by Bloomberg |Wednesday, March 17, 2021 Michigan Gov. Gretchen Whitmer plans to revoke an easement that permitted the pipeline to cross the Straits of Mackinac. (Bloomberg) -- Enbridge Inc. warned that refiners in central Canada and the U.S. Midwest would see crude supplies cut in half and propane costs surge for some homeowners if Michigan’s governor succeeds in shutting a key oil pipeline that crosses the state. Refineries in Michigan, Ohio, Indiana, Pennsylvania as well as those in Ontario and Quebec would have to find alternative means for securing crude oil should Line 5 be shut, requiring the building of new rail terminals and rail cars, Vern Yu, the company’s president of liquid pipelines, told Canadian lawmakers Tuesday. Michigan homeowners that rely on propane to warm their homes would see prices increase by 38 cents a gallon and airports in Detroit and Toronto would face jet fuel shortages.