Improving the lives of more than 430,000 customers across the Commonwealth

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

Serving 450 Pennsylvania communities

Headquartered in Canonsburg, we provide natural gas service to residential, commercial and industrial customers in 450 communities in 26 counties throughout Pennsylvania’s greater York, State College and Western Pennsylvania service territories. 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.

Pennsylvania 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 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.

Read More

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

Building strong teams

We’re proud to be part of NiSource, which is the highest-ranked utility on the Forbes magazine list of America’s Best Large Employers.

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’ve been part of the communities we serve since 1885. We volunteer and provide charitable support to organizations that make a positive difference in our neighborhoods and with our customers.  In addition, our WarmWise program helps customers save energy and money, while our payment assistance programs help qualifying customers make ends meet.

Learn More

Pennsylvania employees volunteering
Pennsylvania building

Our leadership

We are 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.

Learn More

Woman business owner at work
Columbia Gas employee smiling

A fully regulated energy provider

We’re regulated by the Pennsylvania Public Utility Commission and other 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.