Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2018		Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Sales and other revenues	$ 4,770,799		$ 3,719,247	$ 13,370,462	$ 10,258,594
Operating costs and expenses:
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	3,752,234	[1]	2,888,549	10,695,275	8,283,183
Lower of cost or market inventory valuation adjustment	17,837		(111,128)	(192,927)	(15,323)
Costs of products sold, net	3,770,071		2,777,421	10,502,348	8,267,860
Operating expenses (exclusive of depreciation and amortization)	317,196	[1]	322,277	933,699	946,264
Selling, general and administrative expenses (exclusive of depreciation and amortization)	71,130		68,252	204,469	185,303
Depreciation and amortization	108,885		102,884	323,605	304,206
Long-lived asset impairment	0		0	0	19,247
Total operating costs and expenses	4,267,282		3,270,834	11,964,121	9,722,880
Income from operations	503,517		448,413	1,406,341	535,714
Other income (expense):
Earnings of equity method investments	1,114		5,072	4,127	10,965
Interest income	5,136		1,074	10,660	2,069
Interest expense	(32,399)		(28,731)	(97,446)	(85,534)
Loss on early extinguishment of debt	0		0	0	(12,225)
Gain (loss) on foreign currency transactions	281		19,122	5,516	19,517
Gain on foreign currency swap contracts	0		0	0	24,545
Other, net	741		1,153	3,451	2,550
Other income (expense) total	(25,127)		(2,310)	(73,692)	(38,113)
Income before income taxes	478,390		446,103	1,332,649	497,601
Income tax expense (benefit):
Current	70,595		72,307	216,529	80,242
Deferred	45,663		86,079	102,213	93,351
Income tax expense (benefit)	116,258		158,386	318,742	173,593
Net income	362,132		287,717	1,013,907	324,008
Less net income attributable to noncontrolling interest	19,666		15,703	57,843	39,695
Net income attributable to HollyFrontier stockholders	$ 342,466		$ 272,014	$ 956,064	$ 284,313
Earnings per share attributable to HollyFrontier stockholders:
Basic	$ 1.95		$ 1.53	$ 5.42	$ 1.60
Diluted	1.93		1.53	5.37	1.60
Cash dividends declared per common share	$ 0.33		$ 0.33	$ 0.99	$ 0.99
Average number of common shares outstanding:
Basic	175,097		176,149	175,865	176,143
Diluted	176,927		176,530	177,557	176,616

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