Which Greek shipowners made billions from Russian oil amid Western sanctions
Financial Times analysis says Greek tanker owners earned at least $3.8B transporting Russian oil over the past three years despite G7 price-cap sanctions. Dynacom Tankers led with at least $915M, followed by Olympic Shipping (Onassis) at $404M and Stealth Maritime and Polembros Shipping at over $200M each. The article cites potential tightening of sanctions and notes some firms reduced or halted activity.
How this was made

The 30-second read
Why it matters
It argues that profits have been substantial but that US/EU pressure to tighten sanctions could restrict or terminate Russian oil transport, with prior examples of Greek firms reducing activity after intermediary sanctions.
Market read
Traders get a sanctions-risk read-through for Greek tanker operators: large historical profits under the price cap, but conditional downside if US/EU close enforcement loopholes.
What to watch
The analysis covers only routes with available pricing data (~389M barrels included; ~153M excluded), so the true distribution of risk and exposure may differ from the ranking.
Background
The article summarizes an FT/Argus-based analysis of Russian oil transport revenues by Greek shipowners since June 2023 under the G7 price-cap framework.
Ticker impact
TMS Tankers is mentioned as having generated about $150M from Russian oil transport before halting the activity after US sanctions on Turkey/UAE entities.
Downside risk to any remaining Russian exposure if similar intermediary enforcement expands.
The piece ties a specific enforcement action (US sanctions on shipping entities in Turkey/UAE) to a concrete operational halt by TMS.
Market effects
Highlights sanctions-enforcement risk for Greek tanker operators reliant on Russian crude under the G7 price cap.
Could increase political/regulatory scrutiny of Greek shipping’s Russia exposure amid Athens–Kyiv tensions.
Tightening enforcement could affect freight demand and route economics for global tanker markets tied to Russian barrels.
Counterpoint
Even if pressure increases, the article suggests enforcement relies on declarations and charterer/supplier assurances; loopholes may persist, limiting immediate revenue damage.
Key entities
- companyDynacom Tankers
Greek tanker operator of George Prokopiou; cited as top earner with at least $915M in Russian crude transport revenues.
- companyOlympic Shipping and Management (Onassis Group)
Second-highest Greek earner in the article’s ranking; estimated at least $404M.
- companyStealth Maritime
Athens-based firm cited as earning more than $200M from transporting Russian oil.
- companyPolembros Shipping
Athens-based firm cited as earning more than $200M from transporting Russian oil.
- companyTMS Tankers
Reduced/paused Russian oil transport after US sanctions on shipping entities in Turkey/UAE; cited at about $150M before halting.


