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Columbia Gas Transmission

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Acquired by TC Energy in 2016, the Columbia Gas Transmission system extends from New York state to the Midwest and Southeast, serving as a link between major natural gas basins and major markets. Thanks to the network’s 11,500 miles (18,500 km) of pipeline and dozens of storage fields in multiple states, Columbia Gas Transmission ensures the heat stays on and businesses stay powered, even when demand spikes.

For commercial information, visit ColumbiaPipeInfo.com.

For information on the related Buckeye XPress project, visit our BXP project page.

11,500 mile
(18,507 km)
pipeline network

Covers 10 states

Delivers natural gas across U.S. East, Midwest and Southeast

Documents and maps

How are we regulated?

Columbia Gas Transmission is governed according to regulations outlined by the U.S. Federal Energy Regulatory Commission (FERC).

Federal Energy Regulatory Commission (FERC)
Local 1-202-502-6088
Toll-Free 1-866-208-3372


Ways to reach us

We’re here to answer your questions. For general questions you can contact us by email, but for a quicker response, please call us directly.

Columbia Gas Transmission (TC Energy)


700 Louisiana Street
Houston, Texas 77002



Emergency Response

Our commitment to the safety of our pipelines and facilities is unwavering. In case of an emergency, please call the appropriate 24-hour toll-free hotline:

Columbia Gas Transmission 1-800-835-7191
TC Energy US: 1-800-447-8066

Landowner Helpline
A key component in maintaining the integrity of our facilities is input from all stakeholders: Indigenous communities, landowners and governments. If you have questions or concerns, please let us know.

Head Office
700 Louisiana Street
Houston, Texas 77002


Media Relations
TC Energy welcomes enquiries from media. Please direct questions to:
1-800-608-7859 Toll-free (North America)

Investor Relations
We welcome inquiries from analysts, shareholders and prospective shareholders at:
1-800-361-6522 Toll-free (North America)