P. Mark Holmes

Stage 3 Separation LLC, founded in 2009 by Fred Lausen, is a private company based in Houston, TX that specializes in meeting the solids control needs of clients in the oil and gas industry. The company's primary focus is on recycling and reusing fluids and reducing waste transportation and disposal through optimized process performance. Stage 3 Separation has an excellent safety record and offers 24/7 service. The company goes beyond a simple equipment rental business model and works with clients to build efficient project scopes and determine equipment needs. Specialized technologies allow for real-time monitoring and sophisticated data capture, setting Stage 3 apart from others in the industry and guaranteeing clear value-added results for its clients. The company has subsidiaries in the United States.

Part of Patterson-UTI Energy, Inc., TMBR Sharp Drilling, Inc. is a company that contracts domestic onshore drilling of oil and gas wells. The company is based in Midland, TX. The CEO of the company is Thomas C. Brown. TMBR Sharp Drilling was acquired by Patterson-UTI Energy, Inc. on February 12, 2004 for $90 million.

University of Houston System offers higher education degrees and job training or vocational study programs. It offers about 280 undergraduate and graduate degree programs in fields such as business, education, humanities and law. It was founded in 1927 and is headquartered in Houston, TX.

WaterFleet LLC owns and operates mobile water drinking production trailers and sewerage facility. Its products include water rig, reclaimer rig, reliever rig, refresh'r rig, raft, and reliever-mini rig. The firm renders its products to oil and gas, construction, emergency management industries, and interim utility support. The company was founded by Alan R. Pyle and Allison C. Pyle in January 2014 and is headquartered in San Antonio, TX.

Part of Marathon Oil Corp., Texas Oil & Gas Corp. is an oil and gas exploration and American production company. Texas Oil & Gas was acquired by USX Corp. /Old/ on February 28, 1986 for $4,094.40 million.

Encino Energy LLC operates as an oil and gas acquisition and development company. It targets operated and non-operated working interests, minerals, and equity interests in exploration and production. The company was founded by John Hardy Murchison in 2011 and is headquartered in Houston, TX.

Part of GS Holdings Corp., Tiger Oil Corp. sells oil products and provides oil exploration services.

Crescent Petroleum Co. International Ltd. engages in petroleum and natural gas production activities. The firm offers exploration and development of petroleum concessions and the production and sale of crude oil, petroleum products and natural gas. The company was founded by Hamid Jafar in 1971 and is headquartered in Sharjah, the United Arab Emirates.

Buttes Gas & Oil Co. is a Canadian company that specializes in drilling oil and gas wells.

Part of Occidental Petroleum Corp., Placid Oil Co. is a company that deals with fuel oil and oil & gas production. The company is based in Dallas, TX. Placid Oil was acquired by Occidental Petroleum Corp. on December 30, 1994 for $250 million.

South Bay Resources, LLC engages in the provision of oil and gas field exploration services. The company was founded by Steven Tobias in 2003 and is headquartered in Houston, TX.