Tanker war-risk insurance in Hormuz raised to five percent per crossing

The premium that lets a tanker cross Hormuz fell to two percent after June's US-Iran deal, then climbed straight back to around five percent of the ship's value for a single transit, which brokers now call the new market norm, according to The Ops Con on July 14.

More than a hundred ships have crossed since August 1 all the same, hauling crude, LPG and LNG, and Kpler transit data cited by Al Jazeera on August 20 confirms this. A ship does not need to be sunk to be taken off the water; it needs a premium nobody will pay.

Hull war-risk cover is priced per crossing, not per year, and that is the whole story. The cover is quoted voyage by voyage as a percentage of insured value, and it moves the moment Lloyd's Joint War Committee lists the waters a ship must cross, as the straits.live rate tracker accessed August 22 shows. Before the crisis the baseline sat near an eighth of one percent of hull value per voyage.

During the spring hostilities quotes ran between half a point and three percent depending on route, ship type and flag, per Eightx's shipping-cost index of July 14. When a VLCC loaded with two million barrels faces even the low end of that band on a round trip, the premium alone rivals what the cargo used to earn the owner in freight.

The trigger this month was the missile strike on an ADNOC tanker crossing the strait on August 8. ADNOC disclosed afterward, in a statement Al Jazeera quoted on August 20, that fifteen of its vessels have been hit by missiles or drones since the war began, killing one crew member and injuring twenty. Three days later a US Navy helicopter attacked the Panama-flagged Vela Nova for running the American blockade of Iranian ports, Al Jazeera reported the same day. Both sides now bomb ships they say broke their rules.

It is not a blockade in the old sense. It is two navies auctioning the right of passage, and the insurers hold the paddle.

Lloyd's underwriters are not making a political statement; they are avoiding ruin, because one large total loss at these policy limits would wipe out years of premium from the entire Gulf book. Iran wants every hull on its northern route past Larak and Qeshm islands, feeding its ports and paying its dues. Washington insists on the southern Omani corridor under naval escort. The Gulf exporters — ADNOC, QatarEnergy, Aramco, Iraq's Basrah Oil Company — want their barrels out and their crews alive, and they increasingly do not care whose rules they bend to manage both, Al Jazeera noted on August 20.

The insurers hold the paddle

Beneath the week's strikes, the Gulf's export system rests on the assumption that transit was free. QatarEnergy declared force majeure after strikes on its Ras Laffan complex and has extended the declaration repeatedly, with twenty-four LNG cargoes affected through September according to its buyer Edison, Euronews reported on August 3. Doha has bought thirty-three US cargoes to plug the hole, as Reuters reporting relayed by TBIAfrica on July 30 stated. Every extension converts a temporary insurance problem into permanent lost market share, because buyers who retool their supply chains for American gas do not switch back when premiums fall.

The comparison that fits is the Tanker War of 1984 to 1988, when Iranian and Iraqi attacks pushed Lloyd's war-risk committees to levy special premiums on every Gulf entry and shippers answered with convoys, flags of convenience and dark transits rather than abandoning the waterway. The premium then, as now, outlived the individual ceasefires because underwriters had learned the loss curve the hard way.

What differs this time is scale and silence: the strait carries roughly a fifth of the world's seaborne oil, and this summer most of it moved without a transponder on.

Kpler counted 112 oil-and-gas vessels entering or leaving between August 1 and 19; eighty-nine of them, more than eighty percent, sailed dark or on unclassified routes, according to Al Jazeera on August 20.

In the Red Sea after 2023, war-risk premiums also multiplied, then settled into a grinding routine while traffic simply moved around the Cape at higher cost — the system adapted without collapsing. Hormuz offers no Cape. There is no long way around, which means the adaptation cannot be rerouting; it must be concealment, convoying or capitulation. The dark fleet is concealment. US escorts are convoying. The Omani-route ship-to-ship transfers that Saudi, Iraqi and Kuwaiti shippers reportedly run with trackers off are all three at once, energy researcher Marc Ayoub told Al Jazeera on August 20.

First, the exporter pays, either the premium or the discount for untracked, undated barrels sold mid-Gulf to traders willing to take delivery outside the strait. Second, the trader profits, buying risk cheaply from sellers who need cash today and holding title until the hull clears. Third, the end user pays through Asian refining margins and European gas prices, since Qatari molecules missing from September delivery get replaced at spot. On Thursday this week only a single laden tanker crossed the strait, the lowest count since May 7, with crude back above one hundred dollars, OilPrice.com reported on August 21.

Invisibility is cheaper than insurance

The escort business profits too. Naval protection has become a subsidy from American taxpayers to every shipowner who sails the Omani line, and Washington's own Development Finance Corporation was directed earlier this year to write war-risk cover the private market would not touch. Meanwhile the shadow fleet grows, and a hull that sails dark once can sail dark forever; the crisis is teaching the entire Gulf trade that invisibility is cheaper than insurance. That lesson will not unlearn itself when the truce holds.

Watch the premium print, not the missiles. If the next Joint War Committee assessment brings Hormuz back toward the June low of two percent, the read is wrong and the market believes the ceasefire is real, The Ops Con said July 14. If quotes hold near five percent through a quiet month, the read is confirmed: the war has been priced into the cost of showing up, permanently. The people absorbing the consequence are already set — the Filipino and Indian crews who sail dark routes for wages that never mentioned missiles, and the Abu Dhabi families counting ADNOC's dead.

A chokepoint cannot be closed by force alone; it is closed the moment passage costs more than the cargo can carry. By that measure, Hormuz closed weeks ago, quietly, at a broker's desk in London, and every barrel since has paid the toll.