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Midsun Group Inc is a Southington, CT-based company in the Energy and Utilities sector.
D T E Coal Services is a Ann Arbor, MI-based company in the Energy and Utilities sector.
AIDG is a Weston, MA-based company in the Energy and Utilities sector.
SemGroup Corporation is a Tulsa, OK-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