Form 8-K

8-K — United States 12 Month Natural Gas Fund, LP

Accession: 0001104659-26-050935

Filed: 2026-04-29

Period: 2026-04-29

CIK: 0001405513

SIC: 6221 ()

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm2611631d5_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2611631d5_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): April 29, 2026

UNITED

STATES 12 MONTH NATURAL GAS FUND, LP

(Exact name of registrant

as specified in its charter)

Delaware

001-34535

26-0431733

(State

or other jurisdiction

incorporation)

(Commission

File Number)

(I.R.S.

Employer

Identification No.)

1850

Mt. Diablo Boulevard, Suite 640

Walnut

Creek, California

94596

(510)

522-9600

Registrant’s telephone number,

including area code

(Address of principal

executive offices) (Zip 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:

of United States 12 Month Natural Gas Fund, LP

UNL

NYSE

Arca, Inc.

Item 7.01. Regulation FD Disclosure.

On April 29, 2026, United States 12 Month 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 12 MONTH 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: tm2611631d5_ex99-1.htm · Sequence: 2

Exhibit 99.1

United States 12 Month 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

$ (199,688 )

Unrealized Gain (Loss) on Market Value of Commodity Futures

276,638

Dividend Income

33,663

Interest Income

14,935

Total Income (Loss)

$ 125,548

Expenses

General Partner Management Fees

$ 8,310

Professional Fees

12,498

Brokerage Commissions

243

Directors' Fees and insurance

812

License fees

208

Total Expenses

$ 22,071

Net Income (Loss)

$ 103,477

Statement of Changes in Net Asset Value

Net Asset Value Beginning of Month 3/1/26

$ 15,421,426

Net Income (Loss)

103,477

Net Asset Value End of Month

$ 15,524,903

Net Asset Value Per Share (2,250,000 Shares)

$ 6.90

To the Limited Partners of United States 12 Month

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 12 Month Natural Gas Fund, LP

United States Commodity Funds LLC

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, CA 94596

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