 
9,361 
253 
11 
58 
105 
3 
76 
12 
10,177 

$
$

$

$

$

$

The Company has included revenues of $102 million and direct operating expenses of $17 million in its consolidated statements of operations for

the period from December 1, 2018 to December 31, 2018 due to the acquisition.

Pro Forma Financial Information

The following unaudited summary pro forma consolidated statement of operations data of Diamondback for the years ended December 31, 2018
and 2017 have been prepared to give effect to the Merger as if it had occurred on January 1, 2017. The below information reflects pro forma adjustments
for the issuance of the Company’s common stock in exchange for Energen’s outstanding shares of common stock, as well as pro forma adjustments based
on available information and certain assumptions that the Company believes are reasonable, including (i) the Company’s common stock issued to convert
Energen’s outstanding shares of common stock and equity awards as of the closing date of the Merger, (ii) the depletion of Energen’s fair-valued proved oil
and natural gas properties and (iii) the estimated tax impacts of the pro forma adjustments.

Additionally, pro forma earnings were adjusted to exclude acquisition-related costs incurred by the Company of approximately $37 million for the
year ended December 31, 2018 and acquisition-related costs incurred by Energen of $59 million. The pro forma results of operations do not include any
cost savings or other synergies that may result from the Merger or any estimated costs that have been or will be incurred by the Company to integrate the
Energen assets. The pro forma financial data does not include the results of operations for any other acquisitions made during the periods presented, as they
were primarily acreage acquisitions and their results were not deemed material.

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

The pro forma consolidated statement of operations data has been included for comparative purposes only and is not necessarily indicative of the

results that might have occurred had the Merger taken place on January 1, 2017 and is not intended to be a projection of future results.

Revenues
Income from operations
Net income
Basic earnings per common share
Diluted earnings per common share

5.    VIPER ENERGY PARTNERS LP

Year Ended December 31,

2018

2017

(in millions, except per share amounts)

$
$
$
$
$

3,532  $
1,559  $
1,320  $
7.54  $
7.53  $

2,196 
900 
875 
5.26 
5.24 

Viper  is  a  publicly  traded  Delaware  limited  partnership,  the  common  units  of  which  are  listed  on  the  Nasdaq  Global  Select  Market  under  the
symbol “VNOM”. Viper was formed by Diamondback to, among other things, own, acquire and exploit oil and natural gas properties in the Permian Basin
in North America.

During the years ended December 31, 2020, 2019, and 2018, Diamondback received distributions of $62 million, $133 million and $155 million,

respectively, in respect of its interests in Viper and Viper LLC.

Viper completed the following equity offerings during the years ended December 31, 2019 and 2018:

Date

Number of Units of
Common Units Sold

Number of Units of Common
Units Issued to Underwriters

Proceeds Received by
Viper

Amount Repaid on
Viper LLC’s Credit
Facility

10,080,000 
10,925,000 

1,080,000  $
1,425,000  $

(in millions)
303  $
341  $

362 
314 

July 2018
March 2019

There were no equity offerings during the year ended December 31, 2020.

The  Company’s  ownership  percentage  in  Viper  is  reflected  as  a  non-controlling  interest  in  the  consolidated  financial  statements  of  Viper.  The
Company’s  ownership  percentage  in  Viper  changes  as  a  result  of  Viper’s  public  offerings,  issuance  of  units  for  acquisitions,  issuance  of  unit-based
compensation,  repurchases  of  common  units  and  distribution  equivalent  rights  paid  on  its  units.  These  changes  in  ownership  percentage  and  the
disproportionate allocation of net income to the Company under Viper’s partnership agreement for a set period of time following Viper’s tax status change
result in the difference between the Company’s share of the underlying net book value in Viper before and after the respective Partnership common unit
transactions. See Note 12—Capital Stock and Earnings Per Share for further details.

Recapitalization, Tax Status Election and Related Transactions by Viper

In March 2018, the Board of Directors of Viper’s General Partner unanimously approved a change of Viper’s federal income tax status from that
of a pass-through partnership to that of a taxable entity via a “check the box” election. In connection with making this election, on May 9, 2018 Viper (i)
amended and restated its First Amended and Restated Partnership Agreement, (ii) amended and restated the First Amended and Restated Limited Liability
Company Agreement of the Operating Company, (iii) amended and restated its existing registration rights agreement with the Company and (iv) entered
into  an  exchange  agreement  with  the  Company,  the  General  Partner  and  the  Operating  Company.  Simultaneously  with  the  effectiveness  of  these
agreements, the Company delivered and assigned to Viper 73,150,000 common units the Company owned in exchange for (i) 73,150,000 of Viper’s newly-
issued  Class  B  units  and  (ii)  73,150,000  newly-issued  units  of  the  Operating  Company  pursuant  to  the  terms  of  a  Recapitalization  Agreement  dated
March  28,  2018,  as  amended  as  of  May  9,  2018  (the  “Recapitalization  Agreement”).  Immediately  following  that  exchange,  Viper  continued  to  be  the
managing member of the Operating Company, with sole control of its operations. The Operating Company units and Viper’s Class B units owned by the
Company are exchangeable from time to time for Viper’s common units (that is, one Operating Company unit and one Partnership Class B unit, together,
will be exchangeable for one Partnership common unit).

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

On May 10, 2018, in connection with the change in Viper’s income tax status becoming effective, the Company, among other things, exchanged
731,500 Class B units and 731,500 units in the Operating Company for 731,500 common units of Viper. After the effectiveness of the tax status election
and the completion of related transactions, Viper’s minerals business continues to be conducted through the Operating Company, which continues to be
taxed as a partnership for federal and state income tax purposes. The Company is party to a partnership agreement and tax sharing agreement with Viper
which  govern  the  reimbursement  of  various  expenses  and  state,  local  and  other  taxes,  respectively.  No  significant  transactions  occurred  under  these
agreements during the years ended December 31, 2020, 2019 and 2018.

Implementation of Viper’s Common Unit Repurchase Program

On  November  6,  2020,  the  board  of  directors  of  Viper’s  general  partner  approved  an  expansion  of  Viper’s  return  of  capital  program  with  the
implementation of a common unit repurchase program to acquire up to $100 million of Viper’s outstanding common units through December 31, 2021.
During  the  year  ended  December  31,  2020,  Viper  repurchased  approximately  $24  million  of  its  common  units  under  its  repurchase  program.  As
of December 31, 2020, $76 million remained available for use to repurchase Viper’s common units under its common unit repurchase program.

Viper LLC’s Revolving Credit Facility

Viper has entered into a secured revolving credit facility with Wells Fargo Bank, National Association, (“Wells Fargo”) as administrative agent

sole book runner and lead arranger. See Note 11—Debt for a description of this credit facility.

6.    RATTLER MIDSTREAM LP

Rattler is a publicly traded Delaware limited partnership, the common units of which are listed on the Nasdaq Global Select Market under the
symbol “RTLR”. Rattler was formed by Diamondback in July 2018 to own, operate, develop and acquire midstream infrastructure assets in the Midland
and Delaware Basins of the Permian Basin. Rattler Midstream GP LLC (“Rattler’s General Partner”), a wholly owned subsidiary of Diamondback, serves
as the general partner of Rattler. As of December 31, 2020, Diamondback owned approximately 72% of Rattler’s total units outstanding.

Prior to the completion of Rattler’s initial public offering (the “Rattler Offering”) in May of 2019, Diamondback owned all of the general and
limited  partner  interests  in  Rattler.  The  Rattler  Offering  consisted  of  43,700,000  common  units  representing  approximately  29%  of  the  limited  partner
interests in Rattler at a price to the public of $17.50 per common unit. Rattler received net proceeds of approximately $720 million from the sale of these
common units, after deducting offering expenses and underwriting discounts and commissions.

In  connection  with  the  completion  of  the  Rattler  Offering,  Rattler  (i)  issued  107,815,152  Class  B  Units  representing  an  aggregate  71%  voting
limited  partner  interest  in  Rattler  in  exchange  for  a  $1  million  cash  contribution  from  Diamondback,  (ii)  issued  a  general  partner  interest  in  Rattler  to
Rattler’s General Partner, in exchange for a $1 million cash contribution from Rattler’s General Partner and (iii) caused Rattler LLC to make a distribution
of approximately $727 million to Diamondback.

The Company is party to a partnership agreement, services and secondment agreement and tax sharing agreement with Rattler which govern the
reimbursement of various expenses and state, local and other taxes, respectively. No significant transactions occurred under these agreements during the
years ended December 31, 2020, 2019 and 2018.

Implementation of Rattler’s Common Unit Repurchase Program

On  October  29,  2020,  the  board  of  directors  of  Rattler’s  general  partner  approved  a  common  unit  repurchase  program  to  acquire  up  to  $100
million of Rattler’s outstanding common units through December 31, 2021. During the year ended December 31, 2020, Rattler repurchased approximately
$15 million of its common units under its repurchase program. As of December 31, 2020, $85 million remained available for use to repurchase common
units under Rattler’s common unit repurchase program.

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Rattler LLC’s Revolving Credit Facility

Rattler LLC has entered into a secured revolving credit facility with Wells Fargo, as administrative agent, sole book runner and lead arranger. See

Note 11—Debt for a description of this credit facility.

7.    REAL ESTATE ASSETS    

In conjunction with Diamondback’s acquisition of the Fasken Center, the Company allocated the $110 million purchase price between real estate
assets  and  an  insignificant  amount  of  intangible  lease  assets  related  to  in-place  and  above-market  leases.  The  following  schedules  present  the  cost  and
related accumulated depreciation or amortization (as applicable) of Diamondback’s real estate assets:

Buildings
Tenant improvements
Land
Land improvements

Total real estate assets
Less: accumulated depreciation

Total investment in land and buildings, net

8.    PROPERTY AND EQUIPMENT

Property and equipment includes the following:

Oil and natural gas properties:

Subject to depletion
Not subject to depletion
Gross oil and natural gas properties

Accumulated depletion
Accumulated impairment
Oil and natural gas properties, net

Midstream assets
Other property, equipment and land
Accumulated depreciation

Total property and equipment, net

Balance of costs not subject to depletion:

Incurred in 2020
Incurred in 2019
Incurred in 2018
Incurred in 2017
Incurred in 2016

Total not subject to depletion

Estimated Useful
Lives
(Years)
20-30
15
N/A
15

December 31,

2020

2019

(in millions)
102  $
5 
2 
1 
110 
(13)
97  $

102 
5 
2 
1 
110 
(9)
101 

December 31,

2020

2019

(in millions)

16,575 
9,207 
25,782 
(2,995)
(1,934)
20,853 
931 
125 
(74)
21,835 

19,884  $
7,493 
27,377 
(4,237)
(7,954)
15,186 
1,013 
138 
(123)
16,214  $

71 
421 
5,090 
1,682 
229 
7,493 

$

$

$

$

$

$

F-21

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Capitalized internal costs were approximately $53 million, $49 million and $29 million for the years ended December 31, 2020, 2019 and 2018,
respectively.  Costs  associated  with  unevaluated  properties  are  excluded  from  the  full  cost  pool  until  the  Company  has  made  a  determination  as  to  the
existence of proved reserves. The inclusion of the Company’s unevaluated costs into the amortization base is expected to be completed within five years.

As  a  result  of  the  decline  in  commodity  prices  during  2020,  the  Company  recorded  a  non-cash  ceiling  test  impairment  for  the  year  ended
December  31,  2020  of  $6.0  billion  which  is  included  in  accumulated  depletion,  depreciation,  amortization  and  impairment  on  the  consolidated  balance
sheet.  The  impairment  charge  affected  the  Company’s  reported  net  income  but  did  not  reduce  its  cash  flow.  In  addition  to  commodity  prices,  the
Company’s production rates, levels of proved reserves, future development costs, transfers of unevaluated properties and other factors will determine its
actual  ceiling  test  calculation  and  impairment  analysis  in  future  periods.  If  the  trailing  12-month  commodity  prices  continue  to  fall  as  compared  to  the
commodity  prices  used  in  prior  quarters,  the  Company  may  have  material  write  downs  in  subsequent  quarters.  The  Company  also  recorded  a  non-cash
ceiling test impairment on proved oil and natural gas properties of $790 million for the year ended December 31, 2019. No such impairment was recorded
for the year ended December 31, 2018. Given the rate of change impacting the oil and natural gas industry described above, it is possible that circumstances
requiring additional impairment testing will occur in future interim periods, which could result in potentially material impairment charges being recorded.

At  December  31,  2020,  there  were  $85  million  in  exploration  costs  and  development  costs  and  $51  million  in  capitalized  interest  that  are  not
subject to depletion. At December 31, 2019, there were $228 million in exploration costs and development costs and $118 million capitalized interest that
are not subject to depletion.

9.    ASSET RETIREMENT OBLIGATIONS

The following table describes the changes to the Company’s asset retirement obligations liability for the following periods:

Asset retirement obligations, beginning of period
Additional liabilities incurred
Liabilities acquired
Liabilities settled and divested
Accretion expense
Revisions in estimated liabilities
Asset retirement obligations, end of period
(1)
Less: current portion

Asset retirement obligations - long-term

Year Ended December 31,
2019
2020

(in millions)
94  $
13 
2 
(8)
7 
1 
109 
1 
108  $

136 
8 
4 
(61)
7 
— 
94 
— 
94 

$

$

(1) The current portion of the asset retirement obligation is included in other accrued liabilities in the Company’s consolidated balance sheets.

The Company’s asset retirement obligations primarily relate to the future plugging and abandonment of wells and related facilities. The Company
estimates the future plugging and abandonment costs of wells, the ultimate productive life of the properties, a risk-adjusted discount rate and an inflation
factor in order to determine the current present value of this obligation. To the extent future revisions to these assumptions impact the present value of the
existing asset retirement obligation liability, a corresponding adjustment is made to the oil and natural gas property balance.

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

10.    EQUITY METHOD INVESTMENTS

At December 31, 2020 and 2019, Rattler had the following investments:

Ownership Interest

December 31, 2020

December 31, 2019

EPIC Crude Holdings, LP
Gray Oak Pipeline, LLC
Wink to Webster Pipeline LLC
OMOG JV LLC
Amarillo Rattler, LLC

Total

10 % $
10 %
4 %
60 %
50 %

$

(in millions)
121  $
130 
83 
194 
5 
533  $

The following summarizes the income (loss) of equity method investees for the periods presented:

EPIC Crude Holdings, LP
Gray Oak Pipeline, LLC
Wink to Webster Pipeline LLC
OMOG JV LLC

Total

Year Ended December 31,
2019
2020

$

$

(in millions)
(9) $
10 
(2)
(9)
(10) $

110 
115 
34 
219 
1 
479 

(6)
1 
(1)
— 
(6)

On February 1, 2019, Rattler LLC acquired a 10% equity interest in EPIC Crude Holdings, LP (“EPIC”), which owns and operates a pipeline (the
“EPIC pipeline”) that transports crude oil and natural gas liquids across Texas for delivery into the Corpus Christi market. The EPIC pipeline became fully
operational in April 2020.

On February 15, 2019, Rattler LLC acquired a 10% equity interest in Gray Oak Pipeline, LLC (“Gray Oak”), which owns and operates a pipeline
(the  “Gray  Oak  pipeline”)  that  transports  crude  oil  from  the  Permian  to  Corpus  Christi  on  the  Texas  Gulf  Coast.  The  Gray  Oak  pipeline  became  fully
operational in April 2020.

On March 29, 2019, Rattler LLC executed a short-term promissory note to Gray Oak. The note allowed for borrowing by Gray Oak of up to $123
million at a 2.52% interest rate with a maturity date of March 31, 2022. The short-term promissory note was repaid on May 31, 2019 and was terminated in
the third quarter of 2020.

On  July  30,  2019,  Rattler  LLC  joined  Wink  to  Webster  Pipeline  LLC  as  a  4%  member,  together  with  affiliates  of  ExxonMobil,  Plains  All
American Pipeline, Delek US, MPLX LP and Lotus Midstream. The joint venture is developing a crude oil pipeline with origin points at Wink and Midland
in  the  Permian  Basin  and  delivery  points  at  multiple  Houston  area  locations  (the  “Wink  to  Webster  pipeline”).  The  Wink  to  Webster  pipeline’s  main
segment began interim service operation in the fourth quarter of 2020, and the joint venture is expected to begin full commercial operations in the fourth
quarter of 2021. Upon completion, this pipeline will be capable of transporting approximately 1,500,000 Bbl/d.

On October 1, 2019, Rattler LLC acquired a 60% equity interest in OMOG JV LLC (“OMOG”). On November 7, 2019, OMOG acquired 100% of
Reliance Gathering, LLC which owns and operates a crude oil gathering system in the Permian and was renamed as Oryx Midland Oil Gathering LLC
following the acquisition. While Rattler’s equity interest is 60%, the investment is accounted for as an equity method investment as Rattler does not control
operating activities and substantive participating rights exist with the controlling minority investor.

On December 20, 2019, Rattler LLC acquired a 50% equity interest in Amarillo Rattler LLC, which currently owns and operates the Yellow Rose
gas gathering and processing system with estimated total processing capacity of 40,000 Mcf/d and over 84 miles of gathering and regional transportation
pipelines in Dawson, Martin and Andrews Counties, Texas. This joint venture also intends to construct and operate a new 60,000 Mcf/d cryogenic natural
gas processing plant in Martin

F-23

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

County, Texas, as well as incremental gas gathering and compression and regional transportation pipelines. However, development of the new processing
plant has been postponed pending a recovery in commodity prices and activity levels. The Company has contracted for up to 30,000 Mcf/d of the capacity
of  the  new  processing  plant  pursuant  to  a  gas  gathering  and  processing  agreement  entered  into  with  the  joint  venture  in  exchange  for  the  Company’s
dedication  of  certain  leasehold  interests  to  that  agreement.  While  Rattler’s  equity  interest  is  50%,  the  investment  is  accounted  for  as  an  equity  method
investment as Rattler does not control operating activities and substantive participating rights exist with the controlling investor.

Rattler  reviews  its  investments  to  determine  if  a  loss  in  value  which  is  other  than  temporary  has  occurred.  If  such  a  loss  has  occurred,  Rattler
recognizes an impairment provision. No significant impairments were recorded for Rattler’s equity method investments for the year ended December 31,
2020,  2019  or  2018.  Rattler’s  investees  all  serve  customers  in  the  oil  and  natural  gas  industry,  which  has  been  experiencing  economic  challenges  as
described  above.  It  is  possible  that  prolonged  industry  challenges  could  result  in  circumstances  requiring  impairment  testing,  which  could  result  in
potentially material impairment charges in future interim periods.

11.    DEBT

The Company’s debt consisted of the following as of the dates indicated:

December 31,

2020

2019

4.625% Notes due 2021
7.320% Medium-term Notes, Series A, due 2022
2.875% Senior Notes due 2024
4.750% Senior Notes due 2025
5.375% Senior Notes due 2025
3.250% Senior Notes due 2026
7.350% Medium-term Notes, Series A, due 2027
7.125% Medium-term Notes, Series B, due 2028
3.500% Senior Notes due 2029
DrillCo Agreement
Unamortized debt issuance costs
Unamortized discount costs
Unamortized premium costs
Revolving credit facility
Viper revolving credit facility
Viper 5.375% Senior Notes due 2027
Rattler revolving credit facility
Rattler 5.625% Senior Notes due 2025

(1)

(2)

(1)

Total debt, net

Less: current maturities of long-term debt

Total long-term debt

(1) Each of these revolving credit facilities matures on November 1, 2022.
(2) The Rattler revolving credit facility matures on May 28, 2024.

F-24

$

$

(in millions)
191  $
20 
1,000 
500 
800 
800 
— 
100 
1,200 
79 
(29)
(27)
15 
23 
84 
480 
79 
500 
5,815 
(191)
5,624  $

399 
21 
1,000 
— 
800 
800 
11 
108 
1,200 
39 
(19)
(31)
9 
13 
97 
500 
424 
— 
5,371 
— 
5,371 

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Debt maturities as of December 31, 2020, excluding debt issuance costs, premiums and discounts, are as follows:

Year Ending December 31,

2021
2022
2023
2024
2025
Thereafter

Total

Diamondback Notes

May 2020 Notes Offering

Total
(in millions)

191 
127 
— 
1,079 
1,800 
2,659 
5,856 

$

$

On May 26, 2020, the Company completed a notes offering of $500 million in aggregate principal amount of its 4.750% Senior Notes due 2025
(the “May 2020 Notes”). Interest on the May 2020 Notes accrues from May 26, 2020, and is payable in cash semi-annually on May 31 and November 30 of
each  year,  beginning  November  30,  2020.  The  May  2020  Notes  mature  on  May  31,  2025.  The  Company  received  net  proceeds  of  approximately  $496
million  from  the  offering  of  the  May  2020  Notes.  The  May  2020  Notes  are  the  Company’s  senior  unsecured  obligations  and  are  guaranteed  by
Diamondback O&G LLC (the “Guarantor”), but are not guaranteed by any of the Company’s other subsidiaries. The May 2020 Notes are senior in right or
payment to any of the Company’s and the Guarantor’s future subordinated indebtedness and rank equal in right of payment with all of the Company’s and
the Guarantor’s existing and future senior indebtedness. The May 2020 Notes are effectively subordinated to the Company’s and the Guarantor’s existing
and future secured indebtedness, if any, to the extent of the value of the collateral securing such indebtedness, and structurally subordinated to all of the
existing and future indebtedness and other liabilities of the Company’s subsidiaries other than the Guarantor.

4.750% Senior Notes

On October 28, 2016, the Company issued $500 million in aggregate principal amount of 4.750% senior notes due 2024 (“4.750% senior notes”),
under an indenture among the Company, the subsidiary guarantors party thereto and Wells Fargo, as the trustee. On September 25, 2018, the Company
issued  $750  million  aggregate  principal  amount  of  new  4.750%  senior  notes  as  additional  notes  under,  and  subject  to  the  terms  of,  the  same  indenture
governing the 4.750% senior notes.

On December 20, 2019, the Company redeemed all of the outstanding 4.750% senior notes, which included $1.25 billion of aggregate outstanding
principal at a redemption price of 103.563% plus accrued and unpaid interest on the outstanding principal amount to the Redemption Date, resulting in a
loss on extinguishment of debt of $56 million. On December 5, 2019, the indenture governing the 4.750% senior notes was fully satisfied and discharged
and the guarantors were released from their guarantees of the 4.750% senior notes. The Company funded the redemption with a portion of the net proceeds
from the issuance of the December 2019 Notes.

2025 Senior Notes

On December 20, 2016, the Company issued $500 million in aggregate principal amount of 5.375% senior notes due 2025, under an indenture
among us, the subsidiary guarantors party thereto and Wells Fargo, as the trustee (the “2025 indenture”). On January 29, 2018, the Company issued an
additional  $300  million  aggregate  principal  amount  of  new  5.375%  senior  notes  due  2025  as  additional  notes  under  the  2025  indenture  and  received
approximately $308 million in net proceeds, after deducting discounts and offering expenses, but disregarding accrued interest. The Company used these
net proceeds to repay a portion of the outstanding borrowings under its revolving credit facility. Collectively, the aggregate $800 million principal amount
of 5.375% senior notes due in 2025 are referred to as the 2025 senior notes.

All of the 2025 senior notes will mature on May 31, 2025 and the 5.375% per annum interest is payable semi-annually, in arrears on May 31 and

November 30 each year. Currently, the 2025 senior notes are not guaranteed by any of the

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Company’s  subsidiaries  other  than  its  restricted  subsidiary,  Diamondback  O&G  LLC,  and  will  not  be  guaranteed  by  any  of  the  Company’s  future
unrestricted subsidiaries. These notes may be guaranteed by future restricted subsidiaries.

The  Company  may  on  any  one  or  more  occasions  redeem  some  or  all  of  the  2025  senior  notes  at  any  time  on  or  after  May  31,  2020  at  the
redemption prices (expressed as percentages of principal amount) of 104.031% for the 12-month period beginning on May 31, 2020, 102.688% for the 12-
month period beginning on May 31, 2021, 101.344% for the 12-month period beginning on May 31, 2022 and 100.000% beginning on May 31, 2023 and
at any time thereafter with any accrued and unpaid interest to, but not including, the date of redemption.

December 2019 Notes Offering

On December 5, 2019, the Company issued $1.0 billion in aggregate principal amount of 2.875% senior notes due 2024 (the “2024 notes”), $800
million in aggregate principal amount of 3.250% senior notes due 2026 (the “2026 notes”), and $1.2 billion aggregate principal amount of 3.500% senior
notes  due  2029,  (the  “2029  notes”  and,  together  with  the  2024  notes  and  the  2026  notes,  the  “December  2019  Notes”).  The  2024  notes  will  mature  on
December 1, 2024, the 2026 notes will mature on December 1, 2026 and the 2029 notes will mature on December 1, 2029. Interest will accrue and be
payable  semi-annually,  in  arrears  on  June  1  and  December  1  of  each  year,  commencing  on  June  1,  2020.  The  December  2019  Notes  are  fully  and
unconditionally guaranteed by Diamondback O&G LLC and are not guaranteed by any of the Company’s other subsidiaries.

The December 2019 Notes were issued under an indenture, dated as of December 5, 2019, among the Company and Wells Fargo, as the trustee, as

supplemented by the first supplemental indenture dated as of December 5, 2019 (the “December 2019 Notes Indenture”).

The Company may redeem (i) the 2024 Notes in whole or in part at any time prior to November 1, 2024 (one month prior to the maturity date of
the 2024 Notes), (ii) the 2026 Notes in whole or in part at any time prior to October 1, 2026 (two months prior to the maturity date of the 2026 Notes) and
(iii) the 2029 Notes in whole or in part at any time prior to September 1, 2029 (three months prior to the maturity date of the 2029 Notes) (each such date, a
“par call date”), in each case at the redemption price set forth in the indenture governing the December 2019 Notes. If any of the December 2019 Notes are
redeemed on or after their respective par call dates, in each case, they will be redeemed at a redemption price equal to 100% of the principal amount plus
interest accrued thereon up to but not including the redemption date.

Upon the occurrence of a Change of Control Triggering Event (as defined in the indenture governing the December 2019 Notes), holders may
require the Company to purchase some or all of their December 2019 Notes for cash at a price equal to 101% of the principal amount of the December
2019 Notes being purchased, plus accrued and unpaid interest, if any, to the date of purchase.

The indenture governing the December 2019 Notes contains customary terms and covenants, including limitations on the Company’s ability and
the  ability  of  certain  of  its  subsidiaries  to  incur  liens  securing  funded  indebtedness  and  on  the  Company’s  ability  to  consolidate,  merge  or  sell,  convey,
transfer or lease all or substantially all of its assets.

Second Amended and Restated Credit Facility

The  Company  and  Diamondback  O&G  LLC,  as  borrower,  entered  into  the  second  amended  and  restated  credit  agreement,  dated  November  1,
2013, as amended, with a syndicate of banks, including Wells Fargo, as administrative agent, and its affiliate Wells Fargo Securities, LLC, as sole book
runner and lead arranger. On June 28, 2019, the credit agreement was amended pursuant to an eleventh amendment, which implemented certain changes to
the credit facility for the period on and after the date on which our unsecured debt achieves an investment grade rating from two rating agencies and certain
other conditions in the credit agreement are satisfied (the “investment grade changeover date”). On November 20, 2019, Diamondback O&G LLC caused
Diamondback  O&G  LLC  to  deliver  a  notice  as  borrower  under  the  revolving  credit  facility  to  trigger  the  “investment  grade  changeover  date.”  As  of
December  31,  2020,  the  maximum  credit  amount  available  under  the  credit  agreement  is  $2.0  billion.  As  of  December  31,  2020,  the  Company  had
approximately  $23  million  of  outstanding  borrowings  under  its  revolving  credit  facility  and  $1.98  billion  available  for  future  borrowings  under  the
revolving credit facility. As of December 31, 2020, there was an aggregate of $3 million in letters of credit outstanding under the credit agreement, which
reduce available borrowings on a dollar for dollar basis.

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Diamondback  O&G  LLC  is  the  borrower  under  the  credit  agreement  and,  as  of  December  31,  2020,  the  credit  agreement  is  guaranteed  by

Diamondback Energy, Inc. None of the Company’s other subsidiaries are guarantors under the revolving credit facility.

The  outstanding  borrowings  under  the  credit  agreement  bear  interest  at  a  per  annum  rate  elected  by  us  that  is  equal  to  the  alternate  base  rate
(which is equal to the greatest of the prime rate, the Federal Funds effective rate plus 0.5%, and 3 month LIBOR plus 1.0%) or LIBOR, in each case plus
the applicable margin. The applicable margin with range from 0.125% to 1.0% per annum and from 1.125% to 2.0% per annum in the case of LIBOR, in
each case, depending on the pricing level, which in turn depends on the rating agencies’ rating of our unsecured debt. We are obligated to pay a quarterly
commitment fee ranging from 0.125% to 0.350% per year on the unused portion of the commitment, based on the pricing level, which in turn depends on
the rating agencies’ rating of our unsecured debt. The weighted average interest rates on the credit facility were 2.02%, 4.10% and 3.75% for the years
ended December 31, 2020, 2019 and 2018, respectively.

Loan principal may be optionally repaid from time to time without premium or penalty (other than customary LIBOR breakage). Loan principal is
required  to  be  repaid  (a)  to  the  extent  the  loan  amount  exceeds  the  commitment  due  to  any  termination  or  reduction  of  the  aggregate  maximum  credit
amount and (b) at the maturity date of November 1, 2022.

The credit agreement contains a financial covenant that requires us to maintain a Total Net Debt to Capitalization Ratio (as defined in the credit
agreement) of no more than 65%. Our non-guarantor restricted subsidiaries may incur debt for borrowed money in an aggregate principal amount up to
15% of consolidated net tangible assets (as defined in the credit agreement) and we and our restricted subsidiaries may incur liens if the aggregate amount
of debt secured by such liens does not exceed 15% of consolidated net tangible assets.

As of December 31, 2020 and 2019, the Company was in compliance with all financial maintenance covenants under the revolving credit facility,
as then in effect. The lenders may accelerate all of the indebtedness under the revolving credit facility upon the occurrence and during the continuance of
any  event  of  default.  The  credit  agreement  contains  customary  events  of  default,  including  non-payment,  breach  of  covenants,  materially  incorrect
representations,  cross-default,  bankruptcy  and  change  of  control.  There  are  no  cure  periods  for  events  of  default  due  to  non-payment  of  principal  and
breaches  of  negative  and  financial  covenants,  but  non-payment  of  interest  and  breaches  of  certain  affirmative  covenants  are  subject  to  customary  cure
periods.

Energen Notes

At the effective time of the Merger, Energen became the Company’s wholly owned subsidiary and remained the issuer of an aggregate principal
amount of $530 million in notes (the “Energen Notes”), issued under an indenture dated September 1, 1996 with The Bank of New York as Trustee (the
“Energen Indenture”). As of December 31, 2020, the aggregate principal amount of the Energen Notes had been reduced to $311 million, consisting of: (1)
$191 million aggregate principal amount of 4.625% senior notes due on September 1, 2021, (2) $100 million of 7.125% notes due on February 15, 2028
and (3) $20 million of 7.32% notes due on July 28, 2022.

The  Company  used  the  net  proceeds  from  the  offering  of  May  2020  Notes,  among  other  things,  to  make  an  equity  contribution  to  Energen  to

purchase $209 million in previously outstanding aggregate principal amount of Energen’s 4.625% senior notes pursuant to a tender offer.

During the third quarter of 2020, the Company repurchased $10 million in principal amount of the outstanding Energen 7.35% medium-term notes

due on July 28, 2027 at a price of 120% of the aggregate principal amount, which resulted in an immaterial loss on extinguishment of debt.

The Energen Notes are the senior unsecured obligations of Energen and, post-merger, Energen, as a wholly owned subsidiary, continues to be the
sole  issuer  and  obligor  under  the  Energen  Notes.  The  Energen  Notes  rank  equally  in  right  of  payment  with  all  other  senior  unsecured  indebtedness  of
Energen if any, and are effectively subordinated to Energen’s senior secured indebtedness, if any, to the extent of the value of the collateral securing such
indebtedness. None of the Company’s other subsidiaries guarantee the Energen Notes.

The Energen Indenture contains certain covenants that, subject to certain exceptions and qualifications, limit Energen’s ability to incur or suffer to

exist liens, to enter into sale and leaseback transactions, to consolidate with or merge

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

into any other entity, and to convey, transfer or lease its properties and assets substantially as an entirety to any person or entity.  The Energen Indenture not
include a restriction on the payment of dividends.

On  November  29,  2018,  Energen  guaranteed  the  Company’s  indebtedness  under  its  credit  facility  and  granted  a  lien  on  certain  of  its  assets  to
secure  such  indebtedness,  and  on  December  21,  2018,  Energen’s  subsidiaries  guaranteed  the  Company’s  indebtedness  under  its  credit  agreement  and
granted liens on certain of their assets to secure such indebtedness.

Viper’s Credit Agreement

On  July  20,  2018,  Viper  LLC,  as  borrower,  entered  into  an  amended  and  restated  credit  agreement  with  Viper,  as  guarantor,  Wells  Fargo,  as
administrative agent, and the other lenders. The credit agreement, as amended (the “Viper credit agreement”), provides for a revolving credit facility in the
maximum credit amount of $2.0 billion and a borrowing base based on Viper LLC’s oil and natural gas reserves and other factors (the “borrowing base”) of
$580 million, subject to scheduled semi-annual and other elective borrowing base redeterminations. The borrowing base is scheduled to be re-determined
semi-annually  with  effective  dates  of  May  1st  and  November  1st.  In  addition,  Viper  LLC  and  Wells  Fargo  each  may  request  up  to  three  interim
redeterminations of the borrowing base during any 12-month period. The borrowing base was reaffirmed at $580 million by the lenders during the regularly
scheduled (semi-annual) fall 2020 redetermination in November 2020. As of December 31, 2020, Viper LLC had $84 million of outstanding borrowings
and  $496  million  available  for  future  borrowings  under  the  Viper  credit  agreement.  The  weighted  average  interest  rates  on  borrowings  under  the  Viper
credit agreement were 2.20%, 4.51%, and 4.37% for the years ended December 31, 2020, 2019 and 2018, respectively.

The outstanding borrowings under the Viper credit agreement bear interest at a per annum rate elected by Viper LLC that is equal to an alternate
base rate (which is equal to the greatest of the prime rate, the Federal Funds effective rate plus 0.5% and 3-month LIBOR plus 1.0%) or LIBOR, in each
case plus the applicable margin. The applicable margin ranges from 0.75% to 1.75% per annum in the case of the alternate base rate and from 1.75% to
2.75% per annum in the case of LIBOR, in each case depending on the amount of loans and letters of credit outstanding in relation to the commitment,
which is defined as the lesser of the maximum credit amount and the borrowing base. Viper LLC is obligated to pay a quarterly commitment fee ranging
from  0.375%  to  0.500%  per  year  on  the  unused  portion  of  the  commitment,  which  fee  is  also  dependent  on  the  amount  of  loans  and  letters  of  credit
outstanding in relation to the commitment. Loan principal may be optionally repaid from time to time without premium or penalty (other than customary
LIBOR breakage), and is required to be repaid (i) to the extent the loan amount exceeds the commitment or the borrowing base, whether due to a borrowing
base redetermination or otherwise (in some cases subject to a cure period), (ii) in an amount equal to the net cash proceeds from the sale of property when a
borrowing base deficiency or event of default exists under the credit agreement and (iii) at the maturity date of November 1, 2022. The loan is secured by
substantially all of the assets of Viper and Viper LLC.

The  Viper  credit  agreement  contains  various  affirmative,  negative  and  financial  maintenance  covenants.  These  covenants,  among  other  things,
limit  additional  indebtedness,  additional  liens,  sales  of  assets,  mergers  and  consolidations,  dividends  and  distributions,  transactions  with  affiliates  and
entering into certain swap agreements and require the maintenance of the financial ratios described below.

Financial Covenant
Ratio of total net debt to EBITDAX, as defined in the Viper credit agreement
Ratio of current assets to liabilities, as defined the Viper credit agreement

Required Ratio
Not greater than 4.0 to 1.0
Not less than 1.0 to 1.0

The covenant prohibiting additional indebtedness allows for the issuance of unsecured debt of up to $1.0 billion in the form of senior unsecured
notes  and,  in  connection  with  any  such  issuance,  the  reduction  of  the  borrowing  base  by  25%  of  the  stated  principal  amount  of  each  such  issuance.  A
borrowing base reduction in connection with such issuance may require a portion of the outstanding principal of the loan to be repaid.

As of December 31, 2020, Viper LLC was in compliance with all financial maintenance covenants under the Viper credit agreement, as then in
effect. The lenders may accelerate all of the indebtedness under the Viper credit agreement upon the occurrence and during the continuance of any event of
default. The Viper credit agreement contains customary events of default, including non-payment, breach of covenants, materially incorrect representations,
cross-default,  bankruptcy  and  change  of  control.  With  certain  specified  exceptions,  the  terms  and  provisions  of  the  credit  agreement  generally  may  be
amended with the consent of the lenders holding a majority of the outstanding loans or commitments to lend.

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Table of Contents

Viper’s Notes

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

On October 16, 2019, Viper completed an offering in which it issued its 5.375% Senior Notes due 2027 in aggregate principal amount of $500
million  (the  “Viper  Notes”).  Viper  received  gross  proceeds  of  $500  million  from  the  such  offering,  which  it  loaned  to  Viper  LLC.  Viper LLC paid the
expenses of the offering, resulting in net proceeds of the offering of $490 million, which Viper LLC used to pay down borrowings under the Viper credit
agreement.

The Viper Notes were issued under an indenture, dated as of October 16, 2019, among Viper, as issuer, Viper LLC, as guarantor and Wells Fargo,
as trustee (the “Viper Indenture”). Pursuant to the Viper Indenture and the Viper Notes, interest on the Viper Notes accrues at a rate of 5.375% per annum
on  the  outstanding  principal  amount  thereof,  payable  semi-annually  on  May  1  and  November  1  of  each  year,  commencing  on  May  1,  2020.  The  Viper
Notes will mature on November 1, 2027.

During the year ended December 31, 2020, Viper repurchased $20 million of outstanding principal of the Viper notes at a cash price ranging from
97.5% to 98.5% of the aggregate principal amount, which resulted in an immaterial gain on extinguishment of debt, and $480 million in aggregate principal
amount remained outstanding at December 31, 2020.

Viper LLC guarantees the Viper Notes pursuant to the Viper Indenture. Neither the Company nor any of its other subsidiaries guarantee the Viper

Notes.

The Viper Indenture contains certain covenants that, subject to certain exceptions and qualifications, among other things, limit Viper’s ability and
the  ability  of  its  restricted  subsidiaries  to  incur  or  guarantee  additional  indebtedness  or  issue  certain  redeemable  or  preferred  equity,  make  certain
investments,  declare  or  pay  dividends  or  make  distributions  on  equity  interests  or  redeem,  repurchase  or  retire  equity  interests  or  subordinated
indebtedness, transfer or sell assets, agree to payment restrictions affecting its restricted subsidiaries, consolidate, merge, sell or otherwise dispose of all or
substantially all of its assets, enter into transactions with affiliates, incur liens and designate certain of its subsidiaries as unrestricted subsidiaries. These
covenants are subject to numerous exceptions, some of which are material. Certain of these covenants are subject to termination upon the occurrence of
certain events.

Rattler’s Credit Agreement

In connection with the Rattler Offering, Rattler, as parent, and Rattler LLC, as borrower, entered into a credit agreement, dated May 28, 2019, with

Wells Fargo, as administrative agent, and a syndicate of banks, as lenders party thereto (the “Rattler credit agreement”).

The  Rattler  credit  agreement  provides  for  a  revolving  credit  facility  in  the  maximum  credit  amount  of  $600  million.  Loan  principal  may  be
optionally repaid from time to time without premium or penalty (other than customary LIBOR breakage), and is required to be paid at the maturity date of
May 28, 2024. The Rattler credit agreement is guaranteed by Rattler, Tall City, Rattler OMOG LLC and Rattler Ajax Processing LLC. As of December 31,
2020, Rattler LLC had $79 million of outstanding borrowings and $521 million available for future borrowings under the Rattler credit agreement. The
weighted average interest rates on borrowings under the Rattler credit agreement were 2.10% and 3.13% for the years ended December 31, 2020 and 2019,
respectively.

The outstanding borrowings under the Rattler credit agreement bear interest at a per annum rate elected by Rattler LLC that is based on the prime
rate or LIBOR, in each case plus an applicable margin. The applicable margin ranges from 0.250% to 1.250% per annum for prime-based loans and 1.250%
to  2.250%  per  annum  for  LIBOR  loans,  in  each  case  depending  on  the  Consolidated  Total  Leverage  Ratio  (as  defined  in  the  Rattler  credit  agreement).
Rattler LLC is obligated to pay a quarterly commitment fee ranging from 0.250% to 0.375% per annum on the unused portion of the commitment, which
fee is also dependent on the Consolidated Total Leverage Ratio.

The  Rattler  credit  agreement  contains  various  affirmative  and  negative  covenants.  These  covenants,  among  other  things,  limit  additional
indebtedness,  additional  liens,  sales  of  assets,  mergers  and  consolidations,  distributions  and  other  restricted  payments,  transactions  with  affiliates,  and
entering into certain swap agreements, in each case of Rattler, Rattler LLC and their restricted subsidiaries. The covenants are subject to exceptions set
forth in the Rattler credit agreement, including an exception allowing Rattler LLC or Rattler to issue unsecured debt securities and an exception allowing
payment of distributions if no default exists. The Rattler credit agreement may be used to fund capital expenditures, to finance working

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

capital, for general company purposes, to pay fees and expenses related to the credit agreement, and to make distributions permitted under the Rattler credit
agreement.

The Rattler credit agreement also contains financial maintenance covenants that require the maintenance of the financial ratios described below:

Financial Covenant
Consolidated Total Leverage Ratio commencing with the fiscal quarter ending September 30, 2019 Not greater than 5.00 to 1.00 (or not greater than 5.50

Required Ratio

to 1.00 for 3 fiscal quarters following certain
acquisitions), but if the Consolidated Senior Secured
Leverage Ratio (as defined in the Rattler credit
agreement) is applicable, then not greater than 5.25 to
1.00)

Consolidated Senior Secured Leverage Ratio commencing with the last day of any fiscal quarter in
which the Financial Covenant Election (as defined in the Rattler credit agreement) is made
Consolidated Interest Coverage Ratio (as defined in the Rattler credit agreement) commencing with
the fiscal quarter ending September 30, 2019

Not greater than 3.50 to 1.00

Not less than 2.50 to 1.00

As  of  December  31,  2020,  Rattler  LLC  was  in  compliance  with  all  financial  maintenance  covenants  under  the  Rattler  credit  agreement.  The
lenders may accelerate all of the indebtedness under the Rattler credit agreement upon the occurrence and during the continuance of any event of default.
The Rattler credit agreement contains customary events of default, including non-payment, breach of covenants, materially incorrect representations, cross-
default, bankruptcy and change in control.

Rattler’s Notes

On July 14, 2020, Rattler completed an offering of $500 million in aggregate principal amount of its 5.625% Senior Notes due 2025, (the “Rattler
Notes”). The Rattler Notes mature on July 15, 2025, and interest on the Rattler Notes is payable on January 15 and July 15 of each year, beginning on
January 15, 2021. Rattler received net proceeds of approximately $490 million from the Rattler Notes and loaned the gross proceeds to Rattler LLC to
repay then outstanding borrowings under the Rattler Credit Agreement. The Rattler Notes are senior unsecured obligations of Rattler, rank equally in right
of payment with all of Rattler’s existing and future senior indebtedness and initially are guaranteed on a senior unsecured basis by Rattler LLC, Tall City,
Rattler OMOG LLC and Rattler Ajax Processing LLC. Neither the Company nor Rattler’s General Partner guarantee the Rattler Notes. In the future, each
of  Rattler’s  restricted  subsidiaries  that  either  (1)  guarantees  any  of  its  or  a  guarantor’s  other  indebtedness  or  (2)  is  classified  as  a  domestic  restricted
subsidiary under the indenture governing the Rattler Notes and is an obligor with respect to any indebtedness under any credit facility will be required to
guarantee the Rattler Notes.

The indenture under which the Rattler Notes were issued contains certain covenants that, subject to certain exceptions and qualifications, among
other things, limit Rattler’s ability and the ability of its restricted subsidiaries to incur or guarantee additional indebtedness or issue certain redeemable or
preferred  equity,  make  certain  investments,  declare  or  pay  dividends  or  make  distributions  on  equity  interests  or  redeem,  repurchase  or  retire  equity
interests or subordinated indebtedness, transfer or sell assets, agree to payment restrictions affecting its restricted subsidiaries, consolidate, merge, sell or
otherwise  dispose  of  all  or  substantially  all  of  its  assets,  enter  into  transactions  with  affiliates,  incur  liens  and  designate  certain  of  its  subsidiaries  as
unrestricted  subsidiaries.  These  covenants  are  subject  to  numerous  exceptions,  some  of  which  are  material.  Certain  of  these  covenants  are  subject  to
termination upon the occurrence of certain events.

Alliance with Obsidian Resources, L.L.C.

The  Company  entered  into  a  participation  and  development  agreement  (the  “DrillCo  Agreement”),  dated  September  10,  2018,  with  Obsidian
Resources, L.L.C. (“CEMOF”) to fund oil and natural gas development. Funds managed by CEMOF and its affiliates have agreed to commit to funding
certain costs out of CEMOF’s net production revenue and, for a period of time, to the extent not funded by such revenue, up to an additional $300 million,
to fund drilling programs on locations provided by the Company. Subject to adjustments depending on asset characteristics and return expectations of the
selected drilling plan, CEMOF will fund up to 85% of the costs associated with new wells drilled under the DrillCo Agreement and is expected to receive
an 80% working interest in these wells until it reaches certain payout thresholds equal to a cumulative 9%

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

and then 13% internal rate of return. Upon reaching the final internal rate of return target, CEMOF’s interest will be reduced to 15%, while the Company’s
interest will increase to 85%. As of December 31, 2020, the amount due to CEMOF related to this alliance was $79 million. As of December 31, 2020,
fifteen joint wells have been drilled and completed.

Interest expense

The following amounts have been incurred and charged to interest expense for the years ended December 31, 2020, 2019 and 2018:

Interest expense
Other fees and expenses
Less: interest income
Less: capitalized interest

Interest expense, net

2020

Year Ended December 31,
2019
(in millions)

2018

$

$

250  $
6 
4 
55 
197  $

235  $
4 
1 
66 
172  $

110 
10 
1 
32 
87 

12.    CAPITAL STOCK AND EARNINGS PER SHARE

The Company did not complete any equity offerings during the years ended December 31, 2020, 2019 and 2018.

Viper Equity Offerings

For information regarding Viper’s completed equity offerings during the years ended December 31, 2019 and 2018, refer to Note 5—Viper Energy

Partners LP.

Rattler’s Initial Public Offering

For information regarding Rattler’s initial public offering during the year ended December 31, 2019, refer to Note 6—Rattler Midstream LP.

Stock Repurchase Program

In May 2019, the Company’s board of directors approved a stock repurchase program to acquire up to $2 billion of the Company’s outstanding
common stock through December 31, 2020. Purchases under the repurchase program were made from time to time in open market or privately negotiated
transactions, and were subject to market conditions, applicable legal requirements, contractual obligations and other factors. The repurchase program did
not require the Company to acquire any specific number of shares. During the years ended December 31, 2020 and 2019, the Company repurchased $98
million and $598 million, respectively, of its common stock under the repurchase program. The repurchase program was suspended beginning in the first
quarter of 2020 and expired on December 31, 2020.

Earnings Per Share

The  Company’s  basic  earnings  per  share  amounts  have  been  computed  based  on  the  weighted-average  number  of  shares  of  common  stock
outstanding for the period. Diluted earnings per share include the effect of potentially dilutive shares outstanding for the period. Additionally, the per share
earnings  of  Viper  and  Rattler  are  included  in  the  consolidated  earnings  per  share  computation  based  on  the  consolidated  group’s  holdings  of  the
subsidiaries.

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

A reconciliation of the components of basic and diluted earnings per common share is presented in the table below:

Year Ended December 31,
2019
(In millions, except per share amounts, shares in thousands)

2018

2020

Net income (loss) attributable to common stock
Weighted average common shares outstanding:

Basic weighted average common units outstanding
Effect of dilutive securities:

Potential common shares issuable

(1)

Diluted weighted average common shares outstanding

Basic net income (loss) attributable to common stock
Diluted net income (loss) attributable to common stock

$

$
$

(4,517) $

240  $

846 

157,976 

— 
157,976 

(28.59) $
(28.59) $

163,493 

350 
163,843 

1.47  $
1.47  $

104,622 

307 
104,929 

8.09 
8.06 

(1)  For  the  year  ended  December  31,  2020,  there  were  696,223  potential  common  shares  excluded  from  the  computation  of  diluted  earnings  per  share
because their inclusion would have been anti-dilutive due to recording a net loss.

Change in Ownership of Consolidated Subsidiaries

The following table summarizes changes in the ownership interest in consolidated subsidiaries during the period:

Net income (loss) attributable to the Company

Change in ownership of consolidated subsidiaries

(1)

$

Change from net income (loss) attributable to the Company's stockholders and transfers to
non-controlling interest

$

2020

Year Ended December 31,
2019
(in millions)

2018

(4,517) $
358 

(4,159) $

240  $
(33)

207  $

846 
150 

996 

(1) The year ended December 31, 2020 includes an adjustment to non-controlling interest for Rattler of $329 million and to additional paid-in-capital of
$329 million to reflect the ownership structure that was effective at June 30, 2020. The adjustment had no impact on earnings.

13.    EQUITY-BASED COMPENSATION

The following table presents the effects of the equity and stock based compensation plans and related costs:

2020

Year Ended December 31,
2019
(In millions)

2018

General and administrative expenses
Equity-based compensation capitalized pursuant to full cost method of accounting for oil
and natural gas properties

$

$

37  $

16  $

48  $

17  $

27 

10 

Restricted Stock Units

Under  the  Equity  Plan,  approved  by  the  Board  of  Directors,  the  Company  is  authorized  to  issue  restricted  stock  and  restricted  stock  units  to
eligible employees. The Company estimates the fair values of restricted stock awards and units as the closing price of the Company’s common stock on the
grant date of the award, which is expensed over the applicable vesting period.

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

The following table presents the Company’s restricted stock awards and units activity under the Equity Plan during the year ended December 31,

2020:

Unvested at December 31, 2019

Granted
Vested
Forfeited

Unvested at December 31, 2020

Restricted Stock
Awards & Units

Weighted Average Grant-
Date
Fair Value

505,867  $
921,730  $
(283,330) $
(30,787) $
1,113,480  $

96.01 
35.38 
86.81 
80.94 

48.58 

The  aggregate  fair  value  of  restricted  stock  units  that  vested  during  the  years  ended  December  31,  2020,  2019  and  2018  was  $25  million,  $45
million  and  $19  million,  respectively.  As  of  December  31,  2020,  the  Company’s  unrecognized  compensation  cost  related  to  unvested  restricted  stock
awards and units was $41 million. Such cost is expected to be recognized over a weighted-average period of 2.3 years.

During the year ended December 31, 2020, the Company modified an insignificant amount of restricted stock units to include dividend equivalent

rights during the vesting period which did not result in any incremental compensation costs.

Performance-Based Restricted Stock Units

To provide long-term incentives for executive officers to deliver competitive returns to the Company’s stockholders, the Company has granted
performance-based  restricted  stock  units  to  eligible  employees.  The  ultimate  number  of  shares  awarded  from  these  conditional  restricted  stock  units  is
based upon measurement of total stockholder return of the Company’s common stock (“TSR”) as compared to a designated peer group during a three-year
performance period.

In February 2018, eligible employees received performance restricted stock unit awards totaling 117,423 units from which a minimum of 0% and
a  maximum  of  200%  units  could  be  awarded  based  upon  the  TSR  during  the  performance  period  of  January  1,  2018  to  December  31,  2020,  subject  to
continued employment. All remaining awards under this grant cliff vested at December 31, 2020.

In March 2019, eligible employees received performance restricted stock unit awards totaling 199,723 units from which a minimum of 0% and a
maximum of 200% units could be awarded based upon the TSR during the performance period of January 1, 2019 to December 31, 2021 and cliff vest at
December 31, 2021 subject to continued employment. In March 2019, eligible employees received performance restricted stock unit awards totaling 32,958
units  from  which  a  minimum  of  0%  and  a  maximum  of  200%  units  could  be  awarded.  The  awards  have  a  performance  period  of  January  1,  2019  to
December 31, 2021 and vest in five equal installments beginning on March 1, 2025.

In March 2020, eligible employees received performance restricted stock unit awards totaling 225,047 units from which a minimum of 0% and a
maximum of 200% units could be awarded based upon the TSR during the three-year performance period of January 1, 2020 to December 31, 2022 and
cliff vest at December 31, 2022 subject to continued employment. The initial payout of the March 2020 awards will be further adjusted by a TSR modifier
that may reduce the payout or increase the payout up to a maximum of 250%.

The  fair  value  of  each  performance  restricted  stock  unit  is  estimated  at  the  date  of  grant  using  a  Monte  Carlo  simulation,  which  results  in  an

expected percentage of units to be earned during the performance period.

The following table presents a summary of the grant-date fair values of performance restricted stock units granted and the related assumptions:

Grant-date fair value
Grant-date fair value (5-year vesting)
Risk-free rate
Company volatility

2020

2019

2018

$

70.17 

$
$

0.86 %
36.70 %

137.22 
132.48 

2.55 %
35.00 %

$

170.45 

1.99 %
35.90 %

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Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

The  following  table  presents  the  Company’s  performance  restricted  stock  unit  activity  under  the  Equity  Plan  for  the  year  ended  December  31,

2020:

Unvested at December 31, 2019

(1)

Granted
Vested
Forfeited

Unvested at December 31, 2020

(2)

Performance Restricted
Stock Units

Weighted Average Grant-
Date Fair Value

271,819  $
281,519  $
(133,355) $
(8,396) $
411,587  $

147.07 
88.41 
139.43 
170.45 

99.10 

(1) Includes units granted to satisfy the final payout of vested performance restricted stock units based on the TSR ranking for the performance period.
(2) A maximum of 935,698 units could be awarded based upon the Company’s final TSR ranking.

As  of  December  31,  2020,  the  Company’s  unrecognized  compensation  cost  related  to  unvested  performance  based  restricted  stock  awards  and

units was $22 million, which is expected to be recognized over a weighted-average period of 2.1 years.

Rattler Long-Term Incentive Plan

On  May  22,  2019,  the  board  of  directors  of  Rattler’s  General  Partner  adopted  the  Rattler  Midstream  LP  Long  Term  Incentive  Plan  (“Rattler
LTIP”), for employees, consultants and directors of Rattler’s General Partner and any of its affiliates, including Diamondback, who perform services for
Rattler. The Rattler LTIP provides for the grant of unit options, unit appreciation rights, restricted units, unit awards, phantom units, distribution equivalent
rights, cash awards, performance awards, other unit-based awards and substitute awards.

Under the Rattler LTIP, the board of directors of Rattler’s General Partner is authorized to issue phantom units to eligible employees and non-
employee directors. Rattler estimates the fair value of phantom units as the closing price of Rattler’s common units on the grant date of the award, which is
expensed over the applicable vesting period. Upon vesting, the phantom units entitle the recipient to one common unit of Rattler for each phantom unit.
The recipients are also entitled to distribution equivalent rights, which represent the right to receive a cash payment equal to the value of the distributions
paid on one phantom unit between the grant date and the vesting date.

The following table presents the phantom unit activity under the Rattler LTIP for the year ended December 31, 2020:

Unvested at December 31, 2019

Granted
Vested
Forfeited

Unvested at December 31, 2020

Phantom
Units

2,226,895  $
348,379  $
(460,781) $
(24,825) $
2,089,668  $

Weighted Average
Grant-Date
Fair Value

19.14 
6.51 
19.06 
17.54 

17.07 

The aggregate fair value of phantom units that vested during the year ended December 31, 2020 was $9 million. As of December 31, 2020, the
unrecognized compensation cost related to unvested phantom units was $30 million which is expected to be recognized over a weighted-average period of
3.2 years.

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Table of Contents

14.    INCOME TAXES

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Deferred  income  taxes  reflect  the  net  tax  effects  of  temporary  differences  between  the  carrying  amounts  of  assets  and  liabilities  for  financial
reporting  purposes  and  the  amounts  used  for  income  tax  purposes.  The  Company  is  subject  to  corporate  income  taxes  and  the  Texas  margin  tax.  The
Company and its subsidiaries, other than Viper, Viper LLC, Rattler and Rattler LLC, file a federal corporate income tax return on a consolidated basis. As
discussed further below, Viper is a taxable entity for federal income tax purposes effective May 10, 2018, and as such files a federal corporate income tax
return including the activity of its investment in Viper LLC. Subsequent to Rattler’s election to be treated as a corporation for federal income tax purposes
effective May 24, 2019, Rattler is also a taxable entity and as such files a federal corporate income tax return including the activity of its investment in
Rattler LLC. Viper’s and Rattler’s provision for income taxes is included in the Company’s consolidated income tax provision and, to the extent applicable,
in net income attributable to the non-controlling interest.

The Company’s effective income tax rates were 19.1%, 13.0% and 15.1% for the years ended December 31, 2020, 2019 and 2018, respectively.
Total income tax benefit for the year ended December 31, 2020 differed from amounts computed by applying the United States federal statutory tax rate to
pre-tax loss for the period primarily due to the impact of recording a valuation allowance on Viper’s deferred tax assets, partially offset by state income
taxes net of federal benefit and by tax benefit resulting from the carryback of federal net operating losses. Total income tax expense for the year ended
December 31, 2019 differed from amounts computed by applying the United States federal statutory rate to pre-tax income for the period primarily due to
the impact of deferred taxes recognized as a result of Viper’s change in tax status and state income taxes net of federal benefit. Total income tax expense for
the year ended December 31, 2018 differed from amounts computed by applying the United States federal statutory rate to pre-tax income for the period
primarily due to the impact of deferred taxes recognized as a result of Viper’s change in tax status, net income attributable to the noncontrolling interest,
and state income taxes net of federal benefit.

The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was enacted on March 27, 2020. This legislation included a number of
provisions  applicable  to  U.S.  income  taxes  for  corporations,  including  providing  for  carryback  of  certain  net  operating  losses,  accelerated  refund  of
minimum  tax  credits,  and  modifications  to  the  rules  limiting  the  deductibility  of  business  interest  expense.  The  Company  considered  the  impact  of  this
legislation in the period of enactment, resulting in current income tax benefit of $62 million, offset by deferred income tax expense of $38 million, for the
year ended December 31, 2020 related to the carryback of approximately $179 million of the Company’s federal net operating losses to tax years in which
the corporate income tax rate was 35%. Prior to the enactment of the CARES Act in the first quarter of 2020, there was no tax refund available to the
Company with respect to its losses, resulting in deferred tax assets associated with federal net operating loss carryforwards at the statutory 21% corporate
income  tax  rate.  As  a  result  of  the  refund  associated  with  such  carryback  as  well  as  the  accelerated  refund  available  for  minimum  tax  credits,  the
Company’s current federal taxes receivable totaled approximately $100 million as of December 31, 2020.

The components of the Company’s consolidated provision for income taxes from continuing operations for the years ended December 31, 2020,

2019 and 2018 are as follows:

Current income tax provision (benefit):

Federal
State

Total current income tax provision (benefit)

Deferred income tax provision (benefit):

Federal
State

Total deferred income tax provision (benefit)

Total provision for (benefit from) income taxes

2020

Year Ended December 31,
2019
(In millions)

2018

(62) $
— 
(62)

(1,010)
(32)
(1,042)
(1,104) $

—  $
— 
— 

40 
7 
47 
47  $

— 
— 
— 

160 
8 
168 
168 

$

$

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

A reconciliation of the statutory federal income tax amount from continuing operations to the recorded expense is as follows:

Income tax expense at the federal statutory rate (21%)
Impact of nontaxable noncontrolling interest
Income tax benefit relating to net operating loss carryback
State income tax expense, net of federal tax effect
Non-deductible compensation
Change in valuation allowance
Deferred taxes related to change in Viper LP's tax status
Other, net

Provision for (benefit from) income taxes

2020

Year Ended December 31,
2019
(In millions)

2018

$

$

(1,213) $
— 
(25)
(30)
6 
153 
— 
5 
(1,104) $

76  $
— 
— 
6 
4 
— 
(42)
3 
47  $

The components of the Company’s deferred tax assets and liabilities as of December 31, 2020 and 2019 are as follows:

Deferred tax assets:

Net operating loss and other carryforwards
Derivative instruments
Stock based compensation
Viper's investment in Viper LLC
Rattler's investment in Rattler LLC
Other

Deferred tax assets
Valuation allowance

Deferred tax assets, net of valuation allowance

Deferred tax liabilities:

Oil and natural gas properties and equipment
Midstream investments
Derivative instruments
Rattler's investment in Rattler LLC
Other

Total deferred tax liabilities

Net deferred tax liabilities

December 31,

2020

2019

(In millions)

$

524  $
60 
7 
150 
58 
8 
807 
(166)
641 

1,156 
192 
— 
— 
3 
1,351 

$

710  $

234 
(5)
— 
8 
5 
— 
(73)
(1)
168 

453 
— 
7 
134 
— 
11 
605 
(7)
598 

2,275 
50 
6 
8 
3 
2,342 
1,744 

The  Company  had  net  deferred  tax  liabilities  of  approximately  $0.7  billion  and  $1.7  billion  at  December  31,  2020  and  2019,  respectively.  On
November 29, 2018, the Company completed its acquisition of Energen. For federal income tax purposes, the acquisition was a tax-free merger whereby
the Company’s tax basis in Energen assets and liabilities was unaffected by the acquisition. As of December 31, 2019, the Company had completed its
purchase price allocation for the acquisition, including a deferred tax liability of $1.4 billion associated with the acquired assets.

The Company incurred a tax net operating loss ("NOL") in the current year due principally to the ability to expense certain intangible drilling and
development costs under current law. There is no tax refund available to the Company as a result of its loss, nor is there any current federal income tax
payable. At December 31, 2020, the Company had approximately $0.4 billion of federal NOLs expiring in 2032 through 2037 and $1.9 billion of federal
NOLs with an indefinite carryforward

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

life, including NOLs acquired from Energen. The Company principally operates in the state of Texas and is subject to Texas Margin Tax, which currently
does  not  include  an  NOL  carryover  provision.  The  Company’s  federal  tax  attributes  acquired  from  Energen  are  subject  to  an  annual  limitation  under
Section 382 of the Internal Revenue Code of 1986, as amended, which relates to tax attribute limitations upon the 50% or greater change of ownership of
an entity during any three-year look back period. The Company believes that the application of Section 382 will not have an adverse effect on future usage
of the Company’s NOLs and credits.

In  addition  to  the  carryback  of  certain  of  the  Company’s  federal  NOLs  pursuant  to  the  CARES  Act  as  noted  above,  modifications  to  the  rules
regarding  deductibility  of  business  interest  expense  resulting  from  enactment  of  the  CARES  Act  and  from  the  issuance  of  final  regulations  by  the  U.S.
Department of Treasury in July 2020 resulted in a reduction to carryforwards of the Company’s business interest expense and corresponding increase to its
federal net operating loss carryforwards.

As of December 31, 2020, the Company had a valuation allowance of $5 million primarily related to certain state NOL carryforwards which the
Company  does  not  believe  are  realizable  as  it  does  not  anticipate  future  operations  in  those  states  and  a  valuation  allowance  of  $161  million  related  to
Viper’s deferred tax assets, as discussed further below. Management’s assessment at each balance sheet date included consideration of all available positive
and negative evidence including the anticipated timing of reversal of deferred tax liabilities. Management believes that the balance of the Company’s NOLs
are realizable to the extent of future taxable income primarily related to the excess of book carrying value of properties over their respective tax bases. As
of December 31, 2020, management determined that it is more likely than not that the Company will realize its remaining deferred tax assets.

As discussed further in Note 5—Viper Energy Partners LP, on March 29, 2018, Viper announced that the Board of Directors of its General Partner
had unanimously approved a change of Viper’s federal income tax status from that of a pass-through partnership to that of a taxable entity, which change
became  effective  on  May  10,  2018.  The  transactions  undertaken  in  connection  with  the  change  in  Viper’s  tax  status  were  not  taxable  to  the  Company.
Subsequent to Viper’s change in tax status, Viper’s provision for income taxes is included in the Company’s consolidated financial statements and to the
extent applicable, in net income attributable to the non-controlling interest.

At December 31, 2020, the Company’s net deferred tax liabilities include deferred tax assets of approximately $11 million related to Viper’s NOL
carryforwards and approximately $150 million related to Viper’s investment in Viper LLC, approximately $115 million of which was recorded as a result
of Viper’s change in tax status. Based on information available regarding unitholders; tax basis, Viper revised its estimate of the difference between its tax
basis  and  its  basis  for  financial  accounting  purposes  in  Viper  LLC  on  the  date  of  the  tax  status  change,  resulting  in  deferred  income  tax  benefit  of  $42
million and $73 million included in the Company’s consolidated income tax provision for the years ended December 31, 2019 and 2018, respectively. As of
December 31, 2020, Viper had federal NOL carryforwards of approximately $50 million which may be carried forward indefinitely to offset future taxable
income.

As of December 31, 2020, Viper had a valuation allowance of approximately $161 million related to deferred tax assets that Viper does not believe
are more likely than not to be realized. Management considers the likelihood that Viper’s NOLs and other deferred tax attributes will be utilized prior to
their expiration, if applicable. The determination to record a valuation allowance was based on Management’s assessment of all available evidence, both
positive and negative, supporting realizability of Viper’s deferred tax assets as required by applicable accounting standards. In light of those criteria for
recognizing the tax benefit of deferred tax assets, the assessment resulted in application of a valuation allowance against Viper’s federal deferred tax assets
as of March 31, 2020 and subsequent balance sheet dates within the year ended December 31, 2020.

As  discussed  further  in  Note  6—Rattler  Midstream  LP,  on  May  28,  2019,  Rattler  completed  its  initial  public  offering.  Even  though  Rattler  is
organized as a limited partnership under state law, Rattler is subject to U.S. federal and state income tax at corporate rates, subsequent to the effective date
of Rattler’s election to be treated as a corporation for U.S. federal income tax purposes. As such, Rattler’s provision for income taxes is included in the
Company’s consolidated financial statements and to the extent applicable, in net income attributable to the non-controlling interest.

At December 31, 2020, the Company’s net deferred tax liabilities include a deferred tax asset of approximately $58 million related to Rattler’s
investment  in  Rattler  LLC.  In  the  second  quarter  of  2020,  the  Company  recorded  an  increase  through  stockholders’  equity  to  the  carrying  value  of  its
investment in Rattler LLC. A corresponding adjustment to the noncontrolling interest resulted in a decrease in Rattler’s deferred tax liability related to its
investment in Rattler LLC and a

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

total net deferred tax asset balance for Rattler. Rattler incurred an NOL in the current year due principally to Rattler LLC’s tax deductions for accelerated
depreciation,  which  exceeded  its  other  items  of  taxable  income.  At  December  31,  2020,  Rattler  has  federal  net  operating  loss  carryforwards  of
approximately $75 million which may be carried forward indefinitely to offset future taxable income.

Management considers the likelihood that Rattler’s NOLs and other deferred tax attributes will be utilized prior to their expiration, if applicable.
At  December  31,  2020,  Rattler’s  assessment  included  consideration  of  all  available  positive  and  negative  evidence,  including  Rattler’s  projected  future
taxable income and the anticipated timing of reversal of deferred tax assets. As a result of the assessment, management determined that it is more likely
than not that Rattler will realize its deferred tax assets as of December 31, 2020.

The following table sets forth changes in the Company’s unrecognized tax benefits:

Balance at beginning of year

Increase resulting from prior period tax positions
Increase resulting from current period tax positions

Balance at end of year

Less: Effects of temporary items

Total that, if recognized, would impact the effective income tax rate as of the end of the year

December 31,

2020

2019

(in millions)
7  $

— 
— 
7 
(5)
2  $

7 
— 
— 
7 
(5)
2 

$

$

The Company recognizes the tax benefit from a tax position only if it is more likely than not that it will be sustained upon examination by the
taxing  authorities,  based  upon  the  technical  merits  of  the  position. During  the  year  ended  December  31,  2020,  the  statute  of  limitations  related  to  an
uncertain  tax  position  of  the  Company  expired,  and  upon  expiration  the  Company  recognized  tax  benefit  of  $0.3  million  and  recorded  a  reduction  to
interest  expense  of  less  than  $0.1  million. The  Company’s  federal  and  state  income  tax  returns  for  2012  through  the  current  tax  year  remain  open  and
subject to examination by the IRS and major state taxing jurisdictions. Energen is currently under IRS examination of its federal consolidated income tax
returns for 2014 and 2016. Accordingly, it is reasonably possible that significant changes to the reserve for uncertain tax positions may occur as a result of
various audits and the expiration of the statute of limitations. Although the timing and outcome of tax examinations is highly uncertain, the Company does
not expect the change in unrecognized tax benefit within the next 12 months would have a material impact to the financial statements.

The Company is continuing its practice of recognizing interest and penalties related to income tax matters as interest expense and general and
administrative expenses, respectively. During the years ended December 31, 2020 and 2019, there was less than $0.2 million of interest and no penalties
related to each period associated with uncertain tax positions recognized in the Company’s consolidated financial statements.

15. DERIVATIVES

All derivative financial instruments are recorded at fair value in the accompanying balance sheet. The Company has not designated its derivative
instruments as hedges for accounting purposes and, as a result, marks its derivative instruments to fair value and recognizes the cash and non-cash changes
in fair value in the consolidated statements of operations under the caption “Gain (loss) on derivative instruments, net.”

Commodity Contracts

The Company has entered into multiple crude oil, natural gas, natural gas liquids and diesel fuel derivatives, indexed to the respective indices as

noted in the table below, to reduce price volatility associated with certain of its oil and natural gas sales.

By using derivative instruments to economically hedge exposure to changes in commodity prices, the Company exposes itself to credit risk and
market risk. Credit risk is the failure of the counterparty to perform under the terms of the derivative contract. When the fair value of a derivative contract
is positive, the counterparty owes the Company, which

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

creates  credit  risk.  The  Company’s  counterparties  are  participants  in  the  secured  second  amended  and  restated  credit  agreement,  which  is  secured  by
substantially all of the assets of the guarantor subsidiaries; therefore, the Company is not required to post any collateral. The Company does not require
collateral from its counterparties. The Company has entered into derivative instruments only with counterparties that are also lenders in our credit facility
and have been deemed an acceptable credit risk.

As of December 31, 2020, the Company had the following outstanding derivative contracts. When aggregating multiple contracts, the weighted

average contract price is disclosed:

Settlement
Month

Settlement
Year

Type of Contract

Bbls/Mmbtu/Gallons
Per Day

Index

Swaps

Collars

Weighted
Average
Differential

Weighted
Average Fixed
Price

Weighted
Average Floor
Price

Weighted
Average
Ceiling Price

OIL

Jan. - Mar.
Apr. - June
July - Dec.
Jan. - June
Jan. - Mar.
Apr. - June
Jan. - June
Jan. - Dec.
Jan. - Dec.
Jan. - Mar.
Apr. - June
Jul. - Dec.
Jul. - Dec.
NATURAL GAS
Jan. - Dec.
Jan. - Dec.
Jan. - Dec.

2021
2021
2021
2021
2021
2021
2021
2021
2021
2021
2021
2021
2021

2021
2021
2022

(2)

Costless Collars
Costless Collars
Costless Collars
Roll Hedge
Swaps
Swaps
Basis Swap
Swaps
Swaps
Costless Collars
Costless Collars
Costless Collars
Swaptions

Swaps
Basis Swaps
Basis Swaps

37,000
15,000
10,000
12,000
5,000
2,000
8,000
5,000
5,000
82,000
80,000
60,000
5,000

200,000
230,000
100,000

WTI Cushing
WTI Cushing
WTI Cushing
WTI
WTI
WTI
WTI Midland
WTI Houston Argus
Brent
Brent
Brent
Brent
Brent

(1)

Henry Hub
(1)
Waha Hub
Waha Hub

(1)

$—
$—
$—
$(0.07)
$—
$—
$0.52
$—
$—
$—
$—
$—
$—

$—
$(0.69)
$(0.42)

$—
$—
$—
$—
$45.46
$47.35
$—
$37.78
$41.62
$—
$—
$—
$51.00

$2.65
$—
$—

$34.95
$33.00
$30.00
$—
$—
$—
$—
$—
$—
$39.04
$39.26
$39.43
$—

$—
$—
$—

$45.17
$45.33
$43.05
$—
$—
$—
$—
$—
$—
$48.51
$48.62
$48.12
$—

$—
$—
$—

(1) The Company has fixed price basis swaps for the spread between the Cushing crude oil price and the Midland WTI crude oil price as well as the spread
between  the  Henry  Hub  natural  gas  price  and  the  Waha  Hub  natural  gas  price.  The  weighted  average  differential  represents  the  amount  of  reduction  to
Cushing, Oklahoma, oil price and the Waha Hub natural gas price for the notional volumes covered by the basis swap contracts.
(2)  The  Company  has  rolling  hedge  basis  swaps  for  the  differential  between  the  NYMEX  prices  between  the  calendar  month  average  and  the  physical
crude oil delivery month. The weighted average differential represents the amount of reduction to Cushing, Oklahoma, oil price for the notional volumes
covered by the rolling hedge basis swap contracts.

Settlement Month

Settlement Year

Type of Contract

Bbls/Mcf Per Day

OIL

Jan. - Dec.

2022

Option

5,000

Index

Brent

Put Price

$35.00

F-39

Table of Contents

Interest Rate Swaps

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

The  Company  currently  uses  interest  rate  swaps  to  reduce  the  Company’s  exposure  to  variable  rate  interest  payments  associated  with  the
Company’s revolving credit facility. The interest rate swaps have not been designated as hedging instruments and as a result, the Company recognizes all
changes in fair value immediately in earnings.

Type

Interest Rate Swap
Interest Rate Swap
Interest Rate Swap
Interest Rate Swap

Effective Date

December 31, 2024
December 31, 2024
December 31, 2024
December 31, 2024

Contractual Termination
Date

Notional Amount (in
millions)

Interest Rate

December 31, 2054 $
December 31, 2054 $
December 31, 2054 $
December 31, 2054 $

250 
250 
250 
250 

1.692 %
1.8361 %
1.852 %
1.722 %

See Note 18—Subsequent Events for discussion of derivative transactions which occurred subsequent to December 31, 2020.

Balance sheet offsetting of derivative assets and liabilities

The  fair  value  of  swaps  is  generally  determined  using  established  index  prices  and  other  sources  which  are  based  upon,  among  other  things,
futures prices and time to maturity. These fair values are recorded by netting asset and liability positions, including any deferred premiums, that are with
the same counterparty and are subject to contractual terms which provide for net settlement. See Note 16—Fair Value Measurements for further details.

Gains and Losses on Derivative Instruments

None of the Company’s derivatives have been designated as hedges. As such, all changes in fair value are immediately recognized in earnings.

The following table summarizes the gains and losses on derivative instruments included in the consolidated statements of operations:

Gain (loss) on derivative instruments, net

Commodity contracts
Interest rate swaps

Total

Net cash received (paid) on settlements

Commodity contracts
(2)
Interest rate swaps

(1)

Total

2020

Year Ended December 31,
2019
(in millions)

2018

$

$

$

(32) $
(49)
(81) $

250 
— 
250  $

(151) $
43 
(108) $

37 
43 
80  $

101 
— 
101 

(121)
— 
(121)

(1) The year ended December 31, 2020 includes cash received on commodity contracts terminated prior to their contractual maturity of $17 million.
(2) The year ended December 31, 2019 includes cash received on interest rate swap contracts terminated prior to their contractual maturity of $43 million.

16.    FAIR VALUE MEASUREMENTS

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market
participants at the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of
unobservable inputs.

The fair value hierarchy is based on three levels of inputs, of which the first two are considered observable and the

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

last  unobservable,  that  may  be  used  to  measure  fair  value.  The  Company’s  assessment  of  the  significance  of  a  particular  input  to  the  fair  value
measurements  requires  judgment  and  may  affect  the  valuation  of  the  assets  and  liabilities  being  measured  and  their  placement  within  the  fair  value
hierarchy. The Company uses appropriate valuation techniques based on available inputs to measure the fair values of its assets and liabilities.

Level 1 - Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets as of the reporting date.

Level 2 - Observable market-based inputs or unobservable inputs that are corroborated by market data. These are inputs other than quoted prices
in active markets included in Level 1, which are either directly or indirectly observable as of the reporting date.

Level 3 - Unobservable inputs that are not corroborated by market data and may be used with internally developed methodologies that result in
management’s best estimate of fair value.

Financial assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurement.

The  Company  estimates  the  fair  values  of  proved  oil  and  natural  gas  properties  assumed  in  business  combinations  using  discounted  cash  flow
techniques and based on market assumptions as to the future commodity prices, internal estimates of future quantities of oil and natural gas reserves, future
estimated rates of production, expected recovery rates and risk-adjustment discounts. The estimated fair values of unevaluated oil and natural gas properties
were based on the location, engineering and geological studies, historical well performance, and applicable mineral lease terms. Given the unobservable
nature of the inputs, the estimated fair values of oil and natural gas properties assumed is deemed to use Level 3 inputs. The asset retirement obligations
assumed as part of business combinations are estimated using the same assumptions and methodology as described in Note 2—Summary  of  Significant
Accounting Policies.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Certain  assets  and  liabilities  are  reported  at  fair  value  on  a  recurring  basis,  including  the  Company’s  derivative  instruments  and  Viper’s
investment. Viper measured its previously outstanding investment, which was included in other assets on the consolidated balance sheet at December 31,
2019, utilizing the fair value option, and as such the investment was classified as Level 1 in the fair value hierarchy. The fair values of the Company’s
derivative contracts are measured internally using established commodity futures price strips for the underlying commodity provided by a reputable third
party, the contracted notional volumes, and time to maturity. These valuations are Level 2 inputs.

The following table provides (i) fair value measurement information for financial assets and liabilities measured at fair value on a recurring basis,
(ii) the gross amounts of recognized derivative assets and liabilities, (iii) the amounts offset under master netting arrangements with counterparties, and (iv)
the resulting net amounts presented in the Company’s consolidated balance sheets as of December 31, 2020 and December 31, 2019. The net amounts of
derivative instruments are classified as current or noncurrent based on their anticipated settlement dates.

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Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Assets:

Current:

Derivative Instruments

Non-current:

Derivative Instruments

Liabilities:
Current:

Derivative Instruments

Non-current:

Derivative Instruments

Assets:

Current:

Derivative Instruments

Non-current:
Investment
Derivative Instruments

Liabilities:
Current:

Derivative Instruments

Level 1

Level 2

Level 3

As of December 31, 2020

Total Gross Fair
Value
(in millions)

Gross Amounts
Offset in Balance
Sheet

Net Fair Value
Presented in Balance
Sheet

—  $

—  $

—  $

—  $

43  $

187  $

291  $

244  $

—  $

—  $

—  $

—  $

43  $

187  $

291  $

244  $

(42) $

(187) $

(42) $

(187) $

1 

— 

249 

57 

Level 1

Level 2

Level 3

As of December 31, 2019

Total Gross Fair
Value
(in millions)

Gross Amounts
Offset in Balance
Sheet

Net Fair Value
Presented in Balance
Sheet

—  $

19  $
—  $

64  $

—  $
7  $

—  $

—  $
—  $

64  $

19  $
7  $

(18) $

—  $
—  $

—  $

45  $

—  $

45  $

(18) $

46 

19 
7 

27 

$

$

$

$

$

$
$

$

F-42

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

The following table provides the fair value of financial instruments that are not recorded at fair value in the consolidated balance sheets:

Debt:

Revolving credit facility
4.625% Notes due 2021
7.320% Medium-term Notes, Series A, due 2022
2.875% Senior Notes due 2024
4.750% Senior Notes due 2025
5.375% Senior Notes due 2025
3.250% Senior Notes due 2026
7.350% Medium-term Notes, Series A, due 2027
7.125% Medium-term Notes, Series B, due 2028
3.500% Senior Notes due 2029
Viper revolving credit facility
Viper's 5.375% Senior Notes due 2027
Rattler revolving credit facility
Rattler’s 5.625% Senior Notes due 2025
DrillCo Agreement

December 31, 2020

December 31, 2019

Carrying
(1)
Value

Fair Value

(in millions)

Carrying
(1)
Value

Fair Value

$
$
$
$
$
$
$
$
$
$
$
$
$
$
$

23  $
191  $
21  $
993  $
496  $
799  $
793  $
—  $
107  $
1,187  $
84  $
472  $
79  $
491  $
79  $

23 
193 
22 
1,053 
565 
824 
857 
— 
119 
1,286 
84 
501 
79 
528 
79 

$
$
$
$
$
$
$
$
$
$
$
$
$
$
$

13  $
399  $
21  $
992  $
—  $
799  $
792  $
11  $
108  $
1,186  $
97  $
490  $
424  $
—  $
39  $

13 
411 
22 
1,012 
— 
840 
812 
12 
116 
1,226 
97 
521 
424 
— 
39 

(1) The carrying value includes associated deferred loan costs and any remaining discount or premium.

The fair values of the revolving credit facility, the Viper credit agreement and the Rattler credit agreement approximate their carrying values based
on borrowing rates available to the Company for bank loans with similar terms and maturities and is classified as Level 2 in the fair value hierarchy. The
fair values of the outstanding notes were determined using the December 31, 2020 quoted market prices, a Level 1 classification in the fair value hierarchy.

F-43

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Fair Value of Financial Assets

The carrying amount of cash and cash equivalents, receivables, funds held for escrow, prepaid expenses and other current assets, payables and

other accrued liabilities approximate their fair value because of the short-term nature of the instruments.

17.    COMMITMENTS AND CONTINGENCIES

The  Company  is  a  party  to  various  legal  proceedings,  disputes  and  claims  arising  in  the  course  of  its  business,  including  those  that  arise  from
interpretation  of  federal  and  state  laws  and  regulations  affecting  the  crude  oil  and  natural  gas  industry.  While  the  ultimate  outcome  of  the  pending
proceedings, disputes or claims, and any resulting impact on the Company, cannot be predicted with certainty, the Company’s management believes that
none of these matters, if ultimately decided adversely, will have a material adverse effect on the Company’s financial condition, results of operations or
cash flows. The Company’s assessment is based on information known about the pending matters and its experience in contesting, litigating and settling
similar  matters.  Actual  outcomes  could  differ  materially  from  the  Company’s  assessment.  The  Company  records  reserves  for  contingencies  related  to
outstanding legal proceedings, disputes or claims when information available indicates that a loss is probable, and the amount of the loss can be reasonably
estimated.

Commitments

The following is a schedule of minimum future payments with commitments that have initial or remaining noncancelable terms in excess of one

year as of December 31, 2020:

Year Ending December 31,

2021
2022
2023
2024
2025
Thereafter

Total

Transportation
(1)
Commitments

Sand Supply
(2)
Agreement
(in millions)

Produced Water
Disposal
Commitments

(3)

$

$

60  $
60 
51 
48 
47 
133 
399  $

18  $
18 
18 
18 
18 
5 
95  $

5 
5 
5 
5 
5 
31 
56 

(1) The Company has committed to transport gross quantities of crude oil on various pipelines under a variety of contracts including throughput and take-
or-pay agreements. The Company’s failure to purchase the minimum level of quantities would require it to pay shortfall fees up to the amount of the
original monthly commitment amounts included in the table above.

(2) The Company has committed to purchase minimum quantities of sand for use in its drilling operations. Our failure to purchase the minimum level of

quantities would require us to pay shortfall fees up to the commitment amounts included in the table above.

(3) Rattler entered into a minimum volume commitment to purchase produced water disposal services under a 14 year agreement beginning in 2021.

At December 31, 2020, the Company’s delivery commitments covered the following gross volumes of oil:

Year Ending December 31,

Oil Volume Commitments
(Bbl/d)

2021
2022
2023
2024
2025
Thereafter

Total

F-44

175,000
175,000
175,000
125,000
125,000
400,000
1,175,000

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

As of December 31, 2020, Rattler’s anticipated future capital commitments for its equity method investments total $72 million in the aggregate.
The timing of when capital commitments will be requested can vary, but at December 31, 2020, approximately $57 million of the remaining commitment is
expected to be funded in 2021, $7 million in 2022 and $8 million in 2023.

18.    SUBSEQUENT EVENTS

Announced Acquisition of QEP Resources

    On December 21, 2020, the Company announced a definitive agreement to acquire QEP Resources Inc. (“QEP”) in an all-stock transaction valued at
$2.2 billion including QEP’s net debt of $1.6 billion as of September 30, 2020 based upon closing share prices on October 16, 2020. The consideration will
consist of 0.050 shares of Diamondback common stock for each share of QEP common stock, representing an implied value to each QEP stockholder of
$2.29  per  share  based  on  the  closing  price  of  Diamondback  common  stock  on  December  18,  2020.  The  transaction  was  unanimously  approved  by  the
Board of Directors of each company. The transaction is anticipated to close shortly following the special meeting of QEP Stockholders, which is scheduled
for March 16, 2021, subject to QEP stockholder approval and other customary closing conditions. See Item 1A. “Risk Factors” for further discussion of
risks related to the QEP acquisition.

Announced Acquisition of Guidon Operating LLC

On December 21, 2020, the Company announced a definitive purchase agreement to acquire all leasehold interests and related assets of Guidon
Operating LLC (“Guidon”) in exchange for 10.6 million shares of Diamondback common stock and $375 million of cash. In accordance with the terms of
the purchase agreement, the Company deposited $50 million into an escrow account in December 2020, which will be released to Guidon upon the closing
of  the  transaction.  The  cash  portion  of  this  transaction  is  expected  to  be  funded  through  a  combination  of  cash  on  hand  and  borrowings  under  the
Company’s credit facility. The transaction is anticipated to close on February 26, 2021.

Fourth Quarter 2020 Dividend Declaration

On  February  18,  2021,  the  Board  of  Directors  of  the  Company  declared  a  cash  dividend  for  the  fourth  quarter  of  2020  of  $0.40  per  share  of

common stock, payable on March 11, 2021 to its stockholders of record at the close of business on March 4, 2021.

F-45

Table of Contents

Commodity Contracts

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Subsequent  to  December  31,  2020,  the  Company  entered  into  new  fixed  price  swaps  and  basis  swaps,  costless  collars  and  roll  hedges.  The
Company’s derivative contracts are based upon reported settlement prices on commodity exchanges noted in the table below. When aggregating multiple
contracts,  the  weighted  average  contract  price  is  disclosed.  The  following  table  presents  the  derivative  contracts  entered  into  by  the  Company  between
January 1, 2021 and February 19, 2021:

Settlement
Month

OIL

Settlement Year

Type of Contract

Bbls/Mmbtu
Per Day

Index

Swaps

Collars

Weighted
Average
Differential

Weighted
Average Fixed
Price

Weighted
Average
Floor Price

Weighted
Average
Ceiling Price

2021
2021
2021
2021
2021
2021
2021
2021
2021
2022
2022

July - Sep.
Oct. - Dec.
July - Sep.
Apr. - Sep.
Oct. - Dec.
Mar. - Dec.
Mar. - Dec.
Jan. - June
July - Dec.
Jan. - Mar.
Apr. - Dec.
NATURAL GAS
Apr. - Dec.
Jan. - Dec.

2021
2022
NATURAL GAS LIQUIDS
2021

Feb. - Dec.

Costless Collar
Costless Collar
Costless Collar
Costless Collar
Costless Collar
(2)
Roll Hedge
Swap
Basis Swap
Basis Swap
Costless Collar
Costless Collar

Basis Swap
Basis Swap

2,000
9,000
5,000
2,000
4,000
25,000
20,000
15,000
18,000
18,000
2,000

20,000
30,000

WTI
WTI
WTI Houston Argus
IPE Brent
IPE Brent
WTI
Henry Hub
WTI Midland
WTI Midland
IPE Brent
IPE Brent

(1)

(1)

Waha Hub
Waha Hub

(1)

(1)

$—
$—
$—
$—
$—
$0.32
$—
$0.95
$0.93
$—
$—

$(0.255)
$(0.34)

$—
$—
$—
$—
$—
$—
$2.95
$—
$—
$—
$—

$—
$—

Swap

84,000

Mont Belvieu

$—

$0.70

$45.00
$45.00
$45.00
$45.00
$45.00
$—
$—
$—
$—
$45.00
$45.00

$—
$—

$—

$52.30
$59.22
$57.90
$57.72
$60.64
$—
$—
$—
$—
$61.35
$60.00

$—
$—

$—

(1) The Company has fixed price basis swaps for the spread between the WTI Midland crude oil price and the NYMEX WTI crude oil price as well as the
spread between the Waha Hub natural gas price and the Henry Hub natural gas price. The weighted average differential represents the amount of reduction
to Cushing, Oklahoma oil price and the Waha Hub natural gas price for the notional volumes covered by the basis swap contracts.
(2)  The  Company  has  rolling  hedge  basis  swaps  for  the  differential  between  the  NYMEX  prices  between  the  calendar  month  average  and  the  physical
crude oil delivery month. The weighted average differential represents the amount of reduction to Cushing, Oklahoma oil price for the notional volumes
covered by the rolling hedge basis swap contracts.

Interest Rate Swaps

The following table presents the interest rate swap contracts terminated by the Company between January 1, 2021 and February 19, 2021:

Type

Effective Date

Contractual Termination Date

Notional Amount (in
millions)

Interest Rate

Interest Rate Swap
Interest Rate Swap

December 31, 2024
December 31, 2024

December 31, 2054 $
December 31, 2054 $

250 
250 

1.8361 %
1.852 %

F-46

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

19.    SEGMENT INFORMATION

The  Company  reports  its  operations  in  two  operating  segments:  (i)  the  upstream  segment,  which  is  engaged  in  the  acquisition,  development,
exploration and exploitation of unconventional, onshore oil and natural gas reserves primarily in the Permian Basin in West Texas and (ii) the midstream
operations segment, which includes midstream services and real estate operations. All of the Company’s equity method investments are included in the
midstream  operations  segment.  The  segments  comprise  the  structure  used  by  its  Chief  Operating  Decision  Maker  (“CODM”)  to  make  key  operating
decisions and assess performance.

The following tables summarize the results of the Company's operating segments during the periods presented:

Year Ended December 31, 2020:
Third-party revenues
Intersegment revenues
Total revenues

Lease operating expenses
Depreciation, depletion and amortization
Impairment of oil and natural gas properties
Income (loss) from operations
Interest expense, net
Other income (expense)
Provision for (benefit from) income taxes
Net income (loss) attributable to non-controlling interest
Net income (loss) attributable to Diamondback Energy, Inc.
Total assets

Year Ended December 31, 2019:
Third-party revenues
Intersegment revenues
Total revenues

Lease operating expenses
Depreciation, depletion and amortization
Impairment of oil and natural gas properties
Income (loss) from operations
Interest expense, net
Other income (expense)
Provision for (benefit from) income taxes
Net income (loss) attributable to non-controlling interest
Net income (loss) attributable to Diamondback Energy, Inc.
Total assets

Upstream

Midstream
Operations

Eliminations

Total

(in millions)

2,756  $
— 
2,756  $
425  $
1,251  $
6,021  $
(5,562) $
(180) $
(87) $
(1,114) $
(190) $
(4,525) $
16,128  $

57  $
367 
424  $
—  $
53  $
—  $
182  $
(17) $
(10) $
10  $
35  $
110  $
1,809  $

—  $

(367)
(367) $
—  $
—  $
—  $
(96) $
—  $
(6) $
—  $
—  $
(102) $
(318) $

2,813 
— 
2,813 
425 
1,304 
6,021 
(5,476)
(197)
(103)
(1,104)
(155)
(4,517)
17,619 

Upstream

Midstream
Operations

Eliminations

Total

(in millions)

3,891  $
— 
3,891  $
490  $
1,405  $
790  $
790  $
(171) $
(149) $
21  $
75  $
374  $
22,125  $

73  $
375 
448  $
—  $
42  $
—  $
219  $
(1) $
(6) $
26  $
91  $
95  $
1,636  $

—  $

(375)
(375) $
—  $
—  $
—  $
(314) $
—  $
(6) $
—  $
(91) $
(229) $
(230) $

3,964 
— 
3,964 
490 
1,447 
790 
695 
(172)
(161)
47 
75 
240 
23,531 

$

$
$
$
$
$
$
$
$
$
$
$

$

$
$
$
$
$
$
$
$
$
$
$

F-47

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Year Ended December 31, 2018:
Third-party revenues
Intersegment revenues
Total revenues

Lease operating expenses
Depreciation, depletion and amortization
Income (loss) from operations
Interest expense, net
Other income (expense)
Provision for (benefit from) income taxes
Net income (loss) attributable to non-controlling interest
Net income (loss) attributable to Diamondback Energy, Inc.
Total assets

Upstream

Midstream
Operations

Eliminations

Total

(in millions)

$

$
$
$
$
$
$
$
$
$
$

2,132  $
— 
2,132  $
205  $
598  $
1,071  $
(87) $
189  $
151  $
99  $
923  $
21,096  $

44  $
140 
184  $
—  $
25  $
80  $
—  $
—  $
17  $
—  $
63  $
604  $

—  $

(140)
(140) $
—  $
—  $
(140) $
—  $
—  $
—  $
—  $
(140) $
(104) $

2,176 
— 
2,176 
205 
623 
1,011 
(87)
189 
168 
99 
846 
21,596 

20. SUPPLEMENTAL INFORMATION ON OIL AND NATURAL GAS OPERATIONS (Unaudited)

The Company’s oil and natural gas reserves are attributable solely to properties within the United States.

Capitalized oil and natural gas costs

Aggregate capitalized costs related to oil and natural gas production activities with applicable accumulated depreciation, depletion, amortization

and impairment are as follows:

Oil and natural gas properties:
Proved properties
Unproved properties
Total oil and natural gas properties
Accumulated depletion
Accumulated impairment

Net oil and natural gas properties capitalized

F-48

December 31,

2020

2019

(In millions)

$

$

19,884  $
7,493 
27,377 
(4,237)
(7,954)
15,186  $

16,575 
9,207 
25,782 
(2,995)
(1,934)
20,853 

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

Costs incurred in oil and natural gas activities

Costs incurred in oil and natural gas property acquisition, exploration and development activities are as follows:

Acquisition costs:

Proved properties
Unproved properties

Development costs
Exploration costs

Total

2020

Year Ended December 31,
2019
(In millions)

2018

$

$

13  $
106 
381 
1,098 
1,598  $

194  $
418 
956 
1,915 
3,483  $

5,665 
5,818 
493 
1,090 
13,066 

Results of Operations from Oil and Natural Gas Producing Activities

For revenues and expenses related to the production and sale of oil, natural gas and natural gas liquids, see the results of the Company's upstream

business segment in Note 19—Segment Information.

Oil and Natural Gas Reserves

Proved oil and natural gas reserve estimates as of December 31, 2020, 2019 and 2018 were prepared by Ryder Scott Company, L.P., independent
petroleum  engineers.  Proved  reserves  were  estimated  in  accordance  with  guidelines  established  by  the  SEC,  which  require  that  reserve  estimates  be
prepared under existing economic and operating conditions based upon the 12-month unweighted average of the first-day-of-the-month prices.

There are numerous uncertainties inherent in estimating quantities of proved oil and natural gas reserves. Oil and natural gas reserve engineering is
a subjective process of estimating underground accumulations of oil and natural gas that cannot be precisely measured and the accuracy of any reserve
estimate  is  a  function  of  the  quality  of  available  data  and  of  engineering  and  geological  interpretation  and  judgment.  Results  of  drilling,  testing  and
production  subsequent  to  the  date  of  the  estimate  may  justify  revision  of  such  estimate.  Accordingly,  reserve  estimates  are  often  different  from  the
quantities of oil and natural gas that are ultimately recovered.

F-49

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

The changes in estimated proved reserves are as follows:

Proved Developed and Undeveloped Reserves:
As of December 31, 2017

Extensions and discoveries
Revisions of previous estimates
Purchase of reserves in place
Divestitures
Production
As of December 31, 2018

Extensions and discoveries
Revisions of previous estimates
Purchase of reserves in place
Divestitures
Production
As of December 31, 2019

Extensions and discoveries
Revisions of previous estimates
Purchase of reserves in place
Divestitures
Production

As of December 31, 2020

Proved Developed Reserves:

December 31, 2017
December 31, 2018
December 31, 2019
December 31, 2020

Proved Undeveloped Reserves:
December 31, 2017
December 31, 2018
December 31, 2019
December 31, 2020

Oil
(MBbls)

Natural Gas
Liquids
(MBbls)

Natural Gas
(MMcf)

233,181 
143,256 
3,689 
281,333 
(156)
(34,367)
626,936 
256,569 
(84,789)
13,974 
(33,269)
(68,518)
710,903 
191,009 
(78,244)
2,124 
(209)
(66,182)
759,401 

141,246 
403,051 
457,083 
443,464 

91,935 
223,885 
253,820 
315,937 

54,609 
33,152 
11,138 
98,865 
(8)
(7,465)
190,291 
66,572 
(8,166)
3,813 
(3,809)
(18,498)
230,203 
58,410 
21,927 
778 
(141)
(21,981)
289,196 

35,412 
125,509 
165,173 
192,495 

19,198 
64,782 
65,030 
96,701 

285,369 
154,088 
3,642 
640,761 
(543)
(34,668)
1,048,649 
318,874 
(149,657)
19,830 
(21,272)
(97,613)
1,118,811 
316,035 
300,160 
3,512 
(905)
(130,549)
1,607,064 

190,740 
705,084 
824,760 
1,085,035 

94,629 
343,565 
294,051 
522,029 

Revisions represent changes in previous reserves estimates, either upward or downward, resulting from new information normally obtained from
development drilling and production history or resulting from a change in economic factors, such as commodity prices, operating costs or development
costs.

During the year ended December 31, 2020, the Company’s extensions and discoveries of 302,092 MBOE resulted primarily from the drilling of
682 new wells and from 298 new proved undeveloped locations added. Viper royalty interests accounted for 8% of the extension volumes. The Company’s
downward revisions of previous estimates of 6,290 MBOE were the result of negative revisions due to lower product pricing of 54,645 MBOE, which were
partially offset by positive revisions of 23,066 MBOE associated with a reduction in lease operating expenses, resulting in a total negative pricing revision
of 31,579 MBOE. Downgrades of 31,074 MBOE are primarily from changes in the corporate development plan. These revisions were offset by positive
performance revisions of 56,362 MBOE associated with less gas flaring and a corresponding increase in natural gas liquid recoveries.

F-50

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

During the year ended December 31, 2019, the Company’s extensions and discoveries totaling 376,287 MBOE resulted primarily from the drilling
of  283  new  wells  and  from  291  new  proved  undeveloped  locations  added.  Viper  royalty  interests  accounted  for  5%  of  the  extension  volumes.  The
Company’s downward revisions of 117,898 MBOE were the result of proved undeveloped downgrades associated with inventory refinement following the
Energen  acquisition  along  with  updated  development  plans  and  lower  realized  prices.  Purchases  of  21,092  MBOE  were  the  result  of  10,939  MBOE  of
working interest purchases and 10,153 MBOE of Viper royalty purchases, excluding mineral interests dropped down to Viper.

During the year ended December 31, 2018, the Company’s extensions and discoveries of 202,089 MBOE resulted primarily from the drilling of
135 new wells and from 138 new proved undeveloped locations added in which the Company owns a working interest. Viper royalty interests accounted
for 10% of the extension volumes. The Company’s revisions of previous estimates were primarily the result of positive technical and performance revisions
of 14,218 MBOE, upward revisions of 6,032 MBOE due to higher pricing and downward revisions of 4,815 MBOE from PUD reclassifications due to
timing. Purchases of 486,992 MBOE were the result of 477,686 MBOE of working interest purchases, primarily attributable to Energen, and 9,306 MBOE
of Viper royalty purchases.

At December 31, 2020, the Company’s estimated PUD reserves were approximately 499,643 MBOE, a 131,784 MBOE increase over the reserve

estimate at December 31, 2019 of 367,859 MBOE. The following table includes the changes in PUD reserves for 2020 (MBOE):

Beginning proved undeveloped reserves at December 31, 2019
Undeveloped reserves transferred to developed
Revisions
Purchases
Divestitures
Extensions and discoveries

Ending proved undeveloped reserves at December 31, 2020

367,859 
(89,133)
(15,742)
964 
(14)
235,709 
499,643 

The increase in proved undeveloped reserves was primarily attributable to extensions of 220,023 MBOE from 277 gross (236 net) wells in which
the Company has a working interest and 15,686 MBOE from 299 gross wells in which Viper owns royalty interests. Of the 277 gross working interest
wells, 98 were in the Delaware Basin. Transfers of 89,133 MBOE were the result of drilling or participating in 102 gross (94 net) horizontal wells in which
the Company has a working interest and 82 gross wells in which the Company has a royalty interest or mineral interest through Viper. The Company owns
a working interest in 78 of the 82 gross Viper wells. Downward revisions of 15,742 MBOE were the result of (i) negative revisions of 4,226 MBOE due to
lower product pricing, which were partially offset by positive revisions of 1,494 MBOE associated with a reduction in lease operating expenses, resulting
in a total negative pricing revision of 2,732 MBOE, and (ii) PUD downgrades of 26,329 MBOE primarily from changes in the corporate development plan.
These revisions were offset with positive performance revisions of 13,319 MBOE associated with less gas flaring and a corresponding increase in shrunk
gas and natural gas liquid recoveries.

As of December 31, 2020, all of the Company’s proved undeveloped reserves are planned to be developed within five years from the date they
were initially recorded. During 2020, approximately $381 million in capital expenditures went toward the development of proved undeveloped reserves,
which includes drilling, completion and other facility costs associated with developing proved undeveloped wells.

Standardized Measure of Discounted Future Net Cash Flows

The standardized measure of discounted future net cash flows is based on the unweighted average, first-day-of-the-month price. The projections
should not be viewed as realistic estimates of future cash flows, nor should the “standardized measure” be interpreted as representing current value to the
Company. Material revisions to estimates of proved reserves may occur in the future; development and production of the reserves may not occur in the
periods assumed; actual prices realized are expected to vary significantly from those used; and actual costs may vary.

F-51

Table of Contents

Diamondback Energy, Inc. and Subsidiaries
Notes to Consolidated Financial Statements-(Continued)

The following table sets forth the standardized measure of discounted future net cash flows attributable to the Company’s proved oil and natural

gas reserves as of December 31, 2020, 2019 and 2018.

Future cash inflows
Future development costs
Future production costs
Future production taxes
Future income tax expenses
Future net cash flows
10% discount to reflect timing of cash flows

Standardized measure of discounted future net cash flows

(1)

2020

December 31,
2019
(In millions)

2018

$

$

32,173  $
(3,585)
(10,763)
(2,354)
(727)
14,744 
(7,986)
6,758  $

40,681  $
(3,809)
(9,319)
(2,905)
(2,635)
22,013 
(11,829)
10,184  $

43,578 
(3,560)
(7,727)
(2,935)
(3,913)
25,443 
(13,767)
11,676 

(1) Includes $1.0 billion, $1.3 billion, and $1.1 billion, for the years ended December 31, 2020, 2019 and 2018, respectively, attributable to the Company’s
consolidated subsidiary, Viper, in which there is a 42% non-controlling interest at December 31, 2020.

The table below presents the unweighted arithmetic average first-day-of–the-month price for oil, natural gas and natural gas liquids utilized in the

computation of future cash inflows.

Oil (per Bbl)
Natural gas (per Mcf)
Natural gas liquids (per Bbl)

2020

December 31,
2019

$
$
$

38.06  $
0.09  $
10.83  $

51.88  $
0.18  $
15.65  $

2018

59.63 
1.47 
24.43 

Principal changes in the standardized measure of discounted future net cash flows attributable to the Company’s proved reserves are as follows:

Standardized measure of discounted future net cash flows at the beginning of the period
Sales of oil and natural gas, net of production costs
Acquisitions of reserves
Divestitures of reserves
Extensions and discoveries, net of future development costs
Previously estimated development costs incurred during the period
Net changes in prices and production costs
Changes in estimated future development costs
Revisions of previous quantity estimates
Accretion of discount
Net change in income taxes
Net changes in timing of production and other

Standardized measure of discounted future net cash flows at the end of the period

$

$

F-52

2020

Year Ended December 31,
2019
(In millions)

2018

10,184  $
(2,225)
30 
(4)
1,514 
704 
(5,273)
526 
(462)
1,126 
807 
(169)
6,758  $

11,676  $
(3,334)
309 
(500)
4,004 
120 
831 
(3,190)
(1,242)
1,344 
693 
(527)
10,184  $

3,757 
(1,786)
5,520 
(2)
3,287 
535 
1,805 
(81)
271 
380 
(1,728)
(282)
11,676 

Exhibit 10.4

Restricted Stock Unit Award (#) O-RSU21-___

DIAMONDBACK ENERGY, INC.
2019 AMENDED AND RESTATED EQUITY INCENTIVE PLAN
RESTRICTED STOCK UNIT AWARD CERTIFICATE

THIS  IS  TO  CERTIFY  that  Diamondback  Energy,  Inc.,  a  Delaware  corporation  (the  “Company”),  has  granted  you
(“Participant”) time-based Restricted Stock Units under the Company’s 2019 Amended and Restated Equity Incentive Plan (the
“Plan”), as set forth below. Capitalized terms not otherwise defined herein have the meanings ascribed to them in the Plan.

Name of Participant:

________________

Total Number of Restricted
Stock Units Granted:

Date of Grant:

Vesting Schedule and
Payment/Settlement Dates:

_____________

________, 2021

Shares of Common Stock will vest on the Vesting Dates specified below and
will be settled within 10 business days after each Vesting Date specified below
(the date of such settlements, the “Payment/Settlement Dates”).

Vesting Date
________
________
________

# Vested Shares
_______
_______
_______

By your signature and the signature of the Company’s representative below, you and the Company agree to be bound by
all  of  the  terms  and  conditions  of  the  Restricted  Stock  Unit  Award  Agreement  attached  hereto  as  Annex I,  and  the  Plan  (both
incorporated herein by this reference as if set forth in full in this document). By executing this Certificate, you hereby irrevocably
elect to accept the Restricted Stock Unit rights granted pursuant to this Certificate and the related Restricted Stock Unit Award
Agreement and to receive the Restricted Stock Units designated above subject to the terms of the Plan, this Certificate, and the
Restricted Stock Unit Award Agreement.

In  lieu  of  receiving  documents  in  paper  format,  by  signing  below  you  agree,  to  the  fullest  extent  permitted  by  law,  to
accept  electronic  delivery  of  any  documents  that  the  Company  may  be  required  to  deliver  (including,  without  limitation,
prospectuses,  prospectus  supplements,  grant  or  award  notifications  and  agreements,  account  statements,  annual  and  quarterly
reports, and all other forms of communications) in connection with this and any other award made or offered by the Company.
Electronic delivery may be via an electronic mail system of the Company or by reference to a location on a Company intranet to
which  you  have  access.  You  hereby  consent  to  any  and  all  procedures  the  Company  has  established  or  may  establish  for  an
electronic signature system for delivery and acceptance of any such documents that the Company may be required to deliver, and
agree that your electronic signature is the same as, and shall have the same force and effect as, your manual signature.

Diamondback Energy, Inc. Restricted Stock Unit Award Certificate

PARTICIPANT

DIAMONDBACK ENERGY, INC.

By:______________________________________    

By:___________________________________________    

[Name]
Dated: _____ __, 2021

Travis D. Stice, Chief Executive Officer
Dated: _____ __, 2021

    Diamondback Energy, Inc. Restricted Stock Unit Award Certificate
Page 2

Annex I

DIAMONDBACK ENERGY, INC.
2019 AMENDED AND RESTATED EQUITY INCENTIVE PLAN
RESTRICTED STOCK UNIT AWARD AGREEMENT

This Restricted Stock Unit Award Agreement (this “Agreement”), is made and entered into on the execution date of the
Restricted Stock Unit Award Certificate to which it is attached (the “Certificate”), by and between Diamondback Energy, Inc., a
Delaware corporation (the “Company”), and the Participant named in the Certificate (“Participant”).

Pursuant  to  the  Diamondback  Energy,  Inc.  2019  Amended  and  Restated  Equity  Incentive  Plan  (the  “Plan”),  the
Administrator  has  authorized  the  grant  to  Participant  of  the  number  of  Restricted  Stock  Units  set  forth  in  the  Certificate  (the
“Award”),  upon  the  terms  and  subject  to  the  conditions  set  forth  in  this  Agreement  and  in  the  Plan.  Capitalized  terms  not
otherwise defined herein have the meanings ascribed to them in the Plan or in the Certificate, as applicable.

NOW, THEREFORE, in consideration of the premises and the benefits to be derived from the mutual observance of the
covenants  and  promises  contained  herein  and  other  good  and  valuable  consideration,  the  sufficiency  of  which  is  hereby
acknowledged, the parties hereto agree as follows:

1.    Basis for Award. This Award is made pursuant to Section 7(a) of the Plan for valid consideration provided to the
Company  by  Participant.  By  Participant’s  execution  of  the  Certificate,  Participant  agrees  to  accept  the  Award  rights  granted
pursuant to the Certificate and this Agreement, and to receive the Restricted Stock Units designated in the Certificate subject to
the terms of the Plan, the Certificate, and this Agreement.

2.    Restricted Stock Units Awarded.

2.1    The Company hereby grants to Participant the number of Restricted Stock Units set forth in the Certificate.
Each Restricted Stock Unit represents a right to receive one share of Common Stock from the Company payable in accordance
with  Section  5  below  and  any  Dividend  Equivalents  (as  defined  below)  credited  to  the  Participant’s  Restricted  Stock  Unit
Account (as defined below) with respect to that share.

2.2    The Company will, in accordance with the Plan, establish and maintain an account (the “Restricted  Stock
Unit Account”) for Participant, and will credit such account for the number of Restricted Stock Units granted to Participant and
any Dividend Equivalents as provided in Section 4 below. On any given date, the value of each Restricted Stock Unit will equal
the Fair Market Value on such date of one share of Common Stock.

    Annex I
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement

3.    Vesting.

3.1    The Restricted Stock Units will vest pursuant to the Vesting Schedule set forth in the Certificate. Except as
otherwise  provided  in  a  severance  plan  participation  agreement  between  the  Participant  and  the  Company  or  an  Affiliate  (a
“Severance  Agreement”)  or  as  provided  in  Sections  3.2,  3.3  or  3.4  below,  if  Participant  ceases  Continuous  Service  for  any
reason,  Participant  will  immediately  forfeit  the  unvested  Restricted  Stock  Units  and  any  securities,  other  property  or  amounts
nominally  credited  to  the  Restricted  Stock  Unit  Account,  including  any  Dividend  Equivalents  credited  to  the  Restricted  Stock
Unit Account that have not been settled or paid.

3.2        Except  as  otherwise  provided  in  a  Severance  Agreement,  in  the  event  of  a  termination  of  Participant’s
Continuous  Service  (a)  by  the  Company  or  an  Affiliate  other  than  for  Cause  (and  not  as  a  result  of  Participant’s  death  or
Disability)  or  (b)  as  a  result  of  Participant’s  resignation  for  Good  Reason  (as  defined  for  purposes  of  the  Company’s  Senior
Management Severance Plan), in either case, upon the consummation of or within 24 months after the occurrence of a Change in
Control, (an “Acceleration Event”), the unvested Restricted Stock Units, including any unpaid Dividend Equivalents credited to
the Restricted Stock Unit Account, will vest immediately upon the occurrence of an Acceleration Event.

3.3        Except  as  otherwise  provided  in  a  Severance  Agreement,  upon  a  termination  of  Participant’s  Continuous
Service  as  a  result  of  Participant’s  death  or  Disability,  the  unvested  Restricted  Stock  Units,  including  any  unpaid  Dividend
Equivalents credited to the Restricted Stock Unit Account, will become 100% vested and will be settled and paid in full within 10
business days following the date of vesting.

3.4        To  the  extent  that  a  Severance  Agreement  provides  for  acceleration  of  vesting  of  any  or  all  unvested
Restricted  Stock  Units  on  termination  of  Continuous  Service  that  is  more  favorable  to  Participant  than  the  provisions  of  this
Agreement, such provisions are incorporated by reference in this Agreement.

4.        Dividend Equivalents. If  the  Company  pays  any  cash  dividend  on  its  outstanding  Common  Stock  for  which  the
record  date  occurs  after  the  Date  of  Grant,  the  Administrator  will  credit  the  Restricted  Stock  Unit  Account  as  of  the  dividend
payment date in an amount equal to the amount of the dividend paid by the Company on a single Share multiplied by the number
of  Restricted  Stock  Units  under  this  Agreement  that  are  unvested  as  of  that  record  date  and  that  are  vested  but  have  not  been
settled  under  the  payment  terms  of  Section  5  (“Dividend Equivalents”). Except  as  otherwise  provided  in  Section  3,  Dividend
Equivalents  will  vest  and  be  paid  to  the  Participant  on  the  dividend  payment  date  if  Participant  is  in  Continuous  Service  or
otherwise holds vested but have not been settled Restricted Stock Units on the dividend payment date declared by the Company.

5.        Payment/Settlement.  Subject  to  Participant’s  satisfaction  of  the  applicable  withholding  requirements  pursuant  to
Section  7  hereof,  the  Company  will  settle  the  Award  on  the  Payment/Settlement  Date  or  Dates  set  forth  in  the  Certificate  by
issuing to Participant one share of Common Stock for each Restricted Stock Unit payable on such Payment/Settlement Date (and

    Annex I
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 2

upon such settlement, the Restricted Stock Units will cease to be credited to the Restricted Stock Unit Account). If the Certificate
does not specify a Payment/Settlement Date, the applicable Payment/Settlement Date will be within 10 business days after each
vesting date set forth in the Vesting Schedule. If an Acceleration Event occurs, the Payment/Settlement Date will be within 10
business days after the date the Acceleration Event occurs. The Administrator will enter Participant’s name as a stockholder of
record with respect to such shares of Common Stock on the books of the Company with respect to the shares of Common Stock
issued  on  the  applicable  Payment/Settlement  Date  free  of  all  restrictions  hereunder,  except  for  applicable  federal  and  state
securities law restrictions. Participant acknowledges and agrees that shares of Common Stock may be issued in electronic form as
a book entry with the Company’s transfer agent and that no physical certificates need be issued. Any securities, other property or
amounts nominally credited to the Restricted Stock Unit Account other than Restricted Stock Units will be paid in kind or, in the
Administrator’s discretion, in cash.

6.        Compliance  with  Laws  and  Regulations.  The  issuance  and  transfer  of  shares  of  Common  Stock  on  any
Payment/Settlement Date will be subject to the Company’s and Participant’s full compliance, to the satisfaction of the Company
and its counsel, with all applicable requirements of federal, state, and foreign securities laws and with all applicable requirements
of  any  securities  exchange  on  which  the  Common  Stock  may  be  listed  at  the  time  of  such  issuance  or  transfer.  Participant
understands that the Company is under no obligation to register or qualify the shares of Common Stock with the U.S. Securities
and  Exchange  Commission  (“SEC”),  any  state  securities  commission,  foreign  securities  regulatory  authority,  or  any  securities
exchange to effect such compliance.

7.    Tax Withholding.

7.1        As  a  condition  to  payment  under  Section  5  hereof,  Participant  agrees  that  on  or  before  the
Payment/Settlement Date or such other date as required by the Administrator, Participant will pay to the Company any federal,
state, or local taxes required by law to be withheld with respect to the Restricted Stock Units for which the restrictions lapse and
any related securities, other property or amounts then nominally credited to the Restricted Stock Unit Account.

7.2    Participant will pay the amounts due under this Section 7 to the Company by Stock Withholding or may be
paid,  at  Participant’s  election,  in  cash,  or  (to  the  extent  any  applicable  insider  trading  policy,  window  or  restriction  does  not
prohibit Participant from engaging in a sale transaction) by tendering shares of Common Stock held by Participant to a broker
selected  by  the  Company  for  immediate  sale  and  remittance  of  proceeds  equal  to  the  required  withholding  amount  to  the
Company,  including  shares  that  otherwise  would  be  issued  and  transferred  to  Participant  as  payment  on  the  applicable
Payment/Settlement  Date,  with  a  Fair  Market  Value  on  that  Payment/Settlement  Date  that  does  not  exceed  the  maximum
statutory  tax  rates  in  the  applicable  jurisdictions  (subject  to  Participant’s  written  request  to  withhold  more  than  the  minimum
required tax withholding in the applicable jurisdictions), or a combination of cash and shares of Common Stock. If  Participant
fails to make such payments, the Company or its Affiliates will, to the extent permitted by law, have the right to deduct from any
payment of any

    Annex I
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 3

kind otherwise due to Participant any federal, state, or local taxes required by law to be withheld with respect to such payment.
Dividend Equivalents credited to the Restricted Stock Unit Account will be subject to withholding at the time of payment.

8.    Not Transferrable. Until Common Stock is issued on the applicable Payment/Settlement Date, the Restricted Stock
Units, any related Dividend Equivalents credited to the Restricted Stock Unit Account and any related securities, other property
or amounts nominally credited to the Restricted Stock Unit Account may not be sold, transferred, or otherwise disposed of, and
may not be pledged or otherwise hypothecated other than by will or by the applicable laws of descent and distribution, provided
that the Restricted Stock Units and any related Dividend Equivalents credited to the Restricted Stock Unit Account will remain
subject to the terms of the Plan, the Certificate and this Agreement.

9.    No Right to Continued Service. Nothing in this Agreement or in the Plan imposes or may be deemed to impose, by
implication  or  otherwise,  any  limitation  on  any  right  of  the  Company  or  any  Affiliate  to  terminate  Participant’s  Continuous
Service at any time.

10.        Participant’s  Representations  and  Warranties.  Participant  represents  and  warrants  to  the  Company  that
Participant has received a copy of the Plan, has read and understands the terms of the Plan, the Certificate, and this Agreement,
and  agrees to be bound  by  their  terms  and  conditions. Participant  acknowledges  that  there  may  be  tax  consequences  upon  the
payment of the Restricted Stock Units, disposition of any shares of Common Stock received on a Payment/Settlement Date or
payment  of  any  Dividend  Equivalents  credited  to  the  Restricted  Stock  Unit  Account,  and  that  Participant  should  consult  a  tax
advisor before such time. Participant agrees to sign such additional documentation as the Company may reasonably require from
time to time. Participant acknowledges that he or she is aware that copies of the Plan and the Company’s financial statements and
information filed by the Company with the SEC are available upon request to the Company, at the SEC’s Public Reference Room
at  100  F  Street,  N.E.,  Room  1580,  Washington,  D.C.  20549  or  by  visiting  the  SEC  Internet  site  at  http://www.sec.gov  that
contains  reports,  proxy  and  information  statements  and  other  information  regarding  registrants  that  file  electronically  with  the
SEC.

11.    No Interest in Company Assets. All amounts nominally credited to Participant’s Restricted Stock Unit Account
under this Agreement will continue for all purposes to be part of the general assets of the Company. Participant’s interest in the
Restricted Stock Unit Account will make Participant only a general, unsecured creditor of the Company.

12.    No Stockholder Rights before Delivery. Participant will not have any right, title, or interest in, or be entitled to
vote  or  to  receive  distributions  in  respect  of,  or  otherwise  be  considered  the  owner  of,  any  of  the  shares  of  Common  Stock
covered  by  the  Restricted  Stock  Units  until  the  Payment/Settlement  Dates  specified  in  the  Certificate  at  which  such  shares  of
Common Stock are issued pursuant to Section 5 hereof.

13.    Modification. The Agreement may not be amended or otherwise modified except in writing signed by both parties.

    Annex I
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 4

14.    Interpretation. Any dispute regarding the interpretation of this Agreement must be submitted by Participant or the
Company to the Administrator for review. The resolution of such a dispute by the Administrator will be final and binding on the
Company and Participant.

15.        Entire  Agreement.  The  Plan  and  the  Certificate  are  incorporated  herein  by  reference.  This  Agreement,  the
Certificate, and the Plan constitute the entire agreement of the parties and supersede all prior undertakings and agreements with
respect to the subject matter hereof. If any inconsistency or conflict exists between the terms and conditions of this Agreement,
the Certificate and the Plan, the Plan will govern.

16.    Successors and Assigns. The Company may assign any of its rights under this Agreement. This Agreement will
bind and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth herein,
this  Agreement  is  binding  upon  Participant  and  Participant’s  heirs,  executors,  administrators,  legal  representatives,  successors,
and assigns.

17.    Governing Law. This Agreement will be governed by and construed in accordance with the laws of the State of
Delaware without giving effect to its conflict of law principles. If any provision of this Agreement is determined by a court of law
to be illegal or unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will
remain fully effective and enforceable.

    Annex I
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 5

Diamondback Energy, Inc. 2019 Amended and Restated Equity Incentive Plan

EXHIBIT A

    
Exhibit 10.5

Restricted Stock Unit Award (#) O-PSU21-___

DIAMONDBACK ENERGY, INC.

2019 AMENDED AND RESTATED EQUITY INCENTIVE PLAN
RESTRICTED STOCK UNIT AWARD CERTIFICATE

THIS  IS  TO  CERTIFY  that  Diamondback  Energy,  Inc.,  a  Delaware  corporation  (the  “Company”),  has  granted  you
(“Participant”)  performance-based  Restricted  Stock  Units  (this  “Performance  Award”)  under  the  Company’s  2019  Amended
and  Restated  Equity  Incentive  Plan  (the  “Plan”),  as  set  forth  below.  Capitalized  terms  not  otherwise  defined  herein  have  the
meanings ascribed to them in the Plan.

Name of Participant:

____________________

Target Number of Restricted
Stock Units Granted:
Date of Grant:
Payment/Settlement Dates:

Performance Period:
Performance Vesting Goals and
Schedule:

________

________, 2021
Fully  vested  Restricted  Stock  Units  will  be  settled  by  the  payment  of  shares  of
Common Stock within 10 business days after the date on which the Committee has
made the certification required under Section 7(b)(iv) of the Plan with respect to
the  performance  goals  applicable  to  such  Restricted  Stock  Units  (which  in  any
event will be no later than March 15 of the calendar year following the calendar
year in which the Performance Period ends).

January 1, 2021 through December 31, 2023
The actual number of Restricted Stock Units with respect to which Participant will
be  entitled  to  receive  shares  of  Common  Stock  will  equal  the  product  of  (i)  the
Target  Grant  Vesting  Percentage,  multiplied  by  (ii)  the  Target  Number  of
Restricted Stock Units Granted, multiplied by (iii) the Absolute TSR Modifier (as
defined in Annex I attached hereto). The  Target  Grant  Vesting  Percentage  will  be
determined based on the attainment of (i) Continuous Service through the last day
of  the  Performance  Period,  and  (ii)  achieving  the  Relative  Total  Stockholder
Return Percentile (as defined in Annex I attached hereto) and Company’s Absolute
Total Stockholder Return performance goals set forth below:

Diamondback Energy, Inc. Restricted Stock Unit Award Certificate

Relative Total Stockholder Return Percentile

1
Target Grant Vesting Percentage

Below 25  Percentile of Peer Group

th

0% of Target

th

Between 25  Percentile of Peer Group and up to
but less than 75  Percentile

th

Straight line interpolation between 50% and
150% of Target

At or above 75  Percentile of Peer Group

th

200% of Target

Company’s Absolute Total Stockholder Return

Absolute TSR Modifier

Below 0%
Between 0% to 15%
Above 15%

75%
100%
125%

By your signature and the signature of the Company’s representative below, you and the Company agree to be bound by
all of the terms and conditions of the Restricted Stock Unit Award Agreement attached hereto as Annex II, and the Plan (both
incorporated herein by this reference as if set forth in full in this document). By executing this Certificate, you hereby irrevocably
elect to accept the Restricted Stock Unit rights granted pursuant to this Certificate and the related Restricted Stock Unit Award
Agreement and to receive the Restricted Stock Units designated above subject to the terms of the Plan, this Certificate, and the
Restricted Stock Unit Award Agreement.

In  lieu  of  receiving  documents  in  paper  format,  by  signing  below  you  agree,  to  the  fullest  extent  permitted  by  law,  to
accept  electronic  delivery  of  any  documents  that  the  Company  may  be  required  to  deliver  (including,  without  limitation,
prospectuses,  prospectus  supplements,  grant  or  award  notifications  and  agreements,  account  statements,  annual  and  quarterly
reports, and all other forms of communications) in connection with this and any other award made or offered by the Company.
Electronic delivery may be via an electronic mail system of the Company or by reference to a location on a Company intranet to
which  you  have  access.  You  hereby  consent  to  any  and  all  procedures  the  Company  has  established  or  may  establish  for  an
electronic signature system for delivery and acceptance of any such documents that the Company may be required to deliver, and
agree that your electronic signature is the same as, and shall have the same force and effect as, your manual signature.

1
 Target Grant Vesting Percentage is expressed as a percentage of the Target Number of Restricted Stock Units Granted and, after being adjusted
by the Absolute TSR Modifier, may result in a settlement that is in excess of the Target Number of Restricted Stock Units Granted, up to a maximum grant
equal to 250% of the Target Number of Restricted Stock Units Granted. The Target Grant Vesting Percentage applicable to Restricted Stock Units earned
based on Relative Total Stockholder Return Percentile criteria will be interpolated on a straight line basis between 50% and 150% if actual performance is
at or above the 25  percentile but less than the 75  percentile.

th

th

Diamondback Energy, Inc. Restricted Stock Unit Award Certificate

PARTICIPANT

DIAMONDBACK ENERGY, INC.

__________________________________________
[Name]

By:___________________________________________
Travis D. Stice, Chief Executive Officer

Dated: ________, 2021

Dated: ________, 2021

Diamondback Energy, Inc. Restricted Stock Unit Award Certificate

Annex I

Definition of “Relative Total Stockholder Return Percentile”

For  purposes  of  this  Performance  Award,  “Relative  Total  Stockholder  Return  Percentile”  means  for  the  Performance
Period, the Total Stockholder Return (as defined below) of the Company in comparison to the Total Stockholder Return for each
of  the  companies  comprising  the  Peer  Group  (as  defined  below).  How  the  Company’s  Total  Stockholder  Return  ranks  by
percentile relative to the Total Stockholder Return of the other Peer Group companies determines whether the Restricted Stock
Unit Target Award vests and how many shares of Common Stock are paid out, as set forth in this Performance Award.

The  Company’s  percentile  ranking  among  the  Peer  Group  Total  Stockholder  Return  is  calculated  by  ranking  the

Company’s Total Stockholder Return as part of the Total Stockholder Return for the Peer Group as a whole.

“Total  Stockholder  Return”  for  the  Company  and  each  member  of  the  Peer  Group  is  determined  over  a  particular
measurement period by: dividing (1) the sum of (a) the cumulative value of dividends received during the measurement period,
assuming reinvestment, plus (b) the difference between the average share price for the five trading days ending with the last day
of  the  Performance  Period  compared  to  the  average  share  price  for  the  five  trading  days  ending  immediately  prior  to  the
beginning  of  the  Performance  Period;  by  (2)  the  average  share  price  for  the  five  trading  days  ending  immediately  prior  to  the
beginning  of  the  Performance  Period.  For  this  purpose,  we  assume  dividends  are  reinvested  in  stock  at  market  prices  at
approximately the same time actual dividends are paid. Stockholder return is quoted on an annualized basis. This is expressed as
a compound annual growth rate percentage calculated as TSR = (Pe – Pb + Dividends)/Pb where:

Pb  =  average  share  price  for  the  five  trading  days  ending  immediately  prior  to  the  beginning  of  the
Performance Period;

Pe = average share price for the five trading days ending with the last day of the Performance Period,

Dividends = dividends paid over the Performance Period; and

TSR = Total Stockholder Return.

The Company’s “Peer Group” consists of the following members:

(a)    each of the following companies: Apache Corporation (APA); Cimarex Energy Co. (XEC); Continental Resources,
Inc.  (CLR);  Devon  Energy  Corporation  (DVN);  EOG  Resources,  Inc.  (EOG);  Hess  Corporation  (HES);  Marathon  Oil
Corporation (MRO); Ovintiv Inc. (OVV); Pioneer Natural Resources Company (PXD);

(b)    the SPDR S&P Oil & Gas Exploration & Production ETF Index (XOP); and

(c)    the S&P 500 Index (SPX).

Annex I
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement

    
Definition of “Absolute TSR Modifier”

For  purposes  of  this  Performance  Award,  “Absolute  TSR  Modifier”  means  the  percentage  determined  for  the
Performance Period as specified in the schedule set forth above based on the Company’s absolute Total Stockholder Return for
the Performance Period.

    Annex I
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 2

Annex II

DIAMONDBACK ENERGY, INC.

2019 AMENDED AND RESTATED EQUITY INCENTIVE PLAN
RESTRICTED STOCK Unit AWARD AGREEMENT

This Restricted Stock Unit Award Agreement (this “Agreement”), is made and entered into on the execution date of the
Restricted Stock Unit Award Certificate to which it is attached (the “Certificate”), by and between Diamondback Energy, Inc., a
Delaware corporation (the “Company”), and the Participant named in the Certificate (“Participant”).

Pursuant  to  the  Diamondback  Energy,  Inc.  2019  Amended  and  Restated  Equity  Incentive  Plan  (the  “Plan”),  the
Administrator  has  authorized  the  grant  to  Participant  of  the  number  of  Restricted  Stock  Units  set  forth  in  the  Certificate  (the
“Award”),  upon  the  terms  and  subject  to  the  conditions  set  forth  in  this  Agreement  and  in  the  Plan.  Capitalized  terms  not
otherwise defined herein have the meanings ascribed to them in the Plan or in the Certificate, as applicable.

NOW, THEREFORE, in consideration of the premises and the benefits to be derived from the mutual observance of the
covenants  and  promises  contained  herein  and  other  good  and  valuable  consideration,  the  sufficiency  of  which  is  hereby
acknowledged, the parties hereto agree as follows:

1.    Basis for Award. This Award is made pursuant to Section 7(a) of the Plan for valid consideration provided to the
Company  by  Participant.  By  Participant’s  execution  of  the  Certificate,  Participant  agrees  to  accept  the  Award  rights  granted
pursuant to the Certificate and this Agreement, and to receive the Restricted Stock Units designated in the Certificate subject to
the terms of the Plan, the Certificate and this Agreement.

2.    Restricted Stock Units Awarded.

2.1        The  Company  hereby  grants  to  Participant  the  target  number  of  Restricted  Stock  Units  set  forth  in  the
Certificate. Each Restricted Stock Unit represents a right to receive one share of Common Stock from the Company payable in
accordance with Section 5 below and any Dividend Equivalents (as defined below) credited to the Participant’s Restricted Stock
Unit Account (as defined below) with respect to that share; provided, however, that depending on the level attained with respect
to the Performance Vesting Goals and Schedules set forth in the Certificate, the number of shares of Common Stock that may be
earned hereunder may range from 0% to 250% of the target number of Restricted Stock Units.

2.2    The Company will, in accordance with the Plan, establish and maintain an account (the “Restricted  Stock
Unit Account”) for Participant, and will credit such account for the target number of Restricted Stock Units granted to Participant
and any Dividend Equivalents as provided in Section 4 below. On any given date, the value of each Restricted Stock Unit will
equal the Fair Market Value on such date of one share of Common Stock.

Annex II
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 3

3.    Vesting.

3.1        The  Restricted  Stock  Units  will  vest  based  on  the  Target  Grant  Vesting  Percentage  as  adjusted  by  the
Absolute  TSR  Modifier,  in  each  case,  as  determined  under  the  Performance  Vesting  Goals  and  Schedules  set  forth  in  the
Certificate. Except as otherwise provided in a severance plan participation agreement between the Participant and the Company
or  an  Affiliate  (a  “Severance  Agreement”)  or  as  provided  in  Sections  3.2,  3.3  or  3.4  below,  if  Participant  ceases  Continuous
Service for any reason prior to the end of the Performance Period, Participant will immediately forfeit all the unvested Restricted
Stock Units and any securities, other property or amounts nominally credited to the Restricted Stock Unit Account, including any
Dividend Equivalents credited to the Restricted Stock Unit Account that have not been settled or paid.

3.2        Except  as  otherwise  provided  in  a  Severance  Agreement,  in  the  event  of  a  termination  of  Participant’s
Continuous  Service  (a)  by  the  Company  or  an  Affiliate  other  than  for  Cause  (and  not  as  a  result  of  Participant’s  death  or
Disability)  or  (b)  Participant’s  resignation  for  Good  Reason  (as  defined  for  purposes  of  the  Company’s  Senior  Management
Severance Plan), in either case, upon the consummation of or within 24 months after the occurrence of a Change in Control, (an
“Acceleration  Event”),  the  Relative  Total  Stockholder  Return  Percentile  and  Absolute  TSR  Modifier  used  to  determine  the
number of Restricted Stock Units that will become vested on the Acceleration Event will be determined based on a Performance
Period that ends on the last trading day of the month preceding the date the Change in Control is consummated (the “Accelerated
Performance Period”). The Total Stockholder Return of each member of the Peer Group will be measured based on the reported
closing stock price on the principal exchange on the last day of the Accelerated Performance Period, and the Total Stockholder
Return  of  the  Company  will  be  measured  on  the  last  day  of  the  Accelerated  Performance  Period  based  on  the  price  per  share
payable to stockholders of the Company in connection with the Change in Control. The number of shares determined based on
the  Relative  Total  Stockholder  Return  Percentile  for  the  Accelerated  Performance  Period,  as  adjusted  by  the  Absolute  TSR
Modifier, including any unpaid Dividend Equivalents credited to the Restricted Stock Unit Account, will vest immediately upon
the occurrence of such Acceleration Event.

3.3    Upon a termination of Participant’s Continuous Service as a result of Participant’s death or Disability, the
Target  Grant  Vesting  Percentage  will  be  determined  at  the  end  of  the  Performance  Period  and  the  Restricted  Stock  Units,
including any unpaid Dividend Equivalents credited to the Restricted Stock Unit Account, will be settled and paid at the same
Payment/Settlement Date as if the Participant remained in Continuous Service through the end of the Performance Period.

3.4        To  the  extent  that  a  Severance  Agreement  provides  for  acceleration  of  vesting  of  any  or  all  unvested
Restricted  Stock  Units  on  termination  of  Continuous  Service  that  is  more  favorable  to  Participant  than  the  provisions  of  this
Agreement, such provisions are incorporated by reference in this Agreement.

    Annex II
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 4

4.        Dividend Equivalents. If  the  Company  pays  any  cash  dividend  on  its  outstanding  Common  Stock  for  which  the
record  date  occurs  after  the  Date  of  Grant,  the  Administrator  will  credit  the  Restricted  Stock  Unit  Account  as  of  the  dividend
payment date in an amount equal to the amount of the dividend paid by the Company on a single Share multiplied by the number
of  Restricted  Stock  Units  under  this  Agreement  that  are  unvested  (based  on  the  Target  Number  of  Restricted  Stock  Units
Granted) as of that record date and such number of Restricted Stock Units that are vested but have not been settled under the
payment terms of Section 5 (“Dividend Equivalents”). Except as otherwise provided in Section 3, Dividend Equivalents will vest
and be paid to the Participant on the dividend payment date if Participant is in Continuous Service or otherwise holds vested but
have not been settled Restricted Stock Units on the dividend payment date declared by the Company.

5.        Payment/Settlement.  Subject  to  Participant’s  satisfaction  of  the  applicable  withholding  requirements  pursuant  to
Section  7  hereof,  the  Company  will  settle  the  Award  on  the  Payment/Settlement  Date  or  Dates  set  forth  in  the  Certificate  by
issuing to Participant one share of Common Stock for each Restricted Stock Unit payable on such Payment/Settlement Date (and
upon such settlement, the Restricted Stock Units will cease to be credited to the Restricted Stock Unit Account). If the Certificate
does not specify a Payment/Settlement Date, the applicable Payment/Settlement Date will be the date within 10 business days
after the Committee has made the certification required under Section 7(b)(iv) of the Plan with respect to the performance goals
applicable to such Restricted Stock Units (which in any event will be no later than March 15 of the calendar year following the
calendar  year  in  which  the  Performance  Period  ends).  If  an  Acceleration  Event  occurs,  the  Payment/Settlement  Date  will  be
within  10  business  days  after  the  date  the  Acceleration  Event  occurs.  The  Administrator  will  enter  Participant’s  name  as  a
stockholder of record with respect to such shares of Common Stock on the books of the Company with respect to the shares of
Common Stock issued on the applicable Payment/Settlement Date free of all restrictions hereunder, except for applicable federal
and  state  securities  law  restrictions.  Participant  acknowledges  and  agrees  that  shares  of  Common  Stock  may  be  issued  in
electronic form as a book entry with the Company’s transfer agent and that no physical certificates need be issued. Any securities,
other property or amounts nominally credited to the Restricted Stock Unit Account other than Restricted Stock Units will be paid
in kind or, in the Administrator’s discretion, in cash.

6.        Compliance  with  Laws  and  Regulations.  The  issuance  and  transfer  of  shares  of  Common  Stock  on  any
Payment/Settlement Date will be subject to the Company’s and Participant’s full compliance, to the satisfaction of the Company
and its counsel, with all applicable requirements of federal, state, and foreign securities laws and with all applicable requirements
of  any  securities  exchange  on  which  the  Common  Stock  may  be  listed  at  the  time  of  such  issuance  or  transfer.  Participant
understands that the Company is under no obligation to register or qualify the shares of Common Stock with the U.S. Securities
and  Exchange  Commission  (“SEC”),  any  state  securities  commission,  foreign  securities  regulatory  authority,  or  any  securities
exchange to effect such compliance.

    Annex II
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 5

7.    Tax Withholding.

7.1        As  a  condition  to  payment  under  Section  5  hereof,  Participant  agrees  that  on  or  before  the
Payment/Settlement Date or such other date as required by the Administrator, Participant will pay to the Company any federal,
state, or local taxes required by law to be withheld with respect to the Restricted Stock Units for which the restrictions lapse and
any related securities, other property or amounts then nominally credited to the Restricted Stock Unit Account.

7.2    Participant will pay the amounts due under this Section 7 to the Company by Stock Withholding, or may be
paid  at  Participant’s  election,  in  cash,  or  (to  the  extent  any  applicable  insider  trading  policy,  window  or  restriction  does  not
prohibit Participant from engaging in a sale transaction) by tendering shares of Common Stock held by Participant to a broker
selected  by  the  Company  for  immediate  sale  and  remittance  of  proceeds  equal  to  the  required  withholding  amount  to  the
Company,  including  shares  that  otherwise  would  be  issued  and  transferred  to  Participant  as  payment  on  the  applicable
Payment/Settlement  Date,  with  a  Fair  Market  Value  on  that  Payment/Settlement  Date  that  does  not  exceed  the  maximum
statutory  tax  rates  in  the  applicable  jurisdictions  (subject  to  Participant’s  written  request  to  withhold  more  than  the  minimum
required tax withholding in the applicable jurisdictions), or a combination of cash and shares of Common Stock. If  Participant
fails to make such payments, the Company or its Affiliates will, to the extent permitted by law, have the right to deduct from any
payment of any kind otherwise due to Participant any federal, state, or local taxes required by law to be withheld with respect to
such payment. Dividend Equivalents credited to the Restricted Stock Unit Account will be subject to withholding at the time of
payment.

8.    Not Transferrable. Until Common Stock is issued on the applicable Payment/Settlement Date, the Restricted Stock
Units, any related Dividend Equivalents credited to the Restricted Stock Unit Account and any related securities, other property
or amounts nominally credited to the Restricted Stock Unit Account may not be sold, transferred, or otherwise disposed of, and
may not be pledged or otherwise hypothecated other than by will or by the applicable laws of descent and distribution, provided
that the Restricted Stock Units and any related Dividend Equivalents credited to the Restricted Stock Unit Account will remain
subject to the terms of the Plan, the Certificate and this Agreement.

9.    No Right to Continued Service. Nothing in this Agreement or in the Plan imposes or may be deemed to impose, by
implication  or  otherwise,  any  limitation  on  any  right  of  the  Company  or  any  Affiliate  to  terminate  Participant’s  Continuous
Service at any time.

10.        Participant’s  Representations  and  Warranties.  Participant  represents  and  warrants  to  the  Company  that
Participant has received a copy of the Plan, has read and understands the terms of the Plan, the Certificate and this Agreement
and  agrees to be bound  by  their  terms  and  conditions. Participant  acknowledges  that  there  may  be  tax  consequences  upon  the
payment of the Restricted Stock Units, payment of any Dividend Equivalents credited to the Restricted Stock Unit Account or
disposition  of  any  shares  of  Common  Stock  received  on  a  Payment/Settlement  Date,  and  that  Participant  should  consult  a  tax
advisor before such time. Participant agrees to sign such additional documentation as the Company may reasonably require

    Annex II
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 6

from  time  to  time.  Participant  acknowledges  that  he  or  she  is  aware  that  copies  of  the  Plan  and  the  Company’s  financial
statements and information filed by the Company with the SEC are available upon request to the Company, at the SEC’s Public
Reference  Room  at  100  F  Street,  N.E.,  Room  1580,  Washington,  D.C.  20549  or  by  visiting  the  SEC  Internet  site  at
http://www.sec.gov that contains reports, proxy and information statements and other information regarding registrants that file
electronically with the SEC.

11.    No Interest in Company Assets. All amounts nominally credited to Participant’s Restricted Stock Unit Account
under this Agreement will continue for all purposes to be part of the general assets of the Company. Participant’s interest in the
Restricted Stock Unit Account will make Participant only a general, unsecured creditor of the Company.

12.    No Stockholder Rights before Delivery. Participant will not have any right, title, or interest in, or be entitled to
vote  or  to  receive  distributions  in  respect  of,  or  otherwise  be  considered  the  owner  of,  any  of  the  shares  of  Common  Stock
covered  by  the  Restricted  Stock  Units  until  the  Payment/Settlement  Dates  specified  in  the  Certificate  at  which  such  shares  of
Common Stock are issued pursuant to Section 5 hereof.

13.    Modification. The Agreement may not be amended or otherwise modified except in writing signed by both parties.

14.    Interpretation. Any dispute regarding the interpretation of this Agreement must be submitted by Participant or the
Company to the Administrator for review. The resolution of such a dispute by the Administrator will be final and binding on the
Company and Participant.

15.        Entire  Agreement.  The  Plan  and  the  Certificate  are  incorporated  herein  by  reference.  This  Agreement,  the
Certificate, and the Plan constitute the entire agreement of the parties and supersede all prior undertakings and agreements with
respect to the subject matter hereof. If any inconsistency or conflict exists between the terms and conditions of this Agreement,
the Certificate, and the Plan, the Plan will govern.

16.    Successors and Assigns. The Company may assign any of its rights under this Agreement. This Agreement will
bind and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth herein,
this  Agreement  is  binding  upon  Participant  and  Participant’s  heirs,  executors,  administrators,  legal  representatives,  successors,
and assigns.

17.    Governing Law. This Agreement will be governed by and construed in accordance with the laws of the State of
Delaware without giving effect to its conflict of law principles. If any provision of this Agreement is determined by a court of law
to be illegal or unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will
remain fully effective and enforceable.

    Annex II
Diamondback Energy, Inc. Restricted Stock Unit Award Agreement
Page 7

Diamondback Energy, Inc. 2019 Amended and Restated Equity Incentive Plan

EXHIBIT A

DIAMONDBACK ENERGY, INC.
EXECUTIVE ANNUAL INCENTIVE COMPENSATION PLAN

Exhibit 10.11

1.    Purpose.

The purpose of Diamondback Energy, Inc. Executive Annual Incentive Compensation Plan is to provide an incentive to
executive officers and other selected employees of the Company to contribute to the growth, profitability and increased value of
the Company by providing incentive compensation. The Plan is designed to focus on achievement of annual objectives and goals,
determined  at  the  beginning  of  each  calendar  year.  Participants  may  earn  a  pre-determined  percentage  of  base  salary  for  the
achievement  of  specified  goals.  The  payout  opportunity  varies  for  performance  above  and  below  the  pre-established  target
performance levels.

2.    Definitions.

Except  as  otherwise  expressly  provided  or  the  context  otherwise  requires,  financial  and  accounting  terms  are  used  as
defined for purposes of, and will be determined in accordance with, United States generally accepted accounting principles, as
from  time  to  time  in  effect,  as  applied  and  included  in  the  consolidated  financial  statements  of  the  Company,  prepared  in  the
ordinary course of business. The following terms, as used herein, will have the following meanings:

(a)    “Administrator” means the Board, the Compensation Committee of the Board or any other committee of the Board

to which the Board has delegated authority to administer the Plan.

(b)        “Award”  means  an  incentive  compensation  award,  granted  pursuant  to  the  Plan,  which  is  contingent  upon  the

attainment of specific Performance Targets during the Performance Period with respect to a preestablished Performance Factor.

(c)    “Board” means the Board of Directors of the Company.

(d)        “Change  in  Control”  has  the  meaning  set  forth  in  the  2019  Amended  and  Restated  Diamondback  Energy,  Inc.

Equity Incentive Plan or any successor plan as in effect from time to time.

(e)    “Code” means the Internal Revenue Code of 1986, as amended.

(f)    “Company” means, collectively, Diamondback Energy, Inc. and its subsidiaries and their respective successors.

(g)     “Participant” means an officer or employee of the Company who is, pursuant to Section 4 of the Plan, selected to

participate herein.

104398136.4

(h)    “Performance Factors” means the criteria and objectives, determined by the Administrator, used to measure the
Performance Targets which must be met during the applicable Performance Period as a condition of the Participant’s receipt of
payment with respect to an Award. Performance Factors may include any or all of the following: revenue; net sales; operating
income; earnings before all or any of interest expense, taxes, depreciation and/or amortization (“EBIT,” “EBITA” or “EBITDA”);
capital  efficiency  based  on  revenue  per  barrel  of  oil  equivalent  (“BOE”)  produced;  lease  operating  expenses;  general  and
administrative  expenses;  net  cash  provided  by  operating  activities  or  other  cash  flow  measurements;  working  capital  and
components  thereof;  return  on  equity  or  average  stockholders’  equity;  return  on  assets;  market  share;  sales  (net  or  gross)
measured  by  product  line,  territory,  customer(s),  or  other  category;  stock  price;  earnings  per  share;  earnings  from  continuing
operations; net worth; credit rating; levels of expense, cost or liability by category, operating unit or any other delineation; any
increase  or  decrease  of  one  or  more  of  the  foregoing  over  a  specified  period;  environmental,  social  and  governance  factors
(including,  without  limitation,  flaring,  greenhouse  gas  emissions,  recycled  water  usage,  fluid  spill  control  and  safety);  or  such
other criteria selected by the Administrator. Such Performance Factors may relate to the performance of the Company, a business
unit,  product  line,  territory,  or  any  combination  thereof.  Performance  Factors  may  also  include  such  objective  or  subjective
performance goals as the Administrator may, from time to time, establish. Subject to Section 5(b) hereof, the Administrator will
have the sole discretion to determine whether, or to what extent, Performance Factors are achieved.

(i)        “Performance  Period”  means  the  Company’s  fiscal  year  or  such  other  period  as  may  be  specified  by  the

Administrator.

(j)    “Performance Target” means the specific performance goals applicable to any Performance Factor specified by the
Administrator that are established to determine the amount payable to a Participant as a condition of the Participant’s receipt of
payment  with  respect  to  an  Award.  Such  performance  goals  may  be  established  in  absolute  terms,  as  objectives  relative  to
performance  in  prior  periods,  as  an  objective  compared  to  the  performance  of  one  or  more  comparable  company  or  an  index
covering multiple companies, or otherwise as the Administrator may determine.

(k)    “Plan” means this Diamondback Energy, Inc. Executive Annual Incentive Compensation Plan.

3.    Administration.

(a)    The Plan will be administered by the Administrator. The Administrator will have the authority in its sole discretion,
subject to and not inconsistent with the express provisions of the Plan, to administer the Plan and to exercise all the powers and
authorities either specifically granted to it under the Plan or necessary or advisable in the administration of the Plan, including,
without limitation, the authority to grant Awards; to determine the persons to whom and the time or times at which Awards will
be  granted;  to  determine  the  terms,  conditions,  restrictions  and  performance  criteria,  including  Performance  Factors  and
Performance Targets, relating to any Award; to determine whether, to what extent, and under what circumstances an Award may
be settled, canceled, forfeited, or surrendered; to specify and make adjustments in the Performance

2

Targets, including, but not limited to, adjustments in recognition of unusual or non-recurring events affecting the Company or the
financial  statements  of  the  Company,  or  in  response  to  changes  in  applicable  laws,  regulations,  or  accounting  principles;  to
construe  and  interpret  the  Plan  and  any  Award;  to  prescribe,  amend  and  rescind  rules  and  regulations  relating  to  the  Plan;  to
determine  the  terms  and  provisions  of  Awards;  and  to  make  all  other  determinations  deemed  necessary  or  advisable  for  the
administration of the Plan.

(b)        All  decisions,  determinations  and  interpretations  of  the  Administrator  will  be  final  and  binding  on  all  persons,

including the Company and the Participant (or any person claiming any rights under the Plan from or through any Participant).

(c)        The  Administrator  may,  in  its  discretion,  at  any  time  establish  (and,  once  established,  rescind,  waive  or  amend)
additional conditions and terms of payment of Awards (including, but not limited to, the achievement of other financial, strategic
or individual goals, which may be objective or subjective) as it may deem desirable in carrying out the purposes of the Plan and
may take into account such other factors as it deems appropriate in administering any aspect of the Plan, including to reduce the
amount of such an Award at any time prior to payment based on such criteria as it may determine (including, but not limited to,
individual merit and the attainment of specified levels of one or any combination of the Performance Factors).

(d)    The Administrator and any members thereof will be entitled to, in good faith, rely or act upon any report or other
information  furnished  to  him  or  her  by  any  officer  or  employee  of  the  Company,  the  Company’s  independent  certified  public
accountants, consultants or any other agent assisting in the administration of the Plan. The Administrator, any  members  of  the
compensation committee and any officer or employee of the Company acting at the direction or on behalf of the Administrator
will not be personally liable for any action or determination taken or made in good faith with respect to the Plan, and will, to the
extent permitted by law, be fully indemnified and protected by the Company with respect to any such action or determination.

4.    Eligibility.

Awards may be granted to Participants in the sole discretion of the Administrator. In determining the persons to whom
Awards may be granted, the Performance Factors and Performance Targets relating to each Award, the Administrator will take
into account such factors as the Administrator deems relevant in connection with accomplishing the purposes of the Plan.

5.    Terms of Awards.

Awards granted pursuant to the Plan may be communicated to Participants in such form as the Administrator from time to

time approves and the terms and conditions of such Awards will be set forth therein.

3

(a)    In General. The Administrator will specify with respect to a Performance Period the Performance Factors and the
Performance  Targets  applicable  to  each  Award.  Performance  Targets  may  include  a  level  of  performance  below  which  no
payment will be made and levels of performance at which specified percentages of the Award will be paid as well as a maximum
level of performance above which no additional Award will be paid.

(b)    Time and Form of Payment. Unless otherwise determined by the Administrator, all payments in respect of Awards
granted under this Plan will be made, in cash, within a reasonable period after the end of the Performance Period, but in the case
of Awards designed not to be deferred compensation within the meaning of Section 409A of the Code, not later than the latest
date at which such Awards will still qualify for the exemption from Section 409A of the Code applicable to short-term deferrals.

6.    General Provisions.

(a)        Compliance  with  Legal  Requirements.  The  Plan  and  the  granting  and  payment  of  Awards,  and  the  other
obligations of the Company under the Plan, will be subject to all applicable federal and state laws, rules and regulations, and to
such approvals by any regulatory or governmental agency as may be required.

(b)    Nontransferability. Awards will not be transferable by a Participant except upon the Participant’s death following
the  end  of  the  Performance  Period  but  prior  to  the  date  payment  is  made,  in  which  case  the  Award  will  be  payable  to  the
Participant’s  designated  beneficiary  or,  if  no  beneficiary  has  been  designated,  transferable  by  will  or  the  laws  of  descent  and
distribution.

(c)    No Right to Continued Employment. Nothing  in  the  Plan  or  in  any  Award  granted  pursuant  hereto  will  confer
upon any Participant the right to continue in the employ of the Company or to be entitled to any remuneration or benefits not set
forth in the Plan or to interfere with or limit in any way the right of the Company to terminate such Participant’s employment.

(d)        Withholding Taxes. Where  a  Participant  or  other  person  is  entitled  to  receive  a  payment  pursuant  to  an  Award
hereunder, the Company will have the right to withhold or otherwise require the Participant or such other person to pay to the
Company the amount of any taxes that the Company may be required to withhold before delivery to such Participant or other
person of such payment.

(e)    Amendment, Termination and Duration of the Plan. The Administrator may at any time and from time to time

alter, amend, suspend, or terminate the Plan in whole or in part.

(f)    Participant Rights. No  Participant  will  have  any  claim  to  be  granted  any  Award  under  the  Plan,  and  there  is  no

obligation for uniformity of treatment for Participants.

4

(g)        Termination  of  Employment.  Unless  otherwise  provided  by  the  Administrator  in  connection  with  specified
terminations of employment, if the employment of a Participant terminates for any reason prior to the payment of any Award for
any reason other than death or disability, no Award will be payable to such Participant for that Performance Period. A Participant
whose termination is due to his or her death or disability will be entitled to receive a prorated Award based on the number of days
he or she was employed by the Company during the applicable Performance Period, such Award to be paid to such Participant (or
such Participant’s beneficiary, in the case of such Participant’s death) at the same time such Award would have been paid if such
Participant remained employed.

(h)    Change in Control. In the event of a Change in Control, each Participant will be paid the target Award amount
based on the assumption that the Performance Target was attained at the target level for the entire Performance Period. The target
Award amount will be paid within ten (10) days following the consummation (closing date) of the Change in Control transaction.
For purposes of clarity, references to “target Award” and “target level” mean the mid-point of any specified range of potential
Award payment amounts or Performance Targets.

(i)        Unfunded  Status  of  Awards.  The  Plan  is  intended  to  constitute  an  “unfunded”  plan  for  incentive  and  deferred
compensation. With respect to any payments not yet made to a Participant pursuant to an Award, nothing contained in the Plan or
any Award will give any such Participant any rights that are greater than those of a general creditor of the Company.

(j)    Governing Law. The Plan and all determinations made and actions taken pursuant hereto will be governed by the

laws of the State of Delaware without giving effect to the conflict of laws principles thereof.

(k)    Effective Date. The Plan will take effect upon its adoption by the Compensation Committee of the Board for the

fiscal year Performance Period beginning January 1, 2021.

(l)    Beneficiary. A Participant may file with the Administrator a written designation of a beneficiary on such form as
may  be  prescribed  by  the  Administrator  and  may,  from  time  to  time,  amend  or  revoke  such  designation.  If  no  designated
beneficiary survives the Participant and an Award is payable to the Participant’s beneficiary pursuant to Section 6(g), the executor
or administrator of the Participant’s estate will be deemed to be the grantee’s beneficiary.

(m)    No Impairment of Rights. The adoption or administration of the Plan is not intended, nor will it be interpreted, as
having the effect of modifying, altering, adding or impairing any right that a Participant may have under a separate agreement
entered into between the Company or any of its subsidiaries and such Participant.

(n)        Section  409A.  It  is  intended  that  any  amounts  payable  with  respect  to  any  Award  under  this  Plan  will  to  the
maximum  extent  possible  be  treated  as  short-term  deferrals  within  the  meaning  of  Treas.  Regs.  §1.409A-1(b)(4)  or  other
payments that are not treated as nonqualified deferred compensation and will not be aggregated with other nonqualified deferred
compensation  plans  or  payments.  To  the  extent  that  any  amounts  payable  under  this  Plan  constitute  nonqualified  deferred
compensation it is intended that such payments will comply with and avoid

5

the imputation of any tax, penalty or interest under Section 409A of the Code. This Plan and any Award under the Plan will be
construed and interpreted consistent with that intent. Any amount that is paid will be treated as a separate payment. Participants
will not, directly or indirectly, designate the taxable year of any payment made under this Plan. Neither Company nor any of its
subsidiaries guaranty or warrant the tax consequences of any Award under this Plan and, except as specifically provided to the
contrary in this Plan, each Participant will in all cases, be liable for any taxes due as a result of an Award under this Plan. Neither
Company nor any of its subsidiaries will have any obligation to indemnify or otherwise hold any Participant harmless from any
or all taxes, interest or penalties, or liability for any damages related thereto.

6

Diamondback Energy, Inc.
Subsidiaries of Registrant

Name of Subsidiary
Bohemia Merger Sub Inc.
Diamondback E&P LLC
Diamondback O&G LLC
Energen Corporation
Energen Resources Corporation
EGN Services, Inc.
Rattler Midstream GP LLC
Rattler Midstream Operating LLC
Rattler Midstream LP
Tall City Towers LLC
Rattler Ajax Processing LLC
Rattler OMOG LLC
Viper Energy Partners GP
Viper Energy Partners LP
Viper Energy Partners LLC

Exhibit 21.1

Jurisdiction of Incorporation
Delaware
Delaware
Delaware
Alabama
Alabama
Alabama
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We have issued our reports dated February 25, 2021, with respect to the consolidated financial statements and internal control over financial
reporting included in the Annual Report of Diamondback Energy, Inc. on Form 10-K for the year ended December 31, 2020. We consent to
the incorporation by reference of said reports in the Registration Statements of Diamondback Energy, Inc. on Forms S-3ASR (File No. 333-
228584,  effective  November  29,  2018;  and  File  No.  333-234764,  effective  November  18,  2019),  Form  S-4,  as  amended  (File  No.  333-
252338,  effective  February  10,  2021),  and  on  Forms  S-8  (File  No.  333-188552,  effective  May  13,  2013;  File  No.  333-215798,  effective
January 27, 2017; File No. 333-228637, effective November 30, 2018; and File No. 333-235671, effective December 23, 2019).

Exhibit 23.1

/s/ GRANT THORNTON LLP

Oklahoma City, Oklahoma
February 25, 2021

CONSENT OF RYDER SCOTT COMPANY, L.P.

Exhibit 23.2

We have issued our report dated January 7, 2021 on estimates of proved reserves, future production and income attributable to certain
leasehold  interest  of  Diamondback  Energy,  Inc.  (“Diamondback”)  as  of  December  31,  2020.  As  independent  oil  and  gas  consultants,  we
hereby consent to the inclusion of our report and the information contained therein and information from our prior reserve reports referenced
in this Annual Report on Form 10-K of Diamondback (this “Annual Report”) and to all references to our firm in this Annual Report. We
hereby also consent to the incorporation by reference of such reports and the information contained therein in the Registration Statements of
Diamondback on Forms S-3ASR (File No. 333-228584, effective November 29, 2018), (File No. 333-234764, effective November 18, 2019),
Form  S-4,  as  amended  (File  No.  333-252338,  effective  February  10,  2021),  and  on  Forms  S-8  (File  No.  333-188552,  effective  May  13,
2013), (File No. 333-215798, effective January 27, 2017), (File No. 333-228637, effective November 30, 2018) and (File No. 333-235671,
effective December 23, 2019).

/s/ Ryder Scott Company, L.P.

RYDER SCOTT COMPANY, L.P.
TBPE Firm Registration No. F-1580

Houston, Texas

February 25, 2021

CONSENT OF RYDER SCOTT COMPANY, L.P.

Exhibit 23.3

We have issued our report dated January 7, 2021 on estimates of proved reserves, future production and income attributable to certain royalty
interests  of  Viper  Energy  Partners  LP,  a  subsidiary  of  Diamondback  Energy,  Inc.  (“Diamondback”),  as  of  December  31,  2020.  As
independent oil and gas consultants, we hereby consent to the inclusion of our report and the information contained therein and information
from our prior reserve reports referenced in this Annual Report on Form 10-K of Diamondback (this “Annual Report”) and to all references
to our firm in this Annual Report. We hereby also consent to the incorporation by reference of such reports and the information contained
therein in the Registration Statements of Diamondback on Forms S-3ASR (File No. 333-228584, effective November 29, 2018), (File No.
333-234764, effective November 18, 2019), Form S-4, as amended (File No. 333-252338, effective February 10, 2021), and on Forms S-8
(File  No.  333-188552,  effective  May  13,  2013),  (File  No.  333-215798,  effective  January  27,  2017),  (File  No.  333-228637,  effective
November 30, 2018) and (File No. 333-235671, effective December 23, 2019).

/s/ Ryder Scott Company, L.P.

RYDER SCOTT COMPANY, L.P.
TBPE Firm Registration No. F-1580

Houston, Texas

February 25, 2021

EXHIBIT 31.1

I, Travis D. Stice, certify that:

1.    I have reviewed this Annual Report on Form 10-K of Diamondback Energy, Inc.

CERTIFICATION

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 registrant as of, and for, the periods presented in this report;

4.        The  registrant’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  Rule  13a-15(f)  and  15d-
15(f)) for the registrant 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 registrant, 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  registrant’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 registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal  quarter  (the  registrant’s  fourth  fiscal  quarter  in  the  case  of  an  annual  report)  that  has  materially  affected,  or  is  reasonably  likely  to
materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’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 registrant’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 registrant’s internal control

over financial reporting.

Date:

February 25, 2021

/s/ Travis D. Stice
Travis D. Stice
Chief Executive Officer

 
EXHIBIT 31.2

I, Kaes Van't Hof, certify that:

1.    I have reviewed this Annual Report on Form 10-K of Diamondback Energy, Inc.

CERTIFICATION

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 registrant as of, and for, the periods presented in this report;

4.        The  registrant’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  Rule  13a-15(f)  and  15d-
15(f)) for the registrant 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 registrant, 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  registrant’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 registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal  quarter  (the  registrant’s  fourth  fiscal  quarter  in  the  case  of  an  annual  report)  that  has  materially  affected,  or  is  reasonably  likely  to
materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’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 registrant’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 registrant’s internal control

over financial reporting.

Date:

February 25, 2021

/s/ Kaes Van't Hof
Kaes Van't Hof
Chief Financial Officer

 
CERTIFICATION OF PERIOD REPORT

EXHIBIT 32.1

I, Travis D. Stice, Chief Executive Officer of Diamondback Energy, Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley

Act of 2002, 18 U.S.C. Section 1350, that, to the best of my knowledge:

(1) the Annual Report on Form 10-K of the Company for the year ended December 31, 2020 (the “Report”) fully complies with the requirements of

Section 13 (a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)); and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:

February 25, 2021

/s/ Travis D. Stice
Travis D. Stice
Chief Executive Officer

 
CERTIFICATION OF PERIOD REPORT

EXHIBIT 32.2

I, Kaes Van't Hof, Chief Financial Officer of Diamondback Energy, Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act

of 2002, 18 U.S.C. Section 1350, that, to the best of my knowledge:

(1) the Annual Report on Form 10-K of the Company for the year ended December 31, 2020 (the “Report”) fully complies with the requirements of

Section 13 (a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)); and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:

February 25, 2021

/s/ Kaes Van't Hof
Kaes Van't Hof
Chief Financial Officer

 
Exhibit 99.1

DIAMONDBACK ENERGY, INC.

Estimated

Future Reserves and Income

Attributable to Certain

Leasehold and Royalty Interests

SEC Parameters

As of

December 31, 2020

/s/ Val Rick Robinson
Val Rick Robinson, P.E.
TBPE License No. 105137
Managing Senior Vice President

[SEAL]

/s/ Syed R. Rizvi
Syed R. Rizvi
Senior Petroleum Engineer

RYDER SCOTT COMPANY, L.P.
TBPE Firm Registration No. F-1580

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 1

Diamondback Energy, Inc.
500 West Texas, Suite 1210
Midland, Texas 79701

Ladies and Gentlemen:

        January 7, 2021

At  your  request,  Ryder  Scott  Company,  L.P.  (Ryder  Scott)  has  prepared  an  estimate  of  the  proved  reserves,  future
production, and income attributable to certain leasehold and royalty interests of Diamondback Energy, Inc. (Diamondback) as of
December 31, 2020. The subject properties are located in the states of New Mexico and Texas. The reserves and income data
were estimated based on the definitions and disclosure guidelines of the United States Securities and Exchange Commission
(SEC) contained in Title 17, Code of Federal Regulations, Modernization of Oil and Gas Reporting, Final Rule released January
14, 2009 in the Federal Register (SEC regulations). Our third party study, completed on January 7, 2021 and presented herein,
was prepared for public disclosure by Diamondback in filings made with the SEC in accordance with the disclosure requirements
set forth in the SEC regulations.

The properties evaluated by Ryder Scott represent 100 percent of the total net proved liquid hydrocarbon reserves and

100 percent of the total net proved gas reserves of Diamondback as of December 31, 2020.

The estimated reserves and future net income amounts presented in this report, as of December 31, 2020 are related to
hydrocarbon prices. The hydrocarbon prices used in the preparation of this report are based on the average prices during the
12-month period prior to the “as of date” of this report, determined as the unweighted arithmetic averages of the prices in effect
on  the  first-day-of-the-month  for  each  month  within  such  period,  unless  prices  were  defined  by  contractual  arrangements,  as
required by the SEC regulations. Actual future prices may vary considerably from the prices required by SEC regulations. The
recoverable reserves volumes and the income attributable thereto have a direct relationship to the hydrocarbon prices actually
received; therefore, volumes of reserves actually recovered and the amounts of income actually received may differ significantly
from the estimated quantities presented in this report. The results of this study are summarized as follows.

    SUITE 800, 350 7TH AVENUE, S.W.    CALGARY, ALBERTA T2P 3N9    TEL (403) 262-2799    FAX (403) 262-2790
    633 17TH STREET, SUITE 1700    DENVER, COLORADO 80202    TEL (303) 339-8110

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 2

SEC PARAMETERS
Estimated Net Reserves and Income Data
Certain Leasehold and Royalty Interests of
Diamondback Energy, Inc.

As of December 31, 2020

Net Reserves
Oil/Condensate – Mbbl
Plant Products – Mbbl
Gas – MMcf
MBOE

Income Data ($M)
Future Gross Revenue
Deductions
Future Net Income (FNI)

Developed
Producing

Proved

Undeveloped

403,244
175,771
991,419
744,252

298,628
91,472
496,195
472,799

Total
Proved

701,872
267,243
1,487,614
1,217,051

$16,428,951 
7,919,653
$8,509,298 

$11,807,941 
7,125,604
$4,682,337 

$28,236,892 
15,045,257
$13,191,635 

Discounted FNI @ 10%

$4,400,809 

$1,590,223 

$5,991,032 

Liquid hydrocarbons are expressed in standard 42 U.S. gallon barrels and shown herein as thousands of barrels (Mbbl).
All  gas  volumes  are  reported  on  an  “as  sold  basis”  expressed  in  millions  of  cubic  feet  (MMcf)  at  the  official  temperature  and
pressure bases of the areas in which the gas reserves are located. The net reserves are also shown herein on an equivalent
unit basis wherein natural gas is converted to oil equivalent using a factor of 6,000 cubic feet of natural gas per one barrel of oil
equivalent.  MBOE  means  thousand  barrels  of  oil  equivalent.  In  this  report,  the  revenues,  deductions,  and  income  data  are
expressed as thousands of U.S. dollars ($M).

The estimates of the reserves, future production, and income attributable to properties in this report were prepared using
the economic software package ARIES  Petroleum Economics and Reserves Software, a copyrighted program of Halliburton.
The  program  was  used  at  the  request  of  Diamondback.  Ryder  Scott  has  found  this  program  to  be  generally  acceptable,  but
notes that certain summaries and calculations may vary due to rounding and may not exactly match the sum of the properties
being summarized. Furthermore, one line economic summaries may vary slightly from the more detailed cash flow projections of
the same properties, also due to rounding. The rounding differences are not material.

TM

The future gross revenue is after the deduction of production taxes. The deductions incorporate the normal direct costs
of operating the wells, ad valorem taxes, recompletion costs, development costs, and certain abandonment costs net of salvage.
“Other” costs shown in the cash flow are variable production costs. The future net income is before the deduction of state and
federal income taxes and general administrative overhead, and has not been adjusted for outstanding loans that may exist nor
does it include any adjustment for cash on hand or undistributed income.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 3

Liquid  hydrocarbon  reserves  account  for  approximately  99.7  percent  and  gas  reserves  account  for  the  remaining  0.3

percent of total future gross revenue from proved reserves.

    The discounted future net income shown above was calculated using a discount rate of 10 percent per annum compounded
monthly. Future net income was discounted at four other discount rates which were also compounded monthly. These  results
are shown in summary form as follows.

Discount Rate
Percent

5
15
20
30

Discounted Future Net Income ($M)
As of December 31, 2020
Total
Proved

$8,246,832
$4,730,425
$3,928,540
$2,967,253

The results shown above are presented for your information and should not be construed as our estimate of fair market

value.

Reserves Included in This Report

The proved reserves included herein conform to the definition as set forth in the Securities and Exchange Commission’s
Regulations  Part  210.4-10(a).  An  abridged  version  of  the  SEC  reserves  definitions  from  210.4-10(a)  entitled  “PETROLEUM
RESERVES DEFINITIONS” is included as an attachment to this report.

The  various  reserves  status  categories  are  defined  in  the  attachment  entitled  “PETROLEUM  RESERVES  STATUS

DEFINITIONS AND GUIDELINES” in this report.

No attempt was made to quantify or otherwise account for any accumulated gas production imbalances that may exist.

The proved gas volumes presented herein do not include volumes of gas consumed in operations as reserves.

Reserves  are  “estimated  remaining  quantities  of  oil  and  gas  and  related  substances  anticipated  to  be  economically
producible, as of a given date, by application of development projects to known accumulations.” All reserves estimates involve
an  assessment  of  the  uncertainty  relating  the  likelihood  that  the  actual  remaining  quantities  recovered  will  be  greater  or  less
than the estimated quantities determined as of the date the estimate is made. The uncertainty depends chiefly on the amount of
reliable  geologic  and  engineering  data  available  at  the  time  of  the  estimate  and  the  interpretation  of  these  data.  The  relative
degree of uncertainty may be conveyed by placing reserves into one of two principal classifications, either proved or unproved.
Unproved reserves are less certain to be recovered than proved reserves and may be further sub-categorized as probable and
possible  reserves  to  denote  progressively  increasing  uncertainty  in  their  recoverability.  At  Diamondback’s  request,  this  report
addresses only the proved reserves attributable to the properties evaluated herein.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 4

Proved oil and gas reserves are “those quantities of oil and gas which, by analysis of geoscience and engineering data,
can  be  estimated  with  reasonable  certainty  to  be  economically  producible  from  a  given  date  forward.”  The  proved  reserves
included  herein  were  estimated  using  deterministic  methods.  The  SEC  has  defined  reasonable  certainty  for  proved  reserves,
when based on deterministic methods, as a “high degree of confidence that the quantities will be recovered.”

Proved reserves estimates will generally be revised only as additional geologic or engineering data become available or
as  economic  conditions  change.  For  proved  reserves,  the  SEC  states  that  “as  changes  due  to  increased  availability  of
geoscience  (geological,  geophysical,  and  geochemical),  engineering,  and  economic  data  are  made  to  the  estimated  ultimate
recovery  (EUR)  with  time,  reasonably  certain  EUR  is  much  more  likely  to  increase  or  remain  constant  than  to  decrease.”
Moreover, estimates of proved reserves may be revised as a result of future operations, effects of regulation by governmental
agencies or geopolitical or economic risks. Therefore, the proved reserves included in this report are estimates only and should
not be construed as being exact quantities, and if recovered, the revenues therefrom, and the actual costs related thereto, could
be more or less than the estimated amounts.

Diamondback’s  operations  may  be  subject  to  various  levels  of  governmental  controls  and  regulations.  These  controls
and regulations may include, but may not be limited to, matters relating to land tenure and leasing, the legal rights to produce
hydrocarbons, drilling and production practices, environmental protection, marketing and pricing policies, royalties, various taxes
and  levies  including  income  tax  and  are  subject  to  change  from  time  to  time.  Such  changes  in  governmental  regulations  and
policies  may  cause  volumes  of  proved  reserves  actually  recovered  and  amounts  of  proved  income  actually  received  to  differ
significantly from the estimated quantities.

The  estimates  of  proved  reserves  presented  herein  were  based  upon  a  detailed  study  of  the  properties  in  which
Diamondback owns an interest; however, we have not made any field examination of the properties. No consideration was given
in this report to potential environmental liabilities that may exist nor were any costs included for potential liabilities to restore and
clean up damages, if any, caused by past operating practices.

Estimates of Reserves

The  estimation  of  reserves  involves  two  distinct  determinations.  The  first  determination  results  in  the  estimation  of  the
quantities of recoverable oil and gas and the second determination results in the estimation of the uncertainty associated with
those  estimated  quantities  in  accordance  with  the  definitions  set  forth  by  the  Securities  and  Exchange  Commission’s
Regulations Part 210.4-10(a). The process of estimating the quantities of recoverable oil and gas reserves relies on the use of
certain generally accepted analytical procedures. These  analytical  procedures  fall  into  three  broad  categories  or  methods:  (1)
performance-based  methods,  (2)  volumetric-based  methods  and  (3)  analogy.  These  methods  may  be  used  individually  or  in
combination by the reserves evaluator in the process of estimating the quantities of reserves. Reserves evaluators must select
the method or combination of methods which in their professional judgment is most appropriate given the nature and amount of
reliable  geoscience  and  engineering  data  available  at  the  time  of  the  estimate,  the  established  or  anticipated  performance
characteristics of the reservoir being evaluated, and the stage of development or producing maturity of the property.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 5

In many cases, the analysis of the available geoscience and engineering data and the subsequent interpretation of this
data may indicate a range of possible outcomes in an estimate, irrespective of the method selected by the evaluator. When a
range  in  the  quantity  of  reserves  is  identified,  the  evaluator  must  determine  the  uncertainty  associated  with  the  incremental
quantities of the reserves. If the reserves quantities are estimated using the deterministic incremental approach, the uncertainty
for  each  discrete  incremental  quantity  of  the  reserves  is  addressed  by  the  reserves  category  assigned  by  the  evaluator.
Therefore,  it  is  the  categorization  of  reserves  quantities  as  proved,  probable  and/or  possible  that  addresses  the  inherent
uncertainty in the estimated quantities reported. For proved reserves, uncertainty is defined by the SEC as reasonable certainty
wherein  the  “quantities  actually  recovered  are  much  more  likely  to  be  achieved  than  not.”  The  SEC  states  that  “probable
reserves  are  those  additional  reserves  that  are  less  certain  to  be  recovered  than  proved  reserves  but  which,  together  with
proved reserves, are as likely as not to be recovered.” The SEC states that “possible reserves are those additional reserves that
are less certain to be recovered than probable reserves and the total quantities ultimately recovered from a project have a low
probability  of  exceeding  proved  plus  probable  plus  possible  reserves.”  All  quantities  of  reserves  within  the  same  reserves
category must meet the SEC definitions as noted above.

Estimates  of  reserves  quantities  and  their  associated  reserves  categories  may  be  revised  in  the  future  as  additional
geoscience or engineering data become available. Furthermore, estimates of reserves quantities and their associated reserves
categories may also be revised due to other factors such as changes in economic conditions, results of future operations, effects
of regulation by governmental agencies or geopolitical or economic risks as previously noted herein.

The  proved  reserves  for  the  properties  included  herein  were  estimated  by  performance  methods,  analogy,  or  a
combination  of  methods.  Approximately  90  percent  of  the  proved  producing  reserves  attributable  to  producing  wells  and/or
reservoirs were estimated by performance methods or a combination of methods. These performance methods include, but may
not be limited to, decline curve analysis which utilized extrapolations of historical production and pressure data available through
December,  2020  in  those  cases  where  such  data  were  considered  to  be  definitive.  The  data  utilized  in  this  analysis  were
furnished to Ryder Scott by Diamondback or obtained from public data sources and were considered sufficient for the purpose
thereof. The remaining 10 percent of the proved producing reserves were estimated by analogy, or a combination of methods.
These methods were used where there were inadequate historical performance data to establish a definitive trend and where
the use of production performance data as a basis for the reserves estimates was considered to be inappropriate.

All proved undeveloped reserves included herein were estimated by the analogy method.

To estimate economically recoverable proved oil and gas reserves and related future net cash flows, we consider many
factors and assumptions including, but not limited to, the use of reservoir parameters derived from geological, geophysical and
engineering data which cannot be measured directly, economic criteria based on current costs and SEC pricing requirements,
and  forecasts  of  future  production  rates.  Under  the  SEC  regulations  210.4-10(a)(22)(v)  and  (26),  proved  reserves  must  be
anticipated to be economically producible from a given date forward based on existing economic conditions including the prices
and costs at which economic producibility from a reservoir is to be determined. While it may reasonably be anticipated that the
future  prices  received  for  the  sale  of  production  and  the  operating  costs  and  other  costs  relating  to  such  production  may
increase or decrease from those under existing economic conditions, such changes were, in accordance with rules adopted by
the SEC, omitted from consideration in making this evaluation.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 6

Diamondback  has  informed  us  that  they  have  furnished  us  all  of  the  material  accounts,  records,  geological  and
engineering data, and reports and other data required for this investigation. In preparing our forecast of future proved production
and income, we have relied upon data furnished by Diamondback with respect to property interests owned, production and well
tests  from  examined  wells,  normal  direct  costs  of  operating  the  wells  or  leases,  other  costs  such  as  transportation  and/or
processing  fees,  ad  valorem  and  production  taxes,  recompletion  and  development  costs,  development  plans,  abandonment
costs  after  salvage,  product  prices  based  on  the  SEC  regulations,  adjustments  or  differentials  to  product  prices,  geological
structural  and  isochore  maps,  well  logs,  and  pressure  measurements.  Ryder  Scott  reviewed  such  factual  data  for  its
reasonableness;  however,  we  have  not  conducted  an  independent  verification  of  the  data  furnished  by  Diamondback.  We
consider the factual data used in this report appropriate and sufficient for the purpose of preparing the estimates of reserves and
future net revenues herein.

In summary, we consider the assumptions, data, methods and analytical procedures used in this report appropriate for
the purpose hereof, and we have used all such methods and procedures that we consider necessary and appropriate to prepare
the estimates of reserves herein. The proved reserves included herein were determined in conformance with the United States
Securities  and  Exchange  Commission  (SEC)  Modernization  of  Oil  and  Gas  Reporting;  Final  Rule,  including  all  references  to
Regulation S-X and Regulation S-K, referred to herein collectively as the “SEC Regulations.” In our opinion, the proved reserves
presented in this report comply with the definitions, guidelines and disclosure requirements as required by the SEC regulations.

Future Production Rates

For wells currently on production, our forecasts of future production rates are based on historical performance data. If no
production decline trend has been established, future production rates were based on analog well performance and type-curves
where  appropriate,  until  a  decline  in  ability  to  produce  was  anticipated.  An  estimated  rate  of  decline  was  then  applied  until
depletion  of  the  reserves.  If  a  decline  trend  has  been  established,  this  trend  was  used  as  the  basis  for  estimating  future
production rates.

Test data and other related information were used to estimate the anticipated initial production rates for those locations
that are not currently producing. For reserves not yet on production, sales were estimated to commence at an anticipated date
furnished by Diamondback. Locations that are not currently producing may start producing earlier or later than anticipated in our
estimates due to unforeseen factors causing a change in the timing to initiate production. Such factors may include delays due
to  weather,  the  availability  of  rigs,  the  sequence  of  drilling,  completing  and/or  recompleting  wells  and/or  constraints  set  by
regulatory bodies.

The future production rates from wells currently on production or locations that are not currently producing may be more
or less than estimated because of changes including, but not limited to, reservoir performance, operating conditions related to
surface facilities, compression and artificial lift, pipeline capacity and/or operating conditions, producing market demand and/or
allowables or other constraints set by regulatory bodies.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 7

Hydrocarbon Prices

The hydrocarbon prices used herein are based on SEC price parameters using the average prices during the 12-month
period prior to the “as of date” of this report, determined as the unweighted arithmetic averages of the prices in effect on the first-
day-of-the-month for each month within such period, unless prices were defined by contractual arrangements. For hydrocarbon
products  sold  under  contract,  the  contract  prices,  including  fixed  and  determinable  escalations,  exclusive  of  inflation
adjustments,  were  used  until  expiration  of  the  contract.  Upon  contract  expiration,  the  prices  were  adjusted  to  the  12-month
unweighted arithmetic average as previously described.

Diamondback furnished us with the above mentioned average prices in effect on December 31, 2020. These initial SEC
hydrocarbon  prices  were  determined  using  the  12-month  average  first-day-of-the-month  benchmark  prices  appropriate  to  the
geographic  area  where  the  hydrocarbons  are  sold.  These  benchmark  prices  are  prior  to  the  adjustments  for  differentials  as
described  herein.  The  table  below  summarizes  the  “benchmark  prices”  and  “price  reference”  used  for  the  geographic  area
included  in  the  report.  In  certain  geographic  areas,  the  price  reference  and  benchmark  prices  may  be  defined  by  contractual
arrangements.

The product prices which were actually used to determine the future gross revenue for each property reflect adjustments
to  the  benchmark  prices  for  gravity,  quality,  local  conditions,  and/or  distance  from  market,  referred  to  herein  as  “differentials.”
The differentials used in the preparation of this report were furnished to us by Diamondback. The differentials furnished to us
were accepted as factual data and reviewed by us for their reasonableness; however, we have not conducted an independent
verification of the data used by Diamondback to determine these differentials.

In addition, the table below summarizes the net volume weighted benchmark prices adjusted for differentials and referred
to herein as the “average realized prices.” The average realized prices shown in the table below were determined from the total
future gross revenue before production taxes and the total net reserves for the geographic area and presented in accordance
with SEC disclosure requirements for the geographic areas included in the report.

Geographic Area
North America

United States

Product

Oil/Condensate
NGLs
Gas

Price
Reference

WTI Cushing
WTI Cushing
Henry Hub

Average
Benchmark
Prices

$39.57/bbl
$39.57/bbl
$1.99/MMBTU

Average Realized
Prices

$38.09/bbl
$10.76/bbl
$0.07/Mcf

The  effects  of  derivative  instruments  designated  as  price  hedges  of  oil  and  gas  quantities  are  not  reflected  in  our

individual property evaluations.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 8

Costs

Operating costs for the leases and wells in this report were furnished by Diamondback and are based on the operating
expense  reports  of  Diamondback  and  include  only  those  costs  directly  applicable  to  the  leases  or  wells.  The  operating  costs
include  a  portion  of  general  and  administrative  costs  allocated  directly  to  the  leases  and  wells.  For  operated  properties,  the
operating  costs  include  an  appropriate  level  of  corporate  general  administrative  and  overhead  costs.  The  operating  costs  for
non-operated properties include the COPAS overhead costs that are allocated directly to the leases and wells under terms of
operating  agreements.  The  operating  costs  furnished  to  us  were  accepted  as  factual  data  and  reviewed  by  us  for  their
reasonableness; however, we have not conducted an independent verification of the operating cost data used by Diamondback.
No  deduction  was  made  for  loan  repayments,  interest  expenses,  or  exploration  and  development  prepayments  that  were  not
charged directly to the leases or wells.

Development  costs  were  furnished  to  us  by  Diamondback  and  are  based  on  authorizations  for  expenditure  for  the
proposed work or actual costs for similar projects. The development costs furnished to us were accepted as factual data and
reviewed  by  us  for  their  reasonableness;  however,  we  have  not  conducted  an  independent  verification  of  these  costs.  The
estimated  net  cost  of  abandonment  after  salvage  was  included  for  properties  where  abandonment  costs  net  of  salvage  were
material.  The  estimates  of  the  net  abandonment  costs  furnished  by  Diamondback  were  accepted  without  independent
verification.

The proved undeveloped reserves in this report have been incorporated herein in accordance with Diamondback’s plans
to develop these reserves as of December 31, 2020. The implementation of Diamondback’s development plans as presented to
us  and  incorporated  herein  is  subject  to  the  approval  process  adopted  by  Diamondback’s  management.  As  the  result  of  our
inquiries  during  the  course  of  preparing  this  report,  Diamondback  has  informed  us  that  the  development  activities  included
herein have been subjected to and received the internal approvals required by Diamondback’s management at the appropriate
local, regional and/or corporate level. In addition to the internal approvals as noted, certain development activities may still be
subject  to  specific  partner  AFE  processes,  Joint  Operating  Agreement  (JOA)  requirements  or  other  administrative  approvals
external to Diamondback. Diamondback has provided written documentation supporting their commitment to proceed with the
development  activities  as  presented  to  us.  Additionally,  Diamondback  has  informed  us  that  they  are  not  aware  of  any  legal,
regulatory,  or  political  obstacles  that  would  significantly  alter  their  plans.  While  these  plans  could  change  from  those  under
existing  economic  conditions  as  of  December  31,  2020,  such  changes  were,  in  accordance  with  rules  adopted  by  the  SEC,
omitted from consideration in making this evaluation.

Current costs used by Diamondback were held constant throughout the life of the properties.

Standards of Independence and Professional Qualification

Ryder  Scott  is  an  independent  petroleum  engineering  consulting  firm  that  has  been  providing  petroleum  consulting
services  throughout  the  world  since  1937.  Ryder  Scott  is  employee-owned  and  maintains  offices  in  Houston,  Texas;  Denver,
Colorado; and Calgary, Alberta, Canada. We have approximately eighty engineers and geoscientists on our permanent staff. By
virtue of the size of our firm and the large number of clients for which we provide services, no single client or job represents a
material portion of our annual revenue. We do not serve as officers or directors of any privately-owned or publicly-traded oil and
gas company and are separate and independent from the operating and

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 9

investment decision-making process of our clients. This allows us to bring the highest level of independence and objectivity to
each engagement for our services.

Ryder Scott actively participates in industry-related professional societies and organizes an annual public forum focused
on the subject of reserves evaluations and SEC regulations. Many of our staff have authored or co-authored technical papers on
the  subject  of  reserves  related  topics.  We  encourage  our  staff  to  maintain  and  enhance  their  professional  skills  by  actively
participating in ongoing continuing education.

Prior to becoming an officer of the Company, Ryder Scott requires that staff engineers and geoscientists have received
professional  accreditation  in  the  form  of  a  registered  or  certified  professional  engineer’s  license  or  a  registered  or  certified
professional geoscientist’s license, or the equivalent thereof, from an appropriate governmental authority or a recognized self-
regulating  professional  organization.  Regulating  agencies  require  that,  in  order  to  maintain  active  status,  a  certain  amount  of
continuing education hours be completed annually, including an hour of ethics training. Ryder Scott fully supports this technical
and ethics training with our internal requirement mentioned above.

We are independent petroleum engineers with respect to Diamondback. Neither we nor any of our employees have any
financial interest in the subject properties and neither the employment to do this work nor the compensation is contingent on our
estimates of reserves for the properties which were reviewed.

The  results  of  this  study,  presented  herein,  are  based  on  technical  analysis  conducted  by  teams  of  geoscientists  and
engineers  from  Ryder  Scott.  The  professional  qualifications  of  the  undersigned,  the  technical  person  primarily  responsible  for
overseeing the evaluation of the reserves information discussed in this report, are included as an attachment to this letter.

Terms of Usage

The  results  of  our  third  party  study,  presented  in  report  form  herein,  were  prepared  in  accordance  with  the  disclosure
requirements set forth in the SEC regulations and intended for public disclosure as an exhibit in filings made with the SEC by
Diamondback.

Diamondback  makes  periodic  filings  on  Form  10-K  with  the  SEC  under  the  1934  Exchange  Act.  Furthermore,
Diamondback has certain registration statements filed with the SEC under the 1933 Securities Act into which any subsequently
filed Form 10-K is incorporated by reference. We have consented to the incorporation by reference in the registration statements
on  Form  S-3  of  Diamondback,  of  the  references  to  our  name,  as  well  as  to  the  references  to  our  third  party  report  for
Diamondback, which appears in the December 31, 2020 annual report on Form 10-K of Diamondback. Our written consent for
such use is included as a separate exhibit to the filings made with the SEC by Diamondback.

We have provided Diamondback with a digital version of the original signed copy of this report letter. In the event there
are any differences between the digital version included in filings made by Diamondback and the original signed report letter, the
original signed report letter shall control and supersede the digital version.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Diamondback Energy, Inc. (FANG)
January 7, 2021
Page 10

The data and work papers used in the preparation of this report are available for examination by authorized parties in our

offices. Please contact us if we can be of further service.

Very truly yours,

RYDER SCOTT COMPANY, L.P.
TBPE Firm Registration No. F-1580

/s/ Val Rick Robinson

Val Rick Robinson, P.E.
TBPE License No. 105137
Managing Senior Vice President

/s/ Syed R. Rizvi

Syed R. Rizvi
Senior Petroleum Engineer

[SEAL]

VRR-SRR (GR)/pl

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Professional Qualifications of Primary Technical Engineer

The conclusions presented in this report are the result of technical analysis conducted by teams of geoscientists and engineers
from  Ryder  Scott  Company,  L.P.  Mr.  Val  Rick  Robinson  was  the  primary  technical  person  responsible  for  the  estimate  of  the
reserves, future production and income presented herein.

Mr.  Robinson,  an  employee  of  Ryder  Scott  Company,  L.P.  (Ryder  Scott)  since  2006,  is  a  Managing  Senior  Vice  President
responsible  for  coordinating  and  supervising  staff  and  consulting  engineers  of  the  company  in  ongoing  reservoir  evaluation
studies  worldwide.  Before  joining  Ryder  Scott,  Mr.  Robinson  served  in  a  number  of  engineering  positions  with  ExxonMobil
Corporation. For more information regarding Mr. Robinson’s geographic and job specific experience, please refer to the Ryder
Scott Company website at www.ryderscott.com.

Mr. Robinson earned a Bachelor of Science degree in Chemical Engineering from Brigham Young University in 2003 and is a
licensed Professional Engineer in the State of Texas. He is also a member of the Society of Petroleum Engineers.

In  addition  to  gaining  experience  and  competency  through  prior  work  experience,  the  Texas  Board  of  Professional  Engineers
requires  a  minimum  of  fifteen  hours  of  continuing  education  annually,  including  at  least  one  hour  in  the  area  of  professional
ethics, which Mr. Robinson fulfills. As part of his 2020 continuing education hours, Mr. Robinson attended 51 hours of formalized
training including the 2020 RSC Reserves Conference and various professional society presentations covering such topics as
the definitions and disclosure guidelines contained in the United States Securities and Exchange Commission Title 17, Code of
Federal Regulations, Modernization of Oil and Gas Reporting, Final Rule released January 14, 2009 in the Federal Register, the
SPE/WPC/AAPG/SPEE Petroleum Resources Management System, reservoir engineering, overviews of the various productive
basins of North America, computer software, and professional ethics.

Based  on  his  educational  background,  professional  training  and  more  than  17  years  of  practical  experience  in  the  estimation
and  evaluation  of  petroleum  reserves,  Mr.  Robinson  has  attained  the  professional  qualifications  as  a  Reserves  Estimator  set
forth in Article III of the “Standards Pertaining to the Estimating and Auditing of Oil and Gas Reserves Information” promulgated
by the Society of Petroleum Engineers as of February 19, 2007.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES DEFINITIONS

As Adapted From:
RULE 4-10(a) of REGULATION S-X PART 210
UNITED STATES SECURITIES AND EXCHANGE COMMISSION (SEC)

PREAMBLE

On January 14, 2009, the United States Securities and Exchange Commission (SEC) published the “Modernization of Oil
and  Gas  Reporting;  Final  Rule”  in  the  Federal  Register  of  National  Archives  and  Records  Administration  (NARA).  The
“Modernization of Oil and Gas Reporting; Final Rule” includes revisions and additions to the definition section in Rule 4-10 of
Regulation S-X, revisions and additions to the oil and gas reporting requirements in Regulation S-K, and amends and codifies
Industry  Guide  2  in  Regulation  S-K.  The  “Modernization  of  Oil  and  Gas  Reporting;  Final  Rule”,  including  all  references  to
Regulation S-X and Regulation S-K, shall be referred to herein collectively as the “SEC regulations”. The SEC regulations take
effect  for  all  filings  made  with  the  United  States  Securities  and  Exchange  Commission  as  of  December  31,  2009,  or  after
January 1, 2010. Reference should be made to the full text under Title 17, Code of Federal Regulations, Regulation S-X Part
210,  Rule  4-10(a)  for  the  complete  definitions  (direct  passages  excerpted  in  part  or  wholly  from  the  aforementioned  SEC
document are denoted in italics herein).

Reserves  are  estimated  remaining  quantities  of  oil  and  gas  and  related  substances  anticipated  to  be  economically
producible, as of a given date, by application of development projects to known accumulations. All reserve estimates involve an
assessment of the uncertainty relating the likelihood that the actual remaining quantities recovered will be greater or less than
the  estimated  quantities  determined  as  of  the  date  the  estimate  is  made.  The  uncertainty  depends  chiefly  on  the  amount  of
reliable  geologic  and  engineering  data  available  at  the  time  of  the  estimate  and  the  interpretation  of  these  data.  The  relative
degree of uncertainty may be conveyed by placing reserves into one of two principal classifications, either proved or unproved.
Unproved  reserves  are  less  certain  to  be  recovered  than  proved  reserves  and  may  be  further  sub-classified  as  probable  and
possible  reserves  to  denote  progressively  increasing  uncertainty  in  their  recoverability.  Under  the  SEC  regulations  as  of
December 31, 2009, or after January 1, 2010, a company may optionally disclose estimated quantities of probable or possible
oil and gas reserves in documents publicly filed with the SEC. The SEC regulations continue to prohibit disclosure of estimates
of oil and gas resources other than reserves and any estimated values of such resources in any document publicly filed with the
SEC  unless  such  information  is  required  to  be  disclosed  in  the  document  by  foreign  or  state  law  as  noted  in  §229.1202
Instruction to Item 1202.

Reserves  estimates  will  generally  be  revised  only  as  additional  geologic  or  engineering  data  become  available  or  as

economic conditions change.

Reserves may be attributed to either natural energy or improved recovery methods. Improved recovery methods include
all methods for supplementing natural energy or altering natural forces in the reservoir to increase ultimate recovery. Examples
of such methods are pressure maintenance, natural gas cycling, waterflooding, thermal methods, chemical flooding, and the use
of miscible and immiscible

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES DEFINITIONS
Page 2

displacement  fluids.  Other  improved  recovery  methods  may  be  developed  in  the  future  as  petroleum  technology  continues  to
evolve.

Reserves may be attributed to either conventional or unconventional petroleum accumulations. Petroleum accumulations
are considered as either conventional or unconventional based on the nature of their in-place characteristics, extraction method
applied,  or  degree  of  processing  prior  to  sale.  Examples  of  unconventional  petroleum  accumulations  include  coalbed  or
coalseam  methane  (CBM/CSM),  basin-centered  gas,  shale  gas,  gas  hydrates,  natural  bitumen  and  oil  shale  deposits.  These
unconventional accumulations may require specialized extraction technology and/or significant processing prior to sale.

Reserves do not include quantities of petroleum being held in inventory.

Because  of  the  differences  in  uncertainty,  caution  should  be  exercised  when  aggregating  quantities  of  petroleum  from

different reserves categories.

RESERVES (SEC DEFINITIONS)

Securities and Exchange Commission Regulation S-X §210.4-10(a)(26) defines reserves as follows:

Reserves. Reserves are estimated remaining quantities of oil and gas and related substances anticipated to be economically
producible, as of a given date, by application of development projects to known accumulations. In addition, there must exist, or
there must be a reasonable expectation that there will exist, the legal right to produce or a revenue interest in the production,
installed means of delivering oil and gas or related substances to market, and all permits and financing required to implement
the project.

Note to paragraph (a)(26): Reserves should not be assigned to adjacent reservoirs isolated by major, potentially sealing, faults
until those reservoirs are penetrated and evaluated as economically producible. Reserves should not be assigned to areas that
are  clearly  separated  from  a  known  accumulation  by  a  non-productive  reservoir  (i.e.,  absence  of  reservoir,  structurally  low
reservoir, or negative test results). Such areas may contain prospective resources (i.e., potentially recoverable resources from
undiscovered accumulations).

PROVED RESERVES (SEC DEFINITIONS)

Securities and Exchange Commission Regulation S-X §210.4-10(a)(22) defines proved oil and gas reserves as follows:

Proved oil and gas reserves. Proved oil and gas reserves are those quantities of oil and gas, which, by analysis of geoscience
and  engineering  data,  can  be  estimated  with  reasonable  certainty  to  be  economically  producible—from  a  given  date  forward,
from known reservoirs, and under existing economic conditions, operating methods, and government regulations—prior to the
time  at  which  contracts  providing  the  right  to  operate  expire,  unless  evidence  indicates  that  renewal  is  reasonably  certain,
regardless of whether deterministic or probabilistic methods are used for the estimation. The project to extract the hydrocarbons
must have commenced or the operator must be reasonably certain that it will commence the project within a reasonable time.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES DEFINITIONS
Page 3

(i) The area of the reservoir considered as proved includes:

(A) The area identified by drilling and limited by fluid contacts, if any, and

(B)  Adjacent  undrilled  portions  of  the  reservoir  that  can,  with  reasonable  certainty,  be  judged  to  be  continuous
with  it  and  to  contain  economically  producible  oil  or  gas  on  the  basis  of  available  geoscience  and  engineering
data.

(ii)  In  the  absence  of  data  on  fluid  contacts,  proved  quantities  in  a  reservoir  are  limited  by  the  lowest  known
hydrocarbons  (LKH)  as  seen  in  a  well  penetration  unless  geoscience,  engineering,  or  performance  data  and  reliable
technology establishes a lower contact with reasonable certainty.

(iii) Where direct observation from well penetrations has defined a highest known oil (HKO) elevation and the potential
exists for an associated gas cap, proved oil reserves may be assigned in the structurally higher portions of the reservoir
only  if  geoscience,  engineering,  or  performance  data  and  reliable  technology  establish  the  higher  contact  with
reasonable certainty.

(iv) Reserves which can be produced economically through application of improved recovery techniques (including, but
not limited to, fluid injection) are included in the proved classification when:

(A) Successful testing by a pilot project in an area of the reservoir with properties no more favorable than in the
reservoir  as  a  whole,  the  operation  of  an  installed  program  in  the  reservoir  or  an  analogous  reservoir,  or  other
evidence using reliable technology establishes the reasonable certainty of the engineering analysis on which the
project or program was based; and

(B) The project has been approved for development by all necessary parties and entities, including governmental
entities.

(v)  Existing  economic  conditions  include  prices  and  costs  at  which  economic  producibility  from  a  reservoir  is  to  be
determined.  The  price  shall  be  the  average  price  during  the  12-month  period  prior  to  the  ending  date  of  the  period
covered  by  the  report,  determined  as  an  unweighted  arithmetic  average  of  the  first-day-of-the-month  price  for  each
month  within  such  period,  unless  prices  are  defined  by  contractual  arrangements,  excluding  escalations  based  upon
future conditions.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES STATUS DEFINITIONS AND GUIDELINES

As Adapted From:
RULE 4-10(a) of REGULATION S-X PART 210
UNITED STATES SECURITIES AND EXCHANGE COMMISSION (SEC)

and

2018 PETROLEUM RESOURCES MANAGEMENT SYSTEM (SPE-PRMS)
Sponsored and Approved by:
SOCIETY OF PETROLEUM ENGINEERS (SPE)
WORLD PETROLEUM COUNCIL (WPC)
AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS (AAPG)
SOCIETY OF PETROLEUM EVALUATION ENGINEERS (SPEE)
SOCIETY OF EXPLORATION GEOPHYSICISTS (SEG)
SOCIETY OF PETROPHYSICISTS AND WELL LOG ANALYSTS (SPWLA)
EUROPEAN ASSOCIATION OF GEOSCIENTISTS & ENGINEERS (EAGE)

Reserves status categories define the development and producing status of wells and reservoirs. Reference should be
made  to  Title  17,  Code  of  Federal  Regulations,  Regulation  S-X  Part  210,  Rule  4-10(a)  and  the  SPE-PRMS  as  the  following
reserves  status  definitions  are  based  on  excerpts  from  the  original  documents  (direct  passages  excerpted  from  the
aforementioned SEC and SPE-PRMS documents are denoted in italics herein).

DEVELOPED RESERVES (SEC DEFINITIONS)

Securities  and  Exchange  Commission  Regulation  S-X  §210.4-10(a)(6)  defines  developed  oil  and  gas  reserves  as

follows:

Developed oil and gas reserves are reserves of any category that can be expected to be recovered:

(i)  Through  existing  wells  with  existing  equipment  and  operating  methods  or  in  which  the  cost  of  the  required
equipment is relatively minor compared to the cost of a new well; and

(ii)  Through  installed  extraction  equipment  and  infrastructure  operational  at  the  time  of  the  reserves  estimate  if
the extraction is by means not involving a well.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES STATUS DEFINITIONS AND GUIDELINES
Page 2

Developed Producing (SPE-PRMS Definitions)

While not a requirement for disclosure under the SEC regulations, developed oil and gas reserves may be further sub-

classified according to the guidance contained in the SPE-PRMS as Producing or Non-Producing.

Developed Producing Reserves
Developed  Producing  Reserves  are  expected  quantities  to  be  recovered  from  completion  intervals  that  are  open  and
producing at the effective date of the estimate.

Improved recovery reserves are considered producing only after the improved recovery project is in operation.

Developed Non-Producing
Developed Non-Producing Reserves include shut-in and behind-pipe Reserves.

Shut-In
Shut-in Reserves are expected to be recovered from:

(1)    completion intervals that are open at the time of the estimate but which have not yet started producing;
(2)    wells which were shut-in for market conditions or pipeline connections; or
(3)    wells not capable of production for mechanical reasons.

Behind-Pipe
Behind-pipe Reserves are expected to be recovered from zones in existing wells that will require additional completion
work or future re-completion before start of production with minor cost to access these reserves.

In all cases, production can be initiated or restored with relatively low expenditure compared to the cost of drilling a new
well.

UNDEVELOPED RESERVES (SEC DEFINITIONS)

Securities  and  Exchange  Commission  Regulation  S-X  §210.4-10(a)(31)  defines  undeveloped  oil  and  gas  reserves  as

follows:

Undeveloped oil and gas reserves are reserves of any category 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.

(i)    Reserves on undrilled acreage shall be limited to those directly offsetting development spacing areas that
are reasonably certain of production when drilled, unless evidence using reliable technology exists that
establishes reasonable certainty of economic producibility at greater distances.

(ii)  Undrilled  locations  can  be  classified  as  having  undeveloped  reserves  only  if  a  development  plan  has  been
adopted indicating that they are scheduled to be drilled within five years, unless the specific circumstances, justify
a longer time.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES STATUS DEFINITIONS AND GUIDELINES
Page 3

(iii) Under no circumstances shall estimates for 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 projects in the same reservoir or an analogous reservoir, as defined in paragraph
(a)(2) of this section, or by other evidence using reliable technology establishing reasonable certainty.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Exhibit 99.2

VIPER ENERGY PARTNERS, LP

Estimated

Future Reserves and Income

Attributable to Certain

Royalty Interests

SEC Parameters

As of

December 31, 2020

/s/ Val Rick Robinson
Val Rick Robinson, P.E.
TBPE License No. 105137
Managing Senior Vice President

[SEAL]

/s/ Syed R. Rizvi
Syed R. Rizvi
Senior Petroleum Engineer

RYDER SCOTT COMPANY, L.P.
TBPE Firm Registration No. F-1580

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 1

Viper Energy Partners, LP
500 West Texas, Suite 1210
Midland, Texas 79701

Ladies and Gentlemen:

January 7, 2021

At  your  request,  Ryder  Scott  Company,  L.P.  (Ryder  Scott)  has  prepared  an  estimate  of  the  proved  reserves,  future
production,  and  income  attributable  to  certain  royalty  interests  of  Viper  Energy  Partners,  LP  (Viper),  a  subsidiary  of
Diamondback Energy, Inc. (Diamondback) as of December 31, 2020. The subject properties are located in the states of New
Mexico  and  Texas.  The  reserves  and  income  data  were  estimated  based  on  the  definitions  and  disclosure  guidelines  of  the
United States Securities and Exchange Commission (SEC) contained in Title 17, Code of Federal Regulations, Modernization of
Oil and Gas Reporting, Final Rule released January 14, 2009 in the Federal Register (SEC regulations). Our third party study,
completed on January 7, 2021 and presented herein, was prepared for public disclosure by Viper in filings made with the SEC in
accordance with the disclosure requirements set forth in the SEC regulations.

The properties evaluated by Ryder Scott represent 100 percent of the total net proved liquid hydrocarbon reserves and

100 percent of the total net proved gas reserves of Viper as of December 31, 2020.

The estimated reserves and future net income amounts presented in this report, as of December 31, 2020 are related to
hydrocarbon prices. The hydrocarbon prices used in the preparation of this report are based on the average prices during the
12-month period prior to the “as of date” of this report, determined as the unweighted arithmetic averages of the prices in effect
on  the  first-day-of-the-month  for  each  month  within  such  period,  unless  prices  were  defined  by  contractual  arrangements,  as
required by the SEC regulations. Actual future prices may vary considerably from the prices required by SEC regulations. The
recoverable reserves volumes and the income attributable thereto have a direct relationship to the hydrocarbon prices actually
received; therefore, volumes of reserves actually recovered and the amounts of income actually received may differ significantly
from the estimated quantities presented in this report. The results of this study are summarized as follows.

SUITE 800, 350 7TH AVENUE, S.W.    CALGARY, ALBERTA T2P 3N9    TEL (403) 262-2799    FAX (403) 262-2790
633 17TH STREET, SUITE 1700    DENVER, COLORADO 80202    TEL (303) 339-8110    

Viper Energy Partners, LP
January 7, 2021
Page 2

SEC PARAMETERS
Estimated Net Reserves and Income Data
Certain Royalty Interests of
Viper Energy Partners, LP

As of December 31, 2020

Net Reserves
Oil/Condensate – Mbbl
Plant Products – Mbbl
Gas – MMcf
MBOE

Income Data ($M)
Future Gross Revenue
Deductions
Future Net Income (FNI)

Developed
Producing

Proved

Undeveloped

40,220
16,724
93,617
72,547

17,310
5,229
25,833
26,845

Total
Proved

57,530
21,953
119,450
99,392

$1,655,550 
40,396
$1,615,154 

$681,227 
17,396
$663,831 

$2,336,777 
57,792
$2,278,985 

Discounted FNI @ 10%

$735,245 

$299,215 

$1,034,460 

Liquid hydrocarbons are expressed in standard 42 U.S. gallon barrels and shown herein as thousands of barrels (Mbbl).
All  gas  volumes  are  reported  on  an  “as  sold  basis”  expressed  in  millions  of  cubic  feet  (MMcf)  at  the  official  temperature  and
pressure bases of the areas in which the gas reserves are located. The net reserves are also shown herein on an equivalent
unit basis wherein natural gas is converted to oil equivalent using a factor of 6,000 cubic feet of natural gas per one barrel of oil
equivalent.  MBOE  means  thousand  barrels  of  oil  equivalent.  In  this  report,  the  revenues,  deductions,  and  income  data  are
expressed as thousands of U.S. dollars ($M).

The estimates of the reserves, future production, and income attributable to properties in this report were prepared using
the economic software package ARIES  Petroleum Economics and Reserves Software, a copyrighted program of Halliburton.
The program was used at the request of Viper. Ryder Scott has found this program to be generally acceptable, but notes that
certain  summaries  and  calculations  may  vary  due  to  rounding  and  may  not  exactly  match  the  sum  of  the  properties  being
summarized. Furthermore, one line economic summaries may vary slightly from the more detailed cash flow projections of the
same properties, also due to rounding. The rounding differences are not material.

TM

The future gross revenue is after the deduction of production taxes. Because the interests evaluated herein are royalty
interests,  the  deductions  include  only  ad  valorem  taxes.  The  future  net  income  is  before  the  deduction  of  state  and  federal
income taxes and general administrative overhead, and has not been adjusted for outstanding loans that may exist nor does it
include any adjustment for cash on hand or undistributed income.

Liquid hydrocarbon reserves account for approximately 98 percent and gas reserves account for the remaining 2 percent

of total future gross revenue from proved reserves.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 3

    The discounted future net income shown above was calculated using a discount rate of 10 percent per annum compounded
monthly. Future net income was discounted at four other discount rates, which were also compounded monthly. These results
are shown in summary form as follows.

Discount Rate
Percent

5
15
20
30

Discounted Future Net Income ($M)
As of December 31, 2020
Total
Proved

$1,400,650
$834,772
$707,659
$552,728

The results shown above are presented for your information and should not be construed as our estimate of fair market

value.

Reserves Included in This Report

The proved reserves included herein conform to the definition as set forth in the Securities and Exchange Commission’s
Regulations  Part  210.4-10(a).  An  abridged  version  of  the  SEC  reserves  definitions  from  210.4-10(a)  entitled  “PETROLEUM
RESERVES DEFINITIONS” is included as an attachment to this report.

The  various  reserves  status  categories  are  defined  in  the  attachment  entitled  “PETROLEUM  RESERVES  STATUS

DEFINITIONS AND GUIDELINES” in this report.

No attempt was made to quantify or otherwise account for any accumulated gas production imbalances that may exist.

The proved gas volumes presented herein do not include volumes of gas consumed in operations as reserves.

Reserves  are  “estimated  remaining  quantities  of  oil  and  gas  and  related  substances  anticipated  to  be  economically
producible, as of a given date, by application of development projects to known accumulations.” All reserves estimates involve
an  assessment  of  the  uncertainty  relating  the  likelihood  that  the  actual  remaining  quantities  recovered  will  be  greater  or  less
than the estimated quantities determined as of the date the estimate is made. The uncertainty depends chiefly on the amount of
reliable  geologic  and  engineering  data  available  at  the  time  of  the  estimate  and  the  interpretation  of  these  data.  The  relative
degree of uncertainty may be conveyed by placing reserves into one of two principal classifications, either proved or unproved.
Unproved reserves are less certain to be recovered than proved reserves and may be further sub-categorized as probable and
possible reserves to denote progressively increasing uncertainty in their recoverability. At Viper’s request, this report addresses
only the proved reserves attributable to the properties evaluated herein.

Proved oil and gas reserves are “those quantities of oil and gas which, by analysis of geoscience and engineering data,
can  be  estimated  with  reasonable  certainty  to  be  economically  producible  from  a  given  date  forward.”  The  proved  reserves
included  herein  were  estimated  using  deterministic  methods.  The  SEC  has  defined  reasonable  certainty  for  proved  reserves,
when based on deterministic methods, as a “high degree of confidence that the quantities will be recovered.”

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 4

Proved reserves estimates will generally be revised only as additional geologic or engineering data become available or
as  economic  conditions  change.  For  proved  reserves,  the  SEC  states  that  “as  changes  due  to  increased  availability  of
geoscience  (geological,  geophysical,  and  geochemical),  engineering,  and  economic  data  are  made  to  the  estimated  ultimate
recovery  (EUR)  with  time,  reasonably  certain  EUR  is  much  more  likely  to  increase  or  remain  constant  than  to  decrease.”
Moreover, estimates of proved reserves may be revised as a result of future operations, effects of regulation by governmental
agencies or geopolitical or economic risks. Therefore, the proved reserves included in this report are estimates only and should
not be construed as being exact quantities, and if recovered, the revenues therefrom, and the actual costs related thereto, could
be more or less than the estimated amounts.

Diamondback’s  operations  may  be  subject  to  various  levels  of  governmental  controls  and  regulations.  These  controls
and regulations may include, but may not be limited to, matters relating to land tenure and leasing, the legal rights to produce
hydrocarbons, drilling and production practices, environmental protection, marketing and pricing policies, royalties, various taxes
and  levies  including  income  tax  and  are  subject  to  change  from  time  to  time.  Such  changes  in  governmental  regulations  and
policies  may  cause  volumes  of  proved  reserves  actually  recovered  and  amounts  of  proved  income  actually  received  to  differ
significantly from the estimated quantities.

The estimates of proved reserves presented herein were based upon a detailed study of the properties in which Viper
owns an interest; however, we have not made any field examination of the properties. No consideration was given in this report
to  potential  environmental  liabilities  that  may  exist  nor  were  any  costs  included  for  potential  liabilities  to  restore  and  clean  up
damages, if any, caused by past operating practices.

Estimates of Reserves

The  estimation  of  reserves  involves  two  distinct  determinations.  The  first  determination  results  in  the  estimation  of  the
quantities of recoverable oil and gas and the second determination results in the estimation of the uncertainty associated with
those  estimated  quantities  in  accordance  with  the  definitions  set  forth  by  the  Securities  and  Exchange  Commission’s
Regulations Part 210.4-10(a). The process of estimating the quantities of recoverable oil and gas reserves relies on the use of
certain generally accepted analytical procedures. These  analytical  procedures  fall  into  three  broad  categories  or  methods:  (1)
performance-based  methods,  (2)  volumetric-based  methods  and  (3)  analogy.  These  methods  may  be  used  individually  or  in
combination by the reserves evaluator in the process of estimating the quantities of reserves. Reserves evaluators must select
the method or combination of methods which in their professional judgment is most appropriate given the nature and amount of
reliable  geoscience  and  engineering  data  available  at  the  time  of  the  estimate,  the  established  or  anticipated  performance
characteristics of the reservoir being evaluated, and the stage of development or producing maturity of the property.

In many cases, the analysis of the available geoscience and engineering data and the subsequent interpretation of this
data may indicate a range of possible outcomes in an estimate, irrespective of the method selected by the evaluator. When a
range  in  the  quantity  of  reserves  is  identified,  the  evaluator  must  determine  the  uncertainty  associated  with  the  incremental
quantities of the reserves. If the reserves quantities are estimated using the deterministic incremental approach, the uncertainty
for  each  discrete  incremental  quantity  of  the  reserves  is  addressed  by  the  reserves  category  assigned  by  the  evaluator.
Therefore,  it  is  the  categorization  of  reserves  quantities  as  proved,  probable  and/or  possible  that  addresses  the  inherent
uncertainty in the estimated quantities reported. For proved reserves, uncertainty is defined by the SEC as reasonable certainty
wherein the “quantities actually recovered are much more

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 5

likely be achieved than not.” The SEC states that “probable reserves are those additional reserves that are less certain to be
recovered than proved reserves but which, together with proved reserves, are as likely as not to be recovered.” The SEC states
that “possible reserves are those additional reserves that are less certain to be recovered than probable reserves and the total
quantities ultimately recovered from a project have a low probability of exceeding proved plus probable plus possible reserves.”
All quantities of reserves within the same reserves category must meet the SEC definitions as noted above.

Estimates  of  reserves  quantities  and  their  associated  reserves  categories  may  be  revised  in  the  future  as  additional
geoscience or engineering data become available. Furthermore, estimates of reserves quantities and their associated reserves
categories may also be revised due to other factors such as changes in economic conditions, results of future operations, effects
of regulation by governmental agencies or geopolitical or economic risks as previously noted herein.

The  proved  reserves  for  the  properties  included  herein  were  estimated  by  performance  methods,  analogy,  or  a
combination  of  methods.  Approximately  90  percent  of  the  proved  producing  reserves  attributable  to  producing  wells  and/or
reservoirs were estimated by performance methods or a combination of methods. These performance methods include, but may
not be limited to, decline curve analysis which utilized extrapolations of historical production and pressure data available through
December,  2020  in  those  cases  where  such  data  were  considered  to  be  definitive.  The  data  utilized  in  this  analysis  were
furnished to Ryder Scott by Diamondback or obtained from public data sources and were considered sufficient for the purpose
thereof. The remaining 10 percent of the proved producing reserves were estimated by analogy, or a combination of methods.
These methods were used where there were inadequate historical performance data to establish a definitive trend and where
the use of production performance data as a basis for the reserves estimates was considered to be inappropriate.

All proved undeveloped reserves included herein were estimated by the analogy method.

To estimate economically recoverable proved oil and gas reserves and related future net cash flows, we consider many
factors and assumptions including, but not limited to, the use of reservoir parameters derived from geological, geophysical and
engineering data which cannot be measured directly, economic criteria based on current costs and SEC pricing requirements,
and  forecasts  of  future  production  rates.  Under  the  SEC  regulations  210.4-10(a)(22)(v)  and  (26),  proved  reserves  must  be
anticipated to be economically producible from a given date forward based on existing economic conditions including the prices
and costs at which economic producibility from a reservoir is to be determined. While it may reasonably be anticipated that the
future  prices  received  for  the  sale  of  production  and  the  operating  costs  and  other  costs  relating  to  such  production  may
increase or decrease from those under existing economic conditions, such changes were, in accordance with rules adopted by
the SEC, omitted from consideration in making this evaluation.

Diamondback  has  informed  us  that  they  have  furnished  us  all  of  the  material  accounts,  records,  geological  and
engineering data, and reports and other data required for this investigation. In preparing our forecast of future proved production
and income, we have relied upon data furnished by Diamondback with respect to property interests owned, production and well
tests  from  examined  wells,  normal  direct  costs  of  operating  the  wells  or  leases,  other  costs  such  as  transportation  and/or
processing  fees,  ad  valorem  and  production  taxes,  recompletion  and  development  costs,  development  plans,  abandonment
costs  after  salvage,  product  prices  based  on  the  SEC  regulations,  adjustments  or  differentials  to  product  prices,  geological
structural  and  isochore  maps,  well  logs,  and  pressure  measurements.  Ryder  Scott  reviewed  such  factual  data  for  its
reasonableness;  however,  we  have  not  conducted  an  independent  verification  of  the  data  furnished  by  Diamondback.  We
consider the factual data used in this report appropriate and sufficient for the purpose of preparing the estimates of reserves and
future net revenues herein.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 6

In summary, we consider the assumptions, data, methods and analytical procedures used in this report appropriate for
the purpose hereof, and we have used all such methods and procedures that we consider necessary and appropriate to prepare
the estimates of reserves herein. The proved reserves included herein were determined in conformance with the United States
Securities  and  Exchange  Commission  (SEC)  Modernization  of  Oil  and  Gas  Reporting;  Final  Rule,  including  all  references  to
Regulation S-X and Regulation S-K, referred to herein collectively as the “SEC Regulations.” In our opinion, the proved reserves
presented in this report comply with the definitions, guidelines and disclosure requirements as required by the SEC regulations.

Future Production Rates

For wells currently on production, our forecasts of future production rates are based on historical performance data. If no
production decline trend has been established, future production rates were based on analog well performance and type-curves
where  appropriate,  until  a  decline  in  ability  to  produce  was  anticipated.  An  estimated  rate  of  decline  was  then  applied  until
depletion  of  the  reserves.  If  a  decline  trend  has  been  established,  this  trend  was  used  as  the  basis  for  estimating  future
production rates.

Test data and other related information were used to estimate the anticipated initial production rates for those locations
that are not currently producing. For reserves not yet on production, sales were estimated to commence at an anticipated date
furnished by Diamondback. Locations that are not currently producing may start producing earlier or later than anticipated in our
estimates due to unforeseen factors causing a change in the timing to initiate production. Such factors may include delays due
to  weather,  the  availability  of  rigs,  the  sequence  of  drilling,  completing  and/or  recompleting  wells  and/or  constraints  set  by
regulatory bodies.

The future production rates from wells currently on production or locations that are not currently producing may be more
or less than estimated because of changes including, but not limited to, reservoir performance, operating conditions related to
surface facilities, compression and artificial lift, pipeline capacity and/or operating conditions, producing market demand and/or
allowables or other constraints set by regulatory bodies.

Hydrocarbon Prices

The hydrocarbon prices used herein are based on SEC price parameters using the average prices during the 12-month
period prior to the “as of date” of this report, determined as the unweighted arithmetic averages of the prices in effect on the first-
day-of-the-month for each month within such period, unless prices were defined by contractual arrangements. For hydrocarbon
products  sold  under  contract,  the  contract  prices,  including  fixed  and  determinable  escalations,  exclusive  of  inflation
adjustments,  were  used  until  expiration  of  the  contract.  Upon  contract  expiration,  the  prices  were  adjusted  to  the  12-month
unweighted arithmetic average as previously described.

Diamondback furnished us with the above mentioned average prices in effect on December 31, 2020. These initial SEC
hydrocarbon  prices  were  determined  using  the  12-month  average  first-day-of-the-month  benchmark  prices  appropriate  to  the
geographic  area  where  the  hydrocarbons  are  sold.  These  benchmark  prices  are  prior  to  the  adjustments  for  differentials  as
described  herein.  The  table  below  summarizes  the  “benchmark  prices”  and  “price  reference”  used  for  the  geographic  area
included  in  the  report.  In  certain  geographic  areas,  the  price  reference  and  benchmark  prices  may  be  defined  by  contractual
arrangements.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 7

The product prices which were actually used to determine the future gross revenue for each property reflect adjustments
to  the  benchmark  prices  for  gravity,  quality,  local  conditions,  and/or  distance  from  market,  referred  to  herein  as  “differentials.”
The differentials used in the preparation of this report were furnished to us by Diamondback. The differentials furnished to us
were accepted as factual data and reviewed by us for their reasonableness; however, we have not conducted an independent
verification of the data used by Diamondback to determine these differentials.

In addition, the table below summarizes the net volume weighted benchmark prices adjusted for differentials and referred
to herein as the “average realized prices.” The average realized prices shown in the table below were determined from the total
future gross revenue before production taxes and the total net reserves for the geographic area and presented in accordance
with SEC disclosure requirements for the geographic area included in the report.

Geographic Area
North America

United States

Product

Oil/Condensate
NGLs
Gas

Price
Reference

WTI Cushing
WTI Cushing
Henry Hub

Average
Benchmark
Prices

$39.57/bbl
$39.57/bbl
$1.99/MMBTU

Average Realized
Prices

$37.61/bbl
$11.65/bbl
$0.34/Mcf

The  effects  of  derivative  instruments  designated  as  price  hedges  of  oil  and  gas  quantities  are  not  reflected  in  our

individual property evaluations.

Costs

As  a  holder  of  royalty  interests  only,  Viper  bears  none  of  the  operating  or  development  costs  associated  with  the
underlying properties of this report. Nevertheless, the proved undeveloped reserves in this report have been incorporated herein
in  accordance  with  Diamondback’s  plans  to  develop  these  reserves  as  of  December  31,  2020.  The  implementation  of
Diamondback’s development plans as presented to us and incorporated herein is subject to the approval process adopted by
Diamondback’s  management.  As  the  result  of  our  inquiries  during  the  course  of  preparing  this  report,  Diamondback  has
informed us that the development activities included herein have been subjected to and received the internal approvals required
by Diamondback’s management at the appropriate local, regional and/or corporate level. In addition to the internal approvals as
noted, certain development activities may still be subject to specific partner AFE processes, Joint Operating Agreement (JOA)
requirements  or  other  administrative  approvals  external  to  Diamondback.  Diamondback  has  provided  written  documentation
supporting  their  commitment  to  proceed  with  the  development  activities  as  presented  to  us.  Additionally,  Diamondback  has
informed us that they are not aware of any legal, regulatory, or political obstacles that would significantly alter their plans. While
these  plans  could  change  from  those  under  existing  economic  conditions  as  of  December  31,  2020,  such  changes  were,  in
accordance with rules adopted by the SEC, omitted from consideration in making this evaluation.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 8

Standards of Independence and Professional Qualification

Ryder  Scott  is  an  independent  petroleum  engineering  consulting  firm  that  has  been  providing  petroleum  consulting
services  throughout  the  world  since  1937.  Ryder  Scott  is  employee-owned  and  maintains  offices  in  Houston,  Texas;  Denver,
Colorado; and Calgary, Alberta, Canada. We have approximately eighty engineers and geoscientists on our permanent staff. By
virtue of the size of our firm and the large number of clients for which we provide services, no single client or job represents a
material portion of our annual revenue. We do not serve as officers or directors of any privately-owned or publicly-traded oil and
gas company and are separate and independent from the operating and investment decision-making process of our clients. This
allows us to bring the highest level of independence and objectivity to each engagement for our services.

Ryder Scott actively participates in industry-related professional societies and organizes an annual public forum focused
on the subject of reserves evaluations and SEC regulations. Many of our staff have authored or co-authored technical papers on
the  subject  of  reserves  related  topics.  We  encourage  our  staff  to  maintain  and  enhance  their  professional  skills  by  actively
participating in ongoing continuing education.

Prior to becoming an officer of the Company, Ryder Scott requires that staff engineers and geoscientists have received
professional  accreditation  in  the  form  of  a  registered  or  certified  professional  engineer’s  license  or  a  registered  or  certified
professional geoscientist’s license, or the equivalent thereof, from an appropriate governmental authority or a recognized self-
regulating  professional  organization.  Regulating  agencies  require  that,  in  order  to  maintain  active  status,  a  certain  amount  of
continuing education hours be completed annually, including an hour of ethics training. Ryder Scott fully supports this technical
and ethics training with our internal requirement mentioned above.

We are independent petroleum engineers with respect to Viper. Neither we nor any of our employees have any financial
interest  in  the  subject  properties  and  neither  the  employment  to  do  this  work  nor  the  compensation  is  contingent  on  our
estimates of reserves for the properties which were reviewed.

The  results  of  this  study,  presented  herein,  are  based  on  technical  analysis  conducted  by  teams  of  geoscientists  and
engineers  from  Ryder  Scott.  The  professional  qualifications  of  the  undersigned,  the  technical  person  primarily  responsible  for
overseeing the evaluation of the reserves information discussed in this report, are included as an attachment to this letter.

Terms of Usage

The  results  of  our  third  party  study,  presented  in  report  form  herein,  were  prepared  in  accordance  with  the  disclosure
requirements set forth in the SEC regulations and intended for public disclosure as an exhibit in filings made with the SEC by
Viper.

Viper makes periodic filings on Form 10-K with the SEC under the 1934 Exchange Act. Furthermore, Viper has certain
registration  statements  filed  with  the  SEC  under  the  1933  Securities  Act  into  which  any  subsequently  filed  Form  10-K  is
incorporated by reference. We have consented to the incorporation by reference in the registration statements on Form S-3 of
Viper,  of  the  references  to  our  name,  as  well  as  to  the  references  to  our  third  party  report  for  Viper,  which  appears  in  the
December 31, 2020 annual report on Form 10-K of Viper. Our written consent for such use is included as a separate exhibit to
the filings made with the SEC by Viper.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 9

We have provided Viper with a digital version of the original signed copy of this report letter. In the event there are any
differences between the digital version included in filings made by Viper and the original signed report letter, the original signed
report letter shall control and supersede the digital version.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Viper Energy Partners, LP
January 7, 2021
Page 10

The data and work papers used in the preparation of this report are available for examination by authorized parties in our

offices. Please contact us if we can be of further service.

Very truly yours,

RYDER SCOTT COMPANY, L.P.
TBPE Firm Registration No. F-1580

/s/ Val Rick Robinson

Val Rick Robinson, P.E.
TBPE License No. 105137
Managing Senior Vice President

/s/ Syed R. Rizvi

Syed R. Rizvi
Senior Petroleum Engineer

[SEAL]

VRR-SRR (GR)/pl

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

Professional Qualifications of Primary Technical Engineer

The conclusions presented in this report are the result of technical analysis conducted by teams of geoscientists and engineers
from  Ryder  Scott  Company,  L.P.  Mr.  Val  Rick  Robinson  was  the  primary  technical  person  responsible  for  the  estimate  of  the
reserves, future production and income presented herein.

Mr.  Robinson,  an  employee  of  Ryder  Scott  Company,  L.P.  (Ryder  Scott)  since  2006,  is  a  Managing  Senior  Vice  President
responsible  for  coordinating  and  supervising  staff  and  consulting  engineers  of  the  company  in  ongoing  reservoir  evaluation
studies  worldwide.  Before  joining  Ryder  Scott,  Mr.  Robinson  served  in  a  number  of  engineering  positions  with  ExxonMobil
Corporation. For more information regarding Mr. Robinson’s geographic and job specific experience, please refer to the Ryder
Scott Company website at www.ryderscott.com.

Mr. Robinson earned a Bachelor of Science degree in Chemical Engineering from Brigham Young University in 2003 and is a
licensed Professional Engineer in the State of Texas. He is also a member of the Society of Petroleum Engineers.

In  addition  to  gaining  experience  and  competency  through  prior  work  experience,  the  Texas  Board  of  Professional  Engineers
requires  a  minimum  of  fifteen  hours  of  continuing  education  annually,  including  at  least  one  hour  in  the  area  of  professional
ethics, which Mr. Robinson fulfills. As part of his 2020 continuing education hours, Mr. Robinson attended 51 hours of formalized
training including the 2020 RSC Reserves Conference and various professional society presentations covering such topics as
the definitions and disclosure guidelines contained in the United States Securities and Exchange Commission Title 17, Code of
Federal Regulations, Modernization of Oil and Gas Reporting, Final Rule released January 14, 2009 in the Federal Register, the
SPE/WPC/AAPG/SPEE Petroleum Resources Management System, reservoir engineering, overviews of the various productive
basins of North America, computer software, and professional ethics.

Based  on  his  educational  background,  professional  training  and  more  than  17  years  of  practical  experience  in  the  estimation
and  evaluation  of  petroleum  reserves,  Mr.  Robinson  has  attained  the  professional  qualifications  as  a  Reserves  Estimator  set
forth in Article III of the “Standards Pertaining to the Estimating and Auditing of Oil and Gas Reserves Information” promulgated
by the Society of Petroleum Engineers as of February 19, 2007.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES DEFINITIONS

As Adapted From:
RULE 4-10(a) of REGULATION S-X PART 210
UNITED STATES SECURITIES AND EXCHANGE COMMISSION (SEC)

PREAMBLE

On January 14, 2009, the United States Securities and Exchange Commission (SEC) published the “Modernization of Oil
and  Gas  Reporting;  Final  Rule”  in  the  Federal  Register  of  National  Archives  and  Records  Administration  (NARA).  The
“Modernization of Oil and Gas Reporting; Final Rule” includes revisions and additions to the definition section in Rule 4-10 of
Regulation S-X, revisions and additions to the oil and gas reporting requirements in Regulation S-K, and amends and codifies
Industry  Guide  2  in  Regulation  S-K.  The  “Modernization  of  Oil  and  Gas  Reporting;  Final  Rule”,  including  all  references  to
Regulation S-X and Regulation S-K, shall be referred to herein collectively as the “SEC regulations”. The SEC regulations take
effect  for  all  filings  made  with  the  United  States  Securities  and  Exchange  Commission  as  of  December  31,  2009,  or  after
January 1, 2010. Reference should be made to the full text under Title 17, Code of Federal Regulations, Regulation S-X Part
210,  Rule  4-10(a)  for  the  complete  definitions  (direct  passages  excerpted  in  part  or  wholly  from  the  aforementioned  SEC
document are denoted in italics herein).

Reserves  are  estimated  remaining  quantities  of  oil  and  gas  and  related  substances  anticipated  to  be  economically
producible, as of a given date, by application of development projects to known accumulations. All reserve estimates involve an
assessment of the uncertainty relating the likelihood that the actual remaining quantities recovered will be greater or less than
the  estimated  quantities  determined  as  of  the  date  the  estimate  is  made.  The  uncertainty  depends  chiefly  on  the  amount  of
reliable  geologic  and  engineering  data  available  at  the  time  of  the  estimate  and  the  interpretation  of  these  data.  The  relative
degree of uncertainty may be conveyed by placing reserves into one of two principal classifications, either proved or unproved.
Unproved  reserves  are  less  certain  to  be  recovered  than  proved  reserves  and  may  be  further  sub-classified  as  probable  and
possible  reserves  to  denote  progressively  increasing  uncertainty  in  their  recoverability.  Under  the  SEC  regulations  as  of
December 31, 2009, or after January 1, 2010, a company may optionally disclose estimated quantities of probable or possible
oil and gas reserves in documents publicly filed with the SEC. The SEC regulations continue to prohibit disclosure of estimates
of oil and gas resources other than reserves and any estimated values of such resources in any document publicly filed with the
SEC  unless  such  information  is  required  to  be  disclosed  in  the  document  by  foreign  or  state  law  as  noted  in  §229.1202
Instruction to Item 1202.

Reserves  estimates  will  generally  be  revised  only  as  additional  geologic  or  engineering  data  become  available  or  as

economic conditions change.

Reserves may be attributed to either natural energy or improved recovery methods. Improved recovery methods include
all methods for supplementing natural energy or altering natural forces in the reservoir to increase ultimate recovery. Examples
of such methods are pressure maintenance, natural gas cycling, waterflooding, thermal methods, chemical flooding, and the use
of miscible and immiscible displacement fluids. Other improved recovery methods may be developed in the future as petroleum
technology continues to evolve.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES DEFINITIONS
Page 2

Reserves may be attributed to either conventional or unconventional petroleum accumulations. Petroleum accumulations
are considered as either conventional or unconventional based on the nature of their in-place characteristics, extraction method
applied,  or  degree  of  processing  prior  to  sale.  Examples  of  unconventional  petroleum  accumulations  include  coalbed  or
coalseam  methane  (CBM/CSM),  basin-centered  gas,  shale  gas,  gas  hydrates,  natural  bitumen  and  oil  shale  deposits.  These
unconventional accumulations may require specialized extraction technology and/or significant processing prior to sale.

Reserves do not include quantities of petroleum being held in inventory.

Because  of  the  differences  in  uncertainty,  caution  should  be  exercised  when  aggregating  quantities  of  petroleum  from

different reserves categories.

RESERVES (SEC DEFINITIONS)

Securities and Exchange Commission Regulation S-X §210.4-10(a)(26) defines reserves as follows:

Reserves. Reserves are estimated remaining quantities of oil and gas and related substances anticipated to be economically
producible, as of a given date, by application of development projects to known accumulations. In addition, there must exist, or
there must be a reasonable expectation that there will exist, the legal right to produce or a revenue interest in the production,
installed means of delivering oil and gas or related substances to market, and all permits and financing required to implement
the project.

Note to paragraph (a)(26): Reserves should not be assigned to adjacent reservoirs isolated by major, potentially sealing, faults
until those reservoirs are penetrated and evaluated as economically producible. Reserves should not be assigned to areas that
are  clearly  separated  from  a  known  accumulation  by  a  non-productive  reservoir  (i.e.,  absence  of  reservoir,  structurally  low
reservoir, or negative test results). Such areas may contain prospective resources (i.e., potentially recoverable resources from
undiscovered accumulations).

PROVED RESERVES (SEC DEFINITIONS)

Securities and Exchange Commission Regulation S-X §210.4-10(a)(22) defines proved oil and gas reserves as follows:

Proved oil and gas reserves. Proved oil and gas reserves are those quantities of oil and gas, which, by analysis of geoscience
and  engineering  data,  can  be  estimated  with  reasonable  certainty  to  be  economically  producible—from  a  given  date  forward,
from known reservoirs, and under existing economic conditions, operating methods, and government regulations—prior  to  the
time  at  which  contracts  providing  the  right  to  operate  expire,  unless  evidence  indicates  that  renewal  is  reasonably  certain,
regardless of whether deterministic or probabilistic methods are used for the estimation. The project to extract the hydrocarbons
must have commenced or the operator must be reasonably certain that it will commence the project within a reasonable time.

(i) The area of the reservoir considered as proved includes:

(A) The area identified by drilling and limited by fluid contacts, if any, and

(B)  Adjacent  undrilled  portions  of  the  reservoir  that  can,  with  reasonable  certainty,  be  judged  to  be  continuous
with  it  and  to  contain  economically  producible  oil  or  gas  on  the  basis  of  available  geoscience  and  engineering
data.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES DEFINITIONS
Page 3

(ii)  In  the  absence  of  data  on  fluid  contacts,  proved  quantities  in  a  reservoir  are  limited  by  the  lowest  known
hydrocarbons  (LKH)  as  seen  in  a  well  penetration  unless  geoscience,  engineering,  or  performance  data  and  reliable
technology establishes a lower contact with reasonable certainty.

(iii) Where direct observation from well penetrations has defined a highest known oil (HKO) elevation and the potential
exists for an associated gas cap, proved oil reserves may be assigned in the structurally higher portions of the reservoir
only  if  geoscience,  engineering,  or  performance  data  and  reliable  technology  establish  the  higher  contact  with
reasonable certainty.

(iv) Reserves which can be produced economically through application of improved recovery techniques (including, but
not limited to, fluid injection) are included in the proved classification when:

(A) Successful testing by a pilot project in an area of the reservoir with properties no more favorable than in the
reservoir  as  a  whole,  the  operation  of  an  installed  program  in  the  reservoir  or  an  analogous  reservoir,  or  other
evidence using reliable technology establishes the reasonable certainty of the engineering analysis on which the
project or program was based; and

(B) The project has been approved for development by all necessary parties and entities, including governmental
entities.

(v)  Existing  economic  conditions  include  prices  and  costs  at  which  economic  producibility  from  a  reservoir  is  to  be
determined.  The  price  shall  be  the  average  price  during  the  12-month  period  prior  to  the  ending  date  of  the  period
covered  by  the  report,  determined  as  an  unweighted  arithmetic  average  of  the  first-day-of-the-month  price  for  each
month  within  such  period,  unless  prices  are  defined  by  contractual  arrangements,  excluding  escalations  based  upon
future conditions.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES STATUS DEFINITIONS AND GUIDELINES

As Adapted From:
RULE 4-10(a) of REGULATION S-X PART 210
UNITED STATES SECURITIES AND EXCHANGE COMMISSION (SEC)

and

2018 PETROLEUM RESOURCES MANAGEMENT SYSTEM (SPE-PRMS)
Sponsored and Approved by:
SOCIETY OF PETROLEUM ENGINEERS (SPE)
WORLD PETROLEUM COUNCIL (WPC)
AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS (AAPG)
SOCIETY OF PETROLEUM EVALUATION ENGINEERS (SPEE)
SOCIETY OF EXPLORATION GEOPHYSICISTS (SEG)
SOCIETY OF PETROPHYSICISTS AND WELL LOG ANALYSTS (SPWLA)
EUROPEAN ASSOCIATION OF GEOSCIENTISTS & ENGINEERS (EAGE)

Reserves status categories define the development and producing status of wells and reservoirs. Reference should be
made  to  Title  17,  Code  of  Federal  Regulations,  Regulation  S-X  Part  210,  Rule  4-10(a)  and  the  SPE-PRMS  as  the  following
reserves  status  definitions  are  based  on  excerpts  from  the  original  documents  (direct  passages  excerpted  from  the
aforementioned SEC and SPE-PRMS documents are denoted in italics herein).

DEVELOPED RESERVES (SEC DEFINITIONS)

Securities  and  Exchange  Commission  Regulation  S-X  §210.4-10(a)(6)  defines  developed  oil  and  gas  reserves  as

follows:

Developed oil and gas reserves are reserves of any category that can be expected to be recovered:

(i)  Through  existing  wells  with  existing  equipment  and  operating  methods  or  in  which  the  cost  of  the  required
equipment is relatively minor compared to the cost of a new well; and

(ii)  Through  installed  extraction  equipment  and  infrastructure  operational  at  the  time  of  the  reserves  estimate  if
the extraction is by means not involving a well.

Developed Producing (SPE-PRMS Definitions)

While not a requirement for disclosure under the SEC regulations, developed oil and gas reserves may be further sub-

classified according to the guidance contained in the SPE-PRMS as Producing or Non-Producing.

Developed Producing Reserves
Developed  Producing  Reserves  are  expected  quantities  to  be  recovered  from  completion  intervals  that  are  open  and
producing at the effective date of the estimate.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS

PETROLEUM RESERVES STATUS DEFINITIONS AND GUIDELINES
Page 2

Improved recovery reserves are considered producing only after the improved recovery project is in operation.

Developed Non-Producing
Developed Non-Producing Reserves include shut-in and behind-pipe Reserves.

Shut-In
Shut-in Reserves are expected to be recovered from:

(1)    completion intervals that are open at the time of the estimate but which have not yet started producing;
(2)    wells which were shut-in for market conditions or pipeline connections; or
(3)    wells not capable of production for mechanical reasons.

Behind-Pipe
Behind-pipe Reserves are expected to be recovered from zones in existing wells that will require additional completion
work or future re-completion before start of production with minor cost to access these reserves.

In all cases, production can be initiated or restored with relatively low expenditure compared to the cost of drilling a new
well.

UNDEVELOPED RESERVES (SEC DEFINITIONS)

Securities  and  Exchange  Commission  Regulation  S-X  §210.4-10(a)(31)  defines  undeveloped  oil  and  gas  reserves  as

follows:

Undeveloped oil and gas reserves are reserves of any category 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.

(i) Reserves on undrilled acreage shall be limited to those directly offsetting development spacing areas that are
reasonably certain of production when drilled, unless evidence using reliable technology exists that establishes
reasonable certainty of economic producibility at greater distances.

(ii)  Undrilled  locations  can  be  classified  as  having  undeveloped  reserves  only  if  a  development  plan  has  been
adopted indicating that they are scheduled to be drilled within five years, unless the specific circumstances, justify
a longer time.

(iii) Under no circumstances shall estimates for 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 projects in the same reservoir or an analogous reservoir, as defined in paragraph
(a)(2) of this section, or by other evidence using reliable technology establishing reasonable certainty.

RYDER SCOTT COMPANY PETROLEUM CONSULTANTS