Oil prices surged past $103 a barrel on Thursday after the United States announced a naval blockade of Iran, triggering a sharp decline in Asian stock markets and injecting fresh turmoil into global financial markets. The Brent crude benchmark rose by 6.2%, its steepest single-day gain since the 2022 Ukraine crisis, as traders braced for potential supply disruptions.
The White House confirmed the blockade in a late-night statement, citing Iran’s alleged violations of nuclear non-proliferation agreements. “This action is necessary to prevent further escalation,” a senior administration official told reporters on condition of anonymity. The move comes after weeks of failed diplomatic negotiations between Washington and Tehran.
Analysts at Goldman Sachs warned that oil could reach $120 a barrel if the blockade extends beyond two weeks. “We’re seeing classic risk-off behavior across commodities,” said energy strategist Michelle Zhou. Meanwhile, Japan’s Nikkei fell 2.3% and Hong Kong’s Hang Seng dropped 3.1% in early trading.
The Strait of Hormuz, through which 20% of global oil shipments pass, remains a critical flashpoint. Iranian officials have vowed to “respond decisively” to what they call an “act of economic warfare.” Pentagon sources indicate three carrier strike groups are now positioned in the Persian Gulf region.
Market watchers suggest the crisis could accelerate Europe’s transition to renewable energy, with EU energy ministers scheduled to meet Friday for emergency talks. “This isn’t 1973,” noted a Brussels-based policy analyst. “Alternative energy capacity and strategic reserves give markets more resilience now.”