Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070145-22-000009-index-headers.html | 2022-05-06 08:14:13 | |
| 0000070145-22-000009-index.html | 2022-05-06 08:14:13 | |
| 0000070145-22-000009.txt | 2022-05-06 08:14:13 | |
 0000070145-22-000009-xbrl.zip | 76275 | 2022-05-06 08:14:13 |
 exhibit998kimagea15.jpg | 38108 | 2022-05-06 08:14:13 |
| FilingSummary.xml | 1727 | 2022-05-06 08:14:13 |
| Financial_Report.xlsx | 5687 | 2022-05-06 08:14:13 |
| MetaLinks.json | 17271 | 2022-05-06 08:14:13 |
| nfg-20220505.htm | 42081 | 2022-05-06 08:14:13 |
| nfg-20220505.xsd | 1992 | 2022-05-06 08:14:13 |
| nfg-20220505_htm.xml | 11076 | 2022-05-06 08:14:13 |
| nfg-20220505_lab.xml | 24137 | 2022-05-06 08:14:13 |
| nfg-20220505_pre.xml | 12590 | 2022-05-06 08:14:13 |
| nfg-3312022xexhibit99x8k.htm | 1643796 | 2022-05-06 08:14:13 |
| R1.htm | 38723 | 2022-05-06 08:14:13 |
| report.css | 2767 | 2022-05-06 08:14:13 |
| Show.js | 1085 | 2022-05-06 08:14:13 |