Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070145-25-000012-index-headers.html | 2025-05-01 08:29:20 | |
| 0000070145-25-000012-index.html | 2025-05-01 08:29:20 | |
| 0000070145-25-000012.txt | 2025-05-01 08:29:20 | |
 0000070145-25-000012-xbrl.zip | 72028 | 2025-05-01 08:29:20 |
 exhibit998kimagea15.jpg | 38108 | 2025-05-01 08:29:20 |
| FilingSummary.xml | 1698 | 2025-05-01 08:29:20 |
| Financial_Report.xlsx | 5732 | 2025-05-01 08:29:20 |
| MetaLinks.json | 17702 | 2025-05-01 08:29:20 |
| nfg-20250430.htm | 33405 | 2025-05-01 08:29:20 |
| nfg-20250430.xsd | 1875 | 2025-05-01 08:29:20 |
| nfg-20250430_htm.xml | 2713 | 2025-05-01 08:29:20 |
| nfg-20250430_lab.xml | 21885 | 2025-05-01 08:29:20 |
| nfg-20250430_pre.xml | 12592 | 2025-05-01 08:29:20 |
| nfg-3312025xexhibit99x8k.htm | 1651399 | 2025-05-01 08:29:20 |
| R1.htm | 38093 | 2025-05-01 08:29:20 |
| report.css | 2767 | 2025-05-01 08:29:20 |
| Show.js | 1085 | 2025-05-01 08:29:20 |