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Debt (Tables)
 6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt Carrying Amounts
The principal and carrying amounts of long-term debt are as follows:
Carrying Amount (1)
Maturity DateJune 30, 2024December 31, 2023
HollyFrontier Corporation Senior Notes:
5.875% Senior Notes
April 2026$202,900 $202,900 
4.500% Senior Notes
October 203074,966 74,966 
277,866 277,866 
HF Sinclair Senior Notes:
5.875% Senior Notes
April 2026797,100 797,100 
4.500% Senior Notes
October 2030325,034 325,034 
5.000% Senior Notes
February 2028498,879 498,879 
6.375% Senior Notes
April 2027399,875 399,875 
2,020,888 2,020,888 
HEP Senior Notes:
5.000% Senior Notes
February 20281,121 1,121 
6.375% Senior Notes
April 2027125 125 
1,246 1,246 
Total Senior Notes2,300,000 2,300,000 
HEP Credit AgreementJuly 2025350,000 455,500 
HF Sinclair Credit AgreementApril 2026— — 
Total Credit Agreements350,000 455,500 
Unamortized discount and debt issuance costs(14,281)(16,417)
Total long-term debt, net$2,635,719 $2,739,083 
(1)As of June 30, 2024 and December 31, 2023, the carrying amounts of our Senior Notes equaled the principal amounts.

The fair values of the senior notes are as follows:
June 30, 2024December 31, 2023
(In thousands)
HollyFrontier Corporation, HF Sinclair and HEP Senior Notes$2,261,980 $2,271,856