Ground Truth · Shipping · middle-east-africa

Traffic through Hormuz rises despite reports of mines striking tankers

Energy importers and shipowners face reported attacks along a route that ships continue to use.

A view from space shows the Strait of Hormuz and surrounding land and sea, with part of a spacecraft visible in the foreground.
Photo: NASA JSC · public domain · NASA · public domain (NASA)

Al Jazeera reported on Nov. 5 that the IRGC told the Fars news agency a tanker had struck a mine, caught fire and stopped.

Middle East Eye reported that combined Strait of Hormuz traffic rose in its seven-day reporting period from the previous week. That count shows ships continued to use the route; it does not settle whether passage was formally closed at another time.

Iran’s army described a mine strike, not a routine safety warning. In a Nov. 5 report, Al Jazeera quoted the army as saying a “violating oil tanker” caught fire and stopped after striking a naval mine east of the Strait of Hormuz. The same report quoted another army statement saying two more oil tankers struck mines and caught fire in the unsafe waters east of the strait.

What moved

Against what is normal

Every level the sources print, with what it is measured against. Tap a row for the sentence it comes from.

MeasureNowAgainstChangeSize of move

Bars: change against the stated level, square-root scale. CALC: worked out from two printed figures. Sources: ARCANE.

Calling waters unsafe gives shipowners, charterers and insurers a reason to weigh the risks of passage. The army’s statements report a hazard near a route where around 80 percent of transits continued to involve energy carriers.

Middle East Eye reported that UKMTO recorded attacks on commercial shipping in the Strait of Hormuz and Arabian Gulf during the seven days to November 4, including incidents that left vessels sunk. The reported attacks and continuing traffic describe risks along a route ships were still using; they do not establish the terms of passage for every cargo.

The broader monthly record points the same way. According to data from the UK Maritime Trade Operations Center, October saw the highest monthly number of attacks in the Strait of Hormuz since the war began, with more than 35 incidents. The report also said increasing attacks coincided with signs of recovery in shipping through Hormuz: violence and recovery can coexist.

The route count puts the collapse more bluntly: “Hormuz −96% 3.3 transits a day from Oct 19, 2026 to Oct 25, 2026, against a normal of 86.4.” That ARCANE line is the garden ingredient no official statement supplies, because it sets the scale of the avoidance against a normal day rather than against a week already distorted by war.

ARCANE recorded sharply reduced Hormuz traffic in its October window. Middle East Eye reported a higher combined count for a later seven-day reporting period. The windows and measures differ, so those figures alone cannot establish how steadily traffic recovered.

Crew risk is no abstraction. A report dated Nov. 5 described “Appalling conditions, unpaid wages and the constant threat of attack” and said thousands of sailors are stranded in the Strait of Hormuz as the US-Iran conflict disrupts shipping routes and experts warn of risks to global trade. That puts a human bottleneck beside the physical one: ships need crews willing and able to move before cargo can move.

The Energy Trade Is the Exposed Trade

The International Energy Agency said the Strait of Hormuz handled an average of 20 million barrels of crude oil and petroleum products daily in 2025, representing about a quarter of global seaborne oil trade. Another report described the route as carrying 20 per cent of the world’s energy supplies.

That concentration changes the bargaining around every transit. A bulk carrier can sometimes wait for clearer instructions; an oil or gas cargo tied to refinery runs, power demand or storage levels puts pressure on buyers to secure the shipment or find a substitute. Energy carriers still account for most ships passing through, and their cargoes give them a strong reason to keep trying.

India shows how that exposure reaches gas buyers. A report published on Nov. 7 said India imports roughly half of the natural gas it consumes, and the Strait of Hormuz has been a major transit route for those imports. Delays or diversions could affect the cost and reliability of delivered gas.

For a household, the risk travels through fuel, power and inflation rather than through the name of the chokepoint. Retail tariffs are not established here, so the fair claim is narrower: when a country that imports roughly half of the natural gas it consumes depends on a route where tankers are reported striking mines, delivered energy is exposed to route risk before it reaches a bill.

For institutions, the same facts point to hedging, financing and the risk that another party cannot meet its obligations. Shipowners must judge whether a voyage earns enough to cover delay, insurance, crew demands and the chance of damage. Lenders and commodity traders must judge whether cargoes arrive when contracts expect them to arrive. Attacks and continuing transits put those decisions on the same route.

The diversion record shows the pressure is not confined to Hormuz. ARCANE recorded the Cape of Good Hope at 87.1 transits a day from Oct 19, 2026 to Oct 25, 2026, against a normal of 46.2, while Bab el-Mandeb was at 28.9 against a normal of 63.5. The route system was absorbing stress unevenly, with one long-way-round corridor above normal while another nearby chokepoint was far below it.

Key figures
  1. 3.3Hormuz transits a dayagainst a normal of 86.4
  2. 87.1Cape of Good Hope transits a dayagainst a normal of 46.2
  3. 28.9Bab el-Mandeb transits a dayagainst a normal of 63.5
Source: ARCANE, Nov. 6, 2026

Other chokepoints were weaker without matching Hormuz’s collapse. ARCANE put Suez at 41.3 transits a day from Oct 19, 2026 to Oct 25, 2026, against a normal of 63.8, and Gibraltar at 116.4 against a normal of 134.2. Those numbers fit a shipping system under strain rather than a single-lane problem that can be solved by moving every vessel to the next obvious route.

The contrast with Malacca cuts against a simple global slowdown reading. ARCANE put Malacca at 228.0 transits a day from Oct 19, 2026 to Oct 25, 2026, against a normal of 182.1, while the Taiwan Strait was at 190.0 against a normal of 246.5. Traffic was not falling everywhere at once.

The same screen put the Bosphorus at 53.7 transits a day from Oct 19, 2026 to Oct 25, 2026, against a normal of 102.9, the Danish straits at 42.9 against 50.6, and Panama at 28.7 against 33.5. The common thread is not that every lane moved the same way. It is that chokepoints became decisions rather than background plumbing.

The Recovery Case Has Evidence

Combined Strait of Hormuz traffic reached 325 transits in the seven-day reporting period, compared with 277 in the previous week. A report also said increasing attacks coincided with signs of recovery in shipping through Hormuz. The weekly total contrasts with the much lower daily count ARCANE recorded from Oct 19 to Oct 25.

Middle East Eye reported that combined traffic rose from the previous week even as UKMTO recorded attacks on commercial shipping. The next combined count can show whether that rise continued; it cannot, by itself, explain why ships made the passage.

Modern Tokyo Times reported that additional assets give South Korea the capacity to prepare for potential future mine-clearing operations, should conditions permit international cooperation to restore freedom of navigation through the Strait of Hormuz. That stated capacity does not establish when traffic will recover.

Al Jazeera reported the IRGC’s and the army’s statements about tankers striking mines. Middle East Eye separately reported that UKMTO recorded attacks on commercial shipping. Those accounts identify reported dangers on the route, but do not establish why any particular ship changed its plans.

RFE/RL reported on Nov. 7 that a statement cited the International Atomic Energy Agency’s earlier account of Iran’s uranium enrichment. That account says nothing about whether a ship can pass through Hormuz. The reported mine strikes and traffic counts provide the narrower evidence for assessing passage.

The strongest caution is that attack reports are not the same as completed disruption. The seven-day traffic count already rose from the previous week, and energy ships are still moving. The market may be adapting faster than the worst route screens imply. That would make the ARCANE collapse a trough, not the new baseline.

The caution has a limit. A route carrying a large share of seaborne oil does not need to close to affect deliveries. A small chance of a mine strike can alter insurance, crew pay, timing and fuel use across many cargoes. The loss lands first on the party that must deliver on time and lacks an easy substitute route.

Mine-Clearing Is the Public Test

The next combined Strait of Hormuz traffic count can show whether the reported rise continues or stalls. Middle East Eye also reported UKMTO’s attack count, but traffic alone cannot show whether the danger to ships has changed. South Korea’s reported capacity to prepare for potential mine-clearing operations cannot settle that question either.

That test also separates who pays from who talks. In a Nov. 5 report, Al Jazeera quoted Iran’s army describing a tanker as violating an unsafe area. Shipowners must decide whether the voyage pays enough, crews whether the risk is bearable, and buyers whether delay is tolerable. The International Energy Agency’s estimate, reported by Business Insider Africa, of the route’s daily oil shipments shows why those private choices can affect energy supplies.

If the count keeps recovering, the winner is not a country so much as the side of the trade that can keep cargoes moving without paying a lasting reroute tax. Energy buyers would face less delivery risk, and shipowners with safe passage would earn revenue rather than sit idle. If the count breaks lower, leverage shifts toward substitute routes, available storage and any carrier willing to accept the danger.

The next public seven-day combined traffic count will show whether the reported rise continues. A flat or lower count would interrupt it; a higher count would extend it. Neither result alone establishes what caused ships to change course.

Reported mine strikes and attacks remain alongside evidence that ships are passing through Hormuz. The next combined traffic count will show whether the recent rise in passage continues, not whether the reported danger has ended.