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|---|---|---|
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| 0000070145-17-000015-index.html | 2017-02-03 13:45:32 | |
| 0000070145-17-000015.txt | 2017-02-03 13:45:32 | |
 0000070145-17-000015-xbrl.zip | 223152 | 2017-02-03 13:45:32 |
| FilingSummary.xml | 29669 | 2017-02-03 13:45:32 |
| Financial_Report.xlsx | 71387 | 2017-02-03 13:45:32 |
| nfg-12312016x10q.htm | 1246829 | 2017-02-03 13:45:32 |
| nfg-12312016xexhibit101.htm | 42686 | 2017-02-03 13:45:32 |
| nfg-12312016xexhibit102.htm | 42423 | 2017-02-03 13:45:32 |
| nfg-12312016xexhibit103.htm | 28471 | 2017-02-03 13:45:32 |
| nfg-12312016xexhibit12.htm | 68673 | 2017-02-03 13:45:32 |
| nfg-12312016xexhibit311.htm | 9870 | 2017-02-03 13:45:32 |
| nfg-12312016xexhibit312.htm | 9694 | 2017-02-03 13:45:32 |
| nfg-12312016xexhibit32.htm | 6065 | 2017-02-03 13:45:32 |
| nfg-12312016xexhibit99.htm | 65690 | 2017-02-03 13:45:32 |
| nfg-20161231.xml | 1628627 | 2017-02-03 13:45:32 |
| nfg-20161231.xsd | 58750 | 2017-02-03 13:45:32 |
| nfg-20161231_cal.xml | 92724 | 2017-02-03 13:45:32 |
| nfg-20161231_def.xml | 260492 | 2017-02-03 13:45:32 |
| nfg-20161231_lab.xml | 720252 | 2017-02-03 13:45:32 |
| nfg-20161231_pre.xml | 406414 | 2017-02-03 13:45:32 |
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| report.css | 2767 | 2017-02-03 13:45:32 |
| Show.js | 1410 | 2017-02-03 13:45:32 |