Matthew David Gentry

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.

The Society of Exploration Geophysicists operates as an association of exploration geophysicists. The non-profit company is based in Tulsa, OK and has subsidiaries in the United States.

Monadnock Resources LLC operates as a oil and gas company. It offers applications for modern drilling and completion technologies. The company is headquartered in Addison, TX.

Shell Exploration & Production Co. engages in the oil and gas exploration services. It develops oil and natural gas properties in the U.S. primarily in the Gulf of Mexico and in South Texas. The company was founded in 1995 and is headquartered in Houston, TX.

Camden Resources LLC explores produces and markets oil and gas products. It also develops oil and gas reserves. The company was founded in 2000 and is headquartered in Blanchard, OK.