Form 8-K

8-K — United States Natural Gas Fund, LP

Accession: 0001104659-26-050932

Filed: 2026-04-29

Period: 2026-04-29

CIK: 0001376227

SIC: 6221 ()

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm2611631d2_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2611631d2_ex99-1.htm)

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2026-04-29

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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):

April 29, 2026

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 ¨

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 April 29, 2026, United States Natural Gas Fund, LP (the “Registrant”)

issued its monthly account statement for the month ended March 31, 2026, 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:     April 29, 2026

By:

/s/ Stuart P. Crumbaugh

Name:

Stuart P. Crumbaugh

Title:

Chief Financial Officer

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2611631d2_ex99-1.htm · Sequence: 2

Exhibit 99.1

United States Natural Gas Fund, LP

Monthly Account Statement

For the Month Ended March 31, 2026

Statement of Income (Loss)

Income

Realized Trading Gain (Loss) on Commodity Futures

$ 5,180,340

Realized Gain (Loss) on Swap Contracts

(23,678,615 )

Unrealized Gain (Loss) on Market Value of Commodity Futures

1,120,029

Unrealized gain (loss) on Fair Value of Swap Contracts

25,286,783

Dividend Income

923,391

Interest Income

362,035

ETF Transaction Fees

8,050

Total Income (Loss)

$ 9,202,013

Expenses

General Partner Management Fees

$ 239,127

Professional Fees

96,509

Brokerage Commissions

86,147

Directors' Fees and insurance

11,746

License fees

5,978

Total Expenses

$ 439,507

Net Income (Loss)

$ 8,762,506

Statement of Changes in Net Asset Value

Net Asset Value Beginning of Month 3/1/26

$ 435,400,532

Additions (6,400,000 Shares)

77,629,018

Withdrawals (6,300,000 Shares)

(77,950,922 )

Net Income (Loss)

8,762,506

Net Asset Value End of Month

$ 443,841,134

Net Asset Value Per Share (37,946,103 Shares)

$ 11.70

To the Limited Partners of United States Natural

Gas Fund, LP:

Pursuant to Rule 4.22(h) under the Commodity Exchange

Act, the undersigned represents that, to the best of his knowledge and belief, the information contained in the Account Statement for

the month ended March 31, 2026 is accurate and complete.

/s/ Stuart P. Crumbaugh

Stuart P. Crumbaugh

Chief Financial Officer

United States Commodity Funds LLC, General Partner

of United States Natural Gas Fund, LP

United States Commodity Funds LLC

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, CA 94596

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