UNITED STATES COMMODITY FUNDS LLC

General Partner of the United States Natural Gas Fund, LP

March 25, 2022

Dear United States Natural Gas Fund, LP Investor,

Enclosed with this letter is your copy of the 2021 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, 2021 to satisfy our annual reporting requirement under federal commodities laws. In addition, we have enclosed a copy of the current United States Commodity Funds LLC (“USCF”) Privacy Policy applicable to UNG. Additional information concerning UNG’s 2021 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:

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,

*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 COMMODITY FUNDS LLC

PRIVACY POLICY

Effective Date: January 1, 2020

Last Updated: December 18, 2019

Introduction

This document sets forth the Privacy Policy of (i) the United States Commodity Funds LLC (the “Company”), (ii) each of the statutory trusts for which the Company serves as sponsor, the United States Commodity Index Funds Trust (the “Index Funds Trust”) and the USCF Funds Trust (together with the Index Funds Trust, the “Trusts”), and (iii) each of the funds for which the Company serves as the general partner or as sponsor as set forth in Appendix A, which may be amended from time to time (each a “Fund” and together, the “Funds”), relating to the collection, maintenance and use of nonpublic personal information about the Funds’ investors, as required under federal legislation. The Company is a commodity pool operator registered with the Commodity Futures Trading Commission. This Privacy Policy covers the nonpublic personal information of investors who are individuals and who obtain financial products or services primarily for personal, family or household purposes.

Collection of Investor Information

In the course of doing business with Fund shareholders, the Company and the Trusts may collect or have access to nonpublic personal information about Fund shareholders. Shares of the Funds are registered in the name of Cede & Co., as nominee for the Depository Trust Company. However, the Company may collect or have access to personal information about Fund investors for certain purposes relating to the operation of the Funds, including for the distribution of certain required tax reports to investors. This information may include information received from investors and information about investors’ holdings and transactions in shares of the Funds.

“Nonpublic personal information” is personally identifiable financial information about Fund shareholders. For example, it includes Fund shareholders’ social security numbers, account balances, bank account information and investors’ holdings and transactions in shares of the Funds.

The Company, the Trusts and the Funds may collect this information from the following sources:

Disclosure of Nonpublic Personal Information

The Company, the Trusts and the Funds do not sell or rent investor information of the Funds. The Company, the Trusts and the Funds only disclose nonpublic personal information collected about Fund investors as permitted by law. For example, the Company, the Trusts and the Funds may disclose nonpublic personal information about Fund investors:

Fund investors have no right to opt out of the disclosure by the Company, the Trusts or the Funds of non-public personal information under the circumstances described above.

Protection of Investor Information

The Company, the Trusts and the Funds holds Fund investor information in the strictest confidence. Accordingly, the Company’s policy is to require that all employees, financial professionals and companies providing services on its behalf keep client information confidential. In addition, access to nonpublic personal information about shareholders is limited to our employees and in some cases to third parties (for example, the service providers described above) as permitted by law.

The Company, the Trusts and the Funds maintains safeguards that comply with federal standards to protect investor information. The Company restricts access to the personal and account information of investors to those employees who need to know that information in the course of their job responsibilities. Third parties with whom the Company, the Trusts and the Funds share Fund investor information must agree to follow appropriate standards of security and confidentiality, which includes safeguarding such information physically, electronically and procedurally.

The privacy policy of the Company, the Trusts and the Funds applies to both current and former Fund investors. The Company, the Trusts and the Funds will only disclose nonpublic personal information about a former investor to the same extent as for a current Fund investor.

Your California Privacy Rights

If you are a California resident, California law provides you with specific rights regarding your personal information, including the right to request that we disclose certain information to you about the collection and use of your personal information over the past 12 months; the right to request that we delete any of your personal information that we have collected from you, subject to certain exceptions; and the right to opt-out of the “sale” of your personal information, as defined by California law. To make such a request, contact us at 1-800-920-0259 or uscfinvestments.com. Please note that we are only required to respond to two such requests per customer each year.

You also have the right not to be discriminated against if you exercise any of your rights under California privacy law.

The Company may have collected the following categories of personal information of California residents in the past 12 months:

Please note that these rights do not apply to personal information collected, processed, sold, or disclosed pursuant to the federal Gramm-Leach-Bliley Act and implementing regulations. Please review the privacy notices in the Appendix below for more information about how we collect, process, sell, and disclose personal information pursuant to these laws and regulations.

This information is collected and used for the purposes disclosed in this Privacy Policy. The Company has not sold personal information of California residents in the past 12 months. The Company may have disclosed any of the above categories of personal information pursuant to an individual’s consent or under a written contract with a service provider for a business purpose in the past 12 months.

Changes to Privacy Policy

The Company, the Trusts and the Funds may modify or amend this Privacy Policy from time to time. The Company will indicate the date when it was most recently updated and its effective date. If there are changes to the privacy policy in the future, a revised privacy policy with those changes will be communicated through an appropriate channel to Fund investors as long as they continue to be Fund investors.

APPENDIX A

UNITED STATES COMMODITY FUNDS LLC,

GENERAL PARTNER OF

UNITED STATES OIL FUND, LP

UNITED STATES NATURAL GAS FUND, LP

UNITED STATES 12 MONTH OIL FUND, LP

UNITED STATES GASOLINE FUND, LP

UNITED STATES 12 MONTH NATURAL GAS FUND, LP

UNITED STATES BRENT OIL FUND, LP

AND

SPONSOR OF

UNITED STATES COMMODITY INDEX FUND

UNITED STATES COPPER INDEX FUND

EACH A SERIES OF

UNITED STATES COMMODITY INDEX FUNDS TRUST

UNITED STATES COMMODITY FUNDS LLC

UNITED STATES COMMODITY INDEX FUNDS TRUST

USCF FUNDS TRUST

EACH OF THE FUNDS FOR WHICH THE COMPANY SERVES AS

GENERAL PARTNER OR SPONSOR

Privacy Notice

UNITED STATES COMMODITY FUNDS LLC

UNITED STATES COMMODITY INDEX FUNDS TRUST

USCF FUNDS TRUST

EACH OF THE FUNDS FOR WHICH THE COMPANY SERVES AS

GENERAL PARTNER OR SPONSOR

Privacy Notice

UNITED STATES NATURAL GAS FUND, LP

FINANCIAL STATEMENTS

For the years ended December 31, 2021, 2020 and 2019

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, 2021, 2020 and 2019 is accurate and complete.

By United States Commodity Funds LLC, as General Partner

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 of United States Natural Gas Fund, LP (the “Fund”) as of December 31, 2021 and 2020, including the schedule of investments as of December 31, 2021 and 2020, and 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, 2021, 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, 2021, 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 United States Natural Gas Fund, LP as of December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2021, 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, 2021 based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.

Basis for Opinion

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 misstatement, 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 Fund’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 Fund’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 Fund; (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 Fund are being made only in accordance with authorizations of management and directors of the Fund; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the Fund’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 our especially challenging, subjective, or complex judgments. We determined that there are no critical audit matters.

We have served as the Fund’s auditor since 2006.

Denver, Colorado

February 25, 2022

United States Natural Gas Fund, LP

Statements of Financial Condition

At December 31, 2021 and December 31, 2020

*    Certain prior year amounts have been reclassified for consistency with the current presentation.

See accompanying notes to financial statements.

United States Natural Gas Fund, LP

Schedule of Investments

At December 31, 2021

#   Reflects the 7-day yield at December 31, 2021.

*   Collateral amounted to $127,265,650 on open commodity futures contracts.

See accompanying notes to financial statements.

United States Natural Gas Fund, LP

Schedule of Investments

At December 31, 2020

#   Reflects the 7-day yield at December 31, 2020.

*   Collateral amounted to $97,539,600 on open commodity futures contracts.

See accompanying notes to financial statements.

United States Natural Gas Fund, LP

Statements of Operations

For the years ended December 31, 2021, 2020 and 2019

*    Interest income does not exceed paid in kind of 5%.

See accompanying notes to financial statements.

United States Natural Gas Fund, LP

Statement of Changes in Partners’ Capital

For the years ended December 31, 2021, 2020 and 2019

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

See accompanying notes to financial statements.

United States Natural Gas Fund, LP

Statements of Cash Flows

For the years ended December 31, 2021, 2020 and 2019

United States Natural Gas Fund, LP

Notes to Financial Statements

For the years ended December 31, 2021, 2020 2019

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 November 25, 2008, UNG’s shares traded on the American Stock Exchange (the “AMEX”). 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 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 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 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, 2021, UNG held 9,961 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 closely tracked the daily changes in spot prices 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 will closely track the daily changes in the spot price of natural gas on a percentage basis less UNG’s expenses.

Specifically, 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.

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 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 changes in the spot prices of natural gas will continue to be so 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 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”) and the United States Gasoline Fund, LP (“UGA”), which listed their limited partnership shares on the AMEX under the ticker symbols “USO” on April 10, 2006, “USL” on December 6, 2007 and “UGA” on February 26, 2008, respectively. As a result of the acquisition of the AMEX by NYSE Euronext, each of USO’s, USL’s and UGA’s shares commenced trading on the NYSE Arca on November 25, 2008. USCF is also the general partner of the United States 12 Month Natural Gas Fund, LP (“UNL”) and the United States Brent Oil Fund, LP (“BNO”), which listed their limited partnership shares on the NYSE Arca under the ticker symbols “UNL” on November 18, 2009 and “BNO” on June 2, 2010, respectively.

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”). USCI and CPER listed their shares on the NYSE Arca under the ticker symbols “USCI” on August 10, 2010 and “CPER” on November 15, 2011, respectively.

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 $1,000 transaction fee for each order placed 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. As of December 31, 2021, UNG had registered a total of 2,280,000,000 shares.

On January 4, 2018, 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 5, 2018. As a result of the reverse share split, every four pre-split shares of UNG were automatically exchanged for one post-split share. Immediately prior to the reverse split, there were 97,466,476 shares of UNG issued and outstanding, representing a per share NAV of $5.69. Immediately after the reverse share split, the number of issued and outstanding shares of UNG decreased to 24,366,619, not accounting for fractional shares, and the per share NAV increased to $22.76. In connection with the reverse share split, the CUSIP number for UNG’s shares changed to 912318300. UNG’s ticker symbol, “UNG,” did not change.

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 futures commission merchants (“FCMs”) at prevailing market rates earned on such investments.

Brokerage Commissions

Brokerage commissions on all open commodity futures contracts are accrued on a full-turn basis.

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 2018. 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, 2021.

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 $1,000 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 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, 2021.

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 six months or less.

Reclassification

Certain amounts in the accompanying financial statements were reclassified to conform to the current presentation.

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 4, 2018, 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 5, 2018. The unaudited condensed 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, 2018.

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, 2018, 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.

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, 2021, 2020 and 2019, UNG incurred $103,290, $364,200 and $144,440 respectively, in registration fees and other 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, 2021 totaled $81,479 for UNG and, in the aggregate for UNG and the Related Public Funds, $1,081,963. For the year ended December 31, 2020 these fees and expenses were $585,896 for UNG and the Related Public Funds. UNG’s portion of such fees and expenses for the year ended December 31, 2020 was $83,030. For the year ended December 31, 2019, these fees and expenses were $556,951 for UNG and the Related Public Funds. UNG’s portion of such fees and expenses for the year ended December 31, 2019 was $70,739.

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, 2021, 2020 and 2019, UNG incurred $50,610, $60,330 and $45,507, 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 are estimated to be $670,000 for the year ending December 31, 2021. For the years ending December 31, 2020 and 2019 UNG’s investor reporting costs totaled $587,711 and $752,399 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 fee of the Marketing Agent, which is borne by USCF, is equal to 0.06% on UNG’s assets up to $3 billion and 0.04% on UNG’s assets in excess of $3 billion. 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 do 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. Brown Brothers Harriman and Co. (“BBH&Co.”) previously served as the Administrator, Custodian, Transfer Agent and Fund Accounting Agent for UNG and the Related Public Funds prior to BNY Mellon commencing such services on April 1, 2020. Certain fund accounting and fund administration services rendered by BBH&Co. to UNG and the Related Public Funds terminated on May 31, 2020 to allow for the transition to BNY Mellon.

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 RCG Division of Marex Spectron (“RCG”), E D & F Man Capital Markets Inc. (“MCM”) and Macquarie Futures USA LLC (“MFUSA”) to serve as an additional FCM to UNG effective on May 28, 2020, June 5, 2020, and December 3, 2020, respectively. The agreements with UNG’s FCMs require the FCMs to provide services to UNG in connection with the purchase and sale of Natural Gas 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 Natural Gas Futures Contracts and options on Natural Gas Futures Contracts. Such fees include those incurred when purchasing Natural Gas Futures Contracts and options on Natural Gas Futures Contracts when UNG issues shares as a result of a Creation Basket, as well as fees incurred when selling Natural Gas Futures Contracts and options on Natural Gas Futures Contracts when UNG redeems shares as a result of a Redemption Basket. Such fees are also incurred when Natural Gas Futures Contracts and options on Natural Gas 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 Natural Gas Futures Contracts, Other Natural Gas-Related Investments or short-term obligations of the United States of two years or less (“Treasuries”).

The decrease in total commissions accrued to brokers for the year ended December 31, 2021, compared to the year ended December 31, 2020, was due primarily to a lower number of natural gas futures contracts being held and traded.

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., which provides for the netting of its overall exposure to its counterparty. The Master Agreement is negotiated as between the parties and would address, among other things, the exchange of margin between the parties.

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.

A novel strain of coronavirus (COVID-19) outbreak was declared a pandemic by the World Health Organization on March 11, 2020. The situation is evolving with various cities and countries around the world responding in different ways to address the outbreak. There are direct and indirect economic effects developing for various industries and individual companies throughout the world. Management will continue to monitor the impact COVID-19 has on UNG and reflect the consequences as appropriate in UNG’s accounting and financial reporting. The pandemic spread of the novel coronavirus and related geopolitical events could lead to increased market volatility, disruption to U.S. and world economies and markets and may have significant adverse effects on UNG and its investments.

All of the futures contracts held by UNG through December 31, 2021 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, 2021 and December 31, 2020, UNG held investments in money market funds in the amounts of $243,443,000 and $21,143,000, respectively. UNG also holds cash deposits with its custodian. As of December 31, 2021 and December 31, 2020, UNG held cash deposits and investments in Treasuries in the amounts of $132,227,353 and $419,339,567 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.

NOTE 6 — FINANCIAL HIGHLIGHTS

The following table presents per share performance data and other supplemental financial data for the years ended December 31, 2021, 2020 and 2019 for the shareholders. This information has been derived from information presented in the financial statements.

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.

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, 2021 and 2020.

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. The changes to past practice resulting from the application of ASC 820 relate to the definition of fair value, the methods used to measure fair value, and the expanded 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 that are observable for the asset or liability, either directly or indirectly. Level II assets 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, 2021 using the fair value hierarchy: 

The following table summarizes the valuation of UNG’s securities at December 31, 2020 using the fair value hierarchy: 

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 

The Effect of Derivative Instruments on the Statements of Operations

NOTE 9 — RECENT ACCOUNTING PRONOUNCEMENTS

In August 2018, the FASB issued Accounting Standards Update (“ASU”) No. 2018-13, which changes certain fair value measurement disclosure requirements. The new ASU, in addition to other modifications and additions, removes the requirement to disclose the amount and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, and UNG’s policy for the timing of transfers between levels. The amendments are effective for financial statements issued for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. UNG has evaluated the implications of certain provisions of the ASU and has determined that there will be no material impacts to the financial statements.

NOTE 10 — 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.