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Derivatives (Tables)
 9 Months Ended
Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Fair Value, Assets Measured on Recurring Basis
The following table provides information on the fair value amounts (in thousands) of these derivatives as of September 30, 2016 and December 31, 2015 and their placement within our condensed consolidated balance sheets. 
 
Balance Sheet Location
 
September 30, 2016
 
December 31, 2015
 
 
 
Asset (Liability)
Commodity derivatives (1)
Prepaid and other current assets
 
$
—

 
$
4,577

Commodity derivatives (1)
Other long-term assets
 
1,997

 
—

Commodity derivatives
Other accrued liabilities
 
(5,149
)
 
(9,534
)
Commodity derivatives
Other liabilities
 
(430
)
 
(4,925
)
J. Aron repurchase obligation derivative
Obligations under inventory financing agreements
 
(10,546
)
 
9,810

Interest rate derivatives
Other long-term assets
 
151

 
—

Interest rate derivatives
Other accrued liabilities
 
(430
)
 
—

Interest rate derivatives
Other liabilities
 
(216
)
 
—


_________________________________________________________
(1)
Does not include cash collateral of $6.0 million and $20.9 million recorded in Prepaid and other current assets and $7.0 million and $7.0 million in Other long-term assets as of September 30, 2016 and December 31, 2015, respectively.
Fair value amounts by hierarchy level as of September 30, 2016 and December 31, 2015 are presented gross in the tables below (in thousands):
 
September 30, 2016
 
Level 1
 
Level 2
 
Level 3
 
Gross Fair Value
 
Effect of Counter-Party Netting
 
Net Carrying Value on Balance Sheet (1)
Assets
 
 
 
 
 
 
 
 
 
 
 
Commodity derivatives
$
—

 
$
9,290

 
$
—

 
$
9,290

 
$
(7,293
)
 
$
1,997

Interest rate derivatives
—

 
228

 
—

 
228

 
(77
)
 
151

Total
$
—

 
$
9,518

 
$
—

 
$
9,518

 
$
(7,370
)
 
$
2,148

 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
 
 
 
 
 
 
 
 
 
Common stock warrants
$
—

 
$
—

 
$
(4,619
)
 
$
(4,619
)
 
$
—

 
$
(4,619
)
Contingent consideration
—

 
—

 
(17
)
 
(17
)
 
—

 
(17
)
Commodity derivatives
(2,322
)
 
(10,550
)
 
—

 
(12,872
)
 
7,293

 
(5,579
)
J. Aron repurchase obligation derivative
—

 
—

 
(10,546
)
 
(10,546
)
 
—

 
(10,546
)
Interest rate derivatives
—

 
(723
)
 
—

 
(723
)
 
77

 
(646
)
Total
$
(2,322
)
 
$
(11,273
)
 
$
(15,182
)
 
$
(28,777
)
 
$
7,370

 
$
(21,407
)
 
December 31, 2015
 
Level 1
 
Level 2
 
Level 3
 
Gross Fair Value
 
Effect of Counter-Party Netting
 
Net Carrying Value on Balance Sheet (1)
Assets
 
 
 
 
 
 
 
 
 
 
 
Commodity derivatives
$
429

 
$
33,797

 
$
—

 
$
34,226

 
$
(29,649
)
 
$
4,577

J. Aron repurchase obligation derivative
—

 
—

 
9,810

 
9,810

 
(9,810
)
 
—

Total
$
429

 
$
33,797

 
$
9,810

 
$
44,036

 
$
(39,459
)
 
$
4,577

 
 
 
 
 
 
 
 
 
 
 
 
Liabilities
 
 
 
 
 
 
 
 
 
 
 
Common stock warrants
$
—

 
$
—

 
$
(8,096
)
 
$
(8,096
)
 
$
—

 
$
(8,096
)
Contingent consideration
—

 
—

 
(27,581
)
 
(27,581
)
 
—

 
(27,581
)
Commodity derivatives
(396
)
 
(43,712
)
 
—

 
(44,108
)
 
29,649

 
(14,459
)
J. Aron repurchase obligation derivative
—

 
—

 
—

 
—

 
9,810

 
9,810

Total
$
(396
)
 
$
(43,712
)
 
$
(35,677
)
 
$
(79,785
)
 
$
39,459

 
$
(40,326
)
_________________________________________________________
(1)
Does not include cash collateral of $13.0 million and $28.0 million as of September 30, 2016 and December 31, 2015, respectively, included within Prepaid and other current assets and Other long-term assets on our condensed consolidated balance sheets.
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location
The following table summarizes the pre-tax gains (losses) recognized in Net income (loss) on our condensed consolidated statements of operations resulting from changes in fair value of derivative instruments not designated as hedges charged directly to earnings (in thousands): 
 
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
Statement of Operations Location
 
2016
 
2015
 
2016
 
2015
Commodity derivatives
Cost of revenues (excluding depreciation)
 
$
(3,028
)
 
$
10,940

 
$
(3,117
)
 
$
13,512

J. Aron repurchase obligation derivative
Cost of revenues (excluding depreciation)
 
(8,300
)
 
—

 
(20,356
)
 
—

Interest rate derivatives
Interest expense
 
1,204

 
—

 
(1,098
)
 
—