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Clayton Williams Energy, Inc. (CWEI) is an independent oil and gas company engaged in the exploration for and production of oil and natural gas primarily in Texas, Louisiana and New Mexico. During the year ended December 31, 2008, the estimated proved
AER Worldwide is one of the leading providers in Energy and Utilities. It is based in Fremont, CA. To find more information about AER Worldwide, please visit www.aerworldwide.com.
Barnes Oil and Gas is one of the leading providers in Energy and Utilities. It is based in Plano, TX. To find more information about Barnes Oil and Gas, please visit www.barnesoilandgas.com.
ESN Northwest is a Lacey, WA-based company in the Energy and Utilities sector.
Master Disposal Co is a El Monte, CA-based company in the Energy and Utilities sector.