About one-sixth — 16% — of global gasoline exports originates in the U.S. This critical export provides Americans with jobs and eases the U.S. trade deficit. It also keeps other countries dependent on us — the kind of economic leverage President Trump is always talking about.

Trump’s new tariffs on Canadian and Mexican oil could raise U.S. refining costs, disrupt supply chains, and drive up fuel prices. Here’s how they impact energy markets.

The Canadian government would have to play a significant role in any project to build new oil pipelines in Canada to overcome regulatory, financial and political hurdles and activist opposition, industry experts said.