Oil tankers have been stuck in the Strait of Hormuz for months, but a tentative peace deal between the US and Iran could finally get them moving again. The narrow waterway, a crucial chokepoint for global energy supplies, was effectively closed to commercial shipping from late February after the conflict between Washington, Israel and Tehran escalated. Now, with a framework agreement announced by US President Donald Trump, the question is not just whether oil will flow, but when — and at what cost to consumers in the UK.
At its simplest, the Strait of Hormuz is a 21-mile-wide channel between Iran and Oman that connects the Persian Gulf to the open ocean. About a fifth of the world's oil and a third of its liquefied natural gas pass through it, making it one of the most strategically important waterways on Earth. When conflict closed the strait to most commercial vessels, global oil prices soared because supplies were suddenly cut off. The deal, which Trump heralded with a social media post saying "Let the oil flow!" and later claimed ships were "loaded up with oil, out of the Strait of Hormuz," is intended to reopen the route. But shipping data from MarineTraffic shows that as of the announcement, only two vessels with active trackers had exited the waterway since Sunday — a bulk carrier and a tanker — suggesting a full recovery is far from immediate.
“Explains the US-Iran deal, its impact on oil prices via the Strait of Hormuz, and what it means for UK consumers.”
The background to this disruption lies in the US-led war with Iran, which began more than three months before the deal. The conflict effectively shut the strait to all but ships friendly to Iran, leaving hundreds of vessels stranded in the Gulf. Risks from sea mines and drone strikes made passage dangerous, and insurance costs for crews and ships skyrocketed. Even though a ceasefire preceded the agreement, shipping companies remained reluctant to move their vessels. Denmark's Maersk, the world's second-largest shipping line, said it was too early to assess how the deal would affect logistics, and German carrier Hapag-Lloyd, which has four ships stuck, hoped to get them out over the weekend after the deal is signed and any remaining mines are cleared. Experts like Neil Shearing, group chief economist at Capital Economics, warned that even if ships now have safe passage, tankers are in the wrong place, oil production and refining facilities need to ramp up, and questions over insurance will persist. He added: "It will take some time for oil flows through the Strait to return to pre-war levels."
For UK readers, the practical impact is felt at the petrol pump and in the cost of everyday goods. Higher oil prices drive up fuel costs, but they also feed into the price of food and other commodities because shipping rates rise when routes are disrupted and longer alternative routes must be used. The Bank of England and other forecasters had already warned that persistent energy price shocks could keep inflation higher for longer. A speedy return to normal shipping through Hormuz could ease those pressures, but a fragile truce that collapses would send prices spiking again. Moreover, uncertainty itself is costly: businesses delay investment, and households face higher bills with little warning.
Q: Why is the Strait of Hormuz so important for global oil supplies? About one-fifth of the world's oil and one-third of liquefied natural gas pass through the Strait of Hormuz. If the waterway is blocked, tankers cannot deliver crude from major producers like Saudi Arabia, Iraq and the UAE to global markets, which pushes up prices everywhere.
Q: How does the US-Iran deal affect UK households? If the deal holds and oil flows resume, petrol prices could stabilise or fall, easing the cost of driving and heating. But if the disruption continues, energy costs stay high, which filters into higher prices for food, transport and goods due to increased shipping expenses.
Q: What could still go wrong with the deal? The agreement is a framework, not a final settlement. Shipping companies are cautious because mines may still be in the water, insurance is expensive, and tankers are not positioned to resume normal operations immediately. If hostilities restart, the strait could close again, causing fresh price spikes.
What happens next depends on whether the ceasefire becomes a durable settlement. Hapag-Lloyd hopes to move its stuck ships once the deal is signed and mines cleared. But economists like Neil Shearing caution that it could take months for oil flows to return to pre-war levels. The coming days will test whether the promise of "safe, secure and pristine" waters matches the reality for the world's oil tankers.