Key Takeaways:
Iran's push to control shipping through the Strait of Hormuz faces its first diplomatic test as U.S. and Iranian negotiators prepare to meet in Doha on Tuesday.
WTI crude fell 0.8% to $70.19 a barrel in early Asian trade Monday as traders adjusted positions ahead of U.S.-Iran talks in Doha, though the session's losses were capped by mounting evidence that Tehran is moving to assert unilateral control over the Strait of Hormuz.
"There are reports that Iran is moving forward with plans to control maritime traffic through the strait, even without Oman," ANZ Research analysts said in a research note. "This is likely to delay the recovery of oil output from the Persian Gulf."
The meeting, confirmed by President Trump on social media Monday, follows four days of tit-for-tat strikes between U.S. and Iranian forces that threatened a nascent recovery in shipping through the waterway. Traffic through the strait had recently risen to its highest levels since the start of the war, according to Kpler data cited by the New York Times, before Iran's drone attack on the cargo vessel Ever Lovely on Thursday prompted the International Maritime Organization to halt an evacuation effort for hundreds of stranded ships.
The Strait of Hormuz handles about a fifth of the world's oil supply, giving Iran an outsized lever over global energy markets. If Tuesday's talks fail to produce a framework for safe passage, the risk premium embedded in crude prices could widen sharply. If they succeed, oil could sell off further on supply relief, with ANZ's warning that any Iranian control scheme would delay Persian Gulf output recovery acting as a floor under prices.
Iran's Leverage Play
Iran's push to formalize its control over the strait intensified after Oman and the International Maritime Organization established a joint safe route along the Omani coastline on June 23, bypassing the shipping lanes Tehran had designated. Iranian Deputy Foreign Affairs Minister Kazem Gharibabadi responded by declaring that safe passage "cannot rely on parallel routes" outside Iran's considerations as a coastal state. The Islamic Revolutionary Guard Corps Navy followed with a public warning demanding vessels coordinate with Iranian authorities, then attacked a Singapore-flagged cargo ship eight nautical miles southeast of Dahit, Oman.
The pattern mirrors Iran's strategy during the war, when limited strikes on commercial vessels proved it could disrupt global supply chains without triggering a full-scale conflict. "Whether the best-case scenario materializes or the worst-case scenario, they need this leverage," Ali Vaez, an Iran expert, told the New York Times. Tehran views control over the strait as its most powerful bargaining chip in negotiations with Washington, replacing the nuclear program that previously served as its primary deterrent.
The Diplomatic Calculus
The Trump administration has little appetite for a return to full-scale hostilities ahead of November's midterm elections, according to analysts. The preliminary peace agreement signed June 17 included a provision to reopen the strait, but subsequent attacks have eroded confidence. The U.S. and Gulf Cooperation Council ministers issued a joint statement on June 25 rejecting "any tolls, fees, or attempts to assert control over the strait" — a direct rebuke to Iran's position.
Iranian officials have responded with increasingly hostile rhetoric. An adviser to Supreme Leader Ali Khamenei called the Gulf states "peripheral minor players" who have "no seat at the table." Yet Iran's diplomatic efforts appear to be faltering: Oman and the IMO are collaborating on an alternative shipping route, and CENTCOM said it is providing safe passage coordination in the strait.
Market Implications
For oil markets, the Doha talks represent a binary event. A breakthrough that guarantees unrestricted passage could push WTI below $68, unwinding the geopolitical premium built since the war's escalation. A breakdown, or further Iranian attacks on commercial vessels, could send prices above $75 as traders price in supply disruption at the world's most important oil chokepoint.
The last time the strait faced a sustained disruption threat — during the 2019 tanker attacks — crude spiked about 15% within two weeks before stabilizing. The current situation carries greater systemic risk given the scale of military engagement between U.S. and Iranian forces.
This article is for informational purposes only and does not constitute investment advice.
