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US Strikes Iran’s Nuclear Sites, Oil Spikes as Markets Slide

Investors are bracing for Tehran’s potential closure of the Strait of Hormuz after parliament backed shutting the vital waterway in retaliation to US strikes.

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A map showing the Strait of Hormuz and Iran is seen behind a 3D printed oil pipeline in this illustration taken June 22, 2025. REUTERS/Dado Ruvic/Illustration

Overview

  • The United States launched precision airstrikes on Iran’s Fordow, Natanz and Isfahan nuclear facilities on June 22, using B-2 bombers and submarine-launched Tomahawk missiles to target uranium enrichment sites.
  • Brent crude rallied as much as 5.7% to $81.40 per barrel and West Texas Intermediate also jumped before paring gains, pushing oil to five-month highs.
  • Global equity futures slid, with Asian markets opening lower and US S&P 500 and Nasdaq futures down as investors sought safety.
  • The US dollar strengthened against major currencies, gaining ground on the yen and euro as traders priced in elevated geopolitical risk.
  • Iran’s foreign minister warned of “everlasting consequences,” and parliament voted to close the Strait of Hormuz, raising fears of disruptions to one-fifth of global oil flows.