Parent Directory| Name | Size | Last Modified |
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| 0000070145-22-000026-index.html | 2022-08-05 08:20:46 | |
| 0000070145-22-000026.txt | 2022-08-05 08:20:46 | |
 0000070145-22-000026-xbrl.zip | 77925 | 2022-08-05 08:20:46 |
 exhibit998kimagea15.jpg | 38108 | 2022-08-05 08:20:46 |
| FilingSummary.xml | 1727 | 2022-08-05 08:20:46 |
| Financial_Report.xlsx | 5712 | 2022-08-05 08:20:46 |
| MetaLinks.json | 17269 | 2022-08-05 08:20:46 |
| nfg-20220804.htm | 41876 | 2022-08-05 08:20:46 |
| nfg-20220804.xsd | 1992 | 2022-08-05 08:20:46 |
| nfg-20220804_htm.xml | 11076 | 2022-08-05 08:20:46 |
| nfg-20220804_lab.xml | 24137 | 2022-08-05 08:20:46 |
| nfg-20220804_pre.xml | 12590 | 2022-08-05 08:20:46 |
| nfg-6302022xexhibit99x8k.htm | 1707813 | 2022-08-05 08:20:46 |
| R1.htm | 38562 | 2022-08-05 08:20:46 |
| report.css | 2767 | 2022-08-05 08:20:46 |
| Show.js | 1085 | 2022-08-05 08:20:46 |