J. Gregory Nutter

Xtreme Drilling Corp. engages in the provision of onshore drilling services in United States. Its activities include design, building, owning, and operation of a fleet of proprietary, high specification drilling rigs. The company was founded by Thomas D. Wood, Randolph M. Charron, and Kyle W. Swingle on May 24, 2005 and is headquartered in Calgary, Canada.

Enventure Global Technology LLC provides solid expandable tubular solutions for the energy industry. It offers drilling, completions, and intervention services. The company was founded in 1998 and 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.