Anadarko Petroleum Corporation is an independent exploration and production company. The Company is engaged in the exploration, development, production, and marketing of natural gas, oil, condensate, natural gas liquids (NGLs), and anticipated production of liquefied natural gas (LNG). Its assets include United States onshore resource plays in the Rocky Mountains area, the southern United States, the Appalachian basin, and Alaska. The Company has three segments: Oil and gas exploration and production, Midstream and Marketing. Oil and gas exploration and production segment explores for and produces natural gas, oil, condensate, and NGLs, and plans for the development and operation of its LNG project. Midstream segment engages in gathering, processing, treating, and transporting oil, natural-gas, and NGLs production. Marketing segment sells oil, natural-gas, and NGLs production. The Company is also an independent producer in the deepwater Gulf of Mexico.