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Chaparral Energy, Inc. (Chaparral) is an independent oil and natural gas production and exploitation company. Its areas of operation include the Mid-Continent, the Permian Basin, Gulf Coast, Ark-La-Tex, North Texas and the Rocky Mountains. As of December
Thorn Creek Basin is a Chicago Heights, IL-based company in the Energy & Utilities sector.
Kaapa Ethanol is a Minden, NE-based company in the Energy and Utilities sector.
Great Lakes Bioenergy Research Center is a Madison, WI-based company in the Energy and Utilities sector.