Michael E. Little

Pioneer Energy Services LLC. engages in the provision of land-based drilling services and production services to oil and gas exploration and production companies. It operates through Drilling and Production Services segments. The Drilling Services segment offers drilling rig, crews, supplies, and most of the ancillary equipment needed to operate drilling rigs. The Production Services segment offers well servicing,wireline and coiled tubing services to producers primarily in Texas and the Mid-Continent and Rocky Mountain regions, as well as in North Dakota, Louisiana and Mississippi. The company was founded in 1968 and is headquartered in San Antonio, TX.

WEDGE Group Inc (WEDGE Group) is a private equity firm founded in 1970 by Issam M. Fares. The firm is headquartered in Houston, Texas.

Part of Key Energy Services, Inc., Dawson Production Services, Inc. provides work over production services for oil and gas wells. The company is based in San Antonio, TX. Dawson Production Services was acquired by Key Energy Services, Inc. on September 22, 1998 for $194.26 million.

Chevron USA, Inc. provides petroleum refining services and operates gasoline stations. It produces and transports crude oil and natural gas. The company was founded in 1984 and is headquartered in San Ramon, CA.