Rapid City, SD-based Black Hills Corp.‘s two utility subsidiaries have filed with Wyoming regulators for authorization to build a natural gas-fired power plant in Cheyenne that would include both a peaking and combined-cycle baseload unit. Black Hills Power and Cheyenne Light, Fuel & Power asked the Wyoming Public Service Commission (PSC) for permission to build the $237 million complex to provide 37 MW of simple-cycle peaking capacity and a separate 95 MW of combined-cycle capacity. Cheyenne Light would own and operate the peaking unit, and the two utilities would jointly own and operate the baseload facility with Black Hills Power owning the majority (55 MW).

CenterPoint Energy Inc. subsidiary CenterPoint Energy Services Inc. has acquired Denver-based natural gas marketer Asgard Energy LLC. Terms of the deal were not disclosed. Asgard supplies natural gas to commercial, industrial, agricultural and residential customers in Colorado, Kansas, Nebraska, Wyoming and West Virginia. The acquisition, which is effective as of Nov. 1, is part of CenterPoint’s strategy to expand into the Rockies market and will allow the Houston-based company to extend into residential markets. CenterPoint said it will retain all Asgard employees and provide service to its new customers from a Denver office. CenterPoint had total sales transactions of 1.38 Bcf/d in 2Q2011, a 2% decline from 1.41 Bcf/d in 2Q2010, according to NGI‘s 2Q2011 Top North American Gas Marketers Ranking.

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