Anadarko Petroleum Corporation

Anadarko is among the largest independent oil and natural gas exploration and production companies in the world, with approximately 2.3 billion barrels of oil equivalent (BBOE) of proved reserves at year-end 2009. Anadarko's portfolio of assets encompasses premier positions in nearly a dozen major U.S. onshore natural gas resource plays. The company also is the largest independent deepwater producer in the Gulf of Mexico, and has production and/or exploration in Alaska, Algeria, Brazil, China, Indonesia, East and West Africa.

Anadarko has producing and midstream assets ranging from Africa and China to the deepwater Gulf of Mexico, U.S. shales and the Rockies. Anadarko’s operations in North Central Pennsylvania are focused on safely producing the clean-burning natural gas found in the Marcellus Shale formation and the Eagleford Shale is also among the most capital-efficient shale plays in Anadarko’s U.S. onshore portfolio.