Unit Transactions	3 Months Ended
Mar. 31, 2013
Unit Transactions
Unit Transactions	10. Unit Transactions In March 2013, we completed the March 2013 Contract Operations Acquisition from Exterran Holdings. In connection with this acquisition, we issued approximately 7.1 million common units and approximately 145,000 general partner units to Exterran Holdings’ wholly-owned subsidiaries. In March 2012, we sold, pursuant to a public underwritten offering, 4,965,000 common units representing limited partner interests in us, including 465,000 common units sold pursuant to an over-allotment option. The net proceeds from this offering of $114.6 million were used to repay borrowings outstanding under the revolving credit facility. In connection with this sale and as permitted under our partnership agreement, we issued approximately 101,000 general partner units to our general partner for it to maintain its approximate 2.0% general partner interest in us. Our general partner made a capital contribution to us in the amount of $2.4 million as consideration for such units. As of March 31, 2013, after giving effect to the units issued in connection with the March 2013 Contract Operations Acquisition, Exterran Holdings owned 19,618,918 common units and 1,003,227 general partner units, collectively representing a 41% interest in us.

10. Unit Transactions

In March 2013, we completed the March 2013 Contract Operations Acquisition from Exterran Holdings. In connection with this acquisition, we issued approximately 7.1 million common units and approximately 145,000 general partner units to Exterran Holdings’ wholly-owned subsidiaries.

In March 2012, we sold, pursuant to a public underwritten offering, 4,965,000 common units representing limited partner interests in us, including 465,000 common units sold pursuant to an over-allotment option. The net proceeds from this offering of $114.6 million were used to repay borrowings outstanding under the revolving credit facility. In connection with this sale and as permitted under our partnership agreement, we issued approximately 101,000 general partner units to our general partner for it to maintain its approximate 2.0% general partner interest in us. Our general partner made a capital contribution to us in the amount of $2.4 million as consideration for such units.

As of March 31, 2013, after giving effect to the units issued in connection with the March 2013 Contract Operations Acquisition, Exterran Holdings owned 19,618,918 common units and 1,003,227 general partner units, collectively representing a 41% interest in us.