Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended		26 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 362,913	$ 651,775	$ 36,291
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	110,379	214,720	201,322
Long-lived asset impairment	0	0	19,247
Lower of cost or market inventory valuation adjustment	(106,926)	(210,764)	95,805
Earnings of equity method investments, inclusive of distributions		228	594
(Gain) loss on sale of assets		(107)	679
Loss on early extinguishment of debt attributable to unamortized discount		0	2,475
Deferred income taxes	29,164	56,550	7,272
Equity-based compensation expense		17,306	16,557
Change in fair value - derivative instruments		(17,807)	(5,597)
(Increase) decrease in current assets:
Accounts receivable		(121,144)	(5,545)
Inventories		21,255	60,963
Income taxes receivable		24,512	66,943
Prepayments and other		(6,053)	(9,272)
Increase (decrease) in current liabilities:
Accounts payable		61,425	495
Income taxes payable		72,822	22,340
Accrued liabilities		35,161	40,141
Turnaround expenditures		(76,384)	(86,036)
Other, net		4,650	8,724
Net cash provided by (used for) operating activities		728,145	473,398
Cash flows from investing activities:
Additions to properties, plants and equipment		(117,907)	(116,526)
Purchase of PCLI, net of cash acquired		0	(870,627)
Purchases of marketable securities		0	(41,565)
Sales and maturities of marketable securities		0	465,716
Other, net		3,399	3,017
Net cash used for investing activities		(146,078)	(580,509)
Cash flows from financing activities:
Borrowings under credit agreement		305,500	505,000
Repayments under credit agreement		(417,500)	(215,000)
Redemption of senior notes - HEP		0	(309,750)
Proceeds from issuance of common units - HEP		114,831	52,634	$ 82,300
Purchase of treasury stock		(53,743)	0
Dividends		(117,500)	(117,754)
Distributions to noncontrolling interest		(60,759)
Shares withheld for tax withholding obligations		(544)	(274)
Other, net		0	(4,546)
Net cash used for financing activities		(229,715)	(143,466)
Effect of exchange rate on cash flow		(3,237)	324
Cash and cash equivalents:
Increase (decrease) for the period		349,115	(250,253)
Beginning of period		630,757	710,579
End of period	979,872	979,872	460,326	979,872
Cash paid during the period for:
Interest		(64,711)	(64,205)
Income taxes, net		(48,561)	80,348
HEP
Cash flows from investing activities:
Additions to properties, plants and equipment		(31,570)	(20,524)
Cash flows from financing activities:
Borrowings under credit agreement		500,000
Distributions to noncontrolling interest		(60,759)	$ (53,776)
Cash and cash equivalents:
Beginning of period		7,776
End of period	$ 6,656	$ 6,656		$ 6,656