Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Sales	$ 692.6	$ 851.3
Cost of sales	638.3	715.3
Gross profit	54.3	136.0
Operating costs and expenses:
Selling	13.3	13.3
General and administrative	20.2	34.9
Transportation	30.8	35.9
Taxes other than income taxes	5.0	5.1
Loss on impairment and disposal of assets	6.0	11.7
Other operating expense	3.0	1.3
Operating income (loss)	(24.0)	33.8
Other income (expense):
Interest expense	(29.3)	(32.3)
Gain (Loss) from debt extinguishment	0.0	0.4
Gain on derivative instruments	38.5	9.1
Other	(0.9)	(5.3)
Total other income (expense)	10.1	(17.5)
Net income (loss) before income taxes	(13.9)	16.3
Income tax expense from continuing operations	0.5	(0.1)
Net income (loss) from continuing operations	(14.4)	16.4
Net loss	(14.4)	16.4
Less:
General partner’s interest in net loss	(0.3)	0.3
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic	0.0	0.1
Net income (loss) available to limited partners	$ (14.1)	$ 16.0
Weighted average limited partner units outstanding:
Basic and Diluted	78,399,314	78,111,551
Limited partners' interest basic net income (loss) per unit [Abstract]
From continuing operations	$ (0.18)	$ 0.20
Limited partners’ interest	(0.18)	0.20
Limited partners' interest diluted net income (loss) per unit
From continuing operations	(0.18)	0.20
Limited partners' interest	$ (0.18)	$ 0.20
Oil and Gas, Refining and Marketing [Member]
Sales	$ 692.6	$ 851.3