Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income (loss)	$ 288,862	$ (37,782)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	104,341	96,040
Lower of cost or market inventory valuation adjustment	(103,838)	11,823
Earnings of equity method investments, inclusive of distributions	243	273
Gain on sale of assets	(180)	(65)
Loss on early extinguishment of debt attributable to unamortized discount	0	2,475
Deferred income taxes	27,386	7,527
Equity-based compensation expense	8,797	7,410
Change in fair value - derivative instruments	(18,096)	(5,426)
(Increase) decrease in current assets:
Accounts receivable	(136,841)	(200)
Inventories	151,451	14,005
Income taxes receivable	21,111	(18,598)
Prepayments and other	(5,297)	(2,343)
Increase (decrease) in current liabilities:
Accounts payable	(20,065)	(122,744)
Income taxes payable	33,701	288
Accrued liabilities	34,978	41,681
Turnaround expenditures	(56,833)	(47,977)
Other, net	4,064	14,229
Net cash provided by (used for) operating activities	333,784	(39,384)
Cash flows from investing activities:
Additions to properties, plants and equipment	(56,927)	(51,492)
Purchase of PCLI, net of cash acquired	0	(840,432)
Purchases of marketable securities	0	(41,565)
Sales and maturities of marketable securities	0	465,716
Other, net	3,458	3,022
Net cash used for investing activities	(66,081)	(473,016)
Cash flows from financing activities:
Borrowings under credit agreement	227,000	406,000
Repayments under credit agreement	(343,500)	(112,000)
Redemption of senior notes - HEP	0	(309,750)
Proceeds from issuance of common units - HEP	114,529	37,563
Purchase of treasury stock	(25,182)	0
Dividends	(58,856)	(58,992)
Distributions to noncontrolling interest	(29,237)
Shares withheld for tax withholding obligations	(465)	(274)
Other, net	0	(4,374)
Net cash used for financing activities	(115,711)	(68,363)
Effect of exchange rate on cash flow	(1,282)	(304)
Cash and cash equivalents:
Increase (decrease) for the period	150,710	(581,067)
Beginning of period	630,757	710,579
End of period	781,467	129,512
Cash paid during the period for:
Interest	(17,293)	(27,111)
Income taxes, net	(2,857)	(2,513)
HEP
Cash flows from investing activities:
Additions to properties, plants and equipment	(12,612)	(8,265)
Cash flows from financing activities:
Borrowings under credit agreement	500,000
Distributions to noncontrolling interest	(29,237)	$ (26,536)
Cash and cash equivalents:
Beginning of period	7,776
End of period	$ 8,565