European Union leaders are pushing for coordinated action to dismantle Russia’s growing “shadow fleet” of oil tankers, which they warn is undermining sanctions and fueling the Kremlin’s war economy. The fleet, composed of an estimated 700 aging, poorly insured vessels operating under flags of convenience, is responsible for transporting up to 85% of Russia’s oil exports—contributing roughly a third of its national budget.
Ahead of an EU foreign ministers’ summit, where 180 additional ships are expected to be sanctioned—raising the total to 350—Baltic leaders emphasized the need for a united enforcement strategy. Lithuanian Foreign Minister Kęstutis Budrys criticized the current fragmented approach, warning that legal ambiguity and fear of military escalation have rendered enforcement efforts ineffective.
The urgency escalated after a sanctioned tanker, the Jaguar, was intercepted by the Estonian navy within the country’s exclusive economic zone. The crew resisted inspection, prompting Estonia to escort the ship out without boarding. Shortly after, a Russian Su-35 fighter jet breached Estonian airspace in what is seen as a retaliatory move—a rare show of military support for the shadow fleet and the first airspace violation in three years.
Estonian Defence Minister Hanno Pevkur called for stricter maritime restrictions, proposing that sanctioned ships be banned not just from EU ports, but also from entering EU economic waters—a move that would limit Russian oil flow but risk clashing with maritime law.
NATO’s Baltic Sentry mission, initially tasked with protecting undersea infrastructure, has now hailed over 1,800 vessels to verify flag status. Calls are growing to expand its mandate to counter the shadow fleet more directly, amid fears that the unchecked growth of this fleet raises the likelihood of military incidents in the region.
Experts, including Anna Wieslander of the Atlantic Council, argue that the shadow fleet is not just a workaround to sanctions—it’s central to Russia’s economic and national security apparatus. “We must understand the scale of this operation,” she said. “Sanction them all—why not?”