Iran controls one fifth (20%) of the world's oil transports.
85% confidence
EconomyMiddle East
Omissions
The 20% figure refers specifically to the volume of oil that passes through the Strait of Hormuz, not to Iranian operational control over world oil transport in general.
Iran geographically controls the strait but not necessarily the transport operations themselves.
The 20% data is from the 2024 period according to EIA sources.