Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Components of gain (loss) on derivatives, net

Gain (loss) on derivatives, net and current period settlements on derivative contracts were as follows:



	Three Months Ended March 31,
	2015			2014
	(in millions)
Current period settlements on derivative contracts	$	(6.3	)	$	21.1
Gain (loss) on derivatives, net	(51.4		)	109.4

Schedule of offsetting assets

The offsetting assets and liabilities for the Refining Partnership's derivatives as of December 31, 2014 are recorded as current assets and non-current assets in prepaid expenses and other current assets and other long-term assets, respectively, in the Condensed Consolidated Balance Sheets as follows:



	As of December 31, 2014
Description	Gross Current Assets		Gross Amounts Offset			Net Current Assets Presented		Cash Collateral Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	25.3	$	(0.3	)	$	25.0	$	—	$	25.0
Total	$	25.3	$	(0.3	)	$	25.0	$	—	$	25.0



	As of December 31, 2014
Description	Gross Non-Current Assets		Gross Amounts Offset		Net Non-Current Assets Presented		Cash Collateral Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	22.3	$	—	$	22.3	$	—	$	22.3
Total	$	22.3	$	—	$	22.3	$	—	$	22.3

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



	As of March 31, 2015
Description	Gross Current Assets		Gross Amounts Offset			Net Current Assets Presented		Cash Collateral Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	7.8	$	(0.5	)	$	7.3	$	—	$	7.3
Total	$	7.8	$	(0.5	)	$	7.3	$	—	$	7.3



	As of March 31, 2015
Description	Gross Non-Current Assets		Gross Amounts Offset			Net Non-Current Assets Presented		Cash Collateral Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	14.6	$	(0.1	)	$	14.5	$	—	$	14.5
Total	$	14.6	$	(0.1	)	$	14.5	$	—	$	14.5

Schedule of offsetting liabilities



	As of March 31, 2015
Description	Gross Current Liabilities		Gross Amounts Offset			Net Current Liabilities Presented		Cash Collateral Not Offset			Net Amount
	(in millions)
Commodity Swaps	$	32.9	$	(13.4	)	$	19.5	$	—		$	19.5
Other Derivative Activity	0.1		—			0.1		(0.1		)	—
Total	$	33.0	$	(13.4	)	$	19.6	$	(0.1	)	$	19.5