Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-028448-index-headers.html | 2021-02-04 11:59:01 | |
| 0001193125-21-028448-index.html | 2021-02-04 11:59:01 | |
| 0001193125-21-028448.txt | 2021-02-04 11:59:01 | |
 0001193125-21-028448-xbrl.zip | 39388 | 2021-02-04 11:59:01 |
| d121990d8k.htm | 33716 | 2021-02-04 11:59:01 |
| d121990d8k_htm.xml | 3274 | 2021-02-04 11:59:01 |
| d121990dex101.htm | 120792 | 2021-02-04 11:59:01 |
| d121990dex102.htm | 86996 | 2021-02-04 11:59:01 |
| FilingSummary.xml | 1766 | 2021-02-04 11:59:01 |
| Financial_Report.xlsx | 5455 | 2021-02-04 11:59:01 |
| MetaLinks.json | 18406 | 2021-02-04 11:59:01 |
| nfg-20210203.xsd | 3086 | 2021-02-04 11:59:01 |
| nfg-20210203_lab.xml | 17372 | 2021-02-04 11:59:01 |
| nfg-20210203_pre.xml | 10964 | 2021-02-04 11:59:01 |
| R1.htm | 38619 | 2021-02-04 11:59:01 |
| report.css | 2767 | 2021-02-04 11:59:01 |
| Show.js | 1085 | 2021-02-04 11:59:01 |