Trent W. Green

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.

AAPG, Inc. is the American Association of Petroleum Geologists, a professional geological society that works to advance the science of geology, particularly in relation to petroleum, natural gas, other subsurface fluids, and mineral resources. The organization promotes the technology of exploring for, finding, and producing these materials in an economically and environmentally sound manner, while also advancing the professional well-being of its members. However, almost one-third of its members live outside the United States. AAPG was founded in 1917 and is headquartered in an unspecified location.

Part of Matador Resources Co., Harvey E. Yates Co. explores and distributes oil and gas. The company is based in Roswell, NM. Harvey E. Yates was acquired by Matador Resources Co. from HEYCO Energy Group, Inc. on March 02, 2015 for $93.08 million.

Pinnacle Technologies, Inc. provides engineering, oil fracturing, and other oil and gas related services. It offers surface and downhole micro seismic monitoring, as well as surface and downhole micro deformation analysis. The company was founded in 1992 and is headquartered in Houston, TX.

Bopco LP provides heavy construction services. The private company is based in Fort Worth, TX.

HEYCO Energy Group, Inc. explores and distributes oil and gas. It focuses on geology, geophysics, reservoir engineering, land management, international negotiation, drilling and production, and operations management; oil and gas reserves, and mineral leases or licenses in various project areas in the Permian Basin and East Texas in the U.S., as well as in Spain, the United Kingdom and Morocco. The company was founded in 2001 and is headquartered in Roswell, NM.