HOMEABOUT US OPERATIONS INVESTOR RELATIONS SUSTAINABILITYCAREERSCONTACT US TRANSFER AGENT Effective February 1, 2018, EQ Shareowner Services is our new Transfer Agent and Registrar. Your stockholder records will automatically transfer to EQ Shareowner Services. You may contact EQ Shareowner Services as provided below: ONLINE www.shareowneronline.com TELEPHONE 800-468-9716 (Toll-Free) 651-450-4064 (Outside the United States) WRITTEN CORRESPONDENCE EQ Shareowner Services P.O. Box 64874 St Paul, MN 55164-0854 CERTIFIED AND OVERNIGHT DELIVERY EQ Shareowner Services 1110 Centre Point Curve, Suite 101 Mendota Heights, MN 55120 CONTACT US 2828 N Harwood Street, Suite 1300 Dallas, Texas 75201 214-954-6510 holly.investors@hollyfrontier.com QUICK LINKS SEC FILINGS INVESTOR FAQS INFORMATION REQUEST FORM INVESTOR EMAIL ALERTS Email Address News Events & Presentations Quarterly Reports Annual Reports SEC Filings End of Day Stock Quote SIGN UP UNSUBSCRIBE Careers Accessibility EEO Site Map Privacy Cookies Modern Slavery Policy Terms of Use © Copyright 2021 HollyFrontier Corporation Powered By Q4 Inc. 5.56.0.1 (opens in new window)

HOMEABOUT US OPERATIONS INVESTOR RELATIONS SUSTAINABILITYCAREERSCONTACT US STOCK QUOTE & CHART Price 31.73 Volume 1,480,725 Change -2.23 % Change -6.57% Today's Open 31.60 Previous Close 33.96 Intraday High 32.05 Intraday Low 30.65 52 Week High 42.39 52 Week Low 23.24 Pricing delayed by 20 minutes. Last Updated 11/26/2021 4:00 PM Zoom 1m 3m 6m YTD 1y All From Aug 26, 2021 To Nov 26, 2021 NYSE:HFC News Releases 30. Aug 6. Sep 13. Sep 20. Sep 27. Sep 4. Oct 11. Oct 18. Oct 25. Oct 1. Nov 8. Nov 15. Nov 22. Nov 2010 2012 2014 2016 2018 2020 25 30 35 40 0 1M 2M 3M HISTORIC STOCK LOOKUP Lookup Date: 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 LOOK UP Day's Open 31.60 Closing Price 31.73 Intraday Low 30.65 Intraday High 32.05 Volume 1,480,725 INVESTMENT CALCULATOR Chart the performance of an investment in HFC relative to market indices or to another stock over time AMOUNT ($) START DATE: END DATE: CALCULATE INVESTMENT CONTACT US 2828 N Harwood Street, Suite 1300 Dallas, Texas 75201 214-954-6510 holly.investors@hollyfrontier.com QUICK LINKS SEC FILINGS INVESTOR FAQS INFORMATION REQUEST FORM INVESTOR EMAIL ALERTS Email Address News Events & Presentations Quarterly Reports Annual Reports SEC Filings End of Day Stock Quote SIGN UP UNSUBSCRIBE Careers Accessibility EEO Site Map Privacy Cookies Modern Slavery Policy Terms of Use © Copyright 2021 HollyFrontier Corporation Powered By Q4 Inc. 5.56.0.1 (opens in new window)