Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Carrying Amounts Of Long-Term Debt

The carrying amounts of long-term debt are as follows:

	September 30, 2018			December 31, 2017
	(In thousands)
HollyFrontier 5.875% Senior Notes
Principal	$	1,000,000		$	1,000,000
Unamortized discount and debt issuance costs	(7,600		)	(8,315		)
	992,400			991,685
HEP Credit Agreement	921,000			1,012,000
HEP 6% Senior Notes
Principal	500,000			500,000
Unamortized discount and debt issuance costs	(4,252		)	(4,692		)
	495,748			495,308
Total HEP long-term debt	1,416,748			1,507,308
Total long-term debt	$	2,409,148		$	2,498,993

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

The fair values of the senior notes are as follows:

	September 30, 2018		December 31, 2017
	(In thousands)
HollyFrontier senior notes	$	1,065,980	$	1,113,470
HEP senior notes	$	512,840	$	525,120