Hormuz Is Disrupted. That Is Not the Same as Closed.

Closure claim, partial disruption

Iran says the Strait of Hormuz is closed. The U.S. says it remains open. The measurable evidence sits between those claims.

After renewed U.S.-Iranian strikes over the weekend, Tehran again described the strait as closed, while Washington said commercial traffic could still move, according to Reuters and the Associated Press. That distinction matters. A chokepoint can be economically damaged without being hermetically sealed.

Kpler data cited by Reuters via Arab News showed only six vessels transited Hormuz on Sunday, July 12, the lowest count in five weeks. No visible LNG tankers entered over the weekend. Many tankers also switched off AIS transponders while crossing, so visible tracking may undercount actual movement. But the pattern still confirms abnormal conditions.

This is not normal commerce. It is also not proof that Iran has imposed a clean, enforceable blockade. Ships are still moving, including tankers carrying Iranian crude and Kuwaiti products. The more accurate read is that Iran is degrading traffic, raising risk, and testing how much disruption it can create without full closure.

The market is pricing stress, not panic

Oil rose, but not in a 1970s-style panic. Reuters put Brent near $78.50 on July 13, with WTI around $73. Those are serious prices for consumers and central banks, but they do not imply that traders believe a durable zero-flow blockade is already in place.

The scale of the chokepoint explains why markets cannot ignore it. The International Energy Agency says about 20 million barrels per day of crude and oil products moved through Hormuz in 2025, roughly a quarter of global seaborne oil trade. It also says Qatar and UAE LNG exports through the strait account for about 19% of global LNG trade.

Crude has some buffers. The IEA estimates 3.5 million to 5.5 million barrels per day of crude export capacity could bypass Hormuz through Saudi and UAE routes, though EIA analysis has put available bypass capacity lower at times. The U.S. also has more domestic supply than in past oil shocks: EIA weekly data for the week ending July 3 showed U.S. crude production at 13.860 million barrels per day, commercial crude stocks at 411.357 million barrels, and the Strategic Petroleum Reserve at 319.489 million barrels.

Those buffers reduce vulnerability. They do not erase it. LNG is more exposed than crude because Qatar has fewer practical alternatives. A prolonged interruption would hit Asian buyers hardest and feed into power, heating, industrial input, shipping, and fertilizer costs.

Insurance is part of the chokepoint

The story is not only missiles and naval escorts. It is also insurance, crew risk, AIS behavior, and delays.

Reuters reported via Insurance Journal that some war underwriters advised shipowners to pause Hormuz voyages after attacks. War-risk rates for ships inside the Gulf had moved toward 3% of vessel value from 2% the prior week, with some cover potentially costing at least 5%.

That can function like a partial closure even when waterway access is not physically blocked. Higher premiums, unavailable cover, crew refusals, convoy waits, and route changes all reduce throughput or raise delivered energy costs. Earlier Reuters reporting via Investing.com said four oil and gas tankers turned back from attempted Hormuz transits after attacks, including three QatarEnergy-controlled LNG tankers and an Indian-flagged crude tanker.

This is the practical risk: not a single binary event called “closure,” but a rolling tax on movement through the Gulf.

Resilience is real, but conditional

The crisis is best understood as a test of energy resilience. Naval coordination, southern-route support near Oman, strategic stocks, U.S. shale output, alternative pipelines, and demand response all limit Iran’s coercive leverage. That is why the first market response has been stress rather than panic.

But resilience depends on duration. Emergency stocks are finite. Bypass capacity is partial. LNG rerouting options are limited. Insurance costs can compound quickly. If Iran can repeatedly slow traffic without paying prohibitive costs, Hormuz risk becomes a recurring surcharge on global energy trade.

The weak framing is either “Iran closed Hormuz and the global economy is hostage” or “some ships moved, so nothing happened.” The facts support neither. Hormuz is open enough to prevent immediate collapse and disrupted enough to matter for inflation, shipping, LNG security, and U.S.-Iran bargaining.