Canada Revives Old Oil Pipeline Ideas Amid U.S. Trade Spat

The U.S. tariff threat was a wake-up call for Canadian policymakers that the federal and provincial governments may have too hastily scrapped over the past decade Alberta-to-coast pipeline projects that could have diversified Canada’s oil and gas exports. Everyone in Canada agrees that energy exports are the biggest leverage the country has in a trade war with its neighbor to the south.

Canada supplies around 60% of all U.S. oil imports. The oil province of Alberta alone supplies 56% of all U.S. oil imports—twice as much as Mexico,…