When a furnace kicks on during an Ohio winter or a light switches on in northern Indiana, the gas or power may travel through NiSource's pipes and wires. The company owns two utilities. Columbia runs gas networks in Ohio, Pennsylvania, Virginia, Kentucky and Maryland. A second utility serves gas and electricity customers in northern Indiana. NiSource grows by building more network and recovering that cost from customers. It is now also adding power supply for data centers under long-term contracts.
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