v3.25.4
Supplemental Information on Oil and Gas Producing Activities (Unaudited) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Capitalized Costs Relating to Oil and Gas Producing Activities      
Unproved properties $ 796,705 $ 879,483  
Proved properties 14,049,003 14,395,680  
Total oil and gas properties 14,845,708 15,275,163  
Accumulated depletion (5,674,702) (5,625,419)  
Net capitalized costs 9,171,006 9,649,744  
Costs Incurred in Certain Oil and Gas Activities      
Unproved property 129,247 90,995 $ 151,135
Development costs 677,633 614,855 956,267
Exploration costs 7,836   8,079
Total costs incurred 814,716 705,850 1,115,481
Results of Operations for Oil and Gas Producing Activities      
Revenues 5,010,239 4,115,299 4,276,445
Operating expenses:      
Production expenses 3,155,685 3,029,294 2,919,654
Exploration expenses 2,990 2,618 2,691
Depletion 741,685 754,010 738,992
Impairment of unproved properties 29,358 47,433 51,302
Results of operations before income tax expense 1,080,521 281,944 563,806
Income tax expense (230,971) 33,653 (122,695)
Results of operations 849,550 315,597 $ 441,111
R&D tax credits 7,000 $ 95,000  
Utica Shale Property and Equipment      
Capitalized Costs Relating to Oil and Gas Producing Activities      
Unproved properties 28,000    
Proved properties 1,000,000    
Accumulated depletion (367,000)    
Net capitalized costs $ 706,000