Apache Corporation, a Delaware corporation formed in 1954, is an independent energy company that explores for, develops and produces natural gas, crude oil and natural gas liquids. In North America, Apache's exploration and production interests are focused on the Gulf of Mexico, the Anadarko Basin, the Permian Basin, the Gulf Coast and the Western Sedimentary Basin of Canada. Outside of North America, Apache has exploration and production interests offshore Western Australia and in Egypt and exploration interests in Poland and offshore The People's Republic of China.

Apache common stock, par value $1.25 per share, has been listed on the New York Stock Exchange since 1969, and on the Chicago Stock Exchange since 1960.

Apache holds interests in many of its U.S., Canadian and international properties through operating subsidiaries, such as Apache Canada Ltd., DEK Energy Company, Apache Energy Limited, Apache International, Inc., and Apache Overseas, Inc.