NATIONAL FUEL GAS CO — DEFA14A Filings
38 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by NATIONAL FUEL GAS CO (NFG), sorted by most recent first. Each row links to the full filing on EdgarLookup. NATIONAL FUEL GAS CO has filed 38 DEFA14A documents with the SEC since 2016. To view all SEC filings by NATIONAL FUEL GAS CO, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
11-K
11-K/A
144
15-12B
25-NSE
3
3/A
35-CERT
35-CERT/A
4
4/A
424B2
424B3
424B5
424B7
5
8-A12B
8-A12B/A
8-K
8-K/A
ARS
AW
CORRESP
D
DEF 14A
DEFA14A
DEFC14A
DEFR14A
DEFS14A
DFAN14A
EFFECT
FWP
NO ACT
POS AMC
PRE 14A
PREC14A
PRER14A
PRES14A
RW
S-3
S-3/A
S-3ASR
S-3D
S-4
S-4/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC 14N
SCHEDULE 13G/A
SD
SE
U-1
U-1/A
U-12-IB
U-57
U-6B-2
U-6B-2/A
U-9C-3
U-9C-3/A
U5S
U5S/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0001193125-26-020742 | Jan 23, 2026 | — |
| DEFA14A | DEFA14A | 0001193125-25-012019 | Jan 24, 2025 | — |
| DEFA14A | DEFA14A | 0001193125-24-011083 | Jan 19, 2024 | — |
| DEFA14A | DEFA14A | 0001193125-23-011714 | Jan 20, 2023 | — |
| DEFA14A | DEFA14A | 0001193125-22-014545 | Jan 21, 2022 | — |
| DEFA14A | DEFA14A | 0001193125-14-088972 | Mar 7, 2014 | — |
| DEFA14A | DEFA14A | 0001193125-13-063977 | Feb 19, 2013 | — |
| DEFA14A | DEFA14A | 0001193125-12-080925 | Feb 27, 2012 | — |
| DEFA14A | DEFA14A | 0001193125-12-077357 | Feb 24, 2012 | — |
| DEFA14A | DEFA14A | 0000950123-10-016262 | Feb 24, 2010 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0000898822-08-000129 | Jan 24, 2008 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY DEFA14A | 0000950152-08-000430 | Jan 22, 2008 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY DEFA14A | 0000950152-08-000367 | Jan 18, 2008 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY DEFA14A | 0000950152-08-000342 | Jan 17, 2008 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0000898822-08-000074 | Jan 15, 2008 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0000898822-08-000068 | Jan 14, 2008 | — |
| DEFA14A | LIVE FILING | 0001299933-08-000218 | Jan 11, 2008 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY 8-K | 0000950152-08-000021 | Jan 2, 2008 | — |
| DEFA14A | LIVE FILING | 0001299933-07-007501 | Dec 28, 2007 | — |
| DEFA14A | LIVE FILING | 0001299933-07-007432 | Dec 21, 2007 | — |
| DEFA14A | LIVE FILING | 0001299933-07-007314 | Dec 19, 2007 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY 8-K/A / DEFA14A | 0000950152-07-009639 | Dec 14, 2007 | — |
| DEFA14A | NATIONAL FUEL GAS COMPNAY 8-K/DEFA14A | 0000950152-07-009554 | Dec 12, 2007 | — |
| DEFA14A | NATIONAL FUELO GAS COMPANY 8-K/DEFA14A | 0000950152-07-009550 | Dec 12, 2007 | — |
| DEFA14A | LIVE FILING | 0001299933-07-006587 | Nov 13, 2007 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY 8-K | 0000950152-07-008862 | Nov 9, 2007 | — |
| DEFA14A | LIVE FILING | 0001299933-07-006561 | Nov 9, 2007 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY 8-K | 0000950152-07-008766 | Nov 8, 2007 | — |
| DEFA14A | ADDITIONAL PROXY MATERIAL: NATIONAL FUEL GAS CO | 0000950123-01-506742 | Sep 27, 2001 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY | 0000950123-01-506135 | Aug 30, 2001 | — |
| DEFA14A | — | 0000070145-00-000003 | Feb 4, 2000 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY: ADDITIONAL MATERIAL | 0000950123-99-000591 | Feb 2, 1999 | — |
| DEFA14A | NATIONAL FUEL GAS COMPANY: REMINDER LETTER | 0000950123-98-001463 | Feb 13, 1998 | — |
| DEFA14A | NATIONAL FUEL GAS CO | 0000950123-98-000372 | Jan 16, 1998 | — |
| DEFA14A | FORM DEFA14A | 0000950123-97-000658 | Feb 3, 1997 | — |
| DEFA14A | ADDITIONAL DEFINITIVE PROXY SOLICITING MATERIAL | 0000950123-96-000262 | Jan 26, 1996 | — |
| DEFA14A | NATIONAL FUEL GAS CO. | 0000950123-95-000120 | Jan 27, 1995 | — |
| DEFA14A | REMINDER LETTER | 0000950123-94-000215 | Jan 28, 1994 | — |