John Michael Rauh

Pioneer Energy Services LLC. engages in the provision of land-based drilling services and production services to oil and gas exploration and production companies. It operates through Drilling and Production Services segments. The Drilling Services segment offers drilling rig, crews, supplies, and most of the ancillary equipment needed to operate drilling rigs. The Production Services segment offers well servicing,wireline and coiled tubing services to producers primarily in Texas and the Mid-Continent and Rocky Mountain regions, as well as in North Dakota, Louisiana and Mississippi. The company was founded in 1968 and is headquartered in San Antonio, TX.

Kerr-McGee Corp. is an energy and inorganic chemical. It subsidiaries, joint ventures and other affiliates have operations throughout the world. The company core business, which include exploration, production of oil and gas resources. It was founded in 1929 and is headquartered Oklahoma City, Ok

Kerr-McGee Holdings, Inc. manufactures basic inorganic & organic chemicals. The company was founded in 2000 and is headquartered in Oklahoma City, OK.

Northwestern Oklahoma State University Foundation operates as a foundation. The company was founded in 1959 and is headquartered in Alva, OK.

Tronox, Inc. manufactures and produces titanium dioxide. It offers mineral sands, titanium dioxide pigments, and electrolytic chemicals. The company was founded on June 6, 2005 and is headquartered in Oklahoma City, OK.