Russia's Ship Registry Grows by a Third as Enforcement Strips Tankers of Other Flags

The number of ships sailing under the Russian flag has grown by about a third as Moscow keeps its fossil fuel exports moving despite Western sanctions, the Financial Times reported. Maritime data compiled by Windward puts the Russian registry at 382 vessels by the end of June 2026, up 36 percent since the start of 2025, with 107 shadow vessels joining the Russian flag over that period.

The growth is a direct result of enforcement succeeding at its narrow goal, cutting false flags, without stopping the ships from sailing under a different one. European detentions and registry pressure cut the number of shadow fleet ships flying false flags to less than half between October 2025 and June 2026. Barbados and Palau removed sanctioned vessels from their registries, and Panama cut its count of sanctioned shadow vessels by close to two thirds since May 2025. A tanker without a valid flag cannot lawfully trade or claim protection at sea, so the remaining option is the Russian flag.

That shift carries a cost for Moscow. A Russian-flagged tanker is easier to identify, easier to sanction as a unit and harder to insure through Western providers, which pushes the cargo toward Russian and non-Western insurance and toward buyers willing to accept the compliance risk. It also converts a deniable commercial fleet into an openly state-linked one, which raises the political stakes of any interdiction.

European governments and Russian officials describe the same facts in opposite terms. Brussels presents reflagging as evidence that enforcement is closing the informal channels. Moscow presents the growth of its registry as the restoration of a national merchant fleet.