Geopolitics Oct 19, 2026 · 8 min read

Hormuz: mines enforce Iran’s permit system while its reopening offer stalls

Iran’s mines are a permit system, not a blockade that talks will lift soon. Iran’s Revolutionary Guards say three tankers have hit mines near Hormuz in two days, each on a route Iran had not authorised, with its tracking switched off. No one has independently confirmed this. Our view: Iran is using mines to make ships ask permission first. IMF PortWatch counted 2 transits on 11 October, against about 85 a day before the crisis. Iran’s reopening offer is still on the table, but Washington wants the nuclear issue dealt with first. Forwarders should keep Gulf cargo on the Fujairah, Khorfakkan and Jeddah landbridges (land there, truck the rest). Our call: no direct Gulf container calls through Hormuz before mid-December.

Iran is running Hormuz like a checkpoint, and its reopening offer is a price list, not a timetable
Iran says a third tanker in two days has hit a mine near the Strait of Hormuz. On Monday 19 October the Islamic Revolutionary Guard Corps (IRGC), the branch of Iran’s armed forces that runs its navy in the strait, said an oil tanker “struck a naval mine south of the Strait of Hormuz”. The blast started a fire in the engine room, AFP reported via Al Arabiya.
That came a day after the IRGC said two other tankers had hit mines and caught fire. Iranian state media said each was carrying about two million barrels of crude. China’s CGTN reported that one of them stopped moving after the explosion.
None of this has been confirmed by anyone outside Iran. None of the reports names a ship. Reuters, in its report carried by Baird Maritime, put it simply: “There was no independent confirmation of the reports.” The straits.live status tracker notes that no maritime authority has confirmed the mine claims either. Read every number from Tehran in that light.

What we think is going on

Our view: these mines are not a blockade. They are a permit system with teeth.
Iran is not trying to sink everything that moves. It is trying to make every ship ask first. The ships it says were hit all share two things. They were on what the IRGC calls an unauthorised route, and they had their tracking switched off. The message to owners is plain. Sail the lane Iran approves, stay visible, and ask permission. Do anything else and you risk a mine.
That matters more to forwarders than any single explosion. A blockade can end with one announcement. A permit system can run for months, because each ship that gives in makes it stronger. It also means “Is Hormuz open?” is the wrong question. The right one is: open to whom, and on whose terms?

The evidence behind that view

Start with Iran’s own words. According to AFP, the IRGC said Monday’s tanker was “in violation”. It said the ship was on the strait’s “unauthorized southern route” and had disabled its positioning and navigation systems. Those are the systems that broadcast a ship’s identity and position to everyone else. Switching them off is called “going dark”.
Iran has told ships what to expect. AFP reports that Tehran requires all ships to seek its authorisation before transiting. The IRGC’s naval commander, Admiral Ali Ozmaei, has warned that any vessel deactivating its navigation systems would be considered “hostile”. The weekend’s reports used the same language. CGTN said the second tanker had switched off its GPS and radar and was using an “illegal” route. CGTN also said the IRGC described the strait as closed and warned ships against defying Iranian regulations.
The traffic numbers show that almost nobody is willing to take the risk, with or without a permit. IMF PortWatch, which counts ship transits from satellite tracking data, logged 2 transits on 11 October. Before the crisis the baseline was 85 a day. Those figures are as reported by the straits.live tracker.
The danger is not only from mines. Reuters, via Baird Maritime, reported that maritime officials said last Wednesday that a container ship and a dry bulk carrier sank near the strait after being hit by projectiles in separate incidents. Reuters also said attacks have surged over the past two weeks. Iran says it is escalating because of the US blockade of its ports and the sanctions imposed last month.
The market has noticed. Brent crude settled at $109.86 a barrel, up 3.72%, in the latest session covered by straits.live’s 18 October brief. CGTN quoted Chinese analyst Qin Tian as saying attacks on merchant ships rose sharply from late September to early October. He said this pushed tanker freight rates to record highs and raised insurance costs.

The reopening offer is a list of demands

Iran says there is a way out. On Sunday Foreign Minister Abbas Araghchi said Iran’s offer from mid-September, made after a temporary ceasefire collapsed, still stands. “Our position is clear and based on the seven-day proposal presented to the United States,” he said, as reported by Reuters via Arab News.
He added that if Washington accepted Tehran’s conditions, the strait would open within six days, with talks resuming the next day. Those conditions include lifting the American blockade of Iranian ports, cancelling US sanctions on Iranian oil exports, and ending hostilities on all fronts in the region. Iran’s Supreme National Security Council secretary said last week that talks had stalled because the US had not answered all seven of Iran’s conditions.
Araghchi said Iran had received US “observations” and was reviewing them. He did not sound hopeful. He said the path to opening the strait was clear “if there is any integrity on the American side, which there is not.”
The gap is large. Reuters reports that Washington wants Iran’s nuclear programme on the table from the start. Vice President JD Vance said earlier this month that Iran must make a “tangible” cut to its uranium enrichment capability. Tehran says the first phase should cover only the strait and its security.
Our reading: this is not a timetable. It is a price list. The seven-day figure only starts once the US agrees to things it has so far refused. It also leaves untouched the question of who decides which ships may pass. Even on Iran’s best case, a deal signed tomorrow means about a week before opening, and then shipowners and insurers would have to trust it.

What happened last time Iran mined these waters

There is a precedent, and it is not a quick one. On 24 July 1987, during the Iran-Iraq war, the supertanker Bridgeton hit a mine in the Gulf. It was in the first convoy of Operation Earnest Will, the US effort to escort Kuwaiti tankers. The ship survived. Its double hull kept it afloat, and it finished its voyage.
But the effect was large. Defense One reported in April that later convoys were delayed while the US Navy rushed in minesweeping helicopters and ships. Iran’s mine campaign was halted only by the end of that year. In April 1988 the US frigate Samuel B. Roberts hit a mine anyway. Repairs took 18 months and cost $90 million. Defense One estimates the mine cost about a thousand dollars. “Painfully, history is repeating itself,” wrote Bradley Peniston, its executive editor. He noted that the US Navy shipped its last four Avenger minehunters out of the region weeks before Iran began laying mines this year.
Our takeaway from 1987: mines are cheap to lay and slow to clear. Even after a political deal, minehunting and insurer confidence would take weeks, not days.

What this means for forwarders

First, treat the landbridge as the plan, not the backup. A landbridge means landing cargo at a port outside the danger zone and trucking it the rest of the way. Since late July, Hapag-Lloyd has taken Upper Gulf bookings via Fujairah and Khorfakkan, on the UAE’s east coast outside the strait, according to Container News. Cargo for Kuwait, Iraq, Qatar and Bahrain then moves overland to Jebel Ali or Sharjah and onto intra-Gulf feeders, the small ships that shuttle boxes between ports. Bonded trucking from Fujairah or Khorfakkan to Jebel Ali or Sharjah takes about five days. Bonded means the goods move under customs control without duties being paid yet. Cargo for Dammam and Jubail in Saudi Arabia goes via Jeddah on the Red Sea. Those feeders have no fixed weekly schedule, so build slack into every quote.
Second, expect insurance costs to stay high. Insurance Business reported in September that war-risk premiums for Hormuz transits were about 0.15% to 0.25% of a ship’s hull value before the war. A war-risk premium is the extra cover charged to sail through a conflict zone. After the first US and Israeli strikes, Marsh’s global head of marine, Marcus Baker, put the range at 3% to 10%, the same report said. Mines and sinkings will not bring those numbers down. Carriers pass the cost on through surcharges.
Third, the tanker attacks reach container freight too. Brent near $110 feeds into bunker fuel prices, and bunker surcharges follow. Reefer and project cargo for the Gulf, which have the least room for delay, will feel the five-day trucking legs most.
Fourth, tell customers the truth about timing. The only diplomatic path on offer needs the US to drop positions it holds today. Then it needs about a week to open, and then insurers and carriers need proof the mines are gone. None of that fits inside Q4 shipping plans.

Our call

Our prediction: no major container line restores direct calls at ports inside the Gulf through Hormuz before mid-December 2026. Fujairah, Khorfakkan and Jeddah landbridge routings stay the main way into the Upper Gulf until at least the end of the year. If a deal is announced before then, we expect the first container ships to wait for confirmed mine clearance and lower war-risk quotes, not for the date Iran sets.

Sources