Improving the lives of more than 33,000 customers

We’re one of western Maryland’s leading energy companies, with a highly trained team dedicated to providing our customers with the essential energy services they need every day. 

Providing essential service to western Maryland

We provide natural gas service to customers in Maryland’s Garrett, Allegany and Washington counties. We’re one of the seven energy delivery companies of NiSource, who together provide essential natural gas and electric service to nearly 4 million customers.

Maryland Service Territory Map

We invest in the future

As part of our commitment to our customers and communities, we're investing millions each year to provide safe, reliable natural gas service by expanding our system and replacing aging facilities. We partner with diverse suppliers and always keep safety, customer satisfaction and sustainability as our key priorities.

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Mother and son in sunny field
Employees working in the field together

Building strong teams

We're proud to be part of NiSource, a company that has been named by Forbes magazine as one of America's Best Large Employers three years in a row.

We foster an inclusive and diverse workplace where every member of our team is valued, respected and has the opportunity to do great work. Join us and build a career you can point to with pride.

Visit NiSource Careers

Giving back

We have been an integral part of the communities we serve for more than 100 years. We volunteer and provide charitable support to organizations that are working to make a difference in the communities we serve. In addition, our energy efficiency options help customers save energy and money, while our payment assistance programs help qualifying customers make ends meet.

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Training center building

Our leadership team

Our entire team is deeply committed to serving customers, working safely and supporting our local communities.

Meet our Leadership

Economic development

Supporting the future growth and development of our communities is vital and we are actively involved and leading economic development opportunities across the state.

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Columbia Gas employee smiling

A fully regulated energy provider

We're regulated by the Maryland Public Service Commission and state and federal agencies. These organizations approve rate schedules and terms that govern our operations.

See Regulatory Information

Have an emergency?

If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other emergency situation, go outside and call 911 and then call us at 1-888-460-4332.