United States Natural Gas Fund (UNG) furnishes August 2025 monthly account statement

Rhea-AI Filing Summary

United States Natural Gas Fund, LP filed a current report to share its monthly account statement for the month ended August 31, 2025. The statement, issued on September 29, 2025, includes a Statement of Income (Loss) and a Statement of Changes in Net Asset Value, as required under Commodity Exchange Act Rule 4.22.

The monthly account statement is furnished as Exhibit 99.1 and is also available on the sponsor’s website at www.uscfinvestments.com. The information is furnished under Regulation FD and is not treated as filed for liability purposes under Section 18 of the Securities Exchange Act of 1934 or automatically incorporated into other securities filings.

8-K Event Classification

2 items: 7.01, 9.01

2 items

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

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Accepted by SEC EDGAR 09/29/2025 - 08:52 AM Learn about SEC filing dates

FAQ

What did United States Natural Gas Fund (UNG) disclose in this 8-K?

United States Natural Gas Fund, LP disclosed that it issued its monthly account statement for the month ended August 31, 2025. The report includes a Statement of Income (Loss) and a Statement of Changes in Net Asset Value, furnished as Exhibit 99.1.

For what period does UNG’s latest monthly account statement apply?

The monthly account statement for United States Natural Gas Fund, LP covers the month ended August 31, 2025. It presents a Statement of Income (Loss) and a Statement of Changes in Net Asset Value for that period, as required under Commodity Exchange Act Rule 4.22.

When did UNG issue the monthly account statement referenced in this 8-K?

United States Natural Gas Fund, LP issued the monthly account statement on September 29, 2025. That same date is the report date in the 8-K, and the statement is attached as Exhibit 99.1 and described under the Regulation FD Disclosure item.

Where can investors find UNG’s August 31, 2025 monthly account statement?

Investors can access the monthly account statement for United States Natural Gas Fund, LP as Exhibit 99.1 to the 8-K filing. The filing also notes that the same statement is available on the Registrant’s website at www.uscfinvestments.com for public review.

Is UNG’s Exhibit 99.1 considered filed for Securities Exchange Act liability?

The 8-K states the information in Exhibit 99.1 is furnished, not filed, for purposes of Section 18 of the Securities Exchange Act of 1934. This means it is not automatically subject to Section 18 liabilities or incorporated into other securities filings unless specifically referenced.

Who signed the UNG 8-K covering the August 2025 monthly statement?

The report was signed on behalf of United States Natural Gas Fund, LP by United States Commodity Funds LLC, its general partner. The individual signatory was Stuart P. Crumbaugh, serving as Chief Financial Officer, dated September 29, 2025.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISION

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): September 29, 2025

UNITED STATES NATURAL GAS FUND, LP 

(Exact name of registrant as specified in its charter)

Delaware	001-33096	20-5576760
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, California 94596

(510) 522-9600	(Address of principal executive offices) (Zip Code)
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 (see General Instruction A.2. below):

¨ Written communication 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))

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. ¨

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

Title of each class		Trading Symbol(s)		Name of each exchange on which registered:
Shares of United States Natural Gas Fund, LP		UNG		NYSE Arca, Inc.

Item 7.01. Regulation FD Disclosure.

On September 29, 2025, United States Natural Gas Fund, LP (the “Registrant”) issued its monthly account statement for the month ended August 31, 2025, which is presented in the form of a Statement of Income (Loss) and a Statement of Changes in Net Asset Value, as required pursuant to Rule 4.22 under the Commodity Exchange Act. A copy of the monthly account statement is furnished as Exhibit 99.1 to this Current Report on Form 8-K and also can be found on the Registrant’s website at www.uscfinvestments.com. The information furnished in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in any such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit 99.1

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.

		UNITED STATES NATURAL GAS FUND, LP
		By:	United States Commodity Funds LLC, its general partner
Date:	September 29, 2025	By:	/s/ Stuart P. Crumbaugh
		Name:	Stuart P. Crumbaugh
		Title:	Chief Financial Officer