Contact NiSource Customer Service
NiSource Phone Numbers and Emails
Toll-Free Number:
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(888) 884-7790Individual Stockholders
Customer Service:
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(800) 432-9345Columbia Gas of Kentucky
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(800) 543-8911Columbia Gas of Virginia
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(800) 464-7726NIPSCO
NiSource Email:
General Info
Contact Information
NiSource Website:
NiSource Help Center:
Corporate Office Address:
NiSource Inc
801 E. 86th Avenue
Merrillville,
Indiana
46410
United States
Other Info (opening hours):
Locations:
NiSource Corporate Services
240 W. Nationwide Blvd.,
Columbus, OH 43215, US
Columbia Gas of Kentucky
2001 Mercer Road
Lexington KY 40511
Columbia Gas of Maryland
121 Champion Way
Canonsburg PA 15317
Columbia Gas of Ohio
290 W. Nationwide Boulevard
Columbus OH 43215
Columbia Gas of Virginia
1809 Coyote Drive
Chester VA 23836
Summary of NiSource Customer Service Calls
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Top Reasons of Customers Calls
Consumers Call the Most From
NiSource