Greek authorities have issued a fleet-wide security advisory following drone attacks on two Greek-operated oil tankers in the Black Sea, after the vessels sustained damage near Russian port approaches.
Vessels identified
Greek shipping officials confirmed that one of the affected vessels was the oil tanker Seajewel, which is commercially operated by Thenamaris.
The second tanker has been identified as being under Greek management, though its name has not been publicly released by authorities at this stage.
No injuries were reported on either vessel.
Charterers and trade
One of the tankers was operating under charter linked to a major international energy company, though charterer identity has not been formally disclosed in official advisories. Greek authorities noted that both vessels were engaged in Black Sea energy trades at the time of the incidents.
Official response
Following the attacks, the Greek Shipping Ministry circulated guidance urging Greek-flagged and Greek-managed vessels to:
- reassess voyage risk in the Black Sea
- tighten onboard security procedures
- review exposure to unmanned aerial and surface threats near port approaches
War-risk insurers have since reviewed additional premium levels for Black Sea calls involving Russian terminals.
Maritime context
Greek-managed tankers account for a significant share of global crude and product tonnage. As a result, security advisories issued by Greek authorities tend to influence broader industry risk assessments, particularly for energy trades involving the Black Sea.
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