Contracts and Agreements (Tables)

6 Months Ended

Jun. 30, 2015

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			For the six months ended
	June 30, 2015			June 30, 2014
Total commissions accrued to brokers	$	2,282,032		$	411,154
Total commissions as an annualized percentage of average total net assets		0.19	%		0.13	%
Commissions accrued as a result of rebalancing	$	1,877,665		$	240,185
Percentage of commissions accrued as a result of rebalancing		82.28	%		58.42	%
Commissions accrued as a result of creation and redemption activity	$	404,367		$	170,969
Percentage of commissions accrued as a result of creation and redemption activity		17.72	%		41.58	%