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Debt (Tables)
 6 Months Ended
Jun. 30, 2025
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt Carrying Amounts
During the six month period ended June 30, 2025, we used a portion of the funds to complete an early settlement of a cash tender offer for $647 million in aggregate principal amount (the “Tender Offer”) as follows:

Maturity DateAggregate Principal Amount Accepted
Purchase Price Including Premium
Interest Paid
(In millions)
HF Sinclair Senior Notes:
5.875% Senior Notes
April 2026$449 $452 $9 
6.375% Senior Notes
April 2027150 153 3 
$599 $605 $12 
HollyFrontier Senior Notes:
5.875% Senior Notes
April 2026$48 $49 $1 
Total$647 $654 $13 
The principal and carrying amounts of Long-term debt are as follows:
Carrying Amount (1)
Maturity DateJune 30, 2025December 31, 2024
(In millions)
HF Sinclair Senior Notes:
5.875% Senior Notes
April 2026$154 $797 
6.375% Senior Notes
April 2027250 400 
5.000% Senior Notes
February 2028499 499 
4.500% Senior Notes
October 2030325 325 
5.750% Senior Notes
January 2031650 — 
6.250% Senior Notes
January 2035750 — 
2,628 2,021 
HollyFrontier Senior Notes:
5.875% Senior Notes
April 2026— 203 
4.500% Senior Notes
October 203075 75 
75 278 
HEP Senior Notes:
6.375% Senior Notes
April 2027— — 
5.000% Senior Notes
February 20281 1 
1 1 
Total Senior Notes2,704 2,300 
Terminated HEP Credit Agreement
July 2025— 350 
Terminated HF Sinclair Credit Agreement
April 2026— — 
HF Sinclair Credit Agreement
April 2030— — 
Total Credit Agreements— 350 
Total debt at face value2,704 2,650 
Unamortized discount and debt issuance costs(27)(12)
Total debt2,677 2,638 
Current debt— (350)
Long-term debt$2,677 $2,288 
(1)As of June 30, 2025 and December 31, 2024, the carrying amounts of our Senior Notes equaled the principal amounts.

The fair values of the senior notes are as follows:
June 30, 2025December 31, 2024
(In millions)
HF Sinclair, HollyFrontier and HEP Senior Notes$2,725 $2,284