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Note 6 - Exploratory Extension Well Costs (Tables) | 9 Months Ended
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Sep. 30, 2023
Notes Tables |
Capitalized Exploratory Well Costs, Roll Forward [Table Text Block] |
|  | Nine Months Ended September 30, 2023 |
Beginning capitalized exploratory/extension well costs |  | $ | 186,427 |
Additions to exploratory/extension well costs |  |  | 416,091 |
Reclassification to proved properties |  |  | (551,217 | )
Exploratory/extension well costs charged to exploration and abandonment expense |  |  | — |
Ending capitalized exploratory/extension well costs |  | $ | 51,301 |

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