# EDGAR Filing Document

**Accession Number:** 0000070145
**File Stem:** 0001193125-25-335374
**Filing Date:** 2025-12
**Character Count:** 9553
**Document Hash:** a9d60308970477ad20f90583f28b3ad5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-335374.hdr.sgml**: 20251229

**ACCESSION NUMBER**: 0001193125-25-335374

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 15

**CONFORMED PERIOD OF REPORT**: 20251229

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20251229

**DATE AS OF CHANGE**: 20251229

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NATIONAL FUEL GAS CO
- **CENTRAL INDEX KEY:** 0000070145
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS DISTRIBUTION [4924]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 131086010
- **STATE OF INCORPORATION:** NJ
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-03880
- **FILM NUMBER:** 251609418

**BUSINESS ADDRESS:**
- **STREET 1:** 6363 MAIN STREET
- **CITY:** WILLIAMSVILLE
- **STATE:** NY
- **ZIP:** 14221-5887
- **BUSINESS PHONE:** 716-857-7000

**MAIL ADDRESS:**
- **STREET 1:** 6363 MAIN STREET
- **STREET 2:** 6363 MAIN STREET
- **CITY:** WILLIAMSVILLE
- **STATE:** NY
- **ZIP:** 14221-5887

?xml version='1.0' encoding='ASCII'? 8-K

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### FORM 8-K

#### CURRENT REPORT

#### PURSUANT TO SECTION 13 OR 15(d)

#### OF THE SECURITIES EXCHANGE ACT OF 1934

#### Date of report (date of earliest event reported): December 29, 2025

## NATIONAL FUEL GAS COMPANY

#### (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **New Jersey** | **1-3880** | **13-1086010** |
| **(State or other jurisdiction of**<br> **incorporation or organization)** | **(Commission**<br> **File Number)** | **(IRS Employer**<br> **Identification No.)** |

---

---

| | |
|:---|:---|
| **6363 Main Street** |  |
| **Williamsville, New York** | **14221** |
| **(Address of principal executive offices)** | **(Zip Code)** |

---

(716) 857-7000

#### (Registrant's telephone number, including area code)

#### Not Applicable

#### (Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

---

| | |
|:---|:---|
| **Title of each class** | **Name of each exchange**<br> **on which registered** |
| Common Stock, par value $1.00 per share NFG | New York Stock Exchange |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

------

---

| | |
|:---|:---|
| **Item 8.01** | **Other Events.**  |

---

On December 29, 2025, National Fuel Gas Company (the "Company") filed a prospectus supplement ("Prospectus Supplement") to its effective shelf registration statement on Form S-3 (Reg. No. 333-273926) filed with the Securities and Exchange Commission (the "Commission") on August 11, 2023. The Company filed the Prospectus Supplement for the purpose of registering for resale up to 4,402,513 shares of the Company's common stock, par value $1.00 per share (the "Common Stock"), by the selling stockholders identified in the Prospectus Supplement (the "Selling Stockholders"). The Common Stock was acquired by the Selling Stockholders in the private placement financing described in the Company's Current Report on Form 8-K filed with the Commission on December 15, 2025.

In connection with the filing of the Prospectus Supplement, the Company is filing an opinion of its counsel, Lowenstein Sandler LLP, regarding the legality of the Common Stock being registered, which opinion is attached as Exhibit 5.1 to this Current Report on Form 8-K.

---

| | |
|:---|:---|
| **Item 9.01** | **Financial Statements and Exhibits.**  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Exhibits.

---

| | |
|:---|:---|
| **Exhibit<br>No.** | **Description** |
| 5.1 | [Opinion of Lowenstein Sandler LLP](d98140dex51.htm) |
| 23.1 | [Consent of Lowenstein Sandler LLP (included in Exhibit 5.1)](d98140dex51.htm) |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

---

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#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: December 29, 2025

---

| | |
|:---|:---|
| NATIONAL FUEL GAS COMPANY | NATIONAL FUEL GAS COMPANY |
| By: | /s/ Lee E. Hartz |
| Name: | Lee E. Hartz |
| Title: | General Counsel and Secretary |

---

## Exhibit 5.1

**Exhibit 5.1**![LOGO](g98140g1223085328912.jpg)

December 29, 2025

National Fuel Gas Company

6363 Main Street

Williamsville, New York 14221

Ladies and Gentlemen:

We have served as special New Jersey counsel to National Fuel Gas Company, a New Jersey corporation (the "Company"), in connection with the prospectus supplement (the "Prospectus Supplement") being filed by the Company on the date hereof pursuant to Rule 424 under the Securities Act of 1933, as amended (the "Securities Act"), with the Securities and Exchange Commission (the "Commission"), which Prospectus Supplement supplements the Registration Statement on Form S-3 (File No. 333-273926) (the "Registration Statement") filed by the Company with the Commission on August 11, 2023 and the base prospectus dated August 11, 2023 constituting a part thereof (the "Base Prospectus," together with the Prospectus Supplement, the "Prospectus"). The Prospectus Supplement relates to the potential resale from time to time by certain selling stockholders (the "Selling Stockholders"), pursuant to Rule 415 under the Securities Act, of up to 4,402,513 shares of common stock, par value $1.00 per share, of the Company (the "Shares"). We have represented the Company in connection with certain transactions on matters relating to New Jersey corporate law, but do not generally represent the Company nor act as the Company's regular outside counsel.

In connection with this opinion, we have examined originals or copies (certified or otherwise identified to our satisfaction) of (i) the Company's Restated Certificate of Incorporation, as amended, (ii) the Company's By-laws, as amended, (iii) the Registration Statement and the Prospectus and (iv) such corporate records, agreements, documents and other instruments, and such certificates or comparable documents of public officials or of officers and representatives of the Company, as we have deemed relevant and necessary as a basis for the opinion hereinafter set forth.

In such examination, we have assumed the genuineness of all signatures, the legal capacity of all natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as certified, conformed or photostatic copies, and the authenticity of the originals of such latter documents. As to certain questions of fact material to this opinion, we have relied upon certificates or comparable documents of officers and representatives of the Company and have not sought to independently verify such facts.

Based upon the foregoing and subject to the limitations, qualifications and assumptions set forth herein, we are of the opinion that the Shares have been duly authorized for issuance and are validly issued, fully paid and non-assessable.

We are members of the Bar of the State of New Jersey and the opinion expressed herein is limited to the laws of the State of New Jersey, as currently in effect, and reported judicial decisions interpreting such laws.

The opinion expressed herein is limited to the matters stated herein and no opinion is implied or may be inferred beyond the matters expressly stated herein. We undertake no obligation to supplement this opinion letter if any applicable laws change after the date hereof or if we become aware of any facts that might change the opinion expressed herein after the date hereof or for any other reason.

We hereby consent to the inclusion of this opinion letter as an exhibit to a Current Report on Form 8-K to be filed by the Company with the Commission on the date hereof, which Current Report on Form 8-K will be incorporated by reference into the Registration Statement, and to the references to our firm under the caption "Legal Matters" in the Prospectus Supplement. In giving our consent, we do not admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations thereunder.

Very truly yours,

*/s/ Lowenstein Sandler LLP*![LOGO](g98140g09e12.jpg)