CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 59,427	$ 34,233
Accounts receivable
Trade, net	111,471	106,220
Joint interest, net	21,480	50,471
Other	13,606	18,448
Assets from price risk management activities	2	6,876
Prepaid assets	46,024	29,285
Other current assets	1,718	1,859
Total current assets	253,728	247,392
Property and equipment:
Proved properties	5,190,096	4,945,550
Unproved properties, not subject to amortization	250,629	254,994
Other property and equipment	28,904	32,853
Total property and equipment	5,469,629	5,233,397
Accumulated depreciation, depletion and amortization	(2,986,142)	(2,697,228)
Total property and equipment, net	2,483,487	2,536,169
Other long-term assets:
Assets from price risk management activities	49	945
Other well equipment inventory	21,163	18,927
Operating lease assets	5,748	6,855
Other assets	21,989	24,258
Total assets	2,786,164	2,834,546
Current liabilities:
Accounts payable	106,098	104,864
Accrued liabilities	133,261	163,379
Accrued royalties	40,404	27,903
Current portion of long-term debt	6,060	0
Current portion of asset retirement obligations	51,488	49,921
Liabilities from price risk management activities	248,361	66,010
Accrued interest payable	17,812	9,509
Current portion of operating lease liabilities	1,651	1,793
Other current liabilities	30,697	24,155
Total current liabilities	635,832	447,534
Long-term liabilities:
Long-term debt, net of discount and deferred financing costs	978,777	985,512
Asset retirement obligations	406,475	392,348
Liabilities from price risk management activities	35,856	9,625
Operating lease liabilities	16,781	18,554
Other long-term liabilities	37,819	54,372
Total liabilities	2,111,540	1,907,945
Commitments and Contingencies (Note 11)
Stockholders' equity:
Preferred stock, $0.01 par value; 30,000,000 shares authorized and no shares issued or outstanding as of September 30, 2021 and December 31, 2020	0	0
Common stock $0.01 par value; 270,000,000 shares authorized; 81,881,477 and 81,279,989 shares issued and outstanding as of September 30, 2021 and December 31, 2020, respectively	819	813
Additional paid-in capital	1,671,781	1,659,800
Accumulated deficit	(997,976)	(734,012)
Total stockholdersʼ equity	674,624	926,601
Total liabilities and stockholdersʼ equity	$ 2,786,164	$ 2,834,546