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Oil and Natural Gas Properties (Tables) | 6 Months Ended
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Mar. 31, 2022
Extractive Industries [Abstract] |
Schedule of Oil and Gas Properties | Oil and natural gas properties are summarized below:
| March 31, 2022 |  | September 30, 2021
| (In thousands)
Proved | $ | 433,274 |  |  | $ | 402,165 |
Unproved | 16,491 |  |  | 20,557 |
Work-in-progress | 28,207 |  |  | 11,411 |
| 477,972 |  |  | 434,133 |
Accumulated depletion and amortization | (101,441) |  |  | (88,336) |
Total oil and natural gas properties, net | $ | 376,531 |  |  | $ | 345,797 |

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