Costs of Oil and Gas Properties

3 Months Ended

Mar. 31, 2014

Oil and Gas Property, Successful Effort Method, Gross [Abstract]

Costs of Oil and Gas Properties

Costs of Oil and Gas Properties

The following table sets forth the net capitalized costs for oil and gas properties as of March 31, 2014 and December 31, 2013.

	March 31, 2014			December 31, 2013
	(In thousands)
Proved properties	$	2,338,303		$	2,317,053
Unproved properties	74,921			86,224
Total capitalized costs	2,413,224			2,403,277
Accumulated depletion	(1,312,963		)	(1,282,989		)
Net capitalized costs	$	1,100,261		$	1,120,288