Supplemental Oil and Gas Information (Unaudited) -Standardized Measure of Discounted Future Net Cash Flows (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Supplemental Oil and Gas Information (Unaudited)
Future cash inflows	$ 4,277,014	$ 7,373,499
Future production costs	(2,751,065)	(3,824,348)
Future development costs	(313,290)	(309,188)
Future income tax expense	(203,770)	(520,731)
Future net cash flows for estimated timing of cash flows	1,008,889	2,719,232
10% annual discount for estimated timing of cash flows	(382,759)	(1,381,276)
Standardized measure of discounted future net cash flows	$ 626,130	$ 1,337,956	$ 919,845