Enbridge Gas Inc. is Canada’s largest natural gas storage, transmission and distribution company based in Ontario with a more ... than 170-year history of providing safe and reliable service to customers. The distribution business serves about 3.7 million customers, heating over 75 per cent of Ontario homes. The storage and transmission business offers a variety of storage and transportation services to customers at the Dawn Hub, the largest integrated underground storage facility in Canada and one of the largest in North America. Owned by Enbridge Inc., a Canadian-based leader in energy transportation and distribution, Enbridge Gas Inc. is the amalgamation of Union Gas Limited and Enbridge Gas Distribution Inc. Visit enbridgegas.com or uniongas.com read more