Annual report pursuant to Section 13 and 15(d)

SUPPLEMENTAL OIL AND GAS DISCLOSURES - UNAUDITED - Change in Standard Measure of Discounted Future Net Cash Flows (Details)

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SUPPLEMENTAL OIL AND GAS DISCLOSURES - UNAUDITED - Change in Standard Measure of Discounted Future Net Cash Flows (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Changes in Standardized Measure      
Standardized measure, beginning of year $ 1,155,990,000 $ 493,706,000  
Sales and transfers of oil and gas produced, net of production costs (672,665,000) (370,456,000) $ (168,563,000)
Net changes in price, net of future production costs 1,368,626,000 980,922,000 (503,676,000)
Extensions and discoveries, net of future production and development costs     2,767,000
Changes in estimated future development costs (18,617,000) (25,357,000) (15,881,000)
Previously estimated development costs incurred 3,313,000 613,000 1,384,000
Revisions of quantity estimates 249,117,000 289,637,000 (65,218,000)
Accretion of discount 138,077,000 43,993,000 111,760,000
Net change in income taxes (369,307,000) (181,795,000) 87,713,000
Purchases of reserves in-place 225,205,000 319,000 44,621,000
Sales of reserves in-place 0    
Changes in production rates due to timing and other 183,222,000 (75,592,000) 11,899,000
Net (decrease) increase 1,106,971,000 662,284,000 (493,194,000)
Standardized measure, end of year $ 2,262,961,000 $ 1,155,990,000 $ 493,706,000