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Colorado Interstate Gas Company is a Colorado Springs, CO-based company in the Energy and Utilities sector.
Applied Physics Systems is a Sunnyvale, CA-based company in the Energy and Utilities sector.
3B Scientific Corporation is a Libertyville, IL-based company in the Energy and Utilities sector.
Alden Resources is a Corbin, KY-based company in the Energy and Utilities sector.
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