Parent Directory| Name | Size | Last Modified |
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| 0000070145-24-000004-index.html | 2024-02-08 08:14:52 | |
| 0000070145-24-000004.txt | 2024-02-08 08:14:52 | |
 0000070145-24-000004-xbrl.zip | 59836 | 2024-02-08 08:14:52 |
 exhibit998kimagea15a.jpg | 38108 | 2024-02-08 08:14:52 |
| FilingSummary.xml | 1700 | 2024-02-08 08:14:52 |
| Financial_Report.xlsx | 5712 | 2024-02-08 08:14:52 |
| MetaLinks.json | 17703 | 2024-02-08 08:14:52 |
| nfg-12312023xexhibit99x8k.htm | 1267434 | 2024-02-08 08:14:52 |
| nfg-20240207.htm | 33015 | 2024-02-08 08:14:52 |
| nfg-20240207.xsd | 1994 | 2024-02-08 08:14:52 |
| nfg-20240207_htm.xml | 2713 | 2024-02-08 08:14:52 |
| nfg-20240207_lab.xml | 24139 | 2024-02-08 08:14:52 |
| nfg-20240207_pre.xml | 12592 | 2024-02-08 08:14:52 |
| R1.htm | 38112 | 2024-02-08 08:14:52 |
| report.css | 2767 | 2024-02-08 08:14:52 |
| Show.js | 1085 | 2024-02-08 08:14:52 |