Iran Escalates Hormuz Attacks, Surge in Vessels with Engine Room Damage
nashnova research
In the first two weeks of October, at least 23 vessels were struck near the Strait of Hormuz and 5 reported direct engine-room hits — Iran's shift from drones to guided missiles is disabling ships for months, squeezing global tanker capacity one hull at a time.
Why did the attacks suddenly get worse?
Iran has shifted from drones to infrared-guided missiles. This means → the missiles home in on the hottest part of a ship — the engine room — and carry a far larger warhead than a drone.
In plain terms = drones were like throwing rocks at a hull; missiles strike the vital organ. A direct engine-room hit can cause fire, total loss of propulsion, and months of downtime.
At least two struck vessels sank last week, including a container ship hit inside the Strait.
What happens when an engine room is hit?
The engine room is a ship's heart. Damage triggers a three-stage cascade: fire → loss of power → withdrawal from service for months.
Phillip Belcher, maritime director at Intertanko (the international tanker-owners' body), said attack frequency is rising, and with it engine-room destruction and disabling fires.
This reflects a strategic shift from harassment to disablement — Iran does not need to sink every ship; crippling the engine removes it from the market just as effectively.
Is oil still flowing? How far apart are the numbers?
U.S. Energy Secretary Chris Wright said Hormuz cargo volume is roughly 80% of normal; Iraq said its own exports are approaching pre-conflict levels.
Preliminary data from trade-intelligence firm Kpler shows the seven-day average of Middle East oil exports slightly above pre-conflict levels.
In plain terms = oil has not stopped flowing, but three sources give three different answers — "normal" depends on who is counting and what baseline they use.
How tight is the capacity bottleneck?
Oil Brokerage Ltd. wrote on October 19: with almost no shipowners willing to enter the area, every VLCC hit is a material loss to global supply.
At points this month, chartering a single VLCC (very large crude carrier — a supertanker carrying ~2 million barrels) in some markets cost more than launching a rocket.
This means → the problem is not just the oil price; it is "oil exists but no ship will carry it." Tanker scarcity is now one of the tightest bottlenecks in the global oil market.
Who is protecting the crews?
The United Kingdom Maritime Trade Operations centre reported that a recent strike on a bulk carrier hit the bridge and crew quarters directly.
Jakob Larsen, chief security officer at Bimco (the world's largest shipping trade body), said attacks concentrate on the engine room or bridge to maximize damage while keeping oil-spill risk relatively low — but crew in those areas face serious casualty risk.
This reflects the attacker's calculus: avoid a large-scale spill that would trigger international environmental backlash, while showing near-zero regard for human life aboard.
What to watch next?
September recorded zero engine-damaging strikes, yet prior months saw at least 7 such incidents on non-Iranian vessels — October's jump is not a gradual trend but a step change.
In plain terms = the key variable is singular: how many more ships can be disabled before global energy logistics buckle. Each crippled hull thins the margin further.
The parallel to the 1980s "Tanker War" is hard to miss — Iraq and Iran deliberately targeted tanker engine rooms then, too. Some ships caught fire and sank; others sat damaged in the northern Gulf for years.
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