Condensed Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Successor	Mar. 31, 2013 Predecessor
Cash flow from operating activities
Net income	$ 79,698	$ 32,434
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation, depletion and amortization	68,631	68,478
Stock-based compensation expense	0	3,195
Amortization and write-off of deferred financing fees	(3,478)	1,709
Change in book overdraft	0	(232)
Deferred income taxes	(31)	19,648
Other, net	0	5,274
Derivative activities
Total (gains) losses	(3,465)	737
Cash settlements	(2,655)	2,409
Changes in assets and liabilities
Increase in accounts receivable – trade, net	(15,373)	(9,507)
Increase in other assets	(1,040)	(3,057)
Decrease in accounts payable and accrued expenses	(21,127)	(22,866)
Decrease in other liabilities	(6,330)	(6,524)
Net cash provided by operating activities	94,830	91,698
Cash flow from investing activities
Property acquisitions	0	(2,897)
Development of oil and natural gas properties	(134,750)	(173,849)
Purchases of other property and equipment	(1,833)	(2,613)
Proceeds from sale of properties and equipment and other	0	480
Net cash used in investing activities	(136,583)	(178,879)
Cash flow from financing activities
Proceeds from borrowings	0	299,200
Repayments of debt	(1,188)	(208,500)
Dividends paid	0	(4,400)
Financing fees and other, net	(2,581)	(112)
Proceeds from stock option exercises	0	65
Excess tax benefit from stock-based compensation	0	721
Net cash provided by (used in) financing activities	(3,769)	86,974
Net decrease in cash and cash equivalents	(45,522)	(207)
Cash and cash equivalents
Beginning	51,041	312
Ending	$ 5,519	$ 105