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Crosstex Energy, L.P. is a midstream energy company through its subsidiary, Crosstex Energy Services, L.P.
Principle Power is focused on the deep-water offshore wind energy market. Its product, the WindFloat, is a floating foundation for wind turbines that enables siting independent of water depth, thus exploiting the world's highest capacity wind resources.
United Refining Company is one of the leading providers in Energy & Utilities. It is based in Warren, PA. To find more information about United Refining Company, please visit www.urc.com.
OpTerra Energy Group is a Westminster, CO-based company in the Energy and Utilities sector.
Natural Gas Services Group, Inc. (Natural Gas Services Group) is a provider of small-to-medium horsepower compression equipment to the natural gas industry. The Company focuses primarily on the non-conventional natural gas production business in the