Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-019747-index-headers.html | 2020-01-30 16:54:13 | |
| 0001193125-20-019747-index.html | 2020-01-30 16:54:13 | |
| 0001193125-20-019747.txt | 2020-01-30 16:54:13 | |
 0001193125-20-019747-xbrl.zip | 29937 | 2020-01-30 16:54:13 |
| d875915d8k.htm | 33171 | 2020-01-30 16:54:13 |
| d875915d8k_htm.xml | 3331 | 2020-01-30 16:54:13 |
| d875915dex99.htm | 79215 | 2020-01-30 16:54:13 |
| FilingSummary.xml | 1735 | 2020-01-30 16:54:13 |
| Financial_Report.xlsx | 5783 | 2020-01-30 16:54:13 |
 g875915ex99s10g1.jpg | 535423 | 2020-01-30 16:54:13 |
 g875915ex99s11g1.jpg | 94025 | 2020-01-30 16:54:13 |
 g875915ex99s12g1.jpg | 394666 | 2020-01-30 16:54:13 |
 g875915ex99s13g1.jpg | 538487 | 2020-01-30 16:54:13 |
 g875915ex99s14g1.jpg | 134824 | 2020-01-30 16:54:13 |
 g875915ex99s15g1.jpg | 336920 | 2020-01-30 16:54:13 |
 g875915ex99s16g1.jpg | 517047 | 2020-01-30 16:54:13 |
 g875915ex99s17g1.jpg | 581631 | 2020-01-30 16:54:13 |
 g875915ex99s18g1.jpg | 641923 | 2020-01-30 16:54:13 |
 g875915ex99s19g1.jpg | 513373 | 2020-01-30 16:54:13 |
 g875915ex99s1g1.jpg | 159352 | 2020-01-30 16:54:13 |
 g875915ex99s20g1.jpg | 679615 | 2020-01-30 16:54:13 |
 g875915ex99s21g1.jpg | 560567 | 2020-01-30 16:54:13 |
 g875915ex99s22g1.jpg | 480171 | 2020-01-30 16:54:13 |
 g875915ex99s23g1.jpg | 433144 | 2020-01-30 16:54:13 |
 g875915ex99s24g1.jpg | 522481 | 2020-01-30 16:54:13 |
 g875915ex99s25g1.jpg | 519959 | 2020-01-30 16:54:13 |
 g875915ex99s26g1.jpg | 451593 | 2020-01-30 16:54:13 |
 g875915ex99s27g1.jpg | 566347 | 2020-01-30 16:54:13 |
 g875915ex99s28g1.jpg | 544560 | 2020-01-30 16:54:13 |
 g875915ex99s29g1.jpg | 370499 | 2020-01-30 16:54:13 |
 g875915ex99s2g1.jpg | 597685 | 2020-01-30 16:54:13 |
 g875915ex99s30g1.jpg | 481792 | 2020-01-30 16:54:13 |
 g875915ex99s31g1.jpg | 612955 | 2020-01-30 16:54:13 |
 g875915ex99s32g1.jpg | 281045 | 2020-01-30 16:54:13 |
 g875915ex99s33g1.jpg | 383080 | 2020-01-30 16:54:13 |
 g875915ex99s34g1.jpg | 321152 | 2020-01-30 16:54:13 |
 g875915ex99s35g1.jpg | 357470 | 2020-01-30 16:54:13 |
 g875915ex99s36g1.jpg | 391226 | 2020-01-30 16:54:13 |
 g875915ex99s37g1.jpg | 110804 | 2020-01-30 16:54:13 |
 g875915ex99s38g1.jpg | 498384 | 2020-01-30 16:54:13 |
 g875915ex99s39g1.jpg | 455239 | 2020-01-30 16:54:13 |
 g875915ex99s3g1.jpg | 669624 | 2020-01-30 16:54:13 |
 g875915ex99s40g1.jpg | 648486 | 2020-01-30 16:54:13 |
 g875915ex99s41g1.jpg | 507999 | 2020-01-30 16:54:13 |
 g875915ex99s42g1.jpg | 425262 | 2020-01-30 16:54:13 |
 g875915ex99s43g1.jpg | 484728 | 2020-01-30 16:54:13 |
 g875915ex99s44g1.jpg | 297635 | 2020-01-30 16:54:13 |
 g875915ex99s45g1.jpg | 95791 | 2020-01-30 16:54:13 |
 g875915ex99s46g1.jpg | 351423 | 2020-01-30 16:54:13 |
 g875915ex99s47g1.jpg | 393351 | 2020-01-30 16:54:13 |
 g875915ex99s48g1.jpg | 384320 | 2020-01-30 16:54:13 |
 g875915ex99s49g1.jpg | 307492 | 2020-01-30 16:54:13 |
 g875915ex99s4g1.jpg | 378149 | 2020-01-30 16:54:13 |
 g875915ex99s50g1.jpg | 272005 | 2020-01-30 16:54:13 |
 g875915ex99s51g1.jpg | 99018 | 2020-01-30 16:54:13 |
 g875915ex99s52g1.jpg | 350551 | 2020-01-30 16:54:13 |
 g875915ex99s53g1.jpg | 358412 | 2020-01-30 16:54:13 |
 g875915ex99s54g1.jpg | 360520 | 2020-01-30 16:54:13 |
 g875915ex99s55g1.jpg | 67418 | 2020-01-30 16:54:13 |
 g875915ex99s56g1.jpg | 1123173 | 2020-01-30 16:54:13 |
 g875915ex99s57g1.jpg | 533474 | 2020-01-30 16:54:13 |
 g875915ex99s58g1.jpg | 365615 | 2020-01-30 16:54:13 |
 g875915ex99s59g1.jpg | 237213 | 2020-01-30 16:54:13 |
 g875915ex99s5g1.jpg | 576537 | 2020-01-30 16:54:13 |
 g875915ex99s60g1.jpg | 250441 | 2020-01-30 16:54:13 |
 g875915ex99s61g1.jpg | 529252 | 2020-01-30 16:54:13 |
 g875915ex99s62g1.jpg | 445986 | 2020-01-30 16:54:13 |
 g875915ex99s63g1.jpg | 502430 | 2020-01-30 16:54:13 |
 g875915ex99s64g1.jpg | 345771 | 2020-01-30 16:54:13 |
 g875915ex99s65g1.jpg | 414197 | 2020-01-30 16:54:13 |
 g875915ex99s66g1.jpg | 497502 | 2020-01-30 16:54:13 |
 g875915ex99s67g1.jpg | 362700 | 2020-01-30 16:54:13 |
 g875915ex99s6g1.jpg | 492755 | 2020-01-30 16:54:13 |
 g875915ex99s7g1.jpg | 262703 | 2020-01-30 16:54:13 |
 g875915ex99s8g1.jpg | 539956 | 2020-01-30 16:54:13 |
 g875915ex99s9g1.jpg | 498304 | 2020-01-30 16:54:13 |
| MetaLinks.json | 18378 | 2020-01-30 16:54:13 |
| nfg-20200130.xsd | 3088 | 2020-01-30 16:54:13 |
| nfg-20200130_lab.xml | 17374 | 2020-01-30 16:54:13 |
| nfg-20200130_pre.xml | 10966 | 2020-01-30 16:54:13 |
| R1.htm | 38619 | 2020-01-30 16:54:13 |
| report.css | 2767 | 2020-01-30 16:54:13 |
| Show.js | 1085 | 2020-01-30 16:54:13 |