One narrow strait carries roughly a fifth of the world's oil

The Strait of Hormuz, between Iran and Oman, narrows to about 33 km wide at its tightest point, yet an average of 20 million barrels of crude and refined products flow through it daily. That's roughly a fifth of global petroleum consumption moving through a single chokepoint the U.S. government calls the world's most important.

— U.S. Energy Information Administration, Strait of Hormuz remains critical oil chokepoint — Today in Energy, 2024