CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net (loss) income	$ (13,417)	$ 52,467
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation, depletion and amortization	17,211	19,241
Accretion of asset retirement obligations	557	1,455
Amortization of deferred financing costs	286	1,320
Recognition of unit-based awards	624	0
Loss on disposal of furniture, fixtures and equipment	0	575
General and administrative expense contributed by the Fund	6,454	0
Unrealized gains on derivative contracts (See Note 4)	(12,082)	(37,699)
Deferred income tax expense	86	0
Bargain purchase gain	0	(1,020)
Equity in earnings of Ute Energy, LLC	0	(708)
Changes in operating assets and liabilities:
Accounts receivable and other assets	(23,032)	(30,890)
Accounts payable and other liabilities	2,110	11,117
Net cash (used in) provided by operating activities	(21,203)	15,858
Cash flows from investing activities:
Additions to oil and gas properties	(7,215)	(11,711)
Acquisition of oil and gas properties	0	(891,856)
Additions of furniture, equipment and other	0	(648)
Proceeds from the sale of oil and gas leases	1,327	0
Net cash used in investing activities	(5,888)	(904,215)
Cash flows from financing activities:
Proceeds from over-allotment (See Note 1)	41,963	0
Distribution to the Fund (See Note 1)	(42,000)	0
Contributions from general partner	715	453,054
Distributions to unitholders	(16,416)	(12,000)
Proceeds from bank borrowings	41,000	574,752
Repayments on bank borrowings	0	(113,534)
Deferred financing costs	(214)	(11,867)
Net cash provided by financing activities	25,048	890,405
(Decrease) increase in cash and cash equivalents	(2,043)	2,048
Cash and cash equivalents at beginning of period	2,195	17,156
Cash and cash equivalents at end of period	$ 152	$ 19,204