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Union Gas, a business unit of Spectra Energy, offers a growing storage and transportation business to and from the Dawn Hub.

Located 22 miles southeast of Sarnia, Ontario, the Union Gas Dawn Facility is a world class natural gas trading hub.

The Dawn Facility is the largest underground storage facility in Canada with 160 Bcf of high deliverability storage.


Southwestern Ontario


160 Bcf


Union Gas Limited 


Union Gas Limited

Dawn Facility mini map