Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2014

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   September 30,				Nine Months Ended   September 30,
	2014		2013		2014		2013
	(in millions)
Current period settlements on derivative contracts	$	38.2	$	33.9	$	93.2	$	(3.9	)
Gain on derivatives, net	25.7		72.5		171.1		173.0

Schedule of offsetting assets recorded as current assets and non-current assets in prepaid expenses and other current assets and other long-term assets in the Condensed Consolidated Balance Sheets

The offsetting assets and liabilities for the Refining Partnership’s derivatives as of September 30, 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 September 30, 2014
Description	Gross  Current Assets		Gross Amounts Offset		Net Current Assets  Presented		Cash Collateral  Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	53.2	$	—	$	53.2	$	—	$	53.2
Total	$	53.2	$	—	$	53.2	$	—	$	53.2

	As of September 30, 2014
Description	Gross  Non-Current Assets		Gross Amounts Offset		Net Non-Current Assets  Presented		Cash Collateral  Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	8.6	$	—	$	8.6	$	—	$	8.6
Total	$	8.6	$	—	$	8.6	$	—	$	8.6

The offsetting assets and liabilities for the Refining Partnership’s derivatives as of December 31, 2013 are recorded as current assets, non-current assets, current liabilities and non-current liabilities in prepaid expenses and other current assets, other long-term assets, other current liabilities and other long-term liabilities, respectively, in the Condensed Consolidated Balance Sheets as follows:

	As of December 31, 2013
Description	Gross  Current Assets		Gross Amounts Offset			Net Current Assets  Presented		Cash Collateral  Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	4.3	$	(3.4	)	$	0.9	$	—	$	0.9
Total	$	4.3	$	(3.4	)	$	0.9	$	—	$	0.9

	As of December 31, 2013
Description	Gross  Non-Current Assets		Gross Amounts Offset		Net Non-Current Assets  Presented		Cash Collateral  Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	0.1	$	—	$	0.1	$	—	$	0.1
Total	$	0.1	$	—	$	0.1	$	—	$	0.1

Schedule of offsetting liabilities recorded as current liabilities and non-current liabilities in other current liabilities and other long-term liabilities in the Condensed Consolidated Balance Sheet

	As of December 31, 2013
Description	Gross  Current Liabilities		Gross Amounts Offset			Net Current Liabilities  Presented		Cash Collateral  Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	31.4	$	(16.1	)	$	15.3	$	—	$	15.3
Total	$	31.4	$	(16.1	)	$	15.3	$	—	$	15.3

	As of December 31, 2013
Description	Gross  Non-Current Liabilities		Gross Amounts Offset			Net Non-Current Liabilities  Presented		Cash Collateral  Not Offset		Net Amount
	(in millions)
Commodity Swaps	$	1.9	$	(0.1	)	$	1.8	$	—	$	1.8
Total	$	1.9	$	(0.1	)	$	1.8	$	—	$	1.8