Investor Presentaiton

Environmental, Social and Governance (ESG)1 Environmental Scope 1 and Scope 2 GHG Intensity Target Established goal to reduce Scope 1 and Scope 2 net emissions intensity by 25% by 2030, through offsets and reductions versus 2020 levels Renewable Fuels Investments Made significant investments in 3 renewable diesel projects in Artesia, NM, Cheyenne, WY and Sinclair, WY Renewable diesel is a cleaner burning fuel and, depending on the feedstock, can have 50% to 80% lower lifecycle GHG emissions compared to conventional diesel Recycling and Water Conservation Our Navajo refinery implemented a project to sell wastewater from its operations to upstream operators to reduce the amount of freshwater used in upstream operations in Artesia, NM, a high-risk region for water scarcity Product Innovation Developed Sonne Natural, a line of 100% natural plant-based products, ENVIRON™ MV, a line of biodegradeable hydraulic oils, and other oils and lubricants designed to promote improved fuel economy, higher energy efficiency and support alternative energy systems Social "One HF Sinclair Culture" program instills integrity, teamwork and ownership at every level, as well as a focus and commitment to safety, human capital management and community relations, teamwork, ownership and inclusion Safety "Goal Zero" Over the past five years ended December 31, 2022, our OSHA² total recordable incident rate declined by 45% Inclusion Commitment to attracting, retaining and developing a diverse and inclusive workforce, including through partnerships with historically Black colleges to offer summer internship opportunities Supporting our employees and communities by investing in racially and ethnically underrepresented groups, women, and veterans through program sponsorships Human Capital Management Invested in professional development scholarships and education assistance programs that enable employees of all levels to enhance their skills and grow professional Community Relations Active volunteering and philanthropic involvement in communities where we operate Governance Board leadership provides significant industry expertise, alongside diverse business, financial and environmental, health and safety experience Board level committees with specific oversight over ESG matters include the Compensation Committee, Environmental, Health, Safety, and Public Policy Committee and the Nominating, Governance and Social Responsibility Committee 10 of 13 directors independent, including chair 2 board members are women 4 racially/ethnically diverse board members Long standing commitment to ethical behavior is inherently tied to how we do business Code of Business Conduct and Ethics among governing principles Executive compensation strongly aligned with shareholders and long-term performance ROCE, TSR, Operational Efficiency, and Safety drive performance pay 5 1. Please see HF Sinclair 2021 Sustainability Report for additional ESG related information. https://www.hfsinclair.com/sustainability/sustainability-report/default.aspx 2. OSHA: Occupational Safety and Health Act HF Sinclair

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