Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070145-21-000022-index-headers.html | 2021-08-06 07:56:55 | |
| 0000070145-21-000022-index.html | 2021-08-06 07:56:55 | |
| 0000070145-21-000022.txt | 2021-08-06 07:56:55 | |
 0000070145-21-000022-xbrl.zip | 75215 | 2021-08-06 07:56:55 |
 exhibit998kimagea15.jpg | 38108 | 2021-08-06 07:56:55 |
| FilingSummary.xml | 1716 | 2021-08-06 07:56:55 |
| Financial_Report.xlsx | 5688 | 2021-08-06 07:56:55 |
| MetaLinks.json | 17436 | 2021-08-06 07:56:55 |
| nfg-20210805.htm | 40177 | 2021-08-06 07:56:55 |
| nfg-20210805.xsd | 1992 | 2021-08-06 07:56:55 |
| nfg-20210805_htm.xml | 10996 | 2021-08-06 07:56:55 |
| nfg-20210805_lab.xml | 24137 | 2021-08-06 07:56:55 |
| nfg-20210805_pre.xml | 12590 | 2021-08-06 07:56:55 |
| nfg-6302021xexhibit99x8k.htm | 1622132 | 2021-08-06 07:56:55 |
| R1.htm | 38593 | 2021-08-06 07:56:55 |
| report.css | 2767 | 2021-08-06 07:56:55 |
| Show.js | 1085 | 2021-08-06 07:56:55 |