Ukrainian Drone Attacks Halt Russian Baltic Oil Ports Primorsk and Ust-Luga

Impact verdict

High impact. Loss pathway: Confirmed operational halt of Primorsk and Ust-Luga — two of Russia's largest Baltic crude oil and LNG export hubs — due to Ukrainian drone attacks sustained for over one week. Evidence: Finnish Border Guard confirms both oil and LNG shipments halted; named facilities are major export infrastructure with significant marine cargo, energy, and war risk exposures across London market books. Limit: Physical damage extent unclear; disruption may reflect precautionary shutdown rather than total infrastructure loss, but confirmed port closure triggers war risk and cargo delay clauses, potential business interruption claims, and will affect Baltic war risk premium pricing and JWC listed area underwriting.