Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of the Fair Value of Assets and Liabilities

The fair value hierarchy for our financial assets and liabilities accounted for at fair value on a recurring basis was as follows (in millions):

	June 30, 2020
	Level 1		Level 2			Level 3		Total
Assets
Commodity derivatives	$	—	$	2,142.4		$	—	$	2,142.4
Commodity investments	1.0		—			—		1.0
Right to receive crude oil barrels	—		35.7			—		35.7
RIN commitment contracts	—		4.1			—		4.1
Total assets	1.0		2,182.2			—		2,183.2
Liabilities
Commodity derivatives	—		(2,115.0		)	—		(2,115.0		)
RIN commitment contracts	—		(4.3		)	—		(4.3		)
Environmental credits obligation deficit	—		(56.6		)	—		(56.6		)
J. Aron supply and offtake obligations	—		(314.0		)	—		(314.0		)
Total liabilities	—		(2,489.9		)	—		(2,489.9		)
Net assets (liabilities)	$	1.0	$	(307.7	)	$	—	$	(306.7	)

	December 31, 2019
	Level 1		Level 2			Level 3		Total
Assets
Commodity derivatives	$	—	$	240.3		$	—	$	240.3
Investment commodities	12.1		—			—		12.1
RIN commitment contracts	—		0.6			—		0.6
Environmental credits obligation surplus	—		16.8			—		16.8
Total assets	12.1		257.7			—		269.8
Liabilities
Commodity derivatives	—		(263.0		)	—		(263.0		)
RIN commitment contracts	—		(1.9		)	—		(1.9		)
Environmental credits obligation deficit	—		(18.5		)	—		(18.5		)
J. Aron supply and offtake obligations	—		(477.3		)	—		(477.3		)
Total liabilities	—		(760.7		)	—		(760.7		)
Net assets (liabilities)	$	12.1	$	(503.0	)	$	—	$	(490.9	)