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SUPPLEMENTARY OIL AND NATURAL GAS INFORMATION (UNAUDITED) - COSTS INCURRED IN OIL AND NATURAL GAS PROPERTY ACQUISITION, EXPLORATION AND DEVELOPMENT (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development |  |
Acquisition of proved properties | $ 146 | $ 66
Acquisition of unproved properties | 0 | 0
Exploration costs | 34 | 716
Development costs | 4,048 | 11,430
Total | 4,228 | 12,212
Canada |  |
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development |  |
Acquisition of proved properties | 146 | 66
Acquisition of unproved properties | 0 | 0
Exploration costs | 34 | 461
Development costs | 3,865 | 6,331
Total | 4,045 | 6,858
United States |  |
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development |  |
Acquisition of proved properties | 0 | 0
Acquisition of unproved properties | 0 | 0
Exploration costs | 0 | 255
Development costs | 183 | 5,099
Total | $ 183 | $ 5,354

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