Balance Sheets (Successor, USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Successor
Current assets
Cash and cash equivalents	$ 1,586	$ 51,041
Accounts receivable – trade, net	100,359	122,855
Derivative instruments	43,694	5,596
Other current assets	59,259	30,833
Total current assets	204,898	210,325
Noncurrent assets
Oil and natural gas properties (successful efforts method)	4,872,059	4,813,659
Less accumulated depletion and amortization	(525,007)	(10,394)
Oil and gas property, net (successful efforts method)	4,347,052	4,803,265
Other property and equipment	115,999	83,126
Less accumulated depreciation	(8,452)	(233)
Other property and equipment, net	107,547	82,893
Derivative instruments	0	2,511
Advance to affiliate	293,627	0
Other noncurrent assets	14,284	8,051
Noncurrent assets excluding property total	307,911	10,562
Total noncurrent assets	4,762,510	4,896,720
Total assets	4,967,408	5,107,045
Current liabilities:
Accounts payable and accrued expenses	242,350	264,271
Derivative instruments	0	20,393
Other accrued liabilities	19,087	28,993
Current portion of long-term debt	0	211,558
Total current liabilities	261,437	525,215
Noncurrent liabilities
Credit facility	1,173,175	1,173,175
Senior notes, net	913,777	916,428
Derivative instruments	0	4,649
Other noncurrent liabilities	200,015	192,091
Total noncurrent liabilities	2,286,967	2,286,343
Member’s equity:
Commitments and contingencies (Note 10)
Additional paid-in capital	2,416,381	2,315,460
Accumulated income (deficit)	2,623	(19,973)
Total member's equity	2,419,004	2,295,487
Total liabilities and member’s equity	$ 4,967,408	$ 5,107,045