Plains Exploration & Production Company (PXP) is an independent energy company engaged in the upstream oil and gas business. The upstream business acquires, develops, explores for and produces oil and gas. The Company owns oil and gas properties with operations in Onshore California, Offshore California, the Gulf of Mexico, the Gulf Coast Region and the Rocky Mountains. The Company operates Los Angeles Basin, San Joaquin Basin in California. The Company�s offshore California projects include Point Arguello and Point Pedernales. The Company�s Gulf of Mexico portfolio includes the Holstein, Horn Mountain, Marlin, Dorado and King Fields, the Ram Powell Field and the Diana and Hoover Fields. The Company�s Gulf coast region operates two projects namely Eagle Ford Shale and Haynesville Shale. The Company operates two projects in the Rocky mountain region, namely Wind River Basin and Big Horn Basin.