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| 0000070145-18-000022-index.html | 2018-11-16 12:49:42 | |
| 0000070145-18-000022.txt | 2018-11-16 12:49:42 | |
 0000070145-18-000022-xbrl.zip | 575190 | 2018-11-16 12:49:42 |
| FilingSummary.xml | 60639 | 2018-11-16 12:49:42 |
| Financial_Report.xlsx | 170538 | 2018-11-16 12:49:42 |
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| nfg-20180930_cal.xml | 146516 | 2018-11-16 12:49:42 |
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| report.css | 2768 | 2018-11-16 12:49:42 |
| Show.js | 1086 | 2018-11-16 12:49:42 |