James Trimble

Tri-Union Development Corp. provides oil and gas field exploration services. It acquires, develops, explores and produces oil and natural gas properties in core areas. The company is headquartered in Metairie, LA.

PDC 2002-B LP produces and sells crude oil, natural gas and natural gas liquids. It owns an undivided working interest in wells located in Colorado. The firm is managed by its managing general partner PDC Energy, Inc. The company was founded in 2002 and is headquartered in Denver, CO.

PDC 2002-C LP engages in the exploration and development of crude oil and natural gas properties. It owns an undivided working interest in wells located in Colorado. The company was founded in 2002 and is headquartered in Denver, CO.

Elysium Energy LLC engages in the exploration and development of oil and gas properties. The company is headquartered in Dallas, TX.

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.

TexCal Energy LLC provides oil and gas exploration services. TexCal Energy was acquired by Venoco LLC on March 31, 2006 for $456 million.

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.

The Independent Oil & Gas Association of West Virginia, Inc. was founded in 1959 and engages in the extraction and production of natural gas and oil. The non-profit company is based in Charleston, WV.

C&J Energy Services Ltd. engages in the provision of well construction, well completions, and well services to the oil and gas industry. It operates through the following segments: Completion Services; Well Support Services; and Other Services. The Completion Services segment includes the hydraulic fracturing services, cased-hole wire line services, coiled tubing services and other well stimulation services of both Legacy C&J and the C&P business. The Well Support Services segment includes services acquired with the C&P business, specifically including rig services, fluid management services and other special well site services. The Other Services segment includes services acquired with the C&P business, specifically including rig services, fluid management services and other special well site services. The company was founded on 1997 and is headquartered in Hamilton, Bermuda.

Crestone Peak Resources LLC operates as an independent energy company focusing on the acquisition, exploration, development, and production of oil and gas reserves in the Rocky Mountain Region. The company was founded on November 16, 2015 and is headquartered in Denver, CO.

Tanda Resources LLC provides oil and gas exploration services. The private company is based in Houston, TX. The company was founded by Sylvia K. Barnes. Sylvia K. Barnes has been the CEO since incorporation.