Groowe Groowe BETA / Newsroom
⏱ News is delayed by 15 minutes. Sign in for real-time access. Sign in

Form 8-K

sec.gov

8-K — United States Natural Gas Fund, LP

Accession: 0002071876-26-000067

Filed: 2026-03-27

Period: 2026-03-27

CIK: 0001376227

SIC: 6221 ()

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — i26129_ung-8k.htm (Primary)

EX-99.1 (i26129_ex99-1.htm)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: i26129_ung-8k.htm · Sequence: 1

UNG 8-K

false

0001376227

0001376227

2026-03-27

2026-03-27

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

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): 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

(Address of principal executive offices) (Zip Code)

(510) 522-9600

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 March 27, 2026, United States Natural Gas Fund, LP (the “Registrant”),

issued its annual financial statements for the year ended December 31, 2025, as required pursuant to Rule 4.22 under the Commodity Exchange

Act. A copy of the annual financial statements 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    Annual Financial Statements of the Registrant for the year ended December 31, 2025.

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

EX-99.1

Filename: i26129_ex99-1.htm · Sequence: 2

Exhibit

99.1

UNITED

STATES COMMODITY FUNDS LLC

General

Partner of the United States Natural Gas Fund, LP

March 27, 2026

Dear United

States Natural Gas Fund, LP Investor,

Enclosed with

this letter is your copy of the 2025 financial statements for the United States Natural Gas Fund, LP (ticker symbol “UNG”).

We have mailed this statement to all investors in UNG who held shares as of December 31, 2025 to satisfy our annual reporting requirement

under federal commodities laws. In addition, the current United States Commodity Funds LLC (“USCF”) Privacy Policy applicable

to UNG is available on USCF’s website at www.uscfinvestments.com.

Additional information concerning UNG’s 2025 results may be found by referring to UNG’s Annual Report on Form 10-K (the “Form

10-K”), which has been filed with the U.S. Securities and Exchange Commission (the “SEC”). You may obtain a copy of

the Form 10-K by going to the SEC’s website at www.sec.gov,

or by going to USCF’s website at www.uscfinvestments.com.

You may also call USCF at 1-800-920-0259 to speak to a representative

and request additional material, including a current UNG Prospectus.

USCF is the

general partner of UNG. USCF is also the general partner or sponsor and operator of several other commodity-based exchange-traded funds.

These other funds are referred to in the attached financial statements and include:

United

States Oil Fund, LP

(ticker

symbol: USO)

United

States Commodity Index Fund

(ticker

symbol: USCI)

United

States 12 Month Oil Fund, LP

(ticker

symbol: USL)

United

States Copper Index Fund

(ticker

symbol: CPER)

United

States Gasoline Fund, LP

(ticker

symbol: UGA)

United

States 12 Month Natural Gas Fund, LP

(ticker

symbol: UNL)

United

States Brent Oil Fund, LP

(ticker

symbol: BNO)

Information

about these other funds is contained within the Form 10-K as well as in the current UNG Prospectus. Investors in UNG who wish to receive

additional information about these other funds may do so by going to the USCF website at www.uscfinvestments.com.

You may also

call USCF at 1-800-920-0259 to request additional information.

Thank you for

your continued interest in UNG.

Regards,

/s/

John P. Love

John P. Love

President and Chief Executive

Officer

United States Commodity Funds

LLC

*This letter

is not an offer to buy or sell securities. Investment in UNG or any other funds should be made only after reading such fund’s prospectus.

Please consult the relevant prospectus for a description of the risks and expenses involved in any such investment.

UNITED

STATES NATURAL GAS FUND, LP

FINANCIAL

STATEMENTS

For the years

ended December 31, 2025, 2024 and 2023

AFFIRMATION

OF THE COMMODITY POOL OPERATOR

To the Shareholders

of the 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 this Annual Report for the years ended December 31, 2025, 2024 and 2023 is accurate and complete.

By United States Commodity Funds

LLC, as General Partner

By:

/s/

John P. Love

John P. Love

President &

Chief Executive Officer of United States

Commodity Funds LLC

On behalf of

United States Natural Gas Fund, LP

REPORT

OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Partners of

United States

Natural Gas Fund, LP

Opinions

on the Financial Statements and Internal Control over Financial Reporting

We have audited

the accompanying statements of financial condition, including the schedules of investments, of United States Natural Gas Fund, LP (the

“Fund”) as of December 31, 2025 and 2024, the related statements of operations, changes in partners’ capital, and cash

flows for each of the years in the three-year period ended December 31, 2025, and the related notes (collectively referred to as the

“financial statements”). We also have audited the Fund’s internal control over financial reporting as of December 31,

2025, based on criteria established in Internal Control – Integrated

Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”).

In our opinion,

the financial statements referred to above present fairly, in all material respects, the financial position of the Fund as of December

31, 2025 and 2024, the results of its operations, changes in partners’ capital, and its cash flows for each of the years in the

three-year period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.

Also, in our opinion, the Fund maintained, in all material respects, effective internal control over financial reporting as of December

31, 2025, based on criteria established in Internal Control – Integrated

Framework (2013) issued by COSO.

Basis

for Opinions

The Fund’s

management is responsible for these financial statements, for maintaining effective internal control over financial reporting, and for

its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s

Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Fund’s

financial statements and an opinion on the Fund’s internal control over financial reporting based on our audits. We are a public

accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required

to be independent with respect to the Fund in accordance with the U.S. federal securities laws and the applicable rules and regulations

of the Securities and Exchange Commission and the PCAOB.

We conducted

our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable

assurance about whether the financial statements are free of material misstatements, whether due to error or fraud, and whether effective

internal control over financial reporting was maintained in all material respects.

Our audits of

the financial statements included performing procedures to assess the risks of material misstatement of the financial statements, whether

due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence

regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used

and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. Our audit of

internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing

the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based

on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe

that our audits provide a reasonable basis for our opinions.

Definition

and Limitations of Internal Control over Financial Reporting

A company’s

internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial

reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.

A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance

of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company;

(2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance

with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with

authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection

of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its

inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation

of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that

the degree of compliance with the policies or procedures may deteriorate.

Critical

Audit Matters

Critical audit

matters are matters arising from the current period audit of the financial statements that were communicated or required to be communicated

to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved

especially challenging, subjective, or complex judgments. We determined that there are no critical audit matters.

We have served

as the Fund’s auditor since 2023.

COHEN & COMPANY,

LTD.

Philadelphia, Pennsylvania

February 27,

2026

United

States Natural Gas Fund, LP

Statements

of Financial Condition

At

December 31, 2025 and December 31, 2024

December 31,

2025

December 31,

2024

Assets

Cash and cash equivalents (at cost $438,463,080 and $593,538,786, respectively) (Notes 2 and 5)

$ 438,463,080 (a)

$ 593,538,786 (a)

Equity in trading accounts:

Cash and cash equivalents (at cost $138,387,589 and $83,587,988, respectively)

138,387,589

83,587,988

Unrealized gain (loss) on open commodity futures contracts

928,964

80,696,279

Unrealized gain (loss) on open swap contracts

(907 )

(2,205 )

Due from Broker

29,236,970

Dividends receivable

1,018,940

1,713,757

Interest receivable

624,892

1,137,742

Prepaid insurance

67,288

30,021

Prepaid registration fees

85,090

Total Assets

$ 579,489,846

$ 790,024,428

Liabilities and Partners’ Capital

Payable due to Broker

$ 27,010,990

$ 44,227,463

General Partner management fees payable (Note 3)

287,984

412,567

Professional fees payable

1,522,531

1,336,303

Brokerage commissions payable

171,877

Directors’ fees payable

18,185

22,376

License fees payable

9,356

18,419

Registration fees payable

472

Total Liabilities

28,849,518

46,189,005

Commitments and Contingencies (Notes 3, 4 & 5)

Partners’ Capital

General Partners

Limited Partners

550,640,328

743,835,423

Total Partners’ Capital

550,640,328

743,835,423

Total Liabilities and Partners’ Capital

$ 579,489,846

$ 790,024,428

Limited Partners’ shares outstanding

45,146,103

44,146,103

Net asset value per share

$ 12.20

$ 16.85

Market value per share

$ 12.26

$ 16.81

(a) A

portion of this amount is designated to meet daily Futures Commission Merchants’ margin

requirements.

See

accompanying notes to financial statements.

United

States Natural Gas Fund, LP

Schedule

of Investments

At

December 31, 2025

Notional

Amount

Number of

Contracts

Fair

Value/Unrealized

Gain (Loss) on

Open

Commodity

Contracts

% of Partners’

Capital

Open Commodity Futures Contracts—Long

United States Contracts

NYMEX Natural Gas Futures NG February 2026 contracts, expiring January 2026*

$ 433,392,416

11,783

$ 928,964

0.17

Shares/Principal

Amount

Market Value

% of Partners’

Capital

Cash Equivalents

United States Money Market Funds

Dreyfus Institutional Preferred Government Money Market Fund—Institutional Shares, 3.71%#

130,000,000

$ 130,000,000

23.61

Morgan Stanley Institutional Liquidity Funds - Government Portfolio—Institutional Shares, 3.69%#

140,950,000

140,950,000

25.60

Total United States Money Market Funds

$ 270,950,000

49.21

Open

OTC Commodity Swap Contracts

Fund Receives from

Counterparty

Fund Pays

Counterparty

Counterparty

Payment

Frequency

Expiration

Date

Notional

Amount

Fair Value/Open

Commodity

Swap

Contracts

Upfront

Payments/

(Premiums

Received)

Unrealized Gain

(Loss) on

Commodity

Swap

Contracts(a)

Scotia SNOVNG1 08292025(b)

0.17 %

Scotia Bank

Monthly

02/27/2026

$ 57,218,551

$ 57,218,284

$ —

$ (267 )

SOC GEN SGIXCNG1 09262025Index(b)

0.40 %

Societe Generale

Monthly

03/26/2026

59,144,114

$ 59,143,474

(640 )

Total Open OTC Commodity Swap Contracts^

$ 116,362,665

$ 116,361,758

$ —

$ (907 )

(a) Reflects

the value at reset date of December 31, 2025.

(b) Custom

index comprised of a basket of underlying instruments

* Collateral

amounted to $97,288,181 on open commodity futures contracts.

^ Collateral amounted to $41,099,408

on open OTC commodity swap contracts.

# Reflects

the 7-day yield at December 31, 2025.

See

accompanying notes to financial statements.

United

States Natural Gas Fund, LP

Schedule

of Investments

At

December 31, 2024

Notional

Amount

Number of

Contracts

Fair

Value/Unrealized

Gain (Loss) on

Open

Commodity

Contracts

% of Partners’

Capital

Open Commodity Futures Contracts—Long

United States Contracts

NYMEX Natural Gas Futures NG February 2025 contracts, expiring January 2025*

$ 444,599,191

14,459

$ 80,696,279

10.85

Shares/Principal

Amount

Market Value

% of Partners’

Capital

Cash Equivalents

United States Treasury Obligations

U.S. Treasury Bills:

4.39%, 2/27/2025

$ 11,500,000

$ 11,420,156

1.54

United States Money Market Funds

Morgan Stanley Institutional Liquidity Funds—Government Portfolio—Institutional Shares, 4.43%#

520,950,000

520,950,000

70.04

Total United States Money Market Funds

520,950,000

70.04

Total Cash Equivalents

$ 532,370,156

71.57

Open

OTC Commodity Swap Contracts

Fund Receives from

Counterparty

Fund Pays

Counterparty

Counterparty

Payment

Frequency

Expiration

Date

Notional

Amount

Fair Value/Open

Commodity

Swap

Contracts

Upfront

Payments/

(Premiums

Received)

Unrealized Gain

(Loss) on

Commodity

Swap

Contracts(a)

Scotia SNOVNG1 08202024(b)

0.17 %

Scotia Bank

Monthly

02/28/2025

$ 107,293,519

$ 107,292,519

$ —

$ (1,000 )

SOC GEN SGIXCNG1 09272024Index(b)

0.40 %

Societe Generale

Monthly

03/27/2025

111,366,471

111,365,266

(1,205 )

Total Open OTC Commodity Swap Contracts^

$ 218,659,990

$ 218,657,785

$ —

$ (2,205 )

(a) Reflects

the value at reset date of December 31, 2024.

(b) Custom

index comprised of a basket of underlying instruments.

* Collateral

amounted to $46,487,832 on open commodity futures contracts.

^ Collateral amounted to $37,100,156

on open OTC commodity swap contracts.

# Reflects

the 7-day yield at December 31, 2024.

See

accompanying notes to financial statements.

United

States Natural Gas Fund, LP

Statements

of Operations

For

the years ended December 31, 2025, 2024 and 2023

Year ended

December 31,

2025

Year ended

December 31,

2024

Year ended

December 31,

2023

Income

Gain (loss) on trading of commodity futures and swap contracts:

Realized gain (loss) on closed commodity futures contracts

$ 138,311,471

$ (47,713,339 )

$ (762,934,486 )

Realized gain (loss) on closed OTC commodity swap

contracts

(37,813,013 )

58,360,050

(144,572,961 )

Change in unrealized gain (loss) on open commodity futures contracts

(79,767,315 )

40,623,818

184,838,398

Change in unrealized gain (loss) on open OTC commodity swap contracts

1,298

(14,905,416 )

14,903,211

Dividend income

11,776,075

7,538,377

11,394,690

Interest income

7,553,671

31,116,762

35,270,729

ETF transaction fees

266,150

244,000

355,000

Total Income (Loss)

$ 40,328,337

$ 75,264,252

$ (660,745,419 )

Expenses

General Partner management fees (Note 3)

$ 3,120,492

$ 4,888,033

$ 6,252,127

Professional fees

1,561,625

2,230,204

1,179,661

Brokerage commissions

1,046,801

2,556,712

2,696,598

Directors’ fees and insurance

207,297

277,838

220,736

License fees

78,012

122,200

156,303

Registration fees

85,562

43,490

Total Expenses

$ 6,099,789

$ 10,118,477

$ 10,505,425

Net Income (Loss)

$ 34,228,548

$ 65,145,775

$ (671,250,844 )

Net Income (Loss) per limited partner share

$ (4.65 )*

$ (3.51 )

$ (36.54 )#

Net Income (Loss) per weighted average limited partner share

$ 1.00

$ 1.25

$ (17.87 )#

Weighted average limited partner shares outstanding

34,121,445

52,017,964

37,572,585 #

# On

January 23, 2024 there was a 1 - for - 4 reverse share split. The Statement of Operations

have been adjusted for the periods shown to reflect the 1 - for - 4 reverse share split on

a retroactive basis.

* The

amount shown for a share outstanding throughout the year may not agree with the change in

the aggregate gains and losses for the year because of the timing of sales and repurchases

of the Fund’s shares in relation to fluctuating market values for the Fund.

See

accompanying notes to financial statements.

United

States Natural Gas Fund, LP

Statements

of Changes in Partners’ Capital

For

the years ended December 31, 2025, 2024 and 2023

Limited Partners*

Year ended

December 31,

2025

Year ended

December 31,

2024

Year ended

December 31,

2023

Balances at beginning of year

$ 743,835,423

$ 973,854,332

$ 429,338,476

Addition of 103,700,000, 112,125,000 and 110,175,000# partnership shares, respectively

1,507,961,835

1,688,818,197

3,295,750,093

Redemption of (102,700,000), (115,800,044) and (69,900,000)# partnership shares, respectively

(1,735,385,478 )

(1,983,982,881 )

(2,079,983,393 )

Net income (loss)

34,228,548

65,145,775

(671,250,844 )

Balances at end of year

$ 550,640,328

$ 743,835,423

$ 973,854,332

* General

Partners’ shares outstanding and capital for the periods presented were zero.

# On

January 23, 2024 there was a 1 - for - 4 reverse share split. The Statement of Changes in

Partners’ Capital have been adjusted for the periods shown to reflect the 1 - for -

4 reverse share split on a retroactive basis.

See

accompanying notes to financial statements.

United

States Natural Gas Fund, LP

Statements

of Cash Flows

For

the years ended December 31, 2025, 2024 and 2023

Year ended

December 31,

2025

Year ended

December 31,

2024

Year ended

December 31,

2023

Cash Flows from Operating Activities:

Net income (loss)

$ 34,228,548

$ 65,145,775

$ (671,250,844 )

Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:

Change in unrealized (gain) loss on open commodity futures contracts

79,767,315

(40,623,818 )

(184,838,398 )

Change in unrealized (gain) loss on open swap contracts

(1,298 )

14,905,416

(14,903,211 )

(Increase) decrease in dividends receivable

694,817

(1,397,319 )

792,123

(Increase) decrease in interest receivable

512,850

2,461,516

(3,264,454 )

(Increase) decrease in prepaid insurance

(37,267 )

11,708

(25,105 )

(Increase) decrease in prepaid registration fees

85,090

(85,090 )

(Increase) decrease in ETF transaction fees receivable

1,000

(Increase) decrease in receivable due from Broker

29,236,970

(29,236,970 )

Increase (decrease) in payable due to Broker

(17,216,473 )

35,959,227

8,268,236

Increase (decrease) in General Partner management fees payable

(124,583 )

(88,068 )

260,187

Increase (decrease) in professional fees payable

186,228

492,128

(78,568 )

Increase (decrease) in brokerage commissions payable

(171,877 )

11,825

Increase (decrease) in directors’ fees payable

(4,191 )

1,255

13,065

Increase (decrease) in license fees payable

(9,063 )

(7,275 )

19,965

Increase decrease in registration fees payable

472

Net cash provided by (used in) operating activities

127,147,538

47,539,485

(864,995,179 )

Cash Flows from Financing Activities:

Addition of partnership shares

1,507,961,835

1,688,818,197

3,310,238,894

Redemption of partnership shares

(1,735,385,478 )

(1,988,055,677 )

(2,075,910,597 )

Net cash provided by (used in) financing activities

(227,423,643 )

(299,237,480 )

1,234,328,297

Net Increase (Decrease) in Cash and Cash Equivalents

(100,276,105 )

(251,697,995 )

369,333,118

Total Cash, Cash Equivalents and Equity in Trading Accounts, beginning of year

677,126,774

928,824,769

559,491,651

Total Cash, Cash Equivalents and Equity in Trading Accounts, end of year

$ 576,850,669

$ 677,126,774

$ 928,824,769

Components of Cash, Cash Equivalents and Equity in Trading Accounts:

Cash and cash equivalents

$ 438,463,080

$ 593,538,786

$ 678,015,896

Equity in Trading Accounts:

Cash and cash equivalents

138,387,589

83,587,988

250,808,873

Total Cash, Cash Equivalents and Equity in Trading Accounts

$ 576,850,669

$ 677,126,774

$ 928,824,769

See

accompanying notes to financial statements.

United

States Natural Gas Fund, LP

Notes

to Financial Statements

For

the years ended December 31, 2025, 2024 2023

NOTE 1 —

ORGANIZATION AND BUSINESS

The United States

Natural Gas Fund, LP (“UNG”) was organized as a limited partnership under the laws of the state of Delaware on September

11, 2006. UNG is a commodity pool that issues limited partnership interests (“shares”) traded on the NYSE Arca, Inc. (the

“NYSE Arca”). Prior to trading on the NYSE Arca, UNG’s shares traded on the American Stock Exchange (the “AMEX”)

under the symbol “UNG” since its initial public offering on April 18, 2007. UNG will continue in perpetuity, unless terminated

sooner upon the occurrence of one or more events as described in its Fifth Amended and Restated Agreement of Limited Partnership dated

as of December 15, 2017 (the “LP Agreement”), which grants full management and control to its general partner, United States

Commodity Funds LLC (“USCF”).

The investment

objective of UNG is for the daily changes in percentage terms of its shares’ per share net asset value (“NAV”)

to reflect the daily changes in percentage terms of the price of natural gas delivered at the Henry Hub, Louisiana, as measured

by the daily changes in the price of a specified short-term futures contract called the “Benchmark Futures Contract”, plus

interest earned on UNG’s collateral holdings, less UNG’s expenses. The Benchmark Futures Contract is the futures contract

on natural gas as traded on the New York Mercantile Exchange (the “NYMEX”) that is the near month contract to expire,

except when the near month contract is within two weeks of expiration, in which case it will be measured by the futures contract

that is the next month contract to expire. UNG seeks to achieve its investment objective by investing so that the average daily

percentage change in UNG’s NAV for any period of 30 successive valuation days will be within plus/minus ten percent (10%) of the

average daily percentage change in the price of the Benchmark Futures Contract over the same period. As a result, investors should be

aware that UNG would meet its investment objective even if there are significant deviations between changes in its daily NAV and changes

in the daily price of the Benchmark Futures Contract, provided that the average daily percentage change in UNG’s NAV over 30 successive

valuation days is within plus/minus ten percent (10)% of the average daily percentage change in the price of the Benchmark Futures Contracts

over the same period.

UNG seeks to

achieve its investment objective by investing primarily in futures contracts for natural gas that are traded on the NYMEX, ICE Futures

Europe and ICE Futures U.S. (together, “ICE Futures”) or other U.S. and foreign exchanges (collectively, “Futures Contracts”)

and to a lesser extent, in order to comply with regulatory requirements, risk mitigation measures (including those that may be taken

by UNG, UNG’s futures commission merchants (“FCMs”), counterparties or other market participants), liquidity requirements,

or in view of market conditions, other natural gas-related investments such as cash settled options on Futures Contracts, forward contracts

for natural gas, cleared swap contracts, and non-exchange traded (“over-the-counter” or “OTC”) transactions that

are based on the price of natural gas, crude oil and other petroleum-based fuels, as well as futures contracts for crude oil, heating

oil, gasoline, and other petroleum-based fuels, Futures Contracts and indices based on the foregoing (collectively, “Other Natural

Gas-Related Investments”). Market conditions that USCF currently anticipates could cause UNG to invest in Other Natural Gas-Related

Investments include, but are not limited to, those allowing UNG to obtain greater liquidity or to execute transactions with more favorable

pricing. For convenience and unless otherwise specified, Futures Contracts and Other Natural Gas-Related Investments collectively are

referred to as “Natural Gas Interests” in the notes to the financial statements. As of December 31, 2025, UNG held 11,783

Futures Contracts traded on the NYMEX and did not hold any Natural Gas Futures Contracts traded on the ICE Futures US.

In addition,

USCF believes that market arbitrage opportunities will cause daily changes in UNG’s share price on the NYSE Arca on a percentage

basis to closely track daily changes in UNG’s per share NAV on a percentage basis. USCF further believes that the daily changes

in prices of the Benchmark Futures Contract have historically tracked the daily changes in the spot price of natural gas. USCF believes

that the net effect of these relationships will be that the daily changes in the price of UNG’s shares on the NYSE Arca on a percentage

basis, plus interest earned on UNG’s collateral holdings, less UNG’s expenses.

Investors should

be aware that UNG’s investment objective is not for its NAV or market price of shares to equal, in dollar terms, the spot price

of natural gas or any particular futures contract based on natural gas, nor is UNG’s investment objective for the percentage change

in its NAV to reflect the percentage change of the price of any particular futures contract as measured over a time period greater than

one day. This is because natural market forces called contango and backwardation may impact and have impacted the total return on an

investment in UNG’s shares during the past year relative to a hypothetical direct investment in natural gas and, in the future,

it is likely that the relationship between the market price of UNG’s shares and the changes in the spot prices of natural gas will

continue to be impacted by contango and backwardation. (It is important to note that the disclosure above ignores the potential costs

associated with physically owning and storing natural gas, which could be substantial.)

UNG commenced

investment operations on April 18, 2007 and has a fiscal year ending on December 31. USCF is responsible for the management of UNG. USCF

is a member of the National Futures Association (the “NFA”) and became registered as a commodity pool operator with the Commodity

Futures Trading Commission (the “CFTC”) effective December 1, 2005 and a swaps firm on August 8, 2013. USCF is also the general

partner of the United States Oil Fund, LP (“USO”), the United States 12 Month Oil Fund, LP (“USL”), the United

States Gasoline Fund, LP (“UGA”), the United States 12 Month Natural Gas Fund, LP (“UNL”) and the United States

Brent Oil Fund, LP (“BNO”).

USCF is also

the sponsor of the United States Commodity Index Funds Trust (“USCIFT”), a Delaware statutory trust and each of its series:

the United States Commodity Index Fund (“USCI”) and the United States Copper Index Fund (“CPER”).

On January 23,

2024, after the close of trading on the NYSE Arca, UNG effected a 1 - for - 4 reverse share split and post - split shares of UNG began

trading on January 24, 2024. As a result of the reverse share split, every four pre-split shares of UNG were automatically exchanged

for one post - split share. As of December 31, 2023, prior to the effect of the reverse split, there were 191,284,588 shares of UNG issued

and outstanding, representing a per share NAV of $5.09. As of December 31, 2023, after the effect of the reverse share split, the number

of issued and outstanding shares of UNG decreased to 47,821,147, not accounting for fractional shares, and the per share NAV increased

to $20.36. In connection with the reverse share split, the CUSIP number for UNG’s shares changed to 912318409. UNG’s ticker

symbol, “UNG,” remains the same. The financial statements have been adjusted to reflect the effect of the reverse share split

on a retroactive basis.

BNO, UGA, UNL,

USL, USO, USCI and CPER are referred to collectively herein as the “Related Public Funds.”

UNG issues shares

to certain authorized purchasers (“Authorized Participants”) by offering baskets consisting of 100,000 shares (“Creation

Baskets”) through ALPS Distributors, Inc., as the marketing agent (the “Marketing Agent”). The purchase price

for a Creation Basket is based upon the NAV of a share calculated shortly after the close of the core trading session on the NYSE Arca

on the day the order to create the basket is properly received.

Authorized Participants

pay UNG a $350 transaction fee for each order they place to create one or more Creation Baskets or to redeem one or more baskets (“Redemption

Baskets”), consisting of 100,000 shares. Shares may be purchased or sold on a nationally recognized securities exchange in smaller

increments than a Creation Basket or Redemption Basket. Shares purchased or sold on a nationally recognized securities exchange are not

purchased or sold at the per share NAV of UNG but rather at market prices quoted on such exchange.

In April 2007,

UNG initially registered 30,000,000 shares on Form S-1 with the U.S. Securities and Exchange Commission (the “SEC”).

On April 18, 2007, UNG listed its shares on the AMEX under the ticker symbol “UNG” and switched to trading on the NYSE

Arca under the same ticker symbol on November 25, 2008. On that day, UNG established its initial per share NAV by setting the price

at $50.00 and issued 200,000 shares in exchange for $10,001,000. UNG also commenced investment operations on April 18, 2007, by

purchasing Natural Gas Futures Contracts traded on the NYMEX based on natural gas. On April 26, 2022, the SEC declared effective a registration

statement filed by UNG that registered an unlimited number of shares. As a result, UNG has an unlimited number of shares that can be

issued in the form of Creation Baskets.

NOTE 2 —

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis

of Presentation

The financial

statements have been prepared in conformity with U.S. GAAP as detailed in the Financial Accounting Standards Board’s (“FASB”)

Accounting Standards Codification. UNG is an investment company for accounting purposes and follows the accounting and reporting

guidance in FASB Topic 946.

Revenue

Recognition

Commodity futures

contracts, swap and forward contracts, physical commodities and related options are recorded on the trade date. All such transactions

are recorded on the identified cost basis and marked to market daily. Unrealized gains or losses on open contracts are reflected in the statements

of financial condition and represent the difference between the original contract amount and the market value (as determined by exchange

settlement prices for futures contracts and related options and cash dealer prices at a predetermined time for swap and forward contracts,

physical commodities, and their related options) as of the last business day of the year or as of the last date of the financial

statements. Changes in the unrealized gains or losses between periods are reflected in the statements of operations. UNG earns income

on funds held at the custodian or FCMs at prevailing market rates earned on such investments.

Income

Taxes

UNG is not

subject to federal income taxes; each partner reports his/her allocable share of income, gain, loss, deductions or credits on his/her

own income tax return.

In accordance

with U.S. GAAP, UNG is required to determine whether a tax position is more likely than not to be sustained upon examination by the applicable

taxing authority, including resolution of any tax related appeals or litigation processes, based on the technical merits of the position.

UNG files an income tax return in the U.S. federal jurisdiction and may file income tax returns in various U.S. states. UNG

is not subject to income tax return examinations by major taxing authorities for years before 2021. The tax benefit recognized

is measured as the largest amount of benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.

De-recognition of a tax benefit previously recognized results in UNG recording a tax liability that reduces net assets. However,

UNG’s conclusions regarding this policy may be subject to review and adjustment at a later date based on factors including, but

not limited to, on-going analysis of and changes to tax laws, regulations and interpretations thereof. UNG recognizes interest accrued

related to unrecognized tax benefits and penalties related to unrecognized tax benefits in income tax fees payable, if assessed. No interest

expense or penalties have been recognized as of and for the year ended December 31, 2025.

Creations

and Redemptions

Authorized Participants may

purchase Creation Baskets or redeem Redemption Baskets only in blocks of 100,000 shares at a price equal to the NAV of the shares

calculated shortly after the close of the core trading session on the NYSE Arca on the day the order is placed.

UNG receives

or pays the proceeds from shares sold or redeemed within two business days after the trade date of the purchase or redemption.

The amounts due from Authorized Participants are reflected in UNG’s statements of financial condition as receivable for shares

sold and amounts payable to Authorized Participants upon redemption are reflected as payable for shares redeemed.

Authorized Participants

pay UNG a $350 transaction fee for each order placed to create one or more Creation Baskets or to redeem one or more Redemption Baskets.

Partnership Capital

and Allocation of Partnership Income and Losses

Profit or loss

shall be allocated among the partners of UNG in proportion to the weighted-average number of shares each partner holds as of the close

of each month. USCF may revise, alter or otherwise modify this method of allocation as described in the LP Agreement.

Calculation

of Per Share NAV

UNG’s

per share NAV is calculated on each NYSE Arca trading day by taking the current market value of its total assets, subtracting any liabilities

and dividing that amount by the total number of shares outstanding. UNG uses the closing price for the contracts on the relevant exchange

on that day to determine the value of contracts held on such exchange.

Net

Income (Loss) Per Share

Net income (loss)

per share is the difference between the per share NAV at the beginning of each period and at the end of each period. The weighted average

number of shares outstanding was computed for purposes of disclosing net income (loss) per weighted average share. The weighted average

shares are equal to the number of shares outstanding at the end of the period, adjusted proportionately for shares added and redeemed

based on the amount of time the shares were outstanding during such period. There were no shares held by USCF at December 31, 2025.

Offering

Costs

Offering costs

incurred in connection with the registration of additional shares after the initial registration of shares are borne by UNG. These

costs include registration fees paid to regulatory agencies and all legal, accounting, printing and other expenses associated with such

offerings. These costs are accounted for as a deferred charge and thereafter amortized to expense over twelve months on a straight-line

basis or a shorter period if warranted.

Cash

Equivalents

Cash equivalents

include money market funds and overnight deposits or time deposits with original maturity dates of three months or less.

Use

of Estimates

The preparation

of financial statements in conformity with U.S. GAAP requires USCF to make estimates and assumptions that affect the reported amount

of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported

amounts of the revenue and expenses during the reporting period. Actual results may differ from those estimates and assumptions.

Other

On January 23,

2024, after the close of the NYSA Arca, UNG effected a 1-for-4 reverse share split and post-split shares of UNG began trading on January

24, 2024. The unaudited financial information in this annual report on Form 10-K gives effect to the reverse share split and the post-split

shares as if they had been completed on January 1, 2024.

The audited

financial information and pro forma financial information, as well as the historical financial information as of and for the year

ended December 31, 2023, was derived from UNG’s historical financial statements. The financial statements in this annual report

on Form 10-K are presented in accordance with Accounting Standards Codification 260 for purposes of presenting the 1-for-4 reverse

split on historical basis for all periods reported.

Recently

Issued Accounting Pronouncement

UNG adopted

FASB Accounting Standards Update 2023-07, Segment Reporting (Topic 280) - Improvements to Reportable Segment Disclosures (“ASU

2023-07”). UNG operates in one segment. The segment derives its revenues from investments made in accordance with the defined investment

strategy of UNG, as prescribed in UNG’s prospectus. The Chief Operating Decision Maker (“CODM”) is the Chief Executive

Officer (“CEO”) of the general partner, USCF. The CODM monitors the operating results of the Fund as part of making decisions

for allocating resources and evaluating performance.

NOTE 3 —

FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS

USCF

Management Fee

Under the LP

Agreement, USCF is responsible for investing the assets of UNG in accordance with the objectives and policies of UNG. In addition,

USCF has arranged for one or more third parties to provide administrative, custody, accounting, transfer agency and other necessary services

to UNG. For these services, UNG is contractually obligated to pay USCF a fee, which is paid monthly, equal to 0.60% per

annum of average daily total net assets of $1,000,000,000 or less and 0.50% per annum of average daily total net assets that are greater

than $1,000,000,000.

Ongoing

Registration Fees and Other Offering Expenses

UNG pays all

costs and expenses associated with the ongoing registration of its shares subsequent to the initial offering. These costs include registration

or other fees paid to regulatory agencies in connection with the offer and sale of shares, and all legal, accounting, printing and other

expenses associated with such offer and sale. For the years ended December 31, 2025, 2024 and 2023, UNG incurred $85,562, $43,490

and $0, respectively, in registration fees and offering expenses.

Independent

Directors’ and Officers’ Expenses

UNG is responsible

for paying its portion of the directors’ and officers’ liability insurance for UNG and the Related Public Funds and the fees

and expenses of the independent directors who also serve as audit committee members of UNG and the Related Public Funds. UNG shares the

fees and expenses on a pro rata basis with each Related Public Fund, as described above, based on the relative assets of each Related

Public Fund computed on a daily basis. These fees and expenses for the year ending December 31, 2025 were a total of $207,297 for UNG

and, in the aggregate for UNG and the Related Public Funds, $754,349. For the year ended December 31, 2024 these fees and expenses were

$277,838 for UNG and, in the aggregate for UNG and the Related Public Funds, $916,574 For the year ended December 31, 2023, these fees

and expenses were $220,736 for UNG and, in the aggregate for UNG and Related Public Funds, $1,210,000.

Licensing Fees

As discussed

in Note 4 below, UNG entered into a licensing agreement with the NYMEX on April 10, 2006, as amended on October 20, 2011.

Pursuant to the agreement, UNG and the Related Public Funds, other than BNO, USCI and CPER, pay a licensing fee that is equal to 0.015%

on all net assets. During the years ended December 31, 2025, 2024 and 2023, UNG incurred $78,012, $122,200 and $156,303, respectively

under this arrangement.

Investor

Tax Reporting Cost

The fees and

expenses associated with UNG’s audit expenses and tax accounting and reporting requirements are paid by UNG. These costs were $1,561,625

for the year ending December 31, 2025. For the years ending December 31, 2024 and 2023 UNG’s investor reporting costs totaled $2,202,754

and $1,120,961, respectively. Tax reporting costs fluctuate between years due to the number of shareholders during any given year.

Other

Expenses and Fees

In addition

to the fees described above, UNG pays all brokerage fees and other expenses in connection with the operation of UNG, excluding costs

and expenses paid by USCF as outlined in Note 4 – Contracts

and Agreements below.

NOTE 4 —

CONTRACTS AND AGREEMENTS

Marketing

Agent Agreement

UNG is party

to a marketing agent agreement, dated as of April 17, 2007, as amended from time to time, with the Marketing Agent and USCF, whereby

the Marketing Agent provides certain marketing services for UNG as outlined in the agreement. The agreement with the Marketing Agent

was amended and, commencing October 1, 2022, the fee of the Marketing Agent, which is calculated daily and payable monthly by USCF, is

equal to 0.025% of UNG’s total net assets. In no event may the aggregate compensation paid to the Marketing Agent and any affiliate

of USCF for distribution-related services exceed 10 percent of the gross proceeds of UNG’s offering.

The above fee

does not include website construction and development, which are also borne by USCF.

Custody,

Transfer Agency and Fund Administration and Accounting Services Agreements

USCF engaged

The Bank of New York Mellon, a New York corporation authorized to conduct a banking business (“BNY Mellon”), to provide UNG

and each of the Related Public Funds with certain custodial, administrative and accounting, and transfer agency services, pursuant to

the following agreements with BNY Mellon dated as of March 20, 2020 (together, the “BNY Mellon Agreements”), which were effective

as of April 1, 2020: (i) a Custody Agreement; (ii) a Fund Administration and Accounting Agreement; and (iii) a Transfer Agency and Service

Agreement. USCF pays the fees of BNY Mellon for its services under the BNY Mellon Agreements and such fees are determined by the parties

from time to time.

Brokerage

and Futures Commission Merchant Agreements

UNG entered

into a brokerage agreement with RBC Capital Markets LLC (“RBC”) to serve as UNG’s FCM effective October 10, 2013. UNG

has engaged each of Marex North America, LLC, formerly RCG Division of Marex Spectron (“MNA”), Marex Capital Markets, Inc.,

formerly E D & F Man Capital Markets Inc. (“MCM”), Macquarie Futures USA LLC (“MFUSA”), and ADM Investor

Services, Inc. (“ADMIS”) to serve as additional FCMs to UNG effective on May 28, 2020, June 5, 2020, December 3, 2020, and

August 8, 2023, respectively. The agreements with UNG’s FCMs require the FCMs to provide services to UNG in connection with the

purchase and sale of Futures Contracts and Other Natural Gas-Related Investments that may be purchased and sold by or through the applicable

FCM for UNG’s account. In accordance with the FCM agreements, UNG pays each FCM commissions of approximately $7 to $8 per round-turn

trade, including applicable exchange, clearing and NFA fees for Futures Contracts and options on Futures Contracts. Such fees include

those incurred when purchasing Futures Contracts and options on Futures Contracts when UNG issues shares as a result of a Creation Basket,

as well as fees incurred when selling Futures Contracts and options on Futures Contracts when UNG redeems shares as a result of a Redemption

Basket. Such fees are also incurred when Futures Contracts and options on Futures Contracts are purchased or redeemed for the purpose

of rebalancing the portfolio. UNG also incurs commissions to brokers for the purchase and sale of Futures Contracts, Other Natural Gas-Related

Investments or short-term obligations of the United States of two years or less (“Treasuries”).

Year ended

Year ended

Year ended

December 31,

2025

December 31,

2024

December 31,

2023

Total commissions accrued to brokers

$ 1,046,801

$ 2,556,712

$ 2,696,598

Total commissions as annualized percentage of average total net assets

0.20 %

0.31 %

0.26 %

The decrease

in total commissions accrued to brokers for the year ended December 31, 2025, compared to the year ended December 31, 2024, was due primarily

to a lower number of natural gas futures contracts being held and traded.

Swap

Dealer Agreements

UNG entered

into ISDA 2002 Master Agreements with (1) Macquarie Bank Limited on November 30, 2021 (the “Macquarie ISDA”), (2) Société

Générale on June 13, 2022 (the “Société Générale ISDA”), and (3) The Bank of Nova

Scotia on August 5, 2024 (the “ScotiaBank ISDA”), pursuant to which each of Macquarie Bank Limited, Société

Générale and The Bank of Nova Scotia, respectively, has agreed to serve as an over-the-counter (“OTC”) swap

counterparty for UNG. The Macquarie ISDA, Société Générale ISDA and ScotiaBank ISDA (together, the “ISDA

Agreements”) each provide UNG with the ability to invest in OTC swaps in furtherance of UNG’s investment objective by providing

it with investment flexibility in light of market conditions, liquidity, regulatory requirements, and risk diversification. UNG may enter

into OTC swap transactions under each of the ISDA Agreements in light of the foregoing. Any OTC swap transactions of UNG that are outstanding

under any ISDA Agreement, along with UNG’s other holdings, are posted on UNG’s webpage, www.uscfinvestments.com. In accordance

with each of the swap agreements described above, UNG pays each swap dealer a flat fee in a range between 0.20% and 0.30% on the daily

notional value of each OTC swap transaction.

NYMEX Licensing Agreement

UNG and the

NYMEX entered into a licensing agreement on April 10, 2006, as amended on October 20, 2011, whereby UNG was granted a non-exclusive license

to use certain of the NYMEX’s settlement prices and service marks. Under the licensing agreement, UNG and the Related Public Funds,

other than BNO, USCI, and CPER, pay the NYMEX an asset-based fee for the license, the terms of which are described in Note 3. UNG expressly

disclaims any association with the NYMEX or endorsement of UNG by the NYMEX and acknowledges that “NYMEX” and “New

York Mercantile Exchange” are registered trademarks of the NYMEX.

NOTE 5 —

FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES

UNG may

engage in the trading of futures contracts, options on futures contracts, cleared swaps and OTC swaps (collectively, “derivatives”).

UNG is exposed to both market risk, which is the risk arising from changes in the market value of the contracts, and credit risk, which

is the risk of failure by another party to perform according to the terms of a contract.

UNG may enter

into futures contracts, options on futures contracts, cleared swaps, and OTC swaps to gain exposure to changes in the value of an underlying

commodity. A futures contract obligates the seller to deliver (and the purchaser to accept) the future delivery of a specified quantity

and type of a commodity at a specified time and place. Some futures contracts may call for physical delivery of the asset, while others

are settled in cash. The contractual obligations of a buyer or seller may generally be satisfied by taking or making physical delivery

of the underlying commodity or by making an offsetting sale or purchase of an identical futures contract on the same or linked exchange

before the designated date of delivery. Cleared swaps are agreements that are eligible to be cleared by a clearinghouse, e.g., ICE Clear

Europe, and provide the efficiencies and benefits that centralized clearing on an exchange offers to traders of futures contracts, including

credit risk intermediation and the ability to offset positions initiated with different counterparties. OTC swaps are entered into between

two parties in private contracts. In an OTC swap, each party bears credit risk to the other party, i.e., the risk that the other party

may not be able to perform its obligations under the OTC swap.

The purchase

and sale of futures contracts, options on futures contracts and cleared swaps require margin deposits with an FCM. Additional deposits

may be necessary for any loss on contract value. The Commodity Exchange Act requires FCMs to segregate all customer transactions and

assets from the FCM’s proprietary transactions and assets. To reduce the credit risk that arises in connection with OTC swaps,

UNG will generally enter into an agreement with each counterparty based on the Master Agreement published by the International Swaps

and Derivatives Association, Inc. (“ISDA”) that provides for the netting of its overall exposure to its counterparty and,

consistent with applicable regulatory requirements, the posting by each party to cover the mark-to-market exposure of a counterparty

to the other counterparty is required.

Futures contracts,

options on futures contracts and cleared swaps involve, to varying degrees, elements of market risk (specifically commodity price risk)

and exposure to loss in excess of the amount of variation margin. The face or contract amounts reflect the extent of the total exposure UNG

has in the particular classes of instruments. Additional risks associated with the use of futures contracts are an imperfect correlation

between movements in the price of the futures contracts and the market value of the underlying securities and the possibility of an illiquid

market for a futures contract. Buying and selling options on futures contracts exposes investors to the risks of purchasing or selling

futures contracts.

As to OTC swaps,

valuing OTC derivatives is less certain than valuing actively traded financial instruments such as exchange-traded futures contracts

and securities or cleared swaps, because the price and terms on which such OTC derivatives are entered into or can be terminated are

individually negotiated, and those prices and terms may not reflect the best price or terms available from other sources. In addition,

while market makers and dealers generally quote indicative prices or terms for entering into or terminating OTC contracts, they typically

are not contractually obligated to do so, particularly if they are not a party to the transaction. As a result, it may be difficult to

obtain an independent value for an outstanding OTC derivatives transaction.

Market volatility

is attributable to things like the COVID-19 pandemic and related supply chain disruptions, war (such as the Russia-Ukraine war), continuing

disputes among natural gas-producing countries, the introduction of or changes in tariffs or trade barriers, and trade wars between nations.

Events such as these, and others, could cause volatility in the future, which may affect the value, pricing and liquidity of some investments

or other assets, including those held by or invested in by UNG and the impact of which could limit UNG’s ability to have a substantial

portion of its assets invested in the Benchmark Futures Contract. In such a circumstance, UNG could, if it determined it appropriate

to do so in light of market conditions and regulatory requirements, invest in other Futures Contracts and/or Other Natural Gas-Related

Investments, such as OTC swaps.

All of the futures

contracts held by UNG through December 31, 2025, were exchange-traded. The risks associated with exchange-traded contracts are generally

perceived to be less than those associated with OTC swaps since, in OTC swaps, a party must rely solely on the credit of its respective

individual counterparties. However, in the future, if UNG were to enter into non-exchange traded contracts, it would be subject to the

credit risk associated with counterparty non-performance. The credit risk from counterparty non-performance associated with such instruments

is the net unrealized gain, if any, on the transaction. UNG has credit risk under its futures contracts since the sole counterparty to

all domestic and foreign futures contracts is the clearinghouse for the exchange on which the relevant contracts are traded. In addition,

UNG bears the risk of financial failure by the clearing broker.

UNG’s cash

and other property, such as Treasuries, deposited with its FCMs are considered commingled with all other customer funds, subject to such

FCM’s segregation requirements. In the event of an FCM’s insolvency, recovery may be limited to a pro rata share of segregated

funds available. It is possible that the recovered amount could be less than the total of cash and other property deposited. The insolvency

of an FCM could result in the complete loss of UNG’s assets posted with that FCM; however, the majority of UNG’s assets

are held in investments in Treasuries, cash and/or cash equivalents with UNG’s custodian and would not be impacted by

the insolvency of an FCM. The failure or insolvency of UNG’s custodian, however, could result in a substantial loss of UNG’s

assets.

USCF invests

a portion of UNG’s cash in money market funds that seek to maintain a stable per share NAV. UNG is exposed to any risk

of loss associated with an investment in such money market funds. As of December 31, 2025 and December 31, 2024, UNG held investments

in money market funds in the amounts of $270,950,000 and $520,950,000, respectively. UNG also holds cash deposits with

its custodian and FCMs. As of December 31, 2025 and December 31, 2024, UNG held cash deposits in the amounts of $305,900,670 and $156,176,774

respectively, with the custodian and FCMs. Some or all of these amounts may be subject to loss should UNG’s custodian and/or

FCMs cease operations.

For derivatives,

risks arise from changes in the market value of the contracts. Theoretically, UNG is exposed to market risk equal to the value of futures

contracts purchased and unlimited liability on such contracts sold short or that the value of the futures contract could fall below zero.

As both a buyer and a seller of options, UNG pays or receives a premium at the outset and then bears the risk of unfavorable changes

in the price of the contract underlying the option.

UNG’s policy

is to continuously monitor its exposure to market and counterparty risk through the use of a variety of financial, position and credit

exposure reporting controls and procedures. In addition, UNG has a policy of requiring review of the credit standing of each broker or

counterparty with which it conducts business.

The financial

instruments held by UNG are reported in its statements of financial condition at market or fair value, or at carrying amounts that approximate

fair value, because of their highly liquid nature and short-term maturity.

For the year

ended December 31, 2025, the monthly average volume of open future and swap contract notional value was $360,809,506 and $159,681,621,

respectively. For the year ended December 31, 2024, the monthly average volume of open future and swap contract notional value was $668,981,622

and $145,162,022, respectively.

NOTE 6 —

FINANCIAL HIGHLIGHTS

The following

table presents per share performance data and other supplemental financial data for the years ended December 31, 2025, 2024

and 2023 for the shareholders. This information has been derived from information presented in the financial statements.

Year ended

December 31,

2025

Year ended

December 31,

2024

Year ended

December 31,

2023#

Per Share Operating Performance:

Net asset value, beginning of year

$ 16.85

$ 20.36

$ 56.90

Total income (loss)

(4.47 )

(3.32 )

(36.26 )

Total expenses

(0.18 )

(0.19 )

(0.28 )

Net increase (decrease) in net asset value

(4.65 )*

(3.51 )

(36.54 )

Net asset value, end of year

$ 12.20

$ 16.85

$ 20.36

Total Return

(27.60 )%

(17.24 )%

(64.22 )%

Ratios to Average Net Assets

Total income (loss)

7.75 %

9.23 %

(63.42 )%

Management fees

0.60 %

0.60 %

0.60 %

Total expenses excluding management fees

0.57 %

0.64 %

0.41 %

Net income (loss)

6.58 %

7.99 %

(64.43 )%

# On

January 23, 2024 there was a 1 - for - 4 reverse share split. The Financial Highlights have

been adjusted for the periods shown to reflect the 1 - for - 4 reverse share split on a retroactive

basis.

* The

amount shown for a share outstanding throughout the year may not agree with the change in

the aggregate gains and losses for the year because of the timing of sales and repurchases

of the Fund’s shares in relation to fluctuating market values for the Fund.

Total returns

are calculated based on the change in value during the period. An individual shareholder’s total return and ratio may vary from

the above total returns and ratios based on the timing of contributions to and withdrawals from UNG. Additionally, only Authorized Participants

purchase and redeem shares from the Fund at the NAV per share. Most shareholders will purchase and sell shares in the secondary market

at market prices, which may differ from the NAV per share and result in a higher or lower total return.

NOTE 7 —

QUARTERLY FINANCIAL DATA (Unaudited)

The following

summarized (unaudited) quarterly financial information presents the results of operations and other data for the three-month periods

ended March 31, June 30, September 30 and December 31, 2025 and 2024.

First

Quarter

2025

Second

Quarter

2025

Third

Quarter

2025

Fourth

Quarter

2025

Total Income (Loss)

$ 210,754,261

$ (121,294,698 )

$ (54,504,535 )

$ 5,373,309

Total Expenses

1,934,205

1,124,440

1,371,440

1,669,704

Net Income (Loss)

$ 208,820,056

$ (122,419,138 )

$ (55,875,975 )

$ 3,703,605

Net Income (Loss) per Share

$ 4.69

$ (6.23 )

$ (2.34 )

$ (0.77 )

First

Quarter

2024

Second

Quarter

2024

Third

Quarter

2024

Fourth

Quarter

2024

Total Income (Loss)

$ (162,005,166 )

$ 176,585,785

$ 4,446,633

$ 56,237,000

Total Expenses

2,566,203

2,507,609

2,541,508

2,503,157

Net Income (Loss)

$ (164,571,369 )

$ 174,078,176

$ 1,905,125

$ 53,733,843

Net Income (Loss) per Share

$ (5.62 )

$ 2.65

$ (0.96 )

$ 0.42

NOTE 8 —

FAIR VALUE OF FINANCIAL INSTRUMENTS

UNG values its

investments in accordance with Accounting Standards Codification 820 – Fair Value Measurements and Disclosures (“ASC

820”). ASC 820 defines fair value, establishes a framework for measuring fair value in generally accepted accounting principles,

and expands disclosures about fair value measurement. ASC 820 establishes a fair value hierarchy that distinguishes between: (1) market

participant assumptions developed based on market data obtained from sources independent of UNG (observable inputs) and (2) UNG’s

own assumptions about market participant assumptions developed based on the best information available under the circumstances (unobservable

inputs). The three levels defined by the ASC 820 hierarchy are as follows:

Level I –

Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the ability to access

at the measurement date.

Level II –

Inputs other than quoted prices included within Level I assets and liabilities include the following: quoted prices for similar assets

or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs

other than quoted prices that are observable for the asset or liability, and inputs that are derived principally from or corroborated

by observable market data by correlation or other means (market-corroborated inputs).

Level III –

Unobservable pricing input at the measurement date for the asset or liability. Unobservable inputs shall be used to measure fair value

to the extent that observable inputs are not available.

In some instances,

the inputs used to measure fair value might fall within different levels of the fair value hierarchy. The level in the fair value hierarchy

within which the fair value measurement in its entirety falls shall be determined based on the lowest input level that is significant

to the fair value measurement in its entirety.

The following

table summarizes the valuation of UNG’s securities at December 31, 2025 using the fair value hierarchy:

At December 31, 2025

Total

Level I

Level II

Level III

Short-Term Investments

$ 270,950,000

$ 270,950,000

$ —

$ —

Exchange-Traded Futures Contracts

United States Contracts

928,964

928,964

OTC Commodity Swap Contracts

(907 )

(907 )

The following

table summarizes the valuation of UNG’s securities at December 31, 2024 using the fair value hierarchy:

At December 31, 2024

Total

Level I

Level II

Level III

Short-Term Investments

$ 532,370,156

$ 532,370,156

$ —

$ —

Exchange-Traded Futures Contracts

United States Contracts

80,696,279

80,696,279

OTC Commodity Swap Contracts

(2,205 )

(2,205 )

Effective January 1,

2009, UNG adopted the provisions of Accounting Standards Codification 815 — Derivatives and Hedging, which require presentation

of qualitative disclosures about objectives and strategies for using derivatives, quantitative disclosures about fair value amounts and

gains and losses on derivatives.

Fair

Value of Derivative Instruments

Derivatives not Accounted for as Hedging Instruments

Statements of

Financial

Condition

Location

Fair Value at

December 31,

2025

Fair Value at

December 31,

2024

Futures—Commodity Contracts

Unrealized gain (loss) on open commodity future contracts

$ 928,964

$ 80,696,279

Swap—Commodity Contracts

Unrealized gain (loss) on open OTC commodity swap contracts

$ (907 )

$ (2,205 )

The

Effect of Derivative Instruments on the Statements of Operations

For the year ended

December 31, 2025

For the year ended

December 31, 2024

For the year ended

December 31, 2023

Derivatives not

Accounted for

as Hedging

Instruments

Location of

Gain (Loss)

on Derivatives

Recognized in

Income

Realized

Gain (Loss)

on Derivatives

Recognized in

Income

Change in

Unrealized

Gain (Loss) on

Derivatives

Recognized in

Income

Realized

Gain (Loss)

in Derivatives

Recognized in

Income

Change in

Unrealized

Gain (Loss) on

Derivatives

Recognized in

Income

Realized

Gain (Loss)

in Derivatives

Recognized in

Income

Change in

Unrealized

Gain (Loss) on

Derivatives

Recognized in

Income

Futures—Commodity Contracts

Realized gain (loss) on closed commodity futures contracts

$ 138,311,471

$ (47,713,339 )

$ (762,934,486 )

Change in unrealized gain (loss) on open commodity futures contracts

$ (79,767,315 )

$ 40,623,818

$ 184,838,398

OTC Swap—Commodity Contracts

Realized gain (loss) on closed OTC commodity swap contracts

$ (37,813,013 )

$ 58,360,050

$ (144,572,961 )

Change in unrealized gain (loss) on open OTC commodity swap contracts

$ 1,298

$ (14,905,416 )

$ 14,903,211

NOTE 9 —

SUBSEQUENT EVENTS

UNG has performed

an evaluation of subsequent events through the date the financial statements were issued. This evaluation did not result in any subsequent

events that necessitated disclosures and/or adjustments.

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 7

v3.26.1

Cover

Mar. 27, 2026

Cover [Abstract]

Document Type

8-K

Amendment Flag

false

Document Period End Date

Mar. 27, 2026

Entity File Number

001-33096

Entity Registrant Name

UNITED

STATES NATURAL GAS FUND, LP

Entity Central Index Key

0001376227

Entity Tax Identification Number

20-5576760

Entity Incorporation, State or Country Code

DE

Entity Address, Address Line One

1850 Mt. Diablo Boulevard

Entity Address, Address Line Two

Suite 640

Entity Address, City or Town

Walnut Creek

Entity Address, State or Province

CA

Entity Address, Postal Zip Code

94596

City Area Code

(510)

Local Phone Number

522-9600

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Shares of United States

Natural Gas Fund, LP

Trading Symbol

UNG

Security Exchange Name

NYSEArca

Entity Emerging Growth Company

false

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 2 such as Street or Suite number

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine2

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration