Global oil prices spiked sharply while Asian stock markets retreated on Monday after the United States announced plans to blockade key shipping routes linked to Iran, escalating tensions in the already volatile energy market.
U.S. President Donald Trump confirmed the move following failed ceasefire talks between the U.S. and Iran in Pakistan. The proposed blockade targets vessels entering or leaving the strategically vital Strait of Hormuz—a corridor that handles a significant share of global oil shipments and has seen disruptions since the conflict intensified.
The U.S. military indicated that the blockade, covering Iranian ports, would take effect Monday, further tightening supply concerns in global energy markets.
Oil market reacts sharply
Oil prices extended their rally as fears of supply shortages deepened. Brent crude, the international benchmark, has surged from about $70 per barrel before the conflict to peaks above $119.
On Monday alone, U.S. crude jumped by 8.7 percent to $104.95 per barrel, while Brent crude rose 7.4 percent to $102.23, underscoring mounting pressure on global fuel markets.
Asian markets under pressure
Equity markets across Asia reacted negatively to the developments. Japan’s Nikkei 225 fell by 1.0 percent, while Australia’s S&P/ASX 200 declined 0.5 percent.
South Korea’s Kospi dropped 1.1 percent, Hong Kong’s Hang Seng slid nearly 1.5 percent, and China’s Shanghai Composite edged down 0.2 percent.
Analysts warn that uncertainty surrounding the conflict and energy supply disruptions could keep markets volatile in the near term.
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Volatility returns to global markets
The latest developments have reversed earlier optimism driven by ceasefire talks, which had briefly supported global equities. On Wall Street, the S&P 500 ended slightly lower after a volatile session, while the Dow Jones Industrial Average declined and the Nasdaq Composite posted modest gains.
Market watchers say rising oil prices remain a key risk, with potential ripple effects on inflation, trade, and economic growth worldwide. For now, attention remains fixed on the Strait of Hormuz, where any prolonged disruption could significantly reshape global energy flows and deepen financial market instability.
