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SEMCO Energy, Inc. is engaged in natural gas distribution operations in Michigan and Alaska. The Company's Michigan operation is referred to as SEMCO Gas, while the Alaska operation is called ENSTAR. SEMCO Gas is a division of the Company. The ENSTAR
Trendwell Energy Corp is a Greenville, MI-based company in the Energy and Utilities sector.
Miniveil Air Systems is a Port Hope, ON-based company in the Energy and Utilities sector.
Chesapeake Energy is an oil and natural gas company located in Oklahoma City, United States. Chesapeake Energy is the second-largest natural gas producer in the United States. Its operations are focused on discovering and developing unconventional natural gas and oil fields onshore in the U.S. Chesapeake owns leading positions in the Eagle Ford, Utica, Granite Wash, Cleveland, Tonkawa, Mississippi Lime and Niobrara unconventional liquids plays and in the Marcellus, Haynesville/Bossier and Barnett unconventional natural gas shale plays. The company also owns substantial marketing and oilfield services businesses through its subsidiaries Chesapeake Energy Marketing, Inc. and Chesapeake Oilfield Services, L.L.C.
US Power Generating Company is one of the leading companies in the Energy and Utilities sector.