Phillip Gobe

Atlantic Richfield Co. provides oil and gas extraction and production services . The firm's exploration and production operations are focused primarily in the Gulf of Mexico and the midcontinent in the United States, the United Kingdom North Sea, Indonesia, China and Algeria. The company was incorporated on April 15, 1985 and is headquartered in Warrenville, IL.

Nuevo Energy Co. was engaged in the acquisition, exploitation, exploration, development and production of crude oil and natural gas. The company's core areas in the US were onshore and offshore California and West Texas. The firm was located in Houston, TX.

Vastar Resources, Inc. is one of the largest independent oil and natural gas exploration and production companies in the United States. The company is active in approximately 80 fields in some of the nation's most prolific producing areas, including the Gulf of Mexico, the Gulf Coast, the Oklahoma/Arklatex and the Rockies/Hugoton regions. In addition, the company's drilling rigs are exploring for new reserves both onshore and in the promising shelf and deepwater Gulf of Mexico drilling plays, the latter the site of rising industry activity and excitement.

Pioneer Natural Resources Co. operates as an independent oil and gas exploration and production company. The firm engages in hydrocarbon exploration in the Cline Shale. It focuses on the operation of the Permian Basin, Eagle Ford Shale, Rockies, and West Panhandle projects. The company was founded by Scott Douglas Sheffield on April 2, 1997, and is headquartered in Irving, TX.

EPL Oil & Gas, Inc. operated as an oil and natural gas exploration and production company. It was focused on acquiring and developing assets on state and federal waters offshore Louisiana in the United States Gulf of Mexico shelf region. The company was founded on January 29, 1998 and it was headquartered in Houston, TX.

Pioneer Southwest Energy Partners LP was a master limited partnership, which owns and acquires oil and gas assets. The company's assets consist of non-operated working interests in producing wells in the Spraberry field in the Permian Basin of West Texas. Its area of operations consisted of onshore Texas and eight counties in the southeast region of New Mexico. Pioneer Southwest Energy Partners was founded in June 2007 and was headquartered in Irving, TX.

Scientific Drilling International, Inc. provides directional drilling and wellbore navigation, surveying and logging services. It also provides survey and steering, measurement and logging while drilling, production logging, ranging, directional drilling, wellbore navigation, and surveying and logging services. The company was founded in 1969 and is headquartered in Woodlands, TX.