MediumI Geo-Economics & Chokepoints16 October 2026, Friday · 12:00 TRT (UTC+3)

Two tankers hit off Jubail as attacks reach the northern Gulf

According to UKMTO, on 16 October one tanker was struck by an unidentified projectile 68 nautical miles north-east of Jubail in Saudi Arabia. A second tanker, 78 nautical miles north-east of the city, was hit by a rocket-propelled grenade fired from a small boat. The crews are safe.

Location: OFF JUBAIL

UKMTO alerts relayed by DEFCONLevel say the first attack took place at 09:00 UTC on 16 October and was reported late; the crew was evacuated and no environmental impact was reported. In the second, the master reported that a rocket-propelled grenade fired from a small boat struck the tanker's port quarter at 19:22 UTC. A Reuters report carried by Arab News said it could not initially be verified whether the two reports described the same incident. UKMTO issued them as separate alerts, numbered 174-26 and 175-26. No one has claimed responsibility, and the type and origin of the projectile were not given.

The location is what matters. The attacks took place roughly 600 kilometres west of Hormuz, off the industrial and export hub on Saudi Arabia's eastern coast. Al Jazeera's report of 17 October dates the grenade attack to Saturday, while the UKMTO timestamp points to 16 October. The same report says UKMTO logged 125 outbound and 129 inbound transits in the seven days to 16 October. It adds that the first half of October was the most intense period of attacks in the war. According to Times Kuwait, regional authorities have placed surrounding waters under monitoring.

Talay assessment

Bottom line

The attack zone has stretched from the mouth of Hormuz to the northern Gulf and the export waters off Saudi Arabia's eastern coast. The use of a grenade launcher from a small boat shows that cheap, deniable tools can render a wide area hazardous. The most likely path is for underwriters to extend the war-risk zone to the whole Gulf, raising loading costs at Saudi eastern terminals as well.

Likely effects

Freight and insuranceNegativeWeeks
Attacks off Jubail extend the war-risk premium beyond the Hormuz transit to loadings inside the Gulf; cargoes from Saudi Arabia's east coast become dearer.
Saudi exportsNegative1–6 months
With the eastern terminals within range, the kingdom leans harder on Yanbu, which was itself targeted by a Houthi missile on 16 October.

Possibilities, ranked

1
Sporadic attacks continue55%
A handful of attacks a month hit the northern Gulf, the perpetrators stay unidentified and traffic is not halted.
Watch: UKMTO alert numbers for incidents inside the Gulf
2
Insurance zone widens30%
Lloyd's Joint War Committee adds the northern Gulf to its high-risk areas and loading costs jump.
Watch: An update to the Joint War Committee listed areas
3
Attacks pull back to Hormuz15%
The northern incidents remain isolated and attacks concentrate again around the strait.
Watch: UKMTO's end-October attack map

Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.

Market reaction

Indicators affected

Tankers hit (16 October)▼ 2
7-day transits (UKMTO)▲ 254

Historical context