XML 38 R23.htm IDEA: XBRL DOCUMENT v3.8.0.1
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Additional Information) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Fees Paid and Related Party Transactions [Line Items]        
USCF Management Fee     UNG. For these services, UNG is contractually obligated to pay USCF a fee, which is paid monthly, that is equal to 0.60% per annum of average daily total net assets of $1,000,000,000 or less and 0.50% per annum of average daily total net assets that are greater than $1,000,000,000  
Licensing fee incurred $ 17,446 $ 20,577 $ 52,454 $ 59,219
Estimated investor tax reporting cost     1,100,000  
Estimated directors fees and expenses $ 15,964 $ 15,881 45,571 78,027
USNG and the Related Public Funds [Member]        
Fees Paid and Related Party Transactions [Line Items]        
Estimated directors fees and expenses     539,350  
UNITED STATES GAS FUND LP [Member]        
Fees Paid and Related Party Transactions [Line Items]        
Licensing fee incurred     52,454 59,219
Estimated directors fees and expenses     $ 62,300  
First $1,000,000,000 of combined net assets of the funds [Member]        
Fees Paid and Related Party Transactions [Line Items]        
Basis Amount For Fee Percentage     1,000,000,000  
Combined net assets above $1,000,000,000 [Member]        
Fees Paid and Related Party Transactions [Line Items]        
Basis Amount For Fee Percentage     1,000,000,000  
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     $ 163,361 $ 303,041