AltaGas Value Proposition

3 Global Exports Optimization and Growth ■ Near, medium, and long-term optimization opportunities across platform. Will build on track record of growing from ~35 MBbls/d in 2019 to 110+ MBbls/d currently. ■ ■ Includes rail, logistics, and operations projects to improve connectivity and have lowest possible operating costs. REEF will provide benefits to RIPET, once online. RIPET Bbl/d 210,000 175+ MMBbls/d 180,000 150,000 RIPET Ferndale 120,000 90,000 60,000 30,000 Ferndale 2019 2020 2021 2022 2023E Long-term Capacity RIPET, Ferndale and REEF Propane Exports - BC Propane and Butane Exports - Washington State Notes: See "Forward-looking Information" AltaGas REEF LPG and Bulk Liquids Exports - BC 58

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