NiSource announces long-term agreement with Microsoft expected to increase customer savings and support Indiana’s economic growth

MERRILLVILLE, Ind., October 16, 2026--NiSource Inc. (NYSE: NI) announced today a new long-term energy agreement with Microsoft for its previously announced northwest Indiana campus. The agreement is expected to expand customer savings while supporting economic growth across the region, reflecting NiSource’s continued focus on aligning economic development with customer affordability.