Devon Energy

Ocean Energy, Inc. is an independent energy company engaged in the exploration, development, production, and acquisition of crude oil and natural gas. North American operations are focused in the shelf and deepwater areas of the Gulf of Mexico, the Rocky Mountains, Permian Basin, Anadarko, East Texas, North Louisiana and Gulf Coast regions. Internationally, Ocean holds a leading position among U.S. independents in West Africa with oil and gas activities in Equatorial Guinea, Angola, Nigeria and Cote d'Ivoire. The company also conducts operations in Egypt, the Russian Republic of Tatarstan, Brazil, and Indonesia.

PennEnergy Resources is an independent oil and gas company that specializes in the acquisition and development of unconventional shale resources, primarily in the Appalachian Basin, specifically the Marcellus region. The company emphasizes the safe and environmentally responsible extraction of these resources, aiming to create value for its investors, stakeholders, employees, and landowners. By focusing on shale resources, PennEnergy Resources seeks to enhance the overall value generated from these unconventional energy sources while maintaining a commitment to safety and environmental stewardship.

Hondo Oil & Gas Co is the most of the domestic oil and gas.