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Economy
Apr 18, 2026

Oil Prices Plunge as Iran Reopens Strait of Hormuz, But Tensions Remain

AI Summary
Oil prices have dropped to their lowest point in weeks after Iran announced that the Strait of Hormuz was open for passage during a ceasefire in Lebanon. However, tensions remain as Iran later warned that it would continue to block transit through the key waterway as long as the US blockade of Iranian ports remains in effect.

Oil prices have plummeted to their lowest point in weeks after Iran said the Strait of Hormuz was open for passage during a ceasefire in Lebanon. The international benchmark, Brent crude, fell more than 9 percent to $90.38 a barrel on Friday, taking it below $91 for the first time since March 10.

Iranian Foreign Minister Abbas Araghchi said the strait was “completely open” and would remain so for the duration of the 10-day ceasefire between Israel and Lebanon, which took effect on Friday. US President Donald Trump hailed Tehran’s announcement, declaring the waterway “ready for business and full passage.”

However, on Saturday, Iran rowed back on its decision to reopen the Strait of Hormuz, warning that it would continue to block transit through the key waterway as long as the US blockade of Iranian ports remained in effect. Trump said the blockade “will remain in full force” until Tehran reaches a deal with the US, including on its nuclear programme.

Roughly one-fifth of the world’s oil passes through Hormuz and further limits would squeeze already constrained supply, driving prices higher once again. Amid the escalation, Pakistani officials say they are trying for more talks between the US and Iran ahead of the April 22 ceasefire deadline.

Meanwhile, ship tracking data displayed a significant uptick in vessels crossing the strait on Saturday, with an analyst at maritime intelligence firm Windward saying it was the busiest since the Strait of Hormuz was effectively closed at the beginning of the war.