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Note 16 - Supplemental Oil and Gas Disclosures (Unaudited) - Results of Operations (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
$ / bbl
Dec. 31, 2021
USD ($)
$ / bbl
Revenues $ 49,715 $ 78,836
Production costs (14,562) (24,137)
Depreciation, depletion and amortization (4,720) (13,495)
Accretion of future site restoration (170) (330)
Results of operations from oil and gas producing activities (excluding corporate overhead and interest costs) $ 30,263 $ 40,874
Depletion rate per barrel of oil equivalent (in USD per Barrel of Oil) | $ / bbl 5.80 6.67