Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 615,848	$ 349,115
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	167,815	181,938
Lower of cost or market inventory valuation adjustment	(142,026)	0
Net loss of equity method investments, inclusive of distributions	8,739	3,082
Gain on sale of assets	(1,639)	0
(Gain) loss on early extinguishment of debt attributable to unamortized discount	(3,788)	1,489
Deferred income taxes	42,143	(13,518)
Equity based compensation expense	14,222	13,846
Change in fair value - derivative instruments	5,841	486
(Increase) decrease in current assets:
Accounts receivable	(35,737)	(81,399)
Inventories	(12,761)	(150,585)
Income taxes receivable	3,368	90,501
Prepayments and other	10,691	3,171
Increase (decrease) in current liabilities:
Accounts payable	(60,448)	307,473
Income taxes payable	(12,073)	0
Accrued liabilities	2,175	20,865
Turnaround expenditures	(38,116)	(9,708)
Other, net	5,686	4,723
Net cash provided by operating activities	569,940	721,479
Cash flows from investing activities:
Additions to properties, plants and equipment	(267,100)	(205,987)
Purchases of marketable securities	(246,008)	(498,080)
Sales and maturities of marketable securities	327,310	543,604
Other, net	2,232	5,021
Net cash used for investing activities	(233,379)	(194,224)
Cash flows from financing activities:
Redemption of senior notes - HFC	(155,156)
Proceeds from product financing arrangement	0	5,964
Purchase of treasury stock	(320,132)	(20,135)
Accelerated stock repurchase forward contract	(60,000)	0
Dividends	(125,192)	(323,088)
Excess tax benefit from equity based compensation	0	3,778
Other, net	(2,111)	(839)
Net cash used for financing activities	(671,187)	(349,056)
Cash and cash equivalents:
Increase (decrease) for the period	(334,626)	178,199
Beginning of period	567,985	940,103
End of period	233,359	1,118,302
Cash paid during the period for:
Interest	25,612	30,702
Income taxes	310,117	118,142
HEP [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	28,950	30,661
Cash flows from investing activities:
Additions to properties, plants and equipment	(49,813)	(38,782)
Cash flows from financing activities:
Borrowings under credit agreement - HEP	254,100	477,100
Repayments under credit agreement - HEP	(221,100)	(297,100)
Redemption of senior notes - HFC	0	(156,188)
Distributions to noncontrolling interest	(41,596)	$ (38,548)
Cash and cash equivalents:
Beginning of period	2,830
End of period	$ 10,424