Oil And Natural Gas Properties (Tables)

6 Months Ended

Jun. 30, 2016

Oil And Natural Gas Properties [Abstract]

Oil and Natural Gas Properties

	June 30,		December 31,
	2016		2015
Oil and natural gas properties and related equipment (successful efforts method)
Property costs
Proved property	$	731,435	$	731,548
Unproved property		41		39
Land		501		501
Total property costs		731,977		732,088
Materials and supplies		1,056		1,056
Total		733,033		733,144
Less: Accumulated depreciation, depletion, amortization and impairments		(657,259)		(652,167)
Oil and natural gas properties and equipment, net	$	75,774	$	80,977

Gathering and Transportation Assets

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

	June 30,		December 31,
	2016		2015
Gathering and transportation assets
Catarina midstream assets	$	147,695	$	147,479
Less: Accumulated depreciation, depletion, amortization		(4,840)		(1,402)
Total gathering and transportation assets	$	142,855	$	146,077

Depreciation, Depletion, Amortization and Impairments

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
DD&A of oil and natural gas-related assets	$	942	$	3,079	$	2,962	$	6,199
DD&A of gathering and transportation related assets		1,729		—		3,438		—
Total DD&A		2,671		3,079		6,400		6,199
Asset impairments		—		862		1,309		83,727
Total	$	2,671	$	3,941	$	7,709	$	89,926