I have been staring at that 231-barrels-per-second number for days. It is the kind of figure that makes the abstract suddenly concrete - this is not a pipeline, it is not a storage facility, it is a 21-mile-wide gap in the map that the entire global economy funnels through, every hour of every day, with almost no backup plan.

How the Flow Has Changed Over Time

The volume of oil moving through the Strait of Hormuz has grown significantly over the past 15 years, rising from 17 million barrels per day in 2011 to a peak of 21 million in 2018 and 2022, before settling back to 20 million by 2024 and 2025. The dip in 2020 reflects the COVID-19 collapse in global oil demand. The post-2022 decline reflects OPEC+ production cuts, not any reduction in the strait's importance.

The chart above tells a clear story: the strait is carrying more oil today than it did a decade ago, even with the modest pullback from the 2022 peak. The 2020 dip to 18.5 million b/d was the deepest in recent history and reflected the historic collapse in global travel and economic activity during the COVID-19 pandemic - when global oil demand fell by nearly 9 million barrels per day, the largest single-year drop ever recorded.

What Actually Moves Through the Strait

The 20 million barrels per day figure covers multiple categories of oil and energy products. It is not just crude oil - it includes refined petroleum products and, notably, a substantial volume of liquefied natural gas (LNG) that is separate from the petroleum figure entirely.

Qatar alone accounts for the bulk of the LNG component. Qatar is the world's largest LNG exporter and has no alternative route - every cubic meter of its gas that goes to Japan, South Korea, China, or Europe must pass through this strait. In 2024, around 83% of the LNG transiting Hormuz was heading to Asian markets.

Which Countries Send Oil Through Hormuz

Saudi Arabia is the single largest contributor, accounting for 38% of all crude oil and condensate moving through the strait in 2024 - approximately 5.5 million barrels per day. Iraq is second at roughly 22-23%, and the UAE third at around 13%. Together, the top five producers - Saudi Arabia, Iraq, UAE, Iran, and Kuwait - account for more than 93% of total Hormuz crude flows.

The destination data is perhaps the most striking element in the entire Hormuz picture. Roughly 84% of the crude oil and condensate that exits the strait heads to Asian markets. China and India alone absorbed approximately 44% of all Hormuz crude exports in 2025. Japan, South Korea, and other Asian buyers account for most of the remainder. The United States, by contrast, imported only about 0.5 million b/d from Persian Gulf sources through Hormuz in 2024 - roughly 2% of total U.S. petroleum consumption.

There Is Almost No Way Around It

This is the core vulnerability of the global oil supply. If the Strait of Hormuz were closed, the world cannot simply reroute those 20 million barrels per day through an alternative. The pipeline bypass capacity that exists covers only a fraction of normal Hormuz flows - and five of the major producing countries have zero pipeline alternatives whatsoever.

Even at maximum theoretical capacity, Saudi Arabia's East-West Petroline and the UAE's ADCOP pipeline together could handle only 3.5 to 5.5 million barrels per day - covering barely a quarter of what normally flows through Hormuz. Iraq, Kuwait, Qatar, Bahrain, and Iran have no meaningful pipeline bypass infrastructure at all. Their oil exports are entirely dependent on the strait remaining open.

Why Asia Is Most Vulnerable

The 84% Asia figure is not just a statistic - it represents the structural dependence of the world's two largest crude oil importing countries on a single four-mile-wide passage. China and India between them absorbed 44% of all Hormuz crude in 2025. Japan and South Korea are even more acutely exposed: approximately 90-95% of Japan's crude oil comes from the Middle East, and roughly 70-74% of its total crude imports pass through the Strait of Hormuz directly.

What Is Happening Right Now

The Strait Has Always Been a Flashpoint

The current crisis is without precedent in its scale, but the Strait of Hormuz has been at the center of geopolitical tension for decades. Iran has threatened to close it numerous times - most notably in 2012 and 2019 - but prior to 2026 had never actually carried out a full closure. The strait's strategic importance has made it a constant feature of Middle Eastern geopolitics since the Iran-Iraq War of the 1980s, when both sides attacked each other's oil infrastructure and tanker traffic in the "Tanker War" phase of the conflict.

Strait of Hormuz: Complete Reference Data