10 December 2014

This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of Anadarko believes that its expectations are based on reasonable assumptions. No assurance, however, can be given that such expectations will prove to have been correct. A number of factors could cause actual results to differ materially from the projections, anticipated results, or other expectations expressed in this presentation, including Anadarko’s ability to timely complete and commercially operate the projects and drilling prospects identified in this presentation. See “Risk Factors” in the company’s 2013 Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and other public filings and press releases. Anadarko undertakes no obligation to publicly update or revise any forward-looking statements. Please also see our website at under “Investor Relations” for reconciliations of the differences between any non-GAAP measure used in this presentation and the most directly comparable GAAP financial measures. Cautionary Note to Investors: The United States Securities and Exchange Commission (“SEC”) permits oil and gas companies, in their filings with the SEC, to disclose only proved, probable and possible reserves that meet the SEC’s definitions for such terms. Anadarko uses certain terms in this news release, such as “gross recoverable resources” and similar terms that the SEC’s guidelines strictly prohibit Anadarko from including in filings with the SEC. U.S. investors are urged to consider closely the disclosure in Anadarko’s Form 10-K for the year ended Dec. 31, 2013, File No , available from Anadarko at or by writing Anadarko at: Anadarko Petroleum Corporation, 1201 Lake Robbins Drive, The Woodlands, Texas 77380, Attn: Investor Relations. This form may also be obtained by contacting the SEC at SEC Regarding Forward Looking Statements and Other Matters 2

Among the world’s largest independent oil and natural gas E&P companies with production rates of ~850,000 bbls of oil equivalent per day Active in 12+ countries with 6,000+ employees worldwide The 3 rd largest natural gas producer in the US and a leader in unconventional resource development Recognised for best-in-class in deepwater exploration and appraisal success An industry leader in project management Production Exploration and Appraisal 3

4 Discovered 16 fields Three major development projects in the Sahara Desert: Hassi Berkine Sud, Ourhoud, El Merk Produced 1.9+ billion bbls of oil to date Peak production rates of 500,000+ bbl per day Current production rates of ~400,000 bbl per day

First visit to Algeria in 1986 Seismic acquisition began in 1990 First discovery (El Merk) in 1993 HBN field discovered in 1994 Ourhoud field discovered in 1994 HBNS field discovered in 1995 First Oil from HBNS 1998 First Oil from Ourhoud in 2002 First Oil from El Merk in 2013 First Visit to Algeria Ourhoud First Oil Contract Negotiations Begin HBN-1 Discovery 1st Discovery - EMK-1 El Merk First Oil HBNS First Oil HBNS-1 Discovery HBNS-1 Discovery Seismic Acquisition Begins HBNS Facility ConstructionBegins PSA Contract Signed Ourhoud Discovery El Merk Facility Construction Begins Exploration Phase Exploration Phase Construction Phase Production Phase Construction Phase

Multi-billion dollar capital investments Groupement Berkine procurement of Algerian goods and services Employment and technical training of local Algerian staff Technology transfer Social investment in training and education 6

7 Hydrocarbon law changes generally positive Finance and importation regulations could be simplified Foreign currency regulations could have adverse effects on investments and new developments Industry would welcome more consultation and input on new regulations and implementation Sonatrach instrumental in navigating through the complexities

8 Industry would be receptive to new opportunities Knowledgeable, educated workforce Large job creation potential Changing skill sets required will create opportunities for the training sector Service sector growth and competition

9 Complex and challenging environment, but investment opportunities can be beneficial for both foreign investors and Algeria Knowledgeable Algerian partner can help navigate through the complexities Anadarko has a successful 25+ year relationship working with Sonatrach and investing in Algeria