Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Revenues
Natural gas sales	$ 6,626	$ 10,408
Oil sales	23,701	5,138
Natural gas liquid sales	1,997	1,167
Gathering and transportation sales	55,825	53,972
Total revenues	88,149	70,685
Operating expenses:
Lease operating expenses	12,994	14,981
Transportation operating expenses	11,600	12,478
Cost of sales	77	328
Production taxes	1,476	1,167
General and administrative	22,655	22,901
Unit-based compensation expense	3,373	1,941
(Gain) loss on sale of assets	(4,150)	219
Depreciation, depletion and amortization	34,830	33,799
Asset impairments	4,688	7,646
Accretion expense	773	1,127
Total operating expenses	88,316	96,587
Other (income) expense
Interest expense, net	8,341	5,093
Gain on embedded derivatives		(47,794)
Earnings from equity investments	(7,885)	(2,382)
Other (income) expense	2,417	(50)
Total other (income) expenses	2,873	(45,133)
Total expenses	91,189	51,454
Income (loss) before income taxes	(3,040)	19,231
Income tax expense	0	0
Net income (loss)	(3,040)	19,231
Less:
Preferred unit paid-in-kind distributions	(2,625)
Preferred unit distributions	(33,250)	(39,375)
Preferred unit amortization	(1,796)	(24,340)
Net loss attributable to common unitholders	$ (40,711)	$ (44,484)
Net loss per unit
Weighted Common Units - Basic and Diluted (in units)	14,039,726	4,658,970
Common units
Other (income) expense
Net income (loss)	$ (3,040)	$ 19,231
Less:
Net loss attributable to common unitholders	$ (40,711)	$ (44,484)
Net loss per unit
Common units - Basic and Diluted (in dollars per share)	$ (2.90)	$ (9.55)
Weighted Common Units - Basic and Diluted (in units)	14,039,726	4,658,970