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Supplemental Information on Oil and Natural Gas Operations (Unaudited) - Narrative (Details) Boe in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 Boe | Dec. 31, 2021 $ / bbl | Dec. 31, 2021 $ / MMBTU | Dec. 31, 2021 $ / Mcf | Dec. 31, 2022 Boe $ / Mcf $ / bbl $ / MMBTU | Sep. 30, 2021 Boe | Sep. 30, 2021 $ / bbl | Sep. 30, 2021 $ / MMBTU | Sep. 30, 2021 $ / Mcf
Oil and Gas, Average Sale Price and Production Cost Per Unit [Line Items] |  |  |  |  |  |  |  |  |
Revisions | 133 |  |  |  | (6,331) | 4,772 |  |  |
Extensions and discoveries | 2,026 |  |  |  | 14,796 | 13,759 |  |  |
Result of drilling successful wells that were previously classified as unproved locations |  |  |  |  | 7,759 | 6,564 |  |  |
Result of drilling successful wells offsetting locations that were previously unproven locations |  |  |  |  | 7,037 | 7,195 |  |  |
West Texas Intermediate (WTI) |  |  |  |  |  |  |  |  |
Oil and Gas, Average Sale Price and Production Cost Per Unit [Line Items] |  |  |  |  |  |  |  |  |
Oil and natural gas liquids, average WTI intermediate spot price (USD per bbl) | $ / bbl |  | 66.55 |  |  | 94.14 |  | 57.64 |  |
Henry Hub |  |  |  |  |  |  |  |  |
Oil and Gas, Average Sale Price and Production Cost Per Unit [Line Items] |  |  |  |  |  |  |  |  |
Gas, average henry hub spot price (USD per mmbtu) | $ / MMBTU |  |  | 3.60 |  | 6.36 |  |  | 2.94 |
Oil |  |  |  |  |  |  |  |  |
Oil and Gas, Average Sale Price and Production Cost Per Unit [Line Items] |  |  |  |  |  |  |  |  |
Percentage of reserves | 64.10% | 64.10% | 64.10% | 64.10% | 62.90% | 64.10% | 64.10% | 64.10% | 64.10%
Price (USD per bbl/mcf) | $ / bbl |  | 64.60 |  |  | 91.96 |  | 55.73 |  |
Natural Gas |  |  |  |  |  |  |  |  |
Oil and Gas, Average Sale Price and Production Cost Per Unit [Line Items] |  |  |  |  |  |  |  |  |
Percentage of reserves | 17.60% | 17.60% | 17.60% | 17.60% | 18.50% | 17.60% | 17.60% | 17.60% | 17.60%
Price (USD per bbl/mcf) |  | 1.65 |  | 1.65 | 3.16 |  | 0.99 |  | 0.99
NGLs |  |  |  |  |  |  |  |  |
Oil and Gas, Average Sale Price and Production Cost Per Unit [Line Items] |  |  |  |  |  |  |  |  |
Percentage of reserves | 18.30% | 18.30% | 18.30% | 18.30% | 18.60% | 18.30% | 18.30% | 18.30% | 18.30%
Price (USD per bbl/mcf) |  | 13.75 |  | 13.75 | 25.55 |  | 9.83 |  | 9.83

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