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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2021 USD ($)
Fees Paid and Related Party Transactions [Line Items]
Licensing fee incurred	$ 9,733	$ 14,531		$ 22,757	$ 31,735
Estimated investor tax reporting cost						$ 725,000
Estimated directors fees and expenses	19,092	$ 19,695		$ 37,983	$ 44,198	65,000
USNG and the Related Public Funds [Member]
Fees Paid and Related Party Transactions [Line Items]
Estimated directors fees and expenses						$ 1,061,000
UNITED STATES GAS FUND LP [Member]
Fees Paid and Related Party Transactions [Line Items]
Monthly fee obligated to pay on average daily total net assets, maximum base fee 1,000,000,000 (as a percentage)				0.60
Average daily total net assets	$ 1,000,000,000			$ 1,000,000,000
Monthly fee obligated to pay on average daily total net assets (as a percentage)				0.50
Licensing Agreements [Member]
Fees Paid and Related Party Transactions [Line Items]
Fee percentage				0.015%
United States Oil Fund LP [Member]
Fees Paid and Related Party Transactions [Line Items]
Ongoing Registration Fees and Other Offering Expenses			$ 180,000	$ 103,290

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Amount of daily average total net assets outstanding.

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Percentage of fee obligated to pay by UNG that are greater than average daily total net assets.

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Noninterest expense related to directors' fees which are fees paid by an Entity to its directors. Directors' fees may be paid in addition to salary and other benefits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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