Crude oil flows out of the Strait of Hormuz hit 33.7 million barrels during the week starting September 20, 2026. Ship-tracking data from Kpler puts this volume roughly on par with previous weeks, showing that the critical global energy chokepoint is still moving heavy loads despite ongoing regional conflict.
If you just look at the raw numbers, you might think everything is fine. But tanker traffic tells a far more complicated story about how energy markets are surviving day by day. For another view, see: this related article.
Behind the Supertanker Numbers
The weekly data reveals that out of 19 total tankers moving through the waterway, 17 were Very Large Crude Carriers, each capable of hauling two million barrels of crude. Most of this oil originates from Saudi Arabia, with Iraq following closely behind.
For comparison, the full preceding week saw roughly 49.2 million barrels shipped out through the strait. While the weekly pace looks steady on paper, daily transit numbers swing wildly. For instance, vessel tracking showed traffic dropping from 14 commodity ships down to just nine in a single 24-hour window. Similar insight on this matter has been provided by Financial Times.
When you track energy logistics this closely, headline figures miss the operational reality.
The Hidden Variables in Maritime Tracking
Official tallies never capture the entire picture. A significant blind spot exists because an unknown number of commercial vessels transit the Strait of Hormuz with their transponders turned off to avoid targeting.
"Counting ships via open-source tracking data right now is like trying to map a forest during a blackout."
💡 You might also like: the work number telephone number
Beyond dark vessels, regional pipeline infrastructure shifts have forced state-run producers to change tactics. Saudi Aramco has leaned heavier on Strait of Hormuz exports after attacks on its East-West Pipeline interrupted shipments running toward the Red Sea port of Yanbu.
Before the broader conflict involving Iran escalated, the strait regularly handled around 125 large commercial vessels daily—ranging from container ships and gas carriers to massive tankers—accounting for roughly 20 percent of global oil and liquefied natural gas supply. Today's average traffic sits far below those historical baselines, leaving markets hypersensitive to every single tanker movement.
What This Means for Energy Markets
Markets hate uncertainty, but they've grown weirdly accustomed to navigating this specific bottleneck. When a single pipeline disruption can force millions of barrels back onto maritime routes, routine weekly totals mask underlying fragility.
Keep an eye on daily transit volatility rather than weekly sums. Pay attention to pipeline repair updates in Saudi Arabia and watch how insurance rates for Gulf shipping fluctuate. Those variables dictate where global energy prices head next, long before the weekly export totals get published.
