Oil And Natural Gas Properties (Tables)

3 Months Ended

Mar. 31, 2016

Oil And Natural Gas Properties [Abstract]

Oil and Natural Gas Properties

	March 31,		December 31,
	2016		2015
Oil and natural gas properties and related equipment (successful efforts method)
Property costs
Proved property	$	731,735	$	731,548
Unproved property		41		39
Land		501		501
Total property costs		732,277		732,088
Materials and supplies		1,056		1,056
Total		733,333		733,144
Less: Accumulated depreciation, depletion, amortization and impairments		(655,467)		(652,167)
Oil and natural gas properties and equipment, net	$	77,866	$	80,977

Gathering and Transportation Assets

Gathering and transportation assets consist of the following (in thousands):

	March 31,		December 31,
	2016		2015
Gathering and transportation assets
Catarina midstream assets	$	147,566	$	147,479
Less: Accumulated depreciation, depletion, amortization		(3,111)		(1,402)
Total gathering and transportation assets	$	144,455	$	146,077

Depreciation, Depletion, Amortization and Impairments

Depreciation, depletion, amortization and impairments consisted of the following (in thousands):

	March 31,		March 31,
	2016		2015
DD&A of oil and natural gas-related assets	$	2,020	$	3,120
DD&A of gathering and transportation related assets		1,710		—
Total DD&A		3,730		3,120
Asset impairments		1,309		82,865
Total	$	5,039	$	85,985