• Strait of Hormuz vessel traffic fell 19% last week, with daily crossings dropping from 120 to 25.
  • Freight rates remain nearly double pre-conflict levels despite a recent dip, signaling ongoing disruption.
  • Refinery damage has tightened fuel supplies, boosting refining margins and petrochemical profits as global crude inventories decline.

Traffic Plunges at Key Chokepoint

Commercial vessel traffic through the Strait of Hormuz fell 19% last week, with daily transits dropping to around 25 from 120 before the conflict, according to people familiar with maritime data. The sharp slowdown underscores the impact of heightened geopolitical risks on the world's most critical oil chokepoint, through which about 20% of global crude flows.

"The drop is significant but not yet a full blockade," a shipping analyst said, noting that some vessels are rerouting or waiting for security assurances. Freight rates have dipped but still sit at nearly twice pre-conflict levels, indicating that shipping economics remain strained even as traffic slows.

Refinery Damage Tightens Fuel Supplies

The disruption has extended beyond transit. Refinery damage in the region has tightened fuel supplies, pushing refining margins higher and boosting petrochemical profits, according to industry data. Global crude inventories continue to slide, supporting near-term price volatility. "Without a de-escalation, we could see further inventory draws and margin expansion," a refinery executive said, speaking on condition of anonymity.

The situation has forced some traders to seek alternative routes and supply sources, though options remain limited. The Strait's closure or prolonged disruption could have cascading effects on energy markets, including higher consumer fuel costs and inflationary pressures in major importing regions.

Market and Geopolitical Watch

Attention now turns to daily transit updates and any official maritime notices. Analysts are watching for potential ceasefire or diplomatic breakthroughs that could restore flow, but current conditions remain fragile. "The market is pricing in a sustained risk premium," a commodities strategist said, adding that without a deal to secure the strait, energy markets will remain on edge.

Shipping companies and insurers are reassessing risk, with some increasing war-risk premiums. The situation also highlights the broader vulnerability of global energy supply chains to geopolitical flashpoints.

Correction: An earlier version of this article misstated the percentage decline in daily transits. The correct figure is 19%, not 25%. This has been updated.