• About 60 commercial vessels crossed the Strait of Hormuz on Wednesday, the highest daily crude volume since early July, according to a U.S. defense official.
  • The uptick follows a period of severely restricted traffic due to U.S.-Iran tensions, but data discrepancies and security risks persist.
  • Analysts caution that the rebound is not yet a stable reopening; oil markets remain sensitive to any disruption.

A Welcome Respite

Roughly 60 commercial vessels transited the Strait of Hormuz on Wednesday, carrying the highest daily volume of crude since early July, a U.S. defense official told Reuters. The figure marks a notable, though still incomplete, recovery in activity through the world’s most critical energy chokepoint, which has been heavily disrupted by the U.S.-Iran conflict.

U.S. military officials said recently that oil and LNG shipments over the prior two weeks had reached a six-month high, crediting naval protection and mine-clearance work. U.S. forces have reportedly assisted more than 2,000 commercial transits. The rebound comes after much lower activity earlier in September: Reuters reported seven crossings on September 10 and only two on September 21. Before the conflict began, the strait typically handled about 125 large commercial vessels per day.

Data Discrepancies and Cautious Optimism

The reported 60 vessel transits should be treated cautiously because maritime counts differ depending on whether vessels transmit tracking signals and which data methodology is used. U.S. officials have at times cited much higher crude-throughput figures than Kpler, a commercial ship-tracking firm. Kpler estimated average August crude flows at about 4.3 million barrels per day and nearly 5 million bpd in the first six days of September.

The Strait of Hormuz is a central global energy chokepoint, having handled roughly one-fifth of daily world crude and LNG supply before the 2026 conflict. Even a partial recovery in ship movements can materially affect oil availability, freight costs, refinery planning, and energy-price risk. More transits can ease the immediate risk of Gulf crude being stranded, especially supplies from Saudi Arabia, Iraq, Kuwait, the UAE, and Qatar. However, the route remains far below its former operating level, so global supply remains exposed to renewed interruptions.

Market and Security Challenges

Markets have struggled to price the disruption because official military claims and commercial tracking data diverge. That uncertainty itself can support a geopolitical risk premium in crude prices and make energy trading more volatile. Saudi Arabia has increased crude and condensate shipments via Yanbu on the Red Sea, a bypass route that avoids Hormuz; Reuters reported September loadings near 3.7 million bpd, up from 3.2 million bpd in August. These alternatives provide partial relief but cannot fully replace Hormuz capacity.

Elevated war-risk insurance, security requirements, rerouting, delays, and the possibility of switching off AIS tracking systems all raise operating costs for shipowners and cargo buyers. The UN has reported that insurance costs surged and traffic fell sharply during the crisis. The crisis followed U.S. and Israeli military operations against Iran beginning in late February, after which Iran retaliated through threats and attacks involving commercial shipping. Congressional research describes Iran’s subsequent efforts to assert control over the Strait, including the establishment of a “Persian Gulf Strait Authority” and claimed permit requirements.

The United States has responded with naval protection, convoy-like coordination, and a blockade targeting Iran-related shipping. A Reuters report in July said more than 100 vessels had coordinated directly with the U.S. military over a seven-day period, though traffic was still below prewar levels. Security remains acute: several commercial vessels were attacked in July, including crude tankers, an LNG carrier, and a container vessel. The U.S. Navy-led Joint Maritime Information Center raised the transit threat rating to “severe” following attacks.

Diplomatic Stalemate

Diplomatically, the core dispute is whether passage should remain governed by international transit-passage principles or whether Iran can impose permits, fees, route control, or effective veto power. Analysts argue that normal recovery would require a durable arrangement preserving unrestricted transit and the recognized IMO routing system. The UN reported that renewed conflict left about 6,000 seafarers stranded on hundreds of ships in early July; earlier in the crisis, it cited far larger numbers of stranded personnel across the Gulf.

Higher energy, transport, fertilizer, and insurance costs can pass through to households and manufacturers globally. Countries highly dependent on imported Gulf oil or LNG are particularly vulnerable. Gulf exporters can earn more when oil prices rise, but they lose physical export capacity when tankers cannot sail safely. The result is a difficult tradeoff between higher benchmark prices and constrained sales volumes. Shipping companies and insurers must decide whether expected freight revenue compensates for war-risk premiums, security costs, crew-safety risks, and the possibility of vessel damage or detention.

Fragile Prospects

Hormuz has long been viewed as one of the world’s most sensitive maritime choke points because it connects Persian Gulf exporters to global markets. Previous Iran-related confrontations—including the 1980s “Tanker War” and periodic seizures or harassment of vessels—demonstrated its vulnerability, but the present disruption is unusually extensive. Before the current war, the strait commonly handled about 125 large commercial ships daily. During the conflict, traffic has repeatedly dropped into single digits; Reuters reported only three commodity-vessel crossings on July 17 and two on September 22. A Council on Foreign Relations analysis characterized the broader disruption as a historically exceptional energy supply shock, involving more than 10 million barrels per day of shut-in oil-equivalent supply and major LNG losses over an extended period.

Near term, the 60-vessel day is encouraging for physical supply, but it does not establish a stable reopening. The immediate trajectory depends on whether U.S. protection and clearance efforts can continue, whether Iran refrains from further attacks, and whether insurers and shipowners judge the transit risk tolerable. Long term, even if traffic recovers, the crisis is likely to accelerate structural changes: Gulf exporters may invest further in pipelines, Red Sea ports, storage, and other routes that bypass Hormuz. Importing countries may place greater emphasis on strategic petroleum reserves, diversified suppliers, LNG flexibility, and demand reduction. Shipping markets may sustain higher risk premiums and more security-focused routing for an extended period. Any political settlement will likely need to address navigational access, Iranian security concerns, U.S. naval presence, mine-clearance responsibilities, and the legal status of transit passage.

The key caution is that a higher number of crossings does not necessarily mean flows have normalized. The most credible interpretation is a fragile operational improvement: more crude is moving, but the route remains militarized, data remains opaque, and a new attack could reverse the progress quickly.