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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.


Electrical Outage, Emergency: 1-800-4NIPSCO
Gas Emergency: 1-800-634-3524
Customer Care: 1-800-4NIPSCO

Columbia Gas of Kentucky
Emergency: 1-800-432-9515
Customer Care: 1-800-432-9345

Columbia Gas of Maryland
Emergency: 1-888-460-4332
Customer Care: 1-888-460-4332

Columbia Gas of Massachusetts
Emergency: 1-800-525-8222
Customer Care: 1-800-688-6160

Columbia Gas of Ohio
Emergency: 1-800-344-4077
Customer Care: 1-800-344-4077

Columbia Gas of Pennsylvania
Emergency: 1-888-460-4332
Customer Care: 1-888-460-4332

Columbia Gas of Virginia
Emergency: 1-800-544-5606
Customer Care: 1-800-543-8911

Our Locations

Please note: The locations below are not customer service centers or authorized payment locations.

Columbia Gas of Kentucky Headquarters
2001 Mercer Road
Lexington KY 40511 Map
Columbia Gas of Maryland Headquarters
121 Champion Way
Canonsburg PA 15317 Map
Columbia Gas of Massachusetts Headquarters
4 Technology Drive
Westborough MA 01581 Map
Columbia Gas of Ohio Headquarters
290 W. Nationwide Boulevard
Columbus OH 43215 Map
Columbia Gas of Pennsylvania Headquarters
121 Champion Way
Canonsburg PA 15317 Map
Columbia Gas of Virginia Headquarters
1809 Coyote Drive
Chester VA 23836 Map
NIPSCO Headquarters
801 E. 86th Avenue
Merrillville IN 46410 Map
NiSource Corporate Headquarters
801 E. 86th Avenue
Merrillville IN 46410 Map

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