Ken R. LeSuer

Horizon Offshore, Inc. provides marine construction services for the offshore oil and gas and other energy related industries in the U.S. Gulf of Mexico, Latin America, Southeast Asia, West Africa and the Mediterranean. The company was founded in 1995 and is headquartered in Houston, TX.

Particle Drilling Technologies, Inc. is an oilfield service and technology company that develops advanced drilling technology. It commercializes patented particle impact drilling system, which is designed to provide a radical increase in penetration rates for drilling oil and gas wells, particularly through deep hard and abrasive zones or other difficult to drill formations. The company is headquartered in Houston, TX.

Halliburton Energy Services, Inc. provides oilfield services. It offers technical products and services for petroleum, natural gas exploration and production. The company is headquartered in Houston, TX.

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.