Thomas E. Schmidt

Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada.

The Independent Petroleum Association of America manufactures oil and natural gas. The non-profit company is based in Washington. Barry Russell has been the CEO of the American company since 1980.

American Petroleum Institute (API) is the only national trade association that represents all aspects of America's oil and natural gas industry. Its more than 400 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry. They are producers, refiners, suppliers, pipeline operators and marine transporters, as well as service and supply companies that support all segments of the industry.

Texas Alliance of Energy Producers operates as a state-wide oil and gas association in Texas. The company was founded in 1930 and is headquartered in Wichita Falls, TX.

Louisiana Oil & Gas Association provides exploration, production and oilfield services. The company was founded in 1992 and is headquartered in Baton Rouge, LA.