Why this route anchors the tanker market
The Arabian Gulf to China route (commonly referenced as AG-China or TD3) is the highest-volume crude oil corridor in the world and the primary global benchmark for VLCC freight. Rate movements on this single route are watched as a proxy for the broader crude tanker market.
| Element | Detail |
|---|---|
| Cargo | Crude oil, predominantly |
| Vessel class | VLCC (200,000-320,000 dwt) |
| Voyage length | Roughly three weeks laden, comparable in ballast |
| Key chokepoint | Strait of Hormuz, plus the Strait of Malacca on the Asian approach |
Chokepoints and routing risk
Every vessel on this route transits the Strait of Hormuz, one of the most strategically sensitive chokepoints in global shipping, and most continue through or near the Strait of Malacca approaching Northeast Asia. Disruption or heightened tension at either point has an immediate and outsized effect on freight, insurance cost and routing decisions on this corridor specifically.
- War risk and insurance premiums are actively monitored and can move quickly with regional developments.
- Voyage planning accounts for both chokepoints as distinct risk and timing variables.
- Sanctions-related trade restrictions have periodically altered vessel sourcing and routing on this corridor.
Commercial character
China is the largest single crude oil importer in the world, and Middle East barrels — from Saudi Arabia, Iraq, the UAE and others — make up a substantial share of its import slate, competing with US, West African and Russian-origin crude depending on relative pricing and sanctions status.
Frequently asked questions
What does AG-China or TD3 mean?
AG-China refers to the Arabian Gulf to China crude oil route. TD3 is the specific Baltic Exchange route code historically used for the benchmark VLCC assessment on this corridor, used as shorthand across the tanker market.
What is the main routing risk on this corridor?
The Strait of Hormuz at the Middle East end and the Strait of Malacca on the approach to China are both strategically sensitive chokepoints, and freight and insurance cost on this route react quickly to any disruption or heightened tension at either.
Why is this route used as the global VLCC benchmark?
Because of its sheer volume — it is the highest-tonnage single crude oil corridor in seaborne trade — which makes it the most liquid and most closely watched reference point for VLCC freight assessment worldwide.