Investor Presentaiton

GIBSON ENERGY INVESTOR PRESENTATION Superior Long-Term Shareholder Returns Consistent outperformance of the TSX Composite and TSX Energy indices Total Shareholder Return: Since IPO & 2018 Investor Day (1) 25 Since IPO (June 15, 2011) 250% 200% 150% 100% 50% 0% (50%) (100%) 2011 2012 2013 New Strategy Announced (Investor Day 2018) 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Since 2018 Investor Day (January 30, 2018) 100% 75% 50% 25% 0% (25%) (50%) (75%) (100%) 2018 2019 2020 2021 2022 2023 (1) Total Shareholder Return as at October 27, 2023. GEI +178% TSX Composite +110% TSX Energy +30% TSX Energy +79% GEI +68% TSX Composite +41%

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