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Noble

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FY2010 Annual Report · Noble
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Noble Corporation
Dorfstrasse 19a
6340 Baar
Switzerland
www.noblecorp.com

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Noble Corporation 2010 Annual Report

 
 
 
 
     Year Ended December 31, 

2010 

2009 

2008 

$2,807,176 

$3,640,784 

$3,446,501 

916,080 

916,509 

773,429 

3.02 

1,654,376 

1,423,484 

12% 

2,010,744 

2,015,902 

1,678,642 

6.42 

2,136,716 

1,431,498 

34% 

1,908,403 

1,912,458 

1,560,995 

5.81 

1,888,192 

1,231,321 

39% 

$11,221,321 

$8,396,896 

$7,106,799 

10,048,087 

6,634,452 

5,647,017 

2,766,697 

7,287,634 

28.89 

750,946 

923,487 

6,788,432 

5,290,715 

26.29 

20.20 

Noble Corporation Financial Highlights

(In thousands, except per share amounts and percentages)  

Operating revenues  

Operating income  

Income before income taxes  

Net income attributable to Noble Corporation 

Net income per diluted share   

Net cash provided by operating activities  

Capital expenditures  

Return on capital employed  

At year end: 

Total assets  

Property and equipment, net  

Total debt  

Total equity  

Book value per share  

In  2010,  Noble  continued  its 
strategy  to  add  rigs  with  the 
latest  technology,  equipment, 
and  capabilities.  With  nine  rigs 
currently  under  construction, 
including seven ultra-deepwater 
drillships,  which  are  slated  to 
join the recently delivered Noble 
Jim  Day  (right),  Noble  Danny 
Adkins,  Noble  Dave  Beard, 
and  Noble  Clyde  Boudreaux, 
Noble’s  ultra-deepwater  fleet  is 
becoming  one  of  the  finest  in 
the industry.

Board of Directors

Michael A. Cawley 2, 3, 4
President and Chief 
Executive Officer –  
The Samuel Roberts 
Noble Foundation, Inc. 
Director since 1985.

Contact the Board 
If you would like to contact the  
Noble Corporation Board of  
Directors, write to:

Noble Corporation Board of Directors
Dorfstrasse 19a
6340 Baar, Switzerland
or send an e-mail to:
Nobleboard@noblecorp.com

Lawrence J. Chazen 1
Chief Executive Officer – 
Lawrence J. Chazen, Inc. 
Director since 1994.

Julie H. Edwards 1, 3
Former Senior Vice President 
and Chief Financial Officer – 
Southern Union Company. 
Director since 2006.

For additional information about  
Noble Corporation, please refer to 
our proxy statement which is being 
mailed or made available with this 
Annual Report.

Gordon T. Hall 1
Chairman of the Board –
Exterran Holdings, Inc.
Director since 2009.

Marc E. Leland 2, 3
President – Marc E. 
Leland & Associates, Inc.  
Director since 1994.

Jack E. Little 2
Former President and 
Chief Executive Officer – 
Shell Oil Company. 
Director since 2000.

Jon A. Marshall 2
Former President and Chief 
Operating Officer –
Transocean Inc.
Director since 2009.

Mary P. Ricciardello 1
Former Senior Vice President 
and Chief Accounting Officer – 
Reliant Energy, Inc. 
Director since 2003.

David W. Williams 
Chairman, President and  
Chief Executive Officer
Noble Corporation
Director since 2008.

1 Audit Committee   2 Compensation Committee   3 Nominating and Corporate Governance Committee   4 Lead Director

Corporate Information

Transfer Agent and Registrar
Computershare Trust Company, N.A.
Canton, Massachusetts

Independent Auditors
PricewaterhouseCoopers AG
Zug, Switzerland

PricewaterhouseCoopers LLP
Houston, Texas

Shares Listed on  
New York Stock Exchange
Trading Symbol “NE”

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Form 10-K
A copy of Noble Corporation’s 2010 Annual 
Report on Form 10-K, as filed with the U.S. 
Securities and Exchange Commission, will be 
furnished without charge to any shareholder 
upon written request to: 
Julie J. Robertson - Executive Vice President 
and Corporate Secretary
Noble Corporation
Dorfstrasse 19a
6340 Baar, Switzerland

Annual Meeting
The Annual Meeting of Shareholders of Noble 
Corporation will be held on April 29, 2011, at 
3:00 p.m. local time at the Parkhotel Zug in 
Zug, Switzerland.

Corporate Officers
David W. Williams
Chairman, President and
Chief Executive Officer

Julie J. Robertson
Executive Vice President
and Corporate Secretary

Roger B. Hunt
Senior Vice President –
Marketing & Contracts 

Donald E. Jacobsen
Senior Vice President –  
Operations

Scott W. Marks
Senior Vice President – 
Engineering

Thomas L. Mitchell
Senior Vice President,  
Chief Financial Officer, 
Treasurer and Controller 

William E. Turcotte
Senior Vice President and
General Counsel

Investor Information
You can learn more about our 
operations and our Company  
by visiting our Web site at 
www.noblecorp.com. 
Shareholders, brokers, securities 
analysts or portfolio managers 
seeking information about Noble 
Corporation are welcome to contact: 
Lee M. Ahlstrom, Vice President – 
Investor Relations and Planning, 
Noble Drilling Services Inc.,  
by phone at: 281-276-6100 or by 
e-mail at: lahlstrom@noblecorp.com.

Forward Looking Statements
Any statements included in this 2010 
Annual Report that are not historical 
facts, including without limitation 
regarding future market trends and 
results of operations are forward-
looking statements within the 
meaning of applicable securities law.

 
 
 
  
 
   
  
  
  
  
  
  
 
 
 
 
 
 
 
To Our Shareholders

In  April  1921,  this  great  enterprise  was  created  from  very  modest 

means in the boom towns and oil fields of Oklahoma. Over the last 
90  years  it  has  led  us  from  onshore  drilling  sites  throughout  the 
United States to virtually every offshore drilling basin on the planet. 
Across  those  nine  decades  since  our  founder,  Lloyd  Noble,  conceived 
this fantastic venture, there have been recessions, depressions, economic 
booms and dramatic shifts in technology and processes. Some spurred 
the industry on and others erased entire companies from the landscape. 
And here we are.  

Thousands  of 

employees,  untold 
numbers  of  shareholders,  and  countless 
wells  drilled  by  many  rigs  later,  we 
stand tall and thrive in exactly the same 
business  we  pursued  in  our  infancy—
contract drilling. Reaching this milestone 
is  no  small  feat  and  has  required  much 
from the men and women who are the true 
strength  of  this  organization.  And  they 
aren’t done yet—not by a long shot. In fact, 
I believe Noble's best years are ahead of us 
as we continue to build momentum in the 
key areas  that have made  us  an  industry 
leader: safety, operational excellence, and 
sustainable growth.

suffered 

While  2010  was  a  year  marked 
by  unpredictable  and  unprecedented 
challenges, I’m proud to say that our team 
met  those  challenges  with  resilience, 
determination  and  professionalism.  Our 
from 
financial  performance 
the  mandated  suspension  of  drilling 
activity in the U.S. Gulf of Mexico, which 
dramatically  reduced  our  earnings  for 
the last nine months of the year, but our 
execution of other continuing operations, 
our  acquisition  of  Frontier,  and  creating 
our  landmark  relationship  with  Shell 
turned  what  could  have  been  a  disaster 
into  a  platform  from  which  we  will 
catapult this Company into the future.

$

4.0

3.5

3.0

2.5

2.0

1.5

1.0

$

7.50

6.25

5.00

3.75

2.50

1.25

0.00

2006

2007

2008

2009

2010

Revenues (Billions)

2006

2007

2008

2009

2010

Earnings per Share (Diluted)

As we entered 2010, nearly 30 percent 
of  our  contract  backlog  was  in  the  U.S. 
Gulf of Mexico. As the events surrounding 
the Macondo tragedy unfolded, we moved 
quickly  to  reach  agreements  with  our 
customers to place rigs on “standby" rates. 
Unfortunately,  some  customers  decided 
to cancel their contracts with us, idling a 
number of units. Despite our best efforts to 
find work outside the U.S. Gulf, there was 
simply no way to make up for the shortfall 
that  was  created  by  the  industry-wide 
suspension  of  U.S.  offshore  drilling. 
With  seven  floaters  in  the  U.S.  Gulf  at 
mid-summer, 
impacted 
Noble more than many of our competitors. 
With  no  clear  end  to  the  moratorium  in 
sight,  we  focused  on  controlling  costs, 
ensuring  our  rigs  would  be  prepared 
to  meet  the  newly  evolving  regulatory 
standards, and redeploying crew members 
from  the  U.S.  Gulf  to  other  divisions 
to  help  preserve  our  top-flight  teams.  

the  shutdown 

As  part  of  our  efforts,  Noble  participated 
fully  in  the  joint  industry  task  force 
which  helped  craft  suggested  workplace 
and equipment enhancements.

Despite 

the  ongoing 

turmoil  and 
regulatory uncertainty in the U.S. Gulf, it 
is my belief that when the history of Noble 
is written, 2010 will be remembered more 
as  a  year  of  sustainability  and  transition 
than for the suspension of activities in the 
U.S. Gulf. Chief among our achievements 
was  our  continued  exemplary  safety 
results.  Our  team  members  delivered  the 
second  best  performance  in  our  90-year 
history,  coming  in  right  behind  2009’s 
record-breaking  results.  The  majority  of 
our  operating  divisions  extended  their 
outstanding  results  from  the  previous 
year.  That  said,  more  work  lies  ahead  of 
us in 2011 as we continue to create a truly 
injury-free culture. 

Furthermore,  in  the  midst  of  the 
ongoing uncertainty that arose out of the 
ashes of tragedy, we executed on the $2.16 
billion  Frontier  transaction  and  started  a 
new chapter in customer relations with our 
unparalleled agreements with Shell. Taken 
together,  these  two  events  combined  to 
dramatically enhance our competitiveness 
in  terms  of  our  fleet,  our  fire  power  and 
our  future  earning  potential.  In  total, 
these  transactions  doubled  our  contract 
backlog  to  almost  $14  billion  as  of  the 
acquisition  closing  date  and  added  close 
to 50 years of contract work on nine rigs 
plus  an  FPSO.  Perhaps  more  importantly, 
we  have  entered  a  new  chapter  in  our 
long-standing  relationship  with  Shell,  a 
premium  operator,  who  now  comprises 
more  than  half  of  our  backlog  just  as 
we  will  be  the  provider  of  the  bulk  of 
their  deepwater  drilling  capability.  Both 
organizations  are  aligned  around  each 
other’s  mutual  success  and  it  is  my  view 
that this relationship will create value for 
our shareholders for many years to come.  

is 

Headed  into  2011,  the  composition 
remarkably 
of  our  drilling  fleet 
different  than  it  was  at  this  point  last 
year.  We  continued  our  growth  within 
the  deepwater  sector  with  the  Frontier 
transaction  as  well  as  the  January  and 
March  2011  announcements  of  three 
ultra-deepwater  newbuild  drillships.  By 
the  conclusion  of  the  current  building 
program,  Noble  will  have  27  floaters,  
of  which,  15  are  DP  and  13  are  ultra-
deepwater,  capable  of  operating  in  water 
depths  greater  than  7,500  feet.  Moreover,  
in 2014, as currently configured, over 40 
percent  of  our  floating  fleet  will  be  less 
than  10  years  old  and  will  provide  our 
customers with some of the most modern 
and  capable  units  in  the  industry  while 
delivering good returns for Noble.

jackup  fleet  by 

Likewise,  we  have  begun  to  reshape 
focusing  on 
our 
technology.  In  addition  to  the  three  high 
specification  units  we  built  in  recent 
years,  we  announced  plans  to  construct 

1500
$

1250

1000

750

500

250

0

2006

2007

2008

2009

2010

Capital Investment (Millions)

Deepwater

Other

%

30

25

20

15

10

5

0

2006

2007

2008

2009

2010

Percent Debt to Total Capital

two  heavy-duty,  harsh  environment 
jackups  with  capabilities  that  exceed  
most  rigs  in  the  industry  today.  Units 
such as these will help to solidify Noble’s 
mark  as  a  continuing  leader  in  the  
jackup drilling arena.

Noble didn’t reach its 90th anniversary 
by resting on its laurels and we recognize 
as we plan for the future that complacency 
has no place  in  a successful venture.  We 
continue to press ahead and a significant 
new  initiative,  known  internally  as  “One 
Noble,” was launched in September. 

achieving 

“One  Noble"  is  a  broad  framework 
further 
continuous 
for 
improvement  for 
the  benefit  of  our 
customers,  our  employees  and  our 
shareholders.  The  central  drivers  of  this 
initiative are the capturing and sharing of 
our  core  strengths—across  departments, 
across  the  Company  and  across  the 
world.  Anchored  in  our  commitment  to 
operational  integrity,  we’re  defining  a 
systematic  approach  to  further  improve 
operating  efficiency,  personal  safety  and 
process  safety  in  order  to  sustain  and 
enhance  our  position  as  the  industry 
leader in these areas. This is an endeavor 
that is a fundamental imperative at Noble 
and has been for many years.   

Another  effort  of  “One  Noble"  is 
a  company-wide  process 
to  analyze, 
evaluate  and  formulate  a  plan  to  ensure 

resources 

we  not  only  have  the 
to 
human 
meet  the  challenges  of 
the  future,  but  the  hard 
assets,  as  well.  This  plan 
is  building  on  the  seven 
newbuilds  we  have  delivered  in  the  last 
three  years,  the  nine  rigs  we  currently 
have  under  construction,  our  ongoing 
optimization  of  units  currently  in  the 
fleet  and  an  evaluation  of  some  that  
we  may  need  to  divest  of  in  the  future. 
Our goal is to operate the best fleet with 
the  best  people  and  create  real  value  for 
our shareholders.

I 

When 

the  many 
consider 
positives  that  occurred  in  2010,  despite 
unprecedented challenges, I have no doubt 
Noble  will  be  an  even  more  successful 
company  in  the  years  ahead.  I  am  once 
again  grateful  for  the  unparalleled  work, 
dedication and sacrifice of our employees 
worldwide.  With  their  effort  and  your 
support,  we  look  forward  to  our  future 
with great confidence. 

David W. Williams 
Chairman, President and 
Chief Executive Officer 

UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 
FORM 10-K 
(cid:1)  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE 

 (cid:2) 

ACT OF 1934 
For the fiscal year ended December 31, 2010 
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES 
EXCHANGE ACT OF 1934 
For the transition period from                       to  

Commission file number: 000-53604 

NOBLE CORPORATION 

(Exact name of registrant as specified in its charter) 

Switzerland 
(State or other jurisdiction of incorporation or organization) 

98-0619597 
(I.R.S. employer identification number) 

Dorfstrasse 19A, Baar, Switzerland 6430 
(Address of principal executive offices) (Zip Code) 
Registrant’s Telephone Number, Including Area Code: 41 (41) 761-65-55 
Securities registered pursuant to Section 12(b) of the Act: 

Title of each class 
Shares, Par Value 3.80 CHF per Share 

Name of each exchange on which registered 
New York Stock Exchange 

Commission file number: 001-31306 

NOBLE CORPORATION 

(Exact name of registrant as specified in its charter) 

Cayman Islands 
(State or other jurisdiction of incorporation or organization) 

98-0366361 
(I.R.S. employer identification number) 

Suite 3D Landmark Square, 64 Earth Close, P.O. Box 31327 
George Town, Grand Cayman, Cayman Islands KY1-1206 
(Address of principal executive offices) (Zip Code) 
Registrant’s Telephone Number, Including Area Code: (345) 938-0293 
Securities registered pursuant to Sections 12(b) and 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 (cid:1) No (cid:2) 
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act. Yes (cid:2) No (cid:1) 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act 
of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject 
to such filing requirements for the past 90 days. Yes (cid:1) No (cid:2) 
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every  Interactive Data File 
required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the proceeding 12 months. Yes (cid:1) No (cid:2) 
Indicate  by  check  mark  if  disclosure  of  delinquent  filers  pursuant  to  Item  405  of  Regulation  S-K  is  not  contained  herein,  and  will  not  be 
contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 
10-K or any amendment to this Form 10-K. (cid:2) 
Indicate  by  check  mark  whether  the  registrant  is  a  large  accelerated  filer,  an  accelerated  filer,  a  non-accelerated  filer,  or  a  smaller  reporting 
company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. 
Smaller reporting company (cid:2) 
Smaller reporting company (cid:2) 

Accelerated filer (cid:2) 
Accelerated filer (cid:2) 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes (cid:2) No (cid:1) 
As  of  June  30,  2010,  the  aggregate  market  value  of  the  registered  shares  of  Noble  Corporation  (Switzerland)  held  by  non-affiliates  of  the 
registrant was $7.8 billion based on the closing sale price as reported on the New York Stock Exchange. 
Number of shares outstanding and trading at February 14, 2011: Noble Corporation (Switzerland) — 252,336,929. 
Number of shares outstanding and trading at February 14, 2011: Noble Corporation (Cayman Islands) — 261,245,693 

Large accelerated filer (cid:1) 
Large accelerated filer (cid:2) 

Non-accelerated filer (cid:2) 
Non-accelerated filer (cid:1) 

Noble-Cayman: 

Noble-Swiss: 

DOCUMENTS INCORPORATED BY REFERENCE 
The  proxy  statement  for  the  2011  annual  general  meeting  of  the  shareholders  of  Noble  Corporation  (Switzerland)  will  be  incorporated  by 
reference into Part III of this Form 10-K. 
This Form 10-K is a combined annual report being filed separately by two registrants: Noble Corporation, a Swiss corporation (“Noble-
Swiss”), and its wholly-owned subsidiary Noble Corporation, a Cayman Islands company (“Noble-Cayman”). Noble-Cayman meets the 
conditions set forth in General Instructions I (1) of Form 10-K and is therefore filing this Form 10-K with the reduced disclosure format 
contemplated by paragraphs (a) and (c) of General Instruction I(2) of Form 10-K. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PART I 

TABLE OF CONTENTS 

  PAGE   

Item 1. Business............................................................................................................................................... 

Item 1A. Risk Factors ...................................................................................................................................... 

Item 1B. Unresolved Staff Comments............................................................................................................. 

Item 2. Properties............................................................................................................................................. 

Item 3. Legal Proceedings ............................................................................................................................... 

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 ............................................................................................................................. 

PART III 

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 Accounting Fees and Services ........................................................................................... 

PART IV 

Item 15. Exhibits, Financial Statement Schedules........................................................................................... 

SIGNATURES ............................................................................................................................................... 

2 

9 

18 

18 

22 

22 

27 

27 

49 

52 

110 

110 

110 

111 

112 

112 

112 

113 

113 

114 

This combined Annual Report on Form 10-K is separately filed by Noble Corporation, a Swiss corporation 
(“Noble-Swiss”), and Noble Corporation, a Cayman Islands company (“Noble-Cayman”). Information in this filing 
relating  to  Noble-Cayman  is  filed  by  Noble-Swiss  and  separately  by  Noble-Cayman  on  its  own  behalf.  Noble-
Cayman  makes  no  representation  as  to  information  relating  to  Noble-Swiss  (except  as  it  may  relate  to  Noble-
Cayman) or any other affiliate or subsidiary of Noble-Swiss. Since Noble-Cayman meets the conditions specified in 
General  Instructions  I(1)  to  Form  10-K,  it  is  permitted  to  use  the  reduced  disclosure  format  for  wholly-owned 
subsidiaries of reporting companies set forth in General Instruction I(2) to Form 10-K. 

1 

 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
This  report  should  be  read  in  its  entirety  as  it  pertains  to  each  Registrant.  Except  where  indicated,  the 
Consolidated  Financial  Statements  and  the  Notes  to  the  Consolidated  Financial  Statements  are  combined. 
References in this Annual Report on Form 10-K to “Noble,” the “Company,” “we,” “us,” “our” and words of similar 
meaning refer collectively to Noble-Swiss and its consolidated subsidiaries, including Noble-Cayman, after March 
26, 2009 and to Noble-Cayman and its consolidated subsidiaries for periods through March 26, 2009. Noble-Swiss 
became  a  successor  registrant  to  Noble-Cayman  under  the  Securities  Exchange  Act  of  1934,  as  amended  (the 
“Exchange Act”) pursuant to Rule 12g-3 of the Exchange Act as a result of consummation of the 2009 migration 
transactions described in Item 1 of Part I of this Annual Report on Form 10-K. 

Part I 

Item 1. Business.  

General 

Noble Corporation, a Swiss corporation, is a leading offshore drilling contractor for the oil and gas industry. 
We perform contract drilling services with our fleet of 73 mobile offshore drilling units and one floating production 
storage and offloading unit (“FPSO”) located worldwide. Our fleet consists of 14 semisubmersibles, 12 drillships, 
45  jackups  and  two  submersibles.  Our  fleet  includes  eight  units  under  construction:  two  dynamically  positioned, 
ultra-deepwater, harsh environment Globetrotter-class drillships, two dynamically positioned, ultra-deepwater, harsh 
environment  Bully-class  drillships,  two  heavy-duty,  harsh  environment  jackup  rigs  announced  in  December  2010 
and two ultra-deepwater drillships announced in January 2011. For additional information on the specifications of 
the fleet, see “Item 2. Properties. — Drilling Fleet.” As of January 19, 2011, approximately 81 percent of our fleet 
was  located  outside  the  United  States  in  the  following  areas:  Middle  East,  India,  Mexico,  the  Mediterranean,  the 
North  Sea,  Brazil,  West  Africa  and  Asian  Pacific.  Noble  and  its  predecessors  have  been  engaged  in  the  contract 
drilling of oil and gas wells since 1921. 

Acquisition of Frontier Holdings Limited 

On July 28, 2010, Noble-Swiss and Noble AM Merger Co., a Cayman Islands company and indirect wholly-
owned subsidiary of Noble-Swiss (“Merger Sub”), completed the acquisition of FDR Holdings Limited, a Cayman 
Islands company (“Frontier”). Under the terms of the  Agreement and Plan of Merger  with Frontier and certain of 
Frontier’s shareholders, Merger Sub merged with and into Frontier, with Frontier surviving as an indirect wholly-
owned subsidiary of Noble-Swiss and a wholly-owned subsidiary of Noble-Cayman. The Frontier acquisition was 
for  a  purchase  price  of  approximately  $1.7  billion  in  cash  plus  liabilities  assumed  and  strategically  expanded  and 
enhanced our global fleet by adding three dynamically positioned drillships (including two Bully-class joint venture-
owned  drillships  under  construction),  two  conventionally  moored  drillships,  including  one  that  is  Arctic-class,  a 
conventionally  moored  deepwater  semisubmersible  and  one  dynamically  positioned  FPSO  to  our  fleet.  Frontier’s 
results of operations were included in our results beginning July 28, 2010. We funded the cash consideration paid at 
closing of approximately $1.7 billion using proceeds from our July 2010 offering of senior notes and existing cash 
on hand. 

Consummation of 2009 Migration 

On March 26, 2009, we completed a series of transactions that effectively changed the place of incorporation 
of our parent holding company from the Cayman Islands to Switzerland. As a result of these transactions, Noble-
Cayman,  the  previous  publicly  traded  Cayman  Islands  parent  holding  company,  became  a  direct,  wholly-owned 
subsidiary of Noble-Swiss, the current parent company. Noble-Swiss’ principal asset is 100 percent of the shares of 
Noble-Cayman. The consolidated financial statements of Noble-Swiss include the accounts of Noble-Cayman, and 
Noble-Swiss  conducts  substantially  all  of  its  business  through  Noble-Cayman  and  its  subsidiaries.  In  connection 
with  this  transaction,  we  relocated  our  principal  executive  offices,  executive  officers  and  selected  personnel  to 
Geneva, Switzerland. 

2 

 
 
 
 
 
 
 
 
 
 
 
Business Strategy 

Noble’s  goal  is  to  be  the  industry’s  preferred  drilling  contractor  based  upon  the  following  overarching 

principles: 

•  operate  in  a  manner  that  provides  a  safe  working  environment  for  our  employees  while  protecting  the 

environment and our assets; 

•  provide an attractive investment vehicle for our shareholders; and  

•  deliver  exceptional  customer  service  via  a  large,  diverse  and  technically  advanced  fleet  operated  by 

competent personnel. 

Our business strategy continues to be the active expansion of our worldwide offshore drilling and deepwater 
capabilities  whereby  we  move  our  fleet  towards  the  latest  technology  while  maintaining  the  highest  level  of 
operational integrity with respect to health, safety, and the environment. Historically, we have accomplished this via 
rig  and  hull  upgrades  and  modifications,  acquisitions,  and  divestitures  of  lower  specification  units.  While 
divestitures  of  non-competitive  assets  continue  to  be  a  part  of  the  strategy,  many  of  our  existing  units  have  been 
upgraded to their technical limits and our ability to complete acquisitions has been limited by market conditions. As 
a result, in recent years, we have actively expanded our fleet through the construction of new rigs, including jackups 
and drillships. In all of our investment decisions we seek to achieve a strong return on capital for the benefit of our 
shareholders. During 2010, we continued our strategy as indicated by the following activities: 

•  we  completed  the  acquisition  of  Frontier,  which  added  a  total  of  five  drillships  (including  two  Bully-class 
joint venture-owned drillships under construction and to be completed in 2011), one semisubmersible and an 
FPSO to the fleet; 

•  we  completed  construction  on  the  Noble  Dave  Beard,  a  dynamically  positioned  ultra-deepwater 
semisubmersible that left the shipyard during the first quarter of 2010 and began operating under a long-term 
contract in Brazil; 

•  we completed construction on the Noble Jim Day, a dynamically positioned ultra-deepwater semisubmersible 

that left the shipyard during the third quarter of 2010; 

•  we continued construction on one dynamically positioned, ultra-deepwater, harsh environment Globetrotter-

class drillship, which is scheduled to be delivered to our customer in the fourth quarter of 2011; 

•  we began construction on one dynamically positioned, ultra-deepwater, harsh environment Globetrotter-class 

drillship, which is scheduled to be delivered to our customer in the fourth quarter of 2013; and 

•  we announced we would construct two high-specification heavy duty, harsh environment jackup rigs, both of 

which are scheduled to be delivered during 2013. 

In  addition  to  the  projects  listed  above,  in  January  2011,  we  signed  a  contract  for  the  construction  of  two 
additional newbuild drillships at Hyundai Heavy Industry (“HHI”), increasing the number of floating drilling units 
in our fleet to 26. The delivered cost of the new ultra-deepwater drillships, to be named at a later date, is expected to 
be $605 million each, including the turnkey construction contract, Noble-furnished equipment, project management 
and spares, but excluding capitalized interest. The expected deliveries from the shipyard are the second and fourth 
quarters of 2013, respectively, after which time the units would be mobilized to their potential drilling locations and 
undergo customer acceptance testing. We have a letter of intent for one of these units for a five and one-half year 
contract  with  a  subsidiary  of  Royal  Dutch  Shell  plc  (“Shell”)  at  a  dayrate  of  $410,000,  plus  a  15  percent 
performance bonus opportunity. We have also negotiated options for two additional jackups and two additional HHI 
drillships. 

Excluding the Frontier acquisition, capital expenditures totaled $1.4 billion during 2010. 

3 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
As of January 31, 2011, shipyards worldwide reportedly had received commitments to construct 55 jackups 
and 61 deepwater floaters, including our units. These jackups and floaters are expected to be delivered between 2011 
and 2014. Of these totals, approximately 21 jackups and 12 floating drilling units have been announced since fourth 
quarter 2010, signifying that the industry has entered into another new building phase, and more announcements are 
expected.  These  totals  do  not  include  options  for  additional  units  that  many  companies  have  negotiated  with 
shipyards  and  therefore,  the  number  of  units  which  could  ultimately  come  to  market  could  increase  significantly. 
The majority of these jackups and floaters reportedly do not have a contractual commitment from a customer and are 
being  built  on  speculation  without  an  underlying  contract.  The  introduction  of  non-contracted  rigs  into  the 
marketplace will increase the supply of vessels which compete for drilling service contracts, which could negatively 
impact  the  dayrates  we  are  able  to  achieve.  Our  strategy  on  new  construction  has  generally  been  to  expand  our 
drilling  fleet  in  connection  with  a  long-term  drilling  contract  that  covers  a  substantial  portion  of  our  capital 
investment and provides an acceptable return on our capital employed. However, with the addition of a significant 
number of new, technologically advanced units to the global fleet as well as changes in customer requirements and 
preferences, we believe that in order to maintain the long-term competitiveness of our fleet as well as our significant 
contract  backlog,  it  has  become  both  necessary  and  desirable  for  us  to  engage  in  building  speculative  highly 
advanced jackups and floating units. Of the units we currently have under construction, one of the ultra-deepwater 
drillships and both heavy duty, harsh environment jackups are being built on speculation. We will attempt to secure 
contracts  for  these  units  prior  to  their  completion.  We  may  also  engage  in  additional  speculative  building  in  the 
future even in the absence of contracts for units already under construction. 

As part of our strategy, we intend to participate in the consolidation of the offshore drilling industry to the 
extent we believe we can create shareholder value. From time to time, we evaluate other individual rig transactions 
and business combinations with other parties, and we will continue to consider business opportunities that promote 
our growth strategy and optimize shareholder value. 

In previous years, the drilling industry has experienced significant increases in dayrates for drilling services 
in most market segments, a tightening market for drilling equipment, and a shortage of personnel. This environment 
drove  operating  costs  higher  and  magnified  the  importance  of  recruiting,  training  and  retaining  skilled  personnel. 
While the global financial turmoil and the governmental actions following the events of the Deepwater Horizon in 
April 2010 have created an environment of uncertainty and downward pressure on both dayrates and certain types of 
costs, we are not certain whether this downward pressure will continue in the future. 

In recognition of the importance of our offshore operations personnel in achieving a safety record that  has 
consistently outperformed the offshore drilling industry sector and to retain such personnel, we have implemented a 
number of key operations personnel retention programs. We believe these programs will complement our other short 
and long-term incentive programs to attract and retain the skilled personnel we need to maintain safe and efficient 
operations. 

Drilling Contracts 

We typically employ each drilling unit under an individual contract. Although the final terms of the contracts 
result from negotiations with our customers, many contracts are awarded based upon a competitive bidding process. 
Our drilling contracts generally contain the following terms: 

•  contract  duration  extending  over  a  specific  period  of  time  or  a  period  necessary  to  drill  a  defined  number 

wells; 

•  provisions permitting early termination of the contract by the customer (i) if the unit is lost or destroyed or 

(ii) if operations are suspended for a specified period of time due to breakdown of equipment; 

•  provisions allowing the impacted party to terminate the contract if specified “force majeure” events beyond 

the contracting parties’ control occur for a defined period of time; 

•  payment  of  compensation  to  us  (generally  in  U.S.  Dollars  although  some  customers,  typically  national  oil 
companies, require a part of the compensation to be paid in local currency) on a “daywork” basis, so that we 
receive a fixed amount for each day (“dayrate”) that the drilling unit is operating under contract (a lower rate 
or no compensation is payable during periods of equipment breakdown and repair or adverse weather or in 
the event operations are interrupted by other conditions, some of which may be beyond our control); 

4 

 
 
 
 
 
 
 
 
 
 
 
•  payment by us of the operating expenses of the drilling unit, including labor costs and the cost of incidental 

supplies; and 

•  provisions that allow us to recover certain cost increases from certain of our customers. 

The terms of some of our drilling contracts permit early termination of the contract by the customer, without 
cause, generally exercisable upon advance notice to us and in some cases upon the making of an early termination 
payment  to  us.  Our  drilling  contracts  with  Petróleos  Mexicanos  (“Pemex”)  in  Mexico,  for  example,  allow  early 
cancellation on 30 days or less notice to us without Pemex making an early termination payment. 

Generally,  our  contracts  allow  us  to  recover  our  mobilization  and  demobilization  costs  associated  with 
moving a drilling unit from one regional location to another. When market conditions require us to bear these costs, 
our operating margins are reduced accordingly. We cannot predict our ability to recover these costs in the future. For 
shorter moves such as “field moves,” our customers have generally agreed to bear the costs of moving the unit by 
paying us a reduced dayrate or “move rate” while the unit is being moved. 

During times of depressed  market conditions, our customers  may  seek to avoid or reduce their contractual 
obligations  to  us  under  term  drilling  contracts  or  letter  agreements  or  letters  of  intent  for  drilling  contracts.  A 
customer may no longer need a rig due to a reduction in its exploration, development or production program, or it 
may seek to obtain a comparable rig at a lower dayrate. 

For a discussion of our backlog of commitments  for contract drilling services, please read “Management’s 

Discussion and Analysis of Financial Condition and Results of Operations — Contract Drilling Services Backlog.” 

Offshore Drilling Operations 

Contract Drilling Services 

We conduct offshore contract drilling operations, which accounted for approximately 99 percent, 99 percent 
and  98  percent  of  operating  revenues  for  the  years  ended  December  31,  2010,  2009  and  2008,  respectively.  We 
conduct our contract drilling operations principally in the Middle East, India, the U.S. Gulf of Mexico, Mexico, the 
Mediterranean,  the  North  Sea,  Brazil,  West  Africa  and  Asian  Pacific.  Revenues  from  Pemex  accounted  for 
approximately 20 percent, 23 percent and 20 percent of our total operating revenues for the years ended December 
31,  2010,  2009  and  2008,  respectively.  Revenues  from  Petróleo  Brasileiro  S.A.  (“Petrobras”)  accounted  for  19 
percent  of  total  operating  revenue  in  2010.  Petrobras  did  not  account  for  more  than  10  percent  of  total  operating 
revenue in 2009 or 2008. Revenues from Shell and its affiliates accounted for 12 percent of total operating revenues 
during both 2010 and 2009. Shell did not account for more than 10 percent of total operating revenues in 2008. No 
other single customer accounted for more than 10 percent of our total operating revenues in 2010, 2009 or 2008. 

Labor Contracts 

We  perform  services  for  drilling  and  workover  activities  covering  two  rigs  under  a  labor  contract  (the 
“Hibernia Contract”) off the east coast of Canada. We do not own or lease these rigs. Under our labor contracts, we 
provide the personnel necessary to manage and perform the drilling operations from a drilling platform owned by 
the operator. The Hibernia Contract extends through January 2013. 

Competition 

The  offshore  contract  drilling  industry  is  a  highly  competitive  and  cyclical  business  characterized  by  high 

capital and maintenance costs. Some of our competitors may have access to greater financial resources than we do. 

5 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
In  the  provision  of  contract  drilling  services,  competition  involves  numerous  factors,  including  price,  rig 
availability and suitability, experience of the workforce, efficiency, safety performance record, condition and age of 
equipment,  operating  integrity,  reputation,  industry  standing  and  client  relations.  We  believe  that  we  compete 
favorably  with  respect  to  all  of  these  factors.  We  follow  a  policy  of  keeping  our  equipment  well  maintained  and 
technologically  competitive.  However,  our  equipment  could  be  made  obsolete  by  the  development  of  new 
techniques and equipment, regulations or customer preferences. 

We compete on a worldwide basis, but competition may vary by region at any particular time. Demand for 
offshore  drilling  equipment  also  depends  on  the  exploration  and  development  programs  of  oil  and  gas  producers, 
which in turn are influenced by the financial condition of such producers, by general economic conditions and prices 
of oil and gas, and by political considerations and policies. 

In  addition,  industry-wide  shortages  of  supplies,  services,  skilled  personnel  and  equipment  necessary  to 
conduct our business can occur. We cannot assure that any such shortages experienced in the past would not happen 
again in the future. 

Governmental Regulations and Environmental Matters 

Political developments and numerous governmental regulations, which may relate directly or indirectly to the 
contract drilling industry, affect many aspects of our operations. Non-U.S. contract drilling operations are subject to 
various  laws  and  regulations  in  countries  in  which  we  operate,  including  laws  and  regulations  relating  to  the 
equipping  and  operation  of  drilling  units,  the  reduction  of  greenhouse  gas  emissions  to  address  climate  change, 
currency conversions and repatriation, oil and gas exploration and development, taxation of offshore earnings and 
earnings  of  expatriate  personnel  and  use  of  local  employees  and  suppliers  by  foreign  contractors.  A  number  of 
countries  actively  regulate  and  control  the  ownership  of  concessions  and  companies  holding  concessions,  the 
exportation of oil and gas and other aspects of the oil and gas industries in their countries. In addition, government 
action,  including  initiatives  by  the  Organization  of  Petroleum  Exporting  Countries  (“OPEC”),  may  continue  to 
contribute to oil price volatility. In some areas of the  world, this governmental activity  has adversely affected the 
amount of exploration and development work done by oil and gas companies and their need for drilling services and 
may continue to do so. 

The regulations applicable to our operations include provisions that regulate the discharge of materials into 
the environment or require remediation of contamination under certain circumstances. Many of the other countries 
in  whose  waters  we  operate  from  time  to  time  also  regulate  the  discharge  of  oil  and  other  contaminants  in 
connection with drilling operations. Failure to comply with these laws and regulations or to obtain or comply with 
permits  may  result  in  the  assessment  of  administrative,  civil  and  criminal  penalties,  imposition  of  remedial 
requirements and the imposition of injunctions to force future compliance. We have made and will continue to make 
expenditures to comply with environmental requirements. To date we have not expended material amounts in order 
to comply, and  we do not believe that our compliance  with such requirements  will  have  a  material adverse effect 
upon  our  results  of  operations  or  competitive  position  or  materially  increase  our  capital  expenditures.  Although 
these requirements impact the energy and energy services industries, generally they do not appear to affect us in any 
material  respect  that  is  different,  or  to  any  materially  greater  or  lesser  extent,  than  other  companies  in  the  energy 
services industry. However, our business and prospects could be adversely affected to the extent laws are enacted or 
other  governmental  action  is  taken  that  prohibits  or  restricts  our  customers’  exploration  and  production  activities, 
results in reduced demand for our services or imposes environmental protection requirements that result in increased 
costs to us, our customers or the oil and natural gas industry in general. 

On April 22, 2010, the Nigerian Oil and Gas Industry Content Development Bill was signed into law. The 
law is designed to create Nigerian content in operations and transactions within the Nigerian oil and gas industry. 
The law sets forth certain requirements for the utilization of Nigerian human resources and goods and services in oil 
and gas projects and creates a Nigerian Content Development and Monitoring Board to implement and monitor the 
law and develop regulations pursuant to the law. The law also establishes a Nigerian Content Development Fund to 
fund  the  implementation  of  the  law,  and  requires  that  one  percent  of  the  value  of  every  contract  awarded  in  the 
Nigerian oil and gas industry be paid into the fund. We cannot predict what impact the new law may have on our 
existing or future operations in Nigeria, but the effect on our operations there could be significant. 

6 

 
 
 
 
 
 
 
 
 
The following is a summary of some of the existing laws and regulations to which our business operations in 
the U.S. Gulf of Mexico are subject. However, there are also laws that apply to similar issues in most of the other 
jurisdictions in which we operate. 

Spills  and  Releases.  The  Comprehensive  Environmental  Response,  Compensation,  and  Liability  Act 
(“CERCLA”), and analogous state laws and regulations, impose joint and several liabilities, without regard to fault 
or  the  legality  of  the  original  act,  on  certain  classes  of  persons  that  contributed  to  the  release  of  a  “hazardous 
substance”  into  the  environment.  These  persons  include  the  “owner”  and  “operator”  of  the  site  where  the  release 
occurred,  past  owners  and  operators  of  the  site,  and  companies  that  disposed  or  arranged  for  the  disposal  of  the 
hazardous substances found at the site. Responsible parties under CERCLA may be liable for the costs of cleaning 
up hazardous substances that have been released into the environment and for damages to natural resources. In the 
course  of  our  ordinary  operations,  we  may  generate  waste  that  may  fall  within  CERCLA’s  definition  of  a 
“hazardous  substance.”  However,  we  have  not  to  date  received  notification  that  we  are  or  may  be  potentially 
responsible for cleanup costs under CERCLA. 

In addition, the U.S. government has indicated that before any new deepwater drilling resumes, (i) operators 
must  demonstrate  that  containment  resources  are  available  promptly  in  the  event  of  a  deepwater  blowout,  (ii)  the 
chief  executive  officer  of  each  operator  seeking  to  perform  deepwater  drilling  must  certify  that  the  operator  has 
complied  with  all  applicable  regulations  and  (iii)  the  Bureau  of  Ocean  Energy  Management,  Regulation  and 
Enforcement  will  conduct  inspections  of  each  deepwater  drilling  operation  for  compliance  with  the  applicable 
regulations. In addition, regulations regarding blowout preventers are still being developed, but we are proceeding in 
a manner to help ensure we will be in compliance with any final regulations. 

The  Oil  Pollution  Act.  The  U.S.  Oil  Pollution  Act  of  1990  (“OPA”)  and  regulations  thereunder  impose 
certain operational requirements on offshore rigs operating in the U.S. Gulf of Mexico and govern liability for leaks, 
spills  and  blowouts  involving  pollutants.  The  OPA  imposes  strict,  joint  and  several  liabilities  on  “responsible 
parties”  for  damages,  including  natural  resource  damages,  resulting  from  oil  spills  into  or  upon  navigable  waters, 
adjoining  shorelines  or  in  the  exclusive  economic  zone  of  the  United  States.  A  “responsible  party”  includes  the 
owner  or  operator  of  an  onshore  facility  and  the  lessee  or  permittee  of  the  area  in  which  an  offshore  facility  is 
located.  The  OPA  establishes  a  liability  limit  for  onshore  facilities  of  $350  million,  while  the  liability  limit  for 
offshore facilities is equal to all removal costs plus up to $75 million in other damages. These liability limits may 
not apply if a spill is caused by a party’s gross negligence or willful misconduct, if the spill resulted from violation 
of a federal safety, construction or operating regulation, or if a party fails to report a spill or to cooperate fully in a 
clean-up. 

Regulations under the OPA require owners and operators of rigs in United States waters to maintain certain 
levels  of  financial  responsibility.  The  failure  to  comply  with  the  OPA’s  requirements  may  subject  a  responsible 
party to civil, criminal, or administrative enforcement actions. We are not aware of any action or event that would 
subject us to liability under the OPA, and we believe that compliance with the OPA’s financial assurance and other 
operating requirements will not have a material impact on our operations or financial condition. 

Waste  Handling.  The  U.S.  Resource  Conservation  and  Recovery  Act  (“RCRA”),  and  analogous  state  and 
local  laws  and  regulations  govern  the  management  of  wastes,  including  the  treatment,  storage  and  disposal  of 
hazardous  wastes.  RCRA  imposes  stringent  operating  requirements,  and  liability  for  failure  to  meet  such 
requirements,  on  a  person  who  is  either  a  “generator”  or  “transporter”  of  hazardous  waste  or  an  “owner”  or 
“operator”  of  a  hazardous  waste  treatment,  storage  or  disposal  facility.  RCRA  specifically  excludes  from  the 
definition  of  hazardous  waste  drilling  fluids,  produced  waters,  and  other  wastes  associated  with  the  exploration, 
development,  or  production  of  crude  oil  and  natural  gas.  A  similar  exemption  is  contained  in  many  of  the  state 
counterparts  to  RCRA.  As  a  result,  we  are  not  required  to  comply  with  a  substantial  portion  of  RCRA’s 
requirements because our operations generate minimal quantities of hazardous wastes. However, these wastes may 
be  regulated  by  the  United  States  Environmental  Protection  Agency  (“EPA”)  or  state  agencies  as  solid  waste.  In 
addition, ordinary industrial wastes, such as paint wastes, waste solvents, laboratory wastes, and waste compressor 
oils,  may  be  regulated  under  RCRA  as  hazardous  waste.  We  do  not  believe  the  current  costs  of  managing  our 
wastes, as they are presently classified, to be significant. However, any repeal or modification of the oil and natural 
gas exploration and production exemption, or modifications of similar exemptions in analogous state statutes, would 
increase the volume of hazardous waste we are required to manage and dispose of and would cause us, as well as 
our competitors, to incur increased operating expenses with respect to our U.S. operations. 

7 

 
 
 
 
 
 
 
 
Water Discharges. The U.S.  Federal Water Pollution  Control Act of 1972, as amended, also known as the 
“Clean Water  Act,” and analogous state laws and regulations impose restrictions and controls on the discharge of 
pollutants  into  federal  and  state  waters.  These  laws  also  regulate  the  discharge  of  storm  water  in  process  areas. 
Pursuant to these laws and regulations, we are required to obtain and maintain approvals or permits for the discharge 
of wastewater and storm water. We do not anticipate that compliance with these laws will cause a material impact 
on our operations or financial condition. 

Air Emissions. The U.S. Federal Clean Air Act and associated state laws and regulations restrict the emission 
of  air  pollutants  from  many  sources,  including  oil  and  natural  gas  operations.  New  facilities  may  be  required  to 
obtain permits before operations can commence, and existing facilities may be required to obtain additional permits 
and  incur  capital  costs  in  order  to  remain  in  compliance.  Federal  and  state  regulatory  agencies  can  impose 
administrative, civil and criminal penalties for non-compliance with air permits or other requirements of the Clean 
Air  Act  and  associated  state  laws  and  regulations.  Except  as  outlined  below  regarding  climate  change  issues,  we 
believe that compliance  with  the Clean  Air  Act and analogous state laws and regulations  will not have a  material 
impact on our operations or financial condition. 

Climate  Change.  There  is  increasing  attention  in  the  United  States  and  worldwide  concerning  the  issue  of 
climate  change  and  the  effect  of  greenhouse  gas  (“GHG”)  emissions.  On  September  22,  2009,  the  EPA  issued  a 
“Mandatory Reporting of Greenhouse Gases” final rule (“Reporting Rule”). The Reporting Rule establishes a new 
comprehensive scheme requiring operators of stationary sources emitting more than established annual thresholds of 
carbon  dioxide-equivalent  GHG’s  to  inventory  and  report  their  GHG  emissions  annually  on  a  facility-by-facility 
basis.  In  addition,  on  December  15,  2009,  the  EPA  published  a  Final  Rule  finding  that  current  and  projected 
concentrations  of  six  key  GHG’s  in  the  atmosphere  threaten  public  health  and  welfare  of  current  and  future 
generations. The EPA also found that the combined emissions of these GHG’s from new motor vehicles and new 
motor vehicle engines contribute to pollution that threatens public health and welfare. This Final Rule, also known 
as  the  EPA’s  Endangerment  Finding,  does  not  impose  any  requirements  on  industry  or  other  entities  directly. 
However, the EPA must now finalize motor vehicle GHG standards, the effect of which could reduce demand for 
motor fuels refined from crude oil. Finally, according to the EPA, the final motor vehicle GHG standards will trigger 
construction and operating permit requirements for stationary sources. 

Further, proposed legislation has been introduced in Congress that would establish an economy-wide cap on 
emissions  of  GHG’s  in  the  United  States  and  would  require  most  sources  of  GHG  emissions  to  obtain  GHG 
emission “allowances” corresponding to their annual emissions of GHG’s. Moreover, in 2005, the Kyoto Protocol to 
the 1992 United Nations Framework  Convention on  Climate Change,  which establishes a binding  set of emission 
targets for greenhouse gases, became binding on all those countries that had ratified it. International discussions are 
currently  underway  to  develop  a  treaty  to  replace  the  Kyoto  Protocol  after  its  expiration  in  2012.  While  it  is  not 
possible  at  this  time  to  predict  how  legislation  that  may  be  enacted  to  address  GHG  emissions  would  impact  our 
business,  the  modification  of  existing  laws  or  regulations  or  the  adoption  of  new  laws  or  regulations  curtailing 
exploratory or developmental drilling for oil and gas could materially and adversely affect our operations by limiting 
drilling  opportunities  or  imposing  materially  increased  costs.  Moreover,  incentives  to  conserve  energy  or  use 
alternative  energy  sources  could  have  a  negative  impact  on  our  business  if  such  incentives  reduce  the  worldwide 
demand for oil and gas. 

Safety.  The  U.S.  Occupational  Safety  and  Health  Act,  or  OSHA,  and  other  similar  laws  and  regulations 
govern  the  protection  of  the  health  and  safety  of  employees.  The  OSHA  hazard  communication  standard,  EPA 
community  right-to-know  regulations  under  Title  III  of  CERCLA  and  analogous  state  statutes  require  that 
information be maintained about hazardous materials used or produced in our operations and that this information be 
provided to employees, state and local governments and citizens. We believe that we are in substantial compliance 
with these requirements and with other applicable OSHA requirements. 

Employees 

At December 31, 2010, we had approximately 5,900 employees, including employees engaged through labor 
contractors or agencies. Approximately 78 percent of our employees were engaged in operations outside of the U.S. 
and  approximately  22  percent  were  engaged  in  U.S.  operations.  We  are  not  a  party  to  any  collective  bargaining 
agreements that are material, and we consider our employee relations to be satisfactory. 

8 

 
 
 
 
 
 
 
 
Financial Information About Segments and Geographic Areas 

Information  regarding  our  revenues  from  external  customers,  segment  profit  or  loss  and  total  assets 
attributable  to  each  segment  for  the  last  three  fiscal  years  is  presented  in  Note  16  to  our  consolidated  financial 
statements included in this Annual Report on Form 10-K. 

Information regarding our operating revenues and identifiable assets attributable to each of our  geographic 
areas  of  operations  for  the  last  three  fiscal  years  is  presented  in  Note  16  to  our  consolidated  financial  statements 
included in this Annual Report on Form 10-K. 

Available Information 

Our  Annual  Report  on  Form  10-K,  quarterly  reports  on  Form  10-Q,  current  reports  on  Form  8-K  and 
amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the U.S. Securities Exchange 
Act of 1934 are available free of charge at our internet website at http://www.noblecorp.com. These filings are also 
available to the public at the U.S. Securities and Exchange Commission’s (“SEC”) Public Reference Room at 100 F 
Street, NE, Room 1580, Washington, DC 20549. The public may obtain information on the operation of the Public 
Reference Room by calling the SEC at 1-800-SEC-0330. Electronic filings with the SEC are also available on the 
SEC internet website at http://www.sec.gov. 

You may also find information related to our corporate governance, board committees and company code of 
ethics (and any amendments thereto or waivers of compliance therewith) at our website. Among the information you 
can find there is the following: 

•  Corporate Governance Guidelines;  

•  Audit Committee Charter;  

•  Nominating and Corporate Governance Committee Charter;  

•  Compensation Committee Charter; and  

•  Code of Business Conduct and Ethics.  

Item 1A. Risk Factors.  

You should carefully consider the following risk factors in addition to the other information included in this 
Annual Report on Form 10-K. Each of these risk factors could affect our business, operating results and financial 
condition, as well as affect an investment in our shares. 

Risk Factors Relating to Our Business 

Our business depends on the level of activity in the oil and gas industry, which is significantly affected by 

volatile oil and gas prices. 

Demand for drilling services depends on a variety of economic and political factors and the level of activity 
in offshore oil and gas exploration, development and production markets worldwide. Commodity prices, and market 
expectations  of  potential  changes  in  these  prices,  may  significantly  affect  this  level  of  activity.  However,  higher 
prices do not necessarily translate into increased drilling activity since our clients’ expectations of future commodity 
prices typically drive demand for our rigs. Oil and gas prices are extremely volatile and are affected by numerous 
factors beyond our control, including: 

• 

• 

laws  and  regulations  related  to  environmental  or  energy  security  matters,  including  those  addressing 
alternative energy sources and the risks of global climate change; 

the  political  environment  of  oil-producing  regions,  including  uncertainty  or  instability  resulting  from  civil 
disorder, an outbreak or escalation of armed hostilities or acts of war or terrorism; 

9 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
•  worldwide demand for oil and gas, which is impacted by changes in the rate of economic growth in the U.S. 

and other non-U.S. economies; 

• 

• 

• 

• 

• 

• 

the ability of OPEC to set and maintain production levels and pricing;  

the level of production in non-OPEC countries;  

the laws and regulations of governments regarding exploration and development of their oil and gas reserves 
or speculation regarding future laws or regulations; 

the cost of exploring for, developing, producing and delivering oil and gas; 

the discovery rate of new oil and gas reserves;  

the rate of decline of existing and new oil and gas reserves;  

•  available pipeline and other oil and gas transportation capacity;  

• 

the ability of oil and gas companies to raise capital;  

•  adverse weather conditions (such as hurricanes and monsoons) and seas;  

• 

• 

the development and exploitation of alternative fuels;  

tax policy;  

•  advances in exploration, development and production technology; and  

•  availability of, and access to, suitable acreage bearing hydrocarbons for our customers. 

Demand  for  our  drilling  services  may  decrease  due  to  events  beyond  our  control  and  some  of  our 

customers could seek to cancel, terminate or renegotiate their contracts. 

Our business could be impacted by events beyond our control including changes in our customers’ drilling 
programs or budgets or their liquidity (including access to capital), changes in, or prolonged reductions of, prices for 
oil  and  gas,  or  shifts  in  the  relative  strength  of  various  geographic  drilling  markets  brought  on  by  economic 
slowdown, or regional or worldwide recession, any of which could result in deterioration in demand for our drilling 
services. In addition, our customers may cancel drilling contracts or letter agreements or letters of intent for drilling 
contracts, or exercise early termination rights found in some of our drilling contracts or available under local law, 
for a variety of reasons, many of which are beyond our control. Depending upon market conditions, our customers 
may also seek renegotiation of firm drilling contracts to reduce their obligations. If the future level of demand for 
our drilling services or if future conditions in the offshore contract drilling industry decline, our financial position, 
results of operations and cash flows could be adversely affected. 

We may not be able to renew or replace expiring contracts.  

We  have  a  number  of  contracts  that  will  expire  in  2011  and  2012.  Our  ability  to  renew  these  contracts  or 
obtain new contracts and the terms of any such contracts will depend on market conditions and the condition of our 
customers. We may be unable to renew our expiring contracts or obtain new contracts for the rigs under contracts 
that have expired or been terminated, and the dayrates under any new contracts may be below, perhaps substantially 
below, the existing dayrates, which could have a material adverse effect on our results of operations and cash flows. 

10 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The U.S. governmental, regulatory, and industry response to the Deepwater Horizon drilling rig accident 
and resulting oil spill has, and could continue to have, a prolonged and material adverse impact on our U.S. Gulf 
of Mexico operations. 

Subsequent to the April 20, 2010 fire and explosion on the Deepwater Horizon, a competitor’s drilling rig in 
the U.S. Gulf of Mexico, U.S. governmental authorities implemented a moratorium on and suspension of specified 
types  of  drilling  activities  in  the  U.S.  Gulf  of  Mexico.  On  October  12,  2010,  the  U.S.  government  lifted  the 
moratorium following adoption of new regulations including a drilling safety rule and a workplace safety rule, each 
of  which  imposed  multiple  obligations  relating  to  offshore  drilling  operations.  These  obligations  relate  to,  among 
other  things,  additional  certifications  and  verifications  relating  to  compliance  with  applicable  regulations; 
compatibility of blowout preventers with drilling rigs and well design; third-party inspections and design review of 
blowout  preventers;  testing  of  casing  installations;  minimum  requirements  for  personnel  operating  blowout 
preventers; and training in deepwater well control. In January 2011, the government agency charged with reviewing 
compliance with new regulations determined that it could not yet issue drilling permits under the new regulations. 

In addition, the U.S. government has indicated that before any new deepwater drilling resumes, (i) operators 
must  demonstrate  that  containment  resources  are  available  promptly  in  the  event  of  a  deepwater  blowout,  (ii)  the 
chief  executive  officer  of  each  operator  seeking  to  perform  deepwater  drilling  must  certify  that  the  operator  has 
complied  with  all  applicable  regulations  and  (iii)  the  Bureau  of  Ocean  Energy  Management,  Regulation  and 
Enforcement  will  conduct  inspections  of  each  deepwater  drilling  operation  for  compliance  with  the  applicable 
regulations. 

There  have  been  and  may  continue  to  be  judicial  and  other  challenges  made  with  respect  to  some  of  the 
government imposed restrictions on U.S. Gulf of Mexico drilling operations. However, we cannot predict (1) how 
those challenges will be resolved, (2) how the resolution of those challenges may affect the scope or duration of the 
government-imposed  restrictions  or  (3)  the  actions  the  U.S.  government  may  take,  whether  in  response  to  those 
challenges  or  otherwise.  We  also  cannot  predict  when  the  applicable  government  agency  will  determine  that  any 
deepwater driller is in compliance with the new regulations. 

Our existing U.S. Gulf of Mexico operations have been and will continue to be negatively impacted by the 
events  and  governmental  actions  described  above.  U.S.  governmental  restrictions  and  regulations  have  and  may 
continue to result in a number of our rigs and those of others being moved, or becoming available for moving, to 
locations outside of the U.S. Gulf of Mexico, which could potentially reduce global dayrates and negatively affect 
our  ability  to  contract  our  rigs  that  are  currently  uncontracted  or  coming  off  contract.  In  addition,  U.S.  or  other 
governmental  authorities  could  implement  additional  regulations  concerning  licensing,  taxation,  equipment 
specifications and training requirements that could increase the costs of our operations. Additionally, increased costs 
for  our  customers’  operations,  along  with  permitting  delays,  could  negatively  affect  the  economics  of  currently 
planned  or  future  exploration  and  development  activity  and  result  in  a  reduction  in  demand  for  our  services. 
Furthermore, due to the Deepwater Horizon accident and resulting oil spill, insurance costs across the industry could 
increase, and certain insurance may be less available or not available at all, which could negatively affect us over 
time. 

At this time, we cannot predict for how long or to what extent our operations will be adversely impacted by 
the governmental, regulatory and industry response to the Deepwater Horizon drilling rig accident and resulting oil 
spill nor can we predict: 

• 

• 

• 

• 

• 

the extent of additional or substitute regulations and restrictions that may be imposed on drilling operations 
in the U.S. Gulf of Mexico; 

the extent to which drilling operations subsequent to the moratorium period will be impacted or the delay in 
issuing permits for new or continued drilling; 

the extent to which customers may seek to terminate existing contracts or the demand by customers for new 
or renewed drilling contracts; 

the availability of, or delays in delivery of, equipment required to comply with any new regulations; 

the effect of the developments described above on demand for our services in the U.S. Gulf of Mexico. 

11 

 
 
 
 
 
 
 
 
 
 
 
 
Depending  on  their  duration  and  extent,  these  and  related  developments  could  continue  to  have  a  material 

adverse effect on our results of operations, cash flows and liquidity relating to the U.S. Gulf of Mexico. 

The recent worldwide instability in the financial and credit sectors and economic recession could have a 

material adverse effect on our financial position, results of operations and cash flows. 

The recent worldwide financial and credit situation reduced the availability of liquidity and credit to fund the 
continuation  and  expansion  of  industrial  business  operations  worldwide.  The  shortage  of  liquidity  and  credit 
combined  with substantial losses in  worldwide equity  markets led to a recession in the United States, Europe and 
Japan. A slowdown in economic activity caused by a worldwide recession, combined with lower prices for oil and 
gas, reduced worldwide demand for energy and demand for drilling services. If demand for drilling services declines 
further,  we  could  experience  a  decline  in  dayrates  for  new  contracts  and  a  slowing  in  the  pace  of  new  contract 
activity.  Demand  for  our  services  depends  on  oil  and  natural  gas  industry  activity  and  expenditure  levels  that  are 
directly affected by trends in oil and natural gas prices. Demand for our services is particularly sensitive to the level 
of exploration, development, and production activity of, and the corresponding capital spending by, oil and natural 
gas companies. Any prolonged reduction in oil and natural gas prices or material impairment of our customers’ cash 
flow  or  liquidity,  including  their  access  to  capital,  could  result  in  lower  levels  of  exploration,  development  and 
production activity. Lower levels of exploration activity could result in a corresponding decline in the demand for 
our drilling services, which could have a material adverse effect on our financial position, results of operations and 
cash flows. The financial situation may also adversely affect the ability of shipyards to meet scheduled deliveries of 
our newbuilds and our ability to renew our fleet through new vessel construction projects and conversion projects. 

We  are  substantially  dependent  on  several  of  our  customers  including  Shell,  Petrobras  and  Pemex,  and 
the  loss  of  these  customers  could  have  a  material  adverse  effect  on  our  financial  condition  and  results  of 
operations. 

We estimate Shell and Petrobras represents more than 62 percent and 26 percent, respectively, of our backlog 
at December 31, 2010 and revenues from Pemex, Petrobras and Shell accounted for 20 percent, 19 percent and 12 
percent  of  our  total  operating  revenues  for  the  year  ended  December  31,  2010.  This  concentration  of  customers 
increases the risks associated  with any possible termination or nonperformance of contracts by either customer in 
addition to our exposure to credit risk of either customer. If either of these customers  were to terminate or fail to 
perform their obligations under their contracts and we were not able to find other customers for the affected drilling 
units promptly, our financial condition and results of operations could be materially adversely affected. 

Construction,  conversion  or  upgrades  of  rigs  are  subject  to  risks,  including  delays  and  cost  overruns, 

which could have an adverse impact on our available cash resources and results of operations. 

We  currently  have  significant  new  construction  projects  and  conversion  projects  underway  and  we  may 
undertake additional such projects in the future. In addition, we make significant upgrade, refurbishment and repair 
expenditures for our fleet from time to time, particularly as our rigs become older. Some of these expenditures are 
unplanned. These projects and other efforts of this type are subject to risks of cost overruns or delays inherent in any 
large construction project as a result of numerous factors, including the following: 

• 

shortages of equipment, materials or skilled labor;  

•  work stoppages and labor disputes;  

•  unscheduled delays in the delivery of ordered materials and equipment;  

• 

local customs strikes or related work slowdowns that could delay importation of equipment or materials; 

•  weather interferences;  

•  difficulties in obtaining necessary permits or approvals or in meeting permit or approval conditions; 

•  design and engineering problems;  

12 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
• 

latent  damages  or  deterioration  to  hull,  equipment  and  machinery  in  excess  of  engineering  estimates  and 
assumptions; 

•  unforeseen increases in the cost of equipment, labor and raw materials, particularly steel; 

•  unanticipated actual or purported change orders;  

•  client acceptance delays;  

•  disputes with shipyards and suppliers;  

•  delays in, or inability to obtain, access to funding;  

• 

• 

shipyard  failures  and  difficulties,  including  as  a  result  of  financial  problems  of  shipyards  or  their 
subcontractors; and 

failure or delay of third-party equipment vendors or service providers.  

Failure to complete a rig upgrade or new construction on time, or the inability to complete a rig conversion or 
new  construction  in  accordance  with  its  design  specifications,  may,  in  some  circumstances,  result  in  loss  of 
revenues,  penalties,  or  delay,  renegotiation  or  cancellation  of  a  drilling  contract  or  the  recognition  of  an  asset 
impairment.  Additionally,  capital  expenditures  for  rig  upgrade,  refurbishment  and  construction  projects  could 
materially  exceed  our  planned  capital  expenditures.  Moreover,  our  rigs  undergoing  upgrade,  refurbishment  and 
repair may not earn a dayrate during the period they are out of service. 

We could be adversely affected by violations of applicable anti-corruption laws and our failure to comply 

with the terms of our settlement agreements with the DOJ and SEC. 

We operate in a number of countries throughout the world, including countries known to have a reputation 
for corruption. We are committed to doing business in accordance with applicable anti-corruption laws and our code 
of business conduct and ethics. We are subject, however, to the risk that we, our affiliated entities or their respective 
officers, directors, employees and agents may take action determined to be in violation of such anti-corruption laws, 
including  the  U.S.  Foreign  Corrupt  Practices  Act  of  1977  (“FCPA”)  and  similar  laws  in  other  countries.  Any 
violation  of  the  FCPA  or  other  applicable  anti-corruption  laws  could  result  in  substantial  fines,  sanctions,  civil 
and/or  criminal  penalties  and  curtailment  of  operations  in  certain  jurisdictions  and  might  adversely  affect  our 
business,  results  of  operations  or  financial  condition.  In  addition,  actual  or  alleged  violations  could  damage  our 
reputation and ability to do business. Further, detecting, investigating, and resolving actual or alleged violations is 
expensive and can consume significant time and attention of our senior management. 

In 2007, we began an internal investigation of the legality under the FCPA of certain activities in Nigeria. In 
November 2010, we finalized settlements of this matter with each of the SEC and the DOJ. Under the settlements 
with the DOJ and SEC, we agreed to, among other things, pay certain fines and interest and disgorge certain profits, 
cooperate with the DOJ, comply with the FCPA, comply with certain self-reporting and annual reporting obligations 
and comply with an injunction restraining us from violating the anti-bribery, books and records and internal controls 
provisions of the FCPA. Our ability to comply with the terms of the settlements is dependent on the success of our 
ongoing compliance program, including our ability to continue to manage our agents and supervise, train and retain 
competent  employees,  and  the  efforts  of  our  employees  to  comply  with  applicable  law  and  our  code  of  business 
conduct and ethics. 

Also, in January 2011, the Nigerian Economic and Financial Crimes Commission and the Nigerian Attorney 
General Office initiated an investigation into these same activities. A subsidiary of Noble-Swiss resolved this matter 
through  the  execution  of  a  non-prosecution  agreement  dated  January  28,  2011.  Pursuant  to  this  agreement,  the 
subsidiary paid $2.5 million to resolve all charges and claims of the Nigerian government. Any additional sanctions 
we  may  incur  as  a  result  of  any  such  investigation  could  damage  our  reputation  and  result  in  substantial  fines, 
sanctions, civil and/or criminal penalties and curtailment of operations in certain jurisdictions and might adversely 
affect our business, results of operations or financial condition. Further, resolving any such additional investigations 
could be expensive and consume significant time and attention of our senior management. 

13 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Possible changes in tax laws could affect us and our shareholders.  

We  are  a  Swiss  company  and  operate  through  various  subsidiaries  in  numerous  countries  throughout  the 
world including the United States. Consequently, we are subject to changes in tax laws, treaties or regulations or the 
interpretation or enforcement thereof in the U.S., Switzerland or jurisdictions in which we or any of our subsidiaries 
operate or are resident. 

Tax laws and regulations are highly complex and subject to interpretation. Consequently, we are subject to 
changing tax laws, treaties and regulations in and between countries in which we operate, including treaties between 
the United States and other nations. Our income tax expense is based upon our interpretation of the tax laws in effect 
in various countries at the time that the expense was incurred. If these laws, treaties or regulations change or if the 
U.S.  Internal  Revenue  Service  or  other  taxing  authorities  do  not  agree  with  our  assessment  of  the  effects  of  such 
laws, treaties and regulations, this could have a material adverse effect on us, including the imposition of a higher 
effective  tax  rate  on  our  worldwide  earnings  or  a  reclassification  of  the  tax  impact  of  our  significant  corporate 
restructuring transactions. 

In  addition,  the  manner  in  which  our  shareholders  are  taxed  on  distributions  on,  and  dispositions  of,  our 
shares could be affected by changes in tax laws, treaties or regulations or the interpretation or enforcement thereof in 
the U.S., Switzerland or other jurisdictions in which our shareholders are resident. Any such changes could affect 
the trading price of our shares. 

Our business involves numerous operating hazards.  

Our  operations  are  subject  to  many  hazards  inherent  in  the  drilling  business,  including  blowouts,  fires  and 
collisions or groundings of offshore equipment, and damage or loss from adverse weather and seas. These hazards 
could cause personal injury or loss of life, suspend drilling operations or seriously damage or destroy the property 
and  equipment  involved,  result  in  claims  by  employees,  customers  or  third  parties  and,  in  addition  to  causing 
environmental  damage,  could  cause  substantial  damage  to  oil  and  natural  gas  producing  formations  or  facilities. 
Operations also may be suspended because of machinery breakdowns, abnormal drilling conditions, and failure of 
subcontractors  to  perform  or  supply  goods  or  services,  or  personnel  shortages.  Damage  to  the  environment  could 
also  result  from  our  operations,  particularly  through  oil  spillage  or  extensive  uncontrolled  fires.  We  may  also  be 
subject to damage claims by oil and gas companies. 

The contract drilling industry is a highly competitive and cyclical business with intense price competition. 

If we are not able to compete successfully, our profitability may be reduced. 

The  offshore  contract  drilling  industry  is  a  highly  competitive  and  cyclical  business  characterized  by  high 
capital and maintenance costs. Drilling contracts are traditionally awarded on a competitive bid basis. Intense price 
competition,  rig  availability,  location  and  suitability,  experience  of  the  workforce,  efficiency,  safety  performance 
record, technical capability and condition of equipment, operating integrity, reputation, industry standing and client 
relations  are  all  factors  in  determining  which  contractor  is  awarded  a  job.  Mergers  among  oil  and  natural  gas 
exploration  and  production  companies  from  time  to  time  may  reduce  the  number  of  available  clients,  resulting  in 
increased price competition. 

Our  industry  has  historically  been  cyclical.  There  have  been  periods  of  high  demand,  short  rig  supply  and 
high  dayrates,  followed  by  periods  of  lower  demand,  excess  rig  supply  and  low  dayrates.  Periods  of  excess  rig 
supply intensify the competition in the industry and  may result  in  some of our rigs being idle  for long periods of 
time. Prolonged periods of low utilization and low dayrates could result in the recognition of impairment charges on 
certain  of  our  drilling  rigs  if  future  cash  flow  estimates,  based  upon  information  available  to  management  at  the 
time, indicate that the carrying value of these rigs may not be recoverable. 

The  increase  in  supply  created  by  the  number  of  rigs  being  built,  as  well  as  changes  in  our  competitors’ 
drilling  rig  fleets,  could  intensify  price  competition  and  require  higher  capital  investment  to  keep  our  rigs 
competitive. In addition, the supply attributable to newbuild rigs, especially those being built on speculation, could 
cause  a  reduction  in  future  dayrates.  In  certain  markets,  for  example,  we  are  experiencing  competition  from 
newbuild jackups that are scheduled to enter the market in 2011 and beyond. The entry of these newbuild jackups 
into the  market  may result in lower  marketplace dayrates  for jackups. Similarly, there are a number of deepwater 
newbuilds that are scheduled to enter the market over the next several years, which could also adversely affect the 
dayrates for these units. 

14 

 
 
 
 
 
 
 
 
 
 
 
We  may  have  difficulty  obtaining  or  maintaining  insurance  in  the  future  and  we  cannot  fully  insure 

against all of the risks and hazards we face. 

No assurance can be given that we will be able to obtain insurance against all risks or that we will be able to 
obtain  or  maintain  adequate  insurance  in  the  future  at  rates  and  with  deductibles  or  retention  amounts  that  we 
consider commercially reasonable. 

The damage sustained to offshore oil and gas assets as a result of hurricanes in 2005 and 2008 caused the 
insurance market for U.S. named windstorm perils to deteriorate significantly. Consequently, beginning in 2009, we 
elected  to  self  insure  U.S.  named  windstorm  coverage.  Currently,  our  units  deployed  in  the  U.S.  Gulf  of  Mexico 
include  eight  semisubmersibles,  four  jackups,  two  submersibles  and  one  FPSO.  We  have  not  yet  concluded  the 
March  2011  renewal  of  our  insurance  program,  but  we  expect  to  continue  self  insuring  U.S.  named  windstorm 
perils. Our rigs located in the Mexican portion of the Gulf of Mexico remain covered by commercial insurance for 
windstorm damage up  to the  declared value of each unit. If one or  more future  significant  weather-related events 
occur  in  the  Gulf  of  Mexico,  or  in  any  other  geographic  area  in  which  we  operate,  we  may  experience  further 
increases in insurance costs, additional coverage restrictions or unavailability of certain insurance products. 

Although  we  maintain  insurance  in  the  geographic  areas  in  which  we  operate,  pollution,  reservoir  damage 
and environmental risks generally are not fully insurable. Our insurance policies and contractual rights to indemnity 
may not adequately cover our losses or may have exclusions of coverage for some losses. We do not have insurance 
coverage  or  rights  to  indemnity  for  all  risks,  including  loss  of  hire  insurance  on  most  of  the  rigs  in  our  fleet. 
Uninsured  exposures  may  include  expatriate  activities  prohibited  by  U.S.  laws  and  regulations,  radiation  hazards, 
certain loss or damage to property onboard our rigs and losses relating to shore-based terrorist acts or strikes. If a 
significant accident or other  event occurs and is not  fully  covered by  insurance or contractual indemnity, it could 
adversely affect our financial position, results of operations or cash flows. Additionally, there can be no assurance 
that those parties with contractual obligations to indemnify us will necessarily be financially able to indemnify us 
against all these risks. 

Governmental laws and regulations, including environmental laws and regulations, may add to our costs 

or limit our drilling activity. 

Our  business  is  affected  by  public  policy  and  laws  and  regulations  relating  to  the  energy  industry  and  the 

environment in the geographic areas where we operate. 

The drilling industry is dependent on demand for services from the oil and gas exploration and production 
industry,  and  accordingly,  we  are  directly  affected  by  the  adoption  of  laws  and  regulations  that  for  economic, 
environmental  or  other  policy  reasons  curtail  exploration  and  development  drilling  for  oil  and  gas.  We  may  be 
required  to  make  significant  capital  expenditures  to  comply  with  governmental  laws  and  regulations.  It  is  also 
possible that these laws and regulations  may in the  future  add significantly to our operating costs or significantly 
limit drilling activity. Governments in some foreign countries are increasingly active in regulating and controlling 
the  ownership  of  concessions,  the  exploration  for  oil  and  gas,  and  other  aspects  of  the  oil  and  gas  industries. 
Additionally, there is increasing attention in the United States and worldwide concerning the issue of climate change 
and  the  effect  of  greenhouse  gases.  For  further  discussion,  see  “Part  I,  Item  1.  Business  —  Governmental 
Regulations and Environmental Matters.” The modification of existing laws or regulations or the adoption of new 
laws  or  regulations  that  result  in  the  curtailment  of  exploratory  or  developmental  drilling  for  oil  and  gas  could 
materially  and  adversely  affect  our  operations  by  limiting  drilling  opportunities  or  imposing  materially  increased 
costs. 

Our operations are also subject to numerous laws and regulations controlling the discharge of materials into 
the environment or otherwise relating to the protection of the environment. As a result, the application of these laws 
could  have  a  material  adverse  effect  on  our  results  of  operations  by  increasing  our  cost  of  doing  business, 
discouraging  our  customers  from  drilling  for  hydrocarbons  or  subjecting  us  to  liability.  For  example,  we,  as  an 
operator  of  mobile  offshore  drilling  units  in  navigable  U.S.  waters  and  certain  offshore  areas,  including  the  U.S. 
Outer Continental Shelf, are liable for damages and  for the cost of removing oil spills  for  which  we  may be held 
responsible,  subject  to  certain  limitations.  Our  operations  may  involve  the  use  or  handling  of  materials  that  are 
classified as environmentally  hazardous.  Laws and regulations protecting  the environment  have  generally become 
more  stringent  and  in  certain  circumstances  impose  “strict  liability”,  rendering  a  person  liable  for  environmental 
damage without regard to negligence or fault. Environmental laws and regulations may expose us to liability for the 
conduct of or conditions caused by others or for acts that were in compliance with all applicable laws at the time 
they were performed. 

15 

 
 
 
 
 
 
 
 
 
Our global operations involve additional risks.  

We operate in various regions throughout the world that may expose us to political and other uncertainties, 

including risks of: 

• 

• 

terrorist acts, war and civil disturbances;  

seizure, nationalization or expropriation of property or equipment;  

•  monetary policies and foreign currency fluctuations and devaluations;  

• 

the inability to repatriate income or capital;  

•  complications associated with repairing and replacing equipment in remote locations; 

•  piracy;  

• 

• 

import-export quotas,  wage and price controls, imposition  of trade barriers and other forms of  government 
regulation and economic conditions that are beyond our control; 

regulatory or financial requirements to comply with foreign bureaucratic actions; and 

•  changing taxation policies.  

Our operations are subject to various laws and regulations in countries in which we operate, including laws 

and regulations relating to: 

• 

• 

the importing, exporting, equipping and operation of drilling units;  

repatriation of foreign earnings; 

•  currency exchange controls; 

•  oil and gas exploration and development;  

• 

taxation of offshore earnings and earnings of expatriate personnel; and  

•  use and compensation of local employees and suppliers by foreign contractors. 

Our ability to do business in a number of jurisdictions is subject to maintaining required licenses and permits 
and  complying  with  applicable  laws  and  regulations.  We  have  historically  operated  our  drilling  units  offshore 
Nigeria under temporary import permits. We have one jackup rig in Nigeria which is operating under a temporary 
import permit which expired in November 2008 and we have a pending application to renew this permit. We have 
received  approval  from  the  Nigerian  Customs  office  that  we  will  be  allowed  to  obtain  a  new  temporary  import 
permit  for  this  rig.  We  recently  received  a  new  temporary  import  permit  for  another  rig  in  Nigeria  that  had  been 
waiting for a temporary import permit based on a long-standing application. We continue to seek to avoid material 
disruption to our Nigerian operations; however, there can be no assurance that we will be able to obtain new permits 
or further extensions of permits necessary to continue the operation of our rigs in Nigeria. If we cannot obtain a new 
permit  or  an  extension  necessary  to  continue  operations  of  any  rig,  we  may  need  to  cease  operations  under  the 
drilling contract for such rig and relocate such rig from Nigerian waters. We cannot predict what impact these events 
may  have  on  any  such  contract  or  our  business  in  Nigeria,  and  we  could  face  additional  fines  and  sanctions  in 
Nigeria.  Furthermore,  we  cannot  predict  what  changes,  if  any,  relating  to  temporary  import  permit  policies  and 
procedures may be established or implemented in Nigeria in the future, or how any such changes may impact our 
business there. 

16 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
For additional information regarding our internal investigation of our Nigerian operations and the status of 
our temporary import permits in Nigeria, see “Part II Item 8. Financial Statements and Supplementary Data, Note 14 
—  Commitments  and  Contingencies.”  Changes  in,  compliance  with,  or  our  failure  to  comply  with  the  laws  and 
regulations  of  the  countries  where  we  operate,  including  Nigeria,  may  negatively  impact  our  operations  in  those 
countries and could have a material adverse effect on our results of operations. 

The Nigerian Maritime Administration and Safety Agency (“NIMASA”) is seeking to collect a two percent 
surcharge on contract amounts  under contracts performed  by  “vessels”,  within the  meaning of Nigeria’s cabotage 
laws, engaged in the Nigerian coastal shipping trade. We do not believe that our offshore drilling units are engaged 
in the Nigerian coastal shipping trade nor that our units are “vessels” within the meaning of Nigeria’s cabotage laws. 
In  January  2008  we  filed  a  declaratory  judgment  action  in  the  Federal  High  Court  of  Nigeria  seeking  relief  from 
NIMASA’s attempt to apply the cabotage laws to our operations. In February 2009, NIMASA filed suit against us in 
the Federal High Court of Nigeria seeking collection of this surcharge. In August 2009, the court ruled in our favor 
in our declaratory judgment action. NIMASA  has appealed the court’s ruling, but NIMASA’s suit against us  was 
subsequently  dismissed.  The  outcome  of  any  such  legal  action  and  the  extent  to  which  we  may  ultimately  be 
responsible for the surcharge is uncertain. We may be required to pay the surcharge and comply with other aspects 
of  the  Nigerian  cabotage  laws,  which  could  adversely  affect  our  operations  in  Nigerian  waters  and  require  us  to 
incur additional costs of compliance. For additional information regarding these actions relating to the application of 
the cabotage laws, see “Part II, Item 8. Financial Statements and Supplementary Data, Note 14 — Commitments and 
Contingencies.” 

NIMASA has also informed the Nigerian Content Division of its position that we are not in compliance with 
the cabotage laws. The Nigerian Content Division makes determinations of companies’ compliance with applicable 
local content regulations  for  purposes of  government contracting, including contracting  for services in connection 
with oil and gas concessions where the Nigerian national oil company is a partner. The Nigerian Content Division 
had  barred  us  from  participating  in  tenders  for  new  projects  as  a  result  of  NIMASA’s  allegations,  but  we  are 
currently  able  to  participate  based  on  the  court’s  ruling  in  our  favor.  However,  no  assurance  can  be  given  with 
respect to our ability to bid for future work in Nigeria until our dispute with NIMASA is resolved. 

Governmental action, including initiatives by OPEC, may continue to cause oil price volatility. In some areas 
of  the  world,  this  governmental  activity  has  adversely  affected  the  amount  of  exploration  and  development  work 
done by major oil companies, which may continue. In addition, some governments favor or effectively require the 
awarding  of  drilling  contracts  to  local  contractors,  require  use  of  a  local  agent  or  require  foreign  contractors  to 
employ  citizens  of,  or  purchase  supplies  from,  a  particular  jurisdiction.  These  practices  may  adversely  affect  our 
ability to compete and our results of operations. 

Failure  to  attract  and  retain  highly  skilled  personnel  or  an  increase  in  personnel  costs  could  hurt  our 

operations. 

We  require  highly  skilled  personnel  to  operate  and  provide  technical  services  and  support  for  our  drilling 
units.  As  the  demand  for  drilling  services  and  the  size  of  the  worldwide  industry  fleet  increases,  shortages  of 
qualified personnel have occurred from time to time. These shortages could result in our loss of qualified personnel 
to  competitors,  impair  our  ability  to  attract  and  retain  qualified  personnel  for  our  new  or  existing  drilling  units, 
impair the timeliness and quality of our  work and create upward pressure on personnel  costs, any of  which could 
adversely affect our operations. 

Fluctuations in exchange rates and nonconvertibility of currencies could result in losses to us. 

We  may  experience  currency  exchange  losses  where  revenues  are  received  or  expenses  are  paid  in 
nonconvertible currencies or where we do not hedge an exposure to a foreign currency. We may also incur losses as 
a result of an inability to collect revenues because of a shortage of convertible currency available to the country of 
operation, controls over currency exchange or controls over the repatriation of income or capital. 

17 

 
 
 
 
 
 
 
 
 
 
We are subject to litigation that could have an adverse effect on us.  

We are, from time to time, involved in various litigation  matters. These matters  may  include, among other 
things,  contract  disputes,  personal  injury  claims,  asbestos  and  other  toxic  tort  claims,  environmental  claims  or 
proceedings,  employment  matters,  governmental  claims  for  taxes  or  duties,  and  other  litigation  that  arises  in  the 
ordinary  course  of  our  business.  Although  we  intend  to  defend  these  matters  vigorously,  we  cannot  predict  with 
certainty  the  outcome  or  effect  of  any  claim  or  other  litigation  matter,  and  there  can  be  no  assurance  as  to  the 
ultimate  outcome  of  any  litigation.  Litigation  may  have  an  adverse  effect  on  us  because  of  potential  negative 
outcomes, costs of attorneys, the allocation of management’s time and attention, and other factors. 

Forward-Looking Statements 

This report on Form 10-K includes “forward-looking statements” within the meaning of Section 27A of the 
U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended. 
All  statements  other  than  statements  of  historical  facts  included  in  this  report  regarding  our  financial  position, 
business strategy, plans and objectives of management for future operations, industry conditions, and indebtedness 
covenant compliance are  forward-looking  statements. When used in this report, the  words “anticipate,”  “believe,” 
“estimate,” “expect,” “intend,” “may,” “plan,” “project,” “should” and similar expressions are intended to be among 
the statements that identify forward-looking statements. Although we believe that the expectations reflected in such 
forward-looking  statements  are  reasonable,  we  cannot  assure  you  that  such  expectations  will  prove  to  have  been 
correct. We have identified factors that could cause actual plans or results to differ materially from those included in 
any forward-looking statements. These factors include those described in “Risk Factors” above, or in our other SEC 
filings, among others. Such risks and uncertainties are beyond our ability to control, and in many cases, we cannot 
predict the risks and uncertainties that could cause our actual results to differ materially from those indicated by the 
forward-looking statements. You should consider these risks when you are evaluating us. 

Item 1B. Unresolved Staff Comments.  

None.  

Item 2. Properties.  

Drilling Fleet 

Our  drilling  fleet  is  composed  of  the  following  types  of  units:  semisubmersibles,  drillships,  jackups  and 
submersibles. Each type of drilling rig is described further below. We also own one FPSO. Several factors determine 
the type of unit most suitable for a particular job, the most significant of which include the water depth and ocean 
floor  conditions  at  the  proposed  drilling  location,  whether  the  drilling  is  being  done  over  a  platform  or  other 
structure, and the intended well depth. 

Semisubmersibles 

Semisubmersibles are floating platforms which, by means of a water ballasting system, can be submerged to 
a predetermined depth so that a substantial portion of the hull is below the water surface during drilling operations. 
These units  maintain their position over the  well through the  use of either a  fixed  mooring system or a computer 
controlled  dynamic  positioning  system  and  can  drill  in  many  areas  where  jackups  cannot  drill.  However, 
semisubmersibles  normally  require  water  depth  of  at  least  200  feet  in  order  to  conduct  operations.  Our 
semisubmersibles  are  capable  of  drilling  in  water  depths  of  up  to  12,000  feet,  depending  on  the  unit. 
Semisubmersibles are more expensive to construct and operate than jackups. 

Our semisubmersible fleet consists of 14 units, including:  

• 

• 

five units that have been converted to Noble EVA-4000™ semisubmersibles; 

three Friede & Goldman 9500 Enhanced Pacesetter semisubmersibles;  

18 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
• 

• 

two Pentagone 85 semisubmersibles;  

two Bingo 9000 design unit submersibles;  

•  one Aker H-3 Twin Hull S1289 Column semisubmersible; and  

•  one Offshore Co. SCP III Mark 2 semisubmersible.  

Drillships 

All of our drillships are self-propelled vessels. The dynamically positioned drillships operate through the use 
of a computer controlled operating system that is used to maintain the vessel’s position. Our conventionally moored 
drillships drill over the well through a fixed mooring system which keeps the drillship in place over the well. Our 
drillships vary in maximum drillable water depth ranging from 1,500 to 12,000 feet. The maximum drilling depth of 
our  drillships  ranges  from  20,000  feet  up  to 40,000  feet.  Like  semisubmersibles,  drillships  are  more  expensive  to 
construct and operate than standard jackups. 

Our drillship fleet consists of 12 units, including:  

• 

• 

• 

two  dynamically  positioned  harsh  environment  drillships  currently  under  construction  with  HHI  with 
scheduled completion dates in the second and fourth quarters of 2013, respectively; 

two  dynamically  positioned  Globetrotter-class  drillships  currently  under  construction  with  scheduled 
completion dates of the fourth quarter of 2011 and the third quarter of 2013, respectively; 

two  dynamically  positioned  Bully-class  drillships  currently  under  construction  and  to  be  operated  by  us 
through  a  50  percent  joint  venture  with  a  subsidiary  of  Shell  with  estimated  completion  dates  in  the  third 
quarter and fourth quarter of 2011, respectively; 

•  one conventionally moored Sonat Discoverer Class drillship capable of drilling in Arctic environments; 

•  one dynamically positioned NAM Nedlloyd-C drillship;  

• 

three dynamically positioned Gusto Engineering Pelican Class drillships; and 

•  one conventionally moored conversion class drillship.  

Jackups 

We currently  have 45 jackups in the  fleet, including two  high-specification heavy duty,  harsh environment 
jackups currently under construction. Jackups are  mobile, self-elevating drilling platforms equipped  with legs that 
can be lowered to the ocean floor until a foundation is established for support. The rig hull includes the drilling rig, 
jacking  system,  crew  quarters,  loading  and  unloading  facilities,  storage  areas  for  bulk  and  liquid  materials, 
helicopter  landing  deck  and  other  related  equipment.  All  of  our  jackups  are  independent  leg  (i.e.,  the  legs  can  be 
raised or lowered independently of each other) and cantilevered. A cantilevered jackup has a feature that permits the 
drilling platform to be extended out from the hull, allowing it to perform drilling or workover operations over pre-
existing platforms or structures. Moving a rig to the drill site involves jacking up its legs until the hull is floating on 
the surface of the water. The hull is then towed to the drill site by tugs and the legs are jacked down to the ocean 
floor. The jacking operation continues until the hull is raised out of the water, and drilling operations are conducted 
with the hull in its raised position. Our jackups are capable of drilling to a maximum depth of 30,000 feet in water 
depths ranging between eight and 400 feet, depending on the jackup. 

Submersibles 

We have two submersibles in the fleet that are cold-stacked. Submersibles are mobile drilling platforms that 
are towed to the drill site and submerged to drilling position by flooding the lower hull until it rests on the sea floor, 
with the upper deck above the water surface. Our submersibles are capable of drilling to a maximum depth of 25,000 
feet in water depths ranging between 12 and 70 feet. 

19 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Drilling Fleet Table 

The  following  table  sets  forth  certain  information  concerning  our  offshore  fleet  at  January  19,  2011.  The 
table does not include any units owned by operators for which we had labor contracts. We operate and own all of the 
units included in the table. 

Name 
Semisubmersibles — 14 
Noble Amos Runner .................  Noble EVA-4000™ 
Noble Clyde Boudreaux............  F&G 9500 Enhanced Pacesetter 
Noble Danny Adkins.................  Bingo 9000 — DP  
Noble Dave Beard.....................  F&G 9500 Enhanced Pacesetter — 

Make 

  Year Built 
  or Rebuilt (1)   

 Water 
 Depth 
 Rating 
  (feet)   

  Drilling 
  Depth 
 Capacity 
(feet) 

Location 

  Status (2)   

1999 R/2008 M 
2007 R/M 
2009 R 

  8,000 
  10,000 
  12,000 

32,500  U.S. Gulf of Mexico  Active 
35,000  U.S. Gulf of Mexico  Active 
35,000  U.S. Gulf of Mexico  Active 

DP  

2008 R 

  10,000 

35,000  Brazil 

Active 

2007 R 
2004 R 
2010 R 
1999 R/2006 M 
2003 R 
1999 R 
1998 R/2007 M 
2006 R 
2004 R 
2000 R 

Noble Driller .............................  Aker H-3 Twin Hull S1289 

Column 

Noble Homer Ferrington...........  F&G 9500 Enhanced Pacesetter 
Noble Jim Day ..........................  Bingo 9000 — DP 
Noble Jim Thompson................  Noble EVA-4000™ 
Noble Lorris Bouzigard ............  Pentagone 85 
Noble Max Smith......................  Noble EVA-4000™ 
Noble Paul Romano ..................  Noble EVA-4000™ 
Noble Paul Wolff ......................  Noble EVA-4000™ — DP 
Noble Therald Martin................  Pentagone 85 
Noble Ton van Langeveld (3).......  Offshore Co. SCP III Mark 2 
Drillships — 12 
Noble Bully I (3)(6) ......................  GustoMSC Bully PRD 12000 
Noble Bully II (3)(6).....................  GustoMSC Bully PRD 12000 
Noble Discoverer (3) ..................  Sonat Discoverer Class 
Noble Duchess ..........................  Conversion 
Noble Globetrotter I (3) ..............  Globetrotter Class 
Noble Globetrotter II (3).............  Globetrotter Class 
Noble Leo Segerius...................  Gusto Engineering Pelican Class 
Noble Muravlenko ....................  Gusto Engineering Pelican Class 
Noble Phoenix...........................  Gusto Engineering Pelican Class 
Noble Roger Eason ...................  NAM Nedlloyd — C 
Noble Newbuild Drillship #1 (3)...   Hyundai Gusto P 10000 
Noble Newbuild Drillship #2 (3)...   Hyundai Gusto P 10000 
Independent Leg Cantilevered Jackups — 45 (Continued to next page) 
Dhabi II .....................................  Baker Marine BMC 150 
Noble Al White (3) .....................  CFEM T-2005-C 
Noble Alan Hay ........................  Levingston Class 111-C 
Noble Bill Jennings...................  MLT Class 84 — E.R.C. 
Noble Byron Welliver (3) ...........  CFEM T-2005-C 
Noble Carl Norberg...................  MLT Class 82-C 
Noble Charles Copeland ...........  MLT Class 82-SD-C 
Noble Charlie Yester.................  MLT Class 116-C 
Noble Chuck Syring..................  MLT Class 82-C 
Noble David Tinsley .................  Modec 300C-38 
Noble Dick Favor......................  Baker Marine BMC 150 
Noble Don Walker ....................  Baker Marine BMC 150-SD 
Noble Earl Frederickson ...........  MLT Class 82-SD-C 
Noble Ed Holt ...........................  Levingston Class 111-C 
Noble Ed Noble.........................  MLT Class 82-SD-C 
Noble Eddie Paul ......................  MLT Class 84 — E.R.C. 
Noble Gene House ....................  Modec 300C-38 
Noble Gene Rosser....................  Levingston Class 111-C 
Noble George McLeod .............  F&G L-780 MOD II 
Noble George Sauvageau (3)......  NAM Nedlloyd-C 
Noble Gus Androes...................  Levingston Class 111-C 
Noble Hans Deul (3) ...................  F&G JU-2000E 
Noble Harvey Duhaney.............  Levingston Class 111-C 

2011 N 
2011 N 
2009 R 
1975 
2011 N 
2013 N 
2002 R 
1997 R 
2008 R 
2005 R 
2013 N 
2013 N 

2006 R 
2005 R 
2005 R 
1997 R 
1982 
2003 R 
2001 R 
1980 
1996 R 
2010 R 
2004 R 
1992 R 
1999 R 
2003 R 
2003 R 
1995 R 
1998 R 
1996 R 
1995 R 
1981 
2004 R 
2009 N 
2001 R 

  5,000 
  7,200 
  12,000 
  6,000 
  4,000 
  7,000 
  6,000 
  9,200 
  4,000 
  1,500 

  8,200 
  8,200 
  2,000 
  1,500 
  10,000 
  10,000 
  5,600 
  4,900 
  5,000 
  7,200 
  12,000 
  12,000 

150 
360 
300 
390 
300 
250 
280 
300 
250 
300 
150 
150 
250 
300 
250 
390 
300 
300 
300 
250 
300 
400 
300 

30,000  U.S. Gulf of Mexico  Active 
30,000  Malta 
Active 
35,000  U.S. Gulf of Mexico  Active 
32,500  U.S. Gulf of Mexico  Active 
25,000  U.S. Gulf of Mexico  Active 
30,000  Mexico 
Active 
32,500  U.S. Gulf of Mexico  Active 
Active 
30,000  Brazil 
Active 
25,000  Brazil 
Active 
25,000  U.K. 

40,000  Singapore 
40,000  Singapore 
20,000  New Zealand 
25,000  Nigeria 
30,000  China 
30,000  China 
20,000  Brazil 
20,000  Brazil 
25,000  Brunei 
25,000  Brazil 
40,000  South Korea 
40,000  South Korea 

20,000  U.A.E. 
30,000  The Netherlands 
25,000  U.A.E. 
25,000  Mexico 
30,000  U.K. 
20,000  Mexico 
20,000  U.A.E. 
25,000  India 
20,000  U.A.E. 
25,000  U.A.E. 
20,000  U.A.E. 
20,000  Cameroon 
20,000  Mexico 
25,000  India 
20,000  Nigeria 
25,000  Mexico 
25,000  Qatar 
25,000  Mexico 
25,000  India 
25,000  The Netherlands 
30,000  Qatar 
30,000  The Netherlands 
25,000  Qatar 

Shipyard 
Shipyard 
Active 
Active 
Shipyard 
Shipyard 
Active 
Active 
Active 
Active 
Shipyard 
Shipyard 

Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 

See footnotes on the following page. 

20 

 
 
 
 
  
  
  
  
 
  
  
  
  
 
 
  
  
  
  
  
 
 
  
  
  
  
 
 
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  Year Built 
  or Rebuilt (1) 
Name 
Independent Leg Cantilevered Jackups — 45 (Continued from previous page)  

Make 

Noble Jimmy Puckett ...........   F&G L-780 MOD II 
Noble Joe Beall ....................   Modec 300C-38 
Noble John Sandifer .............   Levingston Class 111-C 
Noble Johnnie Hoffman .......   Baker Marine BMC 300 
Noble Julie Robertson (3) (4).......   BMC 300 Harsh Weather Class 
Noble Kenneth Delaney .......   F&G L-780 MOD II 
Noble Leonard Jones............   MLT Class 53 - E.R.C. 
Noble Lewis Dugger ............   Levingston Class 111-C 
Noble Lloyd Noble...............   MLT Class 82-SD-C 
Noble Lynda Bossler (3) ........   MSC/CJ-46 
Noble Alan Hay....................   Levingston Class 111-C 
Noble Percy Johns................   F&G L-780 MOD II 
Noble Piet van Ede (3) ...........   MSC/CJ-46 
Noble Roger Lewis (3)...........   F&G JU-2000E 
Noble Ronald Hoope (3) ........   MSC/CJ-46 
Noble Roy Butler (5)..............   F&G L-780 MOD II 
Noble Roy Rhodes ...............   MLT Class 116-C 
Noble Sam Noble .................   Levingston Class 111-C 
Noble Scott Marks (3)............   F&G JU-2000E 
Noble Tom Jobe ...................   MLT Class 82-SD-C 
Noble Tommy Craighead .....   F&G L-780 MOD II 
Noble Jackup I- Newbuild (3)......  F&G JU-3000N 
Noble Jackup II- Newbuild (3) ....  F&G JU-3000N 
Submersibles — 2 
Noble Joe Alford ..................   Pace Marine 85G 
Noble Lester Pettus ..............   Pace Marine 85G 
FPSO- 1 
Seillean.................................   Harland & Wolf Shipbuilding 

2002 R 
2004 R 
1995 R 
1993 R 
2001 R 
1998 R 
1998 R 
1997 R 
1990 R 
1982 
2005 R 
1995 R 
1982 
2007 
1982 
1998 R 
2009 R 
1982 
2009 N 
1982 
2003 R 
2013 N 
2013 N 

2006 R 
2007 R 

2008 R 

  Water 
  Depth 
 Rating 
  (feet)   

  Drilling 
  Depth 
  Capacity 
(feet) 

Location 

  Status (2)   

300   
300   
300   
300   
390   
300   
390   
300   
250   
250   
300   
300   
250   
400   
250   
300   
300   
300   
400   
250   
300   
400   
400   

25,000  Qatar 
25,000  Qatar 
25,000  Mexico 
25,000  Mexico 
25,000  U.K. 
25,000  India 
25,000  Mexico 
25,000  Mexico 
20,000  Nigeria 
25,000  The Netherlands 
25,000  U.A.E. 
25,000  Nigeria 
25,000  The Netherlands 
30,000  Qatar 
25,000  The Netherlands 
25,000  Mexico 
25,000  U.A.E. 
25,000  Mexico 
30,000  The Netherlands 
25,000  Mexico 
25,000  Cameroon 
30,000  Singapore 
30,000  Singapore 

Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Active 
Shipyard 
Shipyard 

70   
70   

25,000  U.S. Gulf of Mexico  Stacked 
25,000  U.S. Gulf of Mexico  Stacked 

N/A   

N/A  U.S. Gulf of Mexico  Active 

Footnotes to Drilling Fleet Table 

1.  Rigs designated with an “R” were modified, refurbished or otherwise upgraded in the year indicated by capital 
expenditures in an amount deemed material by management. Rigs designated with an “N” are newbuilds. Rigs 
designated with an “M” have been upgraded to the Noble NC-5SM mooring standard. 

2.  Rigs  listed  as  “active”  were  either  operating  under  contract as of January 19, 2011 or  were actively  seeking 
contracts;  rigs  listed  as  “shipyard”  are  in  a  shipyard  for  construction,  repair,  refurbishment  or  upgrade;  rigs 
listed as “stacked” are idle without a contract and are not actively marketed in present market conditions. 

3.  Harsh environment capability.  

4.  Although designed for a water depth rating of 390 feet of water in a non-harsh environment, the rig is currently 
equipped with legs adequate to drill in approximately 200 feet of water in a harsh environment. We own the 
additional leg sections required to extend the drilling depth capability to 390 feet of water. 

5.  Although  designed  for  a  water  depth  rating  of  300  feet  of  water,  the  rig  is  currently  equipped  with  legs 
adequate to drill in approximately 250 feet of water. We own the additional leg sections required to extend the 
drilling depth capability to 300 feet of water. 

6.  We will operate the Noble Bully I and Noble Bully II through joint ventures with a subsidiary of Shell. 

Facilities 

Our corporate office is located in Baar, Switzerland. In addition, we maintain executive offices for executive 
officers and selected personnel in Geneva, Switzerland. We also maintain office space in Sugar Land, Texas where 
significant worldwide global support activity occurs. We own and lease administrative and marketing offices, and 
sites  used  primarily  for  storage,  maintenance  and  repairs,  and  research  and  development  for  drilling  rigs  and 
equipment in various locations worldwide. 

21 

 
 
 
  
  
  
 
  
  
  
 
 
  
  
 
 
 
  
  
  
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
Item 3. Legal Proceedings.  

Information  regarding  legal  proceedings  is  set  forth  in  Note  14  to  our  consolidated  financial  statements 

included in Item 8 of this Annual Report on Form 10-K. 

PART II 

Item  5.  Market  for  Registrant’s  Common  Equity,  Related  Stockholder  Matters  and  Issuer  Purchases  of 

Equity Securities. 

Market for Shares and Related Shareholder Information 

Noble-Swiss  shares  are  listed  and  traded  on  the  New  York  Stock  Exchange  under  the  symbol  “NE”.  The 
following table sets forth for the periods indicated the high and low sales prices and dividends or returns of capital 
declared and paid in U.S. Dollars per share: 

  High   

  Low   

  Dividends 
 Declared and 
Paid 

2010 
Fourth quarter .................................................................................................  $  38.00  $  33.14  $ 
Third quarter................................................................................................... 
Second quarter ................................................................................................ 
First quarter .................................................................................................... 

  30.36 
  27.04 
  38.94 

  35.95 
  43.63 
  44.87 

2009 
Fourth quarter .................................................................................................  $  44.78  $  36.15  $ 
Third quarter................................................................................................... 
Second quarter ................................................................................................ 
First quarter .................................................................................................... 

  28.14 
  24.16 
  20.81 

  39.39 
  37.03 
  28.48 

0.13 
0.66 
0.04 
0.05 

0.05 
0.09 
— 
0.04 

The declaration and payment of dividends or distributions and returns of capital in the future by Noble-Swiss 
and the making of distributions of capital, including returns of capital in the form of par value reductions, require 
authorization of the shareholders of Noble-Swiss. The amount of such dividends, distributions and returns of capital 
will  depend  on  our  results  of  operations,  financial  condition,  cash  requirements,  future  business  prospects, 
contractual restrictions and other factors deemed relevant by our Board of Directors and our shareholders. 

On February 14, 2011, there were 252,336,929 of our shares outstanding held by 1,598 shareholder accounts 

of record. 

Swiss Tax Consequences to Shareholders of Noble 

The  tax  consequences  discussed  below  are  not  a  complete  analysis  or  listing  of  all  the  possible  tax 
consequences that may be relevant to shareholders of Noble. Shareholders should consult their own tax advisors in 
respect of the tax consequences related to receipt, ownership, purchase or sale or other disposition of our shares and 
the procedures for claiming a refund of withholding tax. 

Swiss Income Tax on Dividends and Similar Distributions 

A non-Swiss holder will not be subject to Swiss income taxes on dividend income and similar distributions in 
respect  of  our  shares,  unless  the  shares  are  attributable  to  a  permanent  establishment  or  a  fixed  place  of  business 
maintained  in  Switzerland  by  such  non-Swiss  holder.  However,  dividends  and  similar  distributions  are  subject  to 
Swiss withholding tax. See “—Swiss Withholding Tax—Distributions to Shareholders.” 

22 

 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Swiss Wealth Tax 

A non-Swiss holder will not be subject to Swiss wealth taxes unless the holder’s shares are attributable to a 

permanent establishment or a fixed place of business maintained in Switzerland by such non-Swiss holder. 

Swiss Capital Gains Tax upon Disposal of Shares 

A non-Swiss holder will not be subject to Swiss income taxes for capital gains unless the holder’s shares are 
attributable to a permanent establishment or a fixed place of business maintained in Switzerland by such non-Swiss 
holder. In such case, the non-Swiss holder is required to recognize capital gains or losses on the sale of such shares, 
which will be subject to cantonal, communal and federal income tax. 

Swiss Withholding Tax—Dividends to Shareholders  

A  Swiss  withholding  tax  of  35  percent  is  due  on  dividends  to  our  shareholders  from  us,  regardless  of  the 
place  of  residency  of  the  shareholder  (subject  to  the  exceptions  discussed  under  “—Exemption  from  Swiss 
Withholding Tax—Distributions to Shareholders” below). We will be required to withhold at such rate and remit on 
a net basis any payments  made to a holder of our shares and pay such  withheld amounts to the Swiss federal tax 
authorities. Please see “—Refund of Swiss Withholding Tax on Dividends and Other Distributions.” 

Exemption from Swiss Withholding Tax—Distributions to Shareholders  

Under present Swiss tax law, distributions to shareholders in relation to a reduction of par value are exempt 
from Swiss withholding tax. Since January 1, 2011, distributions to shareholders out of qualifying additional paid-in 
capital  for  Swiss  statutory  purposes  are  exempt  from  the  Swiss  withholding  tax.  Consequently,  we  expect  that  a 
substantial amount of any potential future distributions, whether distributed as a reduction of par value or directly 
out of qualifying additional paid-in capital may be exempt from Swiss withholding tax. 

Repurchases of Shares 

Under  present  Swiss  tax  law,  repurchases  of  shares  for  the  purposes  of  capital  reduction  are  treated  as  a 
partial  liquidation  subject  to  the  35  percent  Swiss  withholding  tax.  However,  for  shares  repurchased  for  capital 
reduction,  the  portion  of  the  repurchase  price  attributable  to  the  par  value  of  the  shares  repurchased  will  not  be 
subject to the Swiss withholding tax. Since January 1, 2011, the portion of the repurchase price attributable to the 
qualifying additional paid-in capital for Swiss statutory reporting purposes of the shares repurchased will also not be 
subject  to  the  Swiss  withholding  tax.  We  would  be  required  to  withhold  at  such  rate  the  tax  from  the  difference 
between the repurchase price and the related amount of par value and the related amount of qualifying additional 
paid-in  capital.  We  would  be  required  to  remit  on  a  net  basis  the  purchase  price  with  the  Swiss  withholding  tax 
deducted to a holder of our shares and pay the withholding tax to the Swiss federal tax authorities. 

With respect to the refund of Swiss withholding tax from the repurchase of shares, see “—Refund of Swiss 

Withholding Tax on Dividends and Other Distributions” below. 

In  most instances, Swiss companies listed on the SIX Swiss Exchange (“SIX”), carry out share repurchase 
programs through a “second trading line” on the SIX. Swiss institutional investors typically purchase shares from 
shareholders on the open market and then sell the shares on the second trading line back to the company. The Swiss 
institutional investors are generally able to receive a full refund of the withholding tax. Due to, among other things, 
the  time  delay  between  the  sale  to  the  company  and  the  institutional  investors’  receipt  of  the  refund,  the  price 
companies pay to repurchase  their shares has historically been slightly  higher (but less than one percent) than the 
price of such companies’ shares in ordinary trading on the SIX first trading line. 

We do not expect to be able to use the SIX second trading line process to repurchase our shares because we 
do not currently intend to list our shares on the SIX. However, we have in the past and intend to continue to follow 
an alternative process whereby we expect to be able to repurchase our shares in a manner that should allow Swiss 
institutional  market  participants  selling  the  shares  to  us  to  receive  a  refund  of  the  Swiss  withholding  tax  and, 
therefore, accomplish the same purpose as share repurchases on the second trading line at substantially the same cost 
to us and such market participants as share repurchases on a second trading line. 

23 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The repurchase of shares for purposes other than capital reduction, such as to retain as treasury shares for use 
in connection with stock incentive plans, convertible debt or other instruments within certain periods, will generally 
not be subject to Swiss withholding tax. 

Refund of Swiss Withholding Tax on Dividends and Other Distributions 

Swiss holders — A Swiss tax resident, corporate or individual, can recover the withholding tax in full if such 
resident is the beneficial owner of our shares at the time the dividend or other distribution becomes due and provided 
that such resident reports the gross distribution received on such resident’s income tax return, or in the case of an 
entity, includes the taxable income in such resident’s income statement. 

Non-Swiss holders — If the shareholder that receives a distribution from us is not a Swiss tax resident, does 
not  hold  our  shares  in  connection  with  a  permanent  establishment  or  a  fixed  place  of  business  maintained  in 
Switzerland,  and  resides  in  a  country  that  has  concluded  a  treaty  for  the  avoidance  of  double  taxation  with 
Switzerland  for  which  the  conditions  for  the  application  and  protection  of  and  by  the  treaty  are  met,  then  the 
shareholder may be entitled to a full or partial refund of the  withholding tax described above. The procedures for 
claiming treaty refunds (and the time frame required for obtaining a refund) may differ from country to country. 

Switzerland  has  entered  into  bilateral  treaties  for  the  avoidance  of  double  taxation  with  respect  to  income 
taxes  with  numerous  countries,  including  the  U.S.,  whereby  under  certain  circumstances  all  or  part  of  the 
withholding tax may be refunded. 

U.S. residents — The Swiss-U.S. tax treaty provides that U.S. residents eligible for benefits under the treaty 
can  seek  a  refund  of  the  Swiss  withholding  tax  on  dividends  for  the  portion  exceeding  15  percent  (leading  to  a 
refund of 20 percent) or a full refund in the case of qualified pension funds. 

As a general rule, the refund will be granted under the treaty if the U.S. resident can show evidence of: 

•  beneficial ownership,  

•  U.S. residency, and  

•  meeting the U.S.-Swiss tax treaty’s limitation on benefits requirements. 

The  claim  for  refund  must  be  filed  with  the  Swiss  federal  tax  authorities  (Eigerstrasse  65,  3003  Berne, 
Switzerland), no later than December 31 of the third year following the year in which the dividend payments became 
due. The relevant Swiss tax form is Form 82C for companies, 82E for other entities and 82I for individuals. These 
forms can be obtained from any Swiss Consulate General in the U.S. or from the Swiss federal tax authorities at the 
address  mentioned  above  or  at  www.estv.admin.ch  (English,  Anticipatory  Tax,  Services,  Domicile  abroad).  Each 
form needs to be filled out in triplicate, with each copy duly completed and signed before a notary public in the U.S. 
Evidence that the withholding tax was withheld at the source must also be included. 

Stamp  duties  in  relation  to  the  transfer  of  shares  — The  purchase  or  sale  of  our  shares  may  be  subject  to 
Swiss federal stamp taxes on the transfer of securities irrespective of the place of residency of the purchaser or seller 
if  the  transaction  takes  place  through  or  with  a  Swiss  bank  or  other  Swiss  securities  dealer,  as  those  terms  are 
defined in the Swiss Federal Stamp Tax Act and no exemption applies in the specific case. If a purchase or sale is 
not entered into through or with a Swiss bank or other Swiss securities dealer, then no stamp tax will be due. The 
applicable stamp tax rate is 0.075 percent for each of the two parties to a transaction and is calculated based on the 
purchase  price  or  sale  proceeds.  If  the  transaction  does  not  involve  cash  consideration,  the  transfer  stamp  duty  is 
computed on the basis of the market value of the consideration. 

24 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Purchases of Shares 

The  following  table  sets  forth  for  the  periods  indicated  certain  information  with  respect  to  repurchases  by 

Noble-Swiss of its shares: 

Period 
October 2010 .........................  
November 2010 .....................  
December 2010......................  

  Total Number 
of Shares 
  Purchased 

  Average 
  Price Paid 
  per Share   
0.00 

—  $   
174  $   
4,240  $   

34.18(2)   
34.95(3)   

  Total Number of 
  Shares Purchased 
 as Part of Publicly 
  Announced Plans 
or Programs 

 Maximum Number 
  of Shares that May 
  Yet Be Purchased 
  Under the Plans 
  or Programs (1) 

6,769,891 
6,769,891 
6,769,891 

— 
— 
— 

(1)  All share purchases  made in  the open  market and  were pursuant to the  share repurchase program  which our 
Board  of  Directors  authorized  and  adopted  and  our  shareholders  approved.  Our  repurchase  program  has  no 
date of expiration. 

(2) 

(3) 

Includes 174 shares at an average price of $34.18 per share surrendered by employees for withholding taxes 
payable upon the vesting of restricted stock. 

Includes 4,240 shares at an average price of $34.95 per share surrendered by employees for withholding taxes 
payable upon the vesting of restricted stock. 

25 

 
 
 
 
  
  
  
  
 
  
  
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Stock Performance Graph 

This  graph  shows  the  cumulative  total  shareholder  return  of  our  shares  over  the  five-year  period  from 
January 1, 2006 to December 31, 2010. The graph also  shows the cumulative  total returns  for the same five-year 
period  of  the  S&P  500  Index  and  the  Dow  Jones  U.S.  Oil  Equipment  &  Services  Index.  The  graph  assumes  that 
$100 was invested in our shares and the two indices on January 1, 2006 and that all dividends or distributions and 
returns of capital were reinvested on the date of payment. 

Company Name / Index 
Noble Corporation ..........................................................  $  108.20  $  161.00  $  64.01  $  118.59  $  107.14 
  111.99 
S&P 500 Index ............................................................... 
  140.78 
Dow Jones U.S. Oil Equipment & Services ................... 

97.33 
  110.56 

  122.16 
  164.47 

  115.79 
  113.47 

76.96 
66.94 

  2010 

  2006 

  2007 

INDEXED RETURNS 
Year Ended December 31, 
  2009 
  2008   

Investors are cautioned against drawing any conclusions from the data contained in the graph, as past results 

are not necessarily indicative of future performance. 

The above graph and related information shall not be deemed “soliciting material” or to be “filed” with the 
SEC, nor shall such information be incorporated by reference into any future filing under the Securities Act of 1933 
or  Securities  Exchange  Act  of  1934,  each  as  amended,  except  to  the  extent  that  we  specifically  incorporate  it  by 
reference into such filing. 

26 

 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 6. Selected Financial Data.  

The following table sets  forth selected financial data of us  and our consolidated subsidiaries over the  five-
year  period  ended  December  31,  2010,  which  information  is  derived  from  our  audited  financial  statements.  This 
information should be read in connection with, and is qualified in its entirety by, the more detailed information in 
our financial statements included in Item 8 of this Annual Report on Form 10-K. 

2010 

Year Ended December 31, 
2008 
(In thousands, except per share amounts) 

2007 

2009 

2006 

Statement of Income Data 
Operating revenues ..........................   $  2,807,176  $  3,640,784  $  3,446,501  $  2,995,311  $  2,100,239 

Net income attributable to Noble 
Corporation................................  

Net income per share: 

Basic ........................................  
Diluted .....................................  

773,429 

  1,678,642 

1,560,995 

1,206,011 

731,866 

3.03 
3.02 

6.44 
6.42 

5.85 
5.81 

4.49 
4.45 

2.68 
2.65 

Balance Sheet Data (at end of 
period) 
Cash and marketable securities....   $ 
Property and equipment, net ........  
Total assets ..................................  
Long-term debt ............................  
Total debt (1) ...............................  
Total equity..................................  

337,871  $ 

735,493  $ 

513,311  $ 

161,058  $ 

  10,048,087 
  11,221,321 
2,686,484 
2,766,697 
7,287,634 

  6,634,452 
  8,396,896 
750,946 
750,946 
  6,788,432 

5,647,017 
7,106,799 
750,789 
923,487 
5,290,715 

4,795,916 
5,876,006 
774,182 
784,516 
4,308,322 

61,710 
  3,858,393 
  4,585,914 
684,469 
694,098 
  3,228,993 

Other Data 

Net cash from operating activities.....  $  1,654,376  $  2,136,716  $  1,888,192  $  1,414,373  $ 
Net cash from investing activities ..... 
Net cash from financing activities..... 
Capital expenditures ....................  
Working capital ...........................  
Cash dividends/par value reduction 
declared per share (2) (3) ..............  

  (1,495,059) 
(419,475) 
  1,431,498 
  1,049,243 

(1,129,293)   
(406,646)   
1,231,321 
561,348 

(2,913,943) 
861,945 
1,423,484 
110,347 

(1,223,873) 
(91,152) 
1,287,043 
367,419 

0.88 

0.91 

0.12 

0.18 

988,715 
(349,910) 
(698,940) 
  1,122,061 
143,720 

0.08 

____________ 
(1)  Consists of Long-Term Debt and Current Maturities of Long-Term Debt.  
(2)  During the third quarter of 2009, we began paying a return on capital in the form of par value reductions, in lieu 
of dividends, based upon an amount in Swiss Francs.  Amounts listed are in U.S. Dollars at the exchange rate 
that the dividend was paid. 

(3)  The  par  value  reductions  or  cash  dividends  declared  in  2010  and  2008  includes  a  special  dividend  of 

approximately $0.56 and $0.75 per share, respectively. 

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. 

The following discussion is intended to assist  you in  understanding our  financial position at December 31, 
2010  and  2009,  and  our  results  of  operations  for  each  of  the  years  in  the  three-year  period  ended  December  31, 
2010.  You  should  read  the  accompanying  consolidated  financial  statements  and  related  notes  in  conjunction  with 
this discussion. 

Executive Overview 

Our 2010 financial and operating results include:  

•  operating revenues totaling $2.8 billion;  

•  net income of $773 million or $3.02 per diluted share;  

•  net cash from operating activities totaling $1.7 billion; and  

•  an increase in debt to 27.5 percent of total capitalization at the end of 2010, up from 10.0 percent at 
the  end  of  2009  due  to  the  issuance  of  $1.25  billion  in  debt  and  the  assumption  of  $689  million  in 
consolidated joint venture debt to fund the acquisition of Frontier. 

27 

 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The overall offshore drilling market has been challenging since the events occurring in connection with the 
Deepwater Horizon and the U.S. governmental response to the incident. Despite the lifting of the moratorium and 
publication of new  safety rules,  we are unable to predict when normal drilling operations  will resume in the U.S. 
Gulf of Mexico and we believe it is unlikely that we will see significant activity in the U.S. Gulf of Mexico for some 
time as indicated by the difficulties surrounding the issuance of new drilling permits. Outside of the U.S. Gulf of 
Mexico, demand has been  fairly steady, but  well below the previous peak levels of 2008. We believe the risk for 
early  contract  terminations  or  defaults  under  existing  contracts  has  decreased  and  the  overall  future  market  for 
offshore drilling activity is positive. 

Despite  improvements  in  the  economy,  there  is  still  uncertainty  regarding  the  sustainability  of  the  global 
economic  recovery,  which  is  proceeding  unevenly  in  different  geographic  regions.  In  addition,  there  is  still 
uncertainty regarding the sustainability of the recovery of the global financial markets highlighted by issues in the 
credit  markets.  During  2010,  oil  prices  increased  fifteen  percent  while  U.S.  natural  gas  prices  decreased  almost 
twenty percent. While we believe that this improvement in oil prices will result in increased drilling activity in 2011, 
we continue to anticipate volatility in our industry for the foreseeable future. 

Despite  the  increase  in  commodity  prices,  we  have  not  seen  a  significant  increase  in  demand  for  offshore 
drilling services. Developments in the U.S. Gulf of Mexico will continue to have an impact on the deepwater market 
segment  in  the  short-term,  however,  we  believe  that  the  long-term  outlook  is  stronger.  Market  dayrates  for  new 
ultra-deepwater units remain generally above $400,000, which is a significantly lower than the rates in 2007-2008. 
Demand  in  the  jackup  segment  increased  during  2010  and  utilization  for  units  operating  outside  the  U.S.  Gulf  of 
Mexico was approximately 80 percent. We did not operate any jackups in the U.S. Gulf of Mexico in 2010. During 
2010,  we  started  to  see  differentiation  in  the  jackup  market  segment  with  newer  units  having  utilization  rates 
exceeding  90  percent,  while  units  that  entered  service  before  2000  having  utilization  rates  closer  to  70  percent. 
Likewise,  there  has  been  a  bifurcation  of  dayrates  between  older  and  newer  units  in  the  jackup  market  with  new 
units earning a premium. Dayrates for both older and newer units have been relatively stable over the second half of 
2010, but significantly lower than the highs reached during 2007 and 2008. 

Demand for our drilling services generally depends on a variety of economic and political factors, including 
worldwide demand for oil and gas, the ability of the Organization of Petroleum Exporting Countries (“OPEC”) to 
set and maintain production levels and pricing, the level of production of non-OPEC countries and the policies of 
various governments regarding exploration and development of their oil and gas reserves. Our results of operations 
depend on offshore drilling activity worldwide. Historically, oil and gas prices and market expectations of potential 
changes in these prices have significantly affected that level of activity. Generally, higher oil and natural gas prices 
or our customers’ expectations of higher prices result in greater demand for our services and lower oil and gas prices 
result in reduced demand for our services. Demand for our services is also a function of the  worldwide supply of 
mobile  offshore  drilling  units.  Industry  sources  report  that  a  total  of  55  newbuild  jackups  and  61  deepwater 
newbuilds are planned or under construction  with  scheduled delivery dates in 2011 and beyond. Industry analysts 
have predicted that a new wave of speculative building of both jackups and ultra-deepwater units has commenced. 
The introduction of additional non-contracted rigs into the marketplace could have an adverse effect on demand for 
our services or the dayrates we are able to achieve. 

In  addition,  as  a  result  of  exploration  discoveries  offshore  Brazil,  Petrobras,  the  Brazilian  national  oil 
company, announced a plan to construct up to 28 deepwater rigs in Brazil and recently accepted bids to construct 
these units from a number of shipyards and drilling contractors. Petrobras originally declared its intention to finance 
and own the first nine of these additional rigs. Petrobras also stated that they would seek long-term contracts for the 
remaining 19 rigs to support construction and to allow drilling contractors to bid for the opportunity to supply up to 
four rigs per contractor. During 2010, shipyards and Brazilian contractors submitted bids to build deepwater rigs for 
Petrobras.  A  deepwater  drilling  rig  construction  industry  does  not  currently  exist  in  Brazil  and  Noble  did  not 
participate in these bids primarily because we felt the capital risk associated with constructing a unit in Brazil at this 
time was inappropriate. On February 11, 2011, media reported that Petrobras had awarded the first tranche of seven 
drillships to a Brazilian shipyard for delivery beginning in 2015. The future of Petrobras’ building program remains 
uncertain  and  the  ultimate  number  of  deepwater  rigs  to  be  built  in  Brazil  is  still  unknown.  While  Petrobras  is 
currently  in  the  market  tendering  for  existing  deepwater  drilling  units,  the  potential  increase  in  supply  from  the 
Petrobras newbuild could also adversely impact overall industry dayrates and economics. 

28 

 
 
 
 
 
 
 
As  of  January  19,  2011,  we  had  five  jackup  units  operating  with  Pemex  in  Mexico,  all  of  which  have 
contracts scheduled to expire in 2011. Pemex  has approved extensions to contracts  for certain of these rigs as the 
contracts have reached expiration and has issued four ‘fast-track’ tenders aimed at keeping  units  working through 
the first quarter of 2011, but has allowed some of our other rigs to become available. Some recent tenders published 
by Pemex contain a requirement that certain units must have entered service since the year 2000. While Pemex has 
not yet succeeded in securing a significant number of younger rigs, we cannot predict whether this age requirement 
will be present in future Pemex tenders. If this requirement is present in future tenders, it could require us to seek 
work  for  our  rigs  in  other  locations,  as  the  ages  of  our  rigs  currently  operating  in  Mexico  do  not  meet  this 
requirement.  If  such  work  is  not  available,  it  could  lead  to  additional  idle  time  on  some  of  our  rigs.  We  cannot 
predict how many rigs might be affected or how long they could remain idle. As of February 11, 2011, tenders for 
14 jackup rigs had been published. These tenders do not contain age restrictions and are due to be opened in the first 
quarter of 2011 with work commencing in the first and second quarters of 2011. We remain optimistic that many, if 
not all, of our rigs currently operating in Mexico will continue to work for Pemex. 

In  January  2011,  we  announced  the  signing  of  a  Memorandum  of  Understanding  (“MOU”)  with  Petrobras 
regarding  operations  in  Brazil.  Under  the  terms  of  the  MOU,  we  would  substitute  the  dynamically  positioned 
deepwater drillship Noble Phoenix, then under contract with Shell in Southeast Asia, for the dynamically positioned 
drillship  Noble  Muravlenko.  In  January  2011,  Shell  agreed  to  release  the  Noble  Phoenix  from  its  contract.  Upon 
release by Shell, the Noble Phoenix will undergo limited contract preparations, after which the unit would mobilize 
to Brazil. We expect that acceptance of the Noble Phoenix in Brazil by Petrobras will take place in the fourth quarter 
of 2011. In connection with the cancelation of the contract on the Noble Phoenix, we recognized a non-cash gain of 
approximately $55 million in the first quarter of 2011. 

In January 2011, we reached a decision that  we  will not proceed  with the previously announced reliability 
upgrade  to  the  Noble  Muravlenko  that  was  scheduled  to  take  place  in  2013.  As  a  result  of  the  cancelation  of  the 
upgrade,  we  expect  that  our  first  quarter  2011  results  will  include  an  associated  non-cash  impairment  charge 
currently estimated to be approximately $40 million. 

In connection with our existing drilling contracts with Petrobras for two of our drillships operating in Brazil, 
we approved certain shipyard reliability upgrade projects for these drillships, the Noble Leo Segerius, and the Noble 
Roger Eason. These upgrade projects, planned for 2010 through 2012, are designed to enhance the reliability and 
operational  performance  of  these  drillships.  There  are  a  number  of  risks  associated  with  shipyard  projects  of  this 
nature,  particularly  in  Brazil,  including  potential  project  delays  and  cost  overruns  due  to  labor,  customs,  local 
shipyard, local content and other issues. In addition, the drilling contracts for these vessels provide Petrobras with 
certain rights of termination in the event of excessive downtime, and it is possible that Petrobras could exercise this 
right  in  the  future  with  respect  to  one  or  more  of  these  drillships.  We  intend  to  continue  to  closely  monitor  and 
discuss  with  Petrobras  the  status  of  these  projects  and  plan  to  take  appropriate  steps  to  mitigate  identified  risks, 
which  depending  upon  the  circumstances  could  involve  a  variety  of  options.  In  January  2011,  we  canceled  an 
upgrade project on a third drillship in Brazil, the Noble Muravlenko. 

While  we  cannot  predict  the  future  level  of  demand  for  our  drilling  services  or  future  conditions  in  the 
offshore contract drilling industry, we continue to believe we are well positioned within the industry and believe our 
acquisition  of  Frontier  further  strengthens  our  position,  especially  in  deepwater  drilling.  Furthermore,  we  believe 
that  our  financial  strength  as  demonstrated  by  our  entrance  into  a  new  credit  facility  and  our  recent  sale  of  $1.1 
billion of senior notes will continue to serve us well if additional opportunities present themselves in the future. 

Our business strategy continues to be the active expansion of our worldwide offshore drilling and deepwater 
capabilities  whereby  we  move  our  fleet  towards  the  latest  technology  while  maintaining  the  highest  level  of 
operational integrity with respect to health, safety, and the environment. Historically, we have accomplished this via 
rig  and  hull  upgrades  and  modifications,  acquisitions,  and  divestitures  of  lower  specification  units.  While 
divestitures  of  non-competitive  assets  continue  to  be  a  part  of  the  strategy,  many  of  our  existing  units  have  been 
upgraded to their technical limits and our ability to complete acquisitions has been limited by market conditions. As 
a result, in recent years, we have actively expanded our fleet through the construction of new rigs, including jackups 
and drillships. In all of our investment decisions we seek to achieve a strong return on capital for the benefit of our 
shareholders. During 2010, we continued our strategy as indicated by the following activities: 

•  we  completed  the  acquisition  of  Frontier  which  added  a  total  of  five  drillships  (including  two  Bully-class 
joint venture-owned drillships under construction and to be completed in 2011), one semisubmersible and an 
FPSO to the fleet; 

•  we  completed  construction  on  the  Noble  Dave  Beard,  a  dynamically  positioned  ultra-deepwater 
semisubmersible that left the shipyard during the first quarter of 2010 and began operating under a long-term 
contract in Brazil; 

29 

 
 
 
 
 
 
 
 
 
•  we completed construction on the Noble Jim Day, a dynamically positioned ultra-deepwater semisubmersible 

that left the shipyard during the third quarter of 2010; 

•  we continued construction on one dynamically positioned, ultra-deepwater, harsh environment Globetrotter-

class drillship, which is scheduled to be delivered to our customer in the fourth quarter of 2011; 

•  we began construction on one dynamically positioned, ultra-deepwater, harsh environment Globetrotter-class 

drillship, which is scheduled to be delivered to our customer in the fourth quarter of 2013; and 

•  we announced we would construct two high-specification heavy duty, harsh environment jackup rigs both of 

which are scheduled to be delivered during 2013. 

In  addition  to  the  2010  projects  listed  above,  in  January  2011  we  announced  we  would  construct  two 
additional newbuild drillships at Hyundai Heavy Industry (“HHI”). The new ultra-deepwater drillships, to be named 
at a later date, will be constructed on a fixed price basis with expected deliveries from the shipyard in the second and 
fourth quarters of 2013, respectively. We have a letter of intent for one of these units for a five and one-half year 
contract with a subsidiary of Shell at a dayrate of $410,000, plus a 15 percent performance bonus opportunity. We 
have also negotiated options for two additional jackups and two additional HHI drillships. 

Excluding the Frontier acquisition, capital expenditures totaled $1.4 billion during 2010. 

Acquisition of Frontier Holdings Limited 

On July 28, 2010, Noble-Swiss and Noble AM Merger Co., a Cayman Islands company and indirect wholly-
owned subsidiary of Noble-Swiss (“Merger Sub”), completed the acquisition of FDR Holdings Limited, a Cayman 
Islands company (“Frontier”). Under the terms of the  Agreement and Plan of Merger  with Frontier and certain of 
Frontier’s shareholders, Merger Sub merged with and into Frontier, with Frontier surviving as an indirect wholly-
owned subsidiary of Noble-Swiss and a wholly-owned subsidiary of Noble-Cayman. The Frontier acquisition was 
for  a  purchase  price  of  approximately  $1.7  billion  in  cash  plus  liabilities  assumed  and  strategically  expanded  and 
enhanced our global fleet by adding three dynamically positioned drillships (including two Bully-class joint venture-
owned  drillships  under  construction),  two  conventionally  moored  drillships,  including  one  that  is  Arctic-class,  a 
conventionally  moored  deepwater  semisubmersible  and  one  dynamically  positioned  FPSO  to  our  fleet.  Frontier’s 
results of operations were included in our results beginning July 28, 2010. We funded the cash consideration paid at 
closing of approximately $1.7 billion using proceeds from our July 2010 offering of senior notes and existing cash 
on hand. 

U.S. Gulf of Mexico Operations 

Subsequent to the April 20, 2010 fire and explosion on the Deepwater Horizon, a competitor’s drilling rig in 
the U.S. Gulf of Mexico, U.S. governmental authorities implemented a moratorium on and suspension of specified 
types of drilling activities in the U.S. Gulf of Mexico. 

On  October  12,  2010,  the  U.S.  government  lifted  the  moratorium  following  adoption  of  new  regulations 
including a drilling safety rule and a workplace safety rule, each of which imposed multiple obligations relating to 
offshore  drilling  operations.  These  obligations  relate  to,  among  other  things,  additional  certifications  and 
verifications  relating  to  compliance  with  applicable  regulations;  compatibility  of  blowout  preventers  with  drilling 
rigs and well design; third-party inspections and design review of blowout preventers; testing of casing installations; 
minimum requirements for personnel operating blowout preventers; and training in deepwater well control. 

In addition, the U.S. government has indicated that before any new deepwater drilling resumes, (i) operators 
must  demonstrate  that  containment  resources  are  available  promptly  in  the  event  of  a  deepwater  blowout,  (ii)  the 
chief  executive  officer  of  each  operator  seeking  to  perform  deepwater  drilling  must  certify  that  the  operator  has 
complied  with  all  applicable  regulations  and  (iii)  the  Bureau  of  Ocean  Energy  Management,  Regulation  and 
Enforcement  will  conduct  inspections  of  each  deepwater  drilling  operation  for  compliance  with  the  applicable 
regulations. 

30 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our existing U.S. Gulf of Mexico operations have been and will continue to be negatively impacted by the 
events  and  governmental  action  described  above.  As  of  December  31,  2010,  our  U.S.  Gulf  of  Mexico  operations 
included  eight  deepwater  drilling  units:  the  Noble  Amos  Runner,  Noble  Clyde  Boudreaux,  Noble  Danny  Adkins, 
Noble Jim Thompson, Noble Driller, Noble Paul Romano, Noble Lorris Bouzigard and Noble Jim Day. We estimate 
the negative impact to our revenues for the year ended December 31, 2010 to be approximately $450 million. We 
have  worked and continue to  work closely  with our customers  for drilling  services in the U.S. Gulf of Mexico to 
address the hardships imposed by the governmental actions described above. The discussion below briefly describes 
the current status of each of these drilling units. 

•  Noble Amos Runner. The Noble Amos Runner received its blow out preventer (“BOP”) certification and 
is currently operating in place of the Noble Lorris Bouzigard for LLOG Exploration, LLC (“LLOG”) at 
the full dayrate under the Noble Lorris Bouzigard contract. 

•  Noble Clyde Boudreaux. In late June 2010, we reached agreement with our customer, Noble Energy, Inc. 
(“Noble Energy”), relating to the Noble Clyde Boudreaux to place the drilling unit on standby for a daily 
rate  of  $145,000  per  day  from  June  15  through  December  12,  2010.  This  unit  has  received  its  BOP 
certification.  We  have  been  awarded  a  letter  of  intent  for  this  drilling  unit  by  a  subsidiary  of  Shell  for 
work in Brazil. We expect to mobilize the unit in the first quarter of 2011. 

•  Noble  Danny  Adkins.  This  unit  received  its  BOP  certification.  The  unit  currently  is  operating  under  a 
permit, however, we cannot guarantee that our customer Shell will be able to continue to secure required 
permits, at which point, it could return to the lower stand-by rate. 

•  Noble Jim Thompson. This unit is under contract with Shell and is receiving a reduced stand-by rate. This 

unit has received its BOP certification. 

•  Noble  Driller.  This  unit  is  under  contract  with  Shell  and  is  receiving  a  reduced  stand-by  rate  while 
undergoing a shipyard project. This unit is expected to receive its BOP certification in the second quarter 
of 2011. 

•  Noble Paul Romano. This unit is idle, having completed its drilling contract in June 2010. The unit has 

received its BOP certification and is being actively marketed to potential customers. 

•  Noble Lorris Bouzigard. Prior to being swapped with the Noble Amos Runner this unit was under contract 
with  LLOG.  Currently,  this  drilling  unit  is  cold  stacked,  but  is  being  actively  marketed  to  potential 
customers. 

•  Noble  Jim  Day.  Effective  December  31,  2010  Marathon  Oil  Company  (“Marathon”)  terminated  the 
drilling contract  for the  ultra-deepwater semisubmersible drilling rig  Noble Jim Day. Marathon’s  stated 
reason for the termination was that the rig had not been accepted by Marathon by the contracted deadline 
of  December  31,  2010.  We  believe  the  rig  was  ready  to  commence  operations  and  should  have  been 
accepted by Marathon. This rig has received its BOP certification. We intend to pursue our rights under 
the contract against Marathon. In February 2011, we were awarded a letter of intent for this drilling unit 
by a subsidiary of Shell for work in the U.S. Gulf of Mexico. 

It is still unclear when normal operations will resume, what the cost of additional safety measures will be and 

how additional regulations will impact our operations in the U.S. Gulf of Mexico. 

Consummation of Migration and Internal Restructuring 

On March 26, 2009, we completed a series of transactions that effectively changed the place of incorporation 
of our parent holding company from the Cayman Islands to Switzerland. As a result of these transactions, Noble-
Cayman,  our  former  publicly-traded  parent  company,  became  a  direct,  wholly-owned  subsidiary  of  Noble-Swiss, 
our  current  publicly-traded  parent  company.  Noble-Swiss’  principal  asset  is  all  of  the  shares  of  Noble-Cayman. 
Noble-Cayman  has  no  public  equity  outstanding  after  March  26,  2009.  The  consolidated  financial  statements  of 
Noble-Swiss  include  the  accounts  of  Noble-Cayman,  and  Noble-Swiss  conducts  substantially  all  of  its  business 
through  Noble-Cayman  and  its  subsidiaries.  In  connection  with  these  transactions,  we  relocated  our  principal 
executive offices, executive officers and selected personnel to Geneva, Switzerland. 

31 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contract Drilling Services Backlog 

We maintain a backlog (as defined below) of commitments for contract drilling services. The following table 
sets forth as of December 31, 2010 the amount of our contract drilling services backlog and the percent of available 
operating days committed for the periods indicated: 

Contract Drilling Services Backlog 
Semisubmersibles/Drillships (1) (5) 

  Total 

    2011 

Year Ending December 31, 
  2014   

  2012   

  2013   
(In millions) 

 2015-2023   

(6) (7) (8) (9)....................................   $  11,430  $  1,637 
707 
— 
Total (3) .................................................   $  12,693  $  2,344 

Jackups/Submersibles (2) ..................  
Other ..................................................  

1,263   
—   

$  1,760 
304 
— 
$  2,064 

$  1,642 
182 
— 
$  1,824 

$  1,707 
67 
— 
$  1,774 

$   

$   

4,684 
3 
— 
4,687 

Percent of Available Operating Days 

Committed (4) .....................................  

____________ 

53%   

31%   

25%   

19%   

5% 

(1)  Our  drilling  contracts  with  Petroleo  Brasileiro  S.A.  (“Petrobras”)  provide  an  opportunity  for  us  to  earn 
performance bonuses based on downtime experienced for our rigs operating offshore Brazil. With respect to our 
semisubmersibles operating offshore Brazil, we have included in our backlog an amount equal to 75 percent of 
potential performance bonuses for such  semisubmersibles,  which amount is based on and generally consistent 
with  our  historical  earnings  of  performance  bonuses  for  these  rigs.  With  respect  to  our  drillships  operating 
offshore  Brazil,  we  (a)  have  not  included  in  our  backlog  any  performance  bonuses  for  periods  prior  to  the 
commencement  of  certain  upgrade  projects  planned  for  2011  through  2012,  which  projects  are  designed  to 
enhance the reliability and operational performance of our drillships, and (b) have included in our backlog an 
amount equal to 75 percent of potential performance bonuses for periods after the estimated completion of such 
upgrade projects. Our backlog for semisubmersibles/drillships includes approximately $269 million attributable 
to these performance bonuses. 
The drilling contracts with Shell for the Noble Globetrotter I, Noble Globetrotter II, and Noble Phoenix, as well 
as  the  three-year  extension  for  the  Noble  Jim  Thompson,  provide  opportunities  for  us  to  earn  performance 
bonuses  based  on  key  performance  indicators  as  defined  by  Shell.  With  respect  to  these  contracts,  we  have 
included in our backlog an amount equal to 75 percent of the potential performance bonuses for these rigs. Our 
backlog for these rigs includes approximately $410 million attributable to these performance bonuses. 

(2)  Our drilling contracts with Pemex Exploracion y Produccion (“Pemex”) for certain jackups operating offshore in 
Mexico are subject to price review and adjustment of the rig dayrate. Presently, the contract for one jackup has a 
dayrate indexed to the world average of the highest dayrates published by ODS-Petrodata. After an initial firm 
dayrate  period,  the  dayrate  is  generally  adjusted  quarterly  based  on  formulas  calculated  from  the  index.  Our 
contract  drilling  services  backlog  has  been  calculated  using  the  December  31,  2010  index-based  dayrate  for 
periods subsequent to the firm dayrate period. 

(3)  Pemex has the ability to cancel its drilling contracts on 30 days or less notice without Pemex’s making an early 
termination payment. At December 31, 2010 we had six rigs contracted to Pemex in Mexico and our backlog 
includes approximately $147 million related to such contracts. Also, our drilling contracts generally provide the 
customer  an  early  termination  right  in  the  event  we  fail  to  meet  certain  performance  standards,  including 
downtime  thresholds.  While  we  do  not  currently  anticipate  any  cancellations  as  a  result  of  events  that  have 
occurred to date, clients may from time to time have the contractual right to do so. 

(4)  Percentages take into account additional capacity from the estimated dates of deployment of our newbuild rigs 

that are scheduled to commence operations during 2011 through 2013. 

(5)  It  is  not  possible  to  determine  the  impact  to  our  revenues  or  backlog  resulting  from  the  U.S.  government-
imposed restrictions, efforts by operators to cancel or modify drilling contracts, and other consequences of the 
actions by the U.S. government. At December 31, 2010, backlog related to our U.S. Gulf of Mexico deepwater 
rigs  totaled  $5.6  billion,  $471  million  of  which  represents  backlog  for  the  twelve-month  period  ending 
December 31, 2011.  

32 

 
 
 
 
  
  
 
 
  
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
We entered into an agreement  with Shell, effective June 27, 2010,  which provides that  Shell  may  suspend the 
contracts on three of our units operating in the U.S. Gulf of Mexico during any period of regulatory restriction by 
paying reduced suspension dayrates in lieu of the normal operating dayrates. The term of the initial contract is 
also extended by the suspension period. The impact of this agreement is to shift backlog among periods with an 
immaterial increase to total backlog because of the reduced suspension rates. 

(6)  The Noble Homer Ferrington is under contract with a subsidiary of ExxonMobil Corporation (“ExxonMobil”), 
who entered into an assignment agreement with BP for a two well farmout of the rig in Libya after successfully 
drilling  two  wells  with  the  rig  for  ExxonMobil.  In  August  2010,  BP  attempted  to  terminate  the  assignment 
agreement claiming that the rig  was  not in the required condition. ExxonMobil has informed us that  we  must 
look  to  BP  for payment  of  the  dayrate  during  the  assignment  period.  In  August  2010, we  initiated  arbitration 
proceedings under the drilling contract against both BP and ExxonMobil. We do not believe BP had the right to 
terminate the assignment agreement and believe the rig continues to be fully ready to operate under the drilling 
contract.  We  believe  we  are  owed  dayrate  by  either  or  both  of  these  customers.  The  operating  dayrate  was 
approximately  $538,000  per  day  for  the  work  in  Libya.  We  are  proceeding  with  the  arbitration  process  and 
intend to vigorously pursue these claims. 

(7)  Noble  and  a  subsidiary  of  Shell  are  involved  in  joint  venture  agreements  to  build,  operate,  and  own  both  the 
Noble Bully I and the Noble Bully II. Pursuant to these agreements, each party has an equal 50 percent share in 
both vessels. As of December 31, 2010, the combined amount of backlog for these rigs totals $2.4 billion, all of 
which is included in backlog. Noble’s net interest in the backlog for these rigs is $1.2 billion. 

(8)  As  described  in  “U.S.  Gulf  of  Mexico  Operations,”  effective  December  31,  2010,  Marathon  terminated  the 
drilling contract for the Noble Jim Day, which represented approximately $752 million in contract backlog. Such 
amounts have been excluded from our backlog as of December 31, 2010. 

(9)  As  described  in  “Executive  Overview,”  subsequent  to  December  31,  2010,  we  announced  an  MOU  with 
Petrobras whereby we would substitute the Noble Phoenix for the Noble Muravlenko and Shell agreed to release 
the Noble Phoenix from its contract. These transactions have not been reflected in backlog as of December 31, 
2010 and will reduce our prospective backlog by approximately $460 million. 

Our contract drilling services backlog reported above reflects estimated future revenues attributable to both 
signed drilling contracts and letters of intent that we expect to become firm. A letter of intent is generally subject to 
customary conditions, including the execution of a definitive drilling contract. It is possible that some customers that 
have entered into letters of intent will not enter into signed drilling contracts. We calculate backlog for any given 
unit and period by multiplying the full contractual operating dayrate for such unit by the number of days remaining 
in  the  period.  The  reported  contract  drilling  services  backlog  does  not  include  amounts  representing  revenues  for 
mobilization,  demobilization  and  contract  preparation,  which  are  not  expected  to  be  significant  to  our  contract 
drilling  services  revenues,  amounts  constituting  reimbursables  from  customers  or  amounts  attributable  to 
uncommitted option periods under drilling contracts or letters of intent. 

The  amount  of  actual  revenues  earned  and  the  actual  periods  during  which  revenues  are  earned  may  be 
different than the backlog amounts and backlog periods set forth in the table above due to various factors, including, 
but  not  limited  to,  shipyard  and  maintenance  projects,  unplanned  downtime,  weather  conditions  and  other  factors 
that result in applicable dayrates lower than the full contractual operating dayrate. In addition, amounts included in 
the backlog may change because drilling contracts may be varied or modified by mutual consent or customers may 
exercise  early  termination  rights  contained  in  some  of  our  drilling  contracts  or  decline  to  enter  into  a  drilling 
contract after executing a letter of intent. As a result, our backlog as of any particular date may not be indicative of 
our actual operating results for the periods for which the backlog is calculated. 

33 

 
 
 
 
 
 
 
 
 
Internal Investigation 

In 2007, we began, and voluntarily contacted the SEC and the U.S. Department of Justice (“DOJ”) to advise 
them of, an  internal investigation of the legality under the  United States Foreign  Corrupt Practices Act (“FCPA”) 
and local laws of certain reimbursement payments made by our Nigerian affiliate to our customs agents in Nigeria. 
In November 2010, we finalized settlements of this matter with each of the SEC and the DOJ. In order to resolve the 
DOJ investigation, we entered into a non-prosecution agreement with the DOJ, which provides for the payment of a 
fine of $2.6 million, as well as certain undertakings, including continued cooperation with the DOJ, compliance with 
the FCPA, certain  self-reporting and annual reporting obligations and certain restrictions on our public discussion 
regarding  the  agreement.  The  agreement  does  not  require  that  we  install  a  monitor  to  oversee  our  activities  and 
compliance with laws. In order to resolve the SEC investigation, we agreed to the entry of a civil judgment against 
us for violations of the FCPA. Pursuant to the agreed judgment, we agreed to disgorge profits of $4.3 million, pay 
prejudgment interest of $1.3 million and refrain from denying the allegations contained in the SEC’s petition, except 
in other litigation to which the SEC is not a party. We also agreed to an injunction restraining us from violating the 
anti-bribery, books and records, and internal controls provisions of the FCPA, and we waived a variety of litigation 
rights with respect to the conduct at issue. The agreed judgment does not require a monitor. Our ability to comply 
with  the  terms  of  the  settlements  is  dependent  on  the  success  of  our  ongoing  compliance  program,  including  our 
ability to continue to manage our agents and supervise, train and retain competent employees, and the efforts of our 
employees to comply with applicable law and our code of business conduct and ethics. 

In  January  2011,  the  Nigerian  Economic  and  Financial  Crimes  Commission  and  the  Nigerian  Attorney 
General Office initiated an investigation into these same activities. A subsidiary of Noble-Swiss resolved this matter 
through  the  execution  of  a  non-prosecution  agreement  dated  January  28,  2011.  Pursuant  to  this  agreement,  the 
subsidiary paid $2.5 million to resolve all charges and claims of the Nigerian government. Any additional sanctions 
we  may  incur  as  a  result  of  any  such  investigation  could  damage  our  reputation  and  result  in  substantial  fines, 
sanctions, civil and/or criminal penalties and curtailment of operations in certain jurisdictions and might adversely 
affect our business, results of operations or financial condition. Further, resolving any such investigation could be 
expensive and consume significant time and attention of our senior management. 

We  have  one  jackup  rig  in  Nigeria  which  is  operating  under  a  temporary  import  permit  which  expired  in 
November  2008  and  we  have  a  pending  application  to  renew  this  permit.  We  have  received  approval  from  the 
Nigerian Customs office that we will be allowed to obtain a new temporary import permit for this rig. We recently 
received  a  new  temporary  import  permit  for  another  rig  in  Nigeria  that  had  been  waiting  for  a  temporary  import 
permit  based  on  a  long-standing  application.  We  continue  to  seek  to  avoid  material  disruption  to  our  Nigerian 
operations; however, there can be no assurance that we will be able to obtain new permits or further extensions of 
permits necessary to continue the operation of our rigs in Nigeria. If we cannot obtain a new permit or an extension 
necessary to continue operations of any rig, we may need to cease operations under the drilling contract for such rig 
and  relocate  such  rig  from  Nigerian  waters.  We  cannot  predict  what  impact  these  events  may  have  on  any  such 
contract or our business in Nigeria, and  we could  face additional  fines and sanctions in  Nigeria. Furthermore,  we 
cannot predict what changes, if any, relating to temporary import permit policies and procedures may be established 
or implemented in Nigeria in the future, or how any such changes may impact our business there. 

RESULTS OF OPERATIONS 

2010 Compared to 2009  

General 

Net  income  attributable  to  Noble  Corporation  for  2010  was  $773  million,  or  $3.02  per  diluted  share,  on 
operating revenues of $2.8 billion, compared to net income for 2009 of $1.7 billion, or $6.42 per diluted share, on 
operating revenues of $3.6 billion. 

The  consolidated  financial  statements  of  Noble-Swiss  include  the  accounts  of  Noble-Cayman,  and  Noble-
Swiss conducts substantially all of its business through Noble-Cayman and its subsidiaries. As a result, the financial 
position and results of operations for Noble-Cayman, and the reasons for material changes in the amount of revenue 
and expense items between 2010 and 2009, would be the same as the information presented below regarding Noble-
Swiss in all  material respects, except operating income for Noble-Cayman for the  year ended December 31, 2010 
was $42  million higher than  operating income  for Noble-Swiss  for the  same period, primarily as a result of costs 
directly attributable to Noble-Swiss for stewardship related services. 

34 

 
 
 
 
 
 
 
 
 
 
Rig Utilization, Operating Days and Average Dayrates 

Operating revenues and operating costs and expenses for our contract drilling services segment are dependent 
on three primary metrics — rig utilization, operating days and dayrates. The following table sets forth the average 
rig utilization, operating days and average dayrates for our rig fleet for 2010 and 2009: 

  Average Rig 
  Utilization (1) 
  2010   

  2009   

Operating 
Days (2) 
  2010      2009     % Change  

Average 
Dayrates 

79%   
86%   
89%   
11%   

82%   12,376   12,719   
100%    3,837    3,673   
993   
418   

91%    1,392   
95   
51%   

  2010 

    2009 

   % Change  

-3%  $  96,935  $ 147,701   
  288,163    368,398   
4% 
  256,067    254,084   
40% 
  355,986    61,711   
-77% 

-34% 
-22% 
1% 
477% 

78%   

84%   17,700   17,803   

-1%  $ 152,292  $ 197,144   

-23% 

Jackups ..................  
Semisubmersibles...  
Drillships ...............  
FPSO/Submersibles (3)... 

Total ..................  

____________ 

(1)  Information  reflects  our  policy  of  reporting  on  the  basis  of  the  number  of  actively  marketed  rigs  in  our  fleet 

excluding newbuild rigs under construction. 

(2)  Information reflects the number of days that our rigs were operating under contract. 
(3)  Effective March 31, 2009, the Noble Fri Rodli, which had been cold stacked since October 2007, was removed 

from our rig fleet. 

Contract Drilling Services 

The following table sets forth the operating revenues and the operating costs and expenses for our contract 

drilling services segment for 2010 and 2009: 

2010 

2009 

Change 
$ 

  % 

Operating revenues: 

Contract drilling services .....................................................   $  2,695,493  $  3,509,755  $ 
Reimbursables (1) ................................................................  
Other ....................................................................................  

73,959   
2,332    

96,161   
1,302    
$  2,771,784  $  3,607,218  $ 

Operating costs and expenses: 

Contract drilling services .....................................................   $  1,177,800  $  1,006,764  $ 
Reimbursables (1) ................................................................  
Depreciation and amortization.............................................  
Selling, general and administrative......................................  
(Gain)/Loss on asset disposal/involuntary conversion, net..  

82,122   
398,572   
80,004   
31,053    
   1,853,579     1,598,515    

56,674   
528,011   
91,094   
—    

(814,262)   
(22,202)   
1,030 
(835,434)   

171,036 
(25,448)   
129,439 
11,090 
(31,053)   
255,064 

Operating income ..................................................................   $  918,205  $  2,008,703  $  (1,090,498)   
____________ 

-23% 
-23% 
  79% 
 -23% 

17% 
-31% 
32% 
14% 
  ** 
  16% 
 -54% 

(1)  We record reimbursements from customers for out-of-pocket expenses as revenues and the related direct costs as 
operating expenses. Changes in the amount of these reimbursables do not have a material effect on our financial 
position, results of operations or cash flows. 

**  Not a meaningful percentage.  

Operating  Revenues.  The  decrease  in  contract  drilling  services  revenue  for  2010  as  compared  to  the  prior 
year was primarily driven by reductions in both average dayrates and utilization. Lower dayrates decreased revenues 
approximately  $798  million,  while  fewer  operating  days  decreased  revenues  by  approximately  $16  million.  The 
reduction in utilization was partially offset by the acquisition of Frontier and the addition of newbuilds. 

35 

 
 
 
 
 
  
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
  
 
   
   
 
 
 
   
   
 
 
 
 
  
 
 
 
   
   
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
The  decrease  in  contract  drilling  services  revenue  related  primarily  to  our  jackups  and  semisubmersibles, 
which generated approximately $679 million and $248 million less revenue for the current year as compared to the 
prior year, respectively. The decrease in jackup revenue was from a 34 percent decline in dayrates primarily from 
the contractual re-pricing of rigs in the Middle East, the North Sea, and Mexico resulting from changes in market 
conditions  in  the  global  shallow  water  market.  Reductions  in  average  dayrates  by  22  percent  contributed  to  the 
decline  in  semisubmersible  revenue.  These  reductions  resulted  from  the  drilling  restrictions  in  the  U.S.  Gulf  of 
Mexico where lower standby rates replaced the standard operating dayrates for a majority of our customers, lower 
utilization from the termination of certain contracts and a dispute with a customer over the Noble Homer Ferrington 
contract. 

The decreases in revenue for the above rig classes were partially offset by higher revenues from our drillships 
and  other  rigs,  which  increased  $113  million  in  the  current  year  as  compared  to  the  prior  year.  The  increase  was 
primarily due to the addition of the drillships and FPSO added to the fleet as part of the Frontier acquisition of $143 
million, partially offset by a decrease in revenues from our drillships operating in Brazil. 

Operating  Costs  and  Expenses.  Contract  drilling  services  operating  costs  and  expenses  increased  $171 
million for the current year as compared to the prior year. Our newbuild rigs, the Noble Scott Marks, Noble Danny 
Adkins  and  Noble  Dave  Beard,  which  were  added  to  the  fleet  in  June  2009,  October  2009  and  March  2010, 
respectively,  added  approximately  $109  million  of  operating  costs  in  2010.  The  acquisition  of  the  Frontier  rigs 
added an additional $55 million of operating costs. Excluding the additional expenses related to these newbuild and 
Frontier  rigs,  our  contract  drilling  costs  increased  $7  million  in  2010  as  compared  to  2009.  This  change  was 
principally  due  to  acquisition  costs  of  $19  million  coupled  with  increases  in  safety  costs  of  $4  million,  partially 
offset by a decrease in maintenance expenses of $9 million and a decrease in transportation and other expenses of $7 
million. 

Depreciation  and  amortization  increased  $129  million  in  2010  over  2009  as  a  result  of  depreciation  on 
newbuilds placed into service, and additional depreciation related to other capital expenditures on our fleet since the 
beginning  of  2009.  Also,  the  acquisition  of  Frontier  added  approximately  $39  million  in  depreciation  during  the 
current year. 

Loss on asset disposal/involuntary conversion in 2009 primarily consists of a charge of $17 million for our 
jackup, the Noble David Tinsley, which experienced a “punch-through” while being positioned on location offshore 
Qatar.  The  $17  million  charge  includes  approximately  $9  million  for  the  write-off  of  the  damaged  legs  and  $8 
million for non-reimbursable expenses. Also during 2009, we recorded an impairment charge of $12 million for the 
Noble Fri Rodli as a result of a decision to evaluate disposition alternatives for this submersible drilling unit. 

Other 

The  following  table  sets  forth  the  operating  revenues  and  the  operating  costs  and  expenses  for  our  other 

services for 2010 and 2009 (in thousands): 

  2010 

  2009 

Change 

$ 

  % 

Operating revenues: 

Labor contract drilling services ...................................................  $  32,520 
2,872 
Reimbursables (1) ........................................................................ 
— 
Other ............................................................................................ 
$  35,392 

$  30,298 
3,040 
228 
$  33,566 

$  2,222 
(168) 
(228) 
$  1,826 

7% 
-6% 
   -100% 
5% 

Operating costs and expenses: 

Labor contract drilling services ...................................................  $  22,056 
Reimbursables (1) ........................................................................ 
2,740 
  11,818 
Depreciation and amortization..................................................... 
903 
Selling, general and administrative.............................................. 
— 
 (Gain)/Loss on asset disposal, net............................................... 
  37,517 

$  18,827 
2,913 
9,741 
258 
(214) 
  31,525 
Operating income ..........................................................................  $  (2,125)  $  2,041 
____________ 

$  3,229 
(173) 
2,077 
645 
214 
5,992 
$  (4,166) 

17% 
-6% 
21% 
  250% 
    ** 
    19% 
   -204% 

(1)  We  record  reimbursements  from  customers  for  out-of-pocket  expenses  as  operating  revenues  and  the  related 
direct  costs  as  operating  expenses.  Changes  in  the  amount  of  these  reimbursables  generally  do  not  have  a 
material effect on our financial position, results of operations or cash flows. 

**  Not a meaningful percentage.  

36 

 
 
 
 
 
 
 
 
 
  
  
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating Revenues and Costs and Expenses. Revenues and expenses associated with our Canadian labor 
contract drilling services increased in the current year primarily for fluctuations in foreign currency exchange rates 
coupled  with  increased  labor  and  contract  drilling  services  costs.  The  increase  in  depreciation  results  from  fixed 
asset additions in conjunction with the relocation of our corporate offices to Switzerland. 

Other Income and Expenses 

Selling, general and administrative expenses. Overall selling, general and administrative expenses increased 
$12 million in 2010 from 2009 primarily as a result of the FCPA settlement of $8 million, along with increases in 
employee related costs of $2 million, increases in consulting fees of $2 million and Swiss VAT taxes of $2 million, 
partially offset by the worldwide asset consolidation project and migration costs and other expenses in 2009 of $2 
million. 

Interest Expense, net of amount capitalized. Interest expense, net of amount capitalized increased $8 million 

primarily for the addition of $1.25 billion of debt issued in July 2010 to partially fund the Frontier acquisition. 

Income  Tax  Provision.  Our  income  tax  provision  decreased  $194  million  in  2010  compared  to  2009 
primarily due to a reduction in pre-tax earnings combined with a lower effective tax rate. Pre-tax earnings decreased 
approximately  55  percent  in  2010  compared  to  2009  resulting  in  a  reduction  of  approximately  $184  million  in 
income tax expense. The lower effective tax rate, which was 15.6 percent in 2010 compared to 16.7 percent in 2009, 
reduced income tax expense by approximately $10 million. 

2009 Compared to 2008  

General 

Net  income  for  2009  was  $1.7  billion,  or  $6.42  per  diluted  share,  on  operating  revenues  of  $3.6  billion, 

compared to net income for 2008 of $1.6 billion, or $5.81 per diluted share, on operating revenues of $3.4 billion. 

Rig Utilization, Operating Days and Average Dayrates 

Operating revenues and operating costs and expenses for our contract drilling services segment are dependent 
on three primary metrics — rig utilization, operating days and dayrates. The following table sets forth the average 
rig utilization, operating days and average dayrates for our rig fleet for 2009 and 2008: 

  Average Rig 
  Utilization (1) 
  2009   

  2008   

Operating 
Days (2) 
  2008   

 % Change  

  2009   

Average 
Dayrates 

  2009 

    2008 

   % Change  

82% 

98% 

92%    12,719    13,879   

-8%  $ 147,701  $ 148,532   

96%    2,578    2,466   

5%    417,177    327,558   

100% 
91% 
51% 
84%   

100%    1,095    1,098   
732   
993   
67%   
729   
418   
66%   
90%    17,803    18,904   

0%    253,557    220,475   
36%    254,084    201,819   
54,106   
61,711   
-43%   
-6%  $ 197,143  $ 174,506   

-1% 

27% 

15% 
26% 
14% 
13% 

Jackups .................................  
Semisubmersibles  
  > 6000’ (3)............................... 
Semisubmersibles  
  < 6000’ (4)............................... 
Drillships ..............................  
Submersibles (5) ...................  
Total.................................  

____________ 

(1)  Information  reflects  our  policy  of  reporting  on  the  basis  of  the  number  of  actively  marketed  rigs  in  our  fleet 

excluding newbuild rigs under construction. 

(2)  Information reflects the number of days that our rigs were operating under contract. 
(3)  These units have water depth ratings of 6,000 feet or greater.  

(4)  These units have water depth ratings of less than 6,000 feet.  
(5)  Effective March 31, 2009, the Noble Fri Rodli, which had been cold stacked since October 2007, was removed 

from our rig fleet. 

37 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contract Drilling Services 

The following table sets forth the operating revenues and the operating costs and expenses for our contract 

drilling services segment for 2009 and 2008: 

2009 

2008 

Change 
$ 

  % 

Operating revenues: 

Contract drilling services......................................................   $  3,509,755  $  3,298,850  $  210,905 
20,062 
Reimbursables (1).................................................................  
27 
Other.....................................................................................  
$  3,607,218  $  3,376,224  $  230,994 

96,161 
1,302 

76,099 
1,275 

Operating costs and expenses: 

Contract drilling services......................................................   $  1,006,764  $  1,011,882  $ 
Reimbursables (1).................................................................  
Depreciation and amortization..............................................  
Selling, general and administrative ......................................  
(Gain)/Loss on asset disposal/involuntary conversion, net .......  

(5,118)   
16,871 
49,124 
7,623 
21,053 
89,553 
Operating income ...................................................................   $  2,008,703  $  1,867,262  $  141,441 
____________ 

65,251 
349,448 
72,381 
10,000 
   1,508,962 

82,122 
398,572 
80,004 
31,053 
   1,598,515 

6% 
26% 
2% 
7% 

-1% 
26% 
14% 
11% 
** 
6% 
8% 

(1)  We record reimbursements from customers for out-of-pocket expenses as revenues and the related direct costs as 
operating expenses. Changes in the amount of these reimbursables do not have a material effect on our financial 
position, results of operations or cash flows. 

**  Not a meaningful percentage.  

Operating  Revenues.  Contract  drilling  services  revenue  increases  for  2009  as  compared  to  2008  were 
primarily driven by increases in average dayrates. Average dayrates increased revenues approximately $428 million 
for 2009, while fewer operating days reduced revenues approximately $217 million. 

Average dayrates increased 13 percent in 2009 as compared to 2008. Except for our jackup rigs, which were 
impacted by the weakening demand in the shallow waters worldwide, higher average dayrates were received across 
all  other  rig  categories  as  scheduled  contractual  increases  for  deepwater  rigs,  coupled  with  the  completion  of 
additional deepwater rigs, drove average dayrates higher in those classes. 

The decrease in operating days in 2009 as compared 2008 was primarily due to downtime of certain rigs in 
2009. Unpaid shipyard days increased 498 days in 2009 as compared to 2008, as we had 21 rigs spend time in the 
shipyard during 2009. We had only 12 rigs with unpaid shipyard days in 2008. Additionally, stacked days increased 
850  days  as  the  Noble  Al  White,  Noble  Byron  Welliver,  Noble  Dick  Favor,  Noble  Don  Walker,  Noble  Fri  Rodli, 
Noble Joe Beall, Noble Joe Alford, Noble Lester Pettus, Noble Lloyd Noble and Noble Tommy Craighead each were 
stacked for certain periods during 2009. In 2008, five rigs, the Noble Carl Norberg, Noble Don Walker, Noble Fri 
Rodli,  Noble  Joe  Alford,  and  the  Noble  Roy  Butler,  spent  a  significant  number  of  days  stacked.  The  decrease  in 
operating  days  in  2009  was  partially  offset  by  a  576  day  increase  in  available  days  for  the  enhanced  premium 
jackups Noble Hans Deul and Noble Scott Marks, which were placed into service in November 2008 and June 2009, 
respectively, and the addition of the semisubmersible Noble Danny Adkins, which began operating under contract in 
October 2009. We also had 275 less available days in 2009 as compared to 2008 due to the Noble Fri Rodli being 
removed from our rig fleet effective March 31, 2009. Additionally, 2009 had one less available operating day than 
2008 due to the leap year, which reduced available days in 2009 by 54 days. 

38 

 
 
 
 
  
  
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
  
 
 
  
  
 
 
 
 
 
 
Operating Costs and Expenses. Contract drilling services operating costs and expenses decreased $5 million 
in 2009 as compared to 2008. Our newbuild rigs, the Noble Hans Deul, Noble Scott Marks, and the Noble Danny 
Adkins,  which  were  placed  into  service  in  November  2008,  June  2009,  and  October  2009,  respectively,  added 
approximately  $34  million  of  operating  costs  in  2009.  Excluding  the  additional  expenses  related  to  our  newbuild 
rigs, our contract drilling costs decreased $39 million in 2009 versus 2008. This change was primarily driven by a 
$42 million decrease in local labor costs due to the increased number of rigs stacked during 2009 and an $18 million 
decrease  in  insurance  costs  from  our  insurance  program  under  which  we  are  predominately  self-insured.  These 
decreases were partially offset by a $9 million increase in miscellaneous transportation and fuel costs, a $9 million 
increase in mobilization costs and a $3 million increase in other operating cost and expenses. 

Depreciation  and  amortization  increased  $49  million  in  2009  over  2008  due  to  depreciation  on  newbuilds 
placed into service, and additional depreciation related to other capital expenditures on our fleet since the beginning 
of 2008. Since the beginning of 2008, we have spent $2.6 billion on contract drilling capital expenditures. 

Loss on asset disposal/involuntary conversion in 2009 primarily consists of a charge of $17 million for our 
jackup, the Noble David Tinsley, which experienced a “punch-through” while being positioned on location offshore 
Qatar.  The  $17  million  charge  includes  approximately  $9  million  for  the  write-off  of  the  damaged  legs  and  $8 
million for non-reimbursable expenses. Also during 2009, we recorded an impairment charge of $12 million for the 
Noble Fri Rodli as a result of a decision to evaluate disposition alternatives for this submersible drilling unit. 

Other 

The  following  table  sets  forth  the  operating  revenues  and  the  operating  costs  and  expenses  for  our  other 

services for 2009 and 2008 (in thousands): 

  2009 

  2008 

Change 

$ 

  % 

Operating revenues: 

Labor contract drilling services ................................................   $  30,298  $  55,078  $  (24,780) 
(11,710) 
Reimbursables (1).....................................................................  
(221) 
Other.........................................................................................  
$  33,566  $  70,277  $  (36,711) 

14,750 
449 

3,040 
228 

Operating costs and expenses: 

Labor contract drilling services ................................................   $  18,827  $  42,573  $  (23,746) 
(11,163) 
Reimbursables (1).....................................................................  
2,531 
Depreciation and amortization..................................................  
(1,504) 
Selling, general and administrative ..........................................  
36,271 
(Gain)/Loss on asset disposal, net ............................................  
2,389 
Operating income .......................................................................   $  2,041  $  41,141  $  (39,100) 
____________ 

2,913 
9,741 
258 
(214) 
  31,525 

14,076 
7,210 
1,762 
(36,485)    
29,136 

-45% 
-79% 
-49% 
-52% 

-56% 
-79% 
35% 
-85% 
** 
8% 
-95% 

(1)  We record reimbursements from customers for out-of-pocket expenses as revenues and the related direct cost as 
operating expenses. Changes in the amount of these reimbursables do not have a material effect on our financial 
position, results of operations or cash  flows. The reduction in reimbursables for 2009 as compared to 2008 is 
due to the sale of our North Sea labor contract drilling services business in 2008. 

**  Not a meaningful percentage.  

Operating Revenues. Our labor contract drilling services revenues decreased primarily due to the sale of our 
North Sea labor contract drilling services business in April 2008. Additionally, during the second quarter of 2008, 
we returned the jackup Noble Kolskaya,  which  we had operated under a bareboat charter, to its owner.  Revenues 
during  2008  related  to  our  North  Sea  labor  contract  drilling  services  business  and  the  Noble  Kolskaya  were  $22 
million in 2008. The remaining variance is due to currency exchange fluctuations and decreases related to revenue 
from the platform that we operate in Canada. 

Operating  Costs  and  Expenses.  Labor  contract  drilling  services  costs  and  expenses  decreased  $24  million 
due to the sale of our North Sea labor contract drilling services business and the return of the Noble Kolskaya to its 
owner in 2008. Expenses during 2008 related to our North Sea labor contract drilling services business and Noble 
Kolskaya  were  $19  million.  Operating  costs  associated  with  our  Canadian  labor  contracts  in  2009  decreased  $5 
million  from 2008 primarily  as a result of decreases in operations  under the  Hibernia contract and  fluctuations in 
foreign currency exchange rates. 

39 

 
 
 
 
 
 
 
  
  
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
Other Income and Expenses 

Selling, general and administrative expenses. Overall selling, general and administrative expenses increased 
$6 million in 2009 from 2008 primarily due to $7 million in costs related to our re-domestication from the Cayman 
Islands to Switzerland, a $6 million increase in salaries and employment related costs, $4 million in charges related 
to  our  worldwide  internal  restructuring,  and  a  $3  million  increase  due  to  our  Restoration  Plan  mark-to-market 
adjustment, partially offset by a $12 million decrease in costs incurred in the internal investigation of our Nigerian 
operations, and a $2 million decrease in other selling general and administrative expenses. 

Interest  Expense,  net  of  amount  capitalized.  Interest  expense,  net  of  amount  capitalized  decreased  $3 
million  primarily  due  to  repayments  of  debt  not  subject  to  interest  capitalization  coupled  with  higher  capital 
expenditures, and capitalized interest, in 2009 as compared to 2008. Capitalized interest was $55 million for 2009 
versus $48 million for 2008. 

Income Tax Provision. Our income tax provision decreased $14 million primarily due to a lower effective 
tax rate in 2009 compared to 2008. The lower effective tax rate of 16.7 percent in 2009 compared to 18.4 percent in 
2008  decreased  income  tax  expense  by  approximately  $34  million.  The  lower  effective  tax  rate  in  2009  resulted 
primarily  from  the  worldwide  internal  restructuring  that  took  place  in  October  2009  and  from  higher  pre-tax 
earnings  of  non-U.S.  owned  assets,  which  generally  have  a  lower  statutory  tax  rate.  This  decrease  was  partially 
offset by increased pre-tax earnings of approximately $103 million. 

LIQUIDITY AND CAPITAL RESOURCES 

Overview 

Our principal capital resource in 2010 was net cash from operating activities of $1.7 billion, which compared 
to $2.1 billion and $1.9 billion in 2009 and 2008, respectively. The decrease in net cash from operating activities in 
2010  compared  to  2009  was  primarily  attributable  to  lower  operating  revenues  partially  offset  by  a  decrease  in 
accounts  receivable.  At  December  31,  2010,  we  had  cash  and  cash  equivalents  of  $338  million  and  $560  million 
available under our bank credit facility. Total debt as a percentage of total debt plus total equity was 27.5 percent 
and 10.0 percent at December 31, 2010 and 2009, respectively. 

As a result of the cash generated by our operations, our cash on hand, the availability under our bank credit 
facilities  and  the  bond  offering  proceeds  discussed  below,  we  believe  our  liquidity  and  financial  condition  are 
sufficient to meet all of our reasonably anticipated cash flow needs for 2011 including: 

•  normal recurring operating expenses;  

•  capital expenditures, including expenditures for newbuilds and upgrades; 

• 

repurchase of shares;  

•  payments  of  return  of  capital  in  the  form  of  a  reduction  of  par  value  of  our  shares  (in-lieu  of 

dividends); and 

•  contributions to our pension plans.  

Capital Expenditures 

Our primary liquidity requirement in 2011 will be for capital expenditures. Excluding the fair value of assets 
acquired as part of the Frontier acquisition, we had total capital expenditures of $1.4 billion, $1.4 billion and $1.2 
billion for 2010, 2009 and 2008, respectively. 

40 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
At December 31, 2010, we had six rigs under construction, and capital expenditures for new construction in 

2010 totaled $653 million. Capital expenditures for newbuild rigs consisted of the following (in millions): 

Project 
Noble Globetrotter II ......................................................................................................................  $ 
Noble Globetrotter I ....................................................................................................................... 
Noble Jim Day ................................................................................................................................ 
Noble Bully II ................................................................................................................................. 
Newbuild Jackup #1 ....................................................................................................................... 
Newbuild Jackup #2 ....................................................................................................................... 
Noble Bully I................................................................................................................................... 
Other ............................................................................................................................................... 
Total................................................................................................................................................  $ 

174.9 
134.6 
115.2 
58.0 
40.0 
40.0 
32.1 
58.5 
653.3 

  Expenditures 
in 2010 

Our total capital expenditures budget for 2011 is approximately $2.1 billion. At December 31, 2010, we had 
entered into certain commitments, including shipyard and purchase commitments for approximately $1.5 billion, of 
which we expect to spend approximately $955 million in 2011. Subsequent to December 31, 2010, we entered into 
shipyard commitments of approximately $1.0 billion in connection with the signing of construction contracts for two 
additional newbuild drillships, and canceled shipyard contracts totaling $77 million in connection with the decision 
not  to  proceed  with  the  reliability  upgrade  on  the  Noble  Muravlenko.  We  expect  to  spend  approximately  $300 
million  on  the  two  additional  newbuild  drillships  in  2011.  Our  remaining  2011  capital  expenditure  budget  will 
generally be spent at our discretion. We may accelerate, delay or cancel certain capital projects, as needed. 

From  time  to  time  we  consider  possible  projects  that  would  require  capital  expenditures  or  other  cash 
expenditures that are not included in our capital budget, and such unbudgeted capital or cash expenditures could be 
significant. In addition, we will continue to evaluate acquisitions of drilling units from time to time. Other factors 
that  could  cause  actual  capital  expenditures  to  materially  exceed  planned  capital  expenditures  include  delays  and 
cost overruns in shipyards (including costs attributable to labor shortages), shortages of equipment, latent damage or 
deterioration to hull, equipment and machinery in excess of engineering estimates and assumptions, and changes in 
design criteria or specifications during repair or construction. 

Share Repurchases, Distributions of Capital and Dividends 

Our  Board  of  Directors  and  shareholders  have  authorized  and  adopted  a  share  repurchase  program.  At 
December  31,  2010,  6.8  million  shares  remained  available  under  this  authorization.  Future  repurchases  will  be 
subject  to  the  requirements  of  Swiss  law,  including  the  requirement  that  we  and  our  subsidiaries  may  only 
repurchase shares if and to the extent that sufficient freely distributable reserves are available. Also, the aggregate 
par  value  of  all  registered  shares  held  by  us  and  our  subsidiaries,  including  treasury  shares,  may  not  exceed  10 
percent of our registered share capital without shareholder approval. Our existing share repurchase program received 
the required shareholder approval prior to completion of our 2009 Swiss  migration transaction. Share repurchases 
for each of the three years ended December 31, 2010 were as follows: 

Year Ended 
December 31, 
2010 ................................................................................  
2009 ................................................................................  
2008 ................................................................................  

  Total Number 
of Shares 
Purchased 

  Total Cost 
  (in thousands)   

  Average 
  Price Paid 
  per Share   
36.14 
34.10 
41.62 

230,936  $   
186,506 
331,514 

6,390,488(1)  $ 
5,470,000(1)   
7,965,109 

(1)  Repurchases made subsequent to March 26, 2009, which totaled 10.1 million shares, are being held as treasury 

shares at December 31, 2010 

Our most recent quarterly payment to shareholders, in the form of a capital reduction, which was declared on 
February 4, 2011 and is to be paid on February 24, 2011 to holders of record on February 14, 2011, was 0.13 CHF 
per share, or an aggregate of approximately $35 million. The declaration and payment of dividends in the future by 
Noble-Swiss  and  the  making  of  distributions  of  capital,  including  returns  of  capital  in  the  form  of  par  value 
reductions,  require  authorization  of  the  shareholders  of  Noble-Swiss.  The  amount  of  such  dividends,  distributions 
and  returns  of  capital  will  depend  on  our  results  of  operations,  financial  condition,  cash  requirements,  future 
business  prospects,  contractual  restrictions  and  other  factors  deemed  relevant  by  our  Board  of  Directors  and 
shareholders. 

41 

 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
 
Recently,  our  Board  of  Directors  approved,  subject  to  shareholder  authorization  at  our  upcoming  annual 
general meeting scheduled for April 29, 2011, the payment of a regular return of capital through a reduction of the 
par value of our shares in a total amount equal to 0.52 CHF per share to be paid in four equal installments scheduled 
for August 2011, November 2011, February 2012 and May 2012. The payments will be made in U.S. Dollars based 
on the CHF/USD exchange rate available approximately two business days prior to the payment date. Although the 
amount of the return of capital, expressed in Swiss francs, is fixed, the amount of the payment in U.S. Dollars will 
fluctuate based on the exchange rate. The exchange rate as published by  the  Swiss National Bank on February 4, 
2011  was 0.9463 CHF/1.0 USD. If approved by our shareholders, these returns of capital  will require  us to  make 
total cash payments of approximately $140 million in 2011 (based on the exchange rate on February 4, 2011). 

Contributions to Pension Plans 

In  August  2006,  the  Pension  Protection  Act  of  2006  (“PPA”)  was  signed  into  law  in  the  U.S.  The  PPA 
requires that pension plans fund towards a target of at least 100 percent with a transition through 2011 and increases 
the amount we are allowed to contribute to our U.S. pension plans in the near term. During 2010, 2009 and 2008 we 
made  contributions  to  our  non-U.S.  and  U.S.  pension  plans  totaling  $16  million,  $18  million  and  $21  million, 
respectively. Due to improving market conditions, we expect the minimum aggregate contributions to our non-U.S. 
and U.S. plans in 2011, subject to applicable law, to be $6 million. We continue to  monitor and evaluate funding 
options based upon market conditions and may increase contributions at our discretion. 

Credit Facilities and Long-Term Debt 

Noble Credit Facilities and Long-Term Debt 

We have a $600 million unsecured bank credit facility (the “Credit Facility”). The Credit Facility contains 
various covenants, including a debt to total tangible capitalization covenant that limits this ratio (as defined in the 
Credit Facility) to 0.60. As of December 31, 2010, our ratio of debt to total tangible capitalization as defined by the 
agreement was 0.22. 

The  Credit  Facility  provides  us  with  the  ability  to  issue  up  to  $150  million  in  letters  of  credit.  While  the 
issuance of letters of credit does not increase our borrowings outstanding, it does reduce the amount available. At 
December 31, 2010, we had $40 million in borrowings outstanding and no letters of credit issued under the Credit 
Facility. We believe that we maintain good relationships with our lenders under the Credit Facility, and we believe 
that  our  lenders  have  the  liquidity  and  capability  to  perform  should  the  need  arise  for  us  to  draw  on  the  Credit 
Facility. 

The indentures governing our outstanding senior unsecured notes contain covenants that place restrictions on 
certain  merger  and  consolidation  transactions,  unless  we  are  the  surviving  entity  or  the  other  party  assumes  the 
obligations under the indenture, and on the ability to sell or transfer all or substantially all of our assets. In addition, 
there are restrictions on incurring or assuming certain liens and sale and lease-back transactions. At December 31, 
2010, we were in compliance or received a waiver on all our debt covenants. We continually monitor compliance 
with the covenants under our notes and, based on our expectations for 2011, expect to remain in compliance during 
the year. 

At December 31, 2010, we had letters of credit of $126 million and performance and tax assessment bonds 
totaling $350 million supported by surety bonds outstanding. Of the letters of credit outstanding, $75 million were 
issued  to  support  bank  bonds  in  connection  with  our  drilling  units  in  Nigeria.  Additionally,  certain  of  our 
subsidiaries issue, from time to time, guarantees to the temporary import status of rigs or equipment imported into 
certain  countries  in  which  we  operate.  These  guarantees  are  issued  in  lieu  of  payment  of  custom,  value  added  or 
similar taxes in those countries. 

In  February  2011,  we  entered  into  an  additional  revolving  credit  facility  with  an  initial  capacity  of  $300 
million. The facility will be syndicated to a broader bank group and, subject to certain conditions, have a targeted 
capacity of $600 million. The facility matures in 2015 and provides us with the ability to issue up to $150 million in 
letters of credit. The covenants and events of default under the additional revolving credit facility are substantially 
similar to the Credit Facility, which remains in place. The new facility is guaranteed by our indirect wholly-owned 
subsidiaries, Noble Holding International Limited (“NHIL”) and Noble Drilling Corporation. 

42 

 
 
 
 
 
 
 
 
 
 
 
 
Our total debt was $2.8 billion at December 31, 2010 as compared to $751 million at December 31, 2009. 
The  increase  in  debt  is  due  to  the  debt  issuances  of  $1.25  billion  aggregate  principal  amount  of  senior  notes 
discussed  below,  the  assumption  of  $691  million  of  joint  venture  debt  related  to  the  Frontier  acquisition  and  $36 
million  in  joint  venture  partner  debt.  For  additional  information  on  our  long-term  debt,  see  Note  7  to  our 
Consolidated Financial Statements. 

On July 26, 2010, we issued through NHIL, $1.25 billion aggregate principal amount of senior notes in three 
separate tranches, comprising $350 million of 3.45% Senior Notes due 2015, $500 million of 4.90% Senior Notes 
due 2020, and $400 million of 6.20% Senior Notes due 2040. Proceeds, net of discount and issuance costs, totaled 
$1.24  billion  and  were  used  to  finance  a  portion  of  the  cash  consideration  for  the  Frontier  acquisition.  Noble-
Cayman fully and unconditionally  guaranteed the  notes on a senior unsecured basis. Interest on all three series of 
these  senior  notes  is  payable  semi-annually,  in  arrears,  on  February  1  and  August  1  of  each  year,  beginning  on 
February 1, 2011. 

In February 2011, NHIL completed a debt offering of $1.1 billion aggregate principal amount of senior notes 
in three separate tranches, with $300 million of 3.05% Senior Notes due 2016, $400 million of 4.625% Senior Notes 
due 2021, and $400 million of 6.05% Senior Notes due 2041. The weighted average coupon of all three tranches is 
4.71%.  A  portion  of  the  net  proceeds  of  approximately  $1.09  billion,  after  expenses,  was  used  to  repay  the 
outstanding balance on our revolving credit facility and to repay our portion of outstanding debt under the Bully 1 
and  Bully  2  credit  facilities.  We  expect  to  use  the  remaining  proceeds  for  general  corporate  purposes,  including 
financing a portion of our 2011 capital program. 

Joint Venture Credit Facilities and Long-Term Debt 

As part of the Frontier acquisition, we assumed secured non-recourse debt related to the Bully 1 and Bully 2 
joint ventures. In February 2011, the outstanding balances of the Bully 1 and Bully 2 credit facilities, which totaled 
$691  million,  were  repaid  in  full  and  the  credit  facilities  terminated  using  a  portion  of  the  proceeds  from  our 
February 2011 debt offering and equity contributions from our joint venture partner. In addition, the related interest 
rate swaps  were settled and terminated concurrent  with the repayment and termination of the credit facilities. The 
Bully 1 and Bully 2 credit facilities are discussed further below. 

The Bully 1 secured non-recourse credit facility consisted of a $375 million senior term loan facility, a $40 
million senior revolving loan facility and a $50 million junior term loan facility. As of December 31, 2010, loans in 
an aggregate principal amount of $370 million were outstanding under the senior term loan facility. The senior term 
loan facility provided for floating interest rates that were fixed for one-, three- or six-month periods at LIBOR plus 
2.5% prior to delivery and acceptance of the Noble Bully I drillship. As noted in Note 12- “Derivative Instruments 
and Hedging Activities”, the joint venture maintained interest rate swaps, with a notional amount of $278 million, to 
satisfy bank covenants and to hedge the impact of interest rate changes on interest paid. The Bully 1 credit facility 
was  secured  by  assignments  of  the  major  contracts  for  the  construction  of  the  Noble  Bully  I  drillship  and  its 
equipment, the drilling contract for the drillship, and various other rights. In connection with the termination of the 
credit facility, the security interest and related collateral has been released. 

The Bully 2 secured non-recourse credit facility consisted of a $435 million senior term loan facility, a $10 
million senior revolving loan facility and a $50 million cost overrun term loan facility. As of December 31, 2010, 
loans  in  an  aggregate  principal  amount  of  $321  million  were  outstanding  under  the  senior  term  loan  facility.  The 
senior  term  loan  facility  provided  for  floating  interest  rates  that  were  fixed  for  three  months  or  such  other  period 
selected by the borrower and agreed by the agent (but not to exceed three months), at LIBOR plus 2.5% prior to the 
occurrence  of  the  delivery  date  of  the  hull  and  thereafter  at  LIBOR  plus  2.3%,  until  contract  commencement.  As 
noted  in  Note  12-  “Derivative  Instruments  and  Hedging  Activities”,  the  joint  venture  maintained  an  interest  rate 
swap,  with  a  notional  amount  of  $326  million,  to  satisfy  bank  covenants  and  to  hedge  the  impact  of  interest  rate 
changes  on  interest  paid.  The  Bully  2  credit  facility  was  secured  by  assignments  of  the  major  contracts  for  the 
construction of the Noble Bully II drillship and its equipment, the drilling contract for the drillship, and various other 
rights. In connection with the termination of the credit facility, the security interest and related collateral has been 
released. 

43 

 
 
 
 
 
 
 
 
 
 
Certain  amendments  to  the  underlying  drilling  contracts  and  the  revised  vessel  delivery  impact  to  loan 
amortization schedules required consent from lenders to both Bully joint ventures. On the Bully 1 credit facility we 
obtained  a  waiver  regarding  certain  covenants  related  to  the  completion  date  of  the  Noble  Bully  I  drillship.  The 
waiver was set to expire on February 28, 2011. 

In September 2010, the Bully joint ventures issued  notes to the joint venture partners totaling $70  million. 
The interest rate on these notes is 10%, payable semi-annually in arrears and in kind on June 30 and December 31 
commencing in December 2010. The interest payable due in 2010 was rolled into the principal loan balance of the 
notes.  The  purpose  of  these  notes  is  to  provide  additional  liquidity  to  these  joint  ventures  in  connection  with  the 
shipyard construction of the Bully vessels. Our portion of the joint venture partner notes, which totaled $36 million 
at  December  31,  2010,  has  been  eliminated  in  our  Consolidated  Balance  Sheets.  The  non-eliminated  portions  of 
these joint venture partner notes totaled $19 million for Bully 1 and $17 million for Bully 2 at December 31, 2010 
and are due in 2016 and 2018, respectively. 

Summary of Contractual Cash Obligations and Commitments 

The following table summarizes our contractual cash obligations and commitments at December 31, 2010 (in 

thousands): 

Payments Due by Period 

  Total 

2011 

2012 

2013 

2014 

2015 

 Thereafter   

  Other   

Contractual Cash Obligations 
— 
Long-term debt obligations (1)..........  $  2,766,697  $ 
— 
Interest payments .............................. 
— 
Operating leases ................................ 
— 
Pension plan contributions ................ 
— 
Purchase commitments (2) ................ 
Tax reserves (3)................................. 
  144,537 
Total contractual cash obligations .....  $  5,961,407  $  1,200,006  $  664,999  $  727,852  $  488,132  $  574,371  $  2,161,510  $ 144,537 

80,213  $  113,457  $  456,405  $  369,543  $  472,232  $  1,274,847  $ 

  1,437,398 
36,964 
97,364 
  1,478,447 
144,537 

  131,122   
4,733   
6,715   
  128,877   
—   

  146,302 
4,993 
5,895 
  394,352 
— 

151,502 
6,844 
6,229 
955,218 
— 

810,893 
12,699 
63,071 
— 
— 

106,667 
4,658 
7,264 
— 
— 

90,912 
3,037 
8,190 
— 
— 

(1)  Includes approximately $691 million in Bully debt which was paid off in February 2011. 
(2)  Purchase commitments consist of obligations outstanding to external vendors primarily related to future capital 

purchases. 

(3)  Tax reserves are included in “Other” due to the difficulty in making reasonably reliable estimates of the timing 
of cash settlements to taxing authorities. See Note 10 to our accompanying consolidated financial statements. 

At December 31, 2010, we had other commitments that we are contractually obligated to fulfill with cash if 
the  obligations  are  called.  These  obligations  include  letters  of  credit  and  surety  bonds  that  guarantee  our 
performance as it relates to our drilling contracts, tax and other obligations in various jurisdictions. These letters of 
credit and surety bond obligations are not normally called as we typically comply with the underlying performance 
requirement. 

The following table summarizes our other commercial commitments at December 31, 2010 (in thousands): 

Amount of Commitment Expiration Per Period 

  Total      2011 

    2012 

    2013 

    2014   

  2015 

  Thereafter  

Contractual Cash Obligations 
Letters of Credit..............................   $ 126,486  $  89,798  $   28,588  $   —  $  8,100  $   —  $  
Surety bonds ...................................  
Total commercial commitments .....   $ 476,754  $ 418,962  $   49,692  $   —  $  8,100  $   —  $  

   350,268     329,164      21,104   

  —   

  —   

  — 

— 
— 
— 

44 

 
 
 
 
 
 
 
  
 
 
  
  
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
  
  
 
 
  
 
   
   
   
   
 
 
 
 
 
 
CRITICAL ACCOUNTING POLICIES AND ESTIMATES 

Our  consolidated  financial  statements  are  impacted  by  the  accounting  policies  used  and  the  estimates  and 
assumptions  made  by  management  during  their  preparation.  Critical  accounting  policies  and  estimates  that  most 
significantly impact our consolidated financial statements are described below. 

Principles of Consolidation 

The  consolidated  financial  statements  include  our  accounts,  those  of  our  wholly-owned  subsidiaries  and 

entities in which we hold a controlling financial interest. 

The  Financial  Accounting  Standards  Board  (“FASB”)  issued  authoritative  guidance  for  noncontrolling 
interests in December 2007, which establishes accounting and reporting standards for the noncontrolling interest in a 
subsidiary  and  for  the  deconsolidation  of  a  subsidiary.  The  guidance  clarifies  that  a  noncontrolling  interest  in  a 
subsidiary,  which  is  sometimes  referred  to  as  an  unconsolidated  investment,  is  an  ownership  interest  in  the 
consolidated  entity  that  should  be  reported  as  a  component  of  equity  in  the  consolidated  financial  statements. 
Among other requirements, the guidance requires consolidated net income to be reported at amounts attributable to 
both the parent and the  noncontrolling interest. It also requires disclosure, on the  face of the consolidated income 
statement, of the amounts of consolidated net income attributable to the parent and to the noncontrolling interest. We 
adopted the provisions of the FASB guidance on January 1, 2009 and applied the provisions retrospectively, with no 
material impact. 

Our 2010 consolidated financial statements include the accounts of two 50 percent joint ventures where we 
hold  a  variable  interest  as  defined  under  FASB  codification  where  we  have  determined  that  we  are  the  primary 
beneficiary. Intercompany balances and transactions have been eliminated in consolidation. 

Amounts related to these two joint ventures at December 31, 2010, include the combined carrying amount of 
the drillships owned by the joint ventures of $869 million and total outstanding debt of $691 million, which excludes 
$72  million  of  joint  venture  partner  notes.  Our  portion  of  these  joint  venture  partner  notes,  which  totaled  $36 
million, has been eliminated in our Consolidated Balance Sheets. 

Property and Equipment 

Property and equipment is stated at cost, reduced by provisions to recognize economic impairment in value 
whenever  events  or  changes  in  circumstances  indicate  an  asset’s  carrying  value  may  not  be  recoverable.  At 
December 31, 2010 and 2009, we had $3.6 billion and $2.3 billion of construction-in-progress, respectively. Such 
amounts  are  included  in  “Drilling  equipment  and  facilities”  in  the  accompanying  Consolidated  Balance  Sheets. 
Major replacements and improvements are capitalized. When assets are sold, retired or otherwise disposed of, the 
cost  and  related  accumulated  depreciation  are  eliminated  from  the  accounts  and  the  gain  or  loss  is  recognized. 
Drilling equipment and facilities are depreciated using the straight-line method over their estimated useful lives as of 
the  date  placed  in  service  or  date  of  major  refurbishment.  Estimated  useful  lives  of  our  drilling  equipment  range 
from three to thirty  years. Other property and equipment is depreciated using the straight-line  method over useful 
lives ranging from two to thirty years. 

Interest is capitalized on construction-in-progress at the interest rate on debt incurred for construction or at 
the  weighted average cost of  debt outstanding during the period of construction. Capitalized interest  for the  years 
ended December 31, 2010, 2009 and 2008 was $83 million, $55 million and $48 million, respectively. 

Overhauls and scheduled maintenance of equipment are performed based on the number of hours operated in 
accordance  with  our  preventative  maintenance  program.  Routine  repair  and  maintenance  costs  are  charged  to 
expense  as  incurred;  however,  the  costs  of  the  overhauls  and  scheduled  major  maintenance  projects  that  benefit 
future periods and which typically occur every three to five years are deferred when incurred and amortized over an 
equivalent  period.  The  deferred  portion  of  these  major  maintenance  projects  is  included  in  “Other  Assets”  in  the 
Consolidated Balance Sheets. Such amounts totaled $183 million and $181 million at December 31, 2010 and 2009, 
respectively. 

45 

 
 
 
 
 
 
 
 
 
 
 
 
 
Amortization  of  deferred  costs  for  major  maintenance  projects  is  reflected  in  “Depreciation  and 
amortization” in the accompanying Consolidated Statements of Income. The amount of such amortization was $107 
million, $102 million and $91 million for the years ended December 31, 2010, 2009 and 2008, respectively. Total 
repair and maintenance expense for the years ended December 31, 2010, 2009 and 2008, exclusive of amortization 
of deferred costs for major maintenance projects, was $186 million, $175 million and $169 million, respectively. 

In addition to our annual review of impairment which occurs during the fourth quarter each year, we evaluate 
the  realization  of  property  and  equipment  whenever  events  or  changes  in  circumstances  indicate  that  the  carrying 
amount  of  an  asset  may  not  be  recoverable.  In  evaluating  the  need  for  impairment  we  utilize  a  number  of 
methodologies  in  the  valuation  of  our  rigs  including  utilizing  both  a  market-based  and  a  modified  income-based 
approach. An impairment loss on our property and equipment exists when both the market-based approach and the 
estimated undiscounted cash flows expected to result from the use of the asset and its eventual disposition are less 
than its carrying amount. Any impairment loss recognized represents the excess of the asset’s carrying value over 
the estimated fair value. 

In  May  2009,  our jackup  the  Noble  David  Tinsley  experienced  a  “punch-through”  while  the  rig  was  being 
positioned on location offshore Qatar. The incident involved the sudden penetration of all three legs through the sea 
bottom,  which resulted in severe damage to the legs and the rig. We recorded a charge of $17 million during the 
quarter ended June 30, 2009 related to this involuntary conversion, which includes approximately $9 million for the 
write-off of the damaged legs. 

During  the  first  quarter  of  2009,  we  recognized  a  charge  of  $12  million  related  to  the  Noble  Fri  Rodli,  a 
submersible  that  has  been  cold  stacked  since  October  2007.  We  recorded  the  charge  as  a  result  of  a  decision  to 
evaluate disposition alternatives for this rig. 

Insurance Reserves 

We  maintain  various  levels  of  self-insured  retention  for  certain  losses  including  property  damage,  loss  of 
hire, employment practices liability, employers’ liability, and general liability, among others. We accrue for property 
damage and loss of hire charges on a per event basis. 

Employment  practices  liability  claims  are  accrued  based  on  actual  claims  during  the  year.  Maritime 
employer’s  liability  claims  are  generally  estimated  using  actuarial  determinations.  General  liability  claims  are 
estimated  by  our  internal  claims  department  by  evaluating  the  facts  and  circumstances  of  each  claim  (including 
incurred  but  not  reported  claims)  and  making  estimates  based  upon  historical  experience  with  similar  claims.  At 
December 31, 2010 and 2009, loss reserves for personal injury and protection claims totaled $21 million and $23 
million, respectively, and such amounts are included in “Other current liabilities” in the accompanying Consolidated 
Balance Sheets. 

Revenue Recognition 

Revenues generated from our dayrate-basis drilling contracts and labor contracts are recognized as services 

are performed. 

We may receive lump-sum fees for the mobilization of equipment and personnel. Mobilization fees received 
and costs incurred to mobilize a drilling unit from one market to another are recognized over the term of the related 
drilling contract. Costs incurred to relocate drilling units to more promising geographic areas in which a contract has 
not  been  secured  are  expensed  as  incurred.  Lump-sum  payments  received  from  customers  relating  to  specific 
contracts,  including  equipment  modifications,  are  deferred  and  amortized  to  income  over  the  term  of  the  drilling 
contract. Deferred revenues under drilling contracts totaled $104 million and $32 million at December 31, 2010 and 
2009,  respectively.  Such  amounts  are  included  in  either  “Other  Current  Liabilities”  or  “Other  Liabilities”  in  our 
Consolidated Balance Sheets, based upon our expected time of recognition. 

Consistent  with  FASB  pronouncements,  we  record  reimbursements  from  customers  for  “out-of-pocket” 
expenses as revenues and the related direct cost as operating expenses. Reimbursements for loss of hire under our 
insurance coverages are included in “(Gain)/loss on assets disposal/involuntary conversion, net” in the Consolidated 
Statements of Income. 

46 

 
 
 
 
 
 
 
 
 
 
 
 
 
Income Taxes 

We  operate  through  various  subsidiaries  in  numerous  countries  throughout  the  world  including  the  United 
States. Income taxes have been provided based on the laws and rates in effect in the countries in which operations 
are conducted or in which we or our subsidiaries are considered resident for income tax purposes. The income and 
withholding  tax  rates  and  methods  of  computing  taxable  income  vary  significantly  for  each  jurisdiction. 
Consequently,  we  are  subject  to  changes  in  tax  laws,  treaties  or  regulations  or  the  interpretation  or  enforcement 
thereof in the U.S., Switzerland or jurisdictions in  which we or any of our subsidiaries operate or is resident. Our 
income tax expense is based upon our interpretation of the tax laws in effect in various countries at the time that the 
expense  was  incurred.  If  the  U.S.  Internal  Revenue  Service  or  other  taxing  authorities  do  not  agree  with  our 
assessment  of  the  effects  of  such  laws,  treaties  and  regulations,  this  could  have  a  material  adverse  effect  on  us, 
including  the  imposition  of  a  higher  effective  tax  rate  on  our  worldwide  earnings  or  a  reclassification  of  the  tax 
impact of our significant corporate restructuring transactions. Our income tax expense is expected to fluctuate from 
year to year as our operations and income fluctuates in the different taxing jurisdictions. 

As required by law, we file tax returns that are subject to review and examination by various tax authorities 
in the jurisdictions in which we operate. We are currently undergoing examinations in a number of jurisdictions for 
various  fiscal  years.  We  review  our  liabilities  and  tax  exposure  on  an  ongoing  basis  and,  to  the  extent  audits, 
settlements or other events cause us to adjust the prior period liabilities, we recognize such adjustments in the period 
of the event. We do not believe it is possible to reasonably project the impact of current or future examinations. Any 
settlement is based on a number of factors, which include among others, the amount asserted by the tax authorities, 
their willingness to negotiate and settle through their administrative process, the impartiality of their courts and the 
ability to offset such tax changes in other countries. 

We  maintain  liabilities  for  potential  tax  exposures  in  our  areas  of  operations  and  any  provision  or  benefit 
resulting from changes to such liabilities are included in our tax provision along with related penalties and interest as 
applicable.  Tax  exposures  include  potential  challenges  to  our  intercompany  transaction  pricing  methods, 
withholding  tax  rates,  deductibility  of  operating  and  intercompany  expenses  and  restructuring  transactions.  These 
exposures  are  typically  resolved  through  audit  settlements  or  through  judicial  means  but  can  also  be  affected  by 
changes in tax laws or other factors, which cause us to revise prior estimates. In addition, we may conduct future 
operations  in  certain  tax  jurisdictions  where  tax  laws  are  not  well  developed  and  it  may  be  difficult  to  obtain 
adequate professional advice. 

Applicable  income  and  withholding  taxes  have  not  been  provided  on  undistributed  earnings  of  our 
subsidiaries.  We  do  not  intend  to  repatriate  such  undistributed  earnings  for  the  foreseeable  future  except  for 
distributions upon which incremental income and withholding taxes would not be material. 

In certain jurisdictions we have recognized deferred tax assets and liabilities. Judgment and assumptions are 
required in determining whether deferred tax assets will be fully or partially utilized. When we estimate that all or 
some portion of certain deferred tax assets such as net operating loss carryforwards will not be utilized, we establish 
a valuation allowance for the amount ascertained to be unrealizable. We continually evaluate strategies that could 
allow for future utilization of our deferred assets. Any change in the ability to utilize such deferred assets  will be 
accounted  for  in  the  period  of  the  event  affecting  the  valuation  allowance.  If  facts  and  circumstances  cause  us  to 
change our expectations regarding future tax consequences, the resulting adjustments could have a material effect on 
our financial results or cash flow. 

In certain circumstances, we expect that, due to changing demands of the offshore drilling markets and the 
ability to redeploy our offshore drilling units, certain of such units will not reside in a location long enough to give 
rise  to  future  tax  consequences.  As  a  result,  no  deferred  tax  asset  or  liability  has  been  recognized  in  these 
circumstances. Should our expectations change regarding the length of time an offshore drilling unit will be used in 
a given location, we will adjust deferred taxes accordingly. 

47 

 
 
 
 
 
 
 
 
 
Certain Significant Estimates and Contingent Liabilities 

The  preparation  of  financial  statements  in  conformity  with  accounting  principles  generally  accepted  in  the 
United States of America requires management to make estimates and assumptions that affect the reported amounts 
of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and 
the  reported  amount  of  revenues  and  expenses  during  the  reporting  period.  Certain  accounting  policies  involve 
judgments and uncertainties to such an extent  that there is reasonable likelihood that  materially different amounts 
could  have  been  reported  under  different  conditions,  or  if  different  assumptions  had  been  used.  We  evaluate  our 
estimates  and  assumptions  on  a  regular  basis.  We  base  our  estimates  on  historical  experience  and  various  other 
assumptions  that  are  believed  to  be  reasonable  under  the  circumstances,  the  results  of  which  form  the  basis  for 
making  judgments  about  carrying  values  of  assets  and  liabilities  that  are  not  readily  apparent  from  other  sources. 
Actual  results  may  differ  from  these  estimates  and  assumptions  used  in  preparation  of  our  consolidated  financial 
statements. In addition, we are involved in several litigation matters, some of which could lead to potential liability 
to us. We follow FASB standards regarding contingent liabilities which are discussed in Note 14 “Commitments and 
Contingencies” in our Consolidated Financial Statements. 

New Accounting Pronouncements 

In June 2009, the FASB issued guidance which expanded disclosures that a reporting entity provides about 
transfers  of  financial  assets  and  their  effect  on  the  financial  statements.  This  guidance  is  effective  for  annual  and 
interim reporting periods beginning after November 15, 2009. The adoption of this guidance did not have a material 
impact on our financial condition, results of operations, cash flows or financial disclosures. 

Also in June 2009, the FASB issued guidance that revises how an entity evaluates variable interest entities. 
This  guidance  is  effective  for  annual  and  interim  reporting  periods  beginning  after  November  15,  2009.  The 
adoption of this guidance did not have a material impact on our financial condition, results of operations, cash flows 
or financial disclosures. 

In October 2009, the FASB issued guidance that impacts the recognition of revenue in multiple-deliverable 
arrangements. The guidance establishes a selling-price hierarchy for determining the selling price of a deliverable. 
The  goal  of  this  guidance  is  to  clarify  disclosures  related  to  multiple-deliverable  arrangements  and  to  align  the 
accounting  with  the  underlying  economics  of  the  multiple-deliverable  transaction.  This  guidance  is  effective  for 
fiscal years beginning on or after June 15, 2010. We do not believe this guidance will have a material impact on our 
financial condition, results of operations, cash flows or financial disclosures. 

In  January  2010,  the  FASB  issued  guidance  relating  to  the  disclosure  of  the  fair  value  of  assets.  This 
guidance  calls  for  additional  information  to  be  given  regarding  the  transfer  of  items  in  and  out  of  respective 
categories.  In  addition,  it  requires  additional  disclosures  regarding  purchases,  sales,  issuances,  and  settlements  of 
assets that are classified as level three within the FASB fair value hierarchy. This guidance is generally effective for 
annual  and  interim  periods  ending  after  December  15,  2009.  However,  the  disclosures  about  purchases,  sales, 
issuances and settlements in the roll-forward activity in level three fair value measurements are deferred until fiscal 
years beginning after December 15, 2010. These additional disclosures did not have and are not expected to have a 
material impact on our financial condition, results of operations, cash flows or financial disclosures. 

In  February  2010,  the  FASB  issued  guidance  that  clarifies  the  disclosure  of  subsequent  events  for  SEC 
registrants. Under this guidance an SEC registrant can disclose that the company has considered subsequent events 
through the date of filing with the SEC as opposed to specifically stating the date to which subsequent events were 
considered. This guidance is effective upon the issuance of the guidance. Our adoption of this guidance did not have 
a material impact on our financial condition, results of operations, cash flows or financial disclosures. 

In April 2010, the FASB issued guidance that codifies the need for disclosure relating to the disallowance of 
various credits as a result of the passage of both the Health Care and Education Reconciliation Act of 2010 and the 
Patient Protection and Affordable Care Act, which were signed into law in March 2010. The passage of these acts 
did not have an impact on our financial condition, results of operations, cash flows or financial disclosures. 

48 

 
 
 
 
 
 
 
 
 
 
 
In December 2010, the FASB issued guidance that requires a public entity to disclose pro forma information 
for business combinations that occurred in the current reporting period. The disclosures include pro forma revenue 
and earnings of the combined entity for the current reporting period as though the acquisition date for all business 
combinations  that  occurred  during  the  year  had  been  as  of  the  beginning  of  the  annual  reporting  period.  If 
comparative financial statements are presented, the pro forma revenue and earnings of the combined entity for the 
comparable prior reporting period should be reported as though the acquisition date for  all business combinations 
that occurred during the current year had been as of the beginning of the comparable prior annual reporting period. 
The  guidance  is  effective  for  annual  reporting  periods  beginning  on  or  after  December  15,  2010.  We  do  not 
anticipate the adoption of this guidance to have a material impact on our financial condition, results of operations, 
cash flows or financial disclosures. 

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.  

Market  risk  is  the  potential  for  loss  due  to  a  change  in  the  value  of  a  financial  instrument  as  a  result  of 

fluctuations in interest rates, currency exchange rates or equity prices, as further described below. 

Interest Rate Risk 

We are subject to market risk exposure related to changes  in interest rates on borrowings under the  Credit 
Facility. Interest on borrowings under the Credit Facility is at an agreed upon percentage point spread over LIBOR, 
or a base rate stated in the agreement. At December 31, 2010, we had $40 million in borrowings outstanding under 
the Credit Facility. 

As part of the Frontier acquisition, we acquired an interest in the two Bully joint ventures with Shell. These 
joint ventures maintain interest rate swaps which are classified as cash flow hedges. The interest rate swaps relate to 
debt  for  the  construction  of  the  two  Bully-class  rigs  undertaken  by  the  two  joint  ventures,  and  the  hedges  are 
designed to fix the cash paid for interest on these projects. The purpose of these hedges is to satisfy bank covenants 
and to limit exposure to changes in interest rates. There are no credit risk related contingency features embedded in 
these  swap  agreements.  The  aggregate  notional  amounts  of  the  interest  rate  swaps  totaled  $604  million  as  of 
December 31, 2010. The notional amounts and settlement dates for the Bully 1 are $278 million, with $47 million 
settling June 30, 2011 and the remainder settling quarterly, with the final amounts settling in December 2014. The 
notional amount and settlement dates for the Bully 2 interest rate swap is $326 million which settles quarterly, with 
the final amount settling in January 2018. The carrying amount of these interest rate swaps was $27 million which 
includes $31 million included in liabilities as part of the purchase price allocation for the Frontier acquisition and 
$0.4  million  of  unrealized  gains  included  in  “Accumulated  other  comprehensive  income  (loss)”  at  December  31, 
2010 in our Consolidated Balance Sheets. A one percent change in the LIBOR rate would result in approximately an 
additional  $1  million  of  interest  charges  per  year.  In  February  2011,  the  outstanding  balances  of  the  Bully  1  and 
Bully  2  credit  facilities,  which  totaled  $691  million,  were  repaid  in  full  and  the  credit  facilities  terminated.  In 
addition, the related interest rate swaps were settled and terminated concurrent with the repayment and termination 
of the credit facilities. 

We  maintain  certain  debt  instruments  at  a  fixed  rate  whose  fair  value  will  fluctuate  based  on  changes  in 
interest rates and market perceptions of our credit risk. The fair value of our total debt was $2.9 billion and $839 
million at December 31, 2010 and 2009, respectively. The increase was a result of our issuance of $1.25 billion in 
debt, the assumption of $689 million of debt in the Frontier acquisition, the issuance of $40 million in our revolving 
credit  facility,  and  the  issuance  of  $36  million  of  joint  venture  partner  debt,  coupled  with  changes  in  fair  value 
related to changes in interest rates and market perceptions of our credit risk. 

Foreign Currency Risk 

As a multinational company, we conduct business in approximately 16 countries. Our functional currency is 
primarily the U.S. Dollar, which is consistent with the oil and gas industry. However, outside the United States, a 
portion of our expenses are incurred in local currencies. Therefore, when the U.S. Dollar weakens (strengthens) in 
relation to the currencies of the countries in which we operate, our expenses reported in U.S. Dollars will increase 
(decrease). 

49 

 
 
 
 
 
 
 
 
 
 
 
We  are  exposed  to  risks  on  future  cash  flows  to  the  extent  that  local  currency  expenses  exceed  revenues 
denominated  in  local  currency  that  are  other  than  the  functional  currency.  To  help  manage  this  potential  risk,  we 
periodically enter into derivative instruments to manage our exposure to fluctuations in currency exchange rates, and 
we  may  conduct  hedging  activities  in  future  periods  to  mitigate  such  exposure.  These  contracts  are  primarily 
accounted for as cash flow hedges, with the effective portion of changes in the fair value of the hedge recorded on 
the  Consolidated  Balance  Sheet  and  in  “Accumulated  other  comprehensive  income  (loss)”.  Amounts  recorded  in 
“Accumulated other comprehensive income (loss)” are reclassified into earnings in the same period or periods that 
the hedged item is recognized in earnings. The ineffective portion of changes in the fair value of the hedged item is 
recorded  directly  to  earnings.  We  have  documented  policies  and  procedures  to  monitor  and  control  the  use  of 
derivative instruments. We do not engage in derivative transactions for speculative or trading purposes, nor are we a 
party  to  leveraged  derivatives;  however,  we  do  maintain  certain  derivatives  which  were  not  designated  for  hedge 
accounting under FASB standards. 

Our North Sea and Brazil operations have a significant amount of their cash operating expenses payable in 
local  currencies.  To  limit  the  potential  risk  of  currency  fluctuations,  we  typically  maintain  short-term  forward 
contracts settling monthly in their respective local currencies to mitigate exchange exposure. The forward contract 
settlements  in  2011  represent  approximately  20  percent  of  these  forecasted  local  currency  requirements.  The 
notional amount of the forward contracts outstanding, expressed in U.S. Dollars, was approximately $53 million at 
December 31, 2010. Total unrealized gains related to these forward contracts were $2 million and $0.4 million as of 
December 31, 2010 and 2009, respectively, and were recorded as part of “Accumulated other comprehensive loss” 
in our Consolidated Balance Sheets. A ten percent change in the exchange rate for the local currencies would change 
the fair value of these forward contracts by approximately $5 million. 

We  have  entered  into  a  firm  commitment  for  the  construction  of  our  Noble  Globetrotter  I  drillship.  The 
drillship  will  be  constructed  in  two  phases,  with  the  second  phase  being  installation  and  commissioning  of  the 
topside equipment. Our payment obligation for this second phase of construction is denominated in Euros, and in 
order  to  mitigate  the  risk  of  fluctuations  in  foreign  currency  exchange  rates,  we  entered  into  forward  contracts  to 
purchase Euros. As of December 31, 2010, the aggregate notional amount of the remaining forward contracts was 30 
million  Euros.  Each  forward  contract  settles  in  connection  with  required  payments  under  the  contract.  We  are 
accounting for these forward contracts as fair value hedges. The fair market value of these derivative instruments is 
included  in  “Other  current  assets/liabilities”  or  “Other  assets/liabilities”  in  our  Consolidated  Balance  Sheets, 
depending on when the forward contract is expected to be settled. Gains and losses from these fair value hedges are 
recognized in earnings currently along with the change in fair value of the hedged item attributable to the risk being 
hedged.  The  fair  market  value  of  these  outstanding  forward  contracts,  which  are  included  in  “Other  current 
assets/liabilities”  and  “Other  assets/liabilities,”  totaled  approximately  $3  million  at  December  31,  2010  and  $0.8 
million at December 31, 2009. A ten percent change in the exchange rate for the Euro would change the fair value of 
these forward contracts by approximately $4 million. 

The Bully 2 joint venture maintained foreign exchange forward contracts to help mitigate the risk of currency 
fluctuation of the Singapore Dollar for the construction of the Bully II vessel taking place in a Singapore shipyard. 
The notional amount on these contracts totaled approximately $31 million as of December 31, 2010. These contracts 
do  not  qualify  for  hedge  accounting  treatment  under  FASB  standards  and  therefore  changes  in  fair  values  are 
recognized as either income or loss in our consolidated income statement. For the year ended December 31, 2010, 
we have recognized a gain of $2 million related to these foreign exchange forward contracts. A ten percent change 
in the exchange rate for the local currencies would change the fair value of these forward contracts and impact net 
income by approximately $3 million. 

50 

 
 
 
 
 
 
Market Risk 

We  sponsor  the  Noble  Drilling  Corporation  401(k)  Savings  Restoration  Plan  (“Restoration  Plan”).  The 
Restoration  Plan  is  a  nonqualified,  unfunded  employee  benefit  plan  under  which  certain  highly  compensated 
employees  may  elect  to  defer  compensation  in  excess  of  amounts  deferrable  under  our  401(k)  savings  plan.  The 
Restoration Plan has no assets, and amounts withheld for the Restoration Plan are kept by us for general corporate 
purposes.  The  investments  selected  by  employees  and  the  associated  returns  are  tracked  on  a  phantom  basis. 
Accordingly, we have a liability to employees for amounts originally withheld plus phantom investment income or 
less  phantom  investment  losses.  We  are  at  risk  for  phantom  investment  income  and,  conversely,  benefit  should 
phantom investment losses occur. At December 31, 2010, our liability under the Restoration Plan totaled $7 million. 
We  have  purchased  investments  that  closely  correlate  to  the  investment  elections  made  by  participants  in  the 
Restoration Plan in order to mitigate the impact of the phantom investment income and losses on our consolidated 
financial statements. The value of these investments held for our benefit totaled $7 million at December 31, 2010. A 
ten percent change in the fair value of the phantom investments would change our liability by approximately $0.7 
million. Any change in the fair value of the phantom investments would be mitigated by a change in the investments 
held for our benefit. 

We also have a U.S. noncontributory defined benefit pension plan that covers certain salaried employees and 
a  U.S.  noncontributory  defined  benefit  pension  plan  that  covers  certain  hourly  employees,  whose  initial  date  of 
employment  is  prior  to  August  1,  2004  (collectively  referred  to  as  our  “qualified  U.S.  plans”).  These  plans  are 
governed by the Noble Drilling Corporation Retirement Trust (the “Trust”). The benefits from these plans are based 
primarily on years of service and, for the salaried plan, employees’ compensation near retirement. These plans are 
designed  to  qualify  under  the  Employee  Retirement  Income  Security  Act  of  1974  (“ERISA”),  and  our  funding 
policy is consistent with funding requirements of ERISA and other applicable laws and regulations. We make cash 
contributions, or utilize credits available to us, for the qualified U.S. plans when required. The benefit amount that 
can be covered by the qualified U.S. plans is limited under ERISA and the Internal Revenue Code (“IRC”) of 1986. 
Therefore,  we  maintain  an  unfunded,  nonqualified  excess  benefit  plan  designed  to  maintain  benefits  for  all 
employees at the formula level in the qualified U.S. plans. We refer to the qualified U.S. plans and the excess benefit 
plan collectively as the “U.S. plans”. 

In addition to the U.S. plans, each of Noble Drilling (Land Support) Limited, Noble Enterprises Limited and 
Noble Drilling (Nederland) B.V., all indirect, wholly-owned subsidiaries of Noble-Swiss, maintains a pension plan 
that covers all of its salaried, non-union employees (collectively referred to as our “non-U.S. plans”). Benefits are 
based on credited service and employees’ compensation near retirement, as defined by the plans. 

Changes in market asset value related to the pension plans noted above could have a material impact upon 
our  Consolidated  Statements  of  Comprehensive  Income  and  could  result  in  material  cash  expenditures  in  future 
periods. 

51 

 
 
 
 
 
 
 
Item 8. Financial Statements and Supplementary Data.  

The following financial statements are filed in this Item 8:  

  Page   

Report of Independent Registered Public Accounting Firm (Noble-Swiss) ................................................... 

53 

Noble Corporation (Noble-Swiss) and Subsidiaries Consolidated Balance Sheets as of December 31, 

2010 and 2009 .............................................................................................................................................. 

54 

Noble Corporation (Noble-Swiss) and Subsidiaries Consolidated Statements of Income for the Years 

Ended December 31, 2010, 2009 and 2008 .................................................................................................. 

55 

Noble Corporation (Noble-Swiss) and Subsidiaries Consolidated Statements of Cash Flows for the Years 
Ended December 31, 2010, 2009 and 2008 .................................................................................................. 

56 

Noble Corporation (Noble-Swiss) and Subsidiaries Consolidated Statements of Equity for the Years 

Ended December 31, 2010, 2009 and 2008 .................................................................................................. 

57 

Noble Corporation (Noble-Swiss) and Subsidiaries Consolidated Statements of Comprehensive Income 

for the Years Ended December 31, 2010, 2009 and 2008 ............................................................................ 

Report of Independent Registered Public Accounting Firm (Noble-Cayman) ............................................... 

58 

59 

Noble Corporation (Noble-Cayman) and Subsidiaries Consolidated Balance Sheets as of December 31, 

2010 and 2009 .............................................................................................................................................. 

60 

Noble Corporation (Noble-Cayman) and Subsidiaries Consolidated Statements of Income for the Years 

Ended December 31, 2010, 2009 and 2008 .................................................................................................. 

61 

Noble Corporation (Noble-Cayman) and Subsidiaries Consolidated Statements of Cash Flows for the 

Years Ended December 31, 2010, 2009 and 2008........................................................................................ 

62 

Noble Corporation (Noble-Cayman) and Subsidiaries Consolidated Statements of Equity for the Years 

Ended December 31, 2010, 2009 and 2008 .................................................................................................. 

63 

Noble Corporation (Noble-Cayman) and Subsidiaries Consolidated Statements of Comprehensive Income 
for the Years Ended December 31, 2010, 2009 and 2008 ............................................................................ 

Notes to Consolidated Financial Statements .................................................................................................. 

64 

65 

52 

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

To the Board of Directors and Shareholders of Noble Corporation, a Swiss Corporation (“Noble-Swiss”) 

In  our  opinion,  the  accompanying  consolidated  balance  sheets  and  the  related  consolidated  statements  of  income, 
comprehensive income, equity and cash flows present fairly, in all material respects, the financial position of Noble-
Swiss and its subsidiaries at December 31, 2010 and 2009, and the results of their operations and their cash flows for 
each of the three years in the period ended December 31, 2010 in conformity with accounting principles generally 
accepted  in  the  United  States  of  America.  Also  in  our  opinion,  the  Company  maintained,  in  all  material  respects, 
effective internal control over financial reporting as of December 31, 2010, based on criteria established in Internal 
Control  —  Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway 
Commission  (COSO).  The  Company’s  management  is  responsible  for  these  financial  statements,  for  maintaining 
effective internal control over financial reporting and for its assessment of the effectiveness of internal control over 
financial  reporting,  included  in  Management’s  Annual  Report  on  Internal  Control  over  Financial  Reporting 
appearing  under  Item  9A.  Our  responsibility  is  to  express  opinions  on  these  financial  statements  and  on  the 
Company’s  internal  control  over  financial  reporting  based  on  our  integrated  audits.  We  conducted  our  audits  in 
accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards 
require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are 
free of material misstatement and whether effective internal control over financial reporting was maintained in all 
material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the 
amounts  and  disclosures  in  the  financial  statements,  assessing  the  accounting  principles  used  and  significant 
estimates  made  by  management,  and  evaluating  the  overall  financial  statement  presentation.  Our  audit  of  internal 
control  over  financial  reporting  included  obtaining  an  understanding  of  internal  control  over  financial  reporting, 
assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness 
of  internal  control  based  on  the  assessed  risk.  Our  audits  also  included  performing  such  other  procedures  as  we 
considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions. 

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  (i)  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail, 
accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) 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 (iii) 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/ PricewaterhouseCoopers LLP  

Houston, Texas 
February 25, 2011 

53 

 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
CONSOLIDATED BALANCE SHEET 
(In thousands) 

  December 31, 
2010 

 December 31, 
2009 

ASSETS 
Current assets 

Cash and cash equivalents ............................................................................  $  
Accounts receivable...................................................................................... 
Prepaid expenses .......................................................................................... 
Other current assets ...................................................................................... 
Total current assets ........................................................................................... 

$  

337,871 
387,414 
35,502 
69,941 
830,728 

735,493 
647,454 
26,938 
73,305 
1,483,190 

Property and equipment 

Drilling equipment and facilities .................................................................. 
Other............................................................................................................. 

Accumulated depreciation ............................................................................ 

12,471,283 
172,583 
12,643,866 
(2,595,779) 
  10,048,087 

Other assets....................................................................................................... 

342,506 
Total assets ..............................................................................................  $   11,221,321 

LIABILITIES AND EQUITY 
Current liabilities 

Current maturities of long-term debt ............................................................  $  
Accounts payable ......................................................................................... 
Accrued payroll and related costs................................................................. 
Taxes payable ............................................................................................... 
Interest payable............................................................................................. 
Other current liabilities................................................................................. 
Total current liabilities...................................................................................... 

Long-term debt ................................................................................................. 
Deferred income taxes ...................................................................................... 
Other liabilities ................................................................................................. 
Total liabilities ........................................................................................ 

80,213 
374,814 
125,663 
15,382 
40,260 
84,049 
720,381 

2,686,484 
258,822 
268,000 
3,933,687 

$  

$  

8,666,750 
143,477 
8,810,227 
(2,175,775) 
6,634,452 

279,254 
8,396,896 

— 
197,800 
100,167 
68,760 
11,258 
55,962 
433,947 

750,946 
300,231 
123,340 
1,608,464 

Commitments and contingencies 

Shareholders’ equity 

Shares; 262,415 shares and 261,975 shares outstanding .............................. 
Treasury shares, at cost; 10,140 shares and 3,750 shares ............................. 
Additional paid-in capital ............................................................................. 
Retained earnings ......................................................................................... 
Accumulated other comprehensive loss ....................................................... 
Total shareholders’ equity ..................................................................... 

917,684 
(373,967) 
39,006 
6,630,500 
(50,220) 
7,163,003 

1,130,607 
(143,031) 
— 
5,855,737 
(54,881) 
6,788,432 

Noncontrolling interests ............................................................................... 

124,631 

— 

Total equity ............................................................................................. 

7,287,634 

6,788,432 

Total liabilities and equity .....................................................................  $   11,221,321 

$  

8,396,896 

See accompanying notes to the consolidated financial statements. 

54 

 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF INCOME 
(In thousands, except per share amounts) 

Year Ended December 31, 
2009 

2010 

2008 

Operating revenues 

Contract drilling services................................................................  $  2,695,493  $  3,509,755  $  3,298,850 
90,849 
Reimbursables ................................................................................ 
55,078 
Labor contract drilling services ...................................................... 
Other............................................................................................... 
1,724 
  3,446,501 

99,201 
30,298 
1,530 
  3,640,784 

76,831 
32,520 
2,332 
  2,807,176 

Operating costs and expenses 

Contract drilling services................................................................ 
Reimbursables ................................................................................ 
Labor contract drilling services ...................................................... 
Depreciation and amortization........................................................ 
Selling, general and administrative ................................................ 
 (Gain)/loss on asset disposal/involuntary conversion, net............. 

  1,177,800 
59,414 
22,056 
539,829 
91,997 
— 
  1,891,096 

  1,006,764 
85,035 
18,827 
408,313 
80,262 
30,839 
  1,630,040 

  1,011,882 
79,327 
42,573 
356,658 
74,143 
(26,485) 
  1,538,098 

Operating income ............................................................................. 

916,080 

  2,010,744 

  1,908,403 

Other income (expense) 

Interest expense, net of amount capitalized .................................... 
Interest income and other, net......................................................... 
Income before income taxes ............................................................. 
Income tax provision ...................................................................... 
Net income ......................................................................................... 

(9,457) 
9,886 
916,509 
(143,077) 
773,432 

(1,685) 
6,843 
  2,015,902 
(337,260) 
  1,678,642 

(4,388) 
8,443 
  1,912,458 
(351,463) 
  1,560,995 

Net income attributable to noncontrolling interests........................ 
Net income attributable to Noble Corporation ..............................  $ 

(3) 

— 
773,429  $  1,678,642  $  1,560,995 

— 

Net income per share attributable to Noble Corporation 

Basic ...............................................................................................  $ 
Diluted ............................................................................................  $ 

3.03  $ 
3.02  $ 

6.44  $ 
6.42  $ 

Dividends per share ..........................................................................  $ 

0.88  $ 

0.18  $ 

5.85 
5.81 

0.91 

Weighted-Average Shares Outstanding: 

Basic ............................................................................................... 
Diluted ............................................................................................ 

253,123 
253,936 

258,035 
258,891 

264,782 
266,805 

See accompanying notes to the consolidated financial statements. 

55 

 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF CASH FLOWS 
(In thousands) 

Year Ended December 31, 
2009 

2010 

2008 

773,432 

$  1,678,642 

$  1,560,995 

Cash flows from operating activities 

Net income ...............................................................................   $ 
Adjustments to reconcile net income to net cash from 

operating activities: 
Depreciation and amortization..............................................  
(Gain)/Loss on asset disposal/involuntary conversion, net ........ 
Deferred income tax provision .............................................  
Share-based compensation ...................................................  
Pension contributions ...........................................................  

Other changes in assets and liabilities: 

Accounts receivable..............................................................  
Other current assets ..............................................................  
Other assets...........................................................................  
Accounts payable..................................................................  
Other current liabilities.........................................................  
Other liabilities .....................................................................  
Net cash from operating activities ....................................  

Cash flows from investing activities 

New construction......................................................................  
Other capital expenditures ........................................................  
Major maintenance expenditures..............................................  
Accrued capital expenditures....................................................  
Acquisition of FDR Holdings, Ltd., net of cash acquired ........  
Hurricane insurance receivables...............................................  
Proceeds from disposal of assets ..............................................  
Net cash from investing activities.....................................  

Cash flows from financing activities 

Borrowings on bank credit facilities.........................................  
Payments on bank credit facilities ............................................  
Proceeds from issuance of notes to joint venture partner .........  
Proceeds from issuance of senior notes, net of debt issuance 

539,829 
— 
(41,409) 
34,930 
(16,464) 

343,844 
3,976 
16,171 
(43,938) 
15,975 
28,030 
1,654,376 

(653,269) 
(666,673) 
(103,542) 
139,185 
(1,629,644) 
— 
— 
(2,913,943) 

40,000 
— 
35,000 

costs........................................................................................  
Payments of other long-term debt ............................................  
Settlement of interest rate swap................................................  
Net proceeds from employee stock transactions.......................  
Repurchases of employee shares ..............................................  
Dividends/par value reduction payments paid..........................  
Repurchases of ordinary shares ................................................  
Net cash from financing activities ....................................  
Net (decrease) increase in cash and cash equivalents .......  
Cash and cash equivalents, beginning of period ......................  
Cash and cash equivalents, end of period.................................   $ 

1,238,074 
— 
(6,186) 
11,828 
(10,116) 
(227,325) 
(219,330) 
861,945 
(397,622) 
735,493 
337,871 

$ 

408,313 
30,839 
36,866 
37,995 
(17,639) 

(48,839) 
(17,723) 
3,589 
11,646 
(1,979) 
15,006 
2,136,716 

(717,148) 
(594,957) 
(119,393) 
(63,561) 
— 
— 
— 
(1,495,059) 

— 
— 
— 

— 
(172,700) 
— 
12,168 
(7,106) 
(47,939) 
(203,898) 
(419,475) 
222,182 
513,311 
735,493 

356,658 
(26,485) 
51,026 
35,899 
(21,439) 

(31,725) 
(18,237) 
8,575 
2,490 
(19,620) 
(9,945) 
1,888,192 

(799,736) 
(323,955) 
(107,630) 
40,830 
— 
21,747 
39,451 
(1,129,293) 

30,000 
(130,000) 
— 

249,238 
(10,335) 
— 
12,771 
— 
(244,198) 
(314,122) 
(406,646) 
352,253 
161,058 
513,311 

$ 

See accompanying notes to the consolidated financial statements. 

56 

 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF EQUITY 
(In thousands) 

Shares 

 Balance   

 Par Value  

  Capital in 
  Excess of   
  Par Value  

  Retained   
  Earnings   

 Treasury  
  Shares 

Noncontrolling  
Interests 

 Accumulated 
Other 
Comprehensive  
Loss 

  Total 
  Equity 

Balance at January 1, 2008.........................    268,223  $ 

26,822  $ 

683,697  $ 3,602,870  $ 

—  $   

—  $   

(5,067)  $  4,308,322 

Share-based compensation 

Share-based compensation ....................   
Contribution to employee benefit 

plans....................................................   
Exercise of stock options.......................   
Tax benefit of stock options exercised.......    
Restricted shares surrendered for 

1,176 

10 
1,008 
— 

117 

1 
102 
— 

35,782 

629 
19,339 
3,467 

— 

— 
— 
— 

withholding taxes or forfeited .............   
Repurchases of ordinary shares .................   
Net income................................................   
Dividends paid ($0.91 per Share) ..............   
Other comprehensive income (loss), net....   

(553)   
(7,965)   
— 
— 
— 

(56)   
(796)   
— 
— 
— 

(10,081) 
(330,718) 
— 
— 
— 

— 
— 
  1,560,995 

(244,198)   

— 

— 

— 
— 
— 

— 
— 
— 
— 

— 

— 
— 
— 

— 
— 
— 
— 

— 

— 
— 
— 

— 
— 
— 
— 

(52,190)   

35,899 

630 
19,441 
3,467 

(10,137) 
(331,514) 
  1,560,995 
(244,198) 
(52,190) 

Balance at December 31, 2008....................    261,899  $ 

26,190  $ 

402,115  $ 4,919,667  $ 

—  $   

—  $   

(57,257)  $  5,290,715 

Share-based compensation 

Share-based compensation ....................   
Contribution to employee benefit 

plans....................................................   
Exercise of stock options.......................   
Tax benefit of stock options exercised.......    
Restricted shares surrendered for 

1,472 

17 
720 
— 

(413)   
withholding taxes or forfeited .............   
Repurchases of ordinary shares .................   
(1,720)   
Cancellation of shares in Transaction........   (261,246)   
Issuance of shares in Transaction ..............    261,246 
Net income................................................   
— 
Dividends/par value reduction payments 

766 

49 
3,098 
— 

(597)   
(172)   
(26,125)   

  1,162,332 
— 

8,255 

28,974 

339 
8,908 
9,144 

152 
162 
(1,597) 

(5,527) 
(43,303) 
26,125 
(386,382) 
— 

(982)   
— 

  (143,031)   

(775,950)   

— 
  1,678,642 

— 

— 
— 
— 

— 

— 
— 
— 

— 
— 

— 

— 
— 
— 

— 
— 
— 
— 
— 

— 
— 

— 

— 
— 
— 

— 
— 
— 
— 
— 

37,995 

540 
12,168 
7,547 

(7,106) 
(186,506) 
(775,950) 
775,950 
  1,678,642 

— 
2,376 

(47,939) 
2,376 

paid ($0.18 per share)..............................   
Other comprehensive income (loss), net....   

— 
— 

(34,934)   

— 

— 
— 

(13,005)   

— 

Balance at December 31, 2009....................    261,975  $ 1,130,607  $ 

—  $ 5,855,737  $ (143,031)  $   

—  $   

(54,881)  $  6,788,432 

Employee related equity activity 

Share-based compensation ....................   
Contribution to employee benefit 

plans....................................................   
Exercise of stock options.......................   
Tax benefit of stock options exercised.......    
Restricted shares forfeited or 

repurchased for taxes...........................   
Repurchases of shares ...............................   
Net income................................................   
Dividends/par value reduction payments 

paid ($0.88).............................................   

Noncontrolling interests from FDR 

Holdings, Ltd. acquisition .......................   
Other comprehensive income (loss), net....   

313 

34,617 

78 

8 
538 
— 

30 
2,119 
— 

(184)   
— 
— 

(809)   
— 
— 

196 
9,483 
6,494 

965 
— 
— 

— 

— 
— 

(214,576)   

(12,749) 

— 
— 

— 
— 

— 

— 
— 
— 

— 

— 
— 
— 

1,334 

(11,606)   
  (219,330)   

773,429 

— 

— 
— 

— 

— 

— 
— 

— 

— 
— 
— 

— 
— 
3 

— 

— 

— 
— 
— 

— 
— 
— 

— 

34,930 

226 
11,602 
6,494 

(10,116) 
(219,330) 
773,432 

(227,325) 

124,628 
— 

— 
4,661 

124,628 
4,661 

Balance at December 31, 2010....................    262,415  $  917,684  $ 

39,006  $ 6,630,500  $ (373,967)  $   

124,631  $   

(50,220)  $  7,287,634 

See accompanying notes to the consolidated financial statements. 

57 

 
 
 
  
  
  
  
 
 
  
  
  
  
  
  
  
 
  
  
 
  
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME 
(In thousands) 

Year Ended December 31, 

2010 

2009 

2008 

Net income ...............................................................................................   $  773,432  $  1,678,642  $  1,560,995 

Other comprehensive income (loss), net of tax 

Foreign currency translation adjustments .........................................  
Gain (loss) on foreign currency forward contracts ...........................  
Gain (loss) on interest rate swaps .....................................................  
Net pension plan gain (loss) (net of a tax benefit of $2,888 in 2010, 
$1,635 in 2009 and $16,630 in 2008) .............................................  

Amortization of deferred pension plan amounts (net of tax 

2,456 
1,187 
366 

277 
417 
— 

(19,095) 
(2,219) 
— 

(1,898)   

(1,424)   

(31,806) 

provision of $1,286 in 2010, $653 in 2009 and $413 in 2008 ........  
Other comprehensive income (loss), net ..............................................  

2,550 
4,661 

3,106 
2,376 

930 
(52,190) 

Total comprehensive income ....................................................................  

  778,093 

  1,681,018 

  1,508,805 

Less: Net income attributable to noncontrolling interests ........................  

(3)   

Less: Noncontrolling portion of gain on interest rate swaps.....................  

(183)   

— 

— 

— 

— 

Comprehensive income attributable to Noble Corporation................   $  777,907  $  1,681,018  $  1,508,805 

See accompanying notes to the consolidated financial statements. 

58 

 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

To the Board of Directors and Shareholder of Noble Corporation, a Cayman Islands Company (“Noble-Cayman”): 

In  our  opinion,  the  accompanying  consolidated  balance  sheets  and  the  related  consolidated  statements  of  income, 
comprehensive income, equity and cash flows present fairly, in all material respects, the financial position of Noble-
Cayman and its subsidiaries at December 31, 2010 and 2009, and the results of their operations and their cash flows 
for  each  of  the  three  years  in  the  period  ended  December  31,  2010  in  conformity  with  accounting  principles 
generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material 
respects, effective internal control over financial reporting as of December 31, 2010, based on criteria established in 
Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway 
Commission  (COSO).  The  Company’s  management  is  responsible  for  these  financial  statements,  for  maintaining 
effective internal control over financial reporting and for its assessment of the effectiveness of internal control over 
financial  reporting,  included  in  Management’s  Annual  Report  on  Internal  Control  Over  Financial  Reporting 
appearing  under  Item  9A.  Our  responsibility  is  to  express  opinions  on  these  financial  statements  and  on  the 
Company’s  internal  control  over  financial  reporting  based  on  our  integrated  audits.  We  conducted  our  audits  in 
accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards 
require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are 
free of material misstatement and whether effective internal control over financial reporting was maintained in all 
material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the 
amounts  and  disclosures  in  the  financial  statements,  assessing  the  accounting  principles  used  and  significant 
estimates  made  by  management,  and  evaluating  the  overall  financial  statement  presentation.  Our  audit  of  internal 
control  over  financial  reporting  included  obtaining  an  understanding  of  internal  control  over  financial  reporting, 
assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness 
of  internal  control  based  on  the  assessed  risk.  Our  audits  also  included  performing  such  other  procedures  as  we 
considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions. 

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  (i)  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail, 
accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) 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 (iii) 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/ PricewaterhouseCoopers LLP  

Houston, Texas 
February 25, 2011 

59 

 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONSOLIDATED BALANCE SHEET 
(In thousands) 

  December 31, 
2010 

  December 31, 
2009 

ASSETS 
Current assets 

Cash and cash equivalents ............................................................................  $  
Accounts receivable...................................................................................... 
Prepaid expenses .......................................................................................... 
Other current assets ...................................................................................... 
Total current assets ........................................................................................... 

333,399  $  
387,414 
33,232 
69,821 
823,866 

726,225 
647,454 
26,289 
72,917 
1,472,885 

Property and equipment 

Drilling equipment and facilities .................................................................. 
Other............................................................................................................. 

Accumulated depreciation ............................................................................ 

12,471,283 
143,691 
12,614,974 
(2,594,954) 
  10,020,020 

Other assets....................................................................................................... 

342,592 

Total assets ..............................................................................................  $   11,186,478  $  

LIABILITIES AND EQUITY 
Current liabilities 

Current maturities of long-term debt ............................................................  $  
Accounts payable ......................................................................................... 
Accrued payroll and related costs................................................................. 
Taxes payable ............................................................................................... 
Interest payable............................................................................................. 
Other current liabilities................................................................................. 
Total current liabilities...................................................................................... 

Long-term debt ................................................................................................. 
Deferred income taxes ...................................................................................... 
Other liabilities ................................................................................................. 
Total liabilities ........................................................................................ 

80,213  $  

374,559 
120,634 
13,066 
40,260 
83,759 
712,491 

2,686,484 
258,822 
268,026 
3,925,823 

8,666,750 
115,414 
8,782,164 
(2,175,775) 
6,606,389 

279,139 
8,358,413 

— 
197,712 
99,372 
61,577 
11,258 
55,988 
425,907 

750,946 
300,231 
123,137 
1,600,221 

Commitments and contingencies 

Shareholder equity 

Ordinary shares; 261,246 shares outstanding ............................................... 
Capital in excess of par value ....................................................................... 
Retained earnings ......................................................................................... 
Accumulated other comprehensive loss ....................................................... 
Total shareholder equity ........................................................................ 

26,125 
416,232 
6,743,887 
(50,220) 
7,136,024 

26,125 
395,628 
6,391,320 
(54,881) 
6,758,192 

Noncontrolling interests ............................................................................... 

124,631 

— 

Total equity ............................................................................................. 

7,260,655 

6,758,192 

Total liabilities and equity .....................................................................  $   11,186,478  $  

8,358,413 

See accompanying notes to the consolidated financial statements. 

60 

 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF INCOME 
(In thousands, except per share amounts) 

Year Ended December 31, 
2009 

2010 

2008 

Operating revenues 

Contract drilling services...................................................................   $  2,695,493  $  3,509,755  $  3,298,850 
90,849 
Reimbursables ...................................................................................  
55,078 
Labor contract drilling services .........................................................  
Other..................................................................................................  
1,724 
  3,446,501 

76,831 
32,520 
2,332 
  2,807,176 

99,201 
30,298 
1,157 
  3,640,411 

Operating costs and expenses 

Contract drilling services...................................................................  
Reimbursables ...................................................................................  
Labor contract drilling services .........................................................  
Depreciation and amortization...........................................................  
Selling, general and administrative ...................................................  
(Gain)/loss on asset disposal/involuntary conversion, net.................  

  1,172,801 
59,414 
22,056 
539,004 
55,568 
— 
  1,848,843 

  1,006,764 
85,035 
18,827 
408,313 
58,543 
30,839 
  1,608,321 

  1,011,882 
79,327 
42,573 
356,658 
74,143 
(26,485) 
  1,538,098 

Operating income ................................................................................  

958,333 

  2,032,090 

  1,908,403 

Other income (expense) 

Interest expense, net of amount capitalized .......................................  
Interest income and other, net............................................................  
Income before income taxes ................................................................  
Income tax provision .........................................................................  
Net income ............................................................................................  

Net income attributable to noncontrolling interests...........................  
Net income attributable to Noble Corporation .................................   $ 

(9,457)   
8,527 
957,403 
(141,866)   
815,537 

(1,685)   
6,810 
  2,037,215 

(336,834)   

  1,700,381 

(4,388) 
8,443 
  1,912,458 
(351,463) 
  1,560,995 

(3)   

— 
815,534  $  1,700,381  $  1,560,995 

— 

See accompanying notes to the consolidated financial statements. 

61 

 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF CASH FLOWS 
(In thousands) 

Cash flows from operating activities 

Net income ....................................................................................   $ 
Adjustments to reconcile net income to net cash from operating 

activities: 
Depreciation and amortization...................................................  
Loss/(Gain) on disposal of assets, net........................................  
Deferred income tax provision ..................................................  
Share-based compensation ........................................................  
Capital contribution by parent — share-based compensation ...  
Pension contributions ................................................................  

Other changes in assets and liabilities: 

Year ended December 31, 
2009 

2008 

2010 

815,537  $  1,700,381  $  1,560,995 

539,004 
— 

(41,409)   

— 
20,604 
(16,464)   

408,313 
30,839 
36,866 
8,399 
27,254 
(17,639)   

356,658 
(26,485) 
51,026 
35,899 
— 
(21,439) 

Accounts receivable...................................................................  
Other current assets ...................................................................  
Other assets................................................................................  
Accounts payable.......................................................................  
Other current liabilities..............................................................  
Other liabilities ..........................................................................  
Net cash from operating activities .........................................  

343,844 
5,329 
15,971 
(44,105)   
9,798 
28,258 
1,676,367 

(48,839)   
(16,686)   
3,704 
11,558 
(10,318)   
14,803 
2,148,635 

(31,725) 
(18,237) 
8,575 
2,490 
(19,620) 
(9,945) 
1,888,192 

Cash flows from investing activities 

New construction...........................................................................  
Other capital expenditures .............................................................  
Major maintenance expenditures...................................................  
Accrued capital expenditures.........................................................  
Hurricane insurance receivables....................................................  
Proceeds from disposal of assets ...................................................  
Acquisition of FDR Holdings, Ltd., net of cash acquired .............  
Net cash from investing activities..........................................  

Cash flows from financing activities 

Borrowings on bank credit facilities..............................................  
Payments on bank credit facilities .................................................  
Proceeds from issuance of notes to joint venture partner ..............  
Proceeds from issuance of senior notes, net of debt issuance 

costs.............................................................................................  
Payments of other long-term debt .................................................  
Settlement of interest rate swaps ...................................................  
Distributions to parent ...................................................................  
Net proceeds from employee stock transactions............................  
Tax benefit of employee stock transactions...................................  
Proceeds from issuance of senior notes, net of debt issuance 

costs.............................................................................................  
Dividends paid...............................................................................  
Repurchases of ordinary shares .....................................................  
Net cash from financing activities .........................................  
Net (decrease) increase in cash and cash equivalents ............  
Cash and cash equivalents, beginning of period ...........................  
Cash and cash equivalents, end of period......................................   $ 

— 
— 
— 
843,921 
(392,826)   
726,225 
333,399  $ 

(653,269)   
(665,844)   
(103,542)   
139,185 
— 
— 

(1,629,644)   
(2,913,114)   

(717,148)   
(566,894)   
(119,393)   
(63,561)   

— 
— 
— 

(1,466,996)   

(799,736) 
(323,955) 
(107,630) 
40,830 
21,747 
39,451 
— 
(1,129,293) 

40,000 
— 
35,000 

1,238,074 
— 
(6,186)   
(462,967)   

— 
— 

— 
— 
— 

— 

(172,700)   

— 

(218,258)   
(6,430)   
— 

— 

(10,470)   
(60,867)   
(468,725)   
212,914 
513,311 
726,225  $ 

30,000 
(130,000) 
— 

— 
(10,335) 
— 
— 
9,304 
3,467 

249,238 
(244,198) 
(314,122) 
(406,646) 
352,253 
161,058 
513,311 

See accompanying notes to the consolidated financial statements. 

62 

 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF EQUITY 
(In thousands) 

Shares 
 Balance    Par Value  

  Capital in 
  Excess of   
  Par Value   

  Retained 
  Earnings 

 Non-controlling  
Interests 

 Accumulated 
Other 
Comprehensive  
Loss 

Total 
  Equity 

Balance at January 1, 2008 

 268,223  $ 

26,822  $ 

683,697  $  3,602,870  $   

—  $   

(5,067)  $  4,308,322 

Balance at December 31, 2008 .......    261,899  $ 

26,190  $ 

402,115  $  4,919,667  $   

—  $   

(57,257)  $  5,290,715 

Share-based compensation 

Share-based compensation .....    
Contribution to employee 

benefit plans.........................    
Exercise of stock options........    
Tax benefit of stock options 

exercised ..............................    
Restricted shares 
surrendered for 
withholding taxes or 
forfeited................................    

1,176 

10 
1,008 

— 

117   

35,782 

1   
102   

629 
19,339 

—   

3,467 

— 

— 
— 

— 

(553)   
Repurchases of ordinary shares.......    (7,965)   
Net income .................................    
Dividends paid ($0.91 per 

— 

Share).......................................    

Other comprehensive income 

(loss), net..................................    

— 

— 

(56)   
(796)   
—   

—   

—   

(10,081)   
(330,718)   

— 

— 

— 

— 
— 
1,560,995 

(244,198)   

— 

Share-based compensation 

Share-based compensation .....    
Contribution to employee 

benefit plans.........................    
Exercise of stock options........    
Tax benefit of stock options 

exercised ..............................    
Restricted shares 
surrendered for 
withholding taxes or 
forfeited................................    

(285)   
Repurchases of ordinary shares.......    (1,720)   
Net income .................................    
Dividends/par value reduction 
payments paid ($0.04 per 
share) .......................................    

— 

— 

Distributions to parent................    
Capital contributions by parent 

— share-based compensation...    

Other comprehensive income 

1,331 

133   

8,266 

6 
15 

— 

1   
2   

152 
145 

—   

6,533 

— 

— 
— 

(29)   
(172)   
—   

—   

(5,534)   
(43,303)   

— 

— 

— 
— 
1,700,381 

(10,470)   

(218,258)   

27,254 

— 

— 
— 

— 

— 
— 
— 

— 

— 

— 

— 
— 

— 

— 
— 
— 

— 

35,899 

630 
19,441 

3,467 

(10,137) 
(331,514) 
1,560,995 

(244,198) 

(52,190)   

(52,190) 

— 

— 
— 

— 
— 
— 

— 

— 

— 
— 

— 

— 
— 
— 

— 

8,399 

153 
147 

6,533 

(5,563) 
(43,475) 
1,700,381 

(10,470) 

(218,258) 

27,254 

(loss), net..................................    

— 

—   

— 

— 

— 

2,376 

2,376 

Balance at December 31, 2009 .......    261,246  $ 

26,125  $ 

395,628  $  6,391,320  $   

—  $   

(54,881)  $  6,758,192 

Distributions to parent................    
Capital contributions by parent 

— share-based compensation...    
Net income .................................    
Noncontrolling interests from 

FDR Holdings, Ltd. 
acquisition................................    

Other comprehensive income 

— 

— 

—   

— 

(462,967)   

—   

20,604 
— 

815,534 

— 

3 

124,628 

— 

(462,967) 

— 

— 

20,604 
815,537 

124,628 

(loss), net..................................    

— 

—   

— 

— 

— 

4,661 

4,661 

Balance at December 31, 2010 .......    261,246  $ 

26,125  $ 

416,232  $  6,743,887  $   

124,631  $   

(50,220)  $  7,260,655 

See accompanying notes to the consolidated financial statements. 

63 

 
 
 
  
  
  
  
 
 
  
  
  
 
  
  
 
  
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME 
(In thousands) 

Year Ended December 31, 

  2010 

2009 

2008 

Net income ...............................................................................................   $  815,537  $  1,700,381  $  1,560,995 

Other comprehensive income (loss), net of tax 

Foreign currency translation adjustments .........................................  
Gain (loss) on foreign currency forward contracts ...........................  
Gain (loss) on interest rate swaps .....................................................  
Net pension plan gain (loss) (net of a tax benefit of $2,888 in 2010, 
$1,635 in 2009 and $16,630 in 2008) .............................................  

Amortization of deferred pension plan amounts (net of tax 

2,456 
1,187 
366 

277 
417 
— 

(19,095) 
(2,219) 
— 

(1,898)   

(1,424)   

(31,806) 

provision of $1,286 in 2010, $653 in 2009 and $413 in 2008 ........  
Other comprehensive income (loss), net ..............................................  

2,550 
4,661 

3,106 
2,376 

930 
(52,190) 

Total comprehensive income................................................................  

  820,198 

  1,702,757 

  1,508,805 

Less: Net income attributable to noncontrolling interests ........................  

(3)   

Less: Noncontrolling portion of gain on interest rate swaps.....................  

(183)   

— 

— 

— 

— 

Comprehensive income attributable to Noble Corporation................   $  820,012  $  1,702,757  $  1,508,805 

See accompanying notes to the consolidated financial statements. 

64 

 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Note 1 — Organization and Significant Accounting Policies  

Organization and Business 

Noble Corporation, a Swiss corporation, is a leading offshore drilling contractor for the oil and gas industry. We 
perform  contract  drilling  services  with  our  fleet  of  73  mobile  offshore  drilling  units  and  one  floating  production 
storage and offloading unit (“FPSO”) located worldwide. Our fleet consists of 14 semisubmersibles, 12 drillships, 
45  jackups  and  two  submersibles.  Our  fleet  includes  eight  units  under  construction:  two  dynamically  positioned, 
ultra-deepwater, harsh environment Globetrotter-class drillships, two dynamically positioned, ultra-deepwater, harsh 
environment Bully-class drillships, two harsh environment jackup rigs announced in December 2010 and two ultra-
deepwater drillships announced in January 2011. As of January 19, 2011, approximately 81 percent of our fleet was 
located outside the United States in the following areas: Middle East, India, Mexico, the Mediterranean, the North 
Sea, Brazil, West Africa and Asian Pacific. Noble and its predecessors have been engaged in the contract drilling of 
oil and gas wells since 1921. 

Consummation of Migration and Worldwide Internal Restructuring 

On March 26, 2009, we completed a series of transactions that effectively changed the place of incorporation of 
our  parent  holding  company  from  the  Cayman  Islands  to  Switzerland.  As  a  result  of  these  transactions,  Noble-
Cayman,  the  previous  publicly  traded  Cayman  Islands  parent  holding  company,  became  a  direct,  wholly-owned 
subsidiary of Noble-Swiss, the current parent company. Noble-Swiss’ principal asset is all of the shares of Noble-
Cayman. The consolidated financial statements of Noble-Swiss include the accounts of Noble-Cayman, and Noble-
Swiss conducts substantially all of its business through Noble-Cayman and its subsidiaries. In connection with this 
transaction,  we  relocated  our  principal  executive  offices,  executive  officers  and  selected  personnel  to  Geneva, 
Switzerland. 

Principles of Consolidation 

The  consolidated  financial  statements  include  our  accounts  and  those  subsidiaries  either  wholly-owned  or 

entities in which we hold a controlling financial interest. 

The Financial Accounting Standards Board (“FASB”) issued authoritative guidance for noncontrolling interests 
in  December  2007,  which  establishes  accounting  and  reporting  standards  for  the  noncontrolling  interest  in  a 
subsidiary  and  for  the  deconsolidation  of  a  subsidiary.  The  guidance  clarifies  that  a  noncontrolling  interest  in  a 
subsidiary,  which  is  sometimes  referred  to  as  an  unconsolidated  investment,  is  an  ownership  interest  in  the 
consolidated  entity  that  should  be  reported  as  a  component  of  equity  in  the  consolidated  financial  statements. 
Among other requirements, the guidance requires consolidated net income to be reported at amounts attributable to 
both the parent and the  noncontrolling interest. It also requires disclosure, on the  face of the consolidated income 
statement, of the amounts of consolidated net income attributable to the parent and to the noncontrolling interest. We 
adopted the provisions of the FASB guidance on January 1, 2009 and applied the provisions retrospectively, with no 
material impact. 

Our 2010 consolidated financial statements include the accounts of two 50 percent joint ventures where we hold 
a  variable  interest  as  defined  under  FASB  codification  where  we  have  determined  that  we  are  the  primary 
beneficiary. Intercompany balances and transactions have been eliminated in consolidation. 

65 

 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Foreign Currency Translation 

Although we are a Swiss corporation, we define foreign currency as any non-U.S. denominated currency. In non-
U.S. locations where the U.S. Dollar has been designated as the functional currency (based on an evaluation of such 
factors as the markets in which the subsidiary operates, inflation, generation of cash flow, financing activities and 
intercompany  arrangements),  local  currency  transaction  gains  and  losses  are  included  in  net  income.  In  non-U.S. 
locations  where  the  local  currency  is  the  functional  currency,  assets  and  liabilities  are  translated  at  the  rates  of 
exchange  on  the  balance  sheet  date,  while  income  and  expense  items  are  translated  at  average  rates  of  exchange 
during the year. The resulting gains or losses arising from the translation of accounts from the functional currency to 
the  U.S.  Dollar  are  included  in  “Accumulated  other  comprehensive  income  (loss)”  in  the  Consolidated  Balance 
Sheets. We did not recognize any material gains or losses on foreign currency transactions or translations during the 
years  ended  December  31,  2010,  2009  and  2008.  We  use  the  Canadian  Dollar  as  the  functional  currency  for  our 
labor contract drilling services in Canada. 

Cash and Cash Equivalents 

Cash and cash equivalents include cash on hand, demand deposits with banks and all highly liquid investments 
with original maturities of three months or less. Our cash, cash equivalents and short-term investments are subject to 
potential credit risk, and certain of our cash accounts carry balances greater than the federally insured limits. Cash 
and cash equivalents are held by major banks or investment firms. Our cash management and investment policies 
restrict investments to lower risk, highly liquid securities and we perform periodic evaluations of the relative credit 
standing of the financial institutions with which we conduct business. 

In  accordance  with  FASB  standards,  cash  flows  from  our  labor  contract  drilling  services  in  Canada  are 
calculated  based  on  the  Canadian  Dollar.  As  a  result,  amounts  related  to  assets  and  liabilities  reported  on  the 
Consolidated Statements of Cash Flows will not necessarily agree with changes in the corresponding balances on the 
Consolidated Balance Sheets. The effect of exchange rate changes on cash balances held in foreign currencies was 
not material in 2010, 2009 or 2008. 

Investments in Marketable Securities 

Investments in marketable securities held at December 31, 2010 and 2009 were classified as trading securities 
and carried at fair value in “Other Current Assets” with the unrealized gain or loss included in “Other Income” in the 
accompanying Consolidated Statements of Income. 

Property and Equipment 

Property  and  equipment  is  stated  at  cost,  reduced  by  provisions  to  recognize  economic  impairment  in  value 
whenever  events  or  changes  in  circumstances  indicate  an  asset’s  carrying  value  may  not  be  recoverable.  At  both 
December 31, 2010 and 2009, there was $3.6 billion and $2.3 billion of construction-in-progress, respectively. Such 
amounts  are  included  in  “Drilling  equipment  and  facilities”  in  the  accompanying  Consolidated  Balance  Sheets. 
Major replacements and improvements are capitalized. When assets are sold, retired or otherwise disposed of, the 
cost  and  related  accumulated  depreciation  are  eliminated  from  the  accounts  and  the  gain  or  loss  is  recognized. 
Drilling equipment and facilities are depreciated using the straight-line method over their estimated useful lives as of 
the  date  placed  in  service  or  date  of  major  refurbishment.  Estimated  useful  lives  of  our  drilling  equipment  range 
from three to thirty  years. Other property and equipment is depreciated using the straight-line  method over useful 
lives  ranging  from  two  to  twenty-five  years.  Included  in  accounts  payable  was  $161  million  and  $47  million  of 
capital accruals as of December 31, 2010 and 2009, respectively. 

Interest is capitalized on construction-in-progress at the interest rate on debt incurred for construction or at the 
weighted average cost of debt outstanding during the period of construction. Capitalized interest for the years ended 
December 31, 2010, 2009 and 2008 was $83 million, $55 million and $48 million, respectively. 

66 

 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Overhauls  and  scheduled  maintenance  of  equipment  are  performed  based  on  the  number  of  hours  operated  in 
accordance  with  our  preventative  maintenance  program.  Routine  repair  and  maintenance  costs  are  charged  to 
expense  as  incurred;  however,  the  costs  of  the  overhauls  and  scheduled  major  maintenance  projects  that  benefit 
future periods and which typically occur every three to five years are deferred when incurred and amortized over an 
equivalent  period.  The  deferred  portion  of  these  major  maintenance  projects  is  included  in  “Other  Assets”  in  the 
Consolidated Balance Sheets. Such amounts totaled $183 million and $181 million at December 31, 2010 and 2009, 
respectively. 

Amortization of deferred costs for major maintenance projects is reflected in “Depreciation and amortization” in 
the  accompanying  Consolidated  Statements  of  Income.  The  amount  of  such  amortization  was  $107  million,  $102 
million  and  $91  million  for  the  years  ended  December  31,  2010,  2009  and  2008,  respectively.  Total  repair  and 
maintenance expense for the years ended December 31, 2010, 2009 and 2008, exclusive of amortization of deferred 
costs for major maintenance projects, was $186 million, $175 million and $169 million, respectively. 

We  evaluate  the  realization  of  property  and  equipment  whenever  events  or  changes  in  circumstances  indicate 
that  the  carrying  amount  of  an  asset  may  not  be  recoverable.  An  impairment  loss  on  our  property  and  equipment 
exists  when  estimated  undiscounted  cash  flows  expected  to  result  from  the  use  of  the  asset  and  its  eventual 
disposition are less than its carrying amount.  Any impairment loss recognized represents the excess of the asset’s 
carrying value over the estimated fair value. 

In  May  2009,  our  jackup,  the  Noble  David  Tinsley,  experienced  a  “punch-through”  while  the  rig  was  being 
positioned on location offshore Qatar. The incident involved the sudden penetration of all three legs through the sea 
bottom,  which resulted in severe damage to the legs and the rig. We recorded a charge of $17 million during the 
quarter ended June 30, 2009 related to this involuntary conversion, which includes approximately $9 million for the 
write-off of the damaged legs. 

During  the  first  quarter  of  2009,  we  recognized  a  charge  of  $12  million  related  to  the  Noble  Fri  Rodli,  a 
submersible  that  has  been  cold  stacked  since  October  2007.  We  recorded  the  charge  as  a  result  of  a  decision  to 
evaluate disposition alternatives for this rig. 

Deferred Costs 

Deferred debt issuance costs  are being amortized over the  life of the debt securities. The amortization of debt 

issuance costs is included in interest expense. 

Insurance Reserves 

We maintain various levels of self-insured retention for certain losses including property damage, loss of hire, 
employment  practices  liability,  employers’  liability,  and  general  liability,  among  others.  We  accrue  for  property 
damage and loss of hire charges on a per event basis. 

Employment practices liability claims are accrued based on actual claims during the year. Maritime employer’s 
liability claims are generally estimated using actuarial determinations. General liability claims are estimated by our 
internal  claims  department  by  evaluating  the  facts  and  circumstances  of  each  claim  (including  incurred  but  not 
reported claims) and making estimates based upon historical experience with similar claims. At December 31, 2010 
and 2009, loss reserves for personal injury and protection claims totaled $21 million and $23 million, respectively, 
and such amounts are included in “Other current liabilities” in the accompanying Consolidated Balance Sheets. 

Revenue Recognition 

Revenues generated from our dayrate-basis drilling contracts and labor contracts are recognized as services are 

performed. 

67 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

We may receive lump-sum fees for the mobilization of equipment and personnel. Mobilization fees received and 
costs  incurred  to  mobilize  a  drilling  unit  from  one  market  to  another  are  recognized  over  the  term  of  the  related 
drilling contract. Costs incurred to relocate drilling units to more promising geographic areas in which a contract has 
not  been  secured  are  expensed  as  incurred.  Lump-sum  payments  received  from  customers  relating  to  specific 
contracts,  including  equipment  modifications,  are  deferred  and  amortized  to  income  over  the  term  of  the  drilling 
contract.  Deferred  revenues  under  drilling  contracts  totaled  $104  million  at  December  31,  2010,  including  $65 
million in fair value contract adjustments in connection with our acquisition of FDR Holdings Ltd. discussed in Note 
2, as compared to $32 million at December 31 2009. Such amounts are included in either “Other Current Liabilities” 
or  “Current  Liabilities”  in  our  Consolidated  Balance  Sheets,  based  upon  our  expected  time  of  recognition.  As 
discussed in Note 19 “Subsequent Events,” in connection with the cancelation of the contract on the Noble Phoenix, 
we  recognized  a  non-cash  gain  of  approximately  $55  million  in  the  first  quarter  of  2011  which  represented  the 
unamortized balance of the contract’s fair value adjustment. 

We record reimbursements from customers for “out-of-pocket” expenses as revenues and the related direct cost 
as operating expenses. Reimbursements for loss of hire under our insurance coverages are included in “(Gain)/loss 
on assets disposal/involuntary conversion, net” in the Consolidated Statements of Income. 

Income Taxes 

Income taxes have been provided based on the laws and rates in effect in the countries in which operations are 
conducted or in which we or our subsidiaries are considered resident for income tax purposes. Applicable income 
and  withholding  taxes  have  not  been  provided  on  undistributed  earnings  of  our  subsidiaries.  We  do  not  intend  to 
repatriate  such  undistributed  earnings  for  the  foreseeable  future  except  for  distributions  upon  which  incremental 
income  and  withholding  taxes  would  not  be  material.  In  certain  circumstances,  we  expect  that,  due  to  changing 
demands of the offshore drilling markets and the ability to redeploy our offshore drilling units, certain of such units 
will not reside in a location long enough to give rise to future tax consequences. As a result, no deferred tax asset or 
liability has been recognized in these circumstances. Should our expectations change regarding the length of time an 
offshore drilling unit will be used in a given location, we will adjust deferred taxes accordingly. 

We operate through various subsidiaries in numerous countries throughout the world including the United States. 
Consequently,  we  are  subject  to  changes  in  tax  laws,  treaties  or  regulations  or  the  interpretation  or  enforcement 
thereof in the U.S., Switzerland or jurisdictions in  which we or any of our subsidiaries operate or is resident. Our 
income tax expense is based upon our interpretation of the tax laws in effect in various countries at the time that the 
expense  was  incurred.  If  the  U.S.  Internal  Revenue  Service  or  other  taxing  authorities  do  not  agree  with  our 
assessment  of  the  effects  of  such  laws,  treaties  and  regulations,  this  could  have  a  material  adverse  effect  on  us 
including  the  imposition  of  a  higher  effective  tax  rate  on  our  worldwide  earnings  or  a  reclassification  of  the  tax 
impact of our significant corporate restructuring transactions. 

Net Income per Share 

According  to  FASB  standards,  we  have  determined  that  our  unvested  share-based  payment  awards,  which 
contain non-forfeitable rights to dividends, are participating securities and should be included in the computation of 
earnings  per  share  pursuant  to  the  “two-class”  method.  The  “two-class”  method  allocates  undistributed  earnings 
between  common  shares  and  participating  securities.  The  diluted  earnings  per  share  calculation  under  the  “two-
class” method also includes the dilutive effect of potential registered shares issued in connection with stock options. 
The dilutive effect of stock options is determined using the treasury stock method. Our adoption of the “two-class” 
method for calculating earnings per share did not have a material impact on prior year earnings per share amounts. 

Share-Based Compensation Plans 

We account for share-based compensation pursuant to FASB standards. Accordingly, we record the grant date 
fair  value  of  share-based  compensation  arrangements  as  compensation  cost  using  a  straight-line  method  over  the 
service  period.  Share-based  compensation  is  expensed  or  capitalized  based  on  the  nature  of  the  employee’s 
activities. 

68 

 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Certain Significant Estimates 

The  preparation  of  financial  statements  in  conformity  with  accounting  principles  generally  accepted  in  the 
United States of America requires management to make estimates and assumptions that affect the reported amounts 
of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and 
the  reported  amount  of  revenues  and  expenses  during  the  reporting  period.  Certain  accounting  policies  involve 
judgments and uncertainties to such an extent  that there is reasonable likelihood that  materially different amounts 
could  have  been  reported  under  different  conditions,  or  if  different  assumptions  had  been  used.  We  evaluate  our 
estimates  and  assumptions  on  a  regular  basis.  We  base  our  estimates  on  historical  experience  and  various  other 
assumptions  that  are  believed  to  be  reasonable  under  the  circumstances,  the  results  of  which  form  the  basis  for 
making  judgments  about  carrying  values  of  assets  and  liabilities  that  are  not  readily  apparent  from  other  sources. 
Actual  results  may  differ  from  these  estimates  and  assumptions  used  in  preparation  of  our  consolidated  financial 
statements. 

Reclassifications 

Certain reclassifications have been made to amounts in prior period financial statements to conform to current 
period presentations. We believe these reclassifications are immaterial as they do not have a material impact on our 
financial position, results of operations or cash flows. 

Accounting Pronouncements 

In  June  2009,  the  FASB  issued  guidance  which  expanded  disclosures  that  a  reporting  entity  provides  about 
transfers  of  financial  assets  and  its  effect  on  the  financial  statements.  This  guidance  is  effective  for  annual  and 
interim reporting periods beginning after November 15, 2009. The adoption of this guidance did not have a material 
impact on our financial condition, results of operations, cash flows or financial disclosures. 

Also in June 2009, the FASB issued guidance that revises how an entity evaluates variable interest entities. This 
guidance is effective for annual and interim reporting periods beginning after November 15, 2009. The adoption of 
this guidance did not have a material impact on our financial condition, results of operations, cash flows or financial 
disclosures. 

In  October  2009,  the  FASB  issued  guidance  that  impacts  the  recognition  of  revenue  in  multiple-deliverable 
arrangements. The guidance establishes a selling-price hierarchy for determining the selling price of a deliverable. 
The  goal  of  this  guidance  is  to  clarify  disclosures  related  to  multiple-deliverable  arrangements  and  to  align  the 
accounting  with  the  underlying  economics  of  the  multiple-deliverable  transaction.  This  guidance  is  effective  for 
fiscal years beginning on or after June 15, 2010. We are in the process of evaluating this guidance but do not believe 
this  guidance  will have a  material impact on our financial condition, results of operations, cash flows or financial 
disclosures. 

In January 2010, the FASB issued guidance relating to the disclosure of the fair value of assets. This guidance 
calls  for  additional  information  to  be  given  regarding  the  transfer  of  items  in  and  out  of  respective  categories.  In 
addition,  it  requires  additional  disclosures  regarding  purchases,  sales,  issuances,  and  settlements  of  assets  that  are 
classified as level three  within the FASB fair value hierarchy. This guidance is generally effective for annual and 
interim  periods  ending  after  December  15,  2009.  However,  the  disclosures  about  purchases,  sales,  issuances  and 
settlements in the roll-forward activity in level three fair value measurements is deferred until fiscal years beginning 
after December 15, 2010. These additional disclosures did not have and are not expected to have a material impact 
on our financial condition, results of operations, cash flows or financial disclosures. 

In  February  2010,  the  FASB  issued  guidance  that  clarifies  the  disclosure  of  subsequent  events  for  SEC 
registrants. Under this guidance an SEC registrant can disclose that the company has considered subsequent events 
through the date of filing with the SEC as opposed to specifically stating the date to which subsequent events were 
considered. This guidance is effective upon the issuance of the guidance. Our adoption of this guidance did not have 
a material impact on our financial condition, results of operations, cash flows or financial disclosures. 

69 

 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

In  April  2010,  the  FASB  issued  guidance  that  codifies  the  need  for  disclosure  relating  to  the  disallowance  of 
various credits as a result of the passage of both the Health Care and Education Reconciliation Act of 2010 and the 
Patient Protection and Affordable Care Act, which were signed into law in March 2010. The passage of these acts 
did not have an impact on our financial condition, results of operations, cash flows or financial disclosures. 

In December 2010, the FASB issued guidance that requires a public entity to disclose pro forma information for 
business combinations that occurred in the current reporting period. The disclosures include pro forma revenue and 
earnings  of  the  combined  entity  for  the  current  reporting  period  as  though  the  acquisition  date  for  all  business 
combinations  that  occurred  during  the  year  had  been  as  of  the  beginning  of  the  annual  reporting  period.  If 
comparative financial statements are presented, the pro forma revenue and earnings of the combined entity for the 
comparable prior reporting period should be reported as though the acquisition date for  all business combinations 
that occurred during the current year had been as of the beginning of the comparable prior annual reporting period. 
The  guidance  is  effective  for  annual  reporting  periods  beginning  on  or  after  December  15,  2010.  We  do  not 
anticipate the adoption of this guidance to have a material impact on our financial condition, results of operations, 
cash flows or financial disclosures. 

Note 2 — Acquisition of FDR Holdings Limited  

On  July  28,  2010,  Noble-Swiss  and  Noble  AM  Merger  Co.,  a  Cayman  Islands  company  and  indirect  wholly-
owned subsidiary of Noble-Swiss (“Merger Sub”), completed the acquisition of FDR Holdings Limited, a Cayman 
Islands company (“Frontier”). Under the terms of the  Agreement and Plan of Merger  with Frontier and certain of 
Frontier’s shareholders, Merger Sub merged with and into Frontier, with Frontier surviving as an indirect wholly-
owned subsidiary of Noble-Swiss and a wholly-owned subsidiary of Noble-Cayman. The Frontier acquisition was 
for  a  purchase  price  of  approximately  $1.7  billion  in  cash  plus  liabilities  assumed  and  strategically  expanded  and 
enhanced our global fleet by adding three dynamically positioned drillships (including two Bully-class joint venture-
owned  drillships  under  construction),  two  conventionally  moored  drillships,  including  one  that  is  Arctic-class,  a 
conventionally  moored  deepwater  semisubmersible  and  one  dynamically  positioned  FPSO  to  our  fleet.  Frontier’s 
results of operations were included in our results beginning July 28, 2010. We funded the cash consideration paid at 
closing of approximately $1.7 billion using proceeds from our July 2010 offering of senior notes and existing cash 
on hand. 

The  following  table  summarizes  our  allocation  of  the  purchase  price  to  the  estimated  fair  values  of  the  assets 

acquired and liabilities assumed on the acquisition date of July 28, 2010: 

ASSETS 

Cash and cash equivalents .................................................................................................................   $ 
Accounts receivable, net of $2,111 reserve .......................................................................................  
Other current assets ...........................................................................................................................  
Other assets........................................................................................................................................  
Drilling equipment ............................................................................................................................  
Value of in-place contracts ................................................................................................................  

77,375 
51,541 
11,296 
11,469 
2,527,148 
77,260 
Total assets acquired..............................................................................................................................   $  2,756,089 

  Fair value   

LIABILITIES 

81,767 
Accounts payable ..............................................................................................................................   $ 
32,860 
Other current liabilities......................................................................................................................  
688,748 
Consolidated joint ventures credit facilities ......................................................................................  
36,824 
Other liabilities ..................................................................................................................................  
124,628 
Non-controlling interests ...................................................................................................................  
84,243 
Value of in-place contracts ................................................................................................................  
Total liabilities assumed ........................................................................................................................  
   1,049,070 
Cash consideration paid.........................................................................................................................   $  1,707,019 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

The fair value of cash and cash equivalents, accounts receivable, other current assets, accounts payable and other 
current  liabilities  was  generally  determined  using  historical  carrying  values  given  the  short  term  nature  of  these 
items. The fair values of drilling equipment, in-place contracts and noncontrolling interests were determined using 
management’s  estimates  of  future  net  cash  flows.  Such  estimated  future  cash  flows  were  discounted  at  an 
appropriate  risk-adjusted  rate  of  return.  The  fair  values  of  the  consolidated  joint  venture  credit  facilities  and 
derivatives were determined based on a discounted cash flow model utilizing an appropriate market or risk-adjusted 
yield. The fair value of other assets and other liabilities, related to long-term tax items, was derived using estimates 
made by management. Fair value estimates for in-place contracts are located in “Other assets” and “Other liabilities” 
in  our  Consolidated  Balance  Sheet  and  will  be  amortized  over  the  life  of  the  respective  contract.  The  weighted 
average life of those contracts totaled approximately 3.0 years as of the date of the acquisition. 

As  our  allocation  is  final,  any  adjustment  to  the  fair  value  of  assets  acquired  and  liabilities  assumed,  will  be 

directly recorded in earnings. We currently do not anticipate any further changes to the purchase price allocation. 

As of December 31, 2010, we have incurred $19 million in acquisition costs related to the Frontier acquisition. 

These costs have been expensed and are included in contract drilling services expense. 

The following unaudited pro forma financial information for the year ended December 31, 2010 and 2009, gives 
effect  to  the  Frontier  acquisition  as  if  it  had  occurred  at  the  beginning  of  the  periods  presented.  The  pro  forma 
financial information for the year ended December 31, 2010 includes pro forma results for the period prior to the 
closing date of July 28, 2010 and actual results for the period from July 28, 2010 through December 31, 2010. The 
pro forma results are based on historical data and are not intended to be indicative of the results of future operations. 

Total operating revenues.................................................................................................   $  2,985,439  $  3,965,457 
1,674,722 
Net income to Noble Corporation...................................................................................  
6.40 
Net income per share (Diluted).......................................................................................   $ 

716,875   

2.80  $ 

2010 

2009 

Revenues from the Frontier rigs totaled $147 million from the closing date of July 28, 2010 through December 

31, 2010. Operating expenses for this same period totaled $98 million for the Frontier rigs. 

Consolidated joint ventures 

In connection with the Frontier acquisition, we acquired Frontier’s 50 percent interest in two joint ventures, each 
with  a  subsidiary  of  Royal  Dutch  Shell,  PLC  (“Shell”),  for  the  construction  and  operation  of  the  two  Bully-class 
drillships.  Since  these  entities’  equity  at  risk  is  insufficient  to  permit  them  to  carry  on  their  activities  without 
additional  subordinated  financial  support,  they  each  meet  the  criteria  for  a  variable  interest  entity.  We  have 
determined that we are the primary beneficiary for accounting purposes. Our determination is based on our ability to 
effectively control the principal activities of the entity as the primary maker of operational decisions. Additionally, 
we receive a management fee to oversee the construction of, and to manage the operation and maintenance of, the 
drillships, which is deemed a preference payment under current accounting literature. Accordingly, we consolidate 
the entities in our consolidated financial statements, eliminate intercompany transactions. The equity interest that is 
not owned by us is presented as noncontrolling interests on our Consolidated Balance Sheets. 

Amounts related to these two joint ventures at December 31, 2010, include the combined carrying amount of the 
drillships owned by the joint ventures of $869 million and total outstanding debt of $691 million, which excludes 
$72  million  of  joint  venture  partner  notes.  Our  portion  of  these  joint  venture  partner  notes,  which  totaled  $36 
million, has been eliminated in our Consolidated Balance Sheets. As discussed in Note 7 – “Debt,” the outstanding 
balances  of  the  joint  ventures’  credit  facilities  were  repaid  in  full  and  the  credit  facilities  terminated  in  February 
2011. 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Note 3 — Earnings per Share  

Our  unvested  share-based  payment  awards,  which  include  restricted  shares  and  restricted  units  are  considered 
participating securities as they contain non-forfeitable rights to dividends and should be included in the computation 
of earnings per share pursuant to the “two-class” method. The “two-class” method allocates undistributed earnings 
between  common  shares  and  participating  securities.  The  diluted  earnings  per  share  calculation  under  the  “two-
class”  method  also  includes  the  dilutive  effect  of  potential  share  issuances  in  connection  with  stock  options.  The 
dilutive  effect  of  stock  options  is  determined  using  the  treasury  stock  method.  The  following  table  sets  forth  the 
computation of basic and diluted net income per share for Noble-Swiss: 

Year Ended December 31, 

2010 

2009 

2008 

Allocation of net income 

Basic 

Net income  attributable to Noble Corporation.............................   $  773,429  $  1,678,642  $  1,560,995 
Earnings allocated to unvested share-based payment awards.......  
(13,195) 
Net income — basic ................................................................   $  765,932  $  1,661,831  $  1,547,800 

(16,811)   

(7,497)   

Diluted 

Net income  attributable to Noble Corporation.............................   $  773,429  $  1,678,642  $  1,560,995 
(13,131) 
Earnings allocated to unvested share-based payment awards.......  
Net income — diluted .............................................................   $  765,948  $  1,661,884  $  1,547,864 

(16,758)   

(7,481)   

Weighted average shares outstanding — basic................................  

Incremental shares issuable from assumed exercise of stock 

  253,123 

258,035 

264,782 

options ............................................................................................  
Weighted average shares outstanding — diluted.............................  

813 
  253,936 

856 
258,891 

2,023 
266,805 

Weighted average unvested share-based payment awards.............  

2,438 

2,611 

2,224 

Earnings per share 

Basic .....................................................................................................   $ 
Diluted ..................................................................................................   $ 

3.03  $ 
3.02  $ 

6.44  $ 
6.42  $ 

5.85 
5.81 

Only those items having a dilutive impact on our basic net income per share are included in diluted net income 
per share. For the years ended December 31, 2010, 2009 and 2008, stock options totaling 0.8 million, 0.1 million 
and  0.7  million,  respectively,  were  excluded  from  the  diluted  net  income  per  share  calculation  as  they  were  not 
dilutive. 

Note 4 — Marketable Securities  

Marketable Equity Securities 

During 2008, we purchased investments that closely correlate to the investment elections made by participants in 
the Noble Drilling Corporation 401(k) Savings Restoration Plan (“Restoration Plan”) in order to mitigate the impact 
of the investment income and losses from the Restoration Plan on our consolidated financial statements. The value 
of  these  investments  held  for  our  benefit  totaled  $7  million  and  $8  million  at  December  31,  2010  and  2009, 
respectively. These assets were classified as trading securities and carried at fair value in “Other current assets” with 
the realized and unrealized gain or loss included in “Other income” in the accompanying Consolidated Statements of 
Income. We recognized a  gain of $0.7  million during 2010 and a loss of $2  million on these  investments in both 
2009 and 2008. 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Note 5 — Receivables from Customers  

We had an agreement with one of our customers in the U.S. Gulf of Mexico regarding outstanding receivables 
owed  to  us,  which  totaled  approximately  $59  million  at  December  31,  2009.  The  customer  conveyed  to  us  an 
overriding  royalty  interest  (“ORRI”)  as  security  for  the  outstanding  receivables  and  agreed  to  a  payment  plan  to 
repay  all  past  due  amounts.  Amounts  received  by  us  pursuant  to  the  ORRI  have  been  applied  to  the  customer’s 
payment obligations under the payment plan. As of December 31, 2010, the customer had repaid all amounts due to 
us under this agreement therefore our right to the ORRI has been extinguished. 

In June 2010, a subsidiary of Frontier entered into a charter contract with a subsidiary of BP, plc (“BP”) for the 
FPSO, Seillean, with a term of a minimum of 100 days in connection with BP’s oil spill relief efforts in the U.S. 
Gulf of Mexico. The unit went on hire on July 23, 2010. In October 2010, after the Macondo well was sealed, BP 
initiated  an  arbitration  proceeding  against  us  claiming  the  contract  was  void  ab  initio,  or  never  existed,  due  to  a 
fundamental breach and demanded that we reimburse the amounts already paid to us under the charter. We believe 
BP  owes  us  the  amounts  due  under  the  charter  and  do  not  believe  BP  can  successfully  make  such  a  claim.  The 
charter  has  a  “hell  or  high  water”  provision  requiring  payment,  and  we  believe  we  have  satisfied  our  obligations 
under the charter. Based on the available information and the analysis we have performed to date, we have recorded 
the revenue under the charter, which was $29 million through the end of the contract. In the event BP is successful 
in its claim, we would take a charge for revenue recorded. However, we also believe that if BP were to be successful 
in  claiming  the  contract  void  ab  initio,  we  would  have  an  indemnity  claim  against  the  former  shareholders  of 
Frontier, and have put them on notice to that effect. 

Note 6 — Supplemental Cash Flow Information  

Cash paid during the period for: 

Interest, net of amounts capitalized ..............................................................  $ 
3,014 
Income taxes (net of refunds) .......................................................................  $  194,423   $  332,287   $  258,392 

1,618   $ 

4,044   $ 

Year Ended December 31, 
    2008 
2009 

  2010 

Note 7 — Debt  

Long-term debt consists of the following at December 31, 2010 and 2009:  

  December 31, 
2010 

  December 31, 
2009 

5.875% Senior Notes due 2013 ......................................................................   $   
7.375% Senior Notes due 2014 ......................................................................  
3.45% Senior Notes due 2015 ........................................................................  
7.50% Senior Notes due 2019 ........................................................................  
4.90% Senior Notes due 2020 ........................................................................  
6.20% Senior Notes due 2040 ........................................................................  
Bully 1 joint venture debt ...............................................................................  
Bully 2 joint venture debt ...............................................................................  
Bully 1 joint venture partner debt ...................................................................  
Bully 2 joint venture partner debt ...................................................................  
Credit Facility .................................................................................................  
Total Debt...................................................................................................  

299,911  $   
249,506   
350,000   
201,695   
498,672   
399,889   
370,000   
321,052   
18,500   
17,472   
40,000   
2,766,697   

299,874 
249,377 
— 
201,695 
— 
— 
— 
— 
— 
— 
— 
750,946 

Less: Current Maturities .................................................................................  

(80,213)   

— 

Long-term Debt ..........................................................................................   $   

2,686,484  $   

750,946 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

We have a $600 million unsecured bank credit facility (the “Credit Facility”) which matures March of 2013, of 
which we had drawn $40 million as of December 31, 2010. The credit facility contains various covenants including 
a covenant that limits our ratio of debt to total tangible capitalization (as defined in the Credit Facility) to 0.60. As of 
December 31, 2010, our ratio of debt to total tangible capitalization, as defined by the facility, was 0.22. 

In February 2011, we entered into an additional revolving credit facility with an initial capacity of $300 million. 
The  facility  matures  in  2015  and  provides  us  with  the  ability  to  issue  up  to  $150  million  in  letters  of  credit.  The 
covenants and events of default under the additional revolving credit facility are substantially similar to the Credit 
Facility, which remains in place. The new facility is guaranteed by our indirect wholly-owned subsidiaries, Noble 
Holding International Limited (“NHIL”) and Noble Drilling Corporation (“NDC”). 

At  December  31,  2010,  we  had  letters  of  credit  of  $126  million  and  performance  and  tax  assessment  bonds 
totaling $350 million supported by surety bonds outstanding. Of the letters of credit outstanding, $75 million were 
issued  to  support  bank  bonds  in  connection  with  our  drilling  units  in  Nigeria.  Additionally,  certain  of  our 
subsidiaries issue, from time to time, guarantees of the temporary import status of rigs or equipment imported into 
certain  countries  in  which  we  operate.  These  guarantees  are  issued  in  lieu  of  payment  of  custom,  value  added  or 
similar taxes in those countries. 

On  July  26,  2010,  we  issued  through  NHIL,  $1.25  billion  aggregate  principal  amount  of  senior  notes  in  three 
separate tranches, comprising $350 million of 3.45% Senior Notes due 2015, $500 million of 4.90% Senior Notes 
due 2020, and $400 million of 6.20% Senior Notes due 2040. Proceeds, net of discount and issuance costs, totaled 
$1.24  billion  and  were  used  to  finance  a  portion  of  the  cash  consideration  for  the  Frontier  acquisition.  Noble-
Cayman fully and unconditionally  guaranteed the  notes on a senior unsecured basis. Interest on all three series of 
these  senior  notes  is  payable  semi-annually,  in  arrears,  on  February  1  and  August  1  of  each  year,  beginning  on 
February 1, 2011. 

In February 2011, NHIL completed a debt offering of $1.1 billion aggregate principal amount of senior notes in 
three separate tranches, with $300 million of 3.05% Senior Notes due 2016, $400 million of 4.625% Senior Notes 
due 2021, and $400 million of 6.05% Senior Notes due 2041. The weighted average coupon of all three tranches is 
4.71%.  A  portion  of  the  net  proceeds  of  approximately  $1.09  billion  after  expenses  was  used  to  repay  the 
outstanding balance on our revolving credit facility and to repay our portion of outstanding debt under the Bully 1 
and Bully 2 credit facilities. 

As  part  of  the  Frontier  acquisition,  we  assumed  secured  non-recourse  debt  related  to  the  Bully  1  and  Bully  2 
joint ventures. In February 2011, the outstanding balances of the Bully 1 and Bully 2 credit facilities, which totaled 
$691  million,  were  repaid  in  full  and  the  credit  facilities  terminated  using  a  portion  of  the  proceeds  from  our 
February 2011 debt offering and equity contributions from our joint venture partner. In addition, the related interest 
rate swaps  were settled and terminated concurrent  with the repayment and termination of the credit facilities. The 
Bully 1 and Bully 2 credit facilities are discussed further below. 

The  Bully  1  secured  non-recourse  credit  facility  consisted  of  a  $375  million  senior  term  loan  facility,  a  $40 
million senior revolving loan facility and a $50 million junior term loan facility. As of December 31, 2010, loans in 
an aggregate principal amount of $370 million were outstanding under the senior term loan facility. The senior term 
loan facility provided for floating interest rates that were fixed for one-, three- or six-month periods at LIBOR plus 
2.5% prior to delivery and acceptance of the Noble Bully I drillship. As noted in Note 12- “Derivative Instruments 
and Hedging Activities”, the joint venture maintained interest rate swaps, with a notional amount of $278 million, to 
satisfy bank covenants and to hedge the impact of interest rate changes on interest paid. The Bully 1 credit facility 
was  secured  by  assignments  of  the  major  contracts  for  the  construction  of  the  Noble  Bully  I  drillship  and  its 
equipment, the drilling contract for the drillship, and various other rights. In connection with the termination of the 
credit facility, the security interest and related collateral has been released. 

The  Bully  2  secured  non-recourse  credit  facility  consisted  of  a  $435  million  senior  term  loan  facility,  a  $10 
million senior revolving loan facility and a $50 million cost overrun term loan facility. As of December 31, 2010, 
loans  in  an  aggregate  principal  amount  of  $321  million  were  outstanding  under  the  senior  term  loan  facility.  The 
senior  term  loan  facility  provided  for  floating  interest  rates  that  were  fixed  for  three  months  or  such  other  period 
selected by the borrower and agreed by the agent (but not to exceed three months), at LIBOR plus 2.5% prior to the 
occurrence  of  the  delivery  date  of  the  hull  and  thereafter  at  LIBOR  plus  2.3%,  until  contract  commencement.  As 
noted  in  Note  12-  “Derivative  Instruments  and  Hedging  Activities”,  the  joint  venture  maintained  an  interest  rate 
swap,  with  a  notional  amount  of  $326  million,  to  satisfy  bank  covenants  and  to  hedge  the  impact  of  interest  rate 
changes  on  interest  paid.  The  Bully  2  credit  facility  was  secured  by  assignments  of  the  major  contracts  for  the 
construction of the Noble Bully II drillship and its equipment, the drilling contract for the drillship, and various other 
rights. In connection with the termination of the credit facility, the security interest and related collateral has been 
released. 

74 

 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Certain  amendments  to  the  underlying  drilling  contracts  and  the  revised  vessel  delivery  impact  to  loan 
amortization schedules required consent from lenders to both Bully joint ventures. On the Bully 1 credit facility we 
obtained  a  waiver  regarding  certain  covenants  related  to  the  completion  date  of  the  Noble  Bully  I  drillship.  The 
waiver was set to expire on February 28, 2011. As these credit facilities have been refinanced using a portion of the 
proceeds  from  our  February  2011  debt  offering  and  equity  contributions  from  our  joint  venture  partner,  we 
continued to classify the non-current portions of the Bully 1 credit facilities as “Long-term debt” in our Consolidated 
Balance Sheets. 

In September 2010, the Bully joint ventures issued notes to the joint venture partners totaling $70 million. The 
interest  rate  on  these  notes  is  10%,  payable  semi-annually  in  arrears  and  in  kind  on  June  30  and  December  31 
commencing in December 2010. The interest payable due in 2010 was rolled into the principal loan balance of the 
notes.  The  purpose  of  these  notes  is  to  provide  additional  liquidity  to  these  joint  ventures  in  connection  with  the 
shipyard construction of the Bully vessels. Our portion of the joint venture partner notes, which totaled $36 million 
at  December  31,  2010,  has  been  eliminated  in  our  Consolidated  Balance  Sheets.  The  non-eliminated  portions  of 
these joint venture partner notes totaled $19 million for Bully 1 and $17 million for Bully 2 at December 31, 2010 
and are due in 2016 and 2018, respectively. 

Aggregate principal repayments of total debt for the next five years and thereafter are as follows: 

  Total 

  2011 

    2012 

5.875% Senior Notes due 2013 .....  $ 
7.375% Senior Notes due 2014 .....   
3.45% Senior Notes due 2015 .......   
7.50% Senior Notes due 2019 .......   
4.90% Senior Notes due 2020 .......   
6.20% Senior Notes due 2040 .......   
Bully 1 joint venture debt..............   
Bully 2 joint venture debt..............   
Bully 1 joint venture partner debt.....    
Bully 2 joint venture partner debt.....    
Credit Facility ...............................    

299,911  $ 
249,506 
350,000 
201,695 
498,672 
399,889 
370,000 
321,052 
18,500 
17,472 
40,000 

—  $ 
—    
—    
—    
—    
—    
63,000    
17,213    
—    
—    
—    

    2014 

    2015 

    2013 

—  $  299,911  $ 
—    
—    
—    
—    
—    
63,000    
50,457    
—    
—    
—    

—  $ 
—     249,506    
—    
—    
—    
—    
63,000    
53,494    
—    
—    
40,000    

—  $ 
—   
—     350,000   
—   
—    
—   
—    
—   
—    
63,000   
63,000    
59,232   
57,037    
—   
—    
—   
—    
—    
—    

    Thereafter   
— 
— 
— 
201,695 
498,672 
399,889 
55,000 
83,619 
18,500 
17,472 
— 

Total...................................................  $  2,766,697  $  80,213  $  113,457  $  456,405  $  369,543  $  472,232  $  1,274,847 

Fair Value of Financial Instruments 

Fair value, as used in FASB standards, represents the amount at which an instrument could be exchanged in a 
current transaction between willing parties. The fair value of our senior notes was based on the quoted market prices 
for similar issues or on the current rates offered to us for debt of similar remaining maturities. The following table 
presents the estimated fair value of our long-term debt as of December 31, 2010 and 2009. 

December 31, 2010 

December 31, 2009 

  Carrying 
  Value 

  Estimated 
  Fair Value   

  Carrying 

Value 

5.875% Senior Notes due 2013 .....................  $   
7.375% Senior Notes due 2014 ..................... 
3.45% Senior Notes due 2015 ....................... 
7.50% Senior Notes due 2019 ....................... 
4.90% Senior Notes due 2020 ....................... 
6.20% Senior Notes due 2040 ....................... 
Bully 1 joint venture debt .............................. 
Bully 2 joint venture debt .............................. 
Bully 1 joint venture partner debt .................. 
Bully 2 joint venture partner debt .................. 
Credit Facility ................................................ 

299,911  $   
249,506 
350,000 
201,695 
498,672 
399,889 
370,000 
321,052 
18,500 
17,472 
40,000 

324,281  $   
282,078   
357,292   
242,464   
516,192   
423,345   
370,000   
321,052   
18,500   
17,472   
40,000   

  Estimated 
  Fair Value   
325,398 
282,105 
— 
231,015 
— 
— 
— 
— 
— 
— 
— 

299,874  $   
249,377 
— 
201,695 
— 
— 
— 
— 
— 
— 
— 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

As both the Bully joint venture debt and the credit facility bears interest at a variable rate, we have deemed the 
fair  value  to  approximate  the  carrying  value  as  of  December  31,  2010.  The  Bully  joint  venture  partner  debt  is 
subordinated debt with joint venture partners and was entered into in September 2010 with interest in kind added to 
the  outstanding  balance  on  December  31,  2010,  with  no  modification,  therefore  any  difference  between  carrying 
value and estimated fair value is considered immaterial. 

Note 8 — Shareholders’ Equity  

Share capital 

The following is a detail of Noble-Swiss’ share capital as of December 31, 2010 and 2009 (in thousands): 

  December 31, 
  2010 

  2009   

Shares outstanding and trading .............................................................................................  
Treasury shares......................................................................................................................  
Total shares outstanding .........................................................................................................  

  252,275 
   10,140 
  262,415 

  258,225 
   3,750 
  261,975 

Treasury shares held for share-based compensation plans ....................................................  
Total shares authorized for issuance......................................................................................  

   13,851 
  276,266 

   14,291 
  276,266 

Par value (in Swiss Francs)........................................................................................................  

3.93 

4.85 

Shares authorized for issuance by Noble-Swiss at December 31, 2010 totaled 276.3 million shares and include 
10.1  million  shares  held  in  treasury  and  13.9  million  shares  held  by  a  wholly-owned  subsidiary.  Repurchased 
treasury  shares  are  recorded  at  cost,  and  include  shares  repurchased  pursuant  to  our  approved  share  repurchase 
program  discussed  below  and  shares  surrendered  by  employees  for  taxes  payable  upon  the  vesting  of  restricted 
stock.  Our  Board  of  Directors  is  authorized  to  issue  up  to  a  maximum  of  414.4  million  shares  without  additional 
shareholder approval and without conditions regarding use. 

Our  Board  of  Directors  may  further  increase  Noble-Swiss’  share  capital  through  the  issuance  of  up  to  138.1 
million conditionally authorized registered shares  without  obtaining additional shareholder approval. The issuance 
of these conditionally authorized registered shares is subject to certain conditions regarding their use. 

Share Repurchases 

Share repurchases were made pursuant to the share repurchase program which our Board of Directors authorized 
and  adopted.  At  December  31,  2010,  6.8  million  shares  remained  available  under  this  authorization.  Future 
repurchases will be subject to the requirements of Swiss law, including the requirement that we and our subsidiaries 
may only repurchase shares if and to the extent that sufficient freely distributable reserves are available. Also, the 
aggregate  par  value  of  all  registered  shares  held  by  us  and  our  subsidiaries,  including  treasury  shares,  may  not 
exceed  10  percent  of  our  registered  share  capital  without  shareholder  approval.  Our  existing  share  repurchase 
program  received  the  required  shareholder  approval  prior  to  completion  of  our  2009  Swiss  migration  transaction. 
Share repurchases for each of the three years ended December 31, 2010 are as follows: 

Year Ended 
December 31, 
2010 ................................................................................................ 
2009 ................................................................................................ 
2008 ................................................................................................ 

 Total Number 
  of Shares 
  Purchased 

  Total Cost   

6,390,488(1)  $  
5,470,000(1)   
7,965,109 

230,936  $   
186,506   
331,514   

  Average 
  Price Paid 
  per Share  
36.14 
34.10 
41.62 

(1)  Repurchases made subsequent to March 26, 2009, which totaled 10.1 million shares are being held as treasury 

shares at December 31, 2010. 

76 

 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
  
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Share-Based Compensation Plans 

Stock Plans 

The Noble Corporation 1991 Stock Option and Restricted Stock Plan, as amended (the “1991 Plan”), provides 
for  the  granting  of  options  to  purchase  our  shares,  with  or  without  stock  appreciation  rights,  and  the  awarding  of 
restricted shares or units to selected employees. In general, all options granted under the 1991 Plan have a term of 10 
years, an exercise price equal to the fair market value of a share on the date of grant and generally vest over a three-
year period. The 1991 Plan limits the total number of shares issuable under the plan to 45.1 million. As of December 
31, 2010, we had 4.4 million shares remaining available for grants to employees under the 1991 Plan. 

Prior  to  October  25,  2007,  the  Noble  Corporation  1992  Nonqualified  Stock  Option  and  Share  Plan  for  Non-
Employee Directors (the “1992 Plan”) provided for the granting of nonqualified stock options to our non-employee 
directors. We granted options at fair market value on the grant date. The options are exercisable from time to time 
over a period commencing one year from the grant date and ending on the expiration of 10 years from the grant date, 
unless  terminated  sooner  as  described  in  the  1992  Plan.  On  October  25,  2007,  the  1992  Plan  was  amended  and 
restated to, among other things, eliminate grants of stock options to non-employee directors and modify the annual 
award of restricted  shares  from a fixed  number of restricted shares to an annually-determined variable number of 
restricted  or  unrestricted  shares.  The  1992  Plan  limits  the  total  number  of  shares  issuable  under  the  plan  to  1.6 
million.  As  of  December  31,  2010,  we  had  0.7  million  shares  remaining  available  for  award  to  non-employee 
directors under the 1992 Plan. 

Stock Options 

A summary of the status of stock options granted under both the 1991 Plan and 1992 Plan as of December 31, 

2010, 2009 and 2008 and the changes during the year ended on those dates is presented below: 

2010 

2009 

2008 

 Number of 
  Shares 
 Underlying 
  Options 

 Weighted 
 Average 
 Exercise 
  Price 

 Number of 
  Shares 
 Underlying 
  Options 

 Weighted 
  Average 
  Exercise 
  Price 

 Number of 
  Shares 
 Underlying 
  Options 

 Weighted 
  Average 
  Exercise 
  Price 

212,730 
(549,405)   
(17,156)   

3,121,317  $   24.39   
39.46   
21.12   
20.78   
  2,767,486 
26.22   
  2,310,614  $   24.79   

3,553,999  $  
302,815 
(718,283)   
(17,214)   

  3,121,317 
  2,688,179  $  

4,397,773  $  
168,277 
(1,007,750)   
(4,301)   

22.84   
24.63   
16.94   
19.52     
24.39      3,553,999 
23.52      3,232,260  $  

21.28 
43.01 
19.29 
24.07 
22.84 
21.25 

Outstanding at beginning of 

year .........................................  
Granted .....................................  
Exercised (1).............................  
Forfeited ...................................  
Outstanding at end of year (2) ..  
Exercisable at end of year (2) ...  
____________ 

(1)  The intrinsic value of options exercised during the year ended December 31, 2010 was $11.6 million. 

(2)  The aggregate intrinsic value of options outstanding and exercisable at December 31, 2010 was $26.7 million. 

The following table summarizes additional information about stock options outstanding at December 31, 2010: 

Options Outstanding 

Options Exercisable 

  Number of 

Shares 

  Underlying 

Options 

  Weighted 
Average 

  Remaining 
  Life (Years) 

  Weighted 
Average 
Exercise 
Price 

Number 

  Exercisable 

16.82   
26.45   
28.42   
23.19   

1,096,484  $ 
666,710   
547,420   
2,310,614  $ 

  Weighted 
Average 
Exercise 
Price 

16.79 
26.97 
38.18 
24.79 

$15.55 to $24.65 ....   
$24.66 to $34.67 ....   
$34.68 to $43.01 ....   
Total.......................   

1,101,845   
857,487   
808,154   
2,767,486   

2.54  $ 
6.77   
6.97   
5.00  $ 

77 

 
 
 
 
 
 
 
 
 
  
 
   
   
 
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
   
 
  
  
  
  
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Fair value information and related valuation assumptions for stock options granted are as follows: 

  2010   
Weighted average fair value per option granted ......................................................  $  16.14 

  2009  
$  8.64 

  2008   
$  16.00 

Valuation assumptions: 
Expected option term (years)................................................................................... 
Expected volatility................................................................................................... 
Expected dividend yield .......................................................................................... 
Risk-free interest rate............................................................................................... 

6 

5 

44.6%    38.5%   
0.7%   
2.1%   

1.2%   
2.6%   

5 
35.6% 
0.4% 
2.9% 

The fair value of each option grant is estimated on the date of grant using a Black-Scholes option pricing model. 
Assumptions used in the valuation are shown in the table above. The expected term of options granted represents the 
period  of  time  that  the  options  are  expected  to  be  outstanding  and  is  derived  from  historical  exercise  behavior, 
current trends and values derived from lattice-based models. Expected volatilities are based on implied volatilities of 
traded  options  on  our  shares,  historical  volatility  of  our  shares,  and  other  factors.  The  expected  dividend  yield  is 
based on historical yields on the date of grant. The risk-free rate is based on the U.S. Treasury yield curve in effect 
at the time of grant. 

A  summary  of  the  status  of  our  non-vested  stock  options  at  December  31,  2010,  and  changes  during  the  year 

ended December 31, 2010, is presented below: 

Non-Vested Options at January 1, 2010 ............................................  
Granted ..............................................................................................  
Vested ................................................................................................  
Forfeited ............................................................................................  
Non-Vested Options at December 31, 2010 ......................................  

Shares 
 Under Outstanding 
Options 

 Weighted-Average 
  Grant-Date 
Fair Value 

433,138  $ 
212,730 
(188,996)   

— 
456,872  $ 

10.71 
16.14 
11.63 
— 
12.91 

At  December  31,  2010,  there  was  $3  million  of  total  unrecognized  compensation  cost  remaining  for  option 
grants  awarded  under  the  1991  Plan.  We  attribute  the  service  period  to  the  vesting  period  and  the  unrecognized 
compensation  is  expected  to  be  recognized  over  a  weighted-average  period  of  1.2  years.  Compensation  cost 
recognized during the years ended December 31, 2010, 2009 and 2008 related to stock options totaled $3 million, $2 
million and $2 million, respectively. 

We  issue  new  shares  to  meet  the  share  requirements  upon  exercise  of  stock  options.  We  have  historically 
repurchased  shares  in  the  open  market  from  time  to  time  which  minimizes  the  dilutive  effect  of  share-based 
compensation. 

Restricted Stock 

We have awarded both time-vested restricted stock and market based performance-vested restricted stock under 
the  1991  Plan.  The  time-vested  restricted  stock  awards  generally  vest  over  a  three  year  period.  The  number  of 
performance-vested  restricted  shares  which  vest  will  depend  on  the  degree  of  achievement  of  specified  corporate 
performance criteria over a three-year performance period. These criteria are strictly market based criteria as defined 
by FASB standards. 

The  time-vested  restricted  stock  is  valued  on  the  date  of  award  at  our  underlying  share  price.  The  total 
compensation for shares that ultimately vest is recognized over the service period. The shares and related par value 
are recorded when the restricted stock is issued and retained earnings is adjusted as the share-based compensation 
cost is recognized for financial reporting purposes. 

78 

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

The market based performance-vested restricted stock is valued on the date of grant based on the estimated fair 
value. Estimated fair value is determined based on numerous assumptions, including an estimate of the likelihood 
that our stock price performance will achieve the targeted thresholds and the expected forfeiture rate. The fair value 
is  calculated  using  a  Monte  Carlo  Simulation  Model.  The  assumptions  used  to  value  the  performance-vested 
restricted  stock  awards  include  historical  volatility,  risk-free  interest  rates,  and  expected  dividends  over  a  time 
period commensurate with the remaining term prior to vesting, as follows: 

Valuation assumptions: 
Expected volatility..................................................................................  
Expected dividend yield .........................................................................  
Risk-free interest rate..............................................................................  

  2010 

  2009 

  2008 

57.2%   
0.5%   
1.3%   

47.6% 
0.5% 
2.1% 

40.9% 
0.5% 
2.2% 

Additionally,  similar assumptions  were  made for each of the companies included in the defined index and the 

peer group of companies in order to simulate the future outcome using the Monte Carlo Simulation Model. 

A summary of the restricted share awards for each of the years in the period ended December 31 is as follows: 

Time-vested restricted shares: 
Shares awarded (maximum available) ....................................................  
Weighted-average share price at award date ..........................................   $ 
Weighted-average vesting period (years) ...............................................  

  537,269 
39.69 
3.0 

  2010 

Performance-vested restricted shares: 
Shares awarded (maximum available) ....................................................  
Weighted-average share price at award date ..........................................   $ 
Three-year performance period ended 
December 31...........................................................................................  
Weighted-average award-date fair value ................................................   $ 

  349,784 
39.73 

  2009 

  2008 

  820,523 
26.99 
$ 
3.0 

  752,160 
43.18 
$ 
3.0 

  579,160 
24.46 
$ 

  348,758 
43.92 
$ 

2012 
17.76 

$ 

2011 
13.55 

2010 
24.26 

$ 

We  award  both  time-vested  restricted  stock  and  unrestricted  shares  under  the  1992  Plan.  The  time-vested 
restricted stock awards  generally  vest over a three-year period. During the  years ended  December 31, 2010, 2009 
and 2008, we awarded 78,714, 67,280 and 45,281 unrestricted shares to non-employee directors, resulting in related 
compensation  cost  of  $3  million,  $2  million  and  $2  million,  respectively.  We  did  not  award  any  time-vested 
restricted stock under the 1992 Plan during the year ended December 31, 2010. 

A  summary  of  the  status  of  non-vested  restricted  shares  at  December  31,  2010  and  changes  during  the  year 

ended December 31, 2010 is presented below: 

  Time-Vested 
  Restricted 
Shares 
  Outstanding   

  Weighted 
  Average 
  Award-Date 
  Fair Value   

  Performance-Vested 
Restricted 
Shares 
Outstanding (1) 

  Weighted 
  Average 
 Award-Date 
  Fair Value   

1,445,719  $ 
537,269 
(731,422)   
(52,015)   

33.61   
39.69   
35.45   
35.68   

1,225,786  $ 
349,784 
(158,931)   
(190,770)   

  1,199,551  $ 

35.13   

1,225,869  $ 

16.28 
17.76 
13.63 
13.63 

17.01 

Non-vested restricted shares at 

January 1, 2010.............................  
Awarded .........................................  
Exercised ........................................  
Forfeited .........................................  
Non-vested restricted shares at 

December 31, 2010.......................  

____________ 

(1)  The number of performance-vested restricted shares shown equals the shares that would vest if the “maximum” 
level of performance is achieved. The minimum number of shares is zero and the “target” level of performance 
is 67 percent of the amounts shown. 

79 

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

At December 31, 2010 there was $24 million of total unrecognized compensation cost related to the time-vested 
restricted  shares  which  is  expected  to  be  recognized  over  a  remaining  weighted-average  period  of  1.4  years.  The 
total award-date fair value of time-vested restricted shares vested during the year ended December 31, 2010 was $26 
million. 

At December 31, 2010, there was $7 million of total unrecognized compensation cost related to the performance-
vested restricted shares which is expected to be recognized over a remaining weighted-average period of 1.4 years. 
The  total  potential  compensation  for  performance-vested  restricted  stock  is  recognized  over  the  service  period 
regardless  of  whether  the  performance  thresholds  are  ultimately  achieved.  During  the  year  ended  December  31, 
2010, 190,770 performance-vested shares for the 2007-2009 performance period were forfeited. On January 1, 2011, 
no  shares  of  the  performance-vested  shares  for  the  2008-2010  performance  period  vested  and,  in  February  2011, 
310,200 shares for the same performance period were forfeited. 

Compensation  expense  recognized  during  the  years  ended  December  31,  2010,  2009  and  2008  related  to  all 
restricted stock totaled $35 million ($30 million net of income tax), $32 million ($27 million net of income tax) and 
$29 million ($24 million net of income tax), respectively. Capitalized compensation costs totaled approximately $1 
million in 2010, 2009, and 2008. 

Note 9 — Accumulated Comprehensive Loss  

The following table sets forth the components of “Accumulated other comprehensive loss,” net of deferred taxes: 

December 31, 

Foreign currency translation adjustments ........................................................   $ 
Gain (loss) on foreign currency forward contracts ..........................................  
Gain (loss) on interest rate swaps ....................................................................  
Deferred pension amounts ...............................................................................  
Accumulated Other comprehensive (loss), net ................................................  

(9,736)  $  (12,192)  $  (12,469) 
— 
417 
1,604 
— 
366 
— 
(44,788) 
(42,454)    
(57,257) 
(50,220)    

(43,106)    
(54,881)    

  2010 

  2009 

  2008 

Less: Noncontrolling interest portion of gain on interest rate swaps...............  

(183)    

— 

— 

Other comprehensive (loss), net attributable to Noble Corporation ................   $  (50,403)  $  (54,881)  $  (57,257) 

Note 10 — Income Taxes  

Noble Corporation, a Swiss resident holding company, is exempt from Swiss cantonal and communal income tax 
on its worldwide income. Noble Corporation is also granted participation relief from Swiss federal tax for qualifying 
dividend income and capital gains related to the sale of qualifying participations. It is expected that the participation 
relief will result in a full exemption of participation income from Swiss federal income tax. 

We  operate  through  various  subsidiaries  in  numerous  countries  throughout  the  world,  including  the  United 
States.  Consequently,  income  taxes  have  been  provided  based  on  the  laws  and  rates  in  effect  in  the  countries  in 
which operations are conducted, or in which we or our subsidiaries are considered resident for income tax purposes. 

In  certain  circumstances,  management  expects  that,  due  to  changing  demands  of  the  offshore  drilling  markets 
and the ability to re-deploy our offshore drilling units, certain of such units will not reside in a location long enough 
to give rise to future tax consequences. As a result, no deferred tax asset or liability has been recognized in these 
circumstances. If management’s expectations change regarding the length of time an offshore drilling unit will be 
used in a given location, we will adjust deferred taxes accordingly. The components of the net deferred taxes were as 
follows: 

Deferred tax assets: 
United States 

2010 

2009 

Net operating loss carry forwards............................................................................  
Deferred pension plan amounts ...............................................................................  
Accrued expenses not currently deductible .............................................................  
Other........................................................................................................................  

 $ 

 $ 

7,256 
4,288 
37,258 
1,124 

— 
958 
12,436 
1,316 

80 

 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Non-U.S.: 

2010 

2009 

Net operating loss carry forwards............................................................................  
Deferred pension plan amounts ...............................................................................  
Other........................................................................................................................  
Deferred tax assets...........................................................................................................  
Less: valuation allowance........................................................................................  
Net deferred tax assets .....................................................................................................  

71,160 
4,018 
130 
125,234 

(6,000)    

 $  119,234 

 $ 

— 
4,870 
185 
19,765 
— 
19,765 

Deferred tax liabilities: 

United States 
Excess of net book basis over remaining tax basis ......................................................  
Other............................................................................................................................  
Non-U.S.: 

 $  (297,284)   $  (308,789) 
(4,790) 

(3,019)   

Excess of net book basis over remaining tax basis ..................................................  
Deferred tax liabilities .....................................................................................................  

(67,087)    

(6,417) 
 $  (367,390)   $  (319,996) 

Net deferred tax liabilities ...............................................................................................  

 $  (248,156)   $  (300,231) 

Income before income taxes consisted of the following:  

2008 
745,276 
United States...............................................................................................   $  132,326  $ 
Non-U.S......................................................................................................  
   784,183     1,277,772     1,167,182 
Total............................................................................................................   $  916,509  $  2,015,902  $  1,912,458 

2010 

Year Ended December 31, 
2009 
738,130  $ 

The income tax provision consisted of the following:  

Current- United States ................................................................................   $ 
Current- Non-U.S. ......................................................................................  
Deferred- United States ..............................................................................  
Deferred- Non-U.S. ....................................................................................  
Total............................................................................................................   $  143,077  $ 

   101,192   
(36,403)   
(2,607)   

2010 
80,895  $ 

Year Ended December 31, 
2009 
240,188  $ 
64,210   
33,530   
(668)   
337,260  $ 

2008 
215,412 
86,339 
47,307 
2,405 
351,463 

The  following  is  a  reconciliation  of  our  reserve  for  uncertain  tax  position  amounts,  excluding  interest  and 

penalties: 

Gross Balance at January 1,........................................................................   $ 
Additions based on tax positions related to current year (1) ....................  
Additions for tax positions of prior years ...............................................  
Reductions for tax positions of prior years.............................................  
Expiration of statutes (2)..........................................................................  
Tax Settlements ......................................................................................  
Gross balance at December 31, ..................................................................  
Related tax benefits ............................................................................  

2010 
87,668  $ 
6,942   
40,264   
—   
(6,293)   
—   
   128,581   
(7,693)   

Net Reserve at December 31, .....................................................................   $  120,888  $ 

2009 

84,942  $ 
9,087   
29,024   
(21,659)   
(9,487)   
(4,239)   
87,668   
(6,883)   
80,785  $ 

2008 

58,167 
32,846 
— 
(4,810) 
(220) 
(1,041) 
84,942 
(4,776) 
80,166 

(1)  $0.5 million related to transactions recorded directly to equity for the year ended December 31, 2008 

(2)  $(4.9) and $(5.8) million related to transactions recorded directly to equity  for the  year  ended December 31, 

2010 and December 31, 2009, respectively. 

81 

 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
  
 
 
  
 
   
   
 
 
 
  
 
 
  
 
   
   
 
  
  
 
 
  
 
   
   
 
  
  
  
  
  
  
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

The liabilities related to our reserve for uncertain tax position amounts were comprised of the following: 

2010 

    2009 

Reserve for uncertain tax position amounts, excluding interest and penalties..........................  
Interest and penalties ............................................................................................................  
Reserve for uncertain tax position amounts, including interest and penalties ..........................  

 $  120,888  $  80,785 
23,649    17,577 
 $  144,537  $  98,362 

The increase in uncertain tax positions at December 31, 2010 was primarily due to tax positions taken on returns 
filed  and  from  the  acquisition  of  FDR  Holdings  Limited.  If  these  reserves  of  $145  million  are  not  realized,  the 
provision for income taxes will be reduced by $129 million and equity would be directly increased by $16 million. 

We include as a component of our income tax provision potential interest and penalties related to recognized tax 
contingencies within our global operations. Interest and penalties included in income tax expense totaled $6 million, 
$5  million,  and  $3  million  in  2010,  2009  and  2008,  respectively.  Total  interest  and  penalties  accrued  in  “Other 
liabilities” totaled $24 million and $18 million as of December 31, 2010 and 2009, respectively. 

It is reasonably possible that our existing liabilities related to our reserve for uncertain tax position amounts may 
increase or decrease in the next twelve months primarily due to the completion of open audits or the expiration of 
statutes of limitation. However, we cannot reasonably estimate a range of changes in our existing liabilities due to 
various uncertainties, such as the unresolved nature of various audits. 

We  conduct  business  globally  and,  as  a  result,  we  file  numerous  income  tax  returns  in  the  U.S.  and  non-U.S. 
jurisdictions. In the  normal course of business  we are subject to examination by taxing  authorities throughout the 
world, including major jurisdictions such as Brazil, India, Mexico, Nigeria, Norway, Qatar, Switzerland, the United 
Kingdom and the United States. We are no longer subject to U.S. Federal income tax examinations for years before 
2007 and non-U.S. income tax examinations for years before 2000. 

Noble-Swiss  conducts  substantially  all  of  its  business  through  Noble-Cayman  and  its  subsidiaries.  Earnings 
taxable in Switzerland at the Swiss statutory rate of 8.5% are not material due to participation exemption, and the 
Cayman Islands does not impose a corporate income tax. A reconciliation of tax rates outside of Switzerland and the 
Cayman Islands to our Noble-Swiss effective rate is shown below: 

  Year Ended December 31, 
  2008 
  2009   
  2010   

Effect of: 
Tax Rates which are different than the Swiss and Cayman Island rates.................  
Reserve for (resolution of) tax authority audits ......................................................  

14.6%   
  1.0%   

17.3%   
 -0.6%   

18.0% 
  0.4% 

Total........................................................................................................................  

 15.6%   

 16.7%   

 18.4% 

In 2010, we generated and utilized $17 million of U.S. foreign tax credits. In 2009, we fully utilized our foreign 

tax credits of $71 million. In 2008, we fully utilized our foreign tax credits of $71 million. 

Deferred income taxes and the related dividend withholding taxes have not been provided on approximately $1.6 
billion of undistributed earnings of our U.S. subsidiaries. We consider such earnings to be permanently reinvested in 
the  U.S.  It  is  not  practicable  to  estimate  the  amount  of  deferred  income  taxes  associated  with  these  unremitted 
earnings. If such earnings were to be distributed, we would be subject to U.S. taxes, which would have a material 
impact on our results of operations. 

82 

 
 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Note 11 — Employee Benefit Plans  

Defined Benefit Plans 

We  have  a  U.S.  noncontributory  defined  benefit  pension  plan  which  covers  certain  salaried  employees  and  a 
U.S.  noncontributory  defined  benefit  pension  plan  which  covers  certain  hourly  employees,  whose  initial  date  of 
employment  is  prior  to  August  1,  2004  (collectively  referred  to  as  our  “qualified  U.S.  plans”).  These  plans  are 
governed by the Noble Drilling Corporation Retirement Trust (the “Trust”). The benefits from these plans are based 
primarily  on  years  of  service  and,  for  the  salaried  plan,  employees’  compensation  near  retirement.  These  plans 
qualify  under  the  Employee  Retirement  Income  Security  Act  of  1974  (“ERISA”),  and  our  funding  policy  is 
consistent  with  funding  requirements  of  ERISA  and  other  applicable  laws  and  regulations.  We  make  cash 
contributions, or utilize credit balances available to us  under the plan, for the qualified  U.S. plans  when required. 
The benefit amount that can be covered by the qualified U.S. plans is limited under ERISA and the Internal Revenue 
Code (“IRC”) of 1986. Therefore, we maintain an unfunded, nonqualified excess benefit plan designed to maintain 
benefits for all employees at the formula level in the qualified U.S. plans. We refer to the qualified U.S. plans and 
the excess benefit plan collectively as the “U.S. plans”. 

Each  of  Noble  Drilling  (Land  Support)  Limited,  Noble  Enterprises  Limited  and  Noble  Drilling  (Nederland) 
B.V.,  all  indirect,  wholly-owned  subsidiaries  of  Noble,  maintains  a  pension  plan  which  covers  all  of  its  salaried, 
non-union employees (collectively referred to as our “non-U.S. plans”). Benefits are based on credited service and 
employees’ compensation near retirement, as defined by the plans. 

A reconciliation of the changes in projected benefit obligations (“PBO”) for our non-U.S. and U.S. plans is as 

follows: 

Year Ended December 31, 

2010 

2009 

 Non-U.S.  

  U.S. 

 Non-U.S.  

  U.S. 

Benefit obligation at the beginning of year ................................   $  94,988  $  132,517  $  67,517  $  116,363 
7,213 
Service cost.................................................................................  
6,854 
Interest cost.................................................................................  
4,950 
Actuarial loss (gain)....................................................................  
(2,863) 
Benefits paid ...............................................................................  
— 
Plan participants’ contributions ..................................................  
— 
Foreign exchange rate changes ...................................................  
— 
Curtailment gain .........................................................................  
Benefit obligation at end of year ............................................   $  101,133  $  157,903  $  94,988  $  132,517 

3,674 
4,279 
16,498 
(1,771)   
544 
4,247 
— 

7,648 
7,829 
13,012 
(3,103)   
— 
— 
— 

4,260 
4,926 
3,837 
(2,438)   
669 
(5,109)   
— 

For the U.S. plans, the actuarial loss in 2010 is primarily the result of updated actuarial assumptions related to 

the deterioration of market conditions. 

A reconciliation of the changes in fair value of plan assets is as follows: 

Year Ended December 31, 

2010 

2009 

 Non-U.S.  

  U.S. 

 Non-U.S.  

  U.S. 

Fair value of plan assets at beginning of year.............................  $  117,340  $  124,874  $  95,932  $  93,548 
22,480 
Actual return on plan assets........................................................ 
11,709 
Employer contributions .............................................................. 
(2,863) 
Benefits and expenses paid......................................................... 
— 
Plan participants’ contributions .................................................. 
— 
Expenses paid ............................................................................. 
— 
Foreign exchange rate changes ................................................... 
Fair value of plan assets at end of year...................................  $  128,695  $  144,542  $  117,340  $  124,874 

11,623 
5,938 
(1,364)   
544 
(407)   
5,074 

12,522 
10,250 
(3,104)   
— 
— 
— 

13,434 
6,202 
(2,075)   
669 
(364)   
(6,511)   

83 

 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
  
 
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

The funded status of the plans is as follows:  

Year Ended December 31, 

2010 

2009 

Funded status ................................................................................   $  27,562  $  (13,361)  $ 

22,352  $ 

(7,643) 

 Non-U.S.  

  U.S. 

 Non-U.S.  

  U.S. 

Amounts recognized in the Consolidated Balance Sheets consist of:  

2010 

2009 

6,594  $ 
Other assets (noncurrent)..............................................................   $  28,240  $ 
Other liabilities (current) ..............................................................    
(1,353)     
Other liabilities (noncurrent) ........................................................      
(18,602)     
Net amount recognized .................................................................   $  27,562  $  (13,361)  $ 

— 
(678)    

23,098  $ 
—     

6,307 
(443) 
(746)      (13,507) 
(7,643) 

22,352  $ 

 Non-U.S.  

  U.S. 

 Non-U.S.  

  U.S. 

Amounts recognized in the “Accumulated other comprehensive loss” consist of: 

Year Ended December 31, 

2010 

2009 

Net actuarial loss ..........................................................................   $  11,591  $  51,966  $ 
Prior service cost ..........................................................................      
Transition obligation.....................................................................      
Deferred income tax asset.............................................................      
Accumulated other comprehensive loss .......................................   $ 

1,586 
— 
— 
70 
(4,017)   
(18,742)     
7,644  $  34,810  $ 

—     
150     

17,575  $  44,726 
1,813 
— 
(4,869)      (16,289) 
12,856  $  30,250 

 Non-U.S.  

  U.S. 

 Non-U.S.  

  U.S. 

Pension cost includes the following components:  

2010 

Year Ended December 31, 
2009 

2008 

Service Cost..............................................   $ 
Interest Cost..............................................  
Return on plan assets ................................  
Pension obligation settlement ...................  
Amortization of prior service cost ............  
Amortization of transition obligation .......  
Recognized net actuarial loss....................  
Net curtailment (gain)...............................  
Net pension expense .................................   $ 

 Non-U.S.  

 Non-U.S.  

 Non-U.S.  

  U.S. 

  U.S. 
4,260  $  7,648  $ 
4,926 
(5,321)   
718 
70 
— 
— 
— 

7,829 
(9,568)   
227 
— 
— 
2,821 
— 

  U.S. 
3,674  $  7,213  $ 
4,279 
(5,377)   
— 
249 
73 
— 
— 

6,854 
(7,143)   
— 
294 
— 
4,124 
— 

4,653  $  8,957  $ 

2,898  $  11,342  $ 

3,883  $  6,295 
6,459 
4,545 
(8,909) 
(6,642)   
— 
— 
391 
(21)   
— 
624 
349 
— 
— 
(1,993)   
396  $  4,585 

Defined Benefit Plans — Disaggregated Plan Information  

Disaggregated information regarding our non-U.S. and U.S. plans is summarized below: 

Year Ended December 31, 
2009 

2010 

 Non-U.S.  
Projected benefit obligation..........................................................   $  101,133 
Accumulated benefit obligation....................................................       97,913 
Fair value of plan assets................................................................       128,694 

84 

 Non-U.S.  

  U.S. 
94,988  $  132,517 
 $  157,903  $ 
  122,475     
92,392      99,235 
  144,543      117,340      124,874 

  U.S. 

 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
  
 
 
  
 
 
 
 
  
 
 
 
   
 
   
 
 
  
 
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
  
 
 
  
 
 
 
 
  
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

The following table provides information related to those plans in which the PBO exceeded the fair value of the 
plan assets at December 31, 2010 and 2009. The PBO is the actuarially computed present value of earned benefits 
based on service to date and includes the estimated effect of any future salary increases. 

Year Ended December 31, 

2010 

2009 

Projected benefit obligation................................................   $  
Fair value of plan assets......................................................  

 Non-U.S.  
4,906 
4,228 

  U.S. 
$ 140,320  $ 
  120,365 

 Non-U.S.  
4,859 
4,112 

  U.S. 
$  116,374 
  102,424 

The PBO for the unfunded excess benefit plan was $13 million and $10 million at December 31, 2010 and 2009, 

respectively, and is included under “U.S.” in the above tables. 

The  following  table  provides  information  related  to  those  plans  in  which  the  accumulated  benefit  obligation 
(“ABO”)  exceeded  the  fair  value  of  plan  assets  at  December  31,  2010  and  2009.  The  ABO  is  the  actuarially 
computed present value of earned benefits based on service to date, but differs from the PBO in that it is based on 
current salary levels. 

Year Ended December 31, 

2010 

2009 

Accumulated benefit obligation..........................................   $  
Fair value of plan assets......................................................  

 Non-U.S.  
4,588 
4,228 

  U.S. 
$  7,943  $ 

 Non-U.S.  
4,516 
4,112 

  U.S. 
$ 

5,784 
— 

— 

The ABO for the unfunded excess benefit plan was $8 million at December 31, 2010 as compared to $6 million 

in 2009, and is included under “U.S.” in the above tables. 

Defined Benefit Plans — Key Assumptions  

The key assumptions for the plans are summarized below:  

Weighted-average assumptions used to determine 
benefit obligations: 
Discount Rate .................................................................  
Rate of compensation increase .......................................  

  5.3%-5.4% 
  3.9%-4.6% 

  5%-5.8%    5.3%-5.7%    5.8%-6.0% 
5.0% 

5.0%    3.9%-4.4%   

Year Ended December 31, 

2010 

2009 

 Non-U.S.  

  U.S. 

 Non-U.S.   

  U.S. 

2010 

2009 

2008 

 Non-U.S.  

  U.S. 

  Non-U.S.  

  U.S. 

  Non-U.S.  

 U.S.  

Year Ended December 31, 

Weighted-average assumptions used to determine 
periodic benefit cost: 
Discount Rate..................................................................  
Expected long-term return on assets................................  
Rate of compensation increase ........................................  

5.3%-5.4% 
3.0%-6.5% 
3.9%-4.0% 

5.8%-6.0% 
7.8% 
5.0% 

5.3%-5.7% 
3.0%-6.5% 
3.9%-4.4% 

5.8%-6.0% 
7.8% 
5.0% 

5.3%-6.7%    6.5% 
4.5%-6.5%    7.8% 
3.9%-4.0%    5.0% 

The discount rate used to calculate the net present value of future benefit obligations for our U.S. plan is based 
on the average of current rates earned on long-term bonds that receive a Moody’s rating of “Aa” or better We have 
determined that the timing and amount of expected cash outflows on our plan reasonably match this index. For non-
U.S. plans, the discount rates used to calculate the net present value of future benefit obligations are determined by 
using a yield curve of high quality bond portfolios with an average maturity approximating that of the liabilities. 

We employ third-party consultants for our U.S. and non-U.S. plans that use a portfolio return model to assess the 
initial reasonableness of the expected long-term rate of return on plan assets. To develop the expected long-term rate 
of  return  on  assets,  we  considered  the  current  level  of  expected  returns  on  risk  free  investments  (primarily 
government bonds), the historical level of risk premium associated with the other asset classes in which the portfolio 
is invested and the expectations for future returns of each asset class. The expected return for each asset class was 
then weighted based on the target asset allocation to develop the expected long-term rate of return on assets for the 
portfolio. 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Defined Benefit Plans — Plan Assets  

Non-U.S. Plans 

Both  the  Noble  Enterprises  Limited  and  Noble  Drilling  (Nederland)  B.V.  pension  plans  have  a  targeted  asset 
allocation  of  100  percent  debt  securities.  The  investment  objective  for  the  Noble  Enterprises  Limited  U.S.  Dollar 
plan  assets  is  to  earn  a  favorable  return  against  the  Citigroup  World  Governmental  Bond  Index  for  all  maturities 
greater  than  one  year.  The  investment  objective  for  both  the  Noble  Enterprises  Limited  and  the  Noble  Drilling 
(Nederland)  B.V.  Euro  plan  assets  is  to  earn  a  favorable  return  against  the  Barclays  Capital  Euro  Aggregate 
Unhedged index and the Customized Benchmark for Long Duration Fund for all maturities greater than one year. 
We evaluate the performance of these plans on an annual basis. 

There  is  no  target  asset  allocation  for  the  Noble  Drilling  (Land  Support)  Limited  pension  plan.  However,  the 
investment  objective  of  the  plan,  as  adopted  by  the  plan’s  trustees,  is  to  achieve  a  favorable  return  against  a 
benchmark  of  blended  United  Kingdom  market  indices.  By  achieving  this  objective,  the  trustees  believe  the  plan 
will  be  able  to  avoid  significant  volatility  in  the  contribution  rate  and  provide  sufficient  plan  assets  to  cover  the 
plan’s  benefit  obligations  were  the  plan  to  be  liquidated.  To  achieve  these  objectives,  the  trustees  have  given  the 
plan’s investment managers full discretion in the day-to-day management of the plan’s assets. The plan’s assets are 
invested  with  two  investment  managers.  The  performance  objective  communicated  to  one  of  these  investment 
managers is to exceed a blend of FTSE  A Over 15 Year  Gilts  index and iBoxx Sterling Non Gilts index by 1.25 
percent per annum. The performance objective communicated to the other investment manager is to exceed a blend 
of FTSE’s All Share index, North America index, Europe index and Pacific Basin index by 1.00 to 2.00 percent per 
annum. This investment manager is prohibited by the trustees from investing in real estate. The trustees meet with 
the investment managers periodically to review and discuss their investment performance. 

The actual fair values of Non-U.S. pension plans at December 31, 2010 and 2009 were as follows: 

December 31, 2010 
Estimated Fair Value 
Measurements 

  Quoted 
 Prices in 
  Active 
  Markets 
 (Level 1)  

  Significant 

Other 

  Observable 

Inputs 
(Level 2) 

  Significant 
  Unobservable 
Inputs 
(Level 3) 

 Carrying 
  Amount   

Cash ......................................................................   $ 

12  $ 

12  $ 

Equity securities: 

International companies.....................................   $ 

42,698  $  42,698  $ 

Fixed income securities: 

Corporate bonds ................................................   $ 

85,984  $  17,421  $ 

Total......................................................................   $  128,694  $  60,131  $ 

—  $ 

—  $ 

68,563  $ 

68,563  $ 

— 

— 

— 

— 

December 31, 2009 
Estimated Fair Value 
Measurements 

  Quoted 
 Prices in 
  Active 
  Markets 
 (Level 1)  

  Significant 

Other 

  Observable 

Inputs 
(Level 2) 

  Significant 
  Unobservable 
Inputs 
(Level 3) 

  Carrying 
  Amount   

Equity securities: 

International companies.....................................   $ 

39,433  $  39,433  $ 

—  $ 

— 

Fixed income securities: 

Corporate bonds ................................................   $ 
Other..................................................................  

73,795  $  17,703  $ 
4,112     

— 

Total......................................................................   $  117,340  $  57,136  $ 

56,092  $ 
— 

56,092  $ 

— 
4,112 

4,112 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

At  December  31,  2009  the  assets  of  Noble  Drilling  (Nederland)  B.V.  are  invested  in  instruments  which  are 
similar in form to annuity contracts. There were no observable market value in these assets. However, the amounts 
listed as plan assets did materially resemble the obligations which were anticipated under the plan. Amounts were 
therefore  calculated  using  actuarial  assumptions  and  were  calculated  by  third-party  consultants  employed  by  the 
Company. On April 20, 2010 the assets were transferred to the NEL plan and moved into level two in assets above. 
The following details a roll-forward of the fair value of these assets from December 31, 2009 up until the transfer of 
these assets to level two on April 20, 2010. 

 Carrying 
 Amount  
Balance as of December 31, 2009...........................................................................................................  $   4,112 
48 
94 
(35) 
(4) 
72 
Balance as of April 20, 2010...................................................................................................................  $   4,287 

Return on plan assets ............................................................................................................................ 
Employer contributions ........................................................................................................................ 
Benefits paid......................................................................................................................................... 
Expenses paid ....................................................................................................................................... 
Loss on foreign exchange ..................................................................................................................... 

U.S. Plans 

The  qualified  U.S.  plans’  Trust  invests  in  equity  securities,  fixed  income  debt  securities,  and  cash  equivalents 
and  other  short-term  investments.  The  Trust  may  invest  in  these  investments  directly  or  through  pooled  vehicles, 
including mutual funds. 

The Company’s overall investment strategy, or target range, is to achieve a mix of approximately 65 percent in 
equity securities, 32 percent in debt securities and 3 percent in cash holdings. Actual results may deviate from the 
target  range,  however  any  deviation  from  the  target  range  of  asset  allocations  must  be  approved  by  the  Trust’s 
governing committee. 

The performance objective of the Trust is to outperform the return of the Total Index Composite as constructed 
to  reflect  the  target  allocation  weightings  for  each  asset  class.  This  objective  should  be  met  over  a  market  cycle, 
which is defined as a period not less than three years or more than five years. U.S. equity securities (common stock, 
convertible  preferred  stock  and  convertible  bonds)  should  achieve  a  total  return  (after  fees)  that  exceeds  the  total 
return  of  an  appropriate  market  index  over  a  full  market  cycle  of  three  to  five  years.  Non-U.S.  equity  securities 
(common  stock,  convertible  preferred  stock  and  convertible  bonds),  either  from  developed  or  emerging  markets, 
should  achieve  a  total  return  (after  fees)  that  exceeds  the  total  return  of  an  appropriate  market  index  over  a  full 
market  cycle  of  three  to  five  years.  Fixed  income  debt  securities  should  achieve  a  total  return  (after  fees)  that 
exceeds  the  total  return  of  an  appropriate  market  index  over  a  full  market  cycle  of  three  to  five  years.  Cash 
equivalent  and  short-term  investments  should  achieve  relative  performance  better  than  the  90-day  Treasury  bills. 
When mutual funds are used by the Trust, those mutual funds should achieve a total return that equals or exceeds the 
total return of each fund’s appropriate Lipper or Morningstar peer category over a full market cycle of three to five 
years. Lipper and Morningstar are independent mutual fund rating and information services. 

For  investments  in  equity  securities,  no  individual  options  or  financial  futures  contracts  are  purchased  unless 
approved in writing by the Trust’s governing committee. In addition, no private placements or purchases of venture 
capital are allowed. The maximum commitment to a particular industry, as defined by Standard & Poor’s, may not 
exceed 20 percent. The Trust’s equity managers vote all proxies in the best interest of the Trust without regards to 
social  issues.  The  Trust’s  governing  committee  reserves  the  right  to  comment  on  and  exercise  control  over  the 
response to any individual proxy solicitation. 

For fixed income debt securities, corporate bonds purchased are primarily limited to investment grade securities 
as established by Moody’s or Standard & Poor’s. At no time shall the lowest investment grade make up more than 
20 percent of the total market value of the Trust’s fixed income holdings. The total fixed income exposure from any 
single  non-government  or  government  agency  issuer  shall  not  exceed  10  percent  of  the  Trust’s  fixed  income 
holdings. The average duration of the total portfolio shall not exceed seven years. All interest and principal receipts 
are swept, as received, into an alternative cash management vehicle until reallocated in accordance with the Trust’s 
core allocation. 

87 

 
 
 
 
  
  
 
 
 
 
   
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

For investments in mutual funds, the assets of the Trust are subject to the guidelines and limits imposed by such 

mutual fund’s prospectus and the other governing documentation at the fund level. 

For investments in cash equivalent and short-term investments, the Trust utilizes a money market mutual fund 
which invests in U.S. government and agency obligations, repurchase agreements collateralized by U.S. government 
or agency securities, commercial paper, bankers’ acceptances, certificate of deposits, delayed delivery transactions, 
reverse  repurchase  agreements,  time  deposits  and  Euro  obligations.  Bankers’  acceptances  shall  be  made  in  larger 
banks (ranked by assets) rated “Aa” or better by Moody’s and in conformance with all FDIC regulations concerning 
capital requirements. 

Equity securities include our shares in the amounts of $4 million (2.7 percent of total U.S. plan assets) and $4 

million (3.6 percent of total U.S. plan assets) at December 31, 2010 and 2009, respectively. 

The actual fair values of U.S. plan assets were as follows:  

December 31, 2010 
Estimated Fair Value 
Measurements 
 Significant 
  Other 
 Observable 
Inputs 
  (Level 2) 

  Significant 
 Unobservable 
Inputs 
(Level 3) 

  Quoted 
  Prices in 
  Active 
  Markets 
 (Level 1)   

 Carrying 
 Amount  

    December 31, 2009 

  Carrying 
  Amount   

 Estimated 
 Fair Value  

Cash ........................................   $ 

2,824  $   

2,824  $   

—  $   

—  $   

3,682  $   

3,682 

Equity securities: 

U.S. Companies ...................   $  100,409  $    100,409  $   

—  $   

—  $    83,684  $   

83,684 

Fixed income securities: 

Corporate bonds ..................   $  41,310  $    41,310  $   

Total........................................   $  144,543  $    144,543  $   

—  $   

—  $   

—  $    37,508  $   

37,508 

—  $    124,874  $    124,874 

As of December 31, 2010 no single security made up more than 10 percent of total assets of either the U.S. or the 

Non-U.S. plans. 

Defined Benefit Plans — Cash Flows  

In  2010,  we  made  total  contributions  of  $6  million  and  $10  million  to  our  non-U.S.  and  U.S.  pension  plans, 
respectively. In 2009, we made total contributions of $6 million and $12 million to our non-U.S. and U.S. pension 
plans, respectively. In 2008, we made total contributions of $7 million to each of our non-U.S. and $15 million to 
our U.S. pension plans. Due to improving market conditions, we expect our aggregate minimum contributions to our 
non-U.S.  and  U.S.  plans  in  2011,  subject  to  applicable  law,  to  be  $6  million  and  $0  million,  respectively.  We 
continue to monitor and evaluate funding options based upon market conditions and may increase contributions at 
our discretion. 

In August 2006, the Pension Protection Act of 2006 (“PPA”) was signed into law in the U.S. The PPA requires 
that pension plans become fully funded over a seven-year period beginning in 2008 and increases the amount we are 
allowed to contribute to our U.S. pension plans in the near term. 

Estimated benefit payments from our non-U.S. plans are $6 million for 2011, $2 million for 2012, $2 million for 

2013, $2 million for 2014, $2 million for 2015 and $14 million in the aggregate for the five years thereafter. 

Estimated  benefit  payments  from  our  U.S.  plans  are  $0  million  for  2011,  $4  million  for  2012,  $5  million  for 

2013, $5 million for 2014, $6 million for 2015 and $49 million in the aggregate for the five years thereafter. 

88 

 
 
 
 
 
 
 
  
  
 
 
  
  
  
  
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
 
 
  
 
 
 
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
   
   
 
 
 
 
 
 
 
 
 
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Other Benefit Plans 

We sponsor the Restoration Plan, which is a nonqualified, unfunded employee benefit plan under which certain 
highly compensated employees may elect to defer compensation in excess of amounts deferrable under our 401(k) 
savings plan. The Restoration Plan has no assets, and amounts withheld for the Restoration Plan are kept by us for 
general corporate purposes. The investments selected by employees and associated returns are tracked on a phantom 
basis.  Accordingly,  we have  a liability to the employee  for amounts originally  withheld plus phantom investment 
income or less phantom investment losses. We are at risk for phantom investment income and, conversely, benefit 
should phantom investment losses occur. At December 31, 2010 and 2009, our liability for the Restoration Plan was 
$7 million and $8 million, respectively, and is included in “Accrued payroll and related costs.” 

In  2005  we  enacted  a  profit  sharing  plan,  the  Noble  Drilling  Corporation  Profit  Sharing  Plan,  which  covers 
eligible employees, as defined. Participants in the plan become fully vested in the plan after five years of service, or 
three  years  beginning  in  2007.  Profit  sharing  contributions  are  discretionary,  require  Board  of  Directors  approval 
and are made in the form of cash. Contributions recorded related to this plan totaled $2 million, $1 million and $2 
million in 2010, 2009 and 2008, respectively. 

We sponsor a 401(k) savings plan, a medical plan and other plans for the benefit of our employees. The cost of 
maintaining these plans aggregated $45 million, $36 million and $37 million in 2010, 2009 and 2008, respectively. 
We do not provide post-retirement benefits (other than pensions) or any post-employment benefits to our employees. 

Note 12 — Derivative Instruments and Hedging Activities  

We  periodically  enter  into  derivative  instruments  to  manage  our  exposure  to  fluctuations  in  interest  rates  and 
foreign  currency  exchange  rates.  We  have  documented  policies  and  procedures  to  monitor  and  control  the  use  of 
derivative instruments. We do not engage in derivative transactions for speculative or trading purposes, nor were we 
a  party  to  leveraged  derivatives.  As  a  result  of  the  Frontier  acquisition,  discussed  in  Note  2,  we  maintain  certain 
foreign exchange forward contracts that do not qualify under the Financial Accounting Standards Board (“FASB”) 
standards  for hedge accounting treatment and therefore, changes in fair values are recognized as either income or 
loss in our consolidated income statement. These contracts are discussed further below. 

For foreign currency forward contracts, hedge effectiveness is evaluated at inception based on the matching of 
critical  terms  between  derivative  contracts  and  the  hedged  item.  For  interest  rate  swaps,  we  evaluate  all  material 
terms between the swap and the underlying debt obligation, known in FASB standards as the “long-haul method”. 
Any change in fair value resulting from ineffectiveness is recognized immediately in earnings. We recognized a loss 
of $0.3 million in other income due to interest rate swap hedge ineffectiveness during the year ended December 31, 
2010. No income or loss was recognized during 2009 or 2008 due to hedge ineffectiveness. 

Cash Flow Hedges 

Our North Sea and Brazil operations have a significant amount of their cash operating expenses payable in local 
currencies. To limit the potential risk of currency  fluctuations,  we typically  maintain short-term forward contracts 
settling monthly in their respective local currencies to mitigate exchange exposure. The forward contract settlements 
in 2011 represent approximately 20 percent of these forecasted local currency requirements. The notional amount of 
the forward contracts outstanding, expressed in U.S. Dollars, was approximately $53 million at December 31, 2010. 
Total unrealized gains related to these forward contracts were $2 million and $0.4 million as of December 31, 2010 
and 2009, respectively, and were recorded as part of “Accumulated other comprehensive loss” in the Consolidated 
Balance Sheets. 

As part of the Frontier acquisition discussed in Note 2, we acquired an interest in the two Bully joint ventures. 
These joint ventures maintain interest rate swaps which are classified as cash flow hedges. The interest rate swaps 
relate to debt for the construction of the two Bully-class rigs undertaken by the two joint ventures, and the hedges are 
designed to fix the cash paid for interest on these projects. The purpose of these hedges is to satisfy bank covenants 
and to limit exposure to changes in interest rates. There are no credit risk related contingency features embedded in 

89 

 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

these  swap  agreements.  The  aggregate  notional  amounts  of  the  interest  rate  swaps  totaled  $604  million  as  of 
December 31, 2010. The notional amounts and settlement  dates for the Bully 1 interest  rate swaps is $47  million 
settling on June 30, 2011 and $231 million settling quarterly, with the final amounts settling in December 2014. The 
notional amount and settlement dates for the Bully 2 interest rate swap is $326 million settling quarterly, with the 
final amount settling in January 2018. The carrying amount of these interest rate swaps was a liability of $27 million 
as  of  December  31,  2010.  For  the  year  ended  December  31,  2010,  $0.1  million  was  recognized  in  the  income 
statement  for  the  ineffective  portion  of  our  interest  rate  swaps.  As  of  December  31,  2010,  we  do  not  expect  to 
reclassify material amounts from “Accumulated other comprehensive loss” to “other income” within the next twelve 
months. 

As  noted  in  Note  7  —  “Debt,”  in  February  2011,  the  outstanding  balances  of  the  Bully  1  and  Bully  2  credit 
facilities, which totaled $691 million, were repaid in full and the credit facilities terminated. In addition, the related 
interest rate swaps were settled and terminated concurrent with the repayment and termination of the credit facilities. 

The  balance  of  the  net  unrealized  gain/(loss)  related  to  our  cash  flow  hedges  included  in  AOCL  in  the 

Consolidated Balance Sheets and related activity is as follows: 

Net unrealized gain at beginning of period....................................................................   $ 
Activity during period: 

417  $  —  $  2,219 

  2010 

 2009  

  2008   

Settlement of foreign currency forward contracts during the period .........................  
Net unrealized gain/(loss) on outstanding foreign currency forward contracts .........  
Net unrealized gain/(loss) on outstanding interest rate swaps ...................................  

(2,219) 
— 
— 
Net unrealized gain/(loss) at end of period ....................................................................   $  1,970  $  417  $  — 

(417)    — 
  417 
  — 

  1,604 
366 

Fair Value Hedges 

During 2008, we entered into a firm commitment for the construction of the Noble Globetrotter I drillship. The 
drillship  will  be  constructed  in  two  phases,  with  the  second  phase  being  installation  and  commissioning  of  the 
topside  equipment.  The  contract  for  this  second  phase  of  construction  is  denominated  in  Euros,  and  in  order  to 
mitigate the risk of fluctuations in foreign currency exchange rates, we entered into forward contracts to purchase 
Euros.  As  of  December  31,  2010,  the  aggregate  notional  amount  of  the  forward  contracts  was  30  million  Euros. 
Each  forward  contract  settles  in  connection  with  required  payments  under  the  construction  contract.  We  are 
accounting for these forward contracts as fair value hedges. The fair market value of these derivative instruments is 
included  in  “Other  current  assets/liabilities”  or  “Other  assets/liabilities,”  in  the  Consolidated  Balance  Sheets 
depending  on  when  the  forward  contract  is  expected  to  be  settled.  Gains  and  losses  from  these  fair  value  hedges 
would be recognized in earnings currently along with the change in fair value of the hedged item attributable to the 
risk being  hedged, if any portion  was  found to be ineffective. The fair  market  value of these outstanding  forward 
contracts, which are included in “Other current assets/liabilities” and “Other assets/liabilities,” totaled approximately 
$3 million at December 31, 2010 and $0.8 million at December 31, 2009. No gains or losses related to fair value 
hedges were recognized in the income statement for the years ended December 31, 2010, 2009 and 2008. 

Foreign Exchange Forward Contracts 

The  Bully  2  joint  venture  maintains  foreign  exchange  forward  contracts  to  help  mitigate  the  risk  of  currency 
fluctuation of the Singapore Dollar for the construction of the Bully II vessel taking place in a Singapore shipyard as 
of December 31, 2010. The notional amount on these contracts totaled approximately $31 million as of December 
31, 2010. These contracts were not designated for hedge accounting treatment under FASB standards and therefore 
changes in fair values are recognized as either income or loss in our consolidated income statement. These contracts 
are referred to as non-designated derivatives in the tables to follow. For the year ended December 31, 2010, we have 
recognized a gain of $2 million related to these foreign exchange forward contracts. 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Financial Statement Presentation 

The following tables, together with Note 13, summarize the financial statement presentation and fair value of our 

derivative positions as of December 31, 2010 and 2009: 

Asset derivatives 

Cash flow hedges 

Balance sheet 
classification 

    Estimated fair value 
2009 

2010 

Short-term foreign currency forward contracts ..............  

Other current assets 

$  

2,015  $ 

654 

Non-designated derivatives 

Short-term foreign currency forward contracts ..............  

Other current assets 

2,603   

— 

Liability derivatives 
Fair value hedges 

Short-term foreign currency forward contracts ..............   Other current liabilities  $  
Long-term foreign currency forward contracts...............  

Other liabilities 

3,306  $ 
—   

Cash flow hedges 

Short-term foreign currency forward contracts ..............   Other current liabilities   
Short-term interest rate swaps ........................................   Other current liabilities   
Long-term interest rate swaps.........................................  

Other liabilities 

412   
15,697   
10,893   

301 
464 

237 
— 
— 

To supplement the fair value disclosures in Note 13, the following summarizes the recognized gains and losses 
of cash flow  hedges and non-designated derivatives through AOCL or through “other income”  for the  year ended 
December 31, 2010 and 2009: 

  Gain/(loss) 
recognized through 
AOCL 

Gain/(loss) reclassified 
 from AOCL to “other 
income” 

  2010 

  2009 

  2010 

  2009 

  Gain/(loss) recognized 
 through “other income”  
  2010 

  2009 

Cash flow hedges 

Foreign currency forward 
contracts .....................................   $  1,187  $ 
Interest rate swaps ........................  

366 

417  $  — 
— 

— 

$  — 
— 

$  — 
(96) 

$  — 
— 

Non-designated derivatives 
Foreign currency forward 

contracts .....................................   $  —  $  —  $  — 

$  — 

$  2,253 

$  — 

For  cash  flow  presentation  purposes,  a  total  use  of  cash  of  $7  million  was  recognized  through  the  financing 
section related to interest rate swaps, all other amounts are recognized through changes in operating activities and 
are recognized through changes in other assets and liabilities. 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Note 13 — Financial Instruments and Credit Risk  

The  following  table  presents  the  carrying  amount  and  estimated  fair  value  of  our  financial  instruments 

recognized at fair value on a recurring basis: 

December 31, 2010 
Estimated Fair Value 
Measurements 
 Significant 
  Other 
Observable 
Inputs 
  (Level 2)   

  Quoted 
  Prices in 
  Active 
  Markets 
 (Level 1)   

  Significant 
 Unobservable 
Inputs 
(Level 3) 

 Carrying 
 Amount   

    December 31, 2009 

 Carrying 
 Amount   

 Estimated 
 Fair Value  

6,854  $ 

  6,854  $ 

—  $ 

—  $ 

  8,483  $ 

  8,483 

Assets - 

Marketable securities.............  $ 
Foreign currency forward 

contracts .............................. 

4,618   

  —   

4,618   

—   

654   

654 

Liabilities - 

Interest rate swaps .................  $  26,590  $ 
Foreign currency forward 

  —  $ 

  26,590  $ 

—  $ 

  —  $ 

— 

contracts .............................. 

3,718   

  —   

3,718   

—   

1,002   

1,002 

The  derivative  instruments  have  been  valued  using  actively  quoted  prices  and  quotes  obtained  from  the 
counterparties  to  the  derivative  agreements.  Our  cash  and  cash  equivalents,  accounts  receivable  and  accounts 
payable are by their nature short-term. As a result, the carrying values included in the accompanying Consolidated 
Balance Sheets approximate fair value. 

Concentration of Credit Risk 

The  market  for  our  services  is  the  offshore  oil  and  gas  industry,  and  our  customers  consist  primarily  of 
government-owned  oil  companies,  major  integrated  oil  companies  and  independent  oil  and  gas  producers.  We 
perform ongoing credit evaluations of our customers and generally do not require material collateral. We maintain 
reserves  for  potential  credit  losses  when  necessary.  Our  results  of  operations  and  financial  condition  should  be 
considered  in  light  of  the  fluctuations  in  demand  experienced  by  drilling  contractors  as  changes  in  oil  and  gas 
producers’  expenditures  and  budgets  occur.  These  fluctuations  can  impact  our  results  of  operations  and  financial 
condition as supply and demand factors directly affect utilization and dayrates, which are the primary determinants 
of our net cash provided by operating activities. 

In  2010,  three  customers  combined  for  approximately  50  percent  of  our  consolidated  operating  revenues.  No 
other  customer  accounted  for  more  than  10  percent  of  consolidated  operating  revenues  in  2010.  In  2009,  two 
customers  accounted  for  approximately  35  percent  of  consolidated  operating  revenues.  In  2008,  one  customer 
accounted for approximately 20 percent of our revenues. No other customer accounted for more than 10 percent of 
consolidated operating revenues in 2010, 2009 or 2008. 

Note 14 — Commitments and Contingencies  

Noble Asset Company Limited (“NACL”), our wholly-owned, indirect subsidiary, was named one of 21 parties 
served  a  Show  Cause  Notice  (“SCN”)  issued  by  the  Commissioner  of  Customs  (Prev.),  Mumbai,  India  (the 
“Commissioner”)  in  August  2003. The  SCN  concerned  alleged  violations  of  Indian  customs  laws  and  regulations 
regarding one of our jackups. The Commissioner alleged certain violations to have occurred before, at the time of, 
and  after  NACL  acquired  the  rig  from  the  rig’s  previous  owner.  In  the  purchase  agreement  for  the  rig,  NACL 
received  contractual  indemnification  against  liability  for  Indian  customs  duty  from  the  rig’s  previous  owner.  In 
connection  with  the  export  of  the  rig  from  India  in  2001,  NACL  posted  a  bank  guarantee  in  the  amount  of  150 
million Indian Rupees (or $3 million at December 31, 2010) and a customs bond in the amount of 970 million Indian 

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NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Rupees (or $22 million at December 31, 2010), both of which remain in place. In March 2005, the Commissioner 
passed an order against NACL and the other parties cited in the SCN seeking (i) to invoke the bank guarantee posted 
on behalf of NACL as a fine, (ii) to demand duty of (a) $19 million plus interest related to a 1997 alleged import and 
(b) $22 million plus interest related to a 1999 alleged import, provided that the duty and interest demanded in (b) 
would not be payable if the duty and interest demanded in (a) were paid by NACL, and (iii) to assess a penalty of 
$500,000  against  NACL.  NACL  appealed  the  order  of  the  Commissioner  to  the  Customs,  Excise  &  Service  Tax 
Appellate  Tribunal  (“CESTAT”).  In  2006,  CESTAT  upheld  NACL’s  appeal  and  overturned  the  Commissioner’s 
March  2005  order  against  NACL  in  its  entirety.  The  Commissioner  filed  an  appeal  in  the  Bombay  High  Court, 
which dismissed the appeal. In 2008, the Commissioner appealed to the Supreme Court of India, appealing the order 
of  the  Bombay  High  Court.  NACL  is  opposing  admission  of  the  Appeal  in  the  Supreme  Court  of  India,  and  is 
seeking  the  return  or  cancellation  of  its  previously  posted  custom  bond  and  bank  guarantee.  NACL  continues  to 
pursue contractual indemnification against liability for Indian customs duty and related costs and expenses against 
the  rig’s  previous  owner  in  arbitration  proceedings  in  London,  which  proceedings  the  parties  have  temporarily 
stayed  pending  further  developments  in  the  Indian  proceeding.  We  do  not  believe  the  ultimate  resolution  of  this 
matter will have a material adverse effect on our financial position, results of operations or cash flows. 

In  May  2010,  Anadarko  Petroleum  Corporation  (“Anadarko”)  sent  a  letter  asserting  that  the  initial  attempted 
deepwater drilling moratorium in the U.S. Gulf of Mexico, issued on May 28, 2010 by U.S. Secretary of the Interior 
Ken Salazar, was an event of force majeure under the drilling contract for the Noble Amos Runner. In June 2010, 
Anadarko filed a declaratory judgment action in Federal District Court in Houston, Texas seeking to have the court 
declare  that  a  force  majeure  condition  had  occurred  and  that  the  drilling  contract  was  terminated  by  virtue  of  the 
initial proclaimed moratorium. We disagree that a force majeure event occurred and that Anadarko had the right to 
terminate  the  contract.  In  August  2010,  we  filed  a  counterclaim  seeking  damages  from  Anadarko  for  breach  of 
contract. We do not believe the ultimate resolution of this matter will have a material adverse effect on our financial 
position,  results  of  operations  or  cash  flows.  Due  to  the  uncertainties  noted  above,  we  have  not  recognized  any 
revenue under the disputed portion of this contract. As the amounts in dispute have been fully reserved, the matter 
could have a material positive effect on our results of operations or cash flows in the period the matter is resolved. 

The Noble Homer Ferrington is under contract with a subsidiary of ExxonMobil Corporation (“ExxonMobil”), 
who  entered  into  an  assignment  agreement  with  BP  for  a  two  well  farmout  of  the  rig  in  Libya  after  successfully 
drilling  two  wells  with  the  rig  for  ExxonMobil.  In  August  2010,  BP  attempted  to  terminate  the  assignment 
agreement claiming that the rig was not in the required condition. ExxonMobil has informed us that we must look to 
BP for payment of the dayrate during the assignment period. In August 2010, we initiated arbitration proceedings 
under the drilling contract against both BP and ExxonMobil. We do not believe BP had the right to terminate the 
assignment  agreement  and  believe  the  rig  continues  to  be  fully  ready  to  operate  under  the  drilling  contract.  We 
believe we are owed dayrate by either or both of these clients. The operating dayrate was approximately $538,000 
per day for the work in Libya. We are proceeding with the arbitration process and intend to vigorously pursue these 
claims. Due to the uncertainties noted above, we have not recognized any revenue during the assignment period. We 
do not believe the ultimate resolution of these matters will have a material effect on our financial position. As the 
amounts  in  dispute  have  been  fully  reserved,  the  matter  could  have  a  material  positive  effect  on  our  results  of 
operations or cash flows in the period the matter is resolved. 

We are from time to time a party to various lawsuits that are incidental to our operations in which the claimants 
seek an unspecified amount of monetary damages for personal injury, including injuries purportedly resulting from 
exposure to asbestos on drilling rigs and associated facilities. At December 31, 2010, there were approximately 36 
of these lawsuits in which we are one of many defendants. These lawsuits have been filed in the United States in the 
states of Louisiana, Mississippi and Texas. We intend to defend vigorously against the litigation. We do not believe 
the  ultimate  resolution  of  these  matters  will  have  a  material  adverse  effect  on  our  financial  position,  results  of 
operations or cash flows. 

We are a defendant in certain claims and litigation arising out of operations in the ordinary course of business, 
including  certain  disputes  with  customers  over  receivables  discussed  in  Note  5,  the  resolution  of  which,  in  the 
opinion of management, will not be material to our financial position, results of operations or cash flows. There is 
inherent risk in any litigation or dispute and no assurance can be given as to the outcome of these claims. 

93 

 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

During  the  fourth  quarter  of  2007,  our  Nigerian  subsidiary  received  letters  from  the  Nigerian  Maritime 
Administration  and  Safety  Agency  (“NIMASA”)  seeking  to  collect  a  two  percent  surcharge  on  contract  amounts 
under  contracts  performed  by  “vessels,”  within  the  meaning  of  Nigeria’s  cabotage  laws,  engaged  in  the  Nigerian 
coastal  shipping  trade.  Although  we  do  not  believe  that  these  laws  apply  to  our  ownership  of  drilling  units, 
NIMASA is seeking to apply a provision of the Nigerian cabotage laws (which became effective on May 1, 2004) to 
our offshore drilling units by considering these units to be “vessels” within the meaning of those laws and therefore 
subject to the surcharge, which is imposed only upon “vessels.” Our offshore drilling units are not engaged in the 
Nigerian coastal shipping trade and are not in our view “vessels” within the meaning of Nigeria’s cabotage laws. In 
January 2008, we filed an originating summons against NIMASA and the Minister of Transportation in the Federal 
High  Court  of  Lagos,  Nigeria  seeking,  among  other  things,  a  declaration  that  our  drilling  operations  do  not 
constitute “coastal trade” or “cabotage” within the meaning of Nigeria’s cabotage laws and that our offshore drilling 
units  are  not  “vessels”  within  the  meaning  of  those  laws.  In  February  2009,  NIMASA  filed  suit  against  us  in  the 
Federal  High  Court  of  Nigeria  seeking  collection  of  the  cabotage  surcharge.  In  August  2009,  the  court  issued  a 
favorable  ruling  in  response  to  our  originating  summons  stating  that  drilling  operations  do  not  fall  within  the 
cabotage laws and that drilling rigs are not vessels for purposes of those laws. The court also issued an injunction 
against  the  defendants  prohibiting  their  interference  with  our  drilling  rigs  or  drilling  operations.  NIMASA  has 
appealed the court’s ruling, although the court dismissed NIMASA’s lawsuit filed against us in February 2009. We 
intend to take all further appropriate legal action to resist the application of Nigeria’s cabotage laws to our drilling 
units.  The  outcome  of  any  such  legal  action  and  the  extent  to  which  we  may  ultimately  be  responsible  for  the 
surcharge is uncertain. If it is ultimately determined that offshore drilling units constitute vessels within the meaning 
of  the  Nigerian  cabotage  laws,  we  may  be  required  to  pay  the  surcharge  and  comply  with  other  aspects  of  the 
Nigerian  cabotage  laws,  which  could  adversely  affect  our  operations  in  Nigerian  waters  and  require  us  to  incur 
additional costs of compliance. 

NIMASA had also informed the Nigerian Content Division of its position that we are not in compliance with the 
cabotage  laws.  The  Nigerian  Content  Division  makes  determinations  of  companies’  compliance  with  applicable 
local content regulations  for  purposes of  government contracting, including contracting  for services in connection 
with oil and gas concessions where the Nigerian national oil company is a partner. The Nigerian Content Division 
had  originally  barred  us  from  participating  in  new  tenders  as  a  result  of  NIMASA’s  allegations,  although  the 
Division reversed its actions based on the favorable Federal High Court ruling. However, no assurance can be given 
with respect to our ability to bid for future work in Nigeria until our dispute with NIMASA is resolved. 

We operate in a number of countries throughout the world and our income tax returns filed in those jurisdictions 
are subject to review and examination by tax authorities within those jurisdictions. We have been informed by the 
U.S.  Internal  Revenue  Service  that  our  2008  tax  return  is  currently  under  audit.  In  addition,  a  U.S.  subsidiary  of 
Frontier is also under audit for its 2007 and 2008 tax returns. Furthermore, we are currently contesting several non-
U.S. tax assessments and may contest future assessments when we believe the assessments are in error. We cannot 
predict  or  provide  assurance  as  to  the  ultimate  outcome  of  the  existing  or  future  assessments.  We  believe  the 
ultimate resolution of the outstanding assessments, for which we have not made any accrual, will not have a material 
adverse effect on our consolidated financial statements. We recognize uncertain tax positions that we believe have a 
greater than 50 percent likelihood of being sustained. 

Certain  of  our  non-U.S.  income  tax  returns  have  been  examined  for  the  2002  through  2008 periods  and  audit 
claims have been assessed for approximately $305 million (including interest and penalties), primarily in Mexico. 
We  do  not  believe  we  owe  these  amounts  and  are  defending  our  position.  However,  we  expect  increased  audit 
activity in Mexico and anticipate the tax authorities will issue additional assessments and continue to pursue legal 
actions  for  all  audit  claims.  We  believe  additional  audit  claims  in  the  range  of  $16  to  $18  million  attributable  to 
other business tax returns may be assessed against us. We have contested, or intend to contest, the audit findings, 
including through litigation if necessary, and we do not believe that there is greater than 50 percent likelihood that 
additional taxes will be incurred. Accordingly, no accrual has been made for such amounts. 

94 

 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

We maintain certain insurance coverage against specified marine perils, including liability for physical damage 
to  our  drilling  rigs,  and  loss  of  hire  on  certain  of  our  rigs.  The  damage  caused  in  2005  and  2008  by  Hurricanes 
Katrina,  Rita  and  Ike  to  oil  and  gas  assets  situated  in  the  U.S.  Gulf  of  Mexico  negatively  impacted  the  energy 
insurance market, resulting in more restricted and more expensive coverage. We also cannot predict what the impact 
of the recent events in the U.S. Gulf of Mexico will have on the cost or availability of future insurance coverage. We 
evaluate and renew our operational insurance policies on a yearly basis during the month of March. 

We have elected to self insure U.S. named windstorm physical damage and loss of hire exposures due to the high 
cost  of  coverage  for  these  perils.  This  self  insurance  applies  only  to  our  units  in  the  U.S.  portion  of  the  Gulf  of 
Mexico. Our rigs located in the Mexican portion of the Gulf of Mexico remain covered by commercial insurance for 
windstorm  damage.  In  addition,  we  maintain  physical  damage  deductibles  of  $25  million  per  occurrence  for  rigs 
located  in  the  U.S.,  Mexico,  Brazil,  Southeast  Asia  and  the  North  Sea  and  $15  million  per  occurrence  for  rigs 
operating in West Africa, the Middle East, India, and the Mediterranean Sea. The loss of hire coverage applies only 
to our rigs operating under contract with a dayrate equal to or greater than $200,000 a day and is subject to a 45-day 
waiting period for each unit and each occurrence. 

Although we maintain insurance in the geographic areas in which  we operate, pollution, reservoir damage and 
environmental risks generally are not fully insurable. Our insurance policies and contractual rights to indemnity may 
not  adequately  cover  our  losses  or  may  have  exclusions  of  coverage  for  some  losses.  We  do  not  have  insurance 
coverage  or  rights  to  indemnity  for  all  risks,  including  loss  of  hire  insurance  on  most  of  the  rigs  in  our  fleet. 
Uninsured  exposures  may  include  expatriate  activities  prohibited  by  U.S.  laws  and  regulations,  radiation  hazards, 
certain loss or damage to property onboard our rigs and losses relating to shore-based terrorist acts or strikes. If a 
significant accident or other  event occurs and is not  fully  covered by  insurance or contractual indemnity, it could 
adversely affect our financial position, results of operations or cash flows. Additionally, there can be no assurance 
that those parties with contractual obligations to indemnify us will necessarily be financially able to indemnify us 
against all these risks. 

We carry protection and indemnity insurance covering marine third party liability exposures, which also includes 
coverage for employer’s liability resulting from personal injury to our offshore drilling  crews. Our protection and 
indemnity  policy  currently  has  a  standard  deductible  of  $10  million  per  occurrence,  with  maximum  liability 
coverage of $750 million. 

In connection with our capital expenditure program, we had outstanding commitments, including shipyard and 
purchase commitments of approximately $1.5 billion at December 31, 2010. Subsequent to December 31, 2010, we 
entered  into  shipyard  commitments  of  approximately  $1.0  billion  in  connection  with  the  signing  of  construction 
contracts for two additional newbuild drillships, and canceled shipyard contracts totaling $77 million in connection 
with the decision not to proceed with the reliability upgrade on the Noble Muravlenko. See Note 19, “Subsequent 
Events,” for additional information regarding these transactions. 

We  have  entered  into  agreements  with  certain  of  our  executive  officers,  as  well  as  certain  other  employees. 
These agreements become effective upon a change of control of Noble-Swiss (within the meaning set forth in the 
agreements) or a termination of employment in connection with or in anticipation of a change of control, and remain 
effective  for  three  years  thereafter.  These  agreements  provide  for  compensation  and  certain  other  benefits  under 
such circumstances. 

Internal Investigation 

In  2007,  we  began,  and  voluntarily  contacted  the  SEC  and  the  U.S.  Department  of  Justice  (“DOJ”)  to  advise 
them of, an  internal investigation of the legality under the  United States Foreign  Corrupt Practices Act (“FCPA”) 
and local laws of certain reimbursement payments made by our Nigerian affiliate to our customs agents in Nigeria. 
In November 2010, we finalized settlements of this matter with each of the SEC and the DOJ. In order to resolve the 
DOJ investigation, we entered into a non-prosecution agreement with the DOJ, which provides for the payment of a 
fine of $2.6 million, as well as certain undertakings, including continued cooperation with the DOJ, compliance with 
the FCPA, certain  self-reporting and annual reporting obligations and certain restrictions on our public discussion 

95 

 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

regarding  the  agreement.  The  agreement  does  not  require  that  we  install  a  monitor  to  oversee  our  activities  and 
compliance with laws. In order to resolve the SEC investigation, we agreed to the entry of a civil judgment against 
us for violations of the FCPA. Pursuant to the agreed judgment, we agreed to disgorge profits of $4.3 million, pay 
prejudgment interest of $1.3 million and refrain from denying the allegations contained in the SEC’s petition, except 
in other litigation to which the SEC is not a party. We also agreed to an injunction restraining us from violating the 
anti-bribery, books and records, and internal controls provisions of the FCPA, and we waived a variety of litigation 
rights with respect to the conduct at issue. The agreed judgment does not require a monitor. Our ability to comply 
with  the  terms  of  the  settlements  is  dependent  on  the  success  of  our  ongoing  compliance  program,  including  our 
ability to continue to manage our agents and supervise, train and retain competent employees, and the efforts of our 
employees to comply with applicable law and our code of business conduct and ethics. 

In January 2011, the Nigerian Economic and Financial Crimes Commission and the Nigerian Attorney General 
Office initiated an investigation into these same activities. A subsidiary of Noble-Swiss resolved this matter through 
the  execution  of  a  non-prosecution  agreement  dated  January  28,  2011.  Pursuant  to  this  agreement,  the  subsidiary 
paid $2.5 million to resolve all charges and claims of the Nigerian government. Any additional sanctions we may 
incur as a result of any such investigation could damage our reputation and result in substantial fines, sanctions, civil 
and/or  criminal  penalties  and  curtailment  of  operations  in  certain  jurisdictions  and  might  adversely  affect  our 
business, results of operations or financial condition. Further, resolving any such investigation could be expensive 
and consume significant time and attention of our senior management. 

We  have  one  jackup  rig  in  Nigeria  which  is  operating  under  a  temporary  import  permit  which  expired  in 
November  2008  and  we  have  a  pending  application  to  renew  this  permit.  We  have  received  approval  from  the 
Nigerian Customs office that we will be allowed to obtain a new temporary import permit for this rig. We recently 
received  a  new  temporary  import  permit  for  another  rig  in  Nigeria  that  had  been  waiting  for  a  temporary  import 
permit  based  on  a  long-standing  application.  We  continue  to  seek  to  avoid  material  disruption  to  our  Nigerian 
operations; however, there can be no assurance that we will be able to obtain new permits or further extensions of 
permits necessary to continue the operation of our rigs in Nigeria. If we cannot obtain a new permit or an extension 
necessary to continue operations of any rig, we may need to cease operations under the drilling contract for such rig 
and  relocate  such  rig  from  Nigerian  waters.  We  cannot  predict  what  impact  these  events  may  have  on  any  such 
contract or our business in Nigeria, and  we could  face additional  fines and sanctions in  Nigeria. Furthermore,  we 
cannot predict what changes, if any, relating to temporary import permit policies and procedures may be established 
or implemented in Nigeria in the future, or how any such changes may impact our business there. 

Note 15 — (Gain)/Loss on Asset Disposal/Involuntary Conversion, Net  

In  May  2009,  our  jackup,  the  Noble  David  Tinsley,  experienced  a  “punch-through”  while  the  rig  was  being 
positioned on location offshore Qatar. The incident involved the sudden penetration of all three legs through the sea 
bottom,  which resulted in severe damage to the legs and the rig. We recorded a charge of $17 million during the 
quarter ended June 30, 2009 related to this involuntary conversion, which includes approximately $9 million for the 
write-off of the damaged legs. 

In  March  2009,  we  recognized  a  charge  of  $12  million  related  to  the  Noble  Fri  Rodli,  a  submersible  that  has 
been  cold  stacked  since  October  2007.  We  recorded  the  charge  as  a  result  of  a  decision  to  evaluate  disposition 
alternatives for this rig. 

During the third quarter of 2008, Hurricane Ike caused damage to certain of our rigs. The $200 million aggregate 
insurance limit available to our rigs operating in the U.S. Gulf of Mexico was sufficient to cover the loss, with the 
exception of the physical damage deductible and the loss of hire waiting period. During 2008, we recorded a charge 
of $10 million, which represents our deductible under our then existing insurance program. 

During the second quarter of 2008,  we sold our North Sea  labor contract drilling services business to Seawell 
Holding UK Limited (“Seawell”) for $35 million plus working capital. This sale included labor contracts covering 
11 platform operations in the United Kingdom sector of the North Sea. In connection with this sale, we recognized a 
gain  of  $36  million,  net  of  closing  costs.  This  gain  included  approximately  $5  million  in  cumulative  currency 
translation adjustments. 

96 

 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Note 16 — Segment and Related Information  

We  report  our  contract  drilling  operations  as  a  single  reportable  segment:  Contract  Drilling  Services.  The 
consolidation of our contract drilling operations into one reportable segment is attributable to how we manage our 
business, and the fact that all of our drilling fleet is dependent upon the worldwide oil industry. The mobile offshore 
drilling units comprising our offshore rig fleet operate in a single, global market for contract drilling services and are 
often redeployed globally due to changing demands of our customers, which consist largely of major non-U.S. and 
government owned/controlled oil and gas companies throughout the  world. Our contract drilling services segment 
conducts contract drilling operations in the Middle East, India, U.S. Gulf of Mexico, Mexico, the North Sea, Brazil 
and West Africa. 

The accounting policies of our reportable segment are the same as those described in the summary of significant 
accounting policies (see Note 1). We evaluate the performance of our operating segment based on revenues from 
external customers and  segment profit. Summarized  financial information of our reportable segment for the  years 
ended December 31, 2010, 2009 and 2008 is shown in the following table. The “Other” column includes results of 
labor contract drilling services, other insignificant operations and corporate related items. 

  Contract 
  Drilling 
  Services 

  Other 

Total 

2010 
Revenues from external customers .......................................................   $  2,771,784  $  35,392  $  2,807,176 
539,829 
Depreciation and amortization..............................................................  
916,080 
Segment operating income ...................................................................  
(9,457) 
Interest expense, net of amount capitalized ..........................................  
(143,077) 
Income tax provision ............................................................................  
Segment profit ......................................................................................  
773,429 
  11,221,321 
Total assets (at end of period)...............................................................  
1,423,484 
Capital expenditures .............................................................................  

(1,123)   
(144,220)   
779,609 
  11,067,360 
1,416,841 

11,818 
(2,125)   
(8,334)   
1,143 
(6,180)   

  153,961 
6,643 

528,011 
918,205 

2009 
Revenues from external customers .......................................................   $  3,607,219  $  33,565  $  3,640,784 
Depreciation and amortization..............................................................  
408,313 
2,010,744 
Segment operating income ...................................................................  
(1,685) 
Interest expense, net of amount capitalized ..........................................  
Income tax provision ............................................................................  
(337,260) 
1,678,642 
Segment profit ......................................................................................  
8,396,896 
Total assets (at end of period)...............................................................  
1,431,498 
Capital expenditures .............................................................................  

9,740 
2,040 
(1,021)   
210 
6,700 
  127,415 
64,402 

(664)   
(337,470)   
1,671,942 
8,269,481 
1,367,096 

398,573 
2,008,704 

2008 
Revenues from external customers .......................................................   $  3,376,224  $  70,277  $  3,446,501 
Depreciation and amortization..............................................................  
356,658 
1,908,403 
Segment operating income ...................................................................  
(4,388) 
Interest expense, net of amount capitalized ..........................................  
Income tax provision ............................................................................  
(351,463) 
1,560,995 
Segment profit ......................................................................................  
7,106,799 
Total assets (at end of period)...............................................................  
1,231,321 
Capital expenditures .............................................................................  

(491)   
(1,158)   
41,015 
  572,233 
48,184 

(3,897)   
(350,305)   
1,519,980 
6,534,566 
1,183,137 

349,448 
1,867,262 

7,210 
41,141 

97 

 
 
 
 
 
 
  
  
  
 
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

The  following  table  presents  revenues  and  identifiable  assets  by  country  based  on  the  location  of  the  service 

provided: 

2008 

2010 

—   
568,392   

Identifiable Assets 
As of December 31, 
2009 

2008 
676,225  $  4,070,858  $  2,649,411  $  2,045,968 
United States.................  $ 
Benin ............................ 
— 
— 
Brunei ........................... 
Brazil ............................ 
848,455 
— 
Cameroon ..................... 
21,040 
Canada .......................... 
China (2)....................... 
797,854 
24,377 
Denmark ....................... 
257,087 
Equatorial Guinea ......... 
India.............................. 
107,911 
— 
Ivory Coast ................... 
— 
Libya............................. 
— 
Malta (1) ....................... 
823,462 
Mexico.......................... 
136,545 
Nigeria .......................... 
481,724 
Qatar ............................. 
905,107 
Singapore (2) ................ 
— 
Switzerland (3) ............. 
69,837 
The Netherlands............ 
243,640 
United Arab Emirates ... 
343,792 
United Kingdom ........... 
Other ............................. 
— 
Total..............................  $  2,807,176  $  3,640,784  $  3,446,501  $ 11,221,321  $  8,396,896  $  7,106,799 
____________ 

—   
—   
1,824,190    2,275,550   
57,635   
15,540   
261,469   
41,226   
—   
67,905   
—   
219,391   
—   
796,570   
80,579   
384,725   
578,500   
38,483   
387,516   
132,247   
410,149   
—     

Revenues 
Year Ended December 31, 
2009 
811,538  $ 
11,976 
— 
372,750 
— 
33,338 
— 
127,149 
— 
121,604 
49,135 
132,572 
— 
839,312 
153,948 
348,028 
— 
— 
333,440 
68,348 
237,418 
228 

2010 
550,683  $ 
— 
49,487 
527,678 
21,991 
35,292 
— 
— 
— 
108,190 
— 
75,390 
— 
553,209 
135,096 
158,107 
32,212 
— 
238,460 
56,388 
264,891 
102 

51,098   
15,333   
570,985   
—   
—   
123,271   
—   
—   
205,483   
629,024   
162,014   
364,739   
1,283,071   
35,687   
629,859   
361,626   
325,691   
—     

— 
— 
268,778 
— 
37,953 
— 
69,417 
115,669 
80,669 
— 
— 
— 
678,001 
304,844 
438,754 
— 
— 
303,313 
186,601 
285,902 
375 

(1)  Assets in Malta are related to a semisubmersible rig that is currently available and is being marketed; however, 

no revenue was earned by this rig during the period while in this jurisdiction. 

(2)  China and Singapore primarily consist of asset values for newbuild rigs under construction in shipyards. 

(3)  Switzerland assets consist of general corporate assets which generate no external revenue for the Company. 

Note 17 — Other Financial Information  

The following are Swiss statutory disclosure requirements:  

(i) Expenses 

Total  personnel  expenses  amounted  to  $649  million,  $564  million  and  $581  million  for  the  years  ended 

December 31, 2010, 2009 and 2008, respectively. 

(ii) Fire Insurance 

Total fire insurance values of property and equipment amounted to $8.3 billion and $8.2 billion at December 31, 

2010 and 2009, respectively. 

(iii) Risk assessment and Management 

The Board of Directors, together with the management of Noble, is responsible for assessing risks related to the 
financial reporting process and for establishing and maintaining adequate internal control over financial reporting. 
Internal control over financial reporting is a process designed by, or under the supervision of the Chief Executive 
Officer and Chief Financial Officer to provide reasonable assurance regarding the reliability of financial reporting 
and the preparation of Noble’s consolidated financial statements for external purposes in accordance with GAAP. 

98 

 
 
 
 
  
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
  
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

The  Board,  operating  through  its  Audit  Committee  composed  entirely  of  directors  who  are  not  officers  or 
employees of the Company, is responsible for oversight of the financial reporting process and safeguarding of assets 
against  unauthorized  acquisition,  use,  or  disposition.  The  Audit  Committee  meets  with  management,  the 
independent  registered  public  accountants  and  the  internal  auditor;  approves  the  overall  scope  of  audit  work  and 
related  fee  arrangements;  and  reviews  audit  reports  and  findings.  In  addition,  the  independent  registered  public 
accountants and the internal auditor meet separately with the Audit Committee, without management representatives 
present,  to  discuss  the  results  of  their  audits;  the  adequacy  of  the  Company’s  internal  control;  the  quality  of  its 
financial reporting; and the safeguarding of assets against unauthorized acquisition, use, or disposition. 

Note 18 — Information about Noble-Cayman  

Reclassifications 

Noble-Cayman  historically  recorded  distributions  to  Noble-Swiss  as  “Due  from  affiliate”  in  its  consolidated 
balance  sheet  and  classified  the  related  cash  flows  as  cash  flows  from  operating  activities  based  on  nature  of  the 
activity and the legal character of the distributions. However, based on Noble-Cayman’s current plan to discharge 
the receivables from Noble-Swiss through the declaration of dividends, Noble-Cayman has determined that it will 
present the distributions as a direct reduction of retained earnings and classify the related cash flows as cash flows 
from financing activities.  Accordingly, prior year amounts  were reclassified in the consolidated balance sheet and 
statements of cash flows and of equity to conform to the current year presentation. 

Guarantees of Registered Securities 

Noble-Cayman  and  Noble  Holding  (U.S.)  Corporation  (“NHC”),  each  a  wholly-owned  subsidiary  of  Noble-
Swiss,  are  full  and  unconditional  guarantors  of  NDC’s  7.50%  Senior  Notes  due  2019  which  had  an  outstanding 
principal balance at December 31, 2010 of $202 million.  NDC is an indirect,  wholly-owned subsidiary of Noble-
Swiss and a direct, wholly-owned subsidiary of NHC. In December 2005, Noble Drilling Holding LLC (“NDH”), an 
indirect  wholly-owned  subsidiary  of  Noble-Swiss,  became  a  co-obligor  on  (and  effectively  a  guarantor  of)  the 
7.50% Senior Notes. 

In  connection  with  our  worldwide  internal  restructuring  completed  during  2009,  prior  to  December  31,  2009, 
Noble Drilling Services 1 LLC (“NDS1”), an indirect wholly-owned subsidiary of Noble-Swiss, became a co-issuer 
of the 7.50% Senior Notes. Subsequent to December 31, 2009, NDS1 merged with Noble Drilling Services 6 LLC 
(“NDS6”), also an indirect wholly-owned subsidiary of Noble-Swiss, as part of the internal restructuring. NDS6 was 
the surviving company in this merger and assumed NDS1’s obligations under, and became a co-issuer of, the 7.50% 
Senior Notes. 

In  connection  with  the  issuance  of  Noble-Cayman’s  5.875%  Senior  Notes  due  2013,  NDC  guaranteed  the 
payment  of  the  5.875%  Senior  Notes.  In  connection  with  the  worldwide  internal  restructuring,  NHIL,  an  indirect 
wholly-owned  subsidiary  of  Noble-Cayman  and  Noble-Swiss,  also  guaranteed  the  payment  of  the  5.875%  Senior 
Notes.  NDC’s  and  NHIL’s  guarantees  of  the  5.875%  Senior  Notes  are  full  and  unconditional.  The  outstanding 
principal balance of the 5.875% Senior Notes at December 31, 2010 was $300 million. 

In November 2008, NHIL issued $250 million principal amount of 7.375% Senior Notes due 2014,  which are 
fully  and  unconditionally  guaranteed  by  Noble-Cayman.  The  outstanding  principal  balance  of  the  7.375%  Senior 
Notes at December 31, 2010 was $250 million. 

In connection with the Frontier acquisition, in July 2010, NHIL issued a total of $1.25 billion principal amount 
of senior notes in three separate tranches, comprising $350 million of 3.45% Senior Notes due 2015, $500 million of 
4.90%  Senior  Notes  due  2020  and  $400  million  of  6.20%  Senior  Notes  due  2040.  Noble-Cayman  fully  and 
unconditionally  guaranteed  the  notes  on  a  senior  unsecured  basis.  The  aggregate  principal  balance  of  these  three 
tranches of senior notes at December 31, 2010 was $1.25 billion. 

The  following  consolidating  financial  statements  of  Noble-Cayman,  NHC  and  NDH  combined,  NDC,  NHIL, 
NDS6  and  all  other  subsidiaries  present  investments  in  both  consolidated  and  unconsolidated  affiliates  using  the 
equity method of accounting. 

99 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONDENSED CONSOLIDATING BALANCE SHEET 
December 31, 2010 
(in thousands) 

  Noble- 
  Cayman 

 NHC and NDH 
  Combined 

  NDC 

  NHIL 

  NDS6 

Other 
 Non-guarantor 
  Subsidiaries 
of Noble 

 Consolidating 
  Adjustments   

  Total 

ASSETS 
Current assets 

$ 

Cash and cash equivalents...... 
Accounts receivable ............... 
Prepaid expenses.................... 
Short-term notes receivable 

from affiliates....................... 

Accounts receivable from 

affiliates ............................... 
Other current assets................ 
Total current assets............. 

42  $   
— 
— 

— 

607,207 
7,057 
614,306 

6,984 
310 

119,476 

— 
76,789 
203,705 

146  $ 

—  $ 

1,795 
— 

— 

—  $ 
— 
— 

—  $  
— 
— 

333,211  $ 
378,635 
32,922 

—  $ 
— 
— 

333,399 
387,414 
33,232 

— 

— 

75,000 

(194,476)   

— 

751,623 
240 
753,658 

199,235 
19,980 
219,215 

1,958 
9,416 
11,374 

3,646,623 
208,075 
4,674,466 

(5,206,646)   
(251,736)   
(5,652,858)   

— 
69,821 
823,866 

Property and equipment 

Drilling equipment, facilities 

and other .............................. 
Accumulated depreciation.......... 

Total property and 

equipment, net.................. 

— 
— 

— 

1,254,482 
(153,638)   

70,945 
(50,250) 

1,100,844 

20,695 

— 
— 

— 

— 
— 

— 

11,289,547 
(2,391,066)     

— 
— 

  12,614,974 
  (2,594,954) 

8,898,481 

— 

  10,020,020 

Notes receivable from affiliates...... 
Investments in affiliates ............. 
Other assets................................ 
Total assets......................... 

  3,507,062 
  6,835,466 
1,872 
$ 10,958,706  $   

675,000 
9,150,129 
7,700 

— 
  3,561,451 
2,451 

  1,239,600 
  5,618,248 
11,336 

479,107 
  1,879,831 
1,001 

11,137,378  $ 4,338,255  $ 7,088,399  $ 2,371,313  $  

2,492,900 
— 
318,232 
16,384,079  $ 

(8,393,669)   
(27,045,125)   

— 
— 
342,592 
(41,091,652)  $ 11,186,478 

— 

LIABILITIES AND EQUITY 
Current liabilities 

Short-term notes payables 

from affiliates....................... 

$ 

25,000  $   

50,000  $ 

—  $ 

—  $ 

—  $  

119,476  $ 

(194,476)  $ 

— 

Current maturities of long-

term debt .............................. 
Accounts payable and accrued 
liabilities .............................. 
Accounts payable to affiliates .... 
Total current liabilities ....... 

1,473 
  1,601,869 
  1,628,342 

Long-term debt .......................... 
Notes payable to affiliates.......... 
Other liabilities .......................... 
Total liabilities ................... 

339,911 
  1,834,500 
19,929 
  3,822,682 

Commitments and  

contingencies 

— 

— 

— 

— 

— 

80,213 

19,218 
2,695,651 
2,764,869 

— 
1,092,000 
48,595 
3,905,464 

8,779 
30,095 
38,874 

31,973 
64,192 
96,165 

4,413 
7,134 
11,547 

— 
120,000 
25,485 
184,359 

  1,498,066 
550,000 
— 
  2,144,231 

201,695 
811,000 
— 
  1,024,242 

566,422 
1,059,441 
1,825,552 

646,812 
3,986,169 
432,839 
6,891,372 

— 

— 

(5,458,382)   
(5,652,858)   

80,213 

632,278 
— 
712,491 

— 

(8,393,669)   

  2,686,484 
— 
526,848 
(14,046,527)    3,925,823 

— 

Noncontrolling interest .............. 

— 

— 

— 

— 

— 

124,631 

— 

124,631 

Equity ........................................ 
Total liabilities and equity...... 

  7,136,024 
$ 10,958,706  $   

7,231,914 

  4,153,896 

  4,944,168 

  1,347,071 

9,368,076 

11,137,378  $ 4,338,255  $ 7,088,399  $ 2,371,313  $  

16,384,079  $ 

(27,045,125)    7,136,024 
(41,091,652)  $ 11,186,478 

100 

 
 
 
  
  
  
  
  
 
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
 
 
 
  
  
  
  
  
 
 
 
   
 
 
 
 
 
   
 
 
 
   
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONDENSED CONSOLIDATING BALANCE SHEET 
December 31, 2009 
(in thousands) 

  Noble- 
  Cayman   

 NHC and NDH 
  Combined 

  NDC 

  NHIL 

  NDS6 

Other 
 Non-guarantor 
  Subsidiaries 
of Noble 

 Consolidating 
 Adjustments   

  Total 

$ 

3  $   

— 
— 

50,394 

— 
109 
50,506 

ASSETS 
Current assets 

Cash and cash equivalents......... 
Accounts receivable .................. 
Prepaid expenses....................... 
Accounts receivable from 

affiliates .................................. 

Short-term notes receivable 

from affiliates.......................... 
Other current assets................... 
Total current assets................ 

Property and equipment 

Drilling equipment, facilities 

and other ................................. 
Accumulated depreciation............. 

Total property and 

equipment, net..................... 

268  $ 

7,509 
275 

—  $ 
— 
— 

—  $ 
— 
— 

—  $  
— 
— 

725,954  $ 
639,945 
26,014 

—  $  726,225 
647,454 
— 
26,289 
— 

35,778 

573,238 

251,232 

168,681 
57,484 
269,995 

— 
— 
573,238 

— 
— 
251,232 

— 
— 

— 

1,419,193 
(120,862)   

69,601 
(47,585)   

1,298,331 

22,016 

— 
— 

— 

2,663 

— 
— 
2,663 

— 
— 

— 

2,796,109 

(3,709,414) 

— 

— 
149,806 
4,337,828 

(168,681) 
(134,482) 
(4,012,577) 

— 
72,917 
  1,472,885 

7,293,370 
(2,007,328)     

— 
— 

  8,782,164 
  (2,175,775) 

5,286,042 

— 

  6,606,389 

Notes receivable from affiliates .... 
Investments in affiliates ................ 
Other assets................................... 
Total assets............................ 

  3,507,062 
  4,258,135 
2,735 
$ 7,818,438  $   

— 
8,423,518 
8,227 

— 
  3,709,623 
772 

— 
  4,578,138 
1,744 

479,107 
  1,403,805 
1,122 

10,000,071  $ 4,305,649  $  4,831,114  $ 1,886,697  $  

1,964,821 
— 
264,539 
11,853,230  $ 

(5,950,990) 
(22,373,219) 
— 

— 
— 
279,139 
(32,336,786)  $ 8,358,413 

LIABILITIES AND EQUITY 
Current liabilities 

Short-term notes payables from 
affiliates .................................. 

Accounts payable and accrued 

liabilities ................................. 
Accounts payable to affiliates ... 
Total current liabilities .......... 

1,468 
609,075 
610,543 

Long-term debt ............................. 
Notes payable to affiliates............. 
Other liabilities ............................. 
Total liabilities ...................... 

299,874 
129,900 
19,929 
  1,060,246 

Commitments and contingencies 

$ 

—  $   

—  $ 

—  $ 

—  $ 

—  $  

168,681  $ 

(168,681)  $ 

— 

10,815 
1,922,049 
1,932,864 

— 
1,164,921 
41,501 
3,139,286 

9,067 
24,462 
33,529 

— 
120,000 
23,883 
177,412 

5,382 
25,148 
30,530 

249,377 
550,000 
— 
829,907 

4,412 
2 
4,414 

201,695 
— 
— 
206,109 

394,763 
1,263,160 
1,826,604 

— 
3,986,169 
338,055 
6,150,828 

— 
(3,843,896) 
(4,012,577) 

425,907 
— 
425,907 

— 
(5,950,990) 
— 
(9,963,567) 

750,946 
— 
423,368 
  1,600,221 

Equity ........................................... 
Total liabilities and equity..... 

  6,758,192 
$ 7,818,438  $   

6,860,785 

  4,128,237 

  4,001,207 

  1,680,588 

10,000,071  $ 4,305,649  $  4,831,114  $ 1,886,697  $  

5,702,402 
11,853,230  $ 

(22,373,219) 
  6,758,192 
(32,336,786)  $ 8,358,413 

101 

 
 
 
 
 
  
  
  
  
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
 
 
 
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONDENSED CONSOLIDATING STATEMENT OF INCOME 
Year Ended December 31, 2010 
(in thousands) 

  Noble- 
  Cayman 

 NHC and NDH 
  Combined 

  NDC   

  NHIL 

  NDS6 

Other 
 Non-guarantor 
  Subsidiaries 
of Noble 

 Consolidating 
  Adjustments   

  Total 

$ 

—  $ 
— 
— 
— 
— 

94,027  $ 17,942  $ 
1,483 
— 
78 
95,588 

71 
— 
— 
  18,013 

—  $ 
— 
— 
— 
— 

—  $   
— 
— 
— 
— 

2,621,424  $  
75,277 
32,520 
2,254 
2,731,475 

(37,900)  $ 2,695,493 
76,831 
32,520 
2,332 
  2,807,176 

— 
— 
— 
(37,900) 

Operating revenues 

Contract drilling services ................. 
Reimbursables.................................. 
Labor contract drilling services ........ 
Other................................................ 
Total operating revenues .............. 

Operating costs and expenses 

Contract drilling services ................. 
Reimbursables.................................. 
Labor contract drilling services ........ 
Depreciation and amortization ......... 
Selling, general and administrative.......  

Total operating costs and 

24,103 
— 
— 
— 
7,979 

40,994 
1,641 
— 
37,324 
4,674 

6,363 
66 
— 
3,449 
2 

42,932 
— 
— 
— 
30,210 

— 
— 
— 
— 
1 

1 

1,096,309 
57,707 
22,056 
498,231 
12,702 

(37,900) 
— 
— 
— 
— 

  1,172,801 
59,414 
22,056 
539,004 
55,568 

1,687,005 

(37,900) 

  1,848,843 

expenses..................................... 

32,082 

84,633 

9,880 

73,142 

Operating income (loss) ..................... 

(32,082)   

10,955 

8,133 

(73,142) 

(1) 

1,044,470 

— 

958,333 

Other income (expense) 

Equity earnings in affiliates (net of 

tax)................................................. 

870,322 

620,747 

  24,898 

  1,040,110 

  407,435 

— 

(2,963,512) 

— 

Interest expense, net of amounts 

capitalized...................................... 
Interest income and other, net .......... 

(29,459)   
6,753 

(65,056)   
28,452 

(7,375) 
3 

(43,988) 
19,980 

(7,956) 
9,416 

(1,888)   
90,188 

146,265 
(146,265) 

(9,457) 
8,527 

Income before income taxes .............. 
Income tax (provision) benefit ......... 
Net Income ...................................... 

815,534 
— 
815,534 

595,098 
(32,878)   
562,220 

  25,659 
— 
  25,659 

  942,960 
— 
  942,960 

  408,894 
— 
  408,894 

1,132,770 
(108,988)     
1,023,782 

(2,963,512) 
— 
(2,963,512) 

957,403 
(141,866) 
815,537 

Income/(loss) attributable to 

noncontrolling interests.................. 

— 

— 

— 

— 

— 

(3)     

— 

(3) 

Net income .......................................... 

$  815,534  $ 

562,220  $ 25,659  $  942,960  $ 408,894  $   

1,023,779  $  

(2,963,512)  $  815,534 

102 

 
 
 
 
 
  
  
  
  
  
 
  
  
 
  
  
  
  
  
  
 
  
  
  
 
 
 
 
  
  
  
  
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONDENSED CONSOLIDATING STATEMENT OF INCOME 
Year Ended December 31, 2009 
(in thousands) 

Operating revenues 

Contract drilling services ................  
Reimbursables.................................  
Labor contract drilling services .......  
Other...............................................  
Total operating revenues .............  

Operating costs and expenses 

Contract drilling services ................  
Reimbursables.................................  
Labor contract drilling services .......  
Depreciation and amortization ........  
Selling, general and administrative....... 
Loss on asset disposal/involuntary 

conversion, net ..............................  
Total operating costs and 

expenses....................................  

  Noble- 
  Cayman   

 NHC and NDH 
  Combined 

  NDC 

  NHIL 

  NDS6 

Other 
 Non-guarantor 
  Subsidiaries 
of Noble 

 Consolidating 
  Adjustments   

  Total 

$ 

—  $ 
— 
— 
— 
— 

145,687  $  40,366  $ 

1,904 
— 
57 
147,648 

— 
— 
2 
40,368 

—  $ 
— 
— 
— 
— 

—  $   
— 
— 
— 
— 

3,386,684  $  
97,297 
30,298 
1,098 
3,515,377 

(62,982)  $ 3,509,755 
99,201 
30,298 
1,157 
  3,640,411 

— 
— 
— 
(62,982) 

956 
— 
— 
— 
19,394 

— 

33,587 
1,070 
— 
32,158 
2,595 

7,070 
— 
— 
8,535 
436 

— 

— 

20,350 

69,410 

16,041 

53 
— 
— 
— 
— 

— 

53 

— 
— 
— 
— 
— 

— 

— 

— 

1,028,080 
83,965 
18,827 
367,620 
36,118 

(62,982) 
— 
— 
— 
— 

  1,006,764 
85,035 
18,827 
408,313 
58,543 

30,839 

— 

30,839 

1,565,449 

(62,982) 

  1,608,321 

1,949,928 

— 

  2,032,090 

Operating income (loss) ....................  

(20,350)   

78,238 

24,327 

(53) 

Other income (expense) 

Equity earnings in affiliates (net of 

tax)................................................  

  1,724,115 

1,438,451 

  488,802 

  1,300,141 

  224,535 

— 

(5,176,044) 

— 

Interest expense, net of amounts 

capitalized.....................................  
Interest income and other, net .........  

(5,080)   
1,313 

(63,316) 
(459) 

(15,106)   

2 

(25,143) 
— 

— 
— 

5,289 
107,625 

101,671 
(101,671) 

(1,685) 
6,810 

Income before income taxes .............  
Income tax (provision) benefit ........  
Net income .........................................  

  1,699,998 
383 

1,452,914 
(7,082) 

  498,025 
— 

  1,274,945 
— 

  224,535 
— 

$ 1,700,381  $ 

1,445,832  $ 498,025  $ 1,274,945  $  224,535  $   

2,062,842 
(330,135)     
1,732,707  $  

(5,176,044) 
— 

  2,037,215 
(336,834) 
(5,176,044)  $ 1,700,381 

103 

 
 
 
 
 
  
  
  
  
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
 
 
 
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONDENSED CONSOLIDATING STATEMENT OF INCOME 
Year Ended December 31, 2008 
(in thousands) 

  Noble- 
  Cayman   

NHC and NDH 
  Combined 

  NDC 

  NHIL 

Other 
Non-guarantor 
  Subsidiaries 
of Noble 

Consolidating 
 Adjustments   

  Total 

Operating revenues 

Contract drilling services .........   $ 
Reimbursables..........................  
Labor contract drilling services...... 
Other........................................  
Total operating revenues ......  

Operating costs and expenses 

Contract drilling services .........  
Reimbursables..........................  
Labor contract drilling services...... 
Depreciation and amortization....... 
Selling, general and 
administrative.........................  
Gain on asset disposal/ 
  involuntary conversion, net....  
Total operating costs and 
expenses .............................  

—  $   
— 
— 
— 
— 

22,789 
— 
— 
— 

9,713 

— 

251,285  $  46,742  $ 

1,701 
— 
(8)   

214 
— 
1 
  46,957 

252,978 

38,014 
1,227 
— 
34,025 

  19,095 
195 
— 
6,947 

5,886 

1,550 

— 

— 

32,502 

79,152 

  27,787 

—  $   
— 
— 
— 
— 

3,101,523  $  
88,934 
55,078 
1,731 
3,247,266 

(100,700)  $ 3,298,850 
90,849 
55,078 
1,724 
(100,700)    3,446,501 

— 
— 
— 

51 
— 
— 
— 

— 

— 

51 

1,032,633 
77,905 
42,573 
315,686 

56,994 

(26,485)     

(100,700)    1,011,882 
79,327 
42,573 
356,658 

— 
— 
— 

— 

— 

74,143 

(26,485) 

1,499,306 

(100,700)    1,538,098 

Operating income (loss) ............  

(32,502)   

173,826 

  19,170 

(51)   

1,747,960 

— 

  1,908,403 

Other income (expense) 

Equity earnings in affiliates 
(net of tax)..............................  
Interest expense, net of 
amounts capitalized................  
Interest income and other, net ...... 

  1,596,506 

1,491,354 

  452,252 

  1,004,775 

— 

(4,544,887)   

— 

(9,990)   
8,732 

(71,199)   
2,428 

— 
— 

(1,209)   
— 

(10,580)   
85,873 

88,590 
(88,590)   

(4,388) 
8,443 

Income before income taxes......  
Income tax (provision) benefit..... 

  1,562,746 

(1,751)   

1,596,409 
8,280 

  471,422 
  (18,996)   

  1,003,515 
— 

Net income .................................   $ 1,560,995  $   

1,604,689  $ 452,426  $ 1,003,515  $   

1,823,253 
(338,996)     
1,484,257  $  

(4,544,887)    1,912,458 
(351,463) 
(4,544,887)  $ 1,560,995 

— 

104 

 
 
 
 
 
  
  
  
  
  
  
  
 
  
  
  
 
  
  
  
 
 
 
 
  
  
  
  
  
 
 
   
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS 
Year Ended December 31, 2010 
(in thousands) 

  Noble- 
  Cayman 

 NHC and NDH 
  Combined 

  NDC 

  NHIL 

  NDS6   

Other 
 Non-guarantor 
  Subsidiaries 
of Noble 

 Consolidating 
  Adjustments   

  Total 

Cash flows from operating 

activities 

Net cash from operating 

activities ................................   $ 

(33,316)  $ 

4,469  $  1,810  $ 

(80,151)  $  1,581  $   

1,781,974  $   

—  $  1,676,367 

Cash flows from investing 

activities 

New construction and capital 

expenditures...............................    
Notes receivable from affiliates....    

Acquisition of FDR Holdings, Ltd., 

— 
— 

(563,095) 
— 

— 
— 

— 
  (1,239,600) 

net of cash received ........................     (1,629,644)   

— 

— 

— 

Net cash from investing 

activities ................................     (1,629,644)   

(563,095) 

— 

  (1,239,600) 

Cash flows from financing 

activities 

Proceeds from issuance of senior 

notes, net of debt issuance 
costs...........................................    

Proceeds from issuance of notes 

to joint venture partner...............    

Borrowings on bank credit 

— 

— 

— 

— 

— 

  1,238,074 

— 

— 

— 
— 

— 

— 

— 

— 

facility........................................    
Settlement of interest rate swaps ..    
(462,967)   
Distributions to parent 
Advances (to) from affiliates ........    
356,366 
Notes payable to affiliates ............     1,729,600 

40,000 
— 

Net cash from financing 

— 
— 
— 
558,504 
— 

— 
— 
— 
(1,810)   
— 

— 
— 
— 
81,677 
— 

— 
— 
— 
(1,581)   
— 

(720,375) 
(490,000) 

— 
  1,729,600 

(1,283,470) 
— 

— 

— 

(1,629,644) 

(1,210,375) 

  1,729,600 

(2,913,114) 

— 

35,000 

— 
(6,186) 
— 
(993,156) 
— 

— 

— 

— 
— 
— 
— 
  (1,729,600) 

1,238,074 

35,000 

40,000 
(6,186) 
(462,967) 
— 
— 

activities ................................     1,662,999 

558,504 

(1,810)    1,319,751 

(1,581)   

(964,342) 

  (1,729,600) 

843,921 

Net increase (decrease) in 

cash and cash equivalents ......    

Cash and cash equivalents, 

beginning of period.......................    

Cash and cash equivalents, end of 

period ............................................   $ 

39 

3 

(122) 

268 

— 

— 

— 

— 

— 

— 

(392,743) 

725,954 

— 

— 

(392,826) 

726,225 

42  $ 

146  $ 

—  $ 

—  $ 

—  $   

333,211  $   

—  $ 

333,399 

105 

 
 
 
 
  
  
  
  
  
  
 
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
 
 
  
  
  
  
  
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS 
Year Ended December 31, 2009 
(in thousands) 

  Noble- 
  Cayman   

 NHC and NDH 
  Combined 

  NDC 

  NHIL   

  NDS6   

Other 
 Non-guarantor 
  Subsidiaries 
of Noble 

 Consolidating 
  Adjustments   

  Total 

Cash flows from operating activities 

Net cash from operating activities ....   $ 

11,850  $ 

47,633  $  31,136  $  3,526  $  3,290  $   

2,051,200  $   

—  $  2,148,635 

Cash flows from investing activities 

New construction and capital 

expenditures.......................................    
Repayments of notes from affiliates .....    
Notes receivable from affiliates............    
Other....................................................    
Net cash from investing activities.....    

— 
— 

(45,600)   

— 

(717,148)   

— 
20,963 
— 

(45,600)   

(696,185)   

(16,037) 
— 
44,159 
— 
28,122 

— 
— 
— 
— 
— 

— 
— 
— 
— 
— 

Cash flows from financing activities 

Payments of other long-term debt ........    
Distributions to parent..........................    
Advances (to) from affiliates................    
Repayments of notes to affiliates .........    
Repurchases of ordinary shares ............    
Other....................................................    
Net cash from financing activities ....    
Net increase (decrease) in cash and 

— 

(218,258)   
629,117 
(300,000)   
(60,867)   
(16,900)   
33,092 

— 
— 
690,875 
(42,500)   

— 
— 
648,375 

  (150,000) 
— 
90,716 
— 
— 
— 
(59,284) 

cash equivalents .............................    

(658)   

(177)   

661 

445 

(26) 

26 

Cash and cash equivalents, beginning 
of period................................................    
Cash and cash equivalents, end of 
period....................................................   $ 

— 
— 
(3,526) 
— 
— 
— 
(3,526) 

— 

— 

— 
— 
(3,290)   
— 
— 
— 
(3,290)   

— 

— 

(733,811) 
— 
342,500 
— 
(391,311) 

(22,700) 
— 
(1,403,892) 
(19,522) 
— 
— 
(1,446,114) 

213,775 

512,179 

— 
45,600 
(407,622)   

  (1,466,996) 
45,600 
(45,600) 
— 
(362,022)    (1,466,996) 

— 

— 
— 
— 
362,022 
— 
— 
362,022 

— 

— 

(172,700) 
(218,258) 
— 
— 
(60,867) 
(16,900) 
(468,725) 

212,914 

513,311 

3  $ 

268  $ 

—  $  —  $  —  $   

725,954  $   

—  $ 

726,225 

106 

 
 
 
 
 
  
  
  
  
  
  
  
 
  
  
  
 
  
  
  
  
  
  
 
 
 
  
  
  
  
  
 
 
   
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS 
Year Ended December 31, 2008 
(in thousands) 

  Noble- 
 Cayman  

 NHC and NDH 
  Combined 

  NDC   

  NHIL   

Other 
 Non-guarantor 
  Subsidiaries 
of Noble 

Consolidating 
 Adjustments   

  Total 

Cash flows from operating 
activities 

Net cash from operating 

activities...................................  $  21,672  $ 

189,673  $ 17,522  $ 

(1,202)  $   

1,660,527  $ 

—  $  1,888,192 

Cash flows from investing 
activities 
New construction and capital 

expenditures .................................   

Repayments of notes from 

affiliates .......................................   
Notes receivable from affiliates......   
Other ..............................................   

Net cash from investing 

activities...................................   

Cash flows from financing 
activities 
Borrowings on bank credit 

— 

— 
— 
— 

— 

(799,736)    (9,350)   

— 
— 
— 

— 
— 
— 

(799,736)    (9,350)   

— 

— 
— 
— 

— 

(381,405)   

— 

(1,190,491) 

21,065 
(315,600)   
61,198 

(21,065)   
315,600 
— 

— 
— 
61,198 

(614,742)   

294,535 

(1,129,293) 

facilities........................................   

30,000 

Payments on bank credit facilities .....     (130,000)   
Payments of other long-term debt......    
— 
Advances (to)/from affiliates..........    296,394 
Notes payable to affiliates ..............    315,600 
Repayments of notes to affiliates....   
— 
Proceeds from issuance of senior 

notes, net ......................................   

— 

Dividends paid ...............................    (244,198)   
Repurchases of ordinary shares ......    (314,122)   
Other ..............................................   

12,771 

Net cash from financing 

— 
— 
— 
631,573 
— 

(21,065)   

— 
— 
— 

— 
— 
— 
  (8,219)    (248,036) 
— 
— 

— 
— 

— 
— 
— 
— 

— 
— 
— 
— 

  249,238 
— 
— 
— 

— 
— 

(10,335)   
(671,712)   

— 
— 

— 
— 
— 
— 

— 
— 
— 
— 

(315,600)   
21,065 

— 
— 
— 
— 

30,000 
(130,000) 
(10,335) 
— 
— 
— 

249,238 
(244,198) 
(314,122) 
12,771 

activities...................................   

(33,555)   

610,508 

  (8,219)   

1,202 

(682,047)   

(294,535)   

(406,646) 

Net increase (decrease) in cash 

and cash equivalents.................   

(11,883)   

Cash and cash equivalents, 
beginning of period ........................   
Cash and cash equivalents, end of 
period ..............................................  $ 

12,544 

445 

— 

(47)   

73 

— 

— 

363,738 

148,441 

— 

— 

352,253 

161,058 

661  $ 

445  $ 

26  $ 

—  $   

512,179  $ 

—  $ 

513,311 

107 

 
 
 
 
  
  
  
  
  
  
  
  
 
  
  
  
  
  
  
 
 
 
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Note 19 — Subsequent Events  

In  January  2011,  we  received  notice  from  Marathon  Oil  Company  (“Marathon”)  that  they  are  terminating  the 
drilling contract for the ultra-deepwater semisubmersible drilling rig Noble Jim Day. Marathon’s stated reason for 
the termination  was that the rig  had  not been accepted by  Marathon by the contractual  deadline of  December 31, 
2010.  We  believe  the  rig  was  ready  to  commence  operations  and  should  have  been  accepted  by  Marathon.  We 
intend to pursue our rights under the contract against Marathon. In February 2011, we were awarded a letter of intent 
for this drilling unit by a subsidiary of Shell for work in the U.S. Gulf of Mexico. 

In  January  2011,  we  announced  the  signing  of  a  Memorandum  of  Understanding  (“MOU”)  with  Petrobras 
regarding  operations  in  Brazil.  Under  the  terms  of  the  MOU,  we  would  substitute  the  dynamically  positioned 
deepwater drillship Noble Phoenix, then under contract with Shell in Southeast Asia, for the dynamically positioned 
drillship  Noble  Muravlenko.  In  January  2011,  Shell  agreed  to  release  the  Noble  Phoenix  from  its  contract.  Upon 
release by Shell, the Noble Phoenix will undergo limited contract preparations, after which the unit would mobilize 
to Brazil. We expect that acceptance of the Noble Phoenix in Brazil by Petrobras will take place in the fourth quarter 
of 2011. In connection with the cancelation of the contract on the Noble Phoenix, we recognized a non-cash gain of 
approximately $55 million in the first quarter of 2011. 

Also in January 2011, we reached a decision that we will not proceed with the previously announced reliability 
upgrade  to  the  Noble  Muravlenko  that  was  scheduled  to  take  place  in  2013.  As  a  result  of  the  cancelation  of  the 
upgrade,  we  expect  that  our  first  quarter  2011  results  will  include  an  associated  non-cash  impairment  charge 
currently estimated to be approximately $40 million. 

In  January  2011,  we  signed  a  contract  for  the  construction  of  two  additional  newbuild  drillships  at  Hyundai 
Heavy Industry (“HHI”), increasing the number of floating drilling units in our fleet to 26. The delivered cost of the 
new  ultra-deepwater  drillships,  to  be  named  at  a  later  date,  is  expected  to  be  $605  million  each,  including  the 
turnkey  construction  contract,  Noble-furnished  equipment,  project  management  and  spares,  but  excluding 
capitalized  interest.  The  expected  deliveries  from  the  shipyard  are  the  second  and  fourth  quarters  of  2013, 
respectively, after which time the units would be mobilized to their potential drilling locations and undergo customer 
acceptance  testing.  We  have  a  letter  of  intent  for  one  of  these  units  for  a  five  and  one-half  year  contract  with  a 
subsidiary  of  Royal  Dutch  Shell  plc  (“Shell”)  at  a  dayrate  of  $410,000,  plus  a  15  percent  performance  bonus 
opportunity. We have also negotiated options for two additional jackups and two additional HHI drillships. 

In February 2011, we entered into an additional revolving credit facility with an initial capacity of $300 million. 
The  facility  matures  in  2015  and  provides  us  with  the  ability  to  issue  up  to  $150  million  in  letters  of  credit.  The 
covenants and events of default under the additional revolving credit facility are substantially similar to the Credit 
Facility, which remains in place. The new facility is guaranteed by NHIL and NDC. 

In February 2011, NHIL completed a debt offering of $1.1 billion aggregate principal amount of senior notes in 
three separate tranches, with $300 million of 3.05% Senior Notes due 2016, $400 million of 4.625% Senior Notes 
due 2021, and $400 million of 6.05% Senior Notes due 2041. The weighted average coupon of all three tranches is 
4.71%.  A  portion  of  the  net  proceeds  of  approximately  $1.09  billion  after  expenses  was  used  to  repay  the 
outstanding balance on our revolving credit facility and to repay our portion of outstanding debt under the Bully 1 
and Bully 2 credit facilities. 

In  February  2011,  the  outstanding  balances  of  the  Bully  1  and  Bully  2  credit  facilities,  which  totaled  $691 
million,  were  repaid  in  full  and  the  credit  facilities  terminated  using  a  portion  of  the  proceeds  from  our  February 
2011 debt offering and equity contributions from our joint venture partner. In addition, the related interest rate swaps 
were settled and terminated concurrent with the repayment and termination of the credit facilities. 

108 

 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) AND SUBSIDIARIES 
NOBLE CORPORATION (NOBLE-CAYMAN) AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(Unless otherwise indicated, dollar amounts in tables are in thousands, except per share data) 

Note 20 — Unaudited Interim Financial Data  

Unaudited  interim  consolidated  financial  information  for  the  years  ended  December  31,  2010  and  2009  is  as 

follows: 

2010 
Operating revenues .........................................................................  
Operating income ...........................................................................  
Net Income attributable to Noble Corporation ...............................  

Quarter Ended 
  Mar. 31      Jun. 30      Sep. 30      Dec. 31   

 $  840,851   $  709,922   $  612,618   $  643,785 
  422,961    268,547    108,357    116,215 
98,758 
  370,726    217,925   

86,020   

Net income per share attributable to Noble Corporation (1) 

Basic ...........................................................................................  
Diluted ........................................................................................  

1.44   
1.43   

0.85   
0.85   

0.34   
0.34   

0.39 
0.39 

2009 
Operating revenues .........................................................................  
Operating income ...........................................................................  
Net Income .....................................................................................  
Net income per share (1) 

Basic ...........................................................................................  
Diluted ........................................................................................  

____________ 

Quarter Ended 
  Mar. 31      Jun. 30      Sep. 30      Dec. 31   

 $  896,151   $  898,872   $  905,635   $  940,126 
  514,101    485,812    504,413    506,418 
  414,295    391,849    426,083    446,415 

1.58   
1.58   

1.50   
1.49   

1.63   
1.63   

1.72 
1.72 

(1)  Net income per share is computed independently for each of the quarters presented. Therefore, the sum of the 

quarters’ net income per share may not equal the total computed for the year. 

109 

 
 
 
 
 
  
 
 
  
 
   
   
   
 
 
 
 
 
 
 
   
   
   
 
 
 
 
  
 
 
  
 
   
   
   
 
 
   
   
   
 
 
 
 
 
Item 9.  Changes in and Disagreements With Accountants on Accounting and Financial Disclosure 

None.  

Item 9A.  Controls and Procedures.  

Evaluation of Disclosure Controls and Procedures 

David W. Williams, Chairman, President and Chief Executive Officer of Noble Corporation, a Swiss corporation 
(“Noble-Swiss”), and Thomas L. Mitchell, Senior Vice President, Chief Financial Officer, Treasurer and Controller 
of Noble-Swiss  have evaluated the disclosure controls and procedures of Noble-Swiss as of the end of the period 
covered by this report. On the basis of this evaluation, Mr. Williams and Mr. Mitchell have concluded that Noble-
Swiss’ disclosure controls and procedures were effective as of December 31, 2010. Noble-Swiss’ disclosure controls 
and procedures are designed to ensure that information required to be disclosed by Noble-Swiss in the reports that it 
files with or submits to the SEC are recorded, processed, summarized and reported within the time periods specified 
in the SEC’s rules and forms and is accumulated and communicated to management as appropriate to allow timely 
decisions regarding required disclosure. 

David W. Williams, President and Chief Executive Officer of Noble Corporation, a Cayman Islands company 
(“Noble-Cayman”)  and  Dennis  J.  Lubojacky,  Vice  President  and  Chief  Financial  Officer  of  Noble-Cayman  have 
evaluated the disclosure controls and procedures of Noble-Cayman as of the end of the period covered by this report. 
On the basis of this evaluation, Mr. Williams and Mr. Lubojacky have concluded that Noble-Cayman’s disclosure 
controls  and  procedures  were  effective  as  of  December  31,  2010.  Noble-Cayman’s  disclosure  controls  and 
procedures are designed to ensure that information required to be disclosed by Noble-Cayman in the reports that it 
files with or submits to the SEC are recorded, processed, summarized and reported within the time periods specified 
in the SEC’s rules and forms and is accumulated and communicated to management as appropriate to allow timely 
decisions regarding required disclosure. 

Changes in Internal Control over Financial Reporting 

There  was  no  change  in  either  Noble-Swiss’  or  Noble-Cayman’s  internal  control  over  financial  reporting  that 
occurred  during  the  quarter  ended  December  31,  2010  that  has  materially  affected,  or  is  reasonably  likely  to 
materially affect, the internal control over financial reporting of each of Noble-Swiss or Noble-Cayman. 

Management’s Annual Report on Internal Control Over Financial Reporting  

The  management  of  Noble-Swiss  and  Noble-Cayman  is  responsible  for  establishing  and  maintaining  adequate 
internal  control  over  financial  reporting,  as  such  term  is  defined  in  Rule  13a-15(f)  promulgated  under  the  U.S. 
Securities Exchange Act of 1934, as amended. 

Internal control over financial reporting includes the controls themselves, monitoring (including internal auditing 
practices), and actions taken to correct deficiencies as identified. There are inherent limitations to the effectiveness 
of internal control over financial reporting, however well designed, including the possibility of human error and the 
possible circumvention or overriding of controls. The design of an internal control system is also based in part upon 
assumptions  and  judgments  made  by  management  about  the  likelihood  of  future  events,  and  there  can  be  no 
assurance that an internal control will be effective under all potential future conditions. As a result, even an effective 
system of internal controls can provide no more than reasonable assurance  with respect to the fair presentation of 
financial statements and the processes under which they were prepared. 

Under the supervision and with the participation of our management, including our Chief Executive Officer and 
Chief  Financial  Officer,  we  conducted  an  evaluation  of  the  effectiveness  of  our  internal  control  over  financial 
reporting  based  on  the  framework  in  Internal  Control  —  Integrated  Framework  issued  by  the  Committee  of 
Sponsoring  Organizations  of  the  Treadway  Commission.  Based  on  the  management  of  Noble-Swiss  and  Noble-
Cayman  assessment,  both  Noble-Swiss  and  Noble-Cayman  maintained  effective  internal  control  over  financial 
reporting as of December 31, 2010. 

PricewaterhouseCoopers  LLP,  the  independent  registered  public  accounting  firm  that  audited  our  financial 
statements  included  in  this  Annual  Report  on  Form  10-K,  has  audited  the  effectiveness  of  internal  control  over 
financial reporting as of  December 31, 2010 as stated in their report,  which is provided in this  Annual  Report on 
Form 10-K. 

Item 9B.  Other Information.  

None.  

110 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 10.  Directors, Executive Officers and Corporate Governance.  

PART III 

The  sections  entitled  “Election  of  Directors”,  “Additional  Information  Regarding  the  Board  of  Directors”, 
“Section 16(a) Beneficial Ownership Reporting Compliance”, and “Other Matters” appearing in the proxy statement 
for the 2011 annual general meeting of shareholders (the “2011 Proxy Statement”), will set forth certain information 
with respect to directors, certain corporate governance matters and reporting under Section 16(a) of the Securities 
Exchange Act of 1934, and are incorporated in this report by reference. 

Executive Officers of the Registrant 

The following table sets forth certain information as of February 15, 2011 with respect to our executive officers: 

Name 

 Age  

Position 

David W. Williams 

  53 

Chairman, President and Chief Executive Officer 

Julie J. Robertson 

  54 

Executive Vice President and Corporate Secretary 

Thomas L. Mitchell 

  50 

Senior Vice President, Chief Financial Officer, Treasurer and Controller 

Donald E. Jacobsen 

  52 

Senior Vice President — Operations 

Roger B. Hunt 

  61 

Senior Vice President — Marketing and Contracts 

Scott W. Marks 

  51 

Senior Vice President — Engineering 

William E. Turcotte 

  47 

Senior Vice President and General Counsel 

David W. Williams was named Chairman, President and Chief Executive Officer effective January 2, 2008. Mr. 
Williams served as Senior Vice President — Business Development of Noble Drilling Services Inc. from September 
2006 to January 2007, as Senior Vice President — Operations of Noble Drilling Services Inc. from January to April 
2007, and as Senior Vice President and Chief Operating Officer of Noble from April 2007 to January 2, 2008. Prior 
to September 2006, Mr. Williams served for more than five years as Executive Vice President of Diamond Offshore 
Drilling, Inc., an offshore oil and gas drilling contractor. 

Julie J. Robertson  was named Executive Vice President effective February 10, 2006. Ms. Robertson served as 
Senior  Vice  President  —  Administration  from  July  2001  to  February  10,  2006.  Ms.  Robertson  has  served 
continuously  as  Corporate  Secretary  since  December  1993.  Ms.  Robertson  served  as  Vice  President  — 
Administration  of  Noble  Drilling  from  1996  to  July  2001.  In  1994,  Ms.  Robertson  became  Vice  President  — 
Administration of Noble Drilling Services Inc. From 1989 to 1994, Ms. Robertson served consecutively as Manager 
of Benefits and Director of Human Resources for Noble Drilling Services Inc. Prior to 1989, Ms. Robertson served 
consecutively in the positions of Risk and Benefits Manager and Marketing Services Coordinator for a predecessor 
subsidiary of Noble, beginning in 1979. 

Thomas  L.  Mitchell  was  named  Senior  Vice  President,  Chief  Financial  Officer,  Treasurer  and  Controller 
effective November 6, 2006. Prior to joining Noble, Mr. Mitchell served as Vice President and Controller of Apache 
Corporation,  an  oil  and  gas  exploration  and  production  company,  since  1997.  From  1996  to  1997,  he  served  as 
Controller  of  Apache,  and  from  1989  to  1996  he  served  Apache  in  various  positions  including  Assistant  to  Vice 
President Production and Director Natural Gas Marketing. Prior to joining Apache, Mr. Mitchell spent seven years 
with Arthur Andersen & Co. where he practiced as a Certified Public Accountant, managing clients in the oil and 
gas, banking, manufacturing and government contracting industries. 

111 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Donald  E.  Jacobsen  was  named  Senior  Vice  President  —  Operations  effective  July  30,  2009. Prior  to joining 
Noble, Mr. Jacobsen served as Vice President — Drilling and Completions of Hess Corporation, a global integrated 
energy  company  engaged  in  exploration  and  production  activities  worldwide,  from  July  2008  to  July  2009.  He 
served  as  Vice  President  —  Health,  Safety,  Security,  Environment  and  Sustainable  Development  of  Shell 
International Exploration & Production from September 2006 to July 2008 and as Vice President — Global Wells of 
Shell International Exploration & Production from April 2003 to September 2006. Shell International Exploration & 
Production  is  the  upstream  division  of  Royal  Dutch  Shell  plc,  a  global  group  of  energy  and  petrochemicals 
companies involved in oil and gas exploration and production activities worldwide. 

Roger B. Hunt was named Senior Vice President — Marketing and Contracts effective July 20, 2009. Prior to 
joining Noble, Mr. Hunt served as Senior Vice President — Marketing at GlobalSantaFe Corporation, an offshore 
oil  and  gas  drilling  contractor,  from  1997  to  2007.  In  that  capacity,  Mr.  Hunt  was  responsible  for  marketing  and 
pricing strategy, sales and contract activities for the company’s fleet of 57 offshore drilling units. Mr. Hunt did not 
hold a principal employment from December 2007 to July 2009. 

Scott W. Marks was named Senior Vice President — Engineering effective January 2007. Mr. Marks served as 
Vice President — Project Management and Construction from August 2006 to January 2007, as Vice President — 
Support  Engineering  from  September  2005  to  August  2006  and  as  Director of  Engineering  from  January  2003  to 
September  2005.  Mr.  Marks  has  been  with  Noble  since  1991,  serving  as  a  Project  Manager  and  as  a  Drilling 
Superintendent prior to 2003. 

William E. Turcotte was named Senior Vice President and General Counsel effective December 16, 2008. Prior 
to joining Noble, Mr. Turcotte served as Senior Vice President, General Counsel and Corporate Secretary of Cornell 
Companies, Inc., a private corrections company, since March 2007. He served as Vice President, Associate General 
Counsel and Assistant Secretary of Transocean, Inc., an offshore oil and gas drilling contractor, from October 2005 
to March 2007 and as Associate General Counsel and Assistant Secretary from January 2000 to October 2005. From 
1992 to 2000, Mr. Turcotte served in various legal positions  with Schlumberger Limited in Houston, Caracas and 
Paris. Mr. Turcotte was in private practice prior to joining Schlumberger. 

We  have  adopted  a  Code  of  Business  Conduct  and  Ethics  that  applies  to  directors,  officers  and  employees, 
including our principal executive officer, principal  financial officer and principal accounting officer. Our  Code of 
Business  Conduct  and  Ethics  is  posted  on  our  website  at  http://www.noblecorp.com  in  the  “Governance”  area. 
Changes  to  and  waivers  granted  with  respect  to  our  Code  of  Business  Conduct  and  Ethics  related  to  the  officers 
identified  above,  and  our  other  executive  officers  and  directors,  that  we  are  required  to  disclose  pursuant  to 
applicable rules and regulations of the SEC will also be posted on our website. 

Item 11.  Executive Compensation.  

The sections entitled “Executive Compensation” and “Compensation Committee Report” appearing in the 2011 
Proxy  Statement  set  forth  certain  information  with  respect  to  the  compensation  of  our  management  and  our 
compensation committee report, and are incorporated in this report by reference. 

Item 12.  Security  Ownership  of  Certain  Beneficial  Owners  and  Management  and  Related  Stockholder 

Matters. 

The  sections  entitled  “Equity  Compensation  Plan  Information”,  “Security  Ownership  of  Certain  Beneficial 
Owners”  and  “Security  Ownership  of  Management”  appearing  in  the  2011  Proxy  Statement  set  forth  certain 
information with respect to securities authorized for issuance under equity compensation plans and the ownership of 
our voting securities and equity securities, and are incorporated in this report by reference. 

Item 13.  Certain Relationships and Related Transactions and Director Independence. 

The  sections  entitled  “Additional  Information  Regarding  the  Board  of  Directors  —  Board  Independence”  and 
“Policies and Procedures Relating to Transactions with Related Persons” appearing in the 2011 Proxy Statement set 
forth  certain  information  with  respect  to  director  independence  and  transactions  with  related  persons,  and  are 
incorporated in this report by reference. 

112 

 
 
 
 
 
 
 
 
 
 
 
 
 
Item 14.  Principal Accounting Fees and Services.  

The section entitled “Auditors” appearing in the 2011 Proxy Statement sets forth certain information with respect 

to accounting fees and services, and is incorporated in this report by reference. 

ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES.  

(a)  The following documents are filed as part of this report:  

PART IV 

(1)  A  list  of  the  financial  statements  filed  as  a  part  of  this  report  is  set  forth  in  Item  8  on  page  [52]  and  is 

incorporated herein by reference. 

(2)  Financial Statement Schedules:  

All  schedules  are  omitted  because  they  are  either  not  applicable  or  required  information  is  shown  in  the 
financial statements or notes thereto. 

(3)  Exhibits:  

The  information  required  by  this  Item  15(a)(3)  is  set  forth  in  the  Index  to  Exhibits  accompanying  this 
Annual Report on Form 10-K and is incorporated herein by reference. 

113 

 
 
 
 
 
 
 
 
 
 
 
 
 
SIGNATURES 

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has 

duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. 

NOBLE CORPORATION, a Swiss Corporation  

Date: February 25, 2011 

By:  /s/ DAVID W. WILLIAMS  

David W. Williams,  
Chairman, President and Chief Executive Officer 

Pursuant  to  the  requirements  of  the  Securities  Exchange  Act  of  1934,  this  report  has  been  signed  by  the 

following persons on behalf of the Registrant and in the capacities and on the dates indicated. 

Signature 

Capacity In Which Signed 

Date 

/s/ DAVID W. WILLIAMS 
David W. Williams 

Chairman, President and Chief Executive Officer 
(Principal Executive Officer) 

February 25, 2011 

/s/ THOMAS L. MITCHELL 
Thomas L. Mitchell 

/s/ MICHAEL A. CAWLEY 
Michael A. Cawley 

/s/ LAWRENCE J. CHAZEN 
Lawrence J. Chazen 

/s/ JULIE H. EDWARDS 
Julie H. Edwards 

/s/ GORDON T. HALL 
Gordon T. Hall 

/s/ MARC E. LELAND 
Marc E. Leland 

/s/ JACK E. LITTLE 
Jack E. Little 

/s/ JON A. MARSHALL 
Jon A. Marshall 

/s/ MARY P. RICCIARDELLO 
Mary P. Ricciardello 

Senior Vice President, Chief Financial Officer, 
Treasurer and Controller  
(Principal Financial and Accounting Officer) 

February 25, 2011 

February 25, 2011 

February 25, 2011 

February 25, 2011 

February 25, 2011 

February 25, 2011 

February 25, 2011 

February 25, 2011 

February 25, 2011 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

114 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SIGNATURES 

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has 

duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. 

NOBLE CORPORATION, a Cayman Islands company  

Date: February 25, 2011 

By: /s/ DAVID W. WILLIAMS  

David W. Williams, 
President, Chief Executive Officer and Director 

Pursuant  to  the  requirements  of  the  Securities  Exchange  Act  of  1934,  this  report  has  been  signed  by  the 

following persons on behalf of the Registrant and in the capacities and on the dates indicated. 

Signature 

Capacity In Which Signed 

Date 

/s/ DAVID W. WILLIAMS  
David W. Williams 

President, Chief Executive Officer and Director  
(Principal Executive Officer) 

February 25, 2011 

/s/ DENNIS J. LUBOJACKY  
Dennis J. Lubojacky 

Vice President and Chief Financial Officer and Director  
(Principal Financial and Accounting Officer) 

February 25, 2011 

/s/ ALAN P. DUNCAN  
Alan P. Duncan 

/s/ ANDREW J. STRONG  
Andrew J. Strong 

/s/ ALAN R. HAY  
Alan R. Hay 

Director 

Director 

Director 

February 25, 2011 

February 25, 2011 

February 25, 2011 

115 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
  Number 

Exhibit 

INDEX TO EXHIBITS 

2.1 

2.2 

3.1 

3.2 

3.3 

4.1 

4.2 

4.3 

4.4 

4.5 

4.6 

Agreement and Plan of Merger, Reorganization and Consolidation, dated as of December 19, 
2008, among Noble Corporation, a Swiss corporation (“Noble-Swiss”), Noble Corporation, a 
Cayman Islands company (“Noble-Cayman”), and Noble Cayman Acquisition Ltd. (filed as 
Exhibit 1.1 to Noble-Cayman’s Current Report on Form 8-K filed on December 22, 2008 and 
incorporated herein by reference). 

Amendment No. 1 to Agreement and Plan of Merger, Reorganization and Consolidation, dated as 
of February 4, 2009, among Noble-Swiss, Noble-Cayman and Noble Cayman Acquisition Ltd. 
(filed as Exhibit 2.2 to Noble-Cayman’s Current Report on Form 8-K filed on February 4, 2009 
and incorporated herein by reference). 

Articles of Association of Noble-Swiss. 

By-laws of Noble-Swiss (filed as Exhibit 3.2 to Noble-Swiss’ Current Report on Form 8-K filed 
on March 27, 2009 and incorporated herein by reference). 

Memorandum and Articles of Association of Noble-Cayman (filed as Exhibit 3.1 to Noble-
Cayman’s Current Report on Form 8-K filed on March 30, 2009 and incorporated herein by 
reference). 

Indenture dated as of March 1, 1999, between Noble Drilling Corporation and JP Morgan Chase 
Bank, National Association (formerly Chase Bank of Texas, National Association), as trustee 
(filed as Exhibit 4.1 to the Form 8-K of Noble Drilling Corporation filed on March 23, 1999 and 
incorporated herein by reference). 

Supplemental Indenture dated as of March 16, 1999, between Noble Drilling Corporation and JP 
Morgan Chase Bank, National Association (formerly Chase Bank of Texas, National Association), 
as trustee, relating to 7.50% senior notes due 2019 of Noble Drilling Corporation (filed as Exhibit 
4.2 to Noble Drilling Corporation’s Form 8-K filed on March 23, 1999 and incorporated herein by 
reference). 

Second Supplemental Indenture, dated as of April 30, 2002, between Noble Drilling Corporation, 
Noble Holding (U.S.) Corporation and Noble Corporation, and JP Morgan Chase Bank, National 
Association, as trustee, relating to 7.50% senior notes due 2019 of Noble Drilling Corporation 
(filed as Exhibit 4.6 to the Noble-Cayman Quarterly Report on Form 10-Q for the three-month 
period ended March 31, 2002 and incorporated herein by reference). 

Third Supplemental Indenture, dated as of December 20, 2005, between Noble Drilling 
Corporation, Noble Drilling Holding LLC, Noble Holding (U.S.) Corporation and Noble 
Corporation and JP Morgan Chase Bank, National Association, as trustee, relating to 7.50% senior 
notes due 2019 of Noble Drilling Corporation (filed as Exhibit 4.14 to Noble-Cayman’s 
Registration Statement on Form S-3 (No. 333-131885) and incorporated herein by reference). 

Fourth Supplemental Indenture, dated as of September 25, 2009, among Noble Drilling 
Corporation, as Issuer, Noble Drilling Holding LLC, as Co-Issuer, Noble Drilling Services 1 LLC, 
as Co-Issuer, Noble Holding (U.S.) Corporation, as Guarantor, Noble-Cayman, as Guarantor, and 
The Bank of New York Mellon Trust Company, N.A., as Trustee (relating to Noble Drilling 
Corporation 7.50% Senior Notes due 2019) (filed as Exhibit 4.1 to Noble-Swiss’s Form 8-K filed 
on October 1, 2009 and incorporated herein by reference). 

Fifth Supplemental Indenture, dated as of October 1, 2009, among Noble Drilling Corporation, as 
Issuer, Noble Drilling Holding LLC, as Co-Issuer, Noble Drilling Services 6 LLC, as Co-Issuer, 
Noble Holding (U.S.) Corporation, as Guarantor, Noble-Cayman, as Guarantor, and The Bank of 
New York Mellon Trust Company, N.A., as Trustee (relating to Noble Drilling Corporation 
7.50% Senior Notes due 2019) (filed as Exhibit 4.2 to Noble-Swiss’s Form 8-K filed on October 
1, 2009 and incorporated herein by reference). 

116 

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
  Number 

Exhibit 

4.7 

4.8 

4.9 

4.10 

4.11 

4.12 

4.13 

4.14 

4.15 

Indenture, dated as of May 26, 2006, between Noble Corporation, as Issuer, and JPMorgan Chase 
Bank, National Association, as trustee (filed as Exhibit 4.1 to Noble-Cayman’s Current Report on 
Form 8-K filed on May 26, 2006 and incorporated herein by reference). 

First Supplemental Indenture, dated as of May 26, 2006, between Noble Corporation, as Issuer, 
Noble Drilling Corporation, as Guarantor, and JP Morgan Chase Bank, National Association, as 
trustee, relating to 5.875% senior notes due 2013 of Noble Corporation (filed as Exhibit 4.2 to the 
Noble-Cayman’s Current Report on Form 8-K filed on May 26, 2006 and incorporated herein by 
reference). 

Second Supplemental Indenture, dated as of October 1, 2009, among Noble-Cayman, as Issuer, 
Noble Drilling Corporation, as Guarantor, Noble Holding International Limited, as Guarantor, and 
The Bank of New York Mellon Trust Company, N.A., as Trustee (relating to Noble-Cayman’s 
5.875% Senior Notes due 2013) (filed as Exhibit 4.3 to Noble-Swiss’s Form 8-K filed on October 
1, 2009 and incorporated herein by reference). 

Revolving Credit Agreement, dated as of March 15, 2007, among Noble Corporation; the Lenders 
from time to time parties thereto; Citibank, N.A., as Administrative Agent, Swingline Lender and 
an Issuing Bank; SunTrust Bank, as Syndication Agent; The Bank of Tokyo-Mitsubishi UFJ, Ltd., 
Houston Agency, Fortis Capital Corp., and Wells Fargo Bank, N.A., as Co-Documentation 
Agents; and Citigroup Global Markets Inc., and SunTrust Robinson Humphrey, a division of 
SunTrust Capital Markets, Inc., as Co-Lead Arrangers and Co-Book Running Managers (filed as 
Exhibit 4.1 to Noble-Cayman Current Report on Form 8-K filed on March 20, 2007 and 
incorporated herein by reference). 

Subsidiary Guaranty Agreement, dated as of October 1, 2009, among Noble Holding International 
Limited, Noble-Cayman and Citibank, N.A., as Administrative Agent (relating to Noble-Cayman 
revolving credit agreement) (filed as Exhibit 4.4 to Noble-Swiss’s Form 8-K filed on October 1, 
2009 and incorporated herein by reference). 

Revolving Credit Agreement dated as of February 11, 2011 among Noble Corporation, a Cayman 
Islands company; the Lenders from time to time parties thereto; Wells Fargo Bank, National 
Association, as Administrative Agent, Swingline Lender and an Issuing Bank; Barclays Capital, a 
division of Barclays Bank PLC, and HSBC Securities (USA) Inc., as Co-Syndication Agents; and 
Wells Fargo Securities, LLC, Barclays Capital, a division of Barclays Bank PLC, and HSBC 
Securities (USA) Inc., as Joint Lead Arrangers and Joint Lead Bookrunners (filed as Exhibit 4.1 to 
Noble-Cayman’s Current Report on Form 8-K filed on February 17, 2011 and incorporated by 
reference herein). 

Indenture, dated as of November 21, 2008, between Noble Holding International Limited, as 
Issuer, and The Bank of New York Mellon Trust Company, N.A., as Trustee (filed as Exhibit 4.1 
to Noble-Cayman’s Current Report on Form 8-K filed on November 21, 2008 and incorporated 
herein by reference). 

First Supplemental Indenture, dated as of November 21, 2008, among Noble Holding International 
Limited, as Issuer, Noble Corporation, as Guarantor, and The Bank of New York Mellon Trust 
Company, N.A., as Trustee, relating to 7.375% senior notes due 2014 of Noble Holding 
International Limited (filed as Exhibit 4.2 to Noble-Cayman’s Current Report on Form 8-K filed on 
November 21, 2008 and incorporated herein by reference). 

Second Supplemental Indenture, dated as of July 26, 2010, among Noble Holding International 
Limited, as Issuer, Noble Corporation, as Guarantor, and The Bank of New York Mellon Trust 
Company, N.A., as Trustee, relating to 3.45% senior notes due 2015 of Noble Holding 
International Limited, 4.90% senior notes due 2020 of Noble Holding International Limited, and 
6.20% senior notes due 2040 of Noble Holding International Limited (filed as Exhibit 4.2 to 
Noble-Cayman’s Current Report on Form 8-K filed on July 26, 2010 and incorporated herein by 
reference). 

117 

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
  Number 

4.16 

10.1* 

10.2* 

10.3* 

10.4* 

10.5* 

10.6* 

10.7* 

10.8* 

10.9* 

10.10* 

10.11* 

10.12* 

10.13* 

Exhibit 

Third Supplemental Indenture, dated as of February 3, 2011, among Noble Holding International 
Limited, as Issuer, Noble Corporation, as Guarantor, and The Bank of New York Mellon Trust 
Company, N.A., as Trustee, relating to 3.05% senior notes due 2016 of Noble Holding 
International Limited, 4.625% senior notes due 2021 of Noble Holding International Limited, and 
6.05% senior notes due 2041 of Noble Holding International Limited (filed as Exhibit 4.2 to 
Noble-Cayman’s Current Report on Form 8-K filed on July 26, 2010 and incorporated herein by 
reference). 

Noble Drilling Corporation Equity Compensation Plan for Non-Employee Directors (filed as 
Exhibit 4.1 to Noble Drilling Corporation’s Registration Statement on Form S-8 (No. 333-17407) 
dated December 6, 1996 and incorporated herein by reference). 

Amendment, effective as of May 1, 2002, to the Noble Drilling Corporation Equity Compensation 
Plan for Non-Employee Directors (filed as Exhibit 10.1 to Post-Effective Amendment No. 1 to 
Noble-Cayman’s Registration Statement on Form S-8 (No. 333-17407) and incorporated herein by 
reference). 

Amendment No. 2 to the Noble Corporation Equity Compensation Plan for Non-Employee 
Directors dated February 4, 2005 (filed as Exhibit 10.20 to Noble-Cayman’s Annual Report on 
Form 10-K for the year ended December 31, 2004 and incorporated herein by reference). 

Amendment to the Noble Corporation Equity Compensation Plan for Non-Employee Directors dated 
December 31, 2008 (filed as Exhibit 10.29 to Noble-Cayman’s Annual Report on Form 10-K for the 
year ended December 31, 2008 and incorporated herein by reference). 

Amended and Restated Noble Corporation Equity Compensation Plan for Non-Employee 
Directors effective March 27, 2009 

Noble Drilling Corporation 401(k) Savings Restoration Plan (filed as Exhibit 10.1 to Noble Drilling 
Corporation’s Registration Statement on Form S-8 dated January 18, 2001 (No. 333-53912) and 
incorporated herein by reference). 

Amendment No. 1 to the Noble Drilling Corporation 401(k) Savings Restoration Plan (filed as 
Exhibit 10.1 to Post-Effective Amendment No. 1 to Noble-Cayman’s Registration Statement on 
Form S-8 (No. 333-53912) and incorporated herein by reference). 

Amendment No. 2 to the Noble Drilling Corporation 401(k) Savings Restoration Plan dated 
February 25, 2003 (filed as Exhibit 10.30 to Noble-Cayman Annual Report on Form 10-K for the 
year ended December 31, 2005 and incorporated herein by reference). 

Amendment No. 3 to the Noble Drilling Corporation 401(k) Savings Restoration Plan dated 
March 9, 2005 (filed as Exhibit 10.31 to Noble-Cayman Annual Report on Form 10-K for the year 
ended December 31, 2005 and incorporated herein by reference). 

Amendment No. 4 to the Noble Drilling Corporation 401(k) Savings Restoration Plan dated 
March 30, 2007 (filed as Exhibit 10.41 to Noble-Cayman Annual Report on Form 10-K for the 
year ended December 31, 2007 and incorporated herein by reference). 

Amendment No. 5 to the Noble Drilling Corporation 401(k) Savings Restoration Plan effective 
May 1, 2010. 

Noble Drilling Corporation Retirement Restoration Plan dated April 27, 1995 (filed as Exhibit 
10.2 to Noble Drilling Corporation’s Quarterly Report on Form 10-Q for the three-month period 
ended March 31, 1995 and incorporated herein by reference). 

Amendment No. 1 to the Noble Drilling Corporation Retirement Restoration Plan dated January 
29, 1998 (filed as Exhibit 10.18 to Noble Drilling Corporation’s Annual Report on Form 10-K for 
the year ended December 31, 1997 and incorporated herein by reference). 

118 

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
  Number 

10.14* 

10.15* 

10.16* 

10.17* 

10.18* 

10.19* 

10.20* 

10.21* 

10.22* 

Exhibit 

Amendment No. 2 to the Noble Drilling Corporation Retirement Restoration Plan dated June 28, 
2004, effective as of July 1, 2004 (filed as Exhibit 10.32 to Noble-Cayman Annual Report on 
Form 10-K for the year ended December 31, 2005 and incorporated herein by reference). 

Noble Drilling Corporation Retirement Restoration Plan dated December 29, 2008, effective 
January 1, 2009 (filed as Exhibit 10.32 to Noble-Cayman’s Annual Report on Form 10-K for the 
year ended December 31, 2008 and incorporated herein by reference). 

Amendment No. 1 to Noble Drilling Corporation Retirement Restoration Plan dated July 10, 
2009. 

Amended and Restated Noble Corporation 1992 Nonqualified Stock Option and Restricted Share 
Plan for Non-Employee Directors dated February 4, 2005 (filed as Exhibit 10.21 to Noble-
Cayman Annual Report on Form 10-K for the year ended December 31, 2004 and incorporated 
herein by reference). 

Second Amended and Restated Noble Corporation 1992 Nonqualified Stock Option and Share 
Plan for Non-Employee Directors (filed as Exhibit 10.2 to Noble-Cayman Quarterly Report on 
Form 10-Q for the three-month period ended September 25, 2007 and incorporated herein by 
reference). 

Amendment to the Second Amended and Restated Noble Corporation 1992 Nonqualified Stock 
Option and Share Plan for Non-Employee Directors dated December 31, 2008 (filed as Exhibit 
10.28 to Noble-Cayman’s Annual Report on Form 10-K for the year ended December 31, 2008 
and incorporated herein by reference). 

Third Amended and Restated Noble Corporation 1992 Nonqualified Stock Option and Share Plan 
for Non-Employee Directors effective March 27, 2009 

Composite copy of the Noble Corporation 1991 Stock Option and Restricted Stock Plan dated as 
of February 6, 2010 (filed as Exhibit 10.18 to Noble-Cayman Annual Report on Form 10-K for 
the year ended December 31, 2009 and incorporated herein by reference). 

Noble Drilling Corporation 2009 401(k) Savings Restoration Plan effective January 1, 2009 (filed 
as Exhibit 10.31 to Noble-Cayman’s Annual Report on Form 10-K for the year ended December 
31, 2008 and incorporated herein by reference). 

10.23* 

Amendment No. 1 to the Noble Drilling Corporation 2009 401(k) Savings Restoration Plan dated 
effective May 1, 2010. 

10.24* 

Noble Corporation Summary of Directors’ Compensation 

10.25* 

10.26* 

10.27* 

Form of Noble Corporation Performance-Vested Restricted Stock Agreement under the Noble 
Corporation 1991 Stock Option and Restricted Stock Plan (filed as Exhibit 10.34 to Noble-
Cayman’s Annual Report on Form 10-K for the year ended December 31, 2008 and incorporated 
herein by reference). 

Form of Noble Corporation Time-Vested Restricted Stock Agreement under the Noble 
Corporation 1991 Stock Option and Restricted Stock Plan (filed as Exhibit 10.35 to Noble-
Cayman’s Annual Report on Form 10-K for the year ended December 31, 2008 and incorporated 
herein by reference). 

Form of Noble Corporation Nonqualified Stock Option Agreement under the Noble Corporation 
1991 Stock Option and Restricted Stock Plan (filed as Exhibit 10.36 to Noble-Cayman’s Annual 
Report on Form 10-K for the year ended December 31, 2008 and incorporated herein by 
reference). 

119 

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
  Number 

10.28* 

Exhibit 

Form of Noble Corporation Restricted Stock Agreement under the Amended and Restated Noble 
Corporation 1992 Nonqualified Stock Option and Share Plan for Non-Employee Directors (filed 
as Exhibit 10.37 to Noble-Cayman’s Annual Report on Form 10-K for the year ended December 
31, 2008 and incorporated herein by reference). 

10.29* 

10.30* 

10.31* 

Form of Noble Corporation Performance-Vested Restricted Stock Unit Agreement under the 
Noble Corporation 1991 Stock Option and Restricted Stock Plan (filed as Exhibit 10.1 to Noble-
Cayman’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2010 and incorporated 
herein by reference). 

Form of Noble Corporation Time-Vested Restricted Stock Unit Agreement under the Noble 
Corporation 1991 Stock Option and Restricted Stock Plan (filed as Exhibit 10.2 to Noble-
Cayman’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2010 and incorporated 
herein by reference). 

Form of Noble Corporation Nonqualified Stock Option Agreement under the Noble Corporation 
1991 Stock Option and Restricted Stock Plan (filed as Exhibit 10.3 to Noble-Cayman’s Quarterly 
Report on Form 10-Q for the quarter ended March 31, 2010 and incorporated herein by reference). 

10.32* 

Noble Corporation 2011 Short Term Incentive Plan. 

10.33* 

Form of Employment Agreement and Guaranty Agreement (filed as Exhibit 10.1 to Noble-
Swiss’s Current Report on Form 8-K filed on December 4, 2009 and incorporated herein by 
reference). 

21.1 

23.1 

23.2 

31.1 

31.2 

31.3 

32.1+ 

32.2+ 

32.3+ 

Subsidiaries of Noble-Swiss and Noble-Cayman. 

Consent of PricewaterhouseCoopers LLP. 

Consent of PricewaterhouseCoopers LLP. 

Certification of David W. Williams pursuant to SEC Rule 13a-14(a) or Rule 15d-14(a). 

Certification of Thomas L. Mitchell pursuant to SEC Rule 13a-14(a) or Rule 15d-14(a). 

Certification of Dennis J. Lubojacky pursuant to SEC Rule 13a-14(a) or Rule 15d-14(a). 

Certification of David W. Williams pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002. 

Certification of Thomas L. Mitchell pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002. 

Certification of Dennis J. Lubojacky pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to 
Section 906 of the Sarbanes-Oxley Act of 2002. 

101+ 
____________ 

Interactive data files 

*  Management contract or compensatory plan or arrangement.  

+  Furnished in accordance with Item 601(b)(32)(ii) of Regulation S-K.  

120 

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Report of the statutory auditor 
to the general meeting of 
Noble Corporation  
Baar 

PricewaterhouseCoopers AG 
Grafenauweg 8 
Postfach  
6304 Zug 
Phone +41 58 792 68 00 
Fax +41 58 792 68 10 
www.pwc.ch 

Report of the statutory auditor on the consolidated financial statements 

As statutory auditor, we have audited the consolidated financial statements of Noble Corporation, 
which comprise the consolidated balance sheet (page 54), consolidated statement of income (page 
55), consolidated statement of cash flows (page 56), consolidated statement of shareholders’ 
equity (page 57), consolidated statement of comprehensive income (page 58) and notes (pages 65 
to 109, excluding Note 18, which solely relates to Noble Corporation, Cayman) for the year ended 
December 31, 2010. 

Board of Directors’ Responsibility 
The Board of Directors is responsible for the preparation and fair presentation of the consolidated 
financial statements in accordance with accounting principles generally accepted in the United 
States of America (US GAAP) and the requirements of Swiss law. This responsibility includes 
designing, implementing and maintaining an internal control system relevant to the preparation and 
fair presentation of consolidated financial statements that are free from material misstatement, 
whether due to fraud or error. The Board of Directors is further responsible for selecting and apply-
ing appropriate accounting policies and making accounting estimates that are reasonable in the 
circumstances.  

Auditor’s Responsibility 
Our responsibility is to express an opinion on these consolidated financial statements based on our 
audit. We conducted our audit in accordance with Swiss law, Swiss Auditing Standards and audit-
ing standards generally accepted in the United States of America. Those standards require that we 
plan and perform the audit to obtain reasonable assurance whether the consolidated financial 
statements are free from material misstatement.  

An audit involves performing procedures to obtain audit evidence about the amounts and disclo-
sures in the consolidated financial statements. The procedures selected depend on the auditor’s 
judgment, including the assessment of the risks of material misstatement of the consolidated finan-
cial statements, whether due to fraud or error. In making those risk assessments, the auditor con-
siders the internal control system relevant to the entity’s preparation and fair presentation of the 
consolidated financial statements in order to design audit procedures that are appropriate in the 
circumstances, but not for the purpose of expressing an opinion on the effectiveness of the entity’s 
internal control system. An audit also includes evaluating the appropriateness of the accounting 
policies used and the reasonableness of accounting estimates made, as well as evaluating the 
overall presentation of the consolidated financial statements. We believe that the audit evidence we 
have obtained is sufficient and appropriate to provide a basis for our audit opinion. 

 
 
 
 
 
 
 
 
 
Opinion 
In our opinion, the consolidated financial statements for the year ended December 31, 2010 pre-
sent fairly in all material respects the financial position, the results of operations and the cash flows 
in accordance with accounting principles generally accepted in the United States of America (US 
GAAP) and comply with Swiss law. 

Report on other legal requirements 

We confirm that we meet the legal requirements on licensing according to the Auditor Oversight Act 
(AOA) and independence (article 728 CO and article 11 AOA) and that there are no circumstances 
incompatible with our independence. 

In accordance with article 728a paragraph 1 item 3 CO and Swiss Auditing Standard 890, we 
confirm that an internal control system exists which has been designed for the preparation of con-
solidated financial statements according to the instructions of the Board of Directors. 

We recommend that the consolidated financial statements submitted to you be approved. 

PricewaterhouseCoopers AG 

Claudia Muhlinghaus 

Joanne Burgener 
Audit expert 
Auditor in charge 

Zug, February 25, 2011 

Enclosure: 
  Consolidated financial statements (balance sheet, statement of income, statement of cash 

flows, statement of shareholders’ equity, statement of comprehensive income and notes) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
 
 
 
 
 
NOBLE CORPORATION 
SWISS STATUTORY FINANCIAL STATEMENTS 
December 31, 2010

S-1 

 
 
 
 
 
 
NOBLE CORPORATION 
SWISS STATUTORY BALANCE SHEET 
(In thousands of Swiss Francs) 

ASSETS
Current assets

Cash and cash equivalents
Treasury shares
Prepaid expenses

Total current assets

Fixed assets

Treasury shares
Investment in subsidiaries

Total fixed assets

December 31, 2010

December 31, 2009

266
384,828
1,289
386,383

943
10,676,111
10,677,054

9,208
-
121
9,329

148,925
10,676,111
10,825,036

Total assets

11,063,437

10,834,365

LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities

Accounts payable
Accrued capital taxes
Other current liabilities
Intercompany

Provision for unrealized exchange gains

Total liabilities

Shareholders' equity
Share capital
Legal reserves

Capital Contribution
 Reserve for own shares to be acquired,  
 funded from capital contribution 

Accumulated deficit
Profit / (loss) for the period

Total shareholders' equity
Total liabilities and shareholders' equity

620
103

168,623
-
169,346

1,085,724

8,694,772

600,000
(25,737)
539,332
10,894,091
11,063,437

6,622
110

218,050
659
225,441

1,339,889

8,694,772

600,000
-
(25,737)
10,608,924
10,834,365

S-2 

 
 
 
                            
                         
                     
                             
                         
                            
                     
                         
                            
                     
                
                
                
                
              
                
                            
                         
                            
                            
                     
                     
                             
                            
                     
                     
                  
                  
                  
                  
                   
                    
                      
                             
                     
                      
                
                
              
                
 
NOBLE CORPORATION 
SWISS STATUTORY STATEMENT OF INCOME 
(In thousands of Swiss Francs) 

Revenues

Dividend income
Financial income

Total revenues

Expenses 

Administrative and other expenses - recharged from group companies
Administrative and other expenses - charged from third parties
Financial expenses

Total expenses

Profit / (loss) for the period

January 1, 2010 thru
December 31, 2010

December 18, 2008 thru
December 31, 2009

517,440
64,930
582,370

(42,326)
(706)
(6)
(43,038)

539,332

-

1
1

(24,980)
(207)
(551)
(25,738)

(25,737)

S-3 

 
 
                       
                                    
                         
                                       
                       
                                       
                        
                             
                             
                                  
                                 
                                  
                        
                             
                     
                            
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

1. Basis of presentation 

Noble Corporation, a Swiss Corporation (“Noble”, “Noble Swiss”, the “Company”, “we”, “our” 
and words of similar  import),  is  a  holding company  listed  on  the  New York  Stock  Exchange  (“NYSE”), 
engaged in the management of companies which provide offshore drilling contract services for the oil and 
gas industry.     

On  March  26,  2009,  pursuant  to  the  previously  announced  Agreement  and  Plan  of  Merger, 
Reorganization and Consolidation, dated as of December 19, 2008 (as amended, the “Merger Agreement”), 
among  Noble-Swiss,  Noble  Corporation,  a  Cayman  Island  Company,  (“Noble-Cayman”),  and  Noble 
Cayman  Acquisition  Ltd.,  a  Cayman  Islands  company  and  a  wholly-owned  subsidiary  of  Noble-Swiss 
(“Noble-Acquisition”), Noble-Cayman merged by way of schemes of arrangement under Cayman Islands 
law  (the  “Schemes  of  Arrangement”)  with  Noble-Acquisition,  with  Noble-Cayman  as  the  surviving 
company  (the  “Transaction”).  Under  the  terms  of  the  Schemes  of  Arrangement,  each  holder  of  Noble-
Cayman ordinary shares outstanding immediately prior to the Transaction received, through an exchange 
agent, one Noble-Swiss registered share in exchange for each outstanding Noble-Cayman ordinary share, 
and  Noble-Cayman  received,  through  an  exchange  agent,  a  number  of  newly  issued  Noble-Cayman 
ordinary shares equal to the number of Noble-Cayman ordinary shares outstanding immediately prior to the 
Transaction.  Shares of Noble-Swiss trade on the NYSE under the symbol “NE”.  This transaction became 
effective under Swiss law on March 27, 2009. 

The  financial  statements  present  the  financial  position  of  the  holding  company  on  a  standalone 
basis and do not represent the consolidated financial position of the holding company and its subsidiaries. 
The accounts are prepared in accordance with Swiss Law (Swiss Code of Obligations).  All amounts in the 
notes are shown in thousands of Swiss Francs, unless otherwise stated. 

2. Significant accounting policies 

a) Cash and cash equivalents 

Cash and cash equivalents includes cash on hand and deposits with an original maturity of three 

months or less at time of purchase. 

b) Treasury shares  

Treasury  shares  are  classified  as  short-term  or  as  long-term  assets  on  the  balance  sheet  and  are 
valued at the cost of the shares which are purchased.  This classification in the balance sheet is consistent 
with management’s intent to cancel or retire a majority of our treasury shares within a one year period.  

c) Investments in subsidiaries 

Investments  in  subsidiaries  are  equity  interests,  which  are  held  on  a  long-term  basis  for  the 
purpose of the holding company’s business activities. They are carried at a value no higher than their cost, 
determined  via  reference  to  fair  market  value  or  amounts  paid  for  the  investment,  less  adjustments  for 
impairment, if any. The cost of the Company's primary investment in Noble-Cayman was determined by 
reference to fair market value of the contributed share capital of Noble-Cayman, on the basis of the closing 
price of the ordinary shares of Noble-Cayman as reported on the NYSE on the date of transaction, plus a 
premium, which was determined via a discounted cash flow analysis. 

d) Translation of foreign currencies 

Assets, other than investments in subsidiaries, and liabilities denominated in foreign currencies are 
converted  at  year  end  exchange  rates.  Revenues  and  expenses  denominated  in  foreign  currencies  are 

S-4 

 
 
 
  
 
 
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

converted  using  an  average  exchange  rate.  Unrealized  exchange  losses  are  recorded  in  the  statement  of 
income and unrealized exchange gains are deferred until realized. 

3. Significant investments  

As no changes occurred in the direct investment held by Noble Corporation in the year 2010, the 

chart below details significant investments of the Company as of both December 31, 2010 and 2009: 

Company 
Noble Services (Switzerland), LLC
Noble Financing Services, Limited
Noble Corporation

Country
Switzerland
Cayman Islands
Cayman Islands

% of 
Possession
100%
100%
100%

Currency
CHF
USD
USD

Purpose
Management Services
Financing Company
Holding Company

Amount

CHF 100
USD 50
USD 26,125

4. Shareholders Equity  

The following chart details our share capital as of December 31, 2010 and 2009, respectively : 

As of December 31, 2010

As of December 31, 2009

Shares 
252,275,227
10,140,488
262,415,715

13,849,978
276,265,693

138,132,846
138,132,846

Par Value (CHF)
991,442
39,852
1,031,294

Shares 
258,224,544
3,750,000
261,974,544

Par Value (CHF)
1,252,389
18,188
1,270,577

54,430
1,085,724

14,291,149
276,265,693

542,862
542,862

138,132,846
138,132,846

69,312
1,339,889

669,944
669,944

Shares traded
Treasury Shares
Subtotal

Shares held by wholly owned subsidiary
Total shares issued

Authorized capital
Conditional capital

a) Authorized capital  

As of December 31, 2010 and 2009 we had a total of 276,265,693 shares issued, respectively.  As 
of December 31, 2010 we had 252,275,227 shares traded as compared to 258,224,544 shares traded as of 
December 31, 2009.    

As of December 31, 2010, the board of directors is authorized to issue new registered shares at any 
time during the two-year period ending on March 26, 2011 and thereby increase the share capital, without 
shareholder  approval,  by  a  maximum  amount  of  CHF  542,862,000  divided  into  138,132,846  registered 
shares, each with a par value CHF 3.93 per share.  After the expiration of the initial two-year period, and 
each  subsequent  two-year  period,  authorized  share  capital  will  be  available  to  the  board  of  directors  for 
issuance of additional registered shares only if the authorization is reapproved by shareholders. 

In addition to the 0.15 CHF reduction in par value completed in 2009 the amounts as of December 
31, 2010 above include a return in capital of CHF 0.05, CHF 0.05, CHF 0.69 and CHF 0.13 respectively, in 
the  form  of  a  par  value  reduction.    As  of  December  31,  2010  our  Board  has  proposed  two  additional 
payments of CHF 0.13 each, in the form of a par value reduction, however these amounts are not reflected 
in the financials as they have not been registered with the Swiss Commercial Registry.  

S-5 

 
 
 
 
 
 
 
      
                
  
              
        
                  
      
                   
      
             
  
              
        
                  
    
                   
      
             
  
              
      
                
  
                 
      
                
  
                 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

b) Conditional Capital  

As of December 31, 2010, the share capital of the Company may be increased by an amount not 
exceeding  CHF  542,862,000  through  the  issuance  from  time  to  time  of  a  maximum  of  138,132,846 
registered  shares,  payable  in  full,  each  with  a  par  value  of  CHF  3.93,  in  connection  with  the  exercise  of 
option or restricted share unit rights granted to any employee by the Company or a subsidiary. 

c) Treasury shares  

Treasury shares are valued at cost. Management’s intent is to cancel 10,115,693 shares within the 
one year period and these shares are treated as current assets on the balance sheet.  The remaining shares 
are treated as a part of long term assets since Management intends to cancel outside of a one year period.  
The chart below details the shares held in treasury for the period December 10, 2008 through December 31, 
2010. 

Number of Shares

Company 
For year ended December 31, 2009
Opening Balance
Third Quarter
Fourth Quarter
Ending Balance

-

2,000,000
1,750,000
3,750,000

Lowest Cost

Highest Cost

Average Cost

Total Costs

CHF 36.08
CHF 41.64
CHF 36.08

CHF 37.54
CHF 44.40
CHF 44.40

CHF 37.18
CHF 42.61
CHF 39.71

CHF 74,354
CHF 74,571
CHF 148,925

For year ended December 31, 2010
First quarter
Second quarter
Third quarter
Fourth quarter
Ending balance

2,365,085
622
4,020,367
4,414
10,140,488

CHF 31.69
CHF 44.03
CHF 31.89
CHF 33.59
CHF 31.69

CHF 47.25
CHF 45.12
CHF 36.45
CHF 33.78
CHF 47.25

CHF 44.97
CHF 44.24
CHF 33.93
CHF 33.74
CHF 38.64

CHF 106,365
CHF 27
CHF 136,400
CHF 149
CHF 391,866

Less:  Par reduction on Treasury Shares

(CHF 6,095)

Value of Treasury Shares

CHF 385,771

In  addition  to  these  treasury  shares,  as  of  December  31,  2010,  a  subsidiary  holds  a  total 
13,849,978  (14,291,l49  as  of  December  31,  2009)  shares  with  a  par  value  of  CHF  54,430,000  (CHF 
69,321,000 as of December 31, 2009) which are reserved for employee plans.  

D) Share repurchase authorization 

In March 2009, the Board of Directors (the Board) authorized the plan of the predecessor company 
to repurchase the common shares, up to an aggregate total of 50,000,000 shares. At March 27, 2009 a total 
of  16,619,891  shares  remained  available  under  this  authorization.    These  purchases  may  take  place  from 
time  to  time  in  the  open  market  or  in  private  purchase  transactions.  From  March  27,  2009  through 
December 31, 2010 a total of 9,850,000 shares (3,750,000 as of December 31, 2009) were purchased under 
this authorization leaving a total of 6,769,891 shares which could be repurchased under this authorization 
as of December 31, 2010. 

5. Contingent liability  

The  company  is  a  member  of  a  VAT  group  and  is  therefore  jointly  and  severably  liable  for  the 

payment of the VAT liabilities of the other members of the Swiss VAT group. 

S-6 

 
 
 
 
 
                           
                
                
                
                
                          
                
                       
              
 
 
 
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

6. Remuneration of the Board of Directors and the Group Executives  

a) Basis of presentation 

The following information sets forth the compensation for the years ended December 31, 2010 and 
2009 for the members of the Board of Directors of Noble and Group Executives for all of the functions that 
they have performed for the Company.  Compensation is presented for the years ended December 31, 2010 
and  2009.  Compensation  of  the  Board  is  paid  by  Noble  or  one  of  its  subsidiaries.  Compensation  of  the 
Group Executives is paid by Noble and the group entities where they are employed.  Compensation is paid 
as  a  combination  of  both  U.S  dollars  and  Swiss  francs  though  the  following  tables  expresses  all 
remuneration details in whole Swiss francs with totals in both Swiss francs and U.S. dollars.  

b) Remuneration of the Board of Directors 

The compensation committee of our Board sets the compensation of our directors. In determining 
the  appropriate  level  of  compensation  for  our  directors,  the  compensation  committee  considers  the 
commitment required from our directors in performing their duties on behalf of the Company, as well as 
comparative  information  the  committee  obtains  from  compensation  consulting  firms  and  from  other 
sources.  During  the  years  ended  December  31,  2010  and  2009  no  directors  received  benefits  in  kind  or 
waivers of claims and no compensation was paid to any related party of current or former directors nor did 
any related parties of current or former directors receive any benefits in kind or waivers of claim.  As of 
December  31,  2010  and  2009  no  current  or  former  directors  or  any  related  party  of  current  or  former 
directors had any outstanding loans or credits from the Company.  Set forth below is a description of the 
compensation of our directors.  

i) Annual Retainers and Other Fees and Expenses.  

We pay our non-employee directors an annual retainer of $50,000 (CHF 52,145 in 2010 and CHF 
54,287 in 2009) of which 20 percent is paid in shares under the Noble Corporation Equity Compensation 
Plan for Non-Employee Directors. Under this plan, non-employee directors may elect to receive up to all of 
the  remaining  80  percent  in  shares  or  cash.  Non-employee  directors  make  elections  on  a  quarterly  basis. 
The number of shares to be issued under the plan in any particular quarter is generally determined using the 
average  of  the  daily  closing  prices  of  the  shares  for  the  last  15  consecutive  trading  days  of  the  previous 
quarter.  No  options  are  issuable  under  the  plan,  and  there  is  no  “exercise  price”  applicable  to  shares 
delivered under the plan.  

In  addition,  we  pay  our  non-employee  directors  a  Board  meeting  fee  of  $2,000  (CHF  2,086  in 
2010  and  CHF  2,171  in  2009). We pay  each  member  of  our  audit  committee  a  committee  fee  of  $2,500 
(CHF  2,607  in  2010  and  CHF  2,714  in  2009)  per  meeting  and  each  member  of  our  other  committees  a 
committee meeting fee of $2,000 (CHF 2,086 in 2010 and CHF 2,171 in 2009) per meeting. The chair of 
the audit committee receives an annual retainer of $15,000 (CHF 15,644 in 2010 and CHF 16,286 in 2009), 
the chair of the compensation committee receives an annual retainer of $12,500 (CHF 13,035 in 2010 and 
CHF 13,572 in 2009) and the chair of each other standing Board committee receives an annual retainer of 
$10,000 (CHF 10,429 in 2010 and CHF 10,857 in 2009). We also reimburse directors for travel, lodging 
and related expenses they may incur in attending Board and committee meetings. 

ii) Non-Employee Director Stock Options and Restricted Shares.  

Under the 1992 Plan, each annually-determined award of a variable number of Restricted Shares 
or unrestricted shares is made on a date selected by the Board, or if no such date is selected by the Board, 
the date on which the Board action approving such award is taken. Any future award of Restricted Shares 
will be evidenced by a written agreement that will include such terms and conditions not inconsistent with 
the terms and conditions of the 1992 Plan as the Board considers appropriate in each case.  

S-7 

 
 
 
 
 
           
 
 
           
  
           
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

On  July 31, 2009,  an  award of 8,961 unrestricted  shares under  the 1992  Plan was  made  to  each 
non-employee  director  serving  on  that  date.  Based  on  a  review  of  market  data  provided  by  the 
compensation  consultant,  the  market  value  of  this  award  approximated  the  75th  percentile  of  the 
compensation  paid  to  non-employee  directors  in  the  comparator  groups.  The  grant  date  fair  value  of  the 
53,766  unrestricted  share  award  was  $1.8  million  (CHF  2.0  million)  which  value  was  immediately 
recognized by the Company at the time of the award. 

On October 31, 2009 two new directors were named to the Board.  In connection with this election 
the Company granted both elected board members 6,721 unrestricted shares.  Based on a review of market 
data  provided  by  the  compensation  consultant,  the  market  value  of  this  award  approximated  the  75th 
percentile  of  the  compensation  paid  to  non-employee  directors  in  the  comparator  groups.  The  grant  date 
fair  value  of  the  13,422  unrestricted  share  award  was  $0.5  million  (CHF  0.6  million)  which  value  was 
immediately recognized by the Company at the time of the award. 

On  July 31, 2010,  an  award of 9,255 unrestricted  shares under  the 1992  Plan was  made  to  each 
non-employee  director  serving  on  that  date.  Based  on  a  review  of  market  data  provided  by  the 
compensation  consultant,  the  market  value  of  this  award  approximated  the  75th  percentile  of  the 
compensation  paid  to  non-employee  directors  in  the  comparator  groups.  The  value  of  the  74,040 
unrestricted  share  award  was  $2.4  million  (CHF  2.5  million)  which  was  immediately  recognized  by  the 
Company at the time of the award. 

The  following  table  shows  the  compensation  of  our  directors  for  the  year  ended  December 31, 
2010  and  2009.  Although  David  W.  Williams  is  Chairman  of  the  Board,  details  of  Mr.  Williams 
compensation are included in Section C. 

For the Year Ended December 31, 2010

Director Name
Michael A. Cawley
Lawrence J. Chazen
Julie H. Edwards
Gordon T. Hall
Marc E. Leland
Jack E. Little
Jon A. Marshall
Mary P. Ricciardello
Total

Board 
Function
Lead Director
Director
Director
Director
Director
Director
Director
Director

Fee Earned or 
Paid in Cash
90,993
88,647
91,775
88,647
100,640
77,175
79,260
104,290
721,427

Stock 
Awards

313,692
313,692
313,692
313,692
313,692
313,692
313,692
313,692
2,509,536

All Other

-
-
-
-
-
-
-
-
-

Total in CHF
404,685
402,339
405,467
402,339
414,332
390,867
392,952
417,982
3,230,963

Total in USD
$        
388,038
385,788
388,788
385,788
397,288
374,788
376,788
400,788
3,098,054

$    

S-8 

 
 
 
 
           
       
            
        
           
       
            
        
          
           
       
            
        
          
           
       
            
        
          
         
       
            
        
          
           
       
            
        
          
           
       
            
        
          
         
       
            
        
          
        
  
         
     
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

For the Year Ended December 31, 2009

Director Name
Michael A. Cawley
Lawrence J. Chazen
Julie H. Edwards
Gordon T. Hall
Marc E. Leland
Jack E. Little
Jon A. Marshall
Mary P. Ricciardello
Total

Board 
Function
Lead Director
Director
Director
Director
Director
Director
Director
Director

Fee Earned or 
Paid in Cash
102,601
87,401
92,830
4,886
98,259
78,715
4,343
106,402
575,437

Stock 
Awards

329,431
329,431
329,431
309,400
329,431
329,431
309,400
329,431
2,595,386

All Other
116
116
-
-
116
116
-
116
580

Total in CHF
432,148
416,948
422,261
314,286
427,806
408,262
313,743
435,949
3,171,403

Total in USD
$        
398,026
384,026
388,919
289,470
394,026
376,026
288,970
401,526
2,920,989

$    

c) Remuneration of Group Executives 

The compensation committee of our Board is responsible for determining the compensation of our 
directors  and  executive  officers  and  for  establishing,  implementing  and  monitoring  adherence  to  our 
executive  compensation  philosophy.  The  compensation  committee  provides  guidance  to  our  Board  in 
incentive  and  equity-based 
the  compensation  programs,  benefits, 
reviewing  and  administering 
compensation  plans.  The  compensation  committee  operates  independently  of  management  and  receives 
compensation advice and data from outside advisors. 

The  Company  believes  that  its  executive  compensation  program  reflects  the  Company’s 
philosophy  that  executive  compensation  should  be  structured  so  as  to  closely  align  each  executive’s 
interests  with  the  interests  of  our  shareholders.  The  program  is  designed  to  emphasize  equity-based 
incentive  and  performance-based  pay  and,  in  order  to  promote  an  atmosphere  of  teamwork,  fairness  and 
motivation; these concepts extend beyond the named executive officers to other key employees throughout 
the  Company.  The  primary  objectives  of  the  Company’s  total  compensation package  are  to  motivate  our 
executives  to  assist  the  Company  in  achieving  certain  operating  and  financial  performance  goals  that 
enhance shareholder value, to reward outstanding performance in achieving these goals and to establish and 
maintain  a  competitive  executive  compensation  program  that  enables  the  Company  to  attract,  retain  and 
motivate high caliber executives who will contribute to the long-term success of the Company. When used 
in  this  Remuneration  section,  the  term  “Group  Executives”  means  those  persons  listed  in  the  Summary 
Compensation Table below. 

There have been no changes in the composition of the Group Executives during the current year.  
In  addition  there  have  been  no  payments  to  former  Group  Executives  nor  had  any  such  person  received 
benefits  in  kind  from  the  Company.    As  of  December  31,  2010  and  2009,  no  current  or  former  Group 
Executives  or  any  related  party  of  current  or  former  Group  Executives  had  outstanding  loans  or  credits 
from the Company. 

S-9 

         
       
           
        
           
       
           
        
          
           
       
            
        
          
             
       
            
        
          
           
       
           
        
          
           
       
           
        
          
             
       
            
        
          
         
       
           
        
          
        
  
         
     
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

The below chart details the compensation, based upon an accrual basis of accounting, of the Group 

Executives: 

Title
Chairman, 
President and 
Chief Executive 
Officer

Title
Chairman, 
President and 
Chief Executive 
Officer

Employee Name

David W. Williams
Other Group 
Executives
Total

Employee Name

David W. Williams
Other Group 
Executives
Total

Salary

Bonus

Stock Award (1)

Option Award (2)

All Other 
Compensation

Total in CHF

Total in USD

For the Year Ended December 31, 2010 

1,026,022

1,303,713

4,509,400

1,169,073

1,989,055

9,997,263

$             

9,585,376

2,640,019
3,666,041

2,224,186
3,527,899

5,181,915
9,691,315

1,343,402
2,512,475

5,936,037
7,925,092

17,325,559
27,322,822

16,611,746
26,197,122

$          

Salary

Bonus

Stock Award (1)

Option Award (2)

All Other 
Compensation

Total in CHF

Total in USD

For the Year Ended December 31, 2009 

870,393

1,628,595

4,744,272

948,315

884,583

9,076,158

$             

8,359,498

2,118,768
2,989,161

2,790,326
4,418,921

6,128,488
10,872,760

856,712
1,805,027

2,166,631
3,051,214

14,060,925
23,137,083

12,950,663
21,310,161

$          

(1)  Valued  based  upon  the  fair  value  at  the  date  of  grant  for  all  time  vested  awards  and  based  upon  a 

Monte Carlo Simulation for all performance vested awards. 

(2)  Value based upon a Black-Scholes model on the date of the option grant.  

S-10 

  
         
         
           
               
                
            
         
         
           
               
                
          
             
         
         
         
             
              
          
            
         
           
                  
                   
            
         
         
           
                  
                
          
             
         
         
       
             
              
          
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

7. Common Share ownership of the Board of Directors and Group Executives 

a) Board of Directors 

The following table sets forth information, as of December 31, 2010 and 2009, with respect to the 
beneficial  ownership  of  Common  Shares  by  each  of  our  directors.    No  related  parties  own  shares  in  the 
Company.    Although  David  W.  Williams  is  Chairman  of  the  Board,  details  of  Mr.  Williams  share 
ownership are included in Section B. 

Director Name

Michael A. Cawley
Lawrence J. Chazen
Julie H. Edwards
Gordon T. Hall

Marc E. Leland
Jack E. Little
Jon A. Marshall

Mary P. Ricciardello
Total

Function
Lead Director
Director
Director
Director
Director & 
Compensation 
Committee Chair
Director
Director
Director & Audit 
Committee Chair

As of December 31, 2010

Common Shares 
Beneficially 
Owned

Outstanding 
Options

Weighted Average 
Option Exercise 
Price in CHF

Weighted Average 
Option Exercise 
Years

62,170
38,634
35,937
13,238

81,676
58,719
13,204

47,445
351,023

63,000
18,000
20,000
-

63,000
63,000
-

28,000
255,000

20.15
26.54
38.65
-

20.15
20.15
-

21.75
22.31

2.32
2.32
5.33
-

2.32
2.32
-

3.75
2.71

Director Name

Michael A. Cawley
Lawrence J. Chazen
Julie H. Edwards
Gordon T. Hall

Marc E. Leland
Jack E. Little
Jon A. Marshall

Mary P. Ricciardello
Total

Function
Lead Director
Director
Director
Director
Director & 
Compensation 
Committee Chair
Director
Director
Director & Audit 
Committee Chair

As of December 31, 2009

Common Shares 
Beneficially 
Owned

Outstanding 
Options

Weighted Average 
Option Exercise 
Price in CHF

Weighted Average 
Option Exercise 
Years

53,838
30,482
28,339
5,376

67,078
50,241
5,376

39,151
279,881

63,000
18,000
20,000
-

70,000
83,000
-

28,000
282,000

22.27
29.34
42.73
-

21.95
21.49
-

24.05
23.19

3.32
3.33
6.35
-

3.02
2.60
-

4.75
3.22

S-11 

 
 
 
 
                  
                
                        
                       
                  
                
                        
                       
                  
                
                        
                       
                  
                      
                            
                         
                  
                
                        
                       
                  
                
                        
                       
                  
                      
                            
                         
                  
                
                        
                       
              
            
                       
                     
 
 
                  
                
                        
                       
                  
                
                        
                       
                  
                
                        
                       
                    
                      
                            
                         
                  
                
                        
                       
                  
                
                        
                       
                    
                      
                            
                         
                  
                
                        
                       
              
            
                       
                     
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

b) Group Executives 

The following table sets forth information, as of December 31, 2010 and 2009, with respect to the 
beneficial ownership of Common Shares by each of our Group Executives.  No related persons own shares 
as of December 31, 2010 and 2009, respectively. 

Director Name

Function

Common Shares 
Beneficially 
Owned

Outstanding 
Options

Weighted Average 
Option Exercise 
Price in CHF

Option Exercise 
Years

Restricted 
Stock

As of December 31, 2010

David W. Williams

Julie J. Robertson

Thomas L. Mitchell

William E. Turcotte

Donald E. Jacobsen 

Roger B. Hunt

Scott W. Marks
Total

Chairman of the Board, 
President and Chief 
Executive Officer
Executive Vice President 
and Corporate Secretary
Senior Vice President, 
Chief Financial Officer, 
Treasurer and Controller
Senior Vice President and 
General Counsel
Senior Vice President- 
Operations 
Senior Vice President – 
Marketing and Contracts
Senior Vice President- 
Engineering 

501,350

571,739

349,427

430,116

216,454

169,330

50,780

26,913

20,311

22,523

12,184

12,184

62,260
1,449,807

30,679
1,026,443

31.04

20.84

32.38

30.21

36.97

36.97

25.95
26.96

7.34

3.30

6.84

8.68

9.11

9.11

5.44
5.58

363,272

144,743

125,635

34,641

19,678

14,850

25,952
728,771

Director Name

Function

Common Shares 
Beneficially 
Owned

Outstanding 
Options

Weighted Average 
Option Exercise 
Price in CHF

Option Exercise 
Years

Restricted 
Stock

As of December 31, 2009

David W. Williams

Julie J. Robertson

Thomas L. Mitchell

William E. Turcotte

Donald E. Jacobsen 

Roger B. Hunt

Scott W. Marks
Total

Chairman of the Board, 
President and Chief 
Executive Officer
Executive Vice President 
and Corporate Secretary
Senior Vice President, 
Chief Financial Officer, 
Treasurer and Controller
Senior Vice President and 
General Counsel
Senior Vice President- 
Operations 
Senior Vice President – 
Marketing and Contracts
Senior Vice President- 
Engineering 

572,976

619,675

279,978

509,403

258,612

151,054

54,428

29,516

22,275

10,339

-

-

56,881
1,614,363

26,415
977,189

32.70

22.10

35.18

24.59

-

-

26.73
27.31

7.89

3.38

7.56

9.18

-

-

5.84
5.45

488,681

232,135

196,587

47,073

29,516

22,275

35,746
1,052,013

S-12 

 
 
                
              
                        
                    
          
                
              
                        
                    
          
                
              
                        
                    
          
                  
                
                        
                    
            
                  
                
                        
                    
            
                  
                
                        
                    
            
                  
                
                        
                    
            
           
         
                       
                   
        
 
 
                
              
                        
                    
          
                
              
                        
                    
          
                
              
                        
                    
          
                  
                
                        
                    
            
                  
                      
                            
                      
            
                  
                      
                            
                      
            
                  
                
                        
                    
            
           
            
                      
                    
     
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

8. Significant Shareholders  

The  following  table  sets  forth  information  regarding  each  person,  including  corporate  groups, 
known  to  the  Company  to  own  beneficially  or  of  record  more  than  five  percent  of  the  Company’s 
outstanding Trading Shares as of December 31, 2010 and 2009, respectively. 

Name of Beneficial Owner
Fidelity Management and Research, LLC
Wentworth, Hauser & Violich, Inc.

Name of Beneficial Owner
Fidelity Management and Research, LLC
BlackRock, Inc.
Wentworth, Hauser & Violich, Inc.

9. Risk assessment and management   

As of December 31, 2010

Number of Shares 
Beneficially Owned
20,865,724
15,236,009

Percent of Class
8.27%
6.04%  

As of December 31, 2009

Number of Shares 
Beneficially Owned
25,440,095
18,014,199
13,892,238

Percent of Class
9.85%
6.98%
5.38%  

The Board of Directors, together with the management of Noble, is responsible for assessing risks 
related  to  the  financial  reporting  process  and  for  establishing  and  maintaining  adequate  internal  control 
over  financial  reporting.  The  Corporate  Risk  Management  function  coordinates  and  aligns  the  risk 
management  process  and  reports  to  the  Board,  the  Audit  Committee,  and  the  Corporate  Governance 
Committee  on  a  regular  basis  on  risk  assessment  and  risk  management.    Organizational  and  process 
measures  have  been  designed  to  identify  and  mitigate  risks.    Organizationally  the  responsibility  for  risk 
assessment  and  management  is  allocated  to  the  Divisions  with  specialized  Corporate  Functions  such  as 
Financial  Reporting  &  Accounting,  Treasury,  Health  Safety  and  Environment,  and  Business  Continuity 
providing support and controlling the effectiveness of the risk management by the Divisions.   

Internal control over financial reporting is a process designed by, or under the supervision of the 
Chief  Executive  Officer  and  Chief  Financial  Officer  to  provide  reasonable  assurance  regarding  the 
reliability  of  financial  reporting  and  the  preparation  of  Noble’s  consolidated  financial  statements  for 
external purposes in accordance with GAAP. 

The  Board,  operating  through  its  Audit  Committee  composed  entirely  of  directors  who  are  not 
officers or employees of the Company, is responsible for oversight of the financial reporting process and 
safeguarding  of  assets  against  unauthorized  acquisition,  use,  or  disposition.  The  Audit  Committee  meets 
with  management,  the  independent  registered  public  accountants  and  the  internal  auditor;  approves  the 
overall  scope  of  audit  work  and  related  fee  arrangements;  and  reviews  audit  reports  and  findings.  In 
addition,  the  independent  registered  public  accountants  and  the  internal  auditor  meet  separately  with  the 
Audit  Committee,  without  management  representatives  present,  to  discuss  the  results  of  their  audits;  the 
adequacy of the Company’s internal control; the quality of its financial reporting; and the safeguarding of 
assets against unauthorized acquisition, use, or disposition. 

S-13 

 
 
               
               
 
               
               
               
 
 
 
 
 
NOBLE CORPORATION (NOBLE-SWISS) 
NOTES TO SWISS STATUTORY FINANCIAL STATEMENTS 
Unless otherwise indicated, CHF amounts in tables are in thousands except per share data and compensation 

10. Other Disclosures Required by Swiss Law    

Expenses 

Total personnel expenses and depreciation expenses related to property totaled CHF 0 and CHF 0, 
respectively for the period for the year ended December 31, 2010 and the period from December 10, 2008 
to December 31, 2009. 

11. Movements on retained earnings (accumulated deficit) 

The total retained earnings / (accumulated deficit) is as follows: 

Retained earnings/(accumulated deficit) at 
beginning of period
Net income/(loss)
Retained earnings/(accumulated deficit) at 
disposal of the annual general meeting

January 1, 2010 
thru December 
31, 2010 

December 10, 
2008 thru 
December 31, 
2009 

(25,737)
539,332

513,595

-
(25,737)

(25,737)

S-14 

 
 
 
 
 
 
 
 
              
                     
             
              
             
              
 
 
Proposal of the Board of Directors for appropriation of retained earnings  

 2010 Proposal of 
the Board of 
Directors 

 2009 Resolution 
of the annual 
general meeting  

(CHF in thousands)

Proposal of the Board of Directors for appropriation of retained earnings

Accumulated deficit as of January 1, 2010 and December 18, 2008, respectively:

(25,737)

-

Profit/ (Loss) for the period January 1, 2010 thru December 31, 2010 and December 18, 2008 thru 
December 31, 2009, respectively:

Retained earnings at the disposal of the annual general meeting

Allocation to legal reserve -- reserves for own shares to be acquired, funded from retained earnings

Retained earnings to be carried forward

539,332

513,595

(345,073)

168,522

(25,737)

(25,737)

-

(25,737)

The above appropriation of retained earnings is proposed by the Board of Directors in response to 
the  newly  issued  tax-related  capital  contribution  principle  coupled  with  the  proposed  capital  reduction 
through  cancellation  of  10,115,693  treasury  shares.    The  potential  approval  of  the  cancellation  of 
10,115,693 treasury shares by the annual general shareholders' meeting will cause a partial reduction of the 
reserve  for  own  shares  to  be  acquired,  funded  from  capital  contribution,  in  the  amount  of  CHF  345,073. 
This  does  not  represent  a  tax  beneficial  solution,  as  the  capital  contribution  principle  allows  for  a 
repayment to shareholders of capital contributions in the same way as a repayment of nominal capital. In 
regards  to  withholding  tax,  such  repayments  are  generally  tax-free.      Additionally,  repayments  of  capital 
contributions  to  Swiss  tax  resident  individuals  (who  hold  shares  as  private  assets)  will  no  longer  be 
considered  taxable  income.  To  avoid  the  loss  of  such  potential  tax  beneficial  repayments,  the  Board  of 
Directors recommends first creating a reserve for own shares, funded from retained earnings, and second 
reducing  this  reserve  for  own  shares,  funded  from  retained  earnings,  when  the  cancellation  of  treasury 
shares is approved and executed. 

S-15 

 
 
 
                 
                        
                 
                 
                 
                 
               
                        
                 
                 
 
 
Report of the statutory auditor 
to the general meeting of 
Noble Corporation   
Baar 

Report of the statutory auditor on the financial statements 

As statutory auditor, we have audited the financial statements of Noble Corporation, which comprise the 
balance sheet, statement of income and notes (pages S2 to S14), for the year ended December 31, 2010. 

Board of Directors’ Responsibility 
The Board of Directors is responsible for the preparation of the financial statements in accordance with the 
requirements of Swiss law and the company’s articles of incorporation. This responsibility includes 
designing, implementing and maintaining an internal control system relevant to the preparation of financial 
statements that are free from material misstatement, whether due to fraud or error. The Board of Directors 
is further responsible for selecting and applying appropriate accounting policies and making accounting 
estimates that are reasonable in the circumstances.  

Auditor’s Responsibility 
Our responsibility is to express an opinion on these financial statements based on our audit. We conducted 
our audit in accordance with Swiss law and Swiss Auditing Standards. Those standards require that we plan 
and perform the audit to obtain reasonable assurance whether the financial statements are free from 
material misstatement.  

An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the 
financial statements. The procedures selected depend on the auditor’s judgment, including the assessment 
of the risks of material misstatement of the financial statements, whether due to fraud or error. In making 
those risk assessments, the auditor considers the internal control system relevant to the entity’s preparation 
of the financial statements in order to design audit procedures that are appropriate in the circumstances, but 
not for the purpose of expressing an opinion on the effectiveness of the entity’s internal control system. An 
audit also includes evaluating the appropriateness of the accounting policies used and the reasonableness of 
accounting estimates made, as well as evaluating the overall presentation of the financial statements. We 
believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our 
audit opinion. 

Opinion 
In our opinion, the financial statements for the year ended December 31, 2010 comply with Swiss law and 
the company’s articles of incorporation. 

S-16 

 
 
 
 
 
 
 
 
Report on other legal requirements 

We confirm that we meet the legal requirements on licensing according to the Auditor Oversight Act 
(AOA) and independence (article 728 CO and article 11 AOA) and that there are no circumstances 
incompatible with our independence. 

In accordance with article 728a paragraph 1 item 3 CO and Swiss Auditing Standard 890, we confirm that 
an internal control system exists which has been designed for the preparation of financial statements 
according to the instructions of the Board of Directors. 

We further confirm that the proposed appropriation of available earnings complies with Swiss law and the 
company’s articles of incorporation. We recommend that the financial statements submitted to you be 
approved. 

PricewaterhouseCoopers AG 

Joanne Burgener 
Audit expert 
Auditor in charge 

Zug, February 25, 2011 

Claudia Muhlinghaus 

S-17 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     Year Ended December 31, 

2010 

2009 

2008 

$2,807,176 

$3,640,784 

$3,446,501 

916,080 

916,509 

773,429 

3.02 

1,654,376 

1,423,484 

12% 

2,010,744 

2,015,902 

1,678,642 

6.42 

2,136,716 

1,431,498 

34% 

1,908,403 

1,912,458 

1,560,995 

5.81 

1,888,192 

1,231,321 

39% 

$11,221,321 

$8,396,896 

$7,106,799 

10,048,087 

6,634,452 

5,647,017 

2,766,697 

7,287,634 

28.89 

750,946 

923,487 

6,788,432 

5,290,715 

26.29 

20.20 

Noble Corporation Financial Highlights

(In thousands, except per share amounts and percentages)  

Operating revenues  

Operating income  

Income before income taxes  

Net income attributable to Noble Corporation 

Net income per diluted share   

Net cash provided by operating activities  

Capital expenditures  

Return on capital employed  

At year end: 

Total assets  

Property and equipment, net  

Total debt  

Total equity  

Book value per share  

In  2010,  Noble  continued  its 
strategy  to  add  rigs  with  the 
latest  technology,  equipment, 
and  capabilities.  With  nine  rigs 
currently  under  construction, 
including seven ultra-deepwater 
drillships,  which  are  slated  to 
join the recently delivered Noble 
Jim  Day  (right),  Noble  Danny 
Adkins,  Noble  Dave  Beard, 
and  Noble  Clyde  Boudreaux, 
Noble’s  ultra-deepwater  fleet  is 
becoming  one  of  the  finest  in 
the industry.

Board of Directors

Michael A. Cawley 2, 3, 4
President and Chief 
Executive Officer –  
The Samuel Roberts 
Noble Foundation, Inc. 
Director since 1985.

Contact the Board 
If you would like to contact the  
Noble Corporation Board of  
Directors, write to:

Noble Corporation Board of Directors
Dorfstrasse 19a
6340 Baar, Switzerland
or send an e-mail to:
Nobleboard@noblecorp.com

Lawrence J. Chazen 1
Chief Executive Officer – 
Lawrence J. Chazen, Inc. 
Director since 1994.

Julie H. Edwards 1, 3
Former Senior Vice President 
and Chief Financial Officer – 
Southern Union Company. 
Director since 2006.

For additional information about  
Noble Corporation, please refer to 
our proxy statement which is being 
mailed or made available with this 
Annual Report.

Gordon T. Hall 1
Chairman of the Board –
Exterran Holdings, Inc.
Director since 2009.

Marc E. Leland 2, 3
President – Marc E. 
Leland & Associates, Inc.  
Director since 1994.

Jack E. Little 2
Former President and 
Chief Executive Officer – 
Shell Oil Company. 
Director since 2000.

Jon A. Marshall 2
Former President and Chief 
Operating Officer –
Transocean Inc.
Director since 2009.

Mary P. Ricciardello 1
Former Senior Vice President 
and Chief Accounting Officer – 
Reliant Energy, Inc. 
Director since 2003.

David W. Williams 
Chairman, President and  
Chief Executive Officer
Noble Corporation
Director since 2008.

1 Audit Committee   2 Compensation Committee   3 Nominating and Corporate Governance Committee   4 Lead Director

Corporate Information

Transfer Agent and Registrar
Computershare Trust Company, N.A.
Canton, Massachusetts

Independent Auditors
PricewaterhouseCoopers AG
Zug, Switzerland

PricewaterhouseCoopers LLP
Houston, Texas

Shares Listed on  
New York Stock Exchange
Trading Symbol “NE”

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Form 10-K
A copy of Noble Corporation’s 2010 Annual 
Report on Form 10-K, as filed with the U.S. 
Securities and Exchange Commission, will be 
furnished without charge to any shareholder 
upon written request to: 
Julie J. Robertson - Executive Vice President 
and Corporate Secretary
Noble Corporation
Dorfstrasse 19a
6340 Baar, Switzerland

Annual Meeting
The Annual Meeting of Shareholders of Noble 
Corporation will be held on April 29, 2011, at 
3:00 p.m. local time at the Parkhotel Zug in 
Zug, Switzerland.

Corporate Officers
David W. Williams
Chairman, President and
Chief Executive Officer

Julie J. Robertson
Executive Vice President
and Corporate Secretary

Roger B. Hunt
Senior Vice President –
Marketing & Contracts 

Donald E. Jacobsen
Senior Vice President –  
Operations

Scott W. Marks
Senior Vice President – 
Engineering

Thomas L. Mitchell
Senior Vice President,  
Chief Financial Officer, 
Treasurer and Controller 

William E. Turcotte
Senior Vice President and
General Counsel

Investor Information
You can learn more about our 
operations and our Company  
by visiting our Web site at 
www.noblecorp.com. 
Shareholders, brokers, securities 
analysts or portfolio managers 
seeking information about Noble 
Corporation are welcome to contact: 
Lee M. Ahlstrom, Vice President – 
Investor Relations and Planning, 
Noble Drilling Services Inc.,  
by phone at: 281-276-6100 or by 
e-mail at: lahlstrom@noblecorp.com.

Forward Looking Statements
Any statements included in this 2010 
Annual Report that are not historical 
facts, including without limitation 
regarding future market trends and 
results of operations are forward-
looking statements within the 
meaning of applicable securities law.

 
 
 
  
 
   
  
  
  
  
  
  
 
 
 
 
 
 
 
Noble Corporation
Dorfstrasse 19a
6340 Baar
Switzerland
www.noblecorp.com

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Noble Corporation 2010 Annual Report