Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-206499-index-headers.html | 2020-07-31 16:32:56 | |
| 0001193125-20-206499-index.html | 2020-07-31 16:32:56 | |
| 0001193125-20-206499.txt | 2020-07-31 16:32:56 | |
 0001193125-20-206499-xbrl.zip | 12728 | 2020-07-31 16:32:56 |
| d12437d8k.htm | 25758 | 2020-07-31 16:32:56 |
| d12437d8k_htm.xml | 3274 | 2020-07-31 16:32:56 |
| d12437dex99.htm | 12296 | 2020-07-31 16:32:56 |
| FilingSummary.xml | 1726 | 2020-07-31 16:32:56 |
| Financial_Report.xlsx | 5454 | 2020-07-31 16:32:56 |
 g12437img001.jpg | 3509 | 2020-07-31 16:32:56 |
| MetaLinks.json | 18402 | 2020-07-31 16:32:56 |
| nfg-20200731.xsd | 3087 | 2020-07-31 16:32:56 |
| nfg-20200731_lab.xml | 17373 | 2020-07-31 16:32:56 |
| nfg-20200731_pre.xml | 10965 | 2020-07-31 16:32:56 |
| R1.htm | 38618 | 2020-07-31 16:32:56 |
| report.css | 2767 | 2020-07-31 16:32:56 |
| Show.js | 1085 | 2020-07-31 16:32:56 |