Alan, do you also remember the CalOil case, in which the SCC confirmed the federal government's authority to regulate and limit the import of foreign oil to Ontario and Quebec?  The reason for that policy that restricted imports? To subsidize the development of the Canadian oil industry by restricting the flow of lower-priced foreign oil to Canada's population centres, forcing consumers there to pay the higher, made-in-Canada price. No complaints from the rugged free-enterprising Canadian oil industry then!