Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Components of gain (loss) on derivatives, net

Loss on derivatives, net and current period settlements on derivative contracts were as follows:



	Three Months Ended September 30,					Nine Months Ended September 30,
	2016			2015		2016			2015
	(in millions)
Current period settlements on derivative contracts	$	6.7		$	0.8	$	35.2		$	(34.0	)
Loss on derivatives, net	(1.7		)	11.8		(4.8		)	(52.2		)

Schedule of offsetting assets

The offsetting assets and liabilities for the Refining Partnership's derivatives as of December 31, 2015 are recorded as current assets and current liabilities in prepaid expenses and other current assets and other current liabilities, respectively, in the Condensed Consolidated Balance Sheets as follows:



	As of December 31, 2015
Description	Gross Current Assets		Gross Amounts Offset			Net Current Assets Presented		Cash Collateral Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	44.8	$	(0.1	)	$	44.7	$	—	$	44.7
Total	$	44.8	$	(0.1	)	$	44.7	$	—	$	44.7

The offsetting assets and liabilities for the Refining Partnership's derivatives as of September 30, 2016 are recorded as current assets and current liabilities in prepaid expenses and other current assets and other current liabilities, respectively, in the Condensed Consolidated Balance Sheets as follows:



	As of September 30, 2016
Description	Gross Current Assets		Gross Amounts Offset			Net Current Assets Presented		Cash Collateral Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	6.3	$	(0.2	)	$	6.1	$	—	$	6.1
Total	$	6.3	$	(0.2	)	$	6.1	$	—	$	6.1

Schedule of offsetting liabilities



	As of September 30, 2016
Description	Gross Current Liabilities		Gross Amounts Offset			Net Current Liabilities Presented		Cash Collateral Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	1.7	$	(0.2	)	$	1.5	$	—	$	1.5
Total	$	1.7	$	(0.2	)	$	1.5	$	—	$	1.5



	As of December 31, 2015
Description	Gross Current Liabilities		Gross Amounts Offset		Net Current Liabilities Presented		Cash Collateral Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	0.1	$	—	$	0.1	$	—	$	0.1
Total	$	0.1	$	—	$	0.1	$	—	$	0.1