INVENTORIES (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Inventory [Line Items]
Crude oil and feedstocks	$ 1,307,816,000		$ 1,307,816,000			$ 1,102,007,000
Refined products and blendstocks	1,235,980,000		1,235,980,000			1,267,861,000
Warehouse stock and other	94,490,000		94,490,000			89,680,000
Inventory, Gross	2,638,286,000		2,638,286,000			2,459,548,000
Lower of cost or market adjustment	(763,122,000)	$ 900,493,000	(763,122,000)	$ 900,493,000	$ (612,027,000)	(595,988,000)	$ (1,058,273,000)	$ 1,117,336
Inventories	1,875,164,000		1,875,164,000			1,863,560,000
Operating Income (Loss)	142,274,000	(209,254,000)	174,136,000	(179,255,000)
Net income (loss)	(205,376,000)	181,504,000	(270,916,000)	83,076,000
Titled Inventory [Member]
Inventory [Line Items]
Crude oil and feedstocks	1,307,816,000		1,307,816,000			1,102,007,000
Refined products and blendstocks	935,041,000		935,041,000			915,397,000
Warehouse stock and other	94,490,000		94,490,000			89,680,000
Inventory, Gross	2,337,347,000		2,337,347,000			2,107,084,000
Lower of cost or market adjustment	(650,702,000)		(650,702,000)			(492,415,000)
Inventories	1,686,645,000		1,686,645,000			1,614,669,000
Inventory Supply and Offtake Arrangements [Member]
Inventory [Line Items]
Crude oil and feedstocks	0		0			0
Refined products and blendstocks	300,939,000		300,939,000			352,464,000
Warehouse stock and other	0		0			0
Inventory, Gross	300,939,000		300,939,000			352,464,000
Lower of cost or market adjustment	(112,420,000)		(112,420,000)			(103,573,000)
Inventories	188,519,000		188,519,000			$ 248,891,000
Scenario, Adjustment [Member]
Inventory [Line Items]
Operating Income (Loss)	151,095,000	157,780,000	167,134,000	(216,843)
Net income (loss)	$ 151,000	$ 158,000	$ 167,000	$ 217,000