Parent Directory| Name | Size | Last Modified |
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| 0000070145-24-000010-index.html | 2024-05-02 08:27:36 | |
| 0000070145-24-000010.txt | 2024-05-02 08:27:36 | |
 0000070145-24-000010-xbrl.zip | 71281 | 2024-05-02 08:27:36 |
 exhibit998kimagea15.jpg | 38108 | 2024-05-02 08:27:36 |
| FilingSummary.xml | 1701 | 2024-05-02 08:27:36 |
| Financial_Report.xlsx | 5710 | 2024-05-02 08:27:36 |
| MetaLinks.json | 17703 | 2024-05-02 08:27:36 |
| nfg-20240501.htm | 33222 | 2024-05-02 08:27:36 |
| nfg-20240501.xsd | 1994 | 2024-05-02 08:27:36 |
| nfg-20240501_htm.xml | 2713 | 2024-05-02 08:27:36 |
| nfg-20240501_lab.xml | 21885 | 2024-05-02 08:27:36 |
| nfg-20240501_pre.xml | 12592 | 2024-05-02 08:27:36 |
| nfg-3312024xexhibit99x8k.htm | 1635206 | 2024-05-02 08:27:36 |
| R1.htm | 38111 | 2024-05-02 08:27:36 |
| report.css | 2767 | 2024-05-02 08:27:36 |
| Show.js | 1085 | 2024-05-02 08:27:36 |