Apache Corp. explores, develops and produces natural gas, crude oil and natural gas liquids. The company has exploration and production interests in six countries: the U.S., Canada, Egypt, the U. K. in the North Sea and Argentina. The North American asset base comprises operations in the Permian Basin, the Anadarko basin in western Oklahoma and the Texas Panhandle, Gulf Coast onshore and offshore areas of the U.S., and operations in Western Canada. . It is focused on oil projects located primarily in Alberta and Saskatchewan. The company's operations in Egypt are conducted pursuant to production-sharing agreements, in various separate concessions. The company was founded by Raymond Plank, Charles Arnao and Truman Anderson on December 6, 1954 and is headquartered in Houston, TX.