Oil and Gas Properties (Tables)

9 Months Ended

Sep. 30, 2016

Oil And Gas Property [Abstract]

Summary of Oil and Gas Properties

A summary of oil and gas properties follows:

	September 30, 2016 (unaudited)			December 31, 2015
	(In thousands)
Proved properties and equipment	$	525,809		$	584,692
Proved properties and equipment held for sale		79,537			—
Unproved properties		71,658			70,298
Less accumulated depreciation, depletion, and amortization		(160,793	)		(166,890	)
Less accumulated depreciation, depletion, amortization, and impairment on properties held for sale		(65,922	)		—
	$	450,289		$	488,100