Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues
Gathering and transportation lease revenues	$ 59,090	$ 53,025
Total revenues	76,649	83,610
Operating expenses
Lease operating expenses	7,378	7,864
Transportation operating expenses	11,553	12,316
Production taxes	621	1,104
General and administrative expenses	17,610	23,653
Unit-based compensation expense	1,351	1,938
Gain on sale of assets		(3,186)
Depreciation, depletion and amortization	25,333	25,987
Asset impairments	32,119
Accretion expense	526	497
Total operating expenses	96,491	70,173
Other (income) expense
Interest expense, net	39,789	10,961
Earnings from equity investments	(2,831)	(12,859)
Other income	(5,860)	(546)
Total other (income) expenses	31,098	(2,444)
Total expenses	127,589	67,729
Income (loss) before income taxes	(50,940)	15,881
Income tax expense	202	190
Net income (loss)	(51,142)	15,691
Preferred unit paid-in-kind distributions	(14,409)	(3,500)
Preferred unit distributions	(8,838)	(33,425)
Preferred unit amortization	(1,708)	(2,358)
Deemed contribution	103,773
Net income (loss) attributable to common unitholders - Basic	27,676	(23,592)
Mark-to-market on Warrant	(3,244)
Net income (loss) attributable to common unitholders - Diluted	$ 24,432	$ (23,592)
Net income (loss) per unit
Common units - Basic (in dollars per share)	$ 1.46	$ (1.55)
Common units - Diluted (in dollars per share)	$ 1.23	$ (1.55)
Common units - Basic	18,939,145	15,264,284
Common units - Diluted	19,810,679	15,264,284
Natural gas sales
Revenues
Revenues	$ 683	$ 953
Oil sales
Revenues
Revenues	9,512	21,272
Natural gas liquid sales
Revenues
Revenues	539	1,709
Gathering and transportation sales
Revenues
Revenues	$ 6,825	$ 6,651