Geopolitics › Russia & Eurasia › Russia's war economy under sanctions
Russia's oil 'shadow fleet'
Grew after the Dec 2022 price cap· Resource or chokepoint
FactTreaties, membership, measured data, events.
Hundreds of aging tankers with murky ownership that carry Russian oil outside Western insurance and the G7 price cap.
See it on the Geopolitics map →The picture
After the G7 capped Russian crude at $60 a barrel in December 2022, Russia assembled a fleet of old tankers flagged in places like Gabon or the Comoros, often with hidden owners and no Western insurance. Estimates put it at 600–1,000 ships carrying most of Russia's seaborne crude. More than 600 tankers are now sanctioned by the EU, UK and US. One, the Eagle S, was accused of cutting Baltic cables in December 2024; in 2026 European navies seized at least nine suspect tankers.
Why it matters
It keeps Russian oil money flowing despite sanctions, and its old, poorly insured ships pose oil-spill and sabotage risks in the Baltic and other busy European waters.
Key facts and numbers
Ship-tracking data (Kpler, Lloyd's List, S&P Global), EU, UK and US sanctions lists naming vessels, court cases after seizures, and investigative reporting on shell-company owners.
What to watch
Disputed: the fleet's true size, who ultimately owns it, and whether boarding ships on the high seas is lawful; Russia calls the seizures piracy.
Connections (2)
▸Russia's oil 'shadow fleet' evades Sanctions and financial warfareFact
The relationship
The shadow fleet lets Russia sell crude above the G7 price cap without Western insurers, shippers or banks, the levers the cap relies on for enforcement. Shell companies, flag-hopping, switched-off transponders and ship-to-ship transfers hide cargo origins, so Western governments now sanction individual ships.
Since when and why
Worldwide since 2023, especially Baltic, Black Sea and Mediterranean routes to India and China; countered by EU, UK and US Treasury listings and European naval boardings.
How we know
Ship-tracking data showing dark voyages and transfers, sanctions designations of more than 600 tankers, and court cases after seizures in 2025–26.
What to watch
Debated: whether listing ships faster than Russia can buy replacements ever works, and how much revenue the fleet actually preserves for Moscow.
▸Russia's oil 'shadow fleet' carries oil through Bosporus and the Turkish StraitsFact
The relationship
Tankers loading at Russia's Black Sea port of Novorossiysk must pass the Bosporus and Dardanelles to reach world markets. Under the 1936 Montreux Convention, Turkey must let merchant ships through in peacetime, though since December 2022 it has demanded proof of insurance from tankers.
Since when and why
Istanbul's Bosporus, ongoing; in November 2025 Ukrainian sea drones hit two sanctioned tankers, Kairos and Virat, in the Black Sea off Turkey's coast, alarming Ankara.
How we know
Turkish maritime rules, ship-tracking data on Bosporus transits, and Turkish and Ukrainian statements after the 2025 tanker strikes.
What to watch
Whether Turkey would ever block uninsured shadow-fleet tankers, risking Russian anger and its Montreux obligations, is an open question.