David McManus

Pioneer Natural Resources Co. operates as an independent oil and gas exploration and production company. The firm engages in hydrocarbon exploration in the Cline Shale. It focuses on the operation of the Permian Basin, Eagle Ford Shale, Rockies, and West Panhandle projects. The company was founded by Scott Douglas Sheffield on April 2, 1997, and is headquartered in Irving, TX.

Caza Oil & Gas, Inc. engages in the acquisition, exploration, development, and production of oil and natural gas reserves. The company was founded in 2006 and is headquartered in The Woodlands, TX.

Cape Intermediate Holdings Ltd. is an investment holding company, which engages in interest in non-mechanical industrial services. It also offers access, insulation, specialist coatings and fireproofing, engineering, oil, liquids and gas bulk storage, refractory linings, design and engineering, asset integrity, and environmental services. The company was founded in 1893 and is headquartered in Slough, the United Kingdom.

Verus Petroleum Holding Ltd. engages in exploring of oil properties. The company founded in 2005 and is headquartered in Aberdeen, the United Kingdom.

Part of Costain Group Plc, Costain Ltd. engages in heavy construction activities. The private company is based in Maidenhead, UK. Founded in 1958.

Caza Petroleum, Inc. develops and explores hydrocarbons. The firm operates as an energy company across different states in the United States. The company is headquartered in Midland, TX.