His tariff talk, which started before the inauguration, has already had an impact on some oil stocks. Canada is the largest foreign source of U.S. crude, accounting for 60% of U.S. imports since 2020,

President Donald Trump’s repeated threats to slap steep tariffs on Canada and other friendly nations have left Toronto with some of the world’s worst-performing oil and gas stocks.

Oil futures ended lower on Tuesday as traders weighed prospects for crude supplies after President Donald Trump vowed to boost already record U.S. crude output, threatened to implement a steep tariff on Canadian imports and called for replenishing the Strategic Petroleum Reserve.