Donald D. Wolf

Ute Energy LLC manages exploration and development activities. The company was founded in May 2005 and is headquartered in Denver, CO.

Mak-J Energy Partners Ltd. provides oil and gas exploration services. The private company is based in Denver, CO.

QR Energy LP engages in the acquisition, exploitation, development and production of oil and natural gas properties. Its assets are located in the Permian, Ark-La-Tex, Mid-Continent, Gulf Coast and Michigan regions. The company was founded on September 20, 2010 and is headquartered in Los Angeles, CA.

Western Energy Alliance is a nonprofit trade association based in Denver, CO, representing 300 companies engaged in environmentally responsible exploration and production of oil and natural gas in the west. The company believes in the principle of multiple use of non-park, non-wilderness public lands and has consistently stressed the importance of public lands advocacy over many years. The company is an advocacy organization promoting the best practices in the industry.

Part of Aspect Energy LLC (Colorado), Aspect Resources LLC explores for and produces oil and gas. The company is based in Denver, CO.

Quantum Resource Management Engages in oil and gas exploration. The company was founded in June 2006 and is headquartered in Denver, CO.

Part of Maverick Natural Resources LLC, QRE GP LLC provides investment services. The company is based in Houston, TX. QRE GP was acquired by QR Energy LP on March 03, 2014.

QA Global GP LLC provides investment advisory services. The private company is based in Houston, TX. The CEO of the company is Alan L. Smith.

Laredo Petroleum, Inc. is an exploration and production company with headquarters in Tulsa, Oklahoma. Laredo's strategy is to make strategic acquisitions and participate in drilling joint ventures having upside potential in the targeted area of the Mid-Continent and Permian Basin Regions of the United States. The company was founded in May 2007 and is headquartered in Tulsa, OK

Sun Oil Co., Inc. is a Canadian company that produces, transports, and stores oil. The private company also refines, ship, and market petroleum products.

Andeavor engages in the refining and marketing of petroleum products. It operates through the following segments: Refining, Logistics, and Marketing. The Refining segment buys and refines crude oil and other feed stocks into transportation fuels, such as gasoline and gasoline blend stocks, jet fuel and diesel fuel, as well as other products, including heavy fuel oils, liquefied petroleum gas and petroleum coke for sale in bulk markets to a wide variety of customers within Andeavor's markets. The logistics segment includes crude oil and natural gas gathering assets, natural gas and natural gas liquid processing assets, and crude oil and refined products terminalling, transportation and storage assets acquired from Andeavor and third parties. The Marketing segment sells transportation fuels through branded and unbranded channels. Its brand portfolio includes ARCO, Shell, Exxon, Mobil, USA Gasoline, Rebel, and Tesoro. The company was founded by West V. Robert, Jr. in 1964 and is headquartered in San Antonio, TX.

Maverick Natural Resources LLC engages in the business of acquisition, exploitation, and development of oil and gas properties. Its assets consist of producing and non-producing crude oil, and natural gas reserves. The company was founded on March 23, 2006 and is headquartered in Houston, TX.

Part of Maverick Natural Resources LLC, BreitBurn GP LLC focuses on the acquisition, exploitation and development of oil and gas properties. The company is based in Los Angeles, CA. The company was founded by Randall Hart Breitenbach, Halbert S. Washburn. Halbert S. Washburn has been the CEO since incorporation.

Enduring Resources II LLC operates as acquisition and exploitation focused oil and gas company. It focuses on large resource potential, geographies, development concepts during delineation, advancing technology, vertical integration and working relations with landowners and service providers. The company was founded in 2011 and is headquartered in Denver, CO.

Aspect Holdings LLC provides investments in oil and gas exploration companies. It engages in exploration and production activities in a number of countries, including the United States, Hungary, and the Kurdistan Region of Iraq. The company was founded by Alex Cranberg in 1993 and is headquartered Denver, CO.

Aspect Energy LLC operates as an exploration and energy investment company. The firm is engaged in oil and gas exploration and development efforts. The company was founded in 1992 and is headquartered in Denver, CO.