Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Feb. 08, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Oil and gas sales	$ 6,657	$ 13,958	$ 21,561	$ 22,440	$ 46,478
Expenses:
Lease operating expenses	2,158	4,164	4,972	6,342	12,012
Production taxes	298	732	334	1,175	1,561
Depreciation, depletion and amortization	1,796	4,136	6,023	6,418	12,528
Ceiling test write-down		0	0
General and administrative	2,468	3,297	4,004	4,986	7,304
Restructuring expense	0	1,284	0	1,952	0
Accretion of asset retirement obligation	17	46	42	69	240
Interest expense	307	500	7,636	831	15,117
Lease costs	156	271	0	453	0
Expenses	7,200	14,430	23,011	22,226	48,762
Other income:
Gain on sale of oil and gas properties		0	0
Other income (expense)	(290)	164	178	215	191
Derivative expense	0	0	(54)	0	(54)
Other income (expense), net	(290)	164	124	215	137
Income/(loss) from operations	(833)	(308)	(1,326)	429	(2,147)
Reorganization items, net	262,801	0	0	0	0
Income tax expense	(241)	(453)	0	(453)	(106)
Net income (loss)	261,727	(761)	(1,326)	(24)	(2,253)
Preferred stock dividend	0	0	1,285	0	2,570
Income (loss) available to common stockholders	$ 261,727	$ (761)	$ (2,611)	$ (24)	$ (4,823)
Net income (loss) per common share:
Basic (in dollars per share)	$ 9.50	$ (0.08)	$ (0.10)	$ 0.00	$ (0.19)
Diluted (in dollars per share)	$ 8.92	$ (0.08)	$ (0.10)	$ 0.00	$ (0.19)
Weighted average number of common shares:
Basic (shares)	25,587	9,371	25,568	9,371	25,554
Diluted (shares)	27,289	9,371	25,568	9,371	25,554