Jerry L. Winchester

Boots & Coots International Well Control, Inc. provides a suite of integrated pressure control and related services to onshore and offshore oil and gas exploration and development companies, primarily in North America, Asia, South America, North Africa, West Africa, and the Middle East. The company was founded in 1978 and is headquartered in Houston, 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.

Halliburton Energy Services, Inc. provides oilfield services. It offers technical products and services for petroleum, natural gas exploration and production. The company is headquartered in Houston, TX.

Chesapeake Oilfield Services, Inc. is a diversified oilfield services company whose operating subsidiaries provide services and equipment primarily to Chesapeake Energy Corporation and its working interest partners, as well as other customers in the upstream oil and natural gas industry in the United States. Its services include contract drilling, hydraulic fracturing, oilfield rentals, rig relocation, fluid transportation, disposal, and manufacturing of natural gas compressor packages. The company was founded on April 10, 2012 and is headquartered in Oklahoma City, OK.

Part of Halliburton Co., Boots & Coots International Well Control, Inc. provides well control and firefighting services. The company is based in Houston, TX.

Seventy Seven Energy, Inc. engages in the provision of upstream services, including drilling, pressure pumping, trucking, oilfield rental tools, rig relocation, and water transport and disposal. It operates through the following segments: Drilling, Hydraulic Fracturing, and Oilfield Rentals. The Drilling segment, through the Nomac Drilling, L.L.C., provides land drilling services for oil and natural gas exploration and production activities. The Hydraulic Fracturing segment, through the Performance Technologies, L.L.C., offers high-pressure hydraulic fracturing services and other well stimulation services. The Oilfield Rentals segment, through the Great Plains Oilfield Rental, L.L.C., supplies premium rental tools and specialized services for land-based oil and natural gas drilling, completion, and work over activities. The company was founded on September 9, 2011 and is headquartered in Oklahoma City, OK.

Part of Chesapeake Energy Corp., COS Holdings LLC is an investment holding company. The company is based in Oklahoma City, OK. Jerry L. Winchester has been the CEO of the company since 2011.

National Cowboy & Western Heritage Museum operates as a museum. It focuses on the American cowboy, rodeos, native American culture, Victorian firearms, frontier military, and western performers. The company was founded in 1955 and is headquartered in Oklahoma City, OK.