Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues	$ 328,093	$ 481,366	$ 667,816	$ 892,975
Other income	890	790	2,185	1,040
Total revenues and other income	328,983	482,156	670,001	894,015
Taxes other than income	26,937	36,317	55,975	67,698
General and administrative expenses	26,895	19,235	49,872	37,927
Interest, net of amounts capitalized of $2,259, $975, $3,952 and $2,133, respectively	825	1,526	1,752	2,183
Depletion, depreciation, and amortization	49,767	35,400	91,799	70,745
Commodity derivatives expense (income)	(19,677)	56,854	(42,800)	249,573
Other expenses	3,990	6,621	5,481	8,733
Total expenses	239,706	301,814	463,275	721,050
Income before income taxes	89,277	180,342	206,726	172,965
Income tax provision	21,996	24,848	50,246	18,343
Net income	$ 67,281	$ 155,494	$ 156,480	$ 154,622
Earnings Per Share, Basic [Abstract]
Basic (in dollars per shares)	$ 1.30	$ 3.00	$ 3.03	$ 2.99
Diluted (in dollars per shares)	$ 1.25	$ 2.83	$ 2.90	$ 2.81
Weighted average common shares outstanding
Basic (in shares)	51,817	51,757	51,661	51,680
Diluted (in shares)	53,999	54,886	53,882	54,931
Oil, natural gas, and related product sales
Revenues	$ 302,946	$ 451,970	$ 617,435	$ 836,881
Lease operating expenses	130,291	124,351	259,465	242,179
Operating expenses	5,159	4,802	10,548	9,447
CO2 sales and transportation fees
Revenues	11,164	12,610	21,850	26,032
Operating expenses	1,597	1,681	2,793	4,498
Oil marketing revenues
Revenues	13,983	16,786	28,531	30,062
Operating expenses	$ 13,922	$ 15,027	$ 28,390	$ 28,067