Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070145-21-000027-index-headers.html | 2021-11-05 08:14:00 | |
| 0000070145-21-000027-index.html | 2021-11-05 08:14:00 | |
| 0000070145-21-000027.txt | 2021-11-05 08:14:00 | |
 0000070145-21-000027-xbrl.zip | 76557 | 2021-11-05 08:14:00 |
 exhibit998kimagea15.jpg | 38108 | 2021-11-05 08:14:00 |
| FilingSummary.xml | 1716 | 2021-11-05 08:14:00 |
| Financial_Report.xlsx | 5688 | 2021-11-05 08:14:00 |
| MetaLinks.json | 17271 | 2021-11-05 08:14:00 |
| nfg-20211104.htm | 40502 | 2021-11-05 08:14:00 |
| nfg-20211104.xsd | 1992 | 2021-11-05 08:14:00 |
| nfg-20211104_htm.xml | 11060 | 2021-11-05 08:14:00 |
| nfg-20211104_lab.xml | 24137 | 2021-11-05 08:14:00 |
| nfg-20211104_pre.xml | 12590 | 2021-11-05 08:14:00 |
| nfg-9302021xexhibit99x8k.htm | 1643555 | 2021-11-05 08:14:00 |
| R1.htm | 38593 | 2021-11-05 08:14:00 |
| report.css | 2767 | 2021-11-05 08:14:00 |
| Show.js | 1085 | 2021-11-05 08:14:00 |