Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 826,455	$ 536,673
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	255,579	262,883
Lower of cost or market inventory valuation adjustment	83,425	0
Net loss of equity method investments, inclusive of distributions	8,282	5,268
Gain on sale of assets	(8,619)	556
(Gain) loss on early extinguishment of debt due to unamortized premium/discount	(3,788)	1,489
Deferred income taxes	(63,172)	(2,169)
Equity based compensation expense	21,928	20,728
Change in fair value - derivative instruments	17,861	(12,199)
(Increase) decrease in current assets:
Accounts receivable	68,021	8,530
Inventories	(85,318)	(225,698)
Income taxes receivable	11,719	76,488
Prepayments and other	(8,312)	24,719
Increase (decrease) in current liabilities:
Accounts payable	(203,289)	109,912
Income taxes payable	19,894	0
Accrued liabilities	13,503	27,327
Turnaround expenditures	(55,905)	(32,236)
Other, net	5,077	3,662
Net cash provided by operating activities	903,341	805,933
Cash flows from investing activities:
Additions to properties, plants and equipment	(416,611)	(307,476)
Purchase of equity method investment - HEP	54,641
Proceeds from sale of assets	15,831	14,711
Purchases of marketable securities	(402,984)	(762,224)
Sales and maturities of marketable securities	490,251	863,769
Other, net	0	5,021
Net cash used for investing activities	(425,440)	(247,856)
Cash flows from financing activities:
Redemption of senior notes	(155,156)
Purchase of treasury stock	(481,766)	(133,150)
Dividends	(187,372)	(485,766)
Excess tax benefit from equity based compensation	0	4,482
Other, net	(3,495)	(5,059)
Net cash used for financing activities	(806,155)	(642,154)
Cash and cash equivalents:
Increase (decrease) for the period	(328,254)	(84,077)
Beginning of period	567,985	940,103
End of period	239,731	856,026
Cash paid during the period for:
Interest	40,608	45,672
Income taxes	484,516	222,488
HEP [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	44,869	45,739
Cash flows from investing activities:
Additions to properties, plants and equipment	(57,286)	(61,657)
Purchase of equity method investment - HEP	(54,641)	0
Cash flows from financing activities:
Borrowings under credit agreement - HEP	443,000	538,600
Repayments under credit agreement - HEP	(360,000)	(346,600)
Redemption of senior notes	0	(156,188)
Distributions to noncontrolling interest	(61,366)	$ (58,473)
Cash and cash equivalents:
Beginning of period	2,830
End of period	$ 10,856