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16. TEXAS SOUTHEASTERN GAS MARKETING COMPANY	3 Months Ended
16. TEXAS SOUTHEASTERN GAS MARKETING COMPANY	Mar. 31, 2016
Texas Southeastern Gas Marketing Company
16. TEXAS SOUTHEASTERN GAS MARKETING COMPANY	As of January 1, 2016, the Company decided to discontinue the operations of Texas Southeastern Gas Marketing Company due to the limited volumes of natural gas that it marketed, as well as the costs associated with accounting for the entity. Texas Southeastern Gas Marketing Company is not a significant subsidiary, and this discontinuation of operations does not represent a strategic shift in business for the Company.