Dark Fleet | 19 Mar 2026

Source: TH 

A China-bound sanctioned Russian tanker (Aqua Titan), part of the ‘dark fleet’, was diverted mid-route to India. 

• Dark Fleet:  The 'Dark Fleet' or 'shadow fleet' refers to a growing armada of aging, often uninsured commercial vessels utilized specifically to transport petroleum products subject to international sanctions, primarily from Russia, Iran, and Venezuela. 
• Modus Operandi:  
  • Disabling AIS: These ships routinely turn off their Automatic Identification System (AIS) transponders to "go dark" and evade satellite tracking. 
  • Ship-to-Ship (STS) Transfers: They engage in risky mid-ocean transfers (Bunkering) to mix sanctioned crude with non-sanctioned oil, thereby masking its true origin. 
  • Flags of Convenience: They register under countries with lax maritime oversight (e.g., Panama, Liberia) and frequently use shell companies to obscure ownership. 
    • All vessels must fly a flag indicating their legal jurisdiction, as per the United Nations Convention on the Law of the Sea (UNCLOS), which determines a ship’s nationality. However, limited enforcement in international waters (high seas) allows shadow fleets to exploit regulatory grey zones and evade oversight. 
• Concerns with Dark Fleet: The use of the dark fleet raises concerns of low transparency, regulatory gaps, environmental risks, weakening of global sanctions enforcement mechanisms, and exposes India to geopolitical risks and compliance challenges despite cost advantages from discounted crude. 
  • Tracking by S&P Global and Ukrainian intelligence shows that Russia relied heavily on its shadow tanker fleet in 2025, with India as the main destination importing about 5.4 million tonnes (or 55% of Russian crude oil sales via shadow tankers).