On December 1, 2023, Holly Energy Partners, L.P. (the Partnership), as borrower, HF Sinclair Corporation (Parent), as parent guarantor, Wells Fargo Bank, National Association ("Wells Fargo"), as administrative agent and an issuing bank, and the financial institutions party thereto as lenders entered into that certain Amendment No. 3 to Third Amended and Restated Credit Agreement (the Amendment"), which amended certain terms of that certain Third Amended and Restated Credit Agreement, dated as of July 27, 2017 by and among the Partnership, as borrower, Wells Fargo, as administrative agent and an issuing bank, and each of the financial institutions party thereto from time to time as lenders (as amended, restated, modified or supplemented from time to time, including without limitation, as amended by the Amendment, the Credit Agreement). The Amendment, among other things, (a) provides a guaranty from Parent and terminates all guaranties from subsidiaries of the Partnership (the Parent Guaranty), (b) amends the definition of Investment Grade Rating in the Credit Agreement to reference the credit rating of Parent's senior unsecured indebtedness, (c) eliminates the requirement to deliver separate audited and unaudited financial statements for the Partnership and its subsidiaries, such that the Partnership must only provide certain segment-level reporting with any compliance certificate delivered in accordance with the Credit Agreement and (d) amends certain covenants to eliminate certain restrictions on (i) amendments to intercompany contracts, (ii) transactions with Parent and its subsidiaries and (iii) investments in and contributions, dividends, transfers and distributions to Parent and its subsidiaries.