Costs of Oil and Gas Properties

12 Months Ended

Dec. 31, 2016

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 certain information with respect to costs incurred in connection with the Company’s oil and gas producing activities during the years ended December 31, 2016, 2015 and 2014.

	2016		2015		2014
	(In thousands)
Property acquisitions:
Proved	$	—	$	—	$	—
Unproved	32,840		29,711		56,327
Developmental costs	49,614		81,466		342,716
Exploratory costs	20,095		14,342		4,350
Total	$	102,549	$	125,519	$	403,393

The following table sets forth the net capitalized costs for oil and gas properties as of 2016 and 2015.

	2016			2015
	(In thousands)
Proved properties	$	1,643,038		$	2,539,480
Unproved properties	74,171			46,022
Total capitalized costs	1,717,209			2,585,502
Accumulated depletion	(928,927		)	(1,460,404		)
Net capitalized costs	$	788,282		$	1,125,098