Form 8-K

8-K — United States Natural Gas Fund, LP

Accession: 0001104659-26-035704

Filed: 2026-03-27

Period: 2026-03-27

CIK: 0001376227

SIC: 6221 ()

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm268499d2_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm268499d2_ex99-1.htm)

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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):

March 27, 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 March 27, 2026, United States Natural Gas Fund, LP (the “Registrant”) issued its monthly account statement for the month

ended February 28, 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:     March 27, 2026

By:

/s/ Stuart P. Crumbaugh

Name:

Stuart P. Crumbaugh

Title:

Chief Financial Officer

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm268499d2_ex99-1.htm · Sequence: 2

Exhibit 99.1

United States Natural Gas Fund, LP

Monthly Account Statement

For the Month Ended February 28, 2026

Statement of Income (Loss)

Income

Realized Trading Gain (Loss) on Commodity Futures

$ 27,300,530

Realized Gain (Loss) on Swap Contracts

(26,127,466 )

Unrealized Gain (Loss) on Market Value of Commodity Futures

(128,007,486 )

Unrealized Gain (Loss) on Fair Value of Swap Contracts

(25,286,394 )

Dividend Income

789,585

Interest Income

284,640

ETF Transaction Fees

12,600

Total Income (Loss)

$ (151,033,991 )

Expenses

General Partner Management Fees

$ 193,305

Professional Fees

86,713

Brokerage Commissions

95,547

Directors' Fees and Insurance

34,237

License Fees

4,833

Total Expenses

$ 414,635

Net Income (Loss)

$ (151,448,626 )

Statement of Changes in Net Asset Value

Net Asset Value Beginning of Month 2/1/26

$ 446,339,421

Additions (22,000,000 Shares)

273,877,265

Withdrawals (10,600,000 Shares)

(133,367,528 )

Net Income (Loss)

(151,448,626 )

Net Asset Value End of Month

$ 435,400,532

Net Asset Value Per Share (37,846,103 Shares)

$ 11.50

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 February 28, 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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