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Prepaid and Other Current Assets
9 Months Ended
Sep. 30, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Prepaid and Other Current Assets
Note 6—Prepaid and Other Current Assets
Prepaid and other current assets at September 30, 2016 and December 31, 2015 consisted of the following (in thousands):
 
September 30, 2016
 
December 31, 2015
Advances to suppliers for crude oil purchases
$
33,626

 
$
36,247

Collateral posted with broker for derivative instruments
5,944

 
20,926

Prepaid insurance
13

 
6,773

Derivative assets

 
4,577

Other
3,577

 
6,914

Total
$
43,160

 
$
75,437