Oil and Natural Gas Properties (Tables)

3 Months Ended

Mar. 31, 2014

Oil and Natural Gas Properties [Abstract]

Capitalized Costs Relating to Oil and Natural Gas Producing Activities Disclosure

Aggregate capitalized costs related to oil, natural gas and NGL production activities with applicable accumulated depletion and amortization are presented below:

	March 31, 2014			December 31, 2013
	(in thousands)
Oil and natural gas:
Proved properties	$	3,541,516		$	3,397,785
Unproved properties	1,415,874			1,415,874
	4,957,390			4,813,659
Less accumulated depletion and amortization	(76,083		)	(10,394		)
	$	4,881,307		$	4,803,265