Rodney L. Eson

Venoco LLC engages in the acquisition, exploration, and development of oil & natural gas properties. Its principal producing assets are heavily oil-weighted and are located both onshore and offshore in Southern California. The company was founded by Timothy M. Marquez in September 1992 and is headquartered in Denver, CO.

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.

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.

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.