Oil Is Moving Again, So Why Is Fuel Still Tight?
Gulf producers had crude moving through the Strait of Hormuz again by October 5, 2026, just as fresh attacks on ships threatened to stop the recovery.
Saudi crude shipments through the Strait rose from around 1.4 million barrels a day in late August to around 4.1 million barrels, according to Wall Street Journal reporting on October 5. The return came alongside continued use of bypass routes, detour pipelines and sea lanes that avoid the Strait. In September, roughly 40% of the Middle East's crude oil exports bypassed Hormuz, compared with about 17% before the war, according to Wall Street Journal reporting on October 1. Analysts put total Middle East crude exports back at prewar levels.
Strait flows and bypass capacity
Iran's ability to choke off oil flowing through Hormuz is breaking down, weakening its leverage in talks with the U.S., the Wall Street Journal reported on September 28. That followed weeks of doubt about true shipment numbers. Commercial ship trackers could not verify the high volumes passing through Hormuz claimed by the Trump administration, the Wall Street Journal reported on August 24. Gaps in AIS, the location signal ships send out, trips with the signal turned off, and loadings outside the Strait made checks hard.
September data cleared up part of the dispute. More barrels moved. More barrels skipped the narrow passage entirely. Gulf producers resumed transit through Hormuz by October 5, according to Reuters. Then attacks on shipping resurged, putting that recovery at risk, according to Wall Street Journal reporting on October 5.
Oil prices fell about 2% on September 25 amid hopes for a truce between the United States and Iran, according to Reuters. Reports in early October that China had halted fuel exports coincided with a 4% jump in oil prices, according to Reuters.
Products take the strain
A shortage of refining capacity created bottlenecks across the energy market in early October, according to Reuters. Think of crude as raw ingredients and refineries as kitchens. Oil can take a detour. The cooking step cannot.
Strain in diesel-type fuels showed up well before October. In July, gasoline and diesel markets signaled a fuel supply crunch despite relatively calm crude oil prices, according to Reuters. That split between crude and fuels lasted into autumn.
Several shutdowns and government steps piled on. Ukrainian attacks on Russian oil refineries compounded the global diesel shortage in 2026, according to OilPrice. Russia, a top exporter of diesel, banned fuel exports through October 2026, contributing to tight global diesel inventories, according to Reuters. A possible U.S. ban on diesel exports was under discussion in late September, according to Reuters.
Chokepoint arithmetic
Hormuz sits between Oman and Iran, according to the EIA. The U.S. Energy Information Administration identifies it as the world's most important oil transit chokepoint, according to the EIA. Flow averaged 20 million barrels per day in 2024, or about 20% of global petroleum liquids, according to the EIA. Flow averaged 21 million barrels per day in both 2022 and 2018, or about 21% of global petroleum liquids consumption in each year.
An estimated 89% of the crude oil and condensate that moved through Hormuz went to Asian markets in the first half of 2025, according to the EIA.
The broader context here is a market with two parts. One is Hormuz transit and bypass use. The other is follow-on logistics: refinery runs, product export licenses, clean tanker availability. Flat price, the basic price for crude itself, can rise on flow headlines and on fuel-export rules. Crude recovery alone does not fix fuel shortages. Fuel shortages can lift prices even when crude supply looks okay. That is why filling the car or heating a home can stay costly. Freight, insurance and refinery choices in Asia carry most of that extra cost.
In my view, it helps to separate the two risks. Strait risk is on-or-off and headline driven. Attacks, truce talks, rerouting. Product risk builds up over time. Lost Russian runs, export bans, thin cooking capacity. The first moves short-term price swings. The second keeps near-term diesel costly, a state called backwardation, and supports refining margins, the profit from turning crude into fuel, while crude supply rebuilds. Until that cooking capacity returns to normal, Middle East export volumes will tell only half the story.
