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Iran Hits Another Tanker in Strait of Hormuz | CalculateCBM

Iran Hits Another Tanker in Strait of Hormuz | CalculateCBM

Another Strait of Hormuz tanker attack landed on Tuesday, and this one arrived alongside a fresh round of US strikes on Iranian targets. If you move containers, project cargo or bulk through the Gulf, this is now a pricing problem rather than a headline. Roughly a fifth of the world's seaborne oil passes through a channel about 21 miles wide at its narrowest point, and every underwriter watching that channel reprices when a hull gets hit. Expect the cost to show up on your invoice before it shows up in the news.

What Happened

Iran struck a tanker in the Strait of Hormuz on Tuesday, according to the United Kingdom Maritime Trade Operations centre, the British military body that tracks incidents in the region. The Associated Press cited UKMTO in reporting the attack. On the same day, the United States carried out another round of strikes on Iranian targets, continuing a run of attacks and counterattacks between Tehran and Washington.

This is not an isolated hit. It follows earlier strikes on merchant shipping in the same waterway, which means insurers and owners are treating the Gulf as an active conflict zone rather than a one-off risk event. Naval escorts, convoy routing and transit windows are all being reassessed. Some owners have already slowed or paused Gulf calls while they wait for clearer guidance.

Impact on Freight Rates and Operations

The first cost you will see is war-risk insurance. Hull war-risk premiums in the Gulf are quoted as a percentage of vessel value per transit, and they move fast when attacks repeat. Carriers pass that through as a war-risk surcharge, usually a flat figure per TEU or per revenue tonne, and those surcharges typically apply with only a few days' notice.

The second cost is time. If owners divert, wait for escort windows or hold outside the strait, your Gulf port pairs lose schedule reliability first. Bunker demand also reprices when oil moves, and bunker adjustment factors follow within a billing cycle or two. Anything routed via Jebel Ali, Dammam, Bandar Abbas or the northern Gulf is exposed. Trades that only touch the Gulf for transhipment feel it later, through equipment that fails to come back on time.

Watch your contracts as well. Many carrier bills of lading carry liberty and war-risk clauses that let the line discharge at an alternative port and bill you for the onward leg.

What Shippers Should Do

  • Ask your carrier for written war-risk surcharge terms now, including the notice period and whether it applies per TEU or per weight/measure. Get it before the next quote cycle, not after.
  • Check your cargo insurance for a war and strikes exclusion. Standard marine cover often carves out war risk in named zones, and the Gulf is likely to be listed or added.
  • Build 7 to 14 days of buffer into Gulf lead times and tell your buyers before they plan production around old transit figures.
  • Price an alternative for time-sensitive volume, whether that is air freight out of Dubai, a Red Sea or Jeddah routing, or splitting a shipment so the critical portion moves separately.

Key Takeaway

Treat every Gulf booking as a variable-cost booking until the strikes stop: get the surcharge terms in writing, confirm your war-risk cover, and add transit buffer before your customer does it for you.

Plan Your Shipment: Plan your load with our Freight Class Calculator and Pallet Calculator.

Source: Hellenic Shipping News

CalculateCBM Take

War-risk and bunker surcharges on Gulf routings are billed per revenue tonne, so your CBM figure decides what you pay. On a 12 CBM LCL consignment weighing 3,200 kg, the chargeable basis is 12 W/M rather than 3.2, and a $9 per W/M war-risk surcharge adds $108 to that one shipment. Run your cartons through the CBM Calculator before you accept the quote, because tightening 12 CBM down to 10 through better pallet stacking cuts every per-W/M surcharge by the same 17%.

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