• President Donald Trump has publicly opposed any Iranian attempt to impose tolls on vessels transiting the Strait of Hormuz, escalating tensions over the critical oil chokepoint.
  • Washington signals potential measures to ensure freedom of navigation, with global energy markets on alert for supply disruptions.
  • The standoff raises risks for shipping costs, oil prices, and regional stability, as diplomatic and military posturing intensifies.

The Strait of Hormuz, a vital artery for about 20% of the world's oil supply, has become the latest flashpoint in U.S.-Iran tensions. President Trump stated on Tuesday that Iran “should not be allowed to put tolls on the Strait of Hormuz,” vowing that the U.S. would take action to keep the waterway open. The remark, delivered during a press conference, underscores Washington’s commitment to countering what it views as unlawful interference with international waters.

Iran has recently asserted its territorial authority over the strait, floating the idea of imposing fees on commercial vessels—a move that would effectively tax global energy trade. According to people familiar with the matter, Tehran’s demands are linked to broader regional conflicts, though no formal toll system has been enacted. The U.S. has beefed up naval patrols in the Gulf, signaling a readiness to escort ships if necessary.

Market response was swift. Benchmark Brent crude rose 1.2% to $94.50 a barrel on Wednesday, as traders priced in a heightened risk premium. “Any disruption at Hormuz would cause an immediate spike in oil prices,” said an analyst at a major energy consultancy, who asked not to be named. Shipping insurers have already begun raising premiums for vessels transiting the Gulf, according to industry sources.

The international community has largely backed the principle of free navigation. A spokesperson for the European Union called for restraint, while Gulf states have privately urged de-escalation. “No single country should hold global energy hostage,” said a senior diplomat in the region.

Without a deal, the situation could spiral into a full-blown crisis. In a worst-case scenario, Iran could attempt to block the strait entirely, a move that would trigger a supply shock reminiscent of the 1973 oil embargo. For now, the focus remains on diplomatic channels, though Trump’s comments suggest a willingness to use force if needed.

Attempts to reach Iran’s mission to the United Nations for comment were unsuccessful.

Correction: An earlier version of this article misstated the date of Trump’s remarks. They were made Tuesday, not Wednesday.