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CONTRACTS AND AGREEMENTS (Tables)
 12 Months Ended
Dec. 31, 2016
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 Year
 
 
For the Year
 
 
For the Year
 
 
 
Ended
 
 
Ended
 
 
Ended
 
 
 
December 31,
 
 
December 31,
 
 
December 31,
 
 
 
2016
 
 
2015
 
 
2014
 
Total commissions accrued to brokers
 
$
6,875,314
 
 
$
5,196,820
 
 
$
988,505
 
Total commissions as an annualized percentage of average total net assets
 
 
0.20
%
 
 
0.20
%
 
 
0.14
%
Commissions accrued as a result of rebalancing
 
$
6,297,055
 
 
$
4,288,005
 
 
$
685,780
 
Percentage of commissions accrued as a result of rebalancing
 
 
91.59
%
 
 
82.51
%
 
 
69.38
%
Commissions accrued as a result of creation and redemption activity
 
$
578,259
 
 
$
908,815
 
 
$
302,725
 
Percentage of commissions accrued as a result of creation and redemption activity
 
 
8.41
%
 
 
17.49
%
 
 
30.62
%