Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income (loss)	$ (1,715)	$ 81
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	29,608	23,641
Long-lived asset impairment	305	231
Amortization of debt issuance cost	638	471
Amortization of fair value of acquired interest rate swaps		74
Amortization of payments to terminate interest rate swaps	5,131
Unit based compensation expense	517	448
Provision for doubtful accounts	29	32
Gain on sale of compression equipment	(327)	(417)
Changes in assets and liabilities:
Accounts receivable, trade	(3,231)	(192)
Accounts payable, trade	(153)	5
Other liabilities	1,318	1,648
Net cash provided by operating activities	32,120	26,022
Cash flows from investing activities:
Capital expenditures	(23,820)	(17,541)
Payment to Exterran Holdings for a portion of the June 2011 Contract Operations Acquisition	(62,217)
Proceeds from the sale of compression equipment	1,268	793
Increase in restricted cash		(540)
Decrease in amounts due from affiliates, net	5,329
Net cash used in investing activities	(79,440)	(17,288)
Cash flows from financing activities:
Borrowings under long-term debt	474,500	7,000
Repayments under long-term debt	(543,434)	(9,000)
Distributions to unitholders	(32,233)	(23,169)
Net proceeds from issuance of common units	127,672
Net proceeds from sale of general partner units	1,316
Debt issuance costs	(980)
Purchase of treasury units	(281)	(166)
Capital contribution from limited partners and general partner	19,329	9,171
Increase in amounts due to affiliates, net	1,613	7,291
Net cash provided by (used in) financing activities	47,502	(8,873)
Net increase (decrease) in cash and cash equivalents	182	(139)
Cash and cash equivalents at beginning of period	50	203
Cash and cash equivalents at end of period	232	64
Supplemental disclosure of cash flow information:
Non-cash capital contribution from limited and general partner	594	198
Non-cash capital contribution for contract operations equipment acquired/exchanged, net	193,069	2,602
Intangible assets allocated in acquisition	6,400
Debt assumed in acquisition	159,434
Non-cash capital distribution due to the June 2011 Contract Operations Acquisition	23,888
General partner units issued to general partner due to the June 2011 Contract Operations Acquisition	767
Partners' Capital Common Units
Cash flows from operating activities:
Net income (loss)	(2,537)	(400)
Supplemental disclosure of cash flow information:
Non-cash capital distribution due to the June 2011 Contract Operations Acquisition	$ 24,655