NiSource ESG Update

PREMIER REGULATED UTILITY BUSINESS MiSource Ⓡ NATURAL GAS ELECTRIC NiSource | NYSE: NI | nisource.com COLUMBIA GAS OF KENTUCKY COLUMBIA GAS OF MARYLAND COLUMBIA GAS OF OHIO COLUMBIA GAS OF PENNSYLVANIA COLUMBIA GAS OF VIRGINIA NIPSCO GAS NIPSCO NIPSCO ELECTRIC Significant Scale across Six States ~3.2M Gas Customers ~500K Electric Customers NI LISTED NYSE 10%-12% Compelling expected annual total shareholder return proposition 2021-2024* * Estimated total shareholder return at a constant P/E ratio Note: Structure is post sale of Columbia Gas of Massachusetts, which closed in October 2020 3

View entire presentation