Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Revenues	$ 12,770	$ 17,697
Operating expenses:
Production taxes	613	906
General and administrative	5,826	9,679
Depreciation, depletion, amortization and accretion	3,292	8,153
Total operating expenses	14,754	24,680
Operating loss	(1,984)	(6,983)
Other income (expense):
Gain (loss) from commodity derivatives	21,198	(10,577)
Change in fair value of financial instruments	(17,363)	(335)
Interest expense	(3,802)	(4,828)
Other income	47	31
Total other income (expense)	80	(15,709)
Net loss before income taxes	(1,904)	(22,692)
Income tax expense	0	0
Net loss	(1,904)	(22,692)
Paid-in-kind dividends on preferred stock	(7,172)	(4,825)
Net loss attributable to common stockholders	$ (9,076)	$ (27,517)
Net loss per common share-basic and diluted:
Basic (in dollars per share)	$ (0.10)	$ (0.35)
Diluted (in dollars per share)	$ (0.10)	$ (0.35)
Weighted average common shares outstanding:
Basic (in shares)	94,148,261	77,916,448
Diluted (in shares)	94,148,261	77,916,448
Oil sales
Revenues:
Revenues	$ 12,362	$ 14,701
Operating expenses:
Costs of goods and services sold	4,696	4,764
Natural gas sales
Revenues:
Revenues	189	1,526
Natural gas liquid sales
Revenues:
Revenues	219	1,470
Gathering, processing and transportation
Operating expenses:
Costs of goods and services sold	$ 327	$ 1,178