CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents		$ 112,931	$ 214,422
Accounts receivable, less allowance for doubtful accounts of $568 and $568		413,026	471,775
Contingent consideration receivable		29,500	29,500
Derivative assets		2,176	5,738
Other current assets		18,162	15,230
Total current assets		575,795	736,665
Derivative assets		36,600	38,601
Natural gas properties, successful efforts method	[1]	10,291,519	10,175,570
Accumulated depreciation and amortization	[1]	4,504,554	4,420,914
Natural gas and oil properties, successful efforts method, net	[1]	5,786,965	5,754,656
Other property and equipment		74,715	74,678
Accumulated depreciation and amortization		71,615	71,184
Other Property and equipment, net		3,100	3,494
Operating lease right-of-use assets		35,906	40,832
Deferred tax assets		35,436
Other assets		86,483	86,259
Total assets		6,560,285	6,660,507
Current liabilities:
Accounts payable		234,253	178,413
Asset retirement obligations		5,310	5,310
Accrued liabilities		381,110	420,898
Accrued interest		34,317	75,940
Derivative liabilities		845,312	162,767
Divestiture contract obligation		87,499	91,120
Current maturities of long-term debt		749,483	218,017
Total current liabilities		2,337,284	1,152,465
Bank debt		0	0
Senior notes		1,829,734	2,707,770
Deferred tax liabilities		32,243	117,642
Derivative liabilities		126,030	8,216
Deferred compensation liabilities		197,494	137,102
Operating lease liabilities		23,913	24,861
Asset retirement obligations and other liabilities		102,040	101,509
Divestiture contract obligation		311,443	325,279
Total liabilities		4,960,181	4,574,844
Commitments and contingencies
Stockholders’ Equity
Preferred stock, $1 par, 10,000,000 shares authorized, none issued and outstanding
Common stock, $0.01 par, 475,000,000 shares authorized, 262,777,606 issued at March 31, 2022 and 259,795,554 issued at December 31, 2021		2,627	2,598
Common stock held in treasury, 10,601,535 shares at March 31, 2022 and 10,002,646 shares at December 31, 2021		(46,159)	(30,007)
Additional paid-in capital		5,707,652	5,720,277
Accumulated other comprehensive loss		(75)	(150)
Retained deficit		(4,063,941)	(3,607,055)
Total stockholders’ equity		1,600,104	2,085,663	$ 1,637,535
Total liabilities and stockholders’ equity		$ 6,560,285	$ 6,660,507

[1] Includes capitalized asset retirement costs and the associated accumulated amortization.