Brent Crude Plunges 10% as Iran Reopens Strait of Hormuz

Brent crude futures plunged more than 10 percent after Iran announced the Strait of Hormuz is “completely open” to commercial traffic, a significant de-escalation in Middle East tensions that reduces the geopolitical risk premium on oil. The move follows a newly brokered 10-day ceasefire between Israel and the Iran-backed militant group Hezbollah.

"From the shipping perspective, it is certainly promising, but it doesn't immediately give anybody enough clarity to make any firm decisions,” said Richard Meade, editor-in-chief of Lloyd’s List, cautioning that the industry needs more assurances to fully resume traffic.

The sharp drop in oil prices came swiftly after Iran's foreign minister, Abbas Araghchi, made the announcement on the social media platform X. The 10-day truce in Lebanon, which began at midnight local time, provides a window for commercial vessels to transit the vital waterway under a new set of Iranian-prescribed regulations.

The reopening, if it holds, could alleviate some of the inflationary pressures that have weighed on the global economy. However, the stability of the arrangement is fragile. An Iranian deputy foreign minister stated that a permanent end to hostilities is required for a lasting solution, and that Tehran would not accept another temporary cease-fire with the U.S.

Regional Reactions and Lingering Uncertainty

The announcement was met with a mix of official relief and industry skepticism. While President Trump posted a thank you to Iran on Truth Social, shipping analysts remain wary. The Iranian foreign minister's statement specified that passage was open for the "remaining period of ceasefire," linking the waterway's status directly to the fragile truce in Lebanon.

Yemen-based Houthi rebels, also backed by Iran, hailed the ceasefire as a “historic victory for Hezbollah,” claiming that mounting losses forced Israel to accept the terms. This rhetoric highlights the deep-seated regional conflicts that could easily resurface and once again threaten passage through the Strait, a chokepoint for about a fifth of the world's oil supply.

Iranian Deputy Foreign Minister Saeed Khatibzadeh stressed that a permanent end to conflicts from "Lebanon to the Red Sea" is a "red line" for Tehran. He also suggested new regulations for the Strait of Hormuz could be introduced if a lasting peace is achieved, indicating that Iran intends to maintain significant control over the waterway.

This article is for informational purposes only and does not constitute investment advice.