Supplemental Oil and Gas Disclosures (Unaudited) (Future Net Cash Flows From Proved Oil and Gas Reserves) (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Gross Amounts
Future cash inflows	$ 122,286	$ 218,982
Future production costs	27,487	39,841
Future net cash flows before income tax expense	94,799	179,141
10% discount to reflect timing of cash flows	(33,521)	(62,615)
Standardized measure of discounted cash flows	61,278	116,526	$ 36,839
Net Amounts
Future net cash flows before income tax expense	74,891	141,521
10% discount to reflect timing of cash flows	(26,481)	(49,465)
Standardized measure of discounted cash flows	$ 48,410	$ 92,056