NiSource Inc. (NI) is a leading U.S. utility holding company headquartered in Merrillville, Indiana. As of October 2025, it serves nearly 4 million natural gas customers and electric customers across six states through its subsidiaries, including Columbia Gas and Northern Indiana Public Service Company (NIPSCO). NiSource’s market cap stands at $20.2 billion. The leading natural gas distribution company is expected to announce its fiscal third-quarter earnings for 2025 soon. Ahead of the event, analysts ex ...