Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		35 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 276,486	$ 288,862
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	121,421	104,341
Lower of cost or market inventory valuation adjustment	(232,346)	(103,838)
Earnings of equity method investments, inclusive of distributions	(111)	243
(Gain) loss on sale of assets	(9)	(180)
Deferred income taxes	32,221	27,386
Equity-based compensation expense	9,374	8,797
Change in fair value - derivative instruments	20,909	(18,096)
(Increase) decrease in current assets:
Accounts receivable	(315,106)	(136,841)
Inventories	3,967	151,451
Income taxes receivable	(1,292)	21,111
Prepayments and other	6,543	(5,297)
Increase (decrease) in current liabilities:
Accounts payable	270,802	(20,065)
Income taxes payable	55,555	33,701
Accrued liabilities	43,480	34,978
Turnaround expenditures	(78,597)	(56,833)
Other, net	3,519	4,064
Net cash provided by (used for) operating activities	216,816	333,784
Cash flows from investing activities:
Additions to properties, plants and equipment	(53,017)	(56,927)
Purchase of business, net of cash acquired	(663,385)	0
Other, net	395	3,458
Net cash used for investing activities	(726,725)	(66,081)
Cash flows from financing activities:
Borrowings under credit agreement	104,000	227,000
Repayments under credit agreement	(85,000)	(343,500)
Proceeds from issuance of common units - HEP	0	114,529	$ 82,300
Purchase of treasury stock	(77,825)	(25,647)
Dividends	(56,849)	(58,856)
Distributions to noncontrolling interest	(33,673)	(29,237)
Shares withheld for tax withholding obligations	(408)	0
Proceeds from (Payments for) Other Financing Activities	(373)	0
Net cash used for financing activities	(150,128)	(115,711)
Effect of exchange rate on cash flow	1,424	(1,282)
Cash and cash equivalents:
Increase (decrease) for the period	(658,613)	150,710
Beginning of period	1,154,752
End of period	496,139		496,139
Cash paid during the period for:
Interest	(26,743)	(17,293)
Income taxes, net	(2,686)	(2,857)
HEP
Cash flows from investing activities:
Additions to properties, plants and equipment	(10,718)	(12,612)
Cash flows from financing activities:
Distributions to noncontrolling interest	(33,673)	$ (29,237)
Cash and cash equivalents:
Beginning of period	3,045
End of period	$ 11,540		$ 11,540