CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Gain (loss) on commodity derivative instruments, net	$ 2,506,815	$ (3,035,636)	$ 270,607	$ (3,858,990)
Total revenues	32,978,851	18,407,956	82,862,661	40,007,192
Costs and expenses
Production and ad valorem taxes	2,236,405	1,410,335	5,757,742	3,031,732
Depreciation and depletion expense	15,098,107	7,607,137	37,690,558	15,494,439
Impairment of oil and natural gas properties	34,880,071	0	65,828,980	54,753,444
Marketing and other deductions	2,332,010	1,689,780	5,938,093	2,868,655
General and administrative expense	5,694,534	4,879,497	17,248,399	11,650,291
Total costs and expenses	60,241,127	15,586,749	132,463,772	87,798,561
Operating (loss) income	(27,262,276)	2,821,207	(49,601,111)	(47,791,369)
Other expense
Equity loss in affiliate	80,896		80,896
Interest expense	1,468,419	1,843,483	4,332,633	2,677,083
Net (loss) income before income taxes	(28,811,591)	977,724	(54,014,640)	(50,468,452)
Provision for income taxes	102,997	1,977,116	610,798	1,977,116
Net loss	(28,914,588)	(999,392)	(54,625,438)	(52,445,568)
Distribution and accretion on Series A preferred units	(3,469,584)	(2,840,456)	(10,408,752)	(2,840,456)
Net loss and distributions and accretion on Series A preferred units attributable to noncontrolling interests	16,146,535	141,003	33,398,555	141,003
Distribution on Class B units	(23,414)	(12,953)	(71,042)	(12,953)
Net loss attributable to common units	$ (16,261,051)	$ (3,711,798)	$ (31,706,677)	$ (55,157,974)
Net loss attributable to common units
Net loss attributable to common units per unit (basic) (in dollar per share)	$ (0.73)	$ (0.15)	$ (1.53)	$ (2.91)
Net loss attributable to common units per unit (diluted) (in dollar per share)	$ (0.73)	$ (0.15)	$ (1.53)	$ (2.91)
Weighted average number of common units outstanding
Weighted average number of common units outstanding Basic (in units)	22,399,748	24,079,289	20,715,633	18,962,446
Weighted average number of common units outstanding Diluted (in units)	22,399,748	24,079,289	20,715,633	18,962,446
Oil, natural gas and NGL revenues
Revenue	$ 29,531,138	$ 21,085,377	$ 80,278,506	$ 42,741,233
Lease bonus and other income
Revenue	$ 940,898	$ 358,215	$ 2,313,548	$ 1,124,949