United States 12 Month Natural Gas Fund (UNL) 10-K4 Mar 222021 FY Annual reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2021	Feb. 22, 2022	Jun. 30, 2021
Document and Entity Information [Abstract]
Document Annual Report	true
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Registrant Name	United States 12 Month Natural Gas Fund, LP
Document Transition Report	false
Entity File Number	001-34535
Entity Central Index Key	0001405513
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
Entity Tax Identification Number	26-0431733
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Public Float			$ 10,180,000
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Trading Symbol	UNL
Title of 12(b) Security	Shares of United States 12 Month Natural Gas Fund, LP
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		1,700,000
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	true
Auditor Name	Spicer Jeffries LLP
Auditor Firm ID	349
Auditor Location	Denver, Colorado

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Dec. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents (at cost $14,360,397 and $6,497,522, respectively) (Notes 2 and 5)		$ 14,360,397	$ 6,497,522
Equity in trading accounts:
Cash and cash equivalents (at cost $1,345,560 and $845,621, respectively)		1,345,560	845,621
Unrealized gain (loss) on open commodity futures contracts		548,509	(21,964)
Receivable from General Partner (Note 3)		128,748	60,535
Dividends receivable		272	9
Interest receivable		79	174
Prepaid license fees		1,025	983
Prepaid insurance*	[1]	445	96
Total Assets		16,385,035	7,382,976
Liabilities and Partners' Capital
General Partner management fees payable (Note 3)		10,640	4,095
Professional fees payable		58,646	25,000
Brokerage commissions payable		391	391
Directors' fees payable*	[1]	2,772	2,030
Total Liabilities		72,449	31,516
Commitments and Contingencies (Notes 3, 4 & 5)
Partners' Capital
General Partners		0	0
Limited Partners		16,312,586	7,351,460
Total Partners' Capital		16,312,586	7,351,460
Total Liabilities and Partners' Capital		$ 16,385,035	$ 7,382,976
Limited Partners' shares outstanding		1,400,000	950,000
Net asset value per share		$ 11.65	$ 7.74
Market value per share		$ 11.72	$ 7.59

[1]	Certain prior year amounts have been reclassified for consistency with the current presentation.

Statements of Financial Condi_2

Statements of Financial Condition (Parenthetical) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statements of Financial Condition
Cash and cash equivalents	$ 14,360,397	$ 6,497,522	$ 2,990,732
Cash and cash equivalents	$ 1,345,560	$ 845,621	$ 803,973

Schedule of Investments

Schedule of Investments		Dec. 31, 2021USD ($)contract		Dec. 31, 2020USD ($)contract
Open Commodity Futures Contracts - Long [Member] \| United States [Member]
Notional Amount		$ 15,757,241	[1]	$ 7,378,984
Number of Contracts \| contract		441	[1]	273
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ 548,509	[1]	$ (21,964)
% of Partners' Capital		3.36%	[1]	(0.29%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG January 2022 contracts, expiring December 2021
Notional Amount				$ 701,660
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ (10,280)
% of Partners' Capital				(0.14%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG February 2022 contracts, expiring January 2022
Notional Amount		$ 1,397,690
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ (17,590)
% of Partners' Capital		(0.11%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG March 2022 contracts, expiring February 2022
Notional Amount		$ 1,315,010
Number of Contracts \| contract		36
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ (34,490)
% of Partners' Capital		(0.21%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG April 2022 contracts, expiring March 2022
Notional Amount		$ 1,109,299
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ 188,291
% of Partners' Capital		1.15%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG May 2022 contracts, expiring April 2022
Notional Amount		$ 1,102,674
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ 201,576
% of Partners' Capital		1.24%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG June 2022 contracts, expiring May 2022
Notional Amount		$ 1,094,328
Number of Contracts \| contract		36
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ 194,112
% of Partners' Capital		1.19%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG July 2022 contracts, expiring June 2022
Notional Amount		$ 1,192,300
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ 153,760
% of Partners' Capital		0.94%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG September 2022 contracts, expiring August 2022
Notional Amount		$ 1,288,840
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ 59,810
% of Partners' Capital		0.37%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG October 2022 contracts, expiring September 2022
Notional Amount		$ 1,448,300
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ (88,180)
% of Partners' Capital		(0.54%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG November 2022 contracts, expiring October 2022
Notional Amount		$ 1,530,060
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ (129,240)
% of Partners' Capital		(0.79%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG December 2022 contracts, expiring November 2022
Notional Amount		$ 1,572,550
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ (98,840)
% of Partners' Capital		(0.61%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG January 2023 contracts, expiring December 2022
Notional Amount		$ 1,479,370
Number of Contracts \| contract		36
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ (6,970)
% of Partners' Capital		(0.04%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG August 2022 contracts, expiring July 2022
Notional Amount		$ 1,226,820
Number of Contracts \| contract		37
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts		$ 126,270
% of Partners' Capital		0.77%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG November 2021 contracts, expiring October 2021
Notional Amount				$ 649,795
Number of Contracts \| contract				22
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ (34,675)
% of Partners' Capital				(0.47%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG December 2021 contracts, expiring November 2021
Notional Amount				$ 713,702
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ (43,712)
% of Partners' Capital				(0.59%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG February 2021 contracts, expiring January 2021
Notional Amount				$ 625,427
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ (41,457)
% of Partners' Capital				(0.56%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG March 2021 contracts, expiring February 2021
Notional Amount				$ 595,284
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ (14,304)
% of Partners' Capital				(0.19%)
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG April 2021 contracts, expiring March 2021
Notional Amount				$ 522,925
Number of Contracts \| contract				22
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ 35,435
% of Partners' Capital				0.48%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG May 2021 contracts, expiring April 2021
Notional Amount				$ 568,664
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ 18,986
% of Partners' Capital				0.26%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG June 2021 contracts, expiring May 2021
Notional Amount				$ 579,127
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ 21,403
% of Partners' Capital				0.29%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG July 2021 contracts, expiring June 2021
Notional Amount				$ 589,700
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ 27,850
% of Partners' Capital				0.38%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG August 2021 contracts, expiring July 2021
Notional Amount				$ 561,704
Number of Contracts \| contract				22
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ 35,596
% of Partners' Capital				0.48%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG September 2021 contracts, expiring August 2021
Notional Amount				$ 618,613
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ 5,147
% of Partners' Capital				0.07%
Open Commodity Futures Contracts - Long [Member] \| United States [Member] \| NYMEX Natural Gas Futures NG October 2021 contracts, expiring September 2021
Notional Amount				$ 652,383
Number of Contracts \| contract				23
Fair Value/ Unrealized Gain (Loss) on Open Commodity Contracts				$ (21,953)
% of Partners' Capital				(0.30%)
Cash Equivalents [Member] \| United States Money Market Funds [Member]
Market Value				$ 1,000,000
% of Partners' Capital		85.82%		13.60%
Cash Equivalents [Member] \| United States Money Market Funds [Member] \| Goldman Sachs Financial Square Government Fund - Institutional Shares, 0.03%
% of Partners' Capital		36.78%
Cash Equivalents [Member] \| United States Money Market Funds [Member] \| RBC U.S. Government Money Market Fund - Institutional Shares 0.03%
% of Partners' Capital		49.04%
Cash Equivalents [Member] \| United States Money Market Funds [Member] \| RBC U.S. Government Money Market Fund - Institutional Share Class, 0.02%
Principal Amount	[2]			$ 1,000,000
Market Value	[2]			$ 1,000,000
% of Partners' Capital	[2]			13.60%
Cash Equivalents [Member] \| United States [Member]
Market Value		$ 14,000,000
Cash Equivalents [Member] \| United States [Member] \| Goldman Sachs Financial Square Government Fund - Institutional Shares, 0.03%
Principal Amount		6,000,000
Market Value		6,000,000
Cash Equivalents [Member] \| United States [Member] \| RBC U.S. Government Money Market Fund - Institutional Shares 0.03%
Principal Amount		8,000,000
Market Value		$ 8,000,000

[1]	Collateral amounted to $845,621 on open commodity futures contracts.
[2]	Reflects the 7-day yield at December 31, 2020.

Schedule of Investments (Parent

Schedule of Investments (Parenthetical) - USD ($)	12 Months Ended
Schedule of Investments (Parenthetical) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Collateral Amount on Open Commodity Futures Contracts	$ 1,345,560	$ 845,621
United States [Member] \| United States Money Market Funds [Member] \| RBC U.S. Government Money Market Fund - Institutional Shares 0.03%
Interest Rate	0.03%
Cash Equivalents [Member] \| United States Money Market Funds [Member] \| RBC U.S. Government Money Market Fund - Institutional Shares 0.03%
Expiration date	December 31, 2021
Cash Equivalents [Member] \| United States Money Market Funds [Member] \| RBC U.S. Government Money Market Fund - Institutional Share Class, 0.02%
Expiration date		December 31, 2020
Interest Rate		0.02%
Cash Equivalents [Member] \| United States [Member] \| Goldman Sachs Financial Square Government Fund - Institutional Shares, 0.03%
Interest Rate	0.03%

Statements of Operations

Statements of Operations - USD ($)		12 Months Ended
Statements of Operations - USD ($)		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Gain (loss) on trading of commodity futures contracts:
Realized gain (loss) on closed commodity futures contracts		$ 2,685,138	$ (608,115)	$ (479,014)
Change in unrealized gain (loss) on open commodity futures contracts		570,473	413,714	(389,575)
Dividend income		1,802	2,604	11,525
Interest income	[1]	1,677	18,621	81,092
ETF transaction fees		3,500	1,400	700
Total Income (Loss)		3,262,590	(171,776)	(775,272)
Expenses
General Partner management fees (Note 3)		85,770	35,924	32,545
Professional fees		128,233	62,653	77,834
Brokerage commissions		3,199	1,633	1,231
Directors' fees and insurance		12,755	2,711	1,096
License fees		1,716	718	651
Total Expenses		231,673	103,639	113,357
Expense waiver (Note 4)		(128,748)	(60,535)	(74,303)
Net Expenses		102,925	43,104	39,054
Net Income (Loss)		$ 3,159,665	$ (214,880)	$ (814,326)
Net Income (Loss) per limited partner share		$ 3.91	$ (0.69)	$ (1.83)
Net Income (Loss) per weighted average limited partner share		$ 2.93	$ (0.37)	$ (1.80)
Weighted average limited partner shares outstanding		1,078,767	587,397	452,329

[1]	Interest income does not exceed paid in kind of 5%.

Statement of Changes in Partner

Statement of Changes in Partners' Capital - USD ($)		Limited Partner [Member]		Total
Balances at beginning of period at Dec. 31, 2018	[1]	$ 5,642,871
Addition of 750,000, 550,000 and - partnership shares, respectively	[1]	0
Redemption of (300,000), (-) and (150,000) partnership shares, respectively	[1]	(1,454,651)
Net income (loss)		(814,326)	[1]	$ (814,326)
Balances at end of period at Dec. 31, 2019	[1]	3,373,894
Addition of 750,000, 550,000 and - partnership shares, respectively	[1]	4,192,446
Redemption of (300,000), (-) and (150,000) partnership shares, respectively	[1]	0
Net income (loss)		(214,880)	[1]	(214,880)
Balances at end of period at Dec. 31, 2020		7,351,460	[1]	7,351,460
Addition of 750,000, 550,000 and - partnership shares, respectively	[1]	8,382,719
Redemption of (300,000), (-) and (150,000) partnership shares, respectively	[1]	(2,581,258)
Net income (loss)		3,159,665	[1]	3,159,665
Balances at end of period at Dec. 31, 2021		$ 16,312,586	[1]	$ 16,312,586

[1]	General Partners’ shares outstanding and capital for the periods presented were zero.

Statement of Changes in Partn_2

Statement of Changes in Partners' Capital (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Addition of partnership share	750,000	550,000
Redemption of partnership shares	300,000		150,000
Partners Capital	$ 16,312,586	$ 7,351,460
General Partner [Member]
Partners' shares outstanding	0	0	0
Partners Capital	$ 0	$ 0	$ 0

Statements of Cash Flows

Statements of Cash Flows - USD ($)		12 Months Ended
Statements of Cash Flows - USD ($)		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows from Operating Activities:
Net income (loss)		$ 3,159,665	$ (214,880)	$ (814,326)
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		(570,473)	(413,714)	389,575
(Increase) decrease in receivable from General Partner		(68,213)	13,767	(14,346)
(Increase) decrease in dividends receivable		(263)	649	1,921
(Increase) decrease in interest receivable		95	73	42
(Increase) decrease in prepaid insurance*	[1]	(349)	24	(120)
(Increase) decrease in other assets			0	216
Increase (decrease) in payable due to Broker			0	(81,581)
Increase (decrease) in General Partner management fees payable		6,545	1,336	(950)
Increase (decrease) in professional fees payable		33,646	(32,027)	5,541
Increase (decrease) in brokerage commissions payable			(180)	0
Increase (decrease) in directors' fees payable	[1]	742	1,927	(22)
Increase (decrease) in insurance payable		(42)	(983)	(516)
Net cash provided by (used in) operating activities		2,561,353	(644,008)	(514,566)
Cash Flows from Financing Activities:
Addition of partnership shares		8,382,719	4,192,446	0
Redemption of partnership shares		(2,581,258)	0	(1,454,651)
Net cash provided by (used in) financing activities		5,801,461	4,192,446	(1,454,651)
Net Increase (Decrease) in Cash and Cash Equivalents		8,362,814	3,548,438	(1,969,217)
Total Cash, Cash Equivalents and Equity in Trading Accounts, beginning of year		7,343,143	3,794,705	5,763,922
Total Cash, Cash Equivalents and Equity in Trading Accounts, end of year		$ 15,705,957	$ 7,343,143	$ 3,794,705

[1]	Certain prior year amounts have been reclassified for consistency with the current presentation.

Statements of Cash Flows (Paren

Statements of Cash Flows (Parenthetical) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components of Cash and Cash Equivalents:
Cash and cash equivalents	$ 14,360,397	$ 6,497,522	$ 2,990,732
Equity in Trading Accounts:
Cash and cash equivalents	1,345,560	845,621	803,973
Total Cash, Cash Equivalents and Equity in Trading Accounts	$ 15,705,957	$ 7,343,143	$ 3,794,705

ORGANIZATION AND BUSINESS

ORGANIZATION AND BUSINESS	12 Months Ended
ORGANIZATION AND BUSINESS	Dec. 31, 2021
ORGANIZATION AND BUSINESS
ORGANIZATION AND BUSINESS	NOTE 1 — ORGANIZATION AND BUSINESS The United States 12 Month Natural Gas Fund, LP (“UNL”) was organized as a limited partnership under the laws of the state of Delaware on June 27, 2007. UNL is a commodity pool that issues limited partnership shares (“shares”) that may be purchased and sold on the NYSE Arca, Inc. (the “NYSE Arca”). UNL will continue in perpetuity, unless terminated sooner upon the occurrence of one or more events as described in its Third Amended and Restated Agreement of Limited Partnership dated as of December 15, 2017 (the “LP Agreement”). The investment objective of UNL 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 average of the prices of 12 futures contracts for natural gas traded on the New York Mercantile Exchange (the “NYMEX”), consisting of the near month contract to expire and the contracts for the following 11 months for a total of 12 consecutive months’ contracts, 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 and the contracts for the following 11 consecutive months (the “Benchmark Futures Contracts”), plus interest earned on UNL’s collateral holdings, less UNL’s expenses. When calculating the daily movement of the average price of the 12 contracts, each contract month is equally weighted. UNL 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 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 UNL to invest in Other Natural Gas-Related Investments include those allowing UNL 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. In addition, USCF believes that market arbitrage opportunities will cause daily changes in UNL’s share price on the NYSE Arca on a percentage basis to closely track daily changes in UNL’s per share NAV on a percentage basis. USCF further believes that the daily changes in average of the prices of the Benchmark Futures Contracts have historically closely tracked the daily changes in the spot price of natural gas. USCF believes that the net effect of these two expected relationships will be that the daily changes in the price of UNL’s shares on the NYSE Arca on a percentage basis will continue to closely track the daily changes in the spot price of natural gas on a percentage basis, less UNL’s expenses. Specifically, UNL seeks to achieve its investment objective by investing so that the average daily percentage change in UNL’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 Contracts over the same period. Investors should be aware that UNL’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 UNL’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 UNL’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 UNL’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). United States Commodity Funds LLC (“USCF”), the general partner of UNL, believes that it is not practical to manage the portfolio to achieve such an investment goal when investing in Futures Contracts (as defined below) and Other Natural Gas-Related Investments (as defined below). As of December 31, 2021, UNL held 441 Futures Contracts for natural gas traded on the NYMEX and did not hold any Futures Contracts traded on ICE Futures US. UNL commenced investment operations on November 18, 2009 and has a fiscal year ending on December 31. USCF is responsible for the management of UNL. 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 Natural Gas Fund, LP (“UNG”), 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 American Stock Exchange (the “AMEX”) under the ticker symbols “USO” on April 10, 2006, “UNG” on April 18, 2007, “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, UNG’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 Brent Oil Fund, LP (“BNO”), which listed its limited partnership shares on the NYSE Arca under the ticker symbol “BNO” on June 2, 2010. 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. USO, UNG, UGA, USL, BNO, USCI and CPER are referred to collectively herein as the “Related Public Funds.” UNL issues shares to certain authorized purchasers (“Authorized Participants”) by offering baskets consisting of 50,000 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 a transaction fee of $350 to UNL for each order placed to create one or more Creation Baskets or to redeem one or more baskets (“Redemption Baskets”), consisting of 50,000 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 UNL but rather at market prices quoted on such exchange. In November 2009, UNL initially registered 30,000,000 shares on Form S-1 with the U.S. Securities and Exchange Commission (the “SEC”). On November 18, 2009, UNL listed its shares on the NYSE Arca under the ticker symbol “UNL”. On that day, UNL established its initial per share NAV by setting the price at $50.00 and issued 200,000 shares in exchange for $10,000,000. UNL also commenced investment operations on November 18, 2009, by purchasing Futures Contracts traded on the NYMEX based on natural gas. As of December 31, 2021, UNL had registered a total of 30,000,000 shares.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Dec. 31, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	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. UNL is an investment company for accounting purposes and follows the accounting and reporting guidance in FASB Topic 946. Revenue Recognition Commodity futures contracts, 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 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. UNL 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 UNL 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, UNL 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. UNL files an income tax return in the U.S. federal jurisdiction and may file income tax returns in various U.S. states. UNL 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 UNL recording a tax liability that reduces net assets. However, UNL’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. UNL 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 50,000 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. UNL 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 UNL’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 UNL 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 UNL 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 UNL’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. UNL 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 UNL. 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.

FEES PAID BY THE FUND AND RELAT

FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS	12 Months Ended
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS	Dec. 31, 2021
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS	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 UNL in accordance with the objectives and policies of UNL. In addition, USCF has arranged for one or more third parties to provide administrative, custody, accounting, transfer agency and other necessary services to UNL. For these services, UNL is contractually obligated to pay USCF a fee, which is paid monthly, equal to 0.75% per annum of average daily total net assets. Ongoing Registration Fees and Other Offering Expenses UNL 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, UNL did not incur registration fees and other offering expenses. Independent Directors’ and Officers’ Expenses UNL is responsible for paying its portion of the directors’ and officers’ liability insurance for UNL and the Related Public Funds and the fees and expenses of the independent directors who also serve as audit committee members of UNL and the Related Public Funds. UNL 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 of $12,755 for UNL and, in the aggregate for UNL and the Related Public Funds, $1,081,963. For the year ended December 31, 2020 these fees and expenses were $585,896 for UNL and the Related Public Funds. UNL’s portion of such fees and expenses for the year ended December 31, 2020 was $2,711. For the year ended December 31, 2019, these fees and expenses were $556,951 for UNL and the Related Public Funds. UNL’s portion of such fees and expenses for the year ended December 31, 2019 was $1,096. Licensing Fees As discussed in Note 4 below, UNL entered into a licensing agreement with the NYMEX on December 4, 2007, as amended on October 20, 2011. Pursuant to the agreement, UNL 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, UNL incurred $1,716, $718 and $651, respectively under this arrangement. Investor Tax Reporting Cost The fees and expenses associated with UNL’s audit expenses and tax accounting and reporting requirements are paid by UNL. These costs are estimated to be $114,000 for the year ending December 31, 2021. For the years ending December 31, 2020 and 2019 UNL’s investor reporting costs totaled $62,653 and $77,834 respectively. Tax reporting costs fluctuate between years due to the number of shareholders during any given year. Other Expenses and Fees and Expense Waivers In addition to the fees described above, UNL pays all brokerage fees and other expenses in connection with the operation of UNL, excluding costs and expenses paid by USCF as outlined in Note 4 - Contracts and Agreements below Note 4 - Contracts and Agreements.

CONTRACTS AND AGREEMENTS

CONTRACTS AND AGREEMENTS	12 Months Ended
CONTRACTS AND AGREEMENTS	Dec. 31, 2021
CONTRACTS AND AGREEMENTS
CONTRACTS AND AGREEMENTS	NOTE 4 — CONTRACTS AND AGREEMENTS Marketing Agent Agreement UNL is party to a marketing agent agreement, dated as of October 30, 2009, as amended from time to time, with the Marketing Agent and USCF, whereby the Marketing Agent provides certain marketing services for UNL as outlined in the agreement. The fee of the Marketing Agent, which is borne by USCF, is equal to 0.06% on UNL’s assets up to $3 billion and 0.04% on UNL’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% of the gross proceeds of UNL’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 UNL 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 UNL 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 UNL and the Related Public Funds terminated on May 31, 2020 to allow for the transition to BNY Mellon. Brokerage and Futures Commission Merchant Agreements UNL entered into a brokerage agreement with RBC Capital Markets LLC (“RBC”) to serve as UNL’s FCM effective October 10, 2013. UNL 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 UNL effective on May 28, 2020, June 5, 2020, and December 3, 2020, respectively. The agreements with UNL’s FCMs require the FCMs to provide services to UNL 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 UNL’s account. In accordance with the FCM agreements, UNL 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 UNL 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 UNL 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. UNL 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”). Year ended Year ended Year ended December 31, December 31, December 31, 2021 2020 2019 Total commissions accrued to brokers $ 3,199 $ 1,633 $ 1,231 Total commissions as annualized percentage of average total net assets 0.03 % 0.03 % 0.03 % Commissions accrued as a result of rebalancing $ 2,250 $ 1,153 $ 1,084 Percentage of commissions accrued as a result of rebalancing 70.33 % 70.61 % 88.06 % Commissions accrued as a result of creation and redemption activity $ 949 $ 480 $ 147 Percentage of commissions accrued as a result of creation and redemption activity 29.67 % 29.39 % 11.94 % The increase 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 higher number of natural gas futures contracts being held and traded. NYMEX Licensing Agreement UNL and NYMEX entered into a licensing agreement on December 4, 2007, as amended on October 20, 2011, whereby UNL was granted a non-exclusive license to use certain of the NYMEX’s settlement prices and service marks. Under the licensing agreement, UNL 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. UNL expressly disclaims any association with the NYMEX or endorsement of UNL by the NYMEX and acknowledges that “NYMEX” and “New York Mercantile Exchange” are registered trademarks of the NYMEX.

FINANCIAL INSTRUMENTS, OFF-BALA

FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2021
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES	NOTE 5 — FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES UNL may engage in the trading of futures contracts, options on futures contracts, cleared swaps and OTC swaps (collectively, “derivatives”). UNL 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. UNL 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, UNL 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 UNL 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 UNL and reflect the consequences as appropriate in UNL’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 UNL and its investments. All of the futures contracts held by UNL 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 UNL 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. UNL 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, UNL bears the risk of financial failure by the clearing broker. UNL’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 UNL’s assets posted with that FCM; however, the majority of UNL’s assets are held in investments in Treasuries, cash and/or cash equivalents with UNL’s custodian and would not be impacted by the insolvency of an FCM. The failure or insolvency of UNL’s custodian, however, could result in a substantial loss of UNL’s assets. USCF invests a portion of UNL’s cash in money market funds that seek to maintain a stable per share NAV. UNL 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, UNL held investments in money market funds in the amounts of $14,000,000 and $1,000,000, respectively. UNL also holds cash deposits with its custodian. As of December 31, 2021 and December 31, 2020, UNL held cash deposits and investments in Treasuries in the amounts of $1,705,957 and $6,343,143 respectively, with the custodian and FCMs. Some or all of these amounts may be subject to loss should UNL’s custodian and/or FCMs cease operations. For derivatives, risks arise from changes in the market value of the contracts. Theoretically, UNL 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, UNL 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. UNL’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, UNL 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 UNL 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.

FINANCIAL HIGHLIGHTS

FINANCIAL HIGHLIGHTS	12 Months Ended
FINANCIAL HIGHLIGHTS	Dec. 31, 2021
FINANCIAL HIGHLIGHTS
FINANCIAL HIGHLIGHTS	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. Year ended Year ended Year ended December 31, December 31, December 31, 2021 2020 2019 Per Share Operating Performance: Net asset value, beginning of year $ 7.74 $ 8.43 $ 10.26 Total income (loss) 4.01 (0.62) (1.74) Total expenses (0.10) (0.07) (0.09) Net increase (decrease) in net asset value 3.91 (0.69) (1.83) Net asset value, end of year $ 11.65 $ 7.74 $ 8.43 Total Return 50.52 % (8.19) % (17.84) % Ratios to Average Net Assets Total income (loss) 28.53 % (3.59) % (17.87) % Management fees 0.75 % 0.75 % 0.75 % Total expenses excluding management fees 1.28 % 1.41 % 1.86 % Expense waived (1.13) % (1.26) % (1.71) % Net expense excluding management fees 0.15 % 0.15 % 0.15 % Net income (loss) 27.63 % (4.49) % (18.77) % 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 UNL.

QUARTERLY FINANCIAL DATA (Unaud

QUARTERLY FINANCIAL DATA (Unaudited)	12 Months Ended
QUARTERLY FINANCIAL DATA (Unaudited)	Dec. 31, 2021
QUARTERLY FINANCIAL DATA (Unaudited)
QUARTERLY FINANCIAL DATA (Unaudited)	NOTE 7 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. First Second Third Fourth Quarter Quarter Quarter Quarter 2021 2021 2021 2021 Total Income (Loss) $ 116,939 $ 2,198,433 $ 4,608,063 $ (3,660,845) Total Expenses 47,470 60,037 64,948 59,218 Expense Waivers (30,045) (39,639) (38,328) (20,736) Net Expense 17,425 20,398 26,620 38,482 Net Income (Loss) $ 99,514 $ 2,178,035 $ 4,581,443 $ (3,699,327) Net Income (Loss) per Share $ 0.15 $ 2.09 $ 4.50 $ (2.83) First Second Third Fourth Quarter Quarter Quarter Quarter 2020 2020 2020 2020 Total Income (Loss) $ (315,759) $ (79,714) $ 784,562 $ (560,865) Total Expenses 22,976 26,044 27,598 27,021 Expense Waivers (16,022) (17,683) (14,037) (12,793) Net Expense 6,954 8,361 13,561 14,228 Net Income (Loss) $ (322,713) $ (88,075) $ 771,001 $ (575,093) Net Income (Loss) per Share $ (0.80) $ (0.08) $ 1.02 $ (0.83) 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.

FAIR VALUE OF FINANCIAL INSTRUM

FAIR VALUE OF FINANCIAL INSTRUMENTS	12 Months Ended
FAIR VALUE OF FINANCIAL INSTRUMENTS	Dec. 31, 2021
FAIR VALUE OF FINANCIAL INSTRUMENTS
FAIR VALUE OF FINANCIAL INSTRUMENTS	NOTE 8 — FAIR VALUE OF FINANCIAL INSTRUMENTS UNL 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 UNL (observable inputs) and (2) UNL’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 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 UNL’s securities at December 31, 2021 using the fair value hierarchy: At December 31, 2021 Total Level I Level II Level III Short-Term Investments $ 14,000,000 $ 14,000,000 $ — $ — Exchange-Traded Futures Contracts United States Contracts 548,509 548,509 — — The following table summarizes the valuation of UNL’s securities at December 31, 2020 using the fair value hierarchy: At December 31, 2020 Total Level I Level II Level III Short-Term Investments $ 1,000,000 $ 1,000,000 $ — $ — Exchange-Traded Futures Contracts United States Contracts (21,964) (21,964) — — Effective January 1, 2009, UNL 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 Statements of Financial Fair Value at Fair Value at Condition December 31, December 31, Derivatives not Accounted for as Hedging Instruments Location 2021 2020 Futures - Commodity Contracts Assets $ 548,509 $ (21,964) The Effect of Derivative Instruments on the Statements of Operations For the year ended For the year ended For the year ended December 31, December 31, December 31, 2021 2020 2019 Change in Change in Change in Unrealized Realized Unrealized Realized Unrealized Derivatives Location of Realized Gain Gain Gain Gain Gain not Gain (Loss) gain (Loss) on (Loss) on (Loss) in (Loss) on (Loss) in (Loss) on Accounted on Derivatives Derivatives Derivatives Derivatives Derivatives Derivatives for as Derivatives Recognized Recognized Recognized Recognized Recognized Recognized Hedging Recognized in in in in in in Instruments in Income Income Income Income Income Income Income Futures - Commodity Contracts Realized gain (loss) on closed positions $ 2,685,138 $ (608,115) $ (479,014) Change in unrealized gain (loss) on open positions $ 570,473 $ 413,714 $ (389,575)

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS	12 Months Ended
RECENT ACCOUNTING PRONOUNCEMENTS	Dec. 31, 2021
RECENT ACCOUNTING PRONOUNCEMENTS
RECENT ACCOUNTING PRONOUNCEMENTS	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 UNL’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. UNL has evaluated the implications of certain provisions of the ASU and has determined that there will be no material impacts to the financial statements.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
SUBSEQUENT EVENTS	Dec. 31, 2021
SUBSEQUENT EVENTS
SUBSEQUENT EVENTS	NOTE 10 — SUBSEQUENT EVENTS UNL 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.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Dec. 31, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation	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. UNL is an investment company for accounting purposes and follows the accounting and reporting guidance in FASB Topic 946.
Revenue Recognition	Revenue Recognition Commodity futures contracts, 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 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. UNL 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 Brokerage commissions on all open commodity futures contracts are accrued on a full-turn basis.
Income Taxes	Income Taxes UNL 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, UNL 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. UNL files an income tax return in the U.S. federal jurisdiction and may file income tax returns in various U.S. states. UNL 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 UNL recording a tax liability that reduces net assets. However, UNL’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. UNL 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	Creations and Redemptions Authorized Participants may purchase Creation Baskets or redeem Redemption Baskets only in blocks of 50,000 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. UNL 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 UNL’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 UNL 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	Partnership Capital and Allocation of Partnership Income and Losses Profit or loss shall be allocated among the partners of UNL 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	Calculation of Per Share NAV UNL’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. UNL 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 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 Offering costs incurred in connection with the registration of additional shares after the initial registration of shares are borne by UNL. 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 Cash equivalents include money market funds and overnight deposits or time deposits with original maturity dates of six months or less.
Reclassification	Reclassification Certain amounts in the accompanying financial statements were reclassified to conform to the current presentation.
Use of Estimates	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.

CONTRACTS AND AGREEMENTS (Table

CONTRACTS AND AGREEMENTS (Tables)	12 Months Ended
CONTRACTS AND AGREEMENTS (Tables)	Dec. 31, 2021
CONTRACTS AND AGREEMENTS
Schedule of Brokerage and Futures Commissions	Year ended Year ended Year ended December 31, December 31, December 31, 2021 2020 2019 Total commissions accrued to brokers $ 3,199 $ 1,633 $ 1,231 Total commissions as annualized percentage of average total net assets 0.03 % 0.03 % 0.03 % Commissions accrued as a result of rebalancing $ 2,250 $ 1,153 $ 1,084 Percentage of commissions accrued as a result of rebalancing 70.33 % 70.61 % 88.06 % Commissions accrued as a result of creation and redemption activity $ 949 $ 480 $ 147 Percentage of commissions accrued as a result of creation and redemption activity 29.67 % 29.39 % 11.94 %

FINANCIAL HIGHLIGHTS (Tables)

FINANCIAL HIGHLIGHTS (Tables)	12 Months Ended
FINANCIAL HIGHLIGHTS (Tables)	Dec. 31, 2021
FINANCIAL HIGHLIGHTS
Schedule of per share performance data and other supplemental financial data	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. Year ended Year ended Year ended December 31, December 31, December 31, 2021 2020 2019 Per Share Operating Performance: Net asset value, beginning of year $ 7.74 $ 8.43 $ 10.26 Total income (loss) 4.01 (0.62) (1.74) Total expenses (0.10) (0.07) (0.09) Net increase (decrease) in net asset value 3.91 (0.69) (1.83) Net asset value, end of year $ 11.65 $ 7.74 $ 8.43 Total Return 50.52 % (8.19) % (17.84) % Ratios to Average Net Assets Total income (loss) 28.53 % (3.59) % (17.87) % Management fees 0.75 % 0.75 % 0.75 % Total expenses excluding management fees 1.28 % 1.41 % 1.86 % Expense waived (1.13) % (1.26) % (1.71) % Net expense excluding management fees 0.15 % 0.15 % 0.15 % Net income (loss) 27.63 % (4.49) % (18.77) %

QUARTERLY FINANCIAL DATA (Una_2

QUARTERLY FINANCIAL DATA (Unaudited) (Tables)	12 Months Ended
QUARTERLY FINANCIAL DATA (Unaudited) (Tables)	Dec. 31, 2021
QUARTERLY FINANCIAL DATA (Unaudited)
Schedule of Quarterly Financial Information	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. First Second Third Fourth Quarter Quarter Quarter Quarter 2021 2021 2021 2021 Total Income (Loss) $ 116,939 $ 2,198,433 $ 4,608,063 $ (3,660,845) Total Expenses 47,470 60,037 64,948 59,218 Expense Waivers (30,045) (39,639) (38,328) (20,736) Net Expense 17,425 20,398 26,620 38,482 Net Income (Loss) $ 99,514 $ 2,178,035 $ 4,581,443 $ (3,699,327) Net Income (Loss) per Share $ 0.15 $ 2.09 $ 4.50 $ (2.83) First Second Third Fourth Quarter Quarter Quarter Quarter 2020 2020 2020 2020 Total Income (Loss) $ (315,759) $ (79,714) $ 784,562 $ (560,865) Total Expenses 22,976 26,044 27,598 27,021 Expense Waivers (16,022) (17,683) (14,037) (12,793) Net Expense 6,954 8,361 13,561 14,228 Net Income (Loss) $ (322,713) $ (88,075) $ 771,001 $ (575,093) Net Income (Loss) per Share $ (0.80) $ (0.08) $ 1.02 $ (0.83)

FAIR VALUE OF FINANCIAL INSTR_2

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	Dec. 31, 2021
FAIR VALUE OF FINANCIAL INSTRUMENTS
Schedule of UNL's Securities Using the Fair Value Hierarchy	The following table summarizes the valuation of UNL’s securities at December 31, 2021 using the fair value hierarchy: At December 31, 2021 Total Level I Level II Level III Short-Term Investments $ 14,000,000 $ 14,000,000 $ — $ — Exchange-Traded Futures Contracts United States Contracts 548,509 548,509 — — The following table summarizes the valuation of UNL’s securities at December 31, 2020 using the fair value hierarchy: At December 31, 2020 Total Level I Level II Level III Short-Term Investments $ 1,000,000 $ 1,000,000 $ — $ — Exchange-Traded Futures Contracts United States Contracts (21,964) (21,964) — —
Schedule of Fair Value of Derivative Instruments	Fair Value of Derivative Instruments Statements of Financial Fair Value at Fair Value at Condition December 31, December 31, Derivatives not Accounted for as Hedging Instruments Location 2021 2020 Futures - Commodity Contracts Assets $ 548,509 $ (21,964)
Schedule of Effect of Derivative Instruments on the Statements of Operations	The Effect of Derivative Instruments on the Statements of Operations For the year ended For the year ended For the year ended December 31, December 31, December 31, 2021 2020 2019 Change in Change in Change in Unrealized Realized Unrealized Realized Unrealized Derivatives Location of Realized Gain Gain Gain Gain Gain not Gain (Loss) gain (Loss) on (Loss) on (Loss) in (Loss) on (Loss) in (Loss) on Accounted on Derivatives Derivatives Derivatives Derivatives Derivatives Derivatives for as Derivatives Recognized Recognized Recognized Recognized Recognized Recognized Hedging Recognized in in in in in in Instruments in Income Income Income Income Income Income Income Futures - Commodity Contracts Realized gain (loss) on closed positions $ 2,685,138 $ (608,115) $ (479,014) Change in unrealized gain (loss) on open positions $ 570,473 $ 413,714 $ (389,575)

ORGANIZATION AND BUSINESS (Deta

ORGANIZATION AND BUSINESS (Details)	1 Months Ended		12 Months Ended
ORGANIZATION AND BUSINESS (Details)	Nov. 30, 2009shares	Nov. 18, 2009USD ($)$ / sharesshares	Dec. 31, 2021$ / shares$ / itemshares	Dec. 31, 2020$ / shares	Dec. 31, 2019$ / shares	Dec. 31, 2018$ / shares
ORGANIZATION AND BUSINESS
Fee paid by Authorized Purchasers for each order placed to create one or more Creation Baskets or to redeem one or more baskets \| $ / item			350
Number of initially registered units on Form S-1 with the U.S. Securities and Exchange Commission	30,000,000
Net asset value per share \| $ / shares		$ 50	$ 11.65	$ 7.74	$ 8.43	$ 10.26
Number of units issued		200,000
Value of unit issued \| $		$ 10,000,000
Commenced investment operations date	Nov. 18, 2009
Number of registered units			30,000,000
Creation Baskets [Member]
ORGANIZATION AND BUSINESS
Number of units per basket \| $ / item			50,000

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	Dec. 31, 2021USD ($)$ / item
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Unrecognized tax benefits accrued for interest and penalties \| $	$ 0
Fee paid by Authorized Purchasers for each order placed to create one or more Creation Baskets or to redeem one or more baskets	350
Redemption Baskets [Member]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Number of units per basket	50,000

FEES PAID BY THE FUND AND REL_2

FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Estimated directors fees and expenses									$ 12,755	$ 2,711	$ 1,096
Licensing fee incurred									1,716	718	651
Expense waiver	$ 20,736	$ 38,328	$ 39,639	$ 30,045	$ 12,793	$ 14,037	$ 17,683	$ 16,022	$ 128,748	60,535	74,303
Licensing Agreements [Member]
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fee percentage									0.015%
UNL [Member]
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Percentage of contractual obligated to pay									0.75%
Estimated directors fees and expenses									$ 12,755	2,711	1,096
Estimated costs									114,000
Investor reporting costs										62,653	77,834
UNL [Member] \| Related Public Funds [Member]
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Estimated directors fees and expenses									$ 1,081,963	$ 585,896	$ 556,951

CONTRACTS AND AGREEMENTS - Brok

CONTRACTS AND AGREEMENTS - Brokerage and Futures Commissions Merchant Agreements (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Total commissions accrued to brokers	$ 3,199	$ 1,633	$ 1,231
Total commissions as annualized percentage of average total net assets	0.03%	0.03%	0.03%
Rebalancing Investments Transaction [Member]
Total commissions accrued to brokers	$ 2,250	$ 1,153	$ 1,084
Total commissions as annualized percentage of average total net assets	70.33%	70.61%	88.06%
Creation And Redemption Activity [Member]
Total commissions accrued to brokers	$ 949	$ 480	$ 147
Total commissions as annualized percentage of average total net assets	29.67%	29.39%	11.94%

CONTRACTS AND AGREEMENTS - Addi

CONTRACTS AND AGREEMENTS - Additional Information (Details) $ in Billions	12 Months Ended
	Dec. 31, 2021USD ($)$ / item
Maximum [Member]
CONTRACTS AND AGREEMENTS
Commissions per round-turn trade, including applicable exchange and NFA fees for Natural Gas-Related Futures Contracts and options on Futures Contracts \| $ / item	8
Minimum [Member]
CONTRACTS AND AGREEMENTS
Commissions per round-turn trade, including applicable exchange and NFA fees for Natural Gas-Related Futures Contracts and options on Futures Contracts \| $ / item	7
Marketing Agent And Affiliate Of USCF [Member]
CONTRACTS AND AGREEMENTS
Maximum Aggregate Compensation Paid For Distribution Related Services	10.00%
Marketing Agreement [Member] \| UNL's assets up to $3 billion [Member]
CONTRACTS AND AGREEMENTS
Fee percentage	0.06%
Base amount for determining fee percentage \| $	$ 3
Marketing Agreement [Member] \| UNL's assets in excess of $3 billion [Member]
CONTRACTS AND AGREEMENTS
Fee percentage	0.04%
Base amount for determining fee percentage \| $	$ 3

FINANCIAL INSTRUMENTS, OFF-BA_2

FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES
Cash investments in money market funds	$ 14,000,000	$ 1,000,000
Deposits in domestic and foreign financial institutions	$ 1,705,957	$ 6,343,143

FINANCIAL HIGHLIGHTS (Details)

FINANCIAL HIGHLIGHTS (Details) - $ / shares	12 Months Ended
FINANCIAL HIGHLIGHTS (Details) - $ / shares	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Per Share Operating Performance:
Net asset value, beginning of year	$ 7.74	$ 8.43	$ 10.26
Total income (loss)	4.01	(0.62)	(1.74)
Total expenses	(0.10)	(0.07)	(0.09)
Net increase (decrease) in net asset value	3.91	(0.69)	(1.83)
Net asset value, end of year	$ 11.65	$ 7.74	$ 8.43
Total Return	50.52%	(8.19%)	(17.84%)
Ratios to Average Net Assets
Total income (loss)	28.53%	(3.59%)	(17.87%)
Management fees	0.75%	0.75%	0.75%
Total expenses excluding management fees	1.28%	1.41%	1.86%
Expense waived	(1.13%)	(1.26%)	(1.71%)
Net expense excluding management fees	0.15%	0.15%	0.15%
Net income (loss)	27.63%	(4.49%)	(18.77%)

QUARTERLY FINANCIAL DATA (Una_3

QUARTERLY FINANCIAL DATA (Unaudited) (Quarterly Financial Information Presents The Results Of Operations) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
QUARTERLY FINANCIAL DATA (Unaudited)
Total Income (Loss)	$ (3,660,845)	$ 4,608,063	$ 2,198,433	$ 116,939	$ (560,865)	$ 784,562	$ (79,714)	$ (315,759)	$ 3,262,590	$ (171,776)	$ (775,272)
Total Expenses	59,218	64,948	60,037	47,470	27,021	27,598	26,044	22,976	231,673	103,639	113,357
Expense Waivers	(20,736)	(38,328)	(39,639)	(30,045)	(12,793)	(14,037)	(17,683)	(16,022)	(128,748)	(60,535)	(74,303)
Net Expenses	38,482	26,620	20,398	17,425	14,228	13,561	8,361	6,954	102,925	43,104	39,054
Net Income (Loss)	$ (3,699,327)	$ 4,581,443	$ 2,178,035	$ 99,514	$ (575,093)	$ 771,001	$ (88,075)	$ (322,713)	$ 3,159,665	$ (214,880)	$ (814,326)
Net Income (Loss) per Share	$ (2.83)	$ 4.50	$ 2.09	$ 0.15	$ (0.83)	$ 1.02	$ (0.08)	$ (0.80)	$ 3.91	$ (0.69)	$ (1.83)

FAIR VALUE OF FINANCIAL INSTR_3

FAIR VALUE OF FINANCIAL INSTRUMENTS - UNL's Securities Fair Value Hierarchy (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
United States [Member]
FAIR VALUE OF FINANCIAL INSTRUMENTS
Securities, fair value	$ 548,509	$ (21,964)
Short-Term Investments [Member]
FAIR VALUE OF FINANCIAL INSTRUMENTS
Securities, fair value	14,000,000	1,000,000
Fair Value, Inputs, Level 1 [Member] \| United States [Member]
FAIR VALUE OF FINANCIAL INSTRUMENTS
Securities, fair value	548,509	(21,964)
Fair Value, Inputs, Level 1 [Member] \| Short-Term Investments [Member]
FAIR VALUE OF FINANCIAL INSTRUMENTS
Securities, fair value	$ 14,000,000	$ 1,000,000

FAIR VALUE OF FINANCIAL INSTR_4

FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value of Derivative Instruments (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
FAIR VALUE OF FINANCIAL INSTRUMENTS
Derivatives not Accounted for as Hedging Instruments	$ 548,509	$ (21,964)
Commodity Contracts [Member] \| Futures [Member] \| Assets [Member]
FAIR VALUE OF FINANCIAL INSTRUMENTS
Derivatives not Accounted for as Hedging Instruments	$ 548,509	$ (21,964)

FAIR VALUE OF FINANCIAL INSTR_5

FAIR VALUE OF FINANCIAL INSTRUMENTS - Effect of Derivative Instruments on Condensed Statements of Operations (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
FAIR VALUE OF FINANCIAL INSTRUMENTS
Realized Gain (Loss) on Derivatives Recognized in Income	$ 2,685,138	$ (608,115)	$ (479,014)
Change in Unrealized Gain (Loss) on Derivatives Recognized in Income	570,473	413,714	(389,575)
Commodity Contracts [Member] \| Futures [Member] \| Not Designated as Hedging Instrument [Member] \| Realized gain (loss) on closed futures contracts
FAIR VALUE OF FINANCIAL INSTRUMENTS
Realized Gain (Loss) on Derivatives Recognized in Income	2,685,138	(608,115)	(479,014)
Commodity Contracts [Member] \| Futures [Member] \| Not Designated as Hedging Instrument [Member] \| Change in unrealized gain (loss) on open positions
FAIR VALUE OF FINANCIAL INSTRUMENTS
Change in Unrealized Gain (Loss) on Derivatives Recognized in Income	$ 570,473	$ 413,714	$ (389,575)