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Fair Value of Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2015
Fair Value Disclosures [Abstract]  
Valuation of Securities Using Fair Value Hierarchy
The following table summarizes the valuation of USL’s securities at March 31, 2015 using the fair value hierarchy:
 
At March 31, 2015
 
Total
 
Level I
 
Level II
 
Level III
 
Short-Term Investments
 
$
50,992,391
 
$
50,992,391
 
$
 
$
 
Exchange-Traded Futures Contracts
 
 
 
 
 
 
 
 
 
 
 
 
 
United States Contracts
 
 
(15,855,783)
 
 
(15,855,783)
 
 
 
 
 
 
During the three months ended March 31, 2015, there were no transfers between Level I and Level II.
 
The following table summarizes the valuation of USL’s securities at December 31, 2014 using the fair value hierarchy: 
 
At December 31, 2014
 
Total
 
Level I
 
Level II
 
Level III
 
Short-Term Investments
 
$
30,998,094
 
$
30,998,094
 
$
 
$
 
Exchange-Traded Futures Contracts
 
 
 
 
 
 
 
 
 
 
 
 
 
United States Contracts
 
 
(17,096,060)
 
 
(17,096,060)
 
 
 
 
 
 
During the year ended December 31, 2014, there were no transfers between Level I and Level II.
Fair Value of Derivative Instruments
Fair Value of Derivative Instruments
 
 
 
Condensed
 
 
 
 
 
 
 
Derivatives not Accounted
 
Statements of Financial
 
Fair Value
 
Fair Value
 
for as Hedging Instruments
 
Condition Location
 
At March 31, 2015
 
At December 31, 2014
 
Futures - Commodity Contracts
 
Assets
 
$
(15,855,783)
 
$
(17,096,060)
 
Effect of Derivative Instruments on the Statements of Operations
The Effect of Derivative Instruments on the Condensed Statements of Operations
 
 
 
 
For the three months ended
 
For the three months ended
 
 
 
 
 
March 31, 2015
 
March 31, 2014
 
 
 
 
 
 
 
 
Change in
 
 
 
 
Change in
 
 
 
Location of
 
Realized
 
Unrealized
 
Realized
 
Unrealized
 
Derivatives not
 
Gain (Loss)
 
Gain (Loss)
 
Gain (Loss)
 
Gain (Loss)
 
Gain (Loss)
 
Accounted for
 
on Derivatives
 
on Derivatives
 
on Derivatives
 
on Derivatives
 
on Derivatives
 
as Hedging
 
Recognized in
 
Recognized in
 
Recognized in
 
Recognized in
 
Recognized in
 
Instruments
 
Income
 
Income
 
Income
 
Income
 
Income
 
Futures – Commodity Contracts
 
Realized gain (loss) on closed contracts
 
$
(6,344,216)
 
 
 
 
$
525,150
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Change in unrealized gain (loss) on open contracts
 
 
 
 
$
1,240,277
 
 
 
 
$
1,106,210