Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 16, 2013
Successor
Cash flow from operating activities:
Net income (loss)	$ (19,973)	$ (1,015,177)	$ 22,596
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	10,845	251,371	302,353
Impairment of long-lived assets	0	853,810	253,362
Stock-based compensation expense	0	0	0
Gain on extinguishment of debt	0	(11,209)	0
Amortization and write-off of deferred financing fees	(615)	3,750	(4,913)
Change in book overdraft	0	0	0
(Gains) losses on sale of assets and other, net	0	(961)	111,374
Deferred income taxes	0	(68)	69
Derivatives activities:
Total (gains) losses	5,049	(36,068)	(78,784)
Cash settlements	0	68,770	6,738
Cash settlements on canceled derivatives	0	0	12,281
Changes in assets and liabilities:
(Increase) decrease in accounts receivable – trade, net	71,434	59,941	16,483
(Increase) decrease in other assets	10,613	18,724	(15,949)
Increase (decrease) in accounts payable and accrued expenses	(8,078)	(62,755)	(3,719)
Increase (decrease) in other liabilities	(12,597)	(7,610)	(38,411)
Net cash provided by operating activities	56,678	122,518	583,480
Cash flow from investing activities:
Property acquisitions	0	0	0
Development of oil and natural gas properties	(17,478)	(32,633)	(512,419)
Purchases of other property and equipment	0	(17,741)	(11,470)
Settlement of advance to affiliate	0	129,217	0
Proceeds from sale of properties and equipment and other	0	22,525	7,667
Net cash provided by (used in) investing activities	(17,478)	101,368	(516,222)
Cash flow from financing activities:
Proceeds from borrowings	0	0	0
Repayments of debt	0	(355,418)	(206,124)
Dividends paid	(4,272)	0	0
Financing fees and other, net	0	(1,363)	(11,510)
Proceeds from stock option exercises	0	0	0
Capital contributions from affiliate	0	221,278	220,000
Distributions to affiliate	(435,000)	(88,946)	(119,079)
Excess tax benefit from stock-based compensation	0	0	0
Net cash provided by (used in) financing activities	(439,272)	(224,449)	(116,713)
Net increase (decrease) in cash and cash equivalents	(400,072)	(563)	(49,455)
Cash and cash equivalents:
Beginning	451,113	1,586	51,041
Ending	51,041	$ 1,023	$ 1,586	$ 451,113
Predecessor
Cash flow from operating activities:
Net income (loss)				93,447
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization				279,757
Impairment of long-lived assets				0
Stock-based compensation expense				12,576
Gain on extinguishment of debt				0
Amortization and write-off of deferred financing fees				6,685
Change in book overdraft				(14,885)
(Gains) losses on sale of assets and other, net				14,907
Deferred income taxes				76,644
Derivatives activities:
Total (gains) losses				34,711
Cash settlements				182
Cash settlements on canceled derivatives				0
Changes in assets and liabilities:
(Increase) decrease in accounts receivable – trade, net				(97,653)
(Increase) decrease in other assets				996
Increase (decrease) in accounts payable and accrued expenses				28,187
Increase (decrease) in other liabilities				7,414
Net cash provided by operating activities				442,968
Cash flow from investing activities:
Property acquisitions				(3,933)
Development of oil and natural gas properties				(588,829)
Purchases of other property and equipment				(5,750)
Settlement of advance to affiliate				0
Proceeds from sale of properties and equipment and other				11,530
Net cash provided by (used in) investing activities				(586,982)
Cash flow from financing activities:
Proceeds from borrowings				1,225,475
Repayments of debt				(615,200)
Dividends paid				(13,204)
Financing fees and other, net				(459)
Proceeds from stock option exercises				730
Capital contributions from affiliate				0
Distributions to affiliate				0
Excess tax benefit from stock-based compensation				2,345
Net cash provided by (used in) financing activities				599,687
Net increase (decrease) in cash and cash equivalents				455,673
Cash and cash equivalents:
Beginning	$ 455,985			312
Ending				$ 455,985