J. Anthony Gallegos

Sidewinder Drilling LLC engages in the operation of land drilling rigs. It provides contract drilling services to exploration and production industries. The company was founded by Jon C. Cole in April 2011 and is headquartered in Houston, TX.

Scorpion Offshore Ltd. owns and operates a fleet of drilling rigs for the offshore oil and gas industry. The company was founded on April 22, 2005 and is headquartered in Hamilton, Bermuda.

Atwood Oceanics, Inc. was a global offshore drilling contractor, which was engaged in the drilling and completion of exploratory and developmental oil and gas wells. It was own mobile offshore drilling units and is constructing drill-ships, and jack-ups. The company was 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.

American Petroleum Institute (API) is the only national trade association that represents all aspects of America's oil and natural gas industry. Its more than 400 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry. They are producers, refiners, suppliers, pipeline operators and marine transporters, as well as service and supply companies that support all segments of the industry.

Transocean, Inc. provides offshore contract drilling services for oil and gas wells. The company also provides integrated services. It operates through two segments, Transocean Drilling and TODCO. The Transocean Drilling segment consists of floaters, jackups and other rigs used in support of offshore drilling activities and offshore support services. The TODCO segment consisted of its interest in TODCO, which conducts jackup, drilling barge, land rig, submersible and other operations in the United States. Transocean, Inc. is based in Houston, Texas.

ENSCO International, Inc. engages in the provision of contract drilling and marine transport services. The company was founded in 1987 and is headquartered in Houston, TX.