NiSource Inc. (NiSource) is an energy holding company whose subsidiaries provide natural gas, electricity and other products and services to approximately 3.8 million customers located within a corridor that runs from the Gulf Coast through the Midwest to New England. NiSource operates in three business segments: Gas Distribution Operations; Columbia Pipeline Group Operations, and Electric Operations. NiSource’s principal subsidiaries include NiSource Gas Distribution Group, Inc., a natural gas distribution holding company; Columbia Energy Group, a transmission and storage holding company, whose subsidiaries provide service to customers in the Midwest, the Mid-Atlantic and the Northeast, and Northern Indiana Public Service Company, a gas and electric company providing service to customers in northern Indiana. NiSource Finance Corporation is a 100% owned, consolidated finance subsidiary of NiSource.

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