Subsequent Events

12 Months Ended

Dec. 31, 2011

Subsequent Events

Subsequent Events

29. Subsequent Events

• Utica Shale Joint Venture

        Effective January 1, 2012, the Partnership and EMG Utica entered into the Utica Joint Venture to develop significant natural gas processing and NGL fractionation, transportation and marketing infrastructure in the Utica Shale in eastern Ohio beginning in 2012. Under the terms of the Utica Joint Venture, EMG will fund a majority of the initial capital expenditures required to develop the Utica midstream infrastructure. The Partnership has a 60% ownership in the Utica Joint Venture. A wholly-owned subsidiary of the Partnership serves as the operator of MarkWest Utica EMG and provides field operating and general and administrative services. A portion of the fee for providing these services is fixed.