Shadow Fleet Ships Moving Sanctioned Oil ‘Set to Reflag to Russia’
At least 120 falsely flagged, sanctioned tankers are likely to reflag to Russia‘s registry in the coming months, as Western interdictions of stateless shadow fleet vessels accelerate a structural shift in Russia’s oil export logistics. The move, described by maritime analysts as a desperate bid for state protection, comes as the United States and its allies intensify efforts to seize vessels bypassing international sanctions.
Nearly 70 dark fleet tankers have been tracked by Maritime AI company Windward broadcasting Russia as their new flag since May 2025, including 40 since the boarding, seizure, or detention of falsely flagged ships by the U.S., UK, and France began in December. At least three vessels switched to Russia’s flag from fraudulent registries last week alone.
Vessels Shift to Russia’s Flag Amid Pressure
Throughout 2025, more than 300 shadow fleet tankers involved in sanctioned Iranian, Venezuelan, or Russian oil trades shifted to fraudulent flags, often after repeated flag hopping. These vessels were subsequently deregistered by permissive registries, after sustained pressure to remove Western-sanctioned tonnage, leaving many ships effectively stateless.
According to Windward, reflagging to Russia restores legal protection under international maritime law, at least for now. The trend toward reflagging to Russia is expected to accelerate if governments, including the U.S., maintain pressure and continue interdicting falsely flagged vessels.
Growing Enforcement Risk for Stateless Ships
Windward data shows approximately 120 Russia-trading tankers over 180 meters in length broadcasting flags from 19 fraudulent registries. These vessels are part of the more than 650 tankers sanctioned for evading Russia-related measures and have been under close surveillance while sailing to and from Russian Baltic ports over the past two years.
A joint statement issued on January 26 by multiple coastal governments warned of increased action against vessels without nationality or valid documentation, reinforcing the growing enforcement risk of stateless ships.
Original Article: Shadow fleet ships moving sanctioned oil ‘set to reflag to Russia’ — Shippingtelegraph