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FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2025 USD ($)
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Directors fees and expenses	$ 51,039	$ 65,964
Licensing fee incurred	$ 22,649	30,624
Investor tax reporting cost			$ 1,600,000
UNG
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Monthly fee obligated to pay on average daily total net assets, maximum base fee 1,000,000,000 (as a percentage)	0.6
Average daily total net assets	$ 1,000,000,000
Monthly fee obligated to pay on average daily total net assets (as a percentage)	0.5
Directors fees and expenses			260,000
UNG and the Related Public Funds
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Directors fees and expenses			$ 883,000
Licensing Agreements
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Fee percentage	0.015%
United States Oil Fund LP
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS
Registration fees and offering expenses	$ 42,545	$ 0

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 280
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