What Happened
- The Indian Coast Guard intercepted three US-sanctioned oil tankers approximately 100 nautical miles west of Mumbai on 6 February 2026, following technology-enabled surveillance and data-pattern analysis.
- The three vessels -- Stellar Ruby, Asphalt Star, and Al Jafzia -- had been sanctioned by the US Office of Foreign Assets Control (OFAC) in 2025 for allegedly participating in the transport of sanctioned Iranian oil.
- The vessels frequently changed identities and their owners were based overseas, with the syndicate exploiting mid-sea ship-to-ship transfers in international waters to move discounted oil from conflict-affected regions.
- The Indian Coast Guard's digital investigation and data-pattern analysis identified two additional vessels suspected of involvement in illicit ship-to-ship oil transfers.
- The operation comes amid improved US-India relations, with Washington cutting import tariffs on Indian goods to 18% from 50% after New Delhi agreed to scale back Russian oil imports.
Static Topic Bridges
Shadow Fleet and Sanctions Evasion in Maritime Trade
The "shadow fleet" refers to a network of ageing, poorly insured tankers used to circumvent international sanctions on oil exports from countries like Russia, Iran, and Venezuela. The global shadow fleet is estimated at over 1,400 vessels, employing tactics including AIS (Automatic Identification System) transponder manipulation, flag-hopping between lenient registries, frequent identity changes, and covert ship-to-ship (STS) transfers in international waters. Approximately 72% of shadow fleet vessels are over 15 years old and 60% lack adequate insurance, posing significant environmental risks.
- Global shadow fleet size: estimated 1,400+ vessels
- Russia's shadow fleet alone: 155-591 vessels (estimates vary)
- Common flags of convenience used: Panama, Liberia, Marshall Islands, Cook Islands, Gabon
- Sanctions evasion methods: AIS manipulation, identity spoofing, STS transfers, flag-hopping
- Environmental risks: ageing vessels (72% over 15 years old), inadequate insurance (60%)
- OFAC (US Treasury): primary sanctions enforcement body designating vessels and entities
Connection to this news: India's seizure of three shadow fleet tankers within its waters demonstrates both compliance with international sanctions and growing capability to detect and intercept deceptive shipping practices using advanced surveillance technology.
India's Maritime Security Architecture
India's maritime security framework operates through a multi-layered institutional structure involving the Indian Navy, Indian Coast Guard (ICG), and the National Committee for Strengthening Maritime and Coastal Security (NCSMCS). The Indian Coast Guard, established under the Coast Guard Act, 1978, is responsible for coastal security, maritime law enforcement within India's Exclusive Economic Zone, and protection of maritime interests. India's Information Fusion Centre for the Indian Ocean Region (IFC-IOR), established in 2018 at Gurugram, provides maritime domain awareness.
- Indian Coast Guard: established 1978 under the Coast Guard Act
- ICG functions: coastal security, EEZ surveillance, anti-smuggling, search and rescue, marine pollution response
- IFC-IOR (Information Fusion Centre - Indian Ocean Region): established 2018 at Gurugram, 30+ partner nations
- National Maritime Domain Awareness (NMDA) project: real-time tracking of vessel movements
- India's EEZ: 2.3 million sq km (200 nautical miles from coastline)
- Coastal radar chain: network of 74 radar stations covering India's coastline
- SAGAR (Security and Growth for All in the Region): India's maritime vision for the Indian Ocean
Connection to this news: The ICG's successful interception using "tech-enabled surveillance and data-pattern analysis" demonstrates the operational effectiveness of India's maritime domain awareness capabilities, particularly the NMDA project and coastal surveillance network.
Exclusive Economic Zone (EEZ) and UNCLOS
The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982 and ratified by India in 1995, establishes the legal framework for maritime zones. Under UNCLOS, a coastal state's Exclusive Economic Zone extends up to 200 nautical miles from the baseline, within which the state has sovereign rights over natural resources and jurisdiction over marine environmental protection. India legislated its maritime zones through the Territorial Waters, Continental Shelf, Exclusive Economic Zone and Other Maritime Zones Act, 1976.
- UNCLOS adopted: 1982; entered into force: 1994; India ratified: 1995
- India's EEZ: approximately 2.3 million sq km (18th largest globally)
- Territorial waters: 12 nautical miles; Contiguous zone: 24 nautical miles; EEZ: 200 nautical miles
- Continental shelf: can extend to 350 nautical miles with scientific evidence (India has petitioned for extension)
- India's Maritime Zones Act: 1976 (preceded UNCLOS ratification)
- Rights within EEZ: exclusive rights over resources, jurisdiction over installations, marine research, and environmental protection
Connection to this news: The seizure of shadow fleet tankers within India's EEZ demonstrates India's exercise of sovereign jurisdiction over its maritime zones as established under UNCLOS and domestic law, including the authority to enforce law against vessels engaged in illicit activities.
Key Facts & Data
- Vessels seized: Stellar Ruby, Asphalt Star, and Al Jafzia
- Location: approximately 100 nautical miles west of Mumbai
- Date of interception: 6 February 2026
- Sanctioning authority: US OFAC (sanctioned in 2025)
- India's EEZ: ~2.3 million sq km
- Global shadow fleet: estimated 1,400+ vessels
- Indian Coast Guard established: 1978
- IFC-IOR partner nations: 30+
- Coastal radar stations: 74 across India's coastline
- UNCLOS ratified by India: 1995