Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-22-058092-index-headers.html | 2022-02-28 16:45:29 | |
| 0001193125-22-058092-index.html | 2022-02-28 16:45:29 | |
| 0001193125-22-058092.txt | 2022-02-28 16:45:29 | |
 0001193125-22-058092-xbrl.zip | 121258 | 2022-02-28 16:45:29 |
| d315567d8k.htm | 32726 | 2022-02-28 16:45:29 |
| d315567d8k_htm.xml | 3268 | 2022-02-28 16:45:29 |
| d315567dex101.htm | 656606 | 2022-02-28 16:45:29 |
| FilingSummary.xml | 1739 | 2022-02-28 16:45:29 |
| Financial_Report.xlsx | 5674 | 2022-02-28 16:45:29 |
 g315567g0226051630309.jpg | 3327 | 2022-02-28 16:45:29 |
| MetaLinks.json | 17927 | 2022-02-28 16:45:29 |
| nfg-20220228.xsd | 2878 | 2022-02-28 16:45:29 |
| nfg-20220228_lab.xml | 17236 | 2022-02-28 16:45:29 |
| nfg-20220228_pre.xml | 10828 | 2022-02-28 16:45:29 |
| R1.htm | 38581 | 2022-02-28 16:45:29 |
| report.css | 2767 | 2022-02-28 16:45:29 |
| Show.js | 1085 | 2022-02-28 16:45:29 |