NiSource Inc. is one of the largest fully-regulated utility companies in the United States, serving approximately 3.5 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO (Northern Indiana Public Service Company) brands.

Based in Merrillville, Indiana, NiSource’s more than 7,000 employees are focused on safely delivering reliable and affordable energy to our customers and communities.

NiSource’s gas utility companies include:
Columbia Gas of Kentucky
Columbia Gas of Maryland
Columbia Gas of Ohio
Columbia Gas of Pennsylvania
Columbia Gas of Virginia
NIPSCO

Our full transactional document processing facility is located in Columbus, Ohio and we are proud partners with the United States Postal Service.

For additional information regarding NiSource (NYSE: NI), please visit www.nisource.com.