Almost every day since the expansion of Canada’s Trans Mountain pipeline was completed in May, a tanker laden with oil sands crude shipped through the line has passed under Vancouver’s Lions Gate Bridge en route to refineries around the Pacific.

A tariff on oil imports could lead to lower production of fuel at those facilities and drive up costs for consumers, analysts and companies have warned.

President Trump’s tariff on Canadian oil is expected to raise prices at the pump for U.S. consumers, if it takes effect as planned after a 30-day delay. Analysts told The Hill that the 10 percent