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Great Lakes Gas Transmission


Since 1967, Great Lakes Gas Transmission (GLGT) has delivered Canadian natural gas to communities on both sides of the border. The 2,115-mile (3,404-km) system provides the most direct and cost-effective link between Western Canada’s natural gas basins and population centers in Minnesota, Wisconsin, Michigan and Eastern Canada.

Along the way, the system employs hundreds of people, contributes to local economies and generates tax dollars that municipalities can use to build schools, hospitals, roads and more.

For commercial information, visit TC Plus.com.

Extends 2,115 miles (3,404 km)

Cost-effective link between Western Canada natural gas basin and the US Midwest

Proudly serving Canadian and American families since 1967


Documents and maps



How are we regulated?

GLGT is governed according to regulations outlined by the U.S. Federal Energy Regulatory Commission (FERC). It is also subject to rules and regulations of the Department of Energy (DOE) administered by the Pipeline and Hazardous Materials Safety Administration (PHMSA) and the Environmental Protection Agency (EPA).


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



Ways to reach us

If you have any questions about the Project, please reach out to us via the contact information below. 

Great Lakes Gas Transmission Ltd. Partnership (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, visit our Contact page for our complete list of emergency numbers. 
Landowner Helpline
A key component in maintaining the integrity of our facilities is input from stakeholders: Tribal groups, 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)