Holly Energy Partners, L.P. (NYSE: HEP) (the "Partnership") plans to announce results for its quarter ending June 30, 2021 on August 3, 2021, before the opening of trading on the NYSE. The Partnership has scheduled a webcast conference on August 3, 2021 at 4:00 p.m. Eastern time to discuss financial results.

This webcast may be accessed at:

https://event.on24.com/wcc/r/3193021/C51478754BB4C45444F708FB4361577B

An audio archive of this webcast will be available using the above noted link through August 17, 2021.

About Holly Energy Partners, L.P.:

Holly Energy Partners, L.P., headquartered in Dallas, Texas, provides petroleum product and crude oil transportation, terminalling, storage and throughput services to the petroleum industry, including HollyFrontier Corporation subsidiaries. The Partnership, through its subsidiaries and joint ventures, owns and/or operates petroleum product and crude gathering pipelines, tankage and terminals in Texas, New Mexico, Washington, Idaho, Oklahoma, Utah, Nevada, Wyoming and Kansas as well as refinery processing units in Kansas and Utah.

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