Summary Of Significant Accounting Policies (Schedule Of Other Accruals And Current Liabilities) (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Sep. 30, 2024 |
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| Summary Of Significant Accounting Policies [Line Items] | ||
| Accrued Capital Expenditures | $ 59,166 | $ 47,344 |
| Regulatory Liabilities | 18,650 | 29,352 |
| Reserve for Gas Replacement | 12,706 | 0 |
| Liability for Royalty and Working Interests | 28,203 | 15,007 |
| Non-Qualified Benefit Plan Liability | 14,135 | 14,135 |
| Other | 58,983 | 57,065 |
| Other Accruals and Current Liabilities | 207,179 | 162,903 |
| Federal | ||
| Summary Of Significant Accounting Policies [Line Items] | ||
| Federal Income Taxes Payable | $ 15,336 | $ 0 |
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- Definition Current Liabilities, Reserve for Gas Replacement No definition available.
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- Definition Defined Benefit Plan, Benefit Obligation, Current No definition available.
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for obligations incurred for oil and gas properties with joint interest partners. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). No definition available.
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- Definition Other Accrued Liabilities, Accrued Capital Expenditures No definition available.
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- Definition Regulatory Liability, Current, Other No definition available.
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- Definition Summary Of Significant Accounting Policies [Line Items] No definition available.
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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