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Supplementary Information - Standardized Measure of Discounted Future Net Cash Flow and Changes therein Relating to Proved Oil and Gas Reserves (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Sales of oil and gas produced, net of production costs $ (107,742) $ (86,302)
Net changes in prices and production costs (98,132) 72,640
Extensions, discoveries and improved recovery 178,960 126,029
Revisions of previous quantity estimates (3,877) (10,902)
Net change in development costs 66,552 (2,814)
Reserves sold (398) (818)
Reserves purchased 0 0
Accretion of discount 24,454 13,581
Net change in income taxes 4,532 (8,435)
Changes in production rates (timing) and other (30,836) 5,751
Net change 33,512 108,730
Standardized measure of discounted future net cash flow:    
Beginning of year 244,536 135,806
End of year $ 278,048 $ 244,536