John E. Minton

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

Apache Corp. operates as an energy company, which engages in the exploration, development, and production of natural gas, crude oil, and natural gas liquids. The company was founded by Truman Anderson, Raymond Plank, and Charles Arnao on December 6, 1954 and is headquartered in Houston, TX.

Part of Chevron Corp., Union Oil Company of California, Inc. is a company that explores and markets petrol. The company is based in El Segundo, CA. Union Oil Company of California was acquired by Hilcorp Energy Co. from Chevron Corp. on January 01, 2012.

Part of Arco Alaska, Inc., Arco Oil & Gas Co. is a company that produces and sells oil and gas. The company is based in Plano, TX.

Lariat Petroleum, Inc. is based in Tulsa, OK. The company is based in Tulsa, OK. Lariat Petroleum, Inc. was acquired by Ovintiv Exploration, Inc., part of Ovintiv, Inc. from February 14, 2019 on January 23, 2001 for $332.93 million. The company was founded by Randy A. Foutch.

Ovintiv Exploration, Inc. was an oil and gas company, which was engaged in the exploration, development, and production of crude oil, natural gas, and natural gas liquids. The company was founded by Joe B. Foster in 1988 and was headquartered in Austin, 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.