Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating costs and expenses:
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	$ 3,704,884	$ 3,595,916	$ 6,904,089	$ 6,943,041
Lower of cost or market inventory valuation adjustment	47,801	(106,926)	(184,545)	(210,764)
Costs of products sold, net	3,752,685	3,488,990	6,719,544	6,732,277
Operating expenses (exclusive of depreciation and amortization)	333,252	296,215	664,844	616,503
Selling, general and administrative expenses (exclusive of depreciation and amortization)	85,317	68,675	173,351	133,339
Depreciation and amortization	126,908	110,379	248,329	214,720
Goodwill, Impairment Loss	152,712	0	152,712	0
Total operating costs and expenses	4,450,874	3,964,259	7,958,780	7,696,839
Sales and other revenues	4,782,615	4,471,236	8,679,862	8,599,663
Income from operations	331,741	506,977	721,082	902,824
Other income (expense):
Income before income taxes	306,153	480,360	670,144	854,259
Earnings of equity method investments	1,783	1,734	3,883	3,013
Interest income	4,588	2,934	10,963	5,524
Interest expense	(34,264)	(32,324)	(70,911)	(65,047)
Gain (loss) on foreign currency transactions	2,213	(325)	4,478	5,235
Other, net	92	1,364	649	2,710
Other income (expense) total	(25,588)	(26,617)	(50,938)	(48,565)
Income tax expense (benefit):
Current	63,364	88,283	118,648	145,934
Deferred	25,972	29,164	58,193	56,550
Income tax expense (benefit)	89,336	117,447	176,841	202,484
Net income	216,817	362,913	493,303	651,775
Less net income attributable to noncontrolling interest	19,902	17,406	43,333	38,177
Net income attributable to HollyFrontier stockholders	$ 196,915	$ 345,507	$ 449,970	$ 613,598
Earnings per share attributable to HollyFrontier stockholders:
Basic	$ 1.16	$ 1.96	$ 2.64	$ 3.47
Diluted	$ 1.15	$ 1.94	$ 2.62	$ 3.44
Average number of common shares outstanding:
Basic	169,356	175,899	170,100	176,256
Diluted	170,547	177,586	171,264	177,820