Fortune 200In 2006, Fortune magazine ranked Oxy No. 124 on its list of America’s largest corporations.

For 2007, Oxy was ranked second among Most Admired Companies in the crude oil production and mining category by Fortune magazine.

Corporate snapshotWinter 2007/Spring 2008

Oxy’s market capitalization is more than $60 billion, larger than GM and Ford combined.

most admired

$60 billion

oil and gasOxy is an international oil and gas exploration and production company with operations in the United States, Middle East, North Africa and Latin America.

since 1920

nine thousand

Oxy has been headquartered in California since 1920.

Oxy has more than 9,000 employees in the United States and worldwide, including Argentina, Bolivia, Brazil, Canada, Chile, Colombia, Libya, Oman, Qatar, United Arab Emirates and Yemen.

536% growthFrom 1997 through 2007, Oxy’s market capitalization grew by 536 percent to over $63 billion.

499% increase

fourth- largest

If you had $100 invested in Oxy stock at the end of 2002, it would have yielded $599 at the end of 2007. Investing the same $100 in the S&P 500 Index would have yielded only $183.

Oxy is the fourth-largest U.S. oil and gas company, based on market capitaliza-tion. Oxy’s 2007 production from the U.S. was 63 percent.

$3.5 billionOxy’s 2007 capital expenditure of $3.5 billion exceeded the combined capital expenditures of the Coca-Cola Company and the Boeing Company.

31 million

15 million

Oxy’s 2007 oil production would fuel 31 million coast-to-coast car trips from Los Angeles to New York.

Oxy’s partnership with Dolphin Energy Limited in the United Arab Emirates annually produces enough natural gas to supply all of the residential consumers in California, Florida, Louisiana and Texas (15 million).

$8 billionFrom 1990 through 2007, Oxy paid $8 billion in divi-dends to its shareholders.

Source of Oxy 2007 Production

Oxy is the largest oil producer in Texas. In California, Oxy is the largest natural gas producer and third-largest oil producer. Oxy is a leader in enhanced oil recovery, a technology that may increase ultimate oil recovery by 15 to 30 percent.

biggest in Texas

worldwide operationsUnited States1. Elk Hills 2. Long Beach 3. Permian Basin 4. Mid-Continent

Latin America5. Colombia 6. Bolivia 7. Argentina

Middle East/North Africa8. Libya 9. Qatar 10. United Arab Emirates 11. Oman 12. Yemen

2

1

3

4

5

6

7

89

11

12

10

largestin U.S.

12.57% dividend growth

Oxy is the largest merchant marketer of chlorine and caustic soda in the United States.

Oxy has increased its dividend to stockholders six times since 2002, resulting in a compound annual dividend growth rate of 12.57 percent over the last five years.

63%

24% 13%

$ in billionsNet Income

1.5

2.6

5.3

4.2

5.4

$ in billionsCore Results*

1.52.1

3.54.1

2.9

$ per common shareAnnual Dividend

0.52

2003

0.55

2004

0.645

2005

0.80

2006

0.94

2007

$ in billionsTotal Equity

8.010.6

15.1

19.321.1

stated as percentReturn on Equity

2228

41

24 26

$ in billionsTotal Debt

4.63.9

3.0 2.9

2.0

June2007

Thomson FinancialStock Price

stated as percent

Total Stockholder Return 2003-2007

499

235

7883

thousands of BOE/day(Includes consolidated subsidiaries and investments in other interests.)

Production

448 451 466545 570

2007

37 27 17 13 9

2003 2004 2005 2006 2007

2003 2004 2005 2006 9 mos. 2007

2003 2004 2005 20062003 2004 2005 2006

2003 2004 2005 2006

June2007

2003 2004 2005 2006 2007

OxyS&P 500 Integrated Oil & Gas

Index

Dow Jones

Industrial Index

S&P 500 Index

debt/cap percentage

$ in billionsTotal Assets

18.221.4

26.1

32.436.5

$ in billionsNet Sales

8.610.4

14.2

17.2 18.8

20072003 2004 2005 2006 2003 2004 2005 2006 2007

8070605040302010

02003 2004 2005 2006 2007

For additional information, refer to Oxy’s 2007 Form 10-K, available at www.oxy.com or by calling 888-OXY-PETE. Forward Looking Statements: Statements in this fact sheet that contain words such as “will” or “expect” or otherwise relate to the future are forward-looking and involve risks and uncertainties that could significantly affect expected results. Factors that could cause results to differ materially include, but are not limited to: exploration risks, such as drilling of unsuccessful wells; global commodity pricing fluctuations and supply/demand considerations; higher than expected costs; political risk; change in tax rates; potential failure to achieve expected production from development projects and not successfully completing (or any material delay in) any expansion, capital expenditure, acquisition or disposition. Unless legally required, Oxy may not update forward looking statements. Some prior year amounts may have been retrospectively changed to conform to current year presentations in accordance with GAAP.