At 07:45 GMT, a convoy of oil tankers stretched 12 kilometres through the Strait of Hormuz, their hulls glittering in the early light. The same waterway that ferries roughly 21 million barrels of oil each day became the backdrop for a decisive G7 statement on the new US‑Iran agreement.
The G7 – Canada, France, Germany, Italy, Japan, the United Kingdom and the United States – released a joint communiqué on Thursday, saying they “support the United States‑Iran nuclear agreement” and “call for free navigation and safe passage” in the Hormuz corridor.
Why does this matter?
Hormuz is a chokepoint: any disruption instantly ripples through gasoline prices at the pump, freight costs for manufacturers and the cost of food imports worldwide. By backing the US‑Iran deal, the G7 signals to Tehran and Tehran‑linked militias that the West will not tolerate threats to that lifeline.
What is the US‑Iran agreement?
The deal, announced in late March, limits Iran’s uranium enrichment to 3.67% and expands inspections by the International Atomic Energy Agency. In return, the United States lifts a set of secondary sanctions that have crippled Iran’s ability to sell oil and finance infrastructure.
Washington estimates the pact could unlock up to $6 billion in Iranian oil revenue per month, while Tehran promises to keep its enrichment programme below breakout thresholds for at least a decade.
Who will feel the impact?
Ship owners, oil traders, and the economy and markets community watch Hormuz closely. A 5% rise in freight rates caused by perceived risk in the strait would add roughly $2 billion to global shipping costs annually.
Consumers in Europe and Asia could see gasoline prices shift by up to $0.15 per litre, according to analysts at the International Energy Agency.
G7’s diplomatic levers
French Foreign Minister Stéphane Séjourné, speaking at the G7 foreign ministers’ meeting in Capri, said, “Free navigation in Hormuz is not a privilege, it is a principle of international law.” The United Kingdom’s Foreign Office echoed the sentiment, warning that any attempt to block vessels would be “met with a coordinated response”.
The statement did not name Iran directly, but the language mirrors previous G7 alerts after Iranian-backed attacks on commercial shipping in 2022 and 2023.
What happens next?
Iran’s Revolutionary Guard Corps has not yet commented. Observers expect a diplomatic push in the coming weeks: the United Nations’ Security Council may convene a special session, and the United States is likely to dispatch an additional naval patrol to the strait.
For now, the G7’s endorsement of the US‑Iran agreement and its demand for free navigation keep a tentative calm over a waterway that has been a flashpoint for decades. Whether that calm holds will depend on Tehran’s willingness to honor the nuclear constraints and on the G7’s resolve to enforce the navigation guarantee.
Stay tuned as the world watches whether the G7’s promise translates into on‑the‑ground security, or whether the next tanker will be caught in a geopolitical crossfire.