US blockade reroutes 44 ships as Iran-US peace talks stall

US naval forces have rerouted 44 commercial vessels bound for Iranian ports as of Aug 3, deepening a blockade that threatens the oil lifeline of the Strait of Hormuz.

US forces have rerouted 44 commercial vessels bound for Iranian ports as of Aug 3, deepening a naval blockade that threatens the Strait of Hormuz's oil flows even as Tehran presses Washington to honor a June peace accord.

"We must strive to compel the enemy to adhere to what it has signed," Iranian President Masoud Pezeshkian said Sunday, adding that the security of the country, the region and its allies would improve with the memorandum of understanding (MoU).

US Central Command said it had disabled two ships and boarded two others during the operations, up from 35 vessels redirected as of Aug 2. The blockade, resumed July 14, targets vessels traveling to and from Iranian ports in response to Iranian attacks on ships transiting Hormuz.

The Strait of Hormuz handles about 21 percent of global oil trade, making the standoff a direct threat to crude supply chains, shipping insurance and energy prices across Asia and Europe.

The escalation follows a rapid breakdown in the June 18 accord, under which Washington and Tehran were scheduled to hold negotiations within a 60-day window to reach a final agreement. That timeline now hangs in the balance after the US military launched multiple waves of strikes against Iranian targets last month, saying they were aimed at "degrading Iran's ability to threaten commercial shipping." Iran responded with missile and drone attacks on US military bases and facilities in the region.

Pezeshkian said there is a consensus among members of Iran's Supreme National Security Council on the MoU, and that he expects it to become the focal point of the country's foreign relations. His remarks suggest Tehran still sees a diplomatic off-ramp even as the military standoff intensifies.

Blockade's bite on oil and shipping

Each rerouted tanker adds days to voyage times and pushes up freight and insurance premiums for cargoes transiting the Gulf. The last time the waterway came under comparable threat, during the 2019 tanker attacks and the 2020 US-Iran confrontation, crude prices swung sharply as traders priced in the risk of a full closure. A sustained blockade now would force refiners in Asia, which rely heavily on Gulf crude, to source barrels from farther afield at higher cost.

The standoff also complicates the 60-day negotiation window set under the MoU. If talks collapse, the US blockade could tighten further, while Iran has shown it can retaliate against US assets in the region. If the two sides return to the table, the rerouting of vessels could ease as quickly as it began.

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