US-Iran fighting spikes oil prices
Analysis based on 15 articles · First reported Sep 01, 2026 · Last updated Sep 01, 2026
The renewed US-Iran hostilities have heightened fears of prolonged disruptions to oil flows through the Strait of Hormuz, a critical chokepoint for global crude, driving oil prices to multi-week highs. The spike in crude and diesel prices, along with record refining margins, is likely to increase inflationary pressures and negatively impact energy-dependent sectors and consumers.
On September 1, 2026, oil prices surged more than $4 a barrel to a five-week high as renewed fighting between the United States and Iran raised fears of supply disruptions from the Middle East. The U.S. launched new air strikes on Iranian targets, specifically Islamic Revolutionary Guard Corps (IRGC) facilities, following recent attacks on commercial shipping in the Strait of Hormuz and on American service members. Iran had effectively closed the Strait of Hormuz to shipping and warned it would prevent oil exports from the Gulf. U.S. President Donald Trump threatened to hit Iran 'hard,' and Treasury Secretary Scott Bessent warned of imminent new sanctions. Brent crude settled at $94.65 a barrel, up 4.6%, while WTI settled at $90.22, up 5.2%. Diesel prices also spiked, with U.S. diesel futures reaching a 52-month high and the diesel crack spread hitting a record around $107 a barrel. Separately, Russian air attacks killed 12 people in Kyiv, marking the sixth straight day of strikes on the Ukrainian capital, adding to supply concerns. The market also awaited weekly U.S. oil inventory reports from the American Petroleum Institute and the United States — Energy Information Administration.
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