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CONTRACTS AND AGREEMENTS (Tables)
6 Months Ended
Jun. 30, 2018
Contractors [Abstract]  
Brokerage Commission
USO also incurs commissions to brokers for the purchase and sale of Oil Futures Contracts, Other Oil-Related Investments or short-term obligations of the United States of two years or less (“Treasuries”).
 
 
 
For the six months

ended

June 30, 2018
 
 
For the six months

ended

June 30, 2017
 
Total commissions accrued to brokers
 
$
1,346,629
 
 
$
2,526,521
 
Total commissions as annualized percentage of average total net assets
 
 
0.14
%
 
 
0.18
%
Commissions accrued as a result of rebalancing
 
$
1,151,426
 
 
$
2,238,003
 
Percentage of commissions accrued as a result of rebalancing
 
 
85.50
%
 
 
88.58
%
Commissions accrued as a result of creation and redemption activity
 
$
195,203
 
 
$
288,518
 
Percentage of commissions accrued as a result of creation and redemption activity
 
 
14.50
%
 
 
11.42
%