Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-23-147745-index-headers.html | 2023-05-18 10:33:01 | |
| 0001193125-23-147745-index.html | 2023-05-18 10:33:01 | |
| 0001193125-23-147745.txt | 2023-05-18 10:33:01 | |
 0001193125-23-147745-xbrl.zip | 60945 | 2023-05-18 10:33:01 |
| d511228d8k.htm | 30413 | 2023-05-18 10:33:01 |
| d511228d8k_htm.xml | 3268 | 2023-05-18 10:33:01 |
| d511228dex11.htm | 146356 | 2023-05-18 10:33:01 |
| d511228dex411.htm | 101559 | 2023-05-18 10:33:01 |
| d511228dex511.htm | 10749 | 2023-05-18 10:33:01 |
| d511228dex512.htm | 16343 | 2023-05-18 10:33:01 |
| FilingSummary.xml | 2052 | 2023-05-18 10:33:01 |
| Financial_Report.xlsx | 5695 | 2023-05-18 10:33:01 |
 g511228g0518012615878.jpg | 1521 | 2023-05-18 10:33:01 |
 g511228g0518012912810.jpg | 4260 | 2023-05-18 10:33:01 |
 g511228g0518013253660.jpg | 3482 | 2023-05-18 10:33:01 |
 g511228g0518013253811.jpg | 6519 | 2023-05-18 10:33:01 |
| MetaLinks.json | 18456 | 2023-05-18 10:33:01 |
| nfg-20230518.xsd | 2871 | 2023-05-18 10:33:01 |
| nfg-20230518_lab.xml | 17235 | 2023-05-18 10:33:01 |
| nfg-20230518_pre.xml | 10827 | 2023-05-18 10:33:01 |
| R1.htm | 38095 | 2023-05-18 10:33:01 |
| report.css | 2767 | 2023-05-18 10:33:01 |
| Show.js | 1085 | 2023-05-18 10:33:01 |