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Shadow Fleet

Definition and Global Scale

The shadow fleet (also called the dark fleet) refers to the ecosystem of oil tankers that operate at the margins of international maritime law to transport crude from sanctioned nations — primarily Russia, Iran, and Venezuela — to buyers, concealing cargo origin, ownership, or destination. These vessels exploit gaps in ship registration, insurance, and tracking systems.

Key details
  • As of mid-2025, approximately 1,140 shadow tankers were estimated to exist, comprising over 18% of the global oil tanker fleet.
  • Common evasion tactics include: disabling AIS (Automatic Identification System) transponders, falsifying location data, ship-to-ship transfers in international waters, registering under flags of convenience (Panama, Liberia, Marshall Islands), and using complex multi-layer ownership structures.
  • Shadow fleet vessels typically forgo P&I (Protection and Indemnity) insurance from established Western clubs, leaving crew members without standard maritime compensation in case of accidents or death.
  • India, China, and Turkey are identified as primary destination countries for shadow-fleet-transported crude.
In the news

● Tracked since February 25, 2026 · last seen June 12, 2026 · updates as the daily brief publishes

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