Pub. 3 2021-2022 Issue 3

HF Sinclair Corporation

New Parent Company of HollyFrontier Corporation and Holly Energy Partners, LP

On March 14, 2022, HF Sinclair Corporation (NYSE: DINO) was established as the new parent company of HollyFrontier Corporation and Holly Energy Partners, L.P., and marked the completion of their respective acquisitions of Sinclair Oil and Sinclair Transportation Company from REH Company (formerly known as The Sinclair Companies). HF Sinclair is a leading integrated downstream energy company with enhanced scale and a strong marketing presence in
the Rocky Mountains.

HF Sinclair operates seven refineries with nearly 700,000 barrels per day of crude oil processing capacity, a growing renewables business, and three production facilities (two of which are currently operational and one of which is under construction) expected to produce approximately 380 million gallons of renewables annually. In addition, HF Sinclair owns the general partner interest and 47% of the limited partner interest in Holly Energy Partners, which operates nearly 4,400 miles of pipeline assets. HF Sinclair will utilize the iconic DINO brand at more than 1,300 independent
Sinclair-branded stations, including approximately 160 sites in Utah, and licenses the use of the Sinclair brand at more than 300 additional locations throughout the U.S.

Specific to Utah, a subsidiary of HF Sinclair operates its Woods Cross refinery, and a subsidiary of Holly Energy Partners operates the UNEV pipeline, which provides finish product from Salt Lake City down to Las Vegas. HF Sinclair is excited to welcome our new Utah employees to the company and we are dedicated to being a good corporate citizen. We will continue to support our commitment to Utah consumers to keep energy affordable, sustainable and safe!