Equity Method Investments	3 Months Ended
Equity Method Investments	Mar. 31, 2015
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Equity Method Investments During the three months ended March 31, 2015 and 2014, the Company made contributions of approximately $3.0 million and $5.8 million, respectively, to Constitution Pipeline Company, LLC and $2.1 million and $0.2 million, respectively, to Meade Pipeline Co LLC. There were no material earnings or losses associated with the Company's equity method investments during the three months ended March 31, 2015 and 2014. For further information regarding the Company’s equity method investments, refer to Note 4 of the Notes to the Consolidated Financial Statements in the Form 10-K.

The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group.

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