USCF Funds Trust (USOD) 10-K28 Mar 182017 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, 2017	Mar. 26, 2018	Jun. 30, 2017
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Entity Registrant Name	USCF Funds Trust
Entity Central Index Key	1,671,686
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Public Float			$ 0
Entity Common Stock, Shares Outstanding		250,080
United States 3x Oil Fund [Member]
Document Information [Line Items]
Entity Public Float			0
Entity Common Stock, Shares Outstanding		100,040
United States 3x Short Oil Fund [Member]
Document Information [Line Items]
Entity Public Float			$ 0
Entity Common Stock, Shares Outstanding		150,040

Statement of Financial Conditio

Statement of Financial Condition	Dec. 31, 2017USD ($)$ / sharesshares
Assets
Cash and cash equivalents	$ 2,047,007	[1]
Equity in trading accounts:
Cash and cash equivalents	3,050,774
Unrealized gain (loss) on open commodity futures contracts	509,180
Interest receivable	3,284
Other assets	1,696
Total assets	5,611,941
Liabilities and Capital
Management fees payable (Note 4)	4,249
Total liabilities	4,249
Commitments and Contingencies (Notes 4, 5 and 6)
Capital
Sponsor	4,000
Shareholders	5,603,692
Total Capital	5,607,692
Total liabilities and capital	$ 5,611,941
Shares outstanding \| shares	200,080
United States 3x Oil Fund [Member]
Assets
Cash and cash equivalents	$ 1,200,864	[1]
Equity in trading accounts:
Cash and cash equivalents	2,579,835
Unrealized gain (loss) on open commodity futures contracts	703,240
Interest receivable	2,708
Other assets	848
Total assets	4,487,495
Liabilities and Capital
Management fees payable (Note 4)	2,850
Total liabilities	2,850
Commitments and Contingencies (Notes 4, 5 and 6)
Capital
Sponsor	1,000
Shareholders	4,483,645
Total Capital	4,484,645
Total liabilities and capital	$ 4,487,495
Shares outstanding \| shares	100,040
Net asset value per share \| $ / shares	$ 44.83	[1]
Market value per share \| $ / shares	$ 42.99
United States 3x Short Oil Fund [Member]
Assets
Cash and cash equivalents	$ 844,143	[1]
Equity in trading accounts:
Cash and cash equivalents	470,939
Unrealized gain (loss) on open commodity futures contracts	(194,060)
Interest receivable	576
Other assets	848
Total assets	1,122,446
Liabilities and Capital
Management fees payable (Note 4)	1,399
Total liabilities	1,399
Commitments and Contingencies (Notes 4, 5 and 6)
Capital
Sponsor	1,000
Shareholders	1,120,047
Total Capital	1,121,047
Total liabilities and capital	$ 1,122,446
Shares outstanding \| shares	100,040
Net asset value per share \| $ / shares	$ 11.21	[1]
Market value per share \| $ / shares	$ 11.32
REX S&P MLP Fund [Member]
Assets
Cash and cash equivalents	$ 1,000	[2]
Equity in trading accounts:
Total assets	1,000	[2]
Liabilities and Capital
Commitments and Contingencies (Notes 4, 5 and 6)		[2]
Capital
Sponsor	1,000	[2]
Shareholders	0	[2]
Total Capital	1,000	[2]
Total liabilities and capital	1,000	[2]
Rex S&P MLP Inverse Fund [Member]
Assets
Cash and cash equivalents	1,000	[3]
Equity in trading accounts:
Total assets	1,000	[3]
Liabilities and Capital
Commitments and Contingencies (Notes 4, 5 and 6)		[3]
Capital
Sponsor	1,000	[3]
Shareholders	0	[3]
Total Capital	1,000	[3]
Total liabilities and capital	$ 1,000	[3]

[1]	Commencement of operations, July 20, 2017.
[2]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[3]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.

Statement of Financial Conditi3

Statement of Financial Condition (Parenthetical) - USD ($)	Dec. 31, 2017		Apr. 15, 2016	Mar. 31, 2016
Sponsor Capital Account	$ 4,000
REX S&P MLP Fund [Member]
Sponsor Capital Account	1,000	[1]		$ 1,000
REX S&P MLP Inverse Fund [Member]
Sponsor Capital Account	$ 1,000	[2]	$ 1,000

[1]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[2]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.

Schedule of Investments

Schedule of Investments	Dec. 31, 2017USD ($)Contract
United States 3x Oil Fund [Member] \| Open Futures Contracts Long [Member] \| United States Contracts [Member] \| NYMEX WTI Crude Oil Futures CL February 2018 contracts, expiring January 2018 [Member]
Notional Amount/ Market Value	$ 12,770,420	[1]
Number of Contracts \| Contract	223	[1]
Value/Unrealized Gain (Loss) on Open Commodity Contracts	$ 703,240	[1]
% of Partners' Capital	15.68%	[1]
United States 3x Oil Fund [Member] \| Cash Equivalents [Member]
Notional Amount/ Market Value	$ 1,647,421
% of Partners' Capital	36.73%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member]
Notional Amount/ Market Value	$ 647,421
% of Partners' Capital	14.43%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.12%, 2/15/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,931
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.10%, 2/22/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,921
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.09%, 3/01/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,911
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.16%, 3/22/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,872
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.17%, 3/29/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,859
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.19%, 4/05/2018 [Member]
Principal Amount	$ 100,000
Notional Amount/ Market Value	$ 99,691
% of Partners' Capital	2.22%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.23%, 4/19/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,818
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.32%, 5/10/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,765
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.43%, 5/31/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,704
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.45%, 6/07/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,686
% of Partners' Capital	1.11%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.50%, 6/28/2018 [Member]
Principal Amount	$ 100,000
Notional Amount/ Market Value	$ 99,263
% of Partners' Capital	2.22%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States - Money Market Funds [Member]
Notional Amount/ Market Value	$ 1,000,000
% of Partners' Capital	22.30%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States - Money Market Funds [Member] \| Fidelity Investments Money Market Funds - Government Portfolio [Member]
Principal Amount	$ 500,000
Notional Amount/ Market Value	$ 500,000
% of Partners' Capital	11.15%
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States - Money Market Funds [Member] \| Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member]
Principal Amount	$ 500,000
Notional Amount/ Market Value	$ 500,000
% of Partners' Capital	11.15%
United States 3x Short Oil Fund [Member] \| Open Futures Contracts - Short [Member] \| United States Contracts [Member] \| NYMEX WTI Crude Oil Futures CL February 2018 contracts, expiring January 2018 [Member]
Notional Amount/ Market Value	$ (3,129,040)	[2]
Number of Contracts \| Contract	55	[2]
Value/Unrealized Gain (Loss) on Open Commodity Contracts	$ (194,060)	[2]
% of Partners' Capital	(17.31%)	[2]
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member]
Notional Amount/ Market Value	$ 1,088,158
% of Partners' Capital	97.07%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member]
Notional Amount/ Market Value	$ 548,158
% of Partners' Capital	48.90%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.12%, 2/15/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,931
% of Partners' Capital	4.46%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.10%, 2/22/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,921
% of Partners' Capital	4.45%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.09%, 3/01/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,911
% of Partners' Capital	4.45%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.16%, 3/22/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,872
% of Partners' Capital	4.45%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.17%, 3/29/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,859
% of Partners' Capital	4.45%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.19%, 4/05/2018 [Member]
Principal Amount	$ 100,000
Notional Amount/ Market Value	$ 99,691
% of Partners' Capital	8.89%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.23%, 4/19/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,818
% of Partners' Capital	4.45%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.32%, 5/10/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,765
% of Partners' Capital	4.44%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.43%, 5/31/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,704
% of Partners' Capital	4.43%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.45%, 6/07/2018 [Member]
Principal Amount	$ 50,000
Notional Amount/ Market Value	$ 49,686
% of Partners' Capital	4.43%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States - Money Market Funds [Member]
Notional Amount/ Market Value	$ 540,000
% of Partners' Capital	48.17%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States - Money Market Funds [Member] \| Fidelity Investments Money Market Funds - Government Portfolio [Member]
Principal Amount	$ 250,000
Notional Amount/ Market Value	$ 250,000
% of Partners' Capital	22.30%
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States - Money Market Funds [Member] \| Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member]
Principal Amount	$ 290,000
Notional Amount/ Market Value	$ 290,000
% of Partners' Capital	25.87%

[1]	Collateral amounted to $2,579,835 on open futures contracts.
[2]	Collateral amounted to $470,939 on open futures contracts.

Schedule of Investments (Parent

Schedule of Investments (Parenthetical)	12 Months Ended
Schedule of Investments (Parenthetical)	Dec. 31, 2017USD ($)
United States 3x Oil Fund [Member] \| Open Futures Contracts Long [Member] \| United States Contracts [Member] \| NYMEX WTI Crude Oil Futures CL February 2018 contracts, expiring January 2018 [Member]
Debt Instrument, Collateral Amount	$ 2,579,835
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.12%, 2/15/2018 [Member]
Interest Rate	1.12%
Exercise Dates	2/15/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.10%, 2/22/2018 [Member]
Interest Rate	1.10%
Exercise Dates	2/22/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.09%, 3/01/2018 [Member]
Interest Rate	1.09%
Exercise Dates	3/01/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.16%, 3/22/2018 [Member]
Interest Rate	1.16%
Exercise Dates	3/22/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.17%, 3/29/2018 [Member]
Interest Rate	1.17%
Exercise Dates	3/29/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.19%, 4/05/2018 [Member]
Interest Rate	1.19%
Exercise Dates	4/05/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.23%, 4/19/2018 [Member]
Interest Rate	1.23%
Exercise Dates	4/19/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.32%, 5/10/2018 [Member]
Interest Rate	1.32%
Exercise Dates	5/10/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.43%, 5/31/2018 [Member]
Interest Rate	1.43%
Exercise Dates	5/31/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.45%, 6/07/2018 [Member]
Interest Rate	1.45%
Exercise Dates	6/07/2018
United States 3x Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.50%, 6/28/2018 [Member]
Interest Rate	1.50%
Exercise Dates	6/28/2018
United States 3x Short Oil Fund [Member] \| Open Futures Contracts Short [Member] \| United States Contracts [Member] \| NYMEX WTI Crude Oil Futures CL February 2018 contracts, expiring January 2018 [Member]
Debt Instrument, Collateral Amount	$ 470,939
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.12%, 2/15/2018 [Member]
Interest Rate	1.12%
Exercise Dates	2/15/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.10%, 2/22/2018 [Member]
Interest Rate	1.10%
Exercise Dates	2/22/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.09%, 3/01/2018 [Member]
Interest Rate	1.09%
Exercise Dates	3/01/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.16%, 3/22/2018 [Member]
Interest Rate	1.16%
Exercise Dates	3/22/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.17%, 3/29/2018 [Member]
Interest Rate	1.17%
Exercise Dates	3/29/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.19%, 4/05/2018 [Member]
Interest Rate	1.19%
Exercise Dates	4/05/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.23%, 4/19/2018 [Member]
Interest Rate	1.23%
Exercise Dates	4/19/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.32%, 5/10/2018 [Member]
Interest Rate	1.32%
Exercise Dates	5/10/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.43%, 5/31/2018 [Member]
Interest Rate	1.43%
Exercise Dates	5/31/2018
United States 3x Short Oil Fund [Member] \| Cash Equivalents [Member] \| United States Treasury Obligations [Member] \| U.S. Treasury Bills: 1.45%, 6/07/2018 [Member]
Interest Rate	1.45%
Exercise Dates	6/07/2018

Statement of Operations

Statement of Operations	12 Months Ended
Statement of Operations	Dec. 31, 2017USD ($)$ / sharesshares
Gain (loss) on trading of commodity futures contracts:
Realized gain (loss) on closed futures contracts	$ 114,047	[1]
Change in unrealized gain (loss) on open futures contracts	509,180	[1]
Interest income	21,712	[1],[2]
ETF transaction fees	2,000	[1]
Total income (loss)	646,939	[1]
Expenses
Management fees (Note 4)	29,558	[1]
Brokerage commissions	13,689	[1]
Total expenses	43,247	[1]
Net income (loss)	603,692	[1]
United States 3x Oil Fund [Member]
Gain (loss) on trading of commodity futures contracts:
Realized gain (loss) on closed futures contracts	1,290,712	[1]
Change in unrealized gain (loss) on open futures contracts	703,240	[1]
Interest income	13,740	[1],[2]
ETF transaction fees	1,000	[1]
Total income (loss)	2,008,692	[1]
Expenses
Management fees (Note 4)	17,178	[1]
Brokerage commissions	7,869	[1]
Total expenses	25,047	[1]
Net income (loss)	$ 1,983,645	[1]
Net income (loss) per share \| $ / shares	$ 19.83	[1]
Net income (loss) per weighted average share \| $ / shares	$ 19.83	[1]
Weighted average shares outstanding \| shares	100,040	[1]
United States 3x Short Oil Fund [Member]
Gain (loss) on trading of commodity futures contracts:
Realized gain (loss) on closed futures contracts	$ (1,176,665)	[1]
Change in unrealized gain (loss) on open futures contracts	(194,060)	[1]
Interest income	7,972	[1],[2]
ETF transaction fees	1,000	[1]
Total income (loss)	(1,361,753)	[1]
Expenses
Management fees (Note 4)	12,380	[1]
Brokerage commissions	5,820	[1]
Total expenses	18,200	[1]
Net income (loss)	$ (1,379,953)	[1]
Net income (loss) per share \| $ / shares	$ (13.79)	[1]
Net income (loss) per weighted average share \| $ / shares	$ (13.79)	[1]
Weighted average shares outstanding \| shares	100,040	[1]
REX S&P MLP Fund [Member]
Gain (loss) on trading of commodity futures contracts:
Realized gain (loss) on closed futures contracts	$ 0	[3]
Change in unrealized gain (loss) on open futures contracts	0	[3]
Interest income	0	[3]
ETF transaction fees	0	[3]
Total income (loss)	0	[3]
Expenses
Management fees (Note 4)	0	[3]
Brokerage commissions	0	[3]
Total expenses	0	[3]
Net income (loss)	$ 0	[3]
Net income (loss) per share \| $ / shares	$ 0	[3]
Net income (loss) per weighted average share \| $ / shares	$ 0	[3]
Weighted average shares outstanding \| shares	0	[3]
REX S&P MLP Inverse Fund [Member]
Gain (loss) on trading of commodity futures contracts:
Realized gain (loss) on closed futures contracts	$ 0	[4]
Change in unrealized gain (loss) on open futures contracts	0	[4]
Interest income	0	[4]
ETF transaction fees	0	[4]
Total income (loss)	0	[4]
Expenses
Management fees (Note 4)	0	[4]
Brokerage commissions	0	[4]
Total expenses	0	[4]
Net income (loss)	$ 0	[4]
Net income (loss) per share \| $ / shares	$ 0	[4]
Net income (loss) per weighted average share \| $ / shares	$ 0	[4]
Weighted average shares outstanding \| shares	0	[4]

[1]	Commencement of operations, July 20, 2017.
[2]	Interest income does not exceed paid in kind of 5%.
[3]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[4]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.

Statement of Operations (Parent

Statement of Operations (Parenthetical) - USD ($)	Dec. 31, 2017		Jun. 20, 2017	Apr. 15, 2016	Mar. 31, 2016
Sponsor Capital Account	$ 4,000
Paid in Kind [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.00%
United States 3x Short Oil Fund [Member]
Sponsor Capital Account	$ 1,000
United States 3x Short Oil Fund [Member] \| Paid in Kind [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.00%
United States 3x Oil Fund [Member]
Sponsor Capital Account	$ 1,000		$ 1,000
United States 3x Oil Fund [Member] \| Paid in Kind [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.00%
REX S&P MLP Inverse Fund [Member]
Sponsor Capital Account	$ 1,000	[1]		$ 1,000
REX S&P MLP Fund [Member]
Sponsor Capital Account	$ 1,000	[2]			$ 1,000

[1]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[2]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.

Statement of Changes in Capital

Statement of Changes in Capital - USD ($)		3 Months Ended	12 Months Ended
Statement of Changes in Capital - USD ($)		Dec. 31, 2017	Dec. 31, 2017
Balances	[1]		$ 0
Additions			5,004,000
Net income (loss)		$ (728,912)	603,692	[1]
Balances		$ 5,607,692	$ 5,607,692
Shares Outstanding	[1]		0
Additions			200,080
Redemptions			0
Shares Outstanding		200,080	200,080
Sponsor [Member]
Balances	[1]		$ 0
Additions			4,000
Net income (loss)			0
Balances		$ 4,000	$ 4,000
Shares Outstanding	[1]		0
Additions			80
Redemptions			0
Shares Outstanding		80	80
Shareholders [Member]
Balances	[1]		$ 0
Additions			5,000,000
Net income (loss)			603,692
Balances		$ 5,603,692	$ 5,603,692
Shares Outstanding	[1]		0
Additions			200,000
Redemptions			0
Shares Outstanding		200,000	200,000
United States 3x Oil Fund [Member]
Balances	[1]		$ 0
Additions			2,501,000
Net income (loss)		$ 1,481,563	1,983,645	[1]
Balances		$ 4,484,645	$ 4,484,645
Shares Outstanding	[1]		0
Additions			100,040
Redemptions			0
Shares Outstanding		100,040	100,040
Net Asset Value Per Share:
Net Asset Value Per Unit	[1]		$ 25
Net Asset Value Per Unit	[1]	$ 44.83	$ 44.83
United States 3x Oil Fund [Member] \| Sponsor [Member]
Balances	[1]		$ 0
Additions			1,000
Net income (loss)			0
Balances		$ 1,000	$ 1,000
Shares Outstanding	[1]		0
Additions			40
Redemptions			0
Shares Outstanding		40	40
United States 3x Oil Fund [Member] \| Shareholders [Member]
Balances	[1]		$ 0
Additions			2,500,000
Net income (loss)			1,983,645
Balances		$ 4,483,645	$ 4,483,645
Shares Outstanding	[1]		0
Additions			100,000
Redemptions			0
Shares Outstanding		100,000	100,000
United States 3x Short Oil Fund [Member]
Balances	[1]		$ 0
Additions			2,501,000
Net income (loss)	[1]		(1,379,953)
Balances		$ 1,121,047	$ 1,121,047
Shares Outstanding	[1]		0
Additions			100,040
Redemptions			0
Shares Outstanding		100,040	100,040
Net Asset Value Per Share:
Net Asset Value Per Unit	[1]		$ 25
Net Asset Value Per Unit	[1]	$ 11.21	$ 11.21
United States 3x Short Oil Fund [Member] \| Sponsor [Member]
Balances	[1]		$ 0
Additions			1,000
Net income (loss)			0
Balances		$ 1,000	$ 1,000
Shares Outstanding	[1]		0
Additions			40
Redemptions			0
Shares Outstanding		40	40
United States 3x Short Oil Fund [Member] \| Shareholders [Member]
Balances	[1]		$ 0
Additions			2,500,000
Net income (loss)			(1,379,953)
Balances		$ 1,120,047	$ 1,120,047
Shares Outstanding	[1]		0
Additions			100,000
Redemptions			0
Shares Outstanding		100,000	100,000
REX S&P MLP Fund [Member]
Balances	[2]		$ 0
Additions			1,000
Net income (loss)	[2]		0
Balances	[2]	$ 1,000	1,000
REX S&P MLP Fund [Member] \| Sponsor [Member]
Balances	[2]		0
Additions			1,000
Net income (loss)			0
Balances		1,000	1,000
REX S&P MLP Fund [Member] \| Shareholders [Member]
Balances	[2]		0
Additions			0
Net income (loss)			0
Balances		0	0
REX S&P MLP Inverse Fund [Member]
Balances	[3]		0
Additions			1,000
Net income (loss)	[3]		0
Balances	[3]	1,000	1,000
REX S&P MLP Inverse Fund [Member] \| Sponsor [Member]
Balances	[3]		0
Additions			1,000
Net income (loss)			0
Balances		1,000	1,000
REX S&P MLP Inverse Fund [Member] \| Shareholders [Member]
Balances	[3]		0
Additions			0
Net income (loss)			0
Balances		$ 0	$ 0

[1]	Commencement of operations, July 20, 2017.
[2]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[3]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.

Statement of Changes in Capita9

Statement of Changes in Capital (Parenthetical) - USD ($)	Dec. 31, 2017		Apr. 15, 2016	Mar. 31, 2016
Sponsor Capital Account	$ 4,000
REX S&P MLP Fund [Member]
Sponsor Capital Account	1,000	[1]		$ 1,000
REX S&P MLP Inverse Fund [Member]
Sponsor Capital Account	$ 1,000	[2]	$ 1,000

[1]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[2]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.

Statement of Cash Flows

Statement of Cash Flows	12 Months Ended
Statement of Cash Flows	Dec. 31, 2017USD ($)
Cash Flows from Operating Activities:
Net income (loss)	$ 603,692	[1]
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
(Increase) decrease in commodity futures trading account - cash and cash equivalents	(3,050,774)	[1]
Unrealized (gain) loss on open futures contracts	(509,180)	[1]
(Increase) decrease in interest receivable	(3,284)	[1]
(Increase) decrease in other assets	(1,696)	[1]
Increase (decrease) in management fees payable	4,249	[1]
Net cash provided by (used in) operating activities	(2,956,993)	[1]
Cash Flows from Financing Activities:
Addition of shares	5,004,000	[1]
Redemption of shares	0	[1]
Net cash provided by (used in) financing activities	5,004,000	[1]
Net Increase (Decrease) in Cash and Cash Equivalents	2,047,007	[1]
Cash and Cash Equivalents, beginning of period	0	[1]
Cash and Cash Equivalents, end of period	2,047,007	[1]
United States 3x Oil Fund [Member]
Cash Flows from Operating Activities:
Net income (loss)	1,983,645	[1]
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
(Increase) decrease in commodity futures trading account - cash and cash equivalents	(2,579,835)	[1]
Unrealized (gain) loss on open futures contracts	(703,240)	[1]
(Increase) decrease in interest receivable	(2,708)	[1]
(Increase) decrease in other assets	(848)	[1]
Increase (decrease) in management fees payable	2,850	[1]
Net cash provided by (used in) operating activities	(1,300,136)	[1]
Cash Flows from Financing Activities:
Addition of shares	2,501,000	[1]
Redemption of shares	0	[1]
Net cash provided by (used in) financing activities	2,501,000	[1]
Net Increase (Decrease) in Cash and Cash Equivalents	1,200,864	[1]
Cash and Cash Equivalents, beginning of period	0	[1]
Cash and Cash Equivalents, end of period	1,200,864	[1]
United States 3x Short Oil Fund [Member]
Cash Flows from Operating Activities:
Net income (loss)	(1,379,953)	[1]
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
(Increase) decrease in commodity futures trading account - cash and cash equivalents	(470,939)	[1]
Unrealized (gain) loss on open futures contracts	194,060	[1]
(Increase) decrease in interest receivable	(576)	[1]
(Increase) decrease in other assets	(848)	[1]
Increase (decrease) in management fees payable	1,399	[1]
Net cash provided by (used in) operating activities	(1,656,857)	[1]
Cash Flows from Financing Activities:
Addition of shares	2,501,000	[1]
Redemption of shares	0	[1]
Net cash provided by (used in) financing activities	2,501,000	[1]
Net Increase (Decrease) in Cash and Cash Equivalents	844,143	[1]
Cash and Cash Equivalents, beginning of period	0	[1]
Cash and Cash Equivalents, end of period	844,143	[1]
REX S&P MLP Fund [Member]
Cash Flows from Operating Activities:
Net income (loss)	0	[2]
Cash Flows from Financing Activities:
Addition of shares	1,000	[2]
Redemption of shares	0	[2]
Net cash provided by (used in) financing activities	1,000	[2]
Net Increase (Decrease) in Cash and Cash Equivalents	1,000	[2]
Cash and Cash Equivalents, beginning of period	0	[2]
Cash and Cash Equivalents, end of period	1,000	[2]
REX S&P MLP Inverse Fund [Member]
Cash Flows from Operating Activities:
Net income (loss)	0	[3]
Cash Flows from Financing Activities:
Addition of shares	1,000	[3]
Redemption of shares	0	[3]
Net cash provided by (used in) financing activities	1,000	[3]
Net Increase (Decrease) in Cash and Cash Equivalents	1,000	[3]
Cash and Cash Equivalents, beginning of period	0	[3]
Cash and Cash Equivalents, end of period	$ 1,000	[3]

[1]	Commencement of operations, July 20, 2017.
[2]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[3]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.

Statement of Cash Flows (Parent

Statement of Cash Flows (Parenthetical) - USD ($)	Dec. 31, 2017		Apr. 15, 2016	Mar. 31, 2016
Sponsor Capital Account	$ 4,000
REX S&P MLP Fund [Member]
Sponsor Capital Account	1,000	[1]		$ 1,000
REX S&P MLP Inverse Fund [Member]
Sponsor Capital Account	$ 1,000	[2]	$ 1,000

[1]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[2]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.

ORGANIZATION AND BUSINESS

ORGANIZATION AND BUSINESS	12 Months Ended
ORGANIZATION AND BUSINESS	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	NOTE 1 ORGANIZATION AND BUSINESS The USCF Funds Trust (the “Trust”) is a Delaware statutory trust formed on March 2, 2016. The Trust is a series trust formed pursuant to the Delaware Statutory Trust Act. The Trust contains four series: United States 3x Oil Fund (“USOU”), United States 3x Short Oil Fund (“USOD”), REX S&P MLP Fund (“RMLP”), and REX S&P MLP Inverse Fund (“MLPD”). RMLP and MLPD (collectively, the “REX Funds”) are commodity pools that are expected to issue shares that would be purchased and sold on an exchange, but are currently in registration and have not commenced operations. USOU and USOD are commodity pools that continuously issue common shares of beneficial interest that may be purchased and sold on NYSE Arca Equities, Inc. stock exchange (“NYSE Arca”). USOU and USOD each referred to as the “Fund” and collectively referred to herein as the “Funds” or the “Trust Series.” The Trust and the Funds operate pursuant to the Trust’s Amended and Restated Declaration of Trust and Trust Agreement (the “Trust Agreement”), dated as of June 23, 2017. The sole trustee of the Trust is Wilmington Trust Company, National Association, a national banking association, with its principal place of business in the State of Delaware (the “Trustee”). The Trust and the Funds are managed and operated by the United States Commodity Funds, LLC (“USCF” or the “Sponsor”). USCF is a limited liability company formed in Delaware on May 10, 2005, that is registered as a commodity pool operator (“CPO”) with the Commodity Futures Trading Commission (“CFTC”) and is a member of the National Futures Association (“NFA”). The Sponsor has the power and authority to establish and designate one or more series, or funds, and to issue shares thereof, from time to time as it deems necessary or desirable. The Sponsor also has the exclusive power to fix and determine the relative rights and preferences as between the shares of any series as to right of redemption, special and relative rights as to dividends and other distributions and on liquidation, conversion rights, and conditions under which the series shall have separate voting rights or no voting rights. The term for which the Trust will exist commenced on the date of the filing of the Certificate of Trust, and the Trust and any Fund will exist in perpetuity, unless earlier terminated in accordance with the provisions of the Trust Agreement. Each Fund is separate from all other Funds created as series of the Trust in respect of the assets and liabilities allocated to that Fund and each Fund represents a separate investment portfolio of the Trust. Separate and distinct records must be maintained for each Fund and the assets associated with a Fund shall be held in such separate and distinct records (directly or indirectly, including a nominee or otherwise) and accounted for in such separate and distinct records separately from the assets of any other Fund. The Trustee is not affiliated with the Sponsor. The Trustee will accept legal service of process on the Trust in the State of Delaware and will make certain filings under the Delaware Statutory Trust Act. The Trustee’s duties and liabilities with respect to the offering of Shares and the management of the Trust are limited to its express obligations under the Trust Agreement and the Trustee does not owe any other duties to the Trust, the Sponsor or the shareholders of any Fund. The Sponsor, 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”), the United States Gasoline Fund, LP (“UGA”) and the United States Diesel-Heating Oil Fund, LP (“UHN”), 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, “UGA” on February 26, 2008 and “UHN” on April 9, 2008, respectively. As a result of the acquisition of the AMEX by NYSE Euronext, each of USO’s, UNG’s, USL’s, UGA’s and UHN’s shares commenced trading on the NYSE on November 25, 2008. USCF is also the general partner of the United States Short Oil Fund, LP (“DNO”), 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 under the ticker symbols “DNO” on September 24, 2009, “UNL” on November 18, 2009 and “BNO” on June 2, 2010, respectively. USCF is also the sponsor of the United States Commodity Index Fund (“USCI”), the United States Copper Index Fund (“CPER”), the United States Agriculture Index Fund (“USAG”), and the USCF Canadian Crude Oil Index Fund (“UCCO”), each a series of the United States Commodity Index Funds Trust. USCI, CPER and USAG listed their shares on the NYSE under the ticker symbol “USCI” on August 10, 2010, “CPER” on November 15, 2011 and “USAG” on April 13, 2012, respectively. UCCO is currently in registration and has not commenced operations. All funds listed previously, other than UCCO, RMLP and MLPD, are referred to collectively herein as the “Related Public Funds” and are also commodity pools. Effective as of July 20, 2017, each of USOU and USOD issued shares to certain authorized purchasers (“Authorized Participants”) by offering baskets consisting of 50,000 Authorized Participants pay USOU and USOD, as applicable, a transaction fee equal to 0.04 50,000

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Dec. 31, 2017
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The financial statements have been prepared in conformity with U.S. Generally Accepted Accounting Principles (“GAAP”), as detailed in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification. Each series of the Trust is an investment company and follows the accounting and reporting guidance in FASB Topic 946. 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. The Funds earn income on funds held at the custodian or futures commission merchant (“FCM”) at prevailing market rates earned on such investments. Brokerage commissions on all open commodity futures contracts are accrued on a full-turn basis. The Funds are not subject to federal income taxes; each investor 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, each Fund 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. Each Fund files an income tax return in the U.S. federal jurisdiction, and may file income tax returns in various U.S. states. None of the Trust Series is subject to income tax return examinations by major taxing authorities for years before 2017 (commencement of operations). 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 each Trust Series recording a tax liability that reduces net assets. However, each Trust Series’ 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. Each Trust Series 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 period from July 20, 2017 (commencement of operations) through December 31, 2017 for any Trust Series. “Authorized Participants,” institutional firms that can purchase or redeem shares in blocks of 50,000 The Funds receive or pay 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 the Funds’ statements of financial condition as receivable for shares sold, and amounts payable to Authorized Participants upon redemption are reflected as payable for shares redeemed. For USOU or USOD, Authorized Participants pay a transaction fee equal to 0.04 0.02 The Trust is a treated as partnership for tax purposes. Profit or loss shall be allocated among the shareholders of each Fund in proportion to the number of shares each investor holds as of the close of each month. USCF may revise, alter or otherwise modify this method of allocation as described in the Trust Agreement. USOU and USOD Funds’ per share NAV is calculated on each NYSE 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. The Funds use the closing price for the contracts on the relevant exchange on that day to determine the value of contracts held on such exchange. The NAV for a normal trading day is released after 4:00 p.m. Eastern time (“E.T.”). For futures contracts and options traded on exchanges, USOU and USOD’s administrator (the “Administrator”) use the closing or settlement price published by the applicable exchange or, in the case of a market disruption, the last traded price before settlement. In the case of the Benchmark Oil Futures Contract, the NYMEX closing price (determined at the earlier of the close of the NYMEX or 2:30 p.m. E.T.) for the contracts traded on the NYMEX is used. Other investments’ values for purposes of determining the NAV for each of USOU and USOD, including Treasuries, cash equivalents (other than money market funds), cleared and non-cleared swaps, forwards, options and swaps are calculated by the Administrator using market quotations and market data, if available, or other information customarily used to determine the fair value of such investments as of the earlier of the close of the NYSE or 4:00 p.m. E.T. Money market funds are valued at their end of day NAV. RMLP and MLPD are currently in registration and have not commenced operations and the RMLP and MLPD Funds’ per share NAV will not be calculated until such time as operations commence. 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. As of December 31, 2017, USCF held 40 Offering costs incurred in connection with the registration of additional shares of any Trust Series after the initial registration of shares of such Trust Series are borne by each respective Trust Series. 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 include money market funds, overnight deposits and obligations of the United States with an original maturity of less than six months. Certain amounts in the accompanying financial statements may have been reclassified to conform to the current presentation. 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.

TRUST SERIES

TRUST SERIES	12 Months Ended
TRUST SERIES	Dec. 31, 2017
Trust Series [Abstract]
Capital Requirements on Trust Assets [Text Block]	NOTE 3 TRUST SERIES Pursuant to the Trust Agreement, four series have been designated as series of the Trust. Following the designation of the Funds as a series of the Trust, an initial capital contribution of $ 1,000 4,000 1,000 1,000 1,000 1,000 40 40 On July 19, 2017, the Trust received a notice of effectiveness from the U.S. Securities and Exchange Commission (the “SEC”) for its registration of 30,000,000 30,000,000 25.00 100,000 100,000 2,500,000 2,500,000 Investment Objective of the Funds USOU USOU’s shares trade on the NYSE. The investment objective of USOU is for the daily changes in percentage terms of its shares’ per share net asset value (“NAV”) to reflect three times (3x) the daily change in percentage terms of the price of a specified short-term futures contract on light, sweet crude oil (the “Benchmark Oil Futures Contract”) less USOU’s expenses. To achieve this objective, USCF endeavors to have the notional value of USOU’s aggregate exposure to the Benchmark Oil Futures Contract at the close of each trading day approximately equal to 300% of USOU’s NAV. USOU seeks a return that is 300% of the return of the Benchmark Oil Futures Contract for a single day and does not seek to achieve its stated investment objective over a period of time greater than one day. The pursuit of daily leveraged investment goals means that the return of USOU for a period longer than a full trading day may have no resemblance to 300% of the return of the Benchmark Oil Futures Contract for a period of longer than a full trading day because the aggregate return of USOU is the product of the series of each trading day’s daily returns. USOU’s shares began trading on July 20, 2017. As of December 30, 2017, USOU held 223 223 USOD USOD’s shares trade on the NYSE. The investment objective of USOD is for the daily changes in percentage terms of its shares’ per share net asset value (“NAV”) to reflect three times the inverse (-3x) of the daily change in percentage terms of the price of a specified short-term futures contract on light, sweet crude oil (the “Benchmark Oil Futures Contract”) less USOD’s expenses. To achieve this objective, USCF endeavor to have the notional value of USOD’s aggregate short exposure to the Benchmark Oil Futures Contract at the close of each trading day approximately equal to 300% of USOD’s NAV. USOD seeks a return that is -300% of the return of the Benchmark Oil Futures Contract for a single day and does not seek to achieve its stated investment objective over a period of time greater than one day. The pursuit of daily inverse leveraged investment goals means that the return of USOD for a period longer than a full trading day may have no resemblance to -300% of the return of the Benchmark Oil Futures Contract for a period of longer than a full trading day because the aggregate return of USOD is the product of the series of each trading day’s daily returns. USOD’s shares began trading on July 20, 2017. As of December 31, 2017, USOD held 55 55 RMLP and MLPD are commodity pools that are expected to issue shares that would be purchased and sold on an exchange, but are currently in registration and have not commenced operations. Trading Advisor and Trustee The Trustee accepts service of legal process on the Trust in the State of Delaware and makes certain filings under the Delaware Statutory Trust Act. The Trustee does not owe any other duties to the Trust, USCF or the shareholders.

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, 2017
Fees Paid By Fund And Related Party Transactions [Abstract]
Fees Paid and Related Party Transactions Disclosure [Text Block]	NOTE 4 FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS USCF Management Fee Under the Trust Agreement, USCF is responsible for investing the assets of USOU and USOD (together the “Trust Series”) in accordance with the objectives and policies of USOU or USOD, as applicable. In addition, USCF has arranged for one or more third parties to provide administrative, custody, accounting, transfer agency and other necessary services to the Trust Series. For these services, each Fund is obligated to pay USCF a fee, which is paid monthly, equal to: from July 20, 2017 to November 14, 2017, 1.35 1.65 0.95 0.75 0.75 Trustee Fee The Trustee is the Delaware trustee of the Trust. In connection with the Trustee’s services to the Trust, USCF is responsible for paying the Trustee’s annual fee in the amount of $ 3,000 Ongoing Registration Fees and Other Offering Expenses The Trust Series pay (a) the applicable Management Fee payable to USCF, discussed above, (b) brokerage fees, futures commission merchant fees and other fees and commissions incurred in connection with the trading activities of the Fund, (c) any costs and expenses related to registration of additional shares of the Fund, and (d) all other expenses allocated to the Fund by USCF in consultation with REX MLPshares, LLC, as may be disclosed from time to time. During the period ended December 31, 2017, the Trust Series did not incur any registration fees or other offering expenses. Independent Directors’ and Officers’ Expenses The Sponsor is responsible for paying its portion of the directors’ and officers’ liability insurance for the Funds and the fees and expenses of the independent directors who also serve as audit committee members of the Funds. The directors also serve as the directors, and for the independent directors as audit committee members, of the Related Public Funds and the other Funds that are series of the Trust. The Sponsor shares the fees and expenses on a pro rata basis with each Related Public Fund, as described above, based on the relative asset value of the Funds to the total Related Public Fund’s asset value computed on a daily basis. These fees and expenses for the period ended December 31, 2017, are estimated to be a total of $ 569,303 0 0 Licensing Fees REX MLPshares, LLC licenses certain intellectual property rights to USCF and certain of the Funds. Investor Tax Reporting Cost The fees and expenses associated with the Funds’ audit expenses and tax accounting and reporting requirements are paid by the Sponsor. These costs are estimated to be $ 75,000 Other Expenses and Fees In addition to the fees described above, each Active Fund pays all brokerage fees and other expenses in connection with the operation of such Active Fund, excluding costs and expenses paid by USCF.

CONTRACTS AND AGREEMENTS

CONTRACTS AND AGREEMENTS	12 Months Ended
CONTRACTS AND AGREEMENTS	Dec. 31, 2017
Contractors [Abstract]
Long-term Contracts or Programs Disclosure [Text Block]	NOTE 5 - CONTRACTS AND AGREEMENTS Marketing Agent Agreement The Sponsor and the Trust, each on its own behalf and on behalf of the Funds, are party to a marketing agent agreement, dated as of July 14, 2017, as amended from time to time, with the Marketing Agent, whereby the Marketing Agent provides certain marketing services for the Funds as outlined in the agreement. The fee of the Marketing Agent, which is borne by the Sponsor, is equal to 0.06 3 0.04 3 10 The above fee does not include website construction and development, which are also borne by the Sponsor. Brown Brothers Harriman & Co. Agreements The Sponsor and the Trust, on its own behalf and on behalf of the Funds, are also party to a custodian agreement, dated July 7, 2017, as amended from time to time, with Brown Brothers Harriman & Co. (“BBH&Co.”), whereby BBH&Co. holds investments on behalf of the Trust Series. The Sponsor pays the fees of the custodian, which are determined by the parties from time to time. In addition, the Sponsor and the Trust, on its own behalf and on behalf of the Funds, are party to an administrative agency agreement, dated July 7, 2017, as amended from time to time, with BBH&Co., whereby BBH&Co. acts as the administrative agent, transfer agent and registrar for the Funds. The Sponsor also pays the fees of BBH&Co. for its services under such agreement and such fees are determined by the parties from time to time. Currently, the Sponsor pays BBH&Co. for its services, in the foregoing capacities, a minimum amount of $ 75,000 20,000 0.06 500 0.0465 500 1 0.035 1 The annual minimum amount will not apply if the asset-based charge for all accounts in the aggregate exceeds $75,000. 7 15 Brokerage and Futures Commission Merchant Agreements On June 23, 2017, the Trust entered into a futures commission merchant agreement with RBC Capital Markets, LLC (“RBC Capital” or “RBC”) to serve as the Trust Series’ FCM. The agreement with RBC requires it to provide services to the Trust Series in connection with the purchase and sale of Oil Futures Contracts and Other Oil-Related Investments that may be purchased and sold by or through RBC Capital for the Trust Series’ account. In accordance with the agreement, RBC Capital charges the Trust Series commissions of approximately $ 7 8 No information is provided below for RMLP and MLPD, since such Funds are currently in registration and have not commenced operations. For the period from Total commissions accrued to brokers $ 7,869 Total commissions as an annualized percentage of average total net assets 0.55 % Commissions accrued as a result of rebalancing $ 7,371 Percentage of commissions accrued as a result of rebalancing 93.67 % Commissions accrued as a result of creation and redemption activity $ 498 Percentage of commissions accrued as a result of creation and redemption activity 6.33 % Commencement of operations, July 20, 2017. USOD For the period from Total commissions accrued to brokers $ 5,820 Total commissions as an annualized percentage of average total net assets 0.71 % Commissions accrued as a result of rebalancing $ 5,313 Percentage of commissions accrued as a result of rebalancing 91.29 % Commissions accrued as a result of creation and redemption activity $ 507 Percentage of commissions accrued as a result of creation and redemption activity 8.71 % Commencement of operations, July 20, 2017. Other Fund Service Providers The Sponsor has entered into an agreement with REX MLP Shares, LLC (“REX”), a single member limited liability company that was formed in the state of Delaware on December 3, 2015. REX is a wholly-owned subsidiary of REX Shares, LLC, a Delaware limited liability company (“REX Shares”). Pursuant to the agreement between the Sponsor and REX, REX will assist the Sponsor with the development and launch of each respective Fund and provide certain ongoing services. REX also licenses certain intellectual property rights to the Sponsor and certain of the Funds. REX does not make investment decisions for the Sponsor, the Trust or the Funds and is not involved in the day-to-day operations or maintenance of the Funds.

FINANCIAL INSTRUMENTS, OFF-BALA

FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2017
Risks and Uncertainties [Abstract]
Financial Instruments Disclosure [Text Block]	NOTE 6 FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES The Trust Series may engage in the trading of futures contracts, options on futures contracts and swaps (collectively, “derivatives”). The Trust Series are 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. The Trust Series may enter into futures contracts, options on futures contracts and 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. 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 an FCM to segregate all customer transactions and assets from the FCM’s proprietary activities. 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 each of the Trust Series 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. All of the futures contracts held by USOU and USOD through December 31, 2017 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 any of the Funds 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. The Funds have 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, the Funds bear the risk of financial failure by the clearing broker. The Trust Series’ cash and other property, such as Treasuries, deposited with an FCM are considered commingled with all other customer funds, subject to the 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 each of the Funds’ assets posted with that FCM; however, the majority of the Funds’ assets is held in cash and/or cash equivalents with the Funds’ custodian and would not be impacted by the insolvency of an FCM. The failure or insolvency of the Funds’ custodian, however, could result in a substantial loss of the Funds’ assets. The Sponsor invests a portion of the Trust Series’ cash in money market funds that seek to maintain a stable per share NAV. The Trust Series are exposed to any risk of loss associated with an investment in such money market funds. As of December 31, 2017, USOU and USOD held investments in money market funds in the amounts of $ 1,000,000 540,000 2,780,699 775,082 For derivatives, risks arise from changes in the market value of the contracts. Theoretically, the Trust Series are exposed to market risk equal to the value of futures contracts purchased and unlimited liability on such contracts sold short. As both a buyer and a seller of options, the Trust Series pay or receive a premium at the outset and then bear the risk of unfavorable changes in the price of the contract underlying the option. The Trust Series’ 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, the Trust Series have a policy of requiring review of the credit standing of each broker or counterparty with which it conducts business. The financial instruments held by the Trust Series 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. No information is provided for RMLP and MLPD, since such Funds are currently in registration and have not commenced operations.

FINANCIAL HIGHLIGHTS

FINANCIAL HIGHLIGHTS	12 Months Ended
FINANCIAL HIGHLIGHTS	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Additional Financial Information Disclosure [Text Block]	NOTE 7 FINANCIAL HIGHLIGHTS No information is provided below for RMLP and MLPD, since such Funds are currently in registration and have not commenced operations. USOU For the period from Per Share Operating Performance: Net asset value, beginning of period $ 25.00 Total income (loss) 20.08 Net expenses (0.25) Net increase (decrease) in net asset value 19.83 Net asset value, end of period $ 44.83 Total Return 79.32 % Ratios to Average Net Assets Total income (loss) 63.41 % Management fees 1.21 % Total expenses excluding management fees 0.55 % Expenses waived % Net expenses excluding management fees 0.55 % Net income (loss) 62.62 % * Commencement of operations, July 20, 2017. Annualized. USOD For the period from Per Share Operating Performance: Net asset value, beginning of period $ 25.00 Total income (loss) (13.61) Net expenses (0.18) Net increase (decrease) in net asset value (13.79) Net asset value, end of period $ 11.21 Total Return (55.16) % Ratios to Average Net Assets Total income (loss) (74.49) % Management fees 1.51 % Total expenses excluding management fees 0.71 % Expenses waived % Net expenses excluding management fees** 0.71 % Net income (loss) (75.48) % * Commencement of operations, July 20, 2017. **Annualized. 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 each Trust Series.

QUARTERLY FINANCIAL DATA

QUARTERLY FINANCIAL DATA	12 Months Ended
QUARTERLY FINANCIAL DATA	Dec. 31, 2017
Quarterly Financial Data [Abstract]
Quarterly Financial Information [Text Block]	NOTE 8 QUARTERLY FINANCIAL DATA (Unaudited) USOU Third Quarter Fourth Quarter Total Income (Loss) $ 512,497 $ 1,496,195 Total Expenses 10,415 14,632 Net Income (Loss) $ 502,082 $ 1,481,563 Net Income (Loss) per Share $ 5.02 $ 14.81 USOD Third Quarter Fourth Quarter Total Income (Loss) $ (640,360) $ (721,393) Total Expenses 10,681 7,519 Net Income (Loss) $ (651,041) $ (728,912) Net Income (Loss) per Share $ (6.51) $ (7.28)

FAIR VALUE OF FINANCIAL INSTRUM

FAIR VALUE OF FINANCIAL INSTRUMENTS	12 Months Ended
FAIR VALUE OF FINANCIAL INSTRUMENTS	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Of Financial Instruments [Text Block]	NOTE 9 FAIR VALUE OF FINANCIAL INSTRUMENTS The Trust and the Trust Series value their 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 the Trust and the Trust Series (observable inputs) and (2) the Trust’s and the Trust Series’ 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 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. No information is provided in this section for RMLP and MLPD, since such Funds are currently in registration and have not commenced operations. At December 31, 2017 Total Level I Level II Level III Short-Term Investments $ 1,647,421 $ 1,647,421 $ $ Exchange-Traded Futures Contracts United States Contracts 703,240 703,240 During the period from commencement of operations on July 20, 2017 to December 31, 2017, there were no transfers between Level I and Level II. At December 31, 2017 Total Level I Level II Level III Short-Term Investments $ 1,088,158 $ 1,088,158 $ $ Exchange-Traded Futures Contracts United States Contracts (194,060) (194,060) During the period from commencement of operations on July 20, 2017 to December 31, 2017, there were no transfers between Level I and Level II. The Trust and the Funds have 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. Derivatives not Accounted for Statements of Fair Value Futures - Commodity Contracts Assets $ 703,240 Fair Value of Derivative Instruments Held by USOD Derivatives not Accounted for Statements of Fair Value Futures - Commodity Contracts Assets $ (194,060) For the period from commencement of Derivatives Location of Realized Change in Futures Commodity Contracts Realized gain (loss) on closed contracts $ 1,290,712 Change in unrealized gain (loss) on open contracts $ 703,240 The Effect of Derivative Instruments on the Statements of Operations of USOD For the period from commencement of Derivatives Location of Realized Change in Futures Commodity Contracts Realized gain (loss) on closed contracts $ (1,176,665) Change in unrealized gain (loss) on open contracts $ (194,060)

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS	12 Months Ended
RECENT ACCOUNTING PRONOUNCEMENTS	Dec. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	NOTE 10 RECENT ACCOUNTING PRONOUNCEMENTS In August 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2015-14, Revenue from Contracts with Customers, modifying ASU 2014-09. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2015-14 is effective for fiscal years beginning on or after December 15, 2016, and interim periods within those annual periods. Early application is permitted. At this time, management does not believe there will be any impact to the Trust Series’ financial statements.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
SUBSEQUENT EVENTS	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events [Text Block]	NOTE 11 SUBSEQUENT EVENTS The Trust and each Trust Series have performed and evaluated the need for disclosure and/or adjustments resulting from 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 ACCOUN23

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies [Policy Text Block]	Basis of Presentation The financial statements have been prepared in conformity with U.S. Generally Accepted Accounting Principles (“GAAP”), as detailed in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification. Each series of the Trust is an investment company and follows the accounting and reporting guidance in FASB Topic 946.
Revenue Recognition, Policy [Policy Text Block]	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. The Funds earn income on funds held at the custodian or futures commission merchant (“FCM”) at prevailing market rates earned on such investments.
Commissions, Policy [Policy Text Block]	Brokerage Commissions Brokerage commissions on all open commodity futures contracts are accrued on a full-turn basis.
Income Tax, Policy [Policy Text Block]	Income Taxes The Funds are not subject to federal income taxes; each investor 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, each Fund 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. Each Fund files an income tax return in the U.S. federal jurisdiction, and may file income tax returns in various U.S. states. None of the Trust Series is subject to income tax return examinations by major taxing authorities for years before 2017 (commencement of operations). 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 each Trust Series recording a tax liability that reduces net assets. However, each Trust Series’ 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. Each Trust Series 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 period from July 20, 2017 (commencement of operations) through December 31, 2017 for any Trust Series.
Shares Subject to Mandatory Redemption, Changes in Redemption Value, Policy [Policy Text Block]	Creations and Redemptions “Authorized Participants,” institutional firms that can purchase or redeem shares in blocks of 50,000 The Funds receive or pay 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 the Funds’ statements of financial condition as receivable for shares sold, and amounts payable to Authorized Participants upon redemption are reflected as payable for shares redeemed. For USOU or USOD, Authorized Participants pay a transaction fee equal to 0.04 0.02
Trust Capital And Allocation Of Income And Losses [Policy Text Block]	Trust Capital and Allocation of Income and Losses The Trust is a treated as partnership for tax purposes. Profit or loss shall be allocated among the shareholders of each Fund in proportion to the number of shares each investor holds as of the close of each month. USCF may revise, alter or otherwise modify this method of allocation as described in the Trust Agreement.
Net Asset Value [Policy Text Block]	Calculation of Per Share NAV USOU and USOD Funds’ per share NAV is calculated on each NYSE 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. The Funds use the closing price for the contracts on the relevant exchange on that day to determine the value of contracts held on such exchange. The NAV for a normal trading day is released after 4:00 p.m. Eastern time (“E.T.”). For futures contracts and options traded on exchanges, USOU and USOD’s administrator (the “Administrator”) use the closing or settlement price published by the applicable exchange or, in the case of a market disruption, the last traded price before settlement. In the case of the Benchmark Oil Futures Contract, the NYMEX closing price (determined at the earlier of the close of the NYMEX or 2:30 p.m. E.T.) for the contracts traded on the NYMEX is used. Other investments’ values for purposes of determining the NAV for each of USOU and USOD, including Treasuries, cash equivalents (other than money market funds), cleared and non-cleared swaps, forwards, options and swaps are calculated by the Administrator using market quotations and market data, if available, or other information customarily used to determine the fair value of such investments as of the earlier of the close of the NYSE or 4:00 p.m. E.T. Money market funds are valued at their end of day NAV. RMLP and MLPD are currently in registration and have not commenced operations and the RMLP and MLPD Funds’ per share NAV will not be calculated until such time as operations commence.
Earnings Per Share, Policy [Policy Text Block]	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. As of December 31, 2017, USCF held 40
Other Operating Income Expense [Policy Text Block]	Offering Costs Offering costs incurred in connection with the registration of additional shares of any Trust Series after the initial registration of shares of such Trust Series are borne by each respective Trust Series. 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 and Cash Equivalents, Policy [Policy Text Block]	Cash Equivalents Cash equivalents include money market funds, overnight deposits and obligations of the United States with an original maturity of less than six months.
Reclassification, Policy [Policy Text Block]	Reclassifications Certain amounts in the accompanying financial statements may have been reclassified to conform to the current presentation.
Use of Estimates, Policy [Policy Text Block]	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, 2017
Contractors [Abstract]
Brokerage Commissions [Table Text Block]	For the period from Total commissions accrued to brokers $ 7,869 Total commissions as an annualized percentage of average total net assets 0.55 % Commissions accrued as a result of rebalancing $ 7,371 Percentage of commissions accrued as a result of rebalancing 93.67 % Commissions accrued as a result of creation and redemption activity $ 498 Percentage of commissions accrued as a result of creation and redemption activity 6.33 % Commencement of operations, July 20, 2017. USOD For the period from Total commissions accrued to brokers $ 5,820 Total commissions as an annualized percentage of average total net assets 0.71 % Commissions accrued as a result of rebalancing $ 5,313 Percentage of commissions accrued as a result of rebalancing 91.29 % Commissions accrued as a result of creation and redemption activity $ 507 Percentage of commissions accrued as a result of creation and redemption activity 8.71 % Commencement of operations, July 20, 2017.

FINANCIAL HIGHLIGHTS (Tables)

FINANCIAL HIGHLIGHTS (Tables)	12 Months Ended
FINANCIAL HIGHLIGHTS (Tables)	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Per Unit Performance Data And Other Supplemental Financial Data [Table Text Block]	No information is provided below for RMLP and MLPD, since such Funds are currently in registration and have not commenced operations. USOU For the period from Per Share Operating Performance: Net asset value, beginning of period $ 25.00 Total income (loss) 20.08 Net expenses (0.25) Net increase (decrease) in net asset value 19.83 Net asset value, end of period $ 44.83 Total Return 79.32 % Ratios to Average Net Assets Total income (loss) 63.41 % Management fees 1.21 % Total expenses excluding management fees 0.55 % Expenses waived % Net expenses excluding management fees 0.55 % Net income (loss) 62.62 % * Commencement of operations, July 20, 2017. Annualized. USOD For the period from Per Share Operating Performance: Net asset value, beginning of period $ 25.00 Total income (loss) (13.61) Net expenses (0.18) Net increase (decrease) in net asset value (13.79) Net asset value, end of period $ 11.21 Total Return (55.16) % Ratios to Average Net Assets Total income (loss) (74.49) % Management fees 1.51 % Total expenses excluding management fees 0.71 % Expenses waived % Net expenses excluding management fees** 0.71 % Net income (loss) (75.48) % * Commencement of operations, July 20, 2017. **Annualized.

QUARTERLY FINANCIAL DATA (Table

QUARTERLY FINANCIAL DATA (Tables)	12 Months Ended
QUARTERLY FINANCIAL DATA (Tables)	Dec. 31, 2017
Quarterly Financial Data [Abstract]
Quarterly Financial Information [Table Text Block]	The following summarized (unaudited) quarterly financial information presents the results of operations and other data for the three-month periods ended September 30 and December 31, 2017. USOU Third Quarter Fourth Quarter Total Income (Loss) $ 512,497 $ 1,496,195 Total Expenses 10,415 14,632 Net Income (Loss) $ 502,082 $ 1,481,563 Net Income (Loss) per Share $ 5.02 $ 14.81 USOD Third Quarter Fourth Quarter Total Income (Loss) $ (640,360) $ (721,393) Total Expenses 10,681 7,519 Net Income (Loss) $ (651,041) $ (728,912) Net Income (Loss) per Share $ (6.51) $ (7.28)

FAIR VALUE OF FINANCIAL INSTR27

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Valuation of Usou's and Usod's Securities Using Fair Value Hierarchy [Table Text Block]	The following table summarizes the valuation of USOU’s securities at December 31, 2017 using the fair value hierarchy: At December 31, 2017 Total Level I Level II Level III Short-Term Investments $ 1,647,421 $ 1,647,421 $ $ Exchange-Traded Futures Contracts United States Contracts 703,240 703,240 The following table summarizes the valuation of USOD’s securities at December 31, 2017 using the fair value hierarchy: At December 31, 2017 Total Level I Level II Level III Short-Term Investments $ 1,088,158 $ 1,088,158 $ $ Exchange-Traded Futures Contracts United States Contracts (194,060) (194,060)
Fair Value of Derivative Instruments Held by Usou and Usod [Table Text Block]	Fair Value of Derivative Instruments Held by USOU Derivatives not Accounted for Statements of Fair Value Futures - Commodity Contracts Assets $ 703,240 Fair Value of Derivative Instruments Held by USOD Derivatives not Accounted for Statements of Fair Value Futures - Commodity Contracts Assets $ (194,060)
Effect of Derivative Instruments on the Condensed Statements of Operations of Usou and Usod [Table Text Block]	For the period from commencement of Derivatives Location of Realized Change in Futures Commodity Contracts Realized gain (loss) on closed contracts $ 1,290,712 Change in unrealized gain (loss) on open contracts $ 703,240 The Effect of Derivative Instruments on the Statements of Operations of USOD For the period from commencement of Derivatives Location of Realized Change in Futures Commodity Contracts Realized gain (loss) on closed contracts $ (1,176,665) Change in unrealized gain (loss) on open contracts $ (194,060)

ORGANIZATION AND BUSINESS (Addi

ORGANIZATION AND BUSINESS (Additional Information) (Details) - shares	Dec. 31, 2017	Jul. 20, 2017
Number Of Units Per Basket	50,000	50,000
Transaction Fee Percentage On NAV		0.04%
United States 3x Oil Fund [Member] \| Inception Period [Member] \| Creation Baskets [Member]
Number Of Units Per Basket		50,000
United States 3x Short Oil Fund [Member] \| Inception Period [Member] \| Creation Baskets [Member]
Number Of Units Per Basket		50,000

SUMMARY OF SIGNIFICANT ACCOUN29

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Additional Information) (Details) - shares	12 Months Ended
	Dec. 31, 2017	Jul. 20, 2017
Number Of Units Per Basket	50,000	50,000
United States 3x Oil Fund [Member]
Weighted Average Number of Shares Outstanding, Basic	40
United States 3x Short Oil Fund [Member]
Percentage Fee Paid Per Order	0.02%
USOU or USOD [Member]
Percentage Fee Paid Per Order	0.04%
RMLP or MLPD [Member]
Percentage Fee Paid Per Order	0.02%

TRUST SERIES (Additional Inform

TRUST SERIES (Additional Information) (Details)		1 Months Ended	12 Months Ended
TRUST SERIES (Additional Information) (Details)		Jul. 20, 2017USD ($)$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares		Jul. 19, 2017shares	Jun. 20, 2017USD ($)	Dec. 31, 2016$ / shares	Apr. 15, 2016USD ($)	Mar. 31, 2016USD ($)
Capital Unit [Line Items]
Sponsor Capital Account			$ 4,000
Capital Contributions Initial						$ 1,000
REX S&P MLP Fund [Member]
Capital Unit [Line Items]
Sponsor Capital Account			1,000	[1]					$ 1,000
Rex S&P MLP Inverse Fund [Member]
Capital Unit [Line Items]
Sponsor Capital Account			1,000	[2]				$ 1,000
United States 3x Oil Fund [Member]
Capital Unit [Line Items]
Sponsor Capital Account			$ 1,000			$ 1,000
Common Units Issued For Acquisition \| shares			40
Weighted Average Number of Shares Outstanding, Basic \| shares			40
Number of Units Registered in Period \| shares					30,000,000
Net Asset Value Per Unit \| $ / shares	[3]	$ 25	$ 44.83				$ 25
Units Issued During Period Units New Issues \| shares		100,000
Units Issued During Period Value New Issues		$ 2,500,000
United States 3x Oil Fund [Member] \| Futures Contracts [Member]
Capital Unit [Line Items]
Number Of Contracts			223
United States 3x Oil Fund [Member] \| Futures Contracts [Member] \| New York Mercantile Exchanges [Member]
Capital Unit [Line Items]
Number Of Contracts			223
United States 3x Short Oil Fund [Member]
Capital Unit [Line Items]
Sponsor Capital Account			$ 1,000
Number of Units Registered in Period \| shares					30,000,000
Net Asset Value Per Unit \| $ / shares	[3]	$ 25	$ 11.21				$ 25
Units Issued During Period Units New Issues \| shares		100,000
Units Issued During Period Value New Issues		$ 2,500,000
United States 3x Short Oil Fund [Member] \| Futures Contracts [Member]
Capital Unit [Line Items]
Number Of Contracts			55
United States 3x Short Oil Fund [Member] \| Futures Contracts [Member] \| New York Mercantile Exchanges [Member]
Capital Unit [Line Items]
Number Of Contracts			55

[1]	The Sponsor contributed $1,000 on March 31, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[2]	The Sponsor contributed $1,000 on April 15, 2016. As of December 31, 2017, the Fund is in registration and had not commenced operations.
[3]	Commencement of operations, July 20, 2017.

FEES PAID BY THE FUND AND REL31

FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Additional Information) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Nov. 15, 2017
Fees Paid And Related Party Transactions [Line Items]
Trustee Fees	$ 3,000
Directors and Officers Liability Insurance [Member]
Fees Paid And Related Party Transactions [Line Items]
Noninterest Expense Directors Fees	$ 569,303
REX S&P MLP Fund [Member]
Fees Paid And Related Party Transactions [Line Items]
Percentage Of Average Monthly Net Assets	1.35%	0.95%
Rex S&P MLP Inverse Fund [Member]
Fees Paid And Related Party Transactions [Line Items]
Percentage Of Average Monthly Net Assets	1.65%	0.95%
United States 3x Short Oil Fund [Member]
Fees Paid And Related Party Transactions [Line Items]
Percentage Of Average Monthly Net Assets	0.75%
Noninterest Expense Directors Fees	$ 0
United States 3x Oil Fund [Member]
Fees Paid And Related Party Transactions [Line Items]
Percentage Of Average Monthly Net Assets	0.75%
Noninterest Expense Directors Fees	$ 0
Other General Expense	$ 75,000

CONTRACTS AND AGREEMENTS (Broke

CONTRACTS AND AGREEMENTS (Brokerage Commission) (Details)	12 Months Ended
	Dec. 31, 2017USD ($)	[1]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Floor Brokerage, Exchange and Clearance Fees	$ 13,689
United States 3x Oil Fund [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Floor Brokerage, Exchange and Clearance Fees	$ 7,869
Percentage Of Average Daily Net Assets	0.55%
United States 3x Oil Fund [Member] \| Rebalancing Investments Transaction [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Floor Brokerage, Exchange and Clearance Fees	$ 7,371
Percentage Of Average Daily Net Assets	93.67%
United States 3x Oil Fund [Member] \| Creation And Redemption Activity [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Floor Brokerage, Exchange and Clearance Fees	$ 498
Percentage Of Average Daily Net Assets	6.33%
United States 3x Short Oil Fund [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Floor Brokerage, Exchange and Clearance Fees	$ 5,820
Percentage Of Average Daily Net Assets	0.71%
United States 3x Short Oil Fund [Member] \| Rebalancing Investments Transaction [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Floor Brokerage, Exchange and Clearance Fees	$ 5,313
Percentage Of Average Daily Net Assets	91.29%
United States 3x Short Oil Fund [Member] \| Creation And Redemption Activity [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Floor Brokerage, Exchange and Clearance Fees	$ 507
Percentage Of Average Daily Net Assets	8.71%

[1]	Commencement of operations, July 20, 2017.

CONTRACTS AND AGREEMENTS (Addit

CONTRACTS AND AGREEMENTS (Additional Information) (Details)	12 Months Ended
CONTRACTS AND AGREEMENTS (Additional Information) (Details)	Dec. 31, 2017USD ($)$ / Unit
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Noninterest Expense Transfer Agent and Custodian Fees	$ 20,000
Explanation Of Restriction Applied On Payment Of Annual Fee For Services	The annual minimum amount will not apply if the asset-based charge for all accounts in the aggregate exceeds $75,000.
Maximum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Transaction Fees Paid \| $ / Unit	15
Commissions Paid \| $ / Unit	8
Minimum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Transaction Fees Paid \| $ / Unit	7
Commissions Paid \| $ / Unit	7
Basis Amount For Fee Percentage	$ 75,000
Combined net assets exceed 1 billion [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Base Fee Percentage	0.035%
Combined net assets exceed 1 billion [Member] \| Minimum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Basis Amount For Fee Percentage	$ 1,000,000,000
Combined net assets greater than 500 million but less than 1 billion [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Base Fee Percentage	0.0465%
Combined net assets greater than 500 million but less than 1 billion [Member] \| Maximum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Basis Amount For Fee Percentage	$ 1,000,000,000
Combined net assets greater than 500 million but less than 1 billion [Member] \| Minimum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Basis Amount For Fee Percentage	$ 500,000,000
For the first 500 million [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Base Fee Percentage	0.06%
For the first 500 million [Member] \| Maximum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Basis Amount For Fee Percentage	$ 500,000,000
Marketing Agreement [Member] \| Maximum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Base Fee Percentage	10.00%
Marketing Agreement [Member] \| Minimum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Base Fee Percentage	0.04%
Marketing Agreement [Member] \| On each Trust Series' assets in excess of 3 billion [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Base Fee Percentage	0.06%
Marketing Agreement [Member] \| On each Trust Series' assets in excess of 3 billion [Member] \| Maximum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Basis Amount For Fee Percentage	$ 3,000,000,000
Marketing Agreement [Member] \| On each Trust Series' assets in excess of 3 billion [Member] \| Minimum [Member]
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]
Basis Amount For Fee Percentage	$ 3,000,000,000

FINANCIAL INSTRUMENTS, OFF-BA34

FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES (Additional Information) (Details)	Dec. 31, 2017USD ($)
United States 3x Oil Fund [Member]
Money Market Funds, at Carrying Value	$ 1,000,000
Deposits	2,780,699
United States 3x Short Oil Fund [Member]
Money Market Funds, at Carrying Value	540,000
Deposits	$ 775,082

FINANCIAL HIGHLIGHTS (Per Unit

FINANCIAL HIGHLIGHTS (Per Unit Performance Data and Other Supplemental Financial Data) (Details)	5 Months Ended
	Dec. 31, 2017$ / shares	[1]
United States 3x Oil Fund [Member]
Per Share Operating Performance:
Net Asset Value Per Unit	$ 25
Total income (loss)	20.08
Net expenses	(0.25)
Net increase (decrease) in net asset value	19.83
Net Asset Value Per Unit	$ 44.83
Total Return	79.32%
Ratios to Average Net Assets
Total income (loss)	63.41%
Management fees	1.21%	[2]
Total expenses excluding management fees	0.55%	[2]
Expenses waived	0.00%	[2]
Net expenses excluding management fees	0.55%	[2]
Net income (loss)	62.62%
United States 3x Short Oil Fund [Member]
Per Share Operating Performance:
Net Asset Value Per Unit	$ 25
Total income (loss)	(13.61)
Net expenses	(0.18)
Net increase (decrease) in net asset value	(13.79)
Net Asset Value Per Unit	$ 11.21
Total Return	(55.16%)
Ratios to Average Net Assets
Total income (loss)	(74.49%)
Management fees	1.51%	[2]
Total expenses excluding management fees	0.71%	[2]
Expenses waived	0.00%	[2]
Net expenses excluding management fees	0.71%	[2]
Net income (loss)	(75.48%)

[1]	Commencement of operations, July 20, 2017.
[2]	Annualized.

QUARTERLY FINANCIAL DATA (Detai

QUARTERLY FINANCIAL DATA (Details) - USD ($)	3 Months Ended			12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	[1]	Dec. 31, 2017	[1]
Total Income (Loss)	$ (721,393)	$ (640,360)		$ 646,939
Total Expenses	7,519	10,681		43,247
Net Income (Loss)	$ (728,912)	$ (651,041)		603,692
Net Income (Loss) per Share	$ (7.28)	$ (6.51)
United States 3x Oil Fund [Member]
Total Income (Loss)	$ 1,496,195	$ 512,497		2,008,692
Total Expenses	14,632	10,415		25,047
Net Income (Loss)	$ 1,481,563	$ 502,082		$ 1,983,645
Net Income (Loss) per Share	$ 14.81	$ 5.02		$ 19.83

[1]	Commencement of operations, July 20, 2017.

FAIR VALUE OF FINANCIAL INSTR37

FAIR VALUE OF FINANCIAL INSTRUMENTS (Valuation of Securities Using Fair Value Hierarchy) (Details)	Dec. 31, 2017USD ($)
United States 3x Oil Fund [Member] \| UNITED STATES
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	$ 703,240
United States 3x Oil Fund [Member] \| Short-term Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	1,647,421
United States 3x Oil Fund [Member] \| Fair Value, Inputs, Level 1 [Member] \| UNITED STATES
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	703,240
United States 3x Oil Fund [Member] \| Fair Value, Inputs, Level 1 [Member] \| Short-term Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	1,647,421
United States 3x Oil Fund [Member] \| Fair Value, Inputs, Level 2 [Member] \| UNITED STATES
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	0
United States 3x Oil Fund [Member] \| Fair Value, Inputs, Level 2 [Member] \| Short-term Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	0
United States 3x Oil Fund [Member] \| Fair Value, Inputs, Level 3 [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	0
United States 3x Oil Fund [Member] \| Fair Value, Inputs, Level 3 [Member] \| UNITED STATES
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	0
United States 3x Short Oil Fund [Member] \| UNITED STATES
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	(194,060)
United States 3x Short Oil Fund [Member] \| Short-term Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	1,088,158
United States 3x Short Oil Fund [Member] \| Fair Value, Inputs, Level 1 [Member] \| UNITED STATES
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	(194,060)
United States 3x Short Oil Fund [Member] \| Fair Value, Inputs, Level 1 [Member] \| Short-term Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	1,088,158
United States 3x Short Oil Fund [Member] \| Fair Value, Inputs, Level 2 [Member] \| UNITED STATES
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	0
United States 3x Short Oil Fund [Member] \| Fair Value, Inputs, Level 2 [Member] \| Short-term Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	0
United States 3x Short Oil Fund [Member] \| Fair Value, Inputs, Level 3 [Member] \| UNITED STATES
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	0
United States 3x Short Oil Fund [Member] \| Fair Value, Inputs, Level 3 [Member] \| Short-term Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Investments, Fair Value Disclosure	$ 0

FAIR VALUE OF FINANCIAL INSTR38

FAIR VALUE OF FINANCIAL INSTRUMENTS (Fair Value of Derivative Instruments Held by Usou and Usod) (Details) - Commodity Contract [Member] - Assets [Member]	Dec. 31, 2017USD ($)
United States 3x Oil Fund [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	$ 703,240
United States 3x Short Oil Fund [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	$ (194,060)

FAIR VALUE OF FINANCIAL INSTR39

FAIR VALUE OF FINANCIAL INSTRUMENTS (Effect of Derivative Instruments on the Condensed Statements of Operations of Usou and Usod) (Details)	12 Months Ended
	Dec. 31, 2017USD ($)
Gain (Loss) on Sale of Investments	$ 114,047	[1]
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	509,180	[1]
United States 3x Oil Fund [Member]
Gain (Loss) on Sale of Investments	1,290,712	[1]
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	703,240	[1]
United States 3x Oil Fund [Member] \| Commodity Contract [Member] \| Futures [Member] \| Realized gain loss on closed contracts [Member]
Gain (Loss) on Sale of Investments	1,290,712
United States 3x Oil Fund [Member] \| Commodity Contract [Member] \| Futures [Member] \| Change in unrealized gain loss on open contracts [Member]
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	703,240
United States 3x Short Oil Fund [Member]
Gain (Loss) on Sale of Investments	(1,176,665)	[1]
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	(194,060)	[1]
United States 3x Short Oil Fund [Member] \| Commodity Contract [Member] \| Futures [Member] \| Realized gain loss on closed contracts [Member]
Gain (Loss) on Sale of Investments	(1,176,665)
United States 3x Short Oil Fund [Member] \| Commodity Contract [Member] \| Futures [Member] \| Change in unrealized gain loss on open contracts [Member]
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	$ (194,060)

[1]	Commencement of operations, July 20, 2017.