Jerry W. Box

Magnum Hunter Resources, Inc. provides oil exploration and drilling services. The company is headquartered in Irving, TX

Cimarex Energy Co. is an independent oil and gas exploration and production company. Its activities include drilling, completing and operating wells. It operates through the following areas: Permian Basin, Mid-Continent, and Others in Oklahoma, Texas and New Mexico. The company was founded by F. H. Merelli in February 2002 and is headquartered in Denver, CO.

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 Dallas Petroleum Club operates petroleum clubs. The private company is based in Dallas, TX.

ETC Sunoco Holdings LLC engages in refining, marketing, and distributing of petroleum and petrochemical products. Its products include race fuels, related apparel, hats, collectibles, and limited branded merchandise. The company was founded by Joseph Newton Pew and Edward O. Emerson on March 27, 1886 and is headquartered in Newton Square, PA.