Oil And Natural Gas Properties (Tables)

12 Months Ended

Dec. 31, 2015

Oil and natural gas properties consist of the following (in thousands):



	December 31,
	2015		2014
Oil and natural gas properties and related equipment (successful efforts method)
Property costs
Proved property	$	731,548	$	649,432
Unproved property		39		1,560
Land		501		501
Total property costs		732,088		651,493
Materials and supplies		1,056		1,056
Total		733,144		652,549
Less: Accumulated depreciation, depletion, amortization and impairments		(652,167)		(517,239)
Oil and natural gas properties and equipment, net	$	80,977	$	135,310

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


	December 31,
	2015		2014
Gathering and transportation assets
Catarina midstream assets	$	147,479	$	—
Less: Accumulated depreciation, depletion, amortization		(1,402)		—
Total gathering and transportation assets	$	146,077	$	—

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


	Year Ended December 31,
	2015		2014

DD&A of oil and natural gas-related assets	$	10,330	$	17,533
DD&A of gathering and transportation related assets		4,206		—
Total DD&A		14,536		17,533
Asset impairments		123,860		5,424
Total	$	138,396	$	22,957