Contact Us
Call or email. We want to hear from you
Our contact channels can be found below. If you're a customer, media representative, or just looking for assistance or additional information, use one of the ways below to get in touch with us.
Individual Stockholders:
Computershare at 1-888-884-7790
Retirees (Benefit Information):
Hewitt Associates at 1-888-640-3320
Send Us a Message
We review all submissions and forward them to the appropriate person, department or business. Please note this is a generic submission for NiSource and should not be used for customer service inquiries.
CUSTOMER SUPPORT
NIPSCO
Electrical Outage, Emergency: 1-800-4NIPSCO
(1-800-464-7726)
Gas Emergency: 1-800-634-3524
Customer Care: 1-800-4NIPSCO
NIPSCO.com
Columbia Gas of Kentucky
Emergency: 1-800-432-9515
Customer Care: 1-800-432-9345
ColumbiaGasKY.com
Columbia Gas of Maryland
Emergency: 1-888-460-4332
Customer Care: 1-888-460-4332
ColumbiaGasMD.com
Columbia Gas of Ohio
Emergency: 1-800-344-4077
Customer Care: 1-800-344-4077
ColumbiaGasOhio.com
Columbia Gas of Pennsylvania
Emergency: 1-888-460-4332
Customer Care: 1-888-460-4332
ColumbiaGasPA.com
Columbia Gas of Virginia
Emergency: 1-800-544-5606
Customer Care: 1-800-543-8911
ColumbiaGasVA.com
Our Locations
Please note: The locations below are not customer service centers or authorized payment locations.
Columbia Gas of Kentucky Headquarters
Lexington KY 40511 Map
Columbia Gas of Maryland Headquarters
Canonsburg PA 15317 Map
Columbia Gas of Ohio Headquarters
Columbus OH 43215 Map
Columbia Gas of Pennsylvania Headquarters
Canonsburg PA 15317 Map
Columbia Gas of Virginia Headquarters
Chester VA 23836 Map
NIPSCO Headquarters
Merrillville IN 46410 Map
NiSource Corporate Headquarters
Merrillville IN 46410 Map
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