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| 0000070145-25-000034-index.html | 2025-11-06 08:17:04 | |
| 0000070145-25-000034.txt | 2025-11-06 08:17:04 | |
 0000070145-25-000034-xbrl.zip | 72055 | 2025-11-06 08:17:04 |
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| nfg-20251105.htm | 33054 | 2025-11-06 08:17:04 |
| nfg-20251105.xsd | 1875 | 2025-11-06 08:17:04 |
| nfg-20251105_htm.xml | 2713 | 2025-11-06 08:17:04 |
| nfg-20251105_lab.xml | 21885 | 2025-11-06 08:17:04 |
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| R1.htm | 38094 | 2025-11-06 08:17:04 |
| report.css | 2767 | 2025-11-06 08:17:04 |
| Show.js | 1084 | 2025-11-06 08:17:04 |