Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070145-22-000003-index-headers.html | 2022-02-04 08:21:26 | |
| 0000070145-22-000003-index.html | 2022-02-04 08:21:26 | |
| 0000070145-22-000003.txt | 2022-02-04 08:21:26 | |
 0000070145-22-000003-xbrl.zip | 61840 | 2022-02-04 08:21:26 |
 exhibit998kimagea15.jpg | 38108 | 2022-02-04 08:21:26 |
| FilingSummary.xml | 1731 | 2022-02-04 08:21:26 |
| Financial_Report.xlsx | 5688 | 2022-02-04 08:21:26 |
| MetaLinks.json | 17272 | 2022-02-04 08:21:26 |
| nfg-12312021xexhibit99x8k.htm | 1201372 | 2022-02-04 08:21:26 |
| nfg-20220203.htm | 40523 | 2022-02-04 08:21:26 |
| nfg-20220203.xsd | 1992 | 2022-02-04 08:21:26 |
| nfg-20220203_htm.xml | 11076 | 2022-02-04 08:21:26 |
| nfg-20220203_lab.xml | 24137 | 2022-02-04 08:21:26 |
| nfg-20220203_pre.xml | 12590 | 2022-02-04 08:21:26 |
| R1.htm | 38595 | 2022-02-04 08:21:26 |
| report.css | 2767 | 2022-02-04 08:21:26 |
| Show.js | 1085 | 2022-02-04 08:21:26 |