Consolidated balance sheets - USD ($) $ in Thousands		Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents		$ 40,258	$ 40,857
Accounts receivable, net		60,298	85,223
Derivatives		81,129	51,929
Other current assets		17,828	22,470
Total current assets		199,513	200,479
Oil and natural gas properties, full cost method:
Evaluated properties		7,773,776	7,421,799
Unevaluated properties not being depleted		83,558	142,354
Less accumulated depletion and impairment		(6,669,537)	(5,725,114)
Oil and natural gas properties, net		1,187,797	1,839,039
Midstream service assets, net		115,385	128,678
Other fixed assets, net		31,966	32,504
Property and equipment, net		1,335,148	2,000,221
Derivatives		9,117	23,387
Operating lease right-of-use assets		20,931	28,343
Other noncurrent assets, net		16,614	12,007
Total assets		1,581,323	2,264,437
Current liabilities:
Accounts payable and accrued liabilities		46,090	40,521
Accrued capital expenditures		25,061	36,328
Undistributed revenue and royalties		25,492	33,123
Derivatives		852	7,698
Operating lease liabilities		11,812	14,042
Other current liabilities		33,801	39,184
Total current liabilities		143,108	170,896
Long-term debt, net		1,218,947	1,170,417
Derivatives		1,657	0
Asset retirement obligations		63,425	60,691
Operating lease liabilities		11,715	17,208
Other noncurrent liabilities		959	3,351
Total liabilities		1,439,811	1,422,563
Commitments and contingencies
Stockholders' equity:
Preferred stock		0	0
Common stock	[1]	120	2,373
Additional paid-in capital		2,395,487	2,385,355
Accumulated deficit		(2,254,095)	(1,545,854)
Total stockholders' equity		141,512	841,874
Total liabilities and stockholders' equity		$ 1,581,323	$ 2,264,437

[1] Common stock shares were retroactively adjusted for the Company's 1-for-20 reverse stock split effective June 1, 2020. See Note 7.a.