Black Sea War-Risk Premiums Hit 20% of Hull Value as Strikes Mount

Black Sea war-risk insurance premiums have reached 20% of vessel value on the most exposed voyages, surpassing even the peaks of the Iran-Iraq tanker war of the 1980s, as Russia claimed fresh strikes on merchant ships over the weekend and human remains were found aboard a damaged tanker in Bulgaria.

Russia's defence ministry issued a succession of statements claiming attacks on commercial vessels allegedly carrying military supplies for Ukraine. On Saturday, Moscow reported hitting a dry cargo ship southeast of Odesa, followed by another claim involving a vessel east of the Ukrainian port. On Sunday, Russian authorities reported further strikes against a containership in Chornomorsk and a dry cargo vessel southwest of Odesa, with an additional statement referring to a containership allegedly transporting military equipment. Reuters counted Russian claims involving three merchant vessels on Sunday alone.

None of the latest attacks has been independently verified. The ships remain unidentified, there are no confirmed casualty figures, and it is unclear whether successive Russian announcements refer to separate vessels.

What was found aboard the Wine Trader?

Bulgarian prosecutors announced on Saturday that human remains had been discovered aboard the Wine Trader, a San Marino-flagged chemical tanker brought into Varna for repairs after a drone strike off Romania on October 15. Local television reported the remains of six seafarers, though prosecutors have ordered DNA testing to establish identities.

Seven of the ship's 12 crew were reported missing after the attack, with five rescued. The discovery confirms the attack as one of the deadliest single incidents for merchant seafarers in the current Black Sea campaign.

How close is the fighting to NATO territory?

Military activity is intensifying near alliance waters. Romanian radar detected two aerial targets near Snake Island on Sunday, prompting Spanish F-18 fighters and NH90 helicopters to scramble from the Mihail Kogalniceanu airbase. Authorities issued warnings to residents of Tulcea county, near the Danube Delta.

Bulgaria, Romania and Turkey activated their joint Black Sea mine-countermeasures group on Saturday, with vessels taking part in the Poseidon 2026 exercise off Bulgaria. France has extended the deployment of its Atlantique 2 maritime patrol aircraft in Romania for several more weeks.

That aircraft detected the three naval drones that sank the Greek-owned containership Contship Jet off Bulgaria on October 28, warning authorities and the vessel roughly an hour before the attack. Its commander acknowledged the aircraft could detect approaching threats but was unable to intercept them — a gap that leaves carriers exposed even with allied surveillance in place.

What does the insurance market show?

The mounting attacks are producing insurance costs without recent precedent. Black Sea war-risk premiums have reached as much as 20% of vessel value for particularly exposed voyages, according to insurance market sources. Specialist publication The Insurer reports that some vessels calling at Russia's Caspian Pipeline Consortium terminal in Novorossiysk have been quoted premiums of 20%, although most quotations were substantially lower.

For comparison, historical research from the University of Texas and contemporary reporting from the London insurance market show tanker-war premiums reaching 7.5% and occasionally exceeding 10% during the 1980s. Today's top Black Sea quotations are double that era's benchmark — meaning a $50m vessel could face a $10m premium for a single high-risk call.

What does it mean for box traffic?

The cost is now reaching cargo owners directly. CMA CGM introduced a $35 per TEU war-risk surcharge effective today on shipments to and from Black Sea countries, including cargo moving through Constanta, Varna, Burgas and Poti. For a 20,000 TEU nominal booking pattern across the region's ports, that scale of levy translates into a meaningful new fixed cost per shipment, and other carriers calling at Black Sea terminals are likely to follow if attacks continue.

With premiums already exceeding Iran-Iraq war levels, allied surveillance unable to intercept inbound drones, and carriers starting to pass costs to shippers, the commercial corridor through Constanta, Varna and Odesa faces a further squeeze on both capacity and rates in the weeks ahead.