Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-053552-index-headers.html | 2021-02-24 09:00:54 | |
| 0001193125-21-053552-index.html | 2021-02-24 09:00:54 | |
| 0001193125-21-053552.txt | 2021-02-24 09:00:54 | |
 0001193125-21-053552-xbrl.zip | 59882 | 2021-02-24 09:00:54 |
| d33294d8k.htm | 30955 | 2021-02-24 09:00:54 |
| d33294d8k_htm.xml | 3274 | 2021-02-24 09:00:54 |
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| d33294dex512.htm | 16498 | 2021-02-24 09:00:54 |
| FilingSummary.xml | 1828 | 2021-02-24 09:00:54 |
| Financial_Report.xlsx | 5453 | 2021-02-24 09:00:54 |
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 g33294dsp61.jpg | 4589 | 2021-02-24 09:00:54 |
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| MetaLinks.json | 18432 | 2021-02-24 09:00:54 |
| nfg-20210224.xsd | 3087 | 2021-02-24 09:00:54 |
| nfg-20210224_lab.xml | 17373 | 2021-02-24 09:00:54 |
| nfg-20210224_pre.xml | 10965 | 2021-02-24 09:00:54 |
| R1.htm | 38619 | 2021-02-24 09:00:54 |
| report.css | 2767 | 2021-02-24 09:00:54 |
| Show.js | 1085 | 2021-02-24 09:00:54 |