Supplemental Oil & Natural Gas Data (Unaudited) Reserve Quantities (Details)	3 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 16, 2013 Wells MBoe	Dec. 31, 2012 MBoe Wells	Dec. 31, 2013 MBoe	Dec. 31, 2014 Wells MBoe
Reserve Quantities [Line Items]
Decline in NYMEX oil spot price	42.00%
Decline in NYMEX natural gas price	30.00%
NYMEX Oil price	53.27				53.27
NYMEX Natural gas price	2.89				2.89
Predecessor
Reserve Quantities [Line Items]
Wells Drilled Gross Productive		340	467
ChangeInProvedReserves		40,414	203
Total proved reserves:
Beginning of year		275,129	274,926
Revisions of previous estimates		(39,092)	(22,162)
Extensions, discoveries and other additions		15,913	25,148
Purchases of minerals in place			11,094
Sales of minerals in place		2,775	556
Production		14,460	13,321
End of year		234,715	275,129
Proved developed reserves		156,161	150,216
Proved undeveloped reserves		78,554	124,913
Predecessor | Oil
Total proved reserves:
Beginning of year		204,208,000	185,880,000
Revisions of previous estimates		(13,536,000)	12,145,000
Extensions, discoveries and other additions		10,955,000	8,459,000
Purchases of minerals in place			8,304,000
Sales of minerals in place		(2,263,000)	(556,000)
Production		11,472,000	10,024,000
End of year		187,892,000	204,208,000
Proved developed reserves		122,224,000	118,937,000
Proved undeveloped reserves		65,668,000	85,271,000
Predecessor | Natural gas
Total proved reserves:
Beginning of year		425,519	534,279
Revisions of previous estimates		(153,330)	(205,845)
Extensions, discoveries and other additions		29,756	100,129
Purchases of minerals in place			16,740
Sales of minerals in place		(3,071)	0
Production		17,931	19,784
End of year		280,943	425,519
Proved developed reserves		203,624	187,668
Proved undeveloped reserves		77,319	237,851
Successor
Reserve Quantities [Line Items]
Wells Drilled Gross Productive					411
ChangeInProvedReserves				(667)	44,860
Total proved reserves:
Beginning of year				234,715	234,048
Revisions of previous estimates				0	(3,561)
Extensions, discoveries and other additions				0	26,360
Purchases of minerals in place					90,676
Sales of minerals in place				0	49,727
Production				667	18,888
End of year	278,908			234,048	278,908
Proved developed reserves	211,069			155,494	211,069
Proved undeveloped reserves	67,839			78,554	67,839
Successor | Oil
Total proved reserves:
Beginning of year				187,892,000	187,362,000
Revisions of previous estimates				0	(10,647,000)
Extensions, discoveries and other additions				0	20,435,000
Purchases of minerals in place					22,533,000
Sales of minerals in place				0	(41,216,000)
Production				530,000	14,065,000
End of year	164,402,000			187,362,000	164,402,000
Proved developed reserves	119,039,000			121,694,000	119,039,000
Proved undeveloped reserves	45,363,000			65,668,000	45,363,000
Successor | Natural gas
Total proved reserves:
Beginning of year				280,943	280,117
Revisions of previous estimates				0	42,514
Extensions, discoveries and other additions				0	35,552
Purchases of minerals in place					408,857
Sales of minerals in place				0	(51,065)
Production				826	28,938
End of year	687,037			280,117	687,037
Proved developed reserves	552,184			202,798	552,184
Proved undeveloped reserves	134,853			77,319	134,853