CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 78,348	$ 69,852
Accounts receivable
Trade, net	242,303	173,241
Joint interest, net	23,999	28,165
Other	11,946	18,062
Assets from price risk management activities	0	967
Prepaid assets	43,402	48,042
Other current assets	1,808	1,674
Total current assets	401,806	340,003
Property and equipment:
Proved properties	5,304,468	5,232,479
Unproved properties, not subject to amortization	227,411	219,055
Other property and equipment	29,452	29,091
Total property and equipment	5,561,331	5,480,625
Accumulated depreciation, depletion and amortization	(3,190,383)	(3,092,043)
Total property and equipment, net	2,370,948	2,388,582
Other long-term assets:
Assets from price risk management activities	0	2,770
Equity method investments	2,665	0
Other well equipment inventory	17,650	17,449
Operating lease assets	5,649	5,714
Other assets	11,776	12,297
Total assets	2,810,494	2,766,815
Current liabilities:
Accounts payable	91,158	85,815
Accrued liabilities	126,838	130,459
Accrued royalties	68,134	59,037
Current portion of long-term debt	6,060	6,060
Current portion of asset retirement obligations	51,273	60,311
Liabilities from price risk management activities	308,402	186,526
Accrued interest payable	17,981	37,542
Current portion of operating lease liabilities	1,778	1,715
Other current liabilities	33,970	33,061
Total current liabilities	705,594	600,526
Long-term liabilities:
Long-term debt, net of discount and deferred financing costs	925,081	956,667
Asset retirement obligations	390,806	373,695
Liabilities from price risk management activities	42,458	13,938
Operating lease liabilities	15,853	16,330
Other long-term liabilities	35,577	45,006
Total liabilities	2,115,369	2,006,162
Commitments and Contingencies (Note 10)
Stockholders' equity:
Preferred stock, $0.01 par value; 30,000,000 shares authorized and no shares issued or outstanding as of March 31, 2022 and December 31, 2021	0	0
Common stock $0.01 par value; 270,000,000 shares authorized; 82,535,186 and 81,881,477 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	825	819
Additional paid-in capital	1,677,705	1,676,798
Accumulated deficit	(983,405)	(916,964)
Total stockholdersʼ equity	695,125	760,653	$ 926,601
Total liabilities and stockholdersʼ equity	$ 2,810,494	$ 2,766,815