Union Gas, now a division of Enbridge Gas Inc., is a Canadian natural gas storage, transmission and distribution company based in Chatham-Kent, Ont. The utility safely and reliably distributes natural gas to about 1.5 million homes, businesses and industries. It serves more than 400 communities across Ontario through a network of 70,000 km of underground pipeline.
 As of January 1, 2019, Union Gas Ltd. and Enbridge Gas Distribution amalgamated into one utility with the legal name Enbridge Gas Inc. The research reported was conducted in 2018 for legacy Union Gas.