The six-month war between the United States and Iran moved back into the world’s most important oil corridor Wednesday, producing the largest wave of attacks on shipping since the conflict began.
Iran said it attacked 10 vessels near the Strait of Hormuz after the United States sank five Iranian oil tankers. Reuters reported at least one seafarer was killed and another remained missing following an attack involving the tanker Hercules Star.
Iran also launched ballistic missiles at a U.S. military base in Jordan. Jordan said 18 missiles were intercepted and two landed in unpopulated areas. A U.S. official said American troops were accounted for and no U.S. casualties were reported.
Those details describe statements available on September 9. Claims made during active conflict can change as governments, companies and rescue teams release additional information.
The Strait of Hormuz is narrow, but its economic importance is enormous. Tankers carrying oil and liquefied natural gas from Gulf producers must pass through the waterway before reaching global markets.
When ships are attacked, the effect begins before any physical shortage. Crews face immediate danger. Insurers raise rates, shipowners delay voyages and buyers bid up the price of available supply. Brent crude moved above $100 a barrel as the attacks unfolded.
Iran’s Revolutionary Guards threatened a stronger response to additional U.S. strikes and said the government would release a map of an expanded exclusion zone. An announced zone does not by itself establish control over the waterway, but it can increase uncertainty for commercial operators.
The United States has said its tanker strikes were retaliation for attacks threatening naval and commercial vessels. Iran describes its actions as resistance to U.S. military and economic pressure.
Those competing justifications do not change the risk to civilian mariners. Merchant crews may come from countries with no direct role in the war, yet they operate on ships that can become targets because of ownership, cargo, destination or mistaken identification.
The escalation will also reach consumers far from the Gulf. Sustained oil increases can raise gasoline, diesel, airfare, shipping and manufacturing costs. The size of that impact depends on how long traffic remains disrupted and whether producers can replace lost supply.
The greatest uncertainty is what comes next. A limited exchange could be followed by another uneasy pause. Further attacks could close routes, broaden military involvement and create more casualties.
The shipping lanes are again becoming the war’s pressure point. Protecting commercial crews and preventing miscalculation must now be treated as urgent diplomatic priorities—not secondary concerns behind the price of a barrel.
