Oil Prices Soar Above $103 as US Imposes Naval Blockade on Iran

Oil prices experienced a significant surge following US President Donald Trump's announcement of a naval blockade on Iran. Brent crude, the international benchmark, rose more than 8 percent to top $103 a barrel on Sunday.

The blockade, which was later clarified by US Central Command to only affect vessels traveling to and from Iran, is set to take effect on Monday at 10am Eastern Time (14:00 GMT). This move has heightened uncertainty in global financial markets, with major stock markets in Asia opening lower on Monday.

The Strait of Hormuz, a critical conduit for about one-fifth of global oil and natural gas supplies, has been a focal point of tensions between the US and Iran. Despite a fragile truce between the two nations, only 17 vessels crossed the strait on Saturday, down from roughly 130 daily transits before the conflict.

The blockade threat has stoked fears of supply disruptions, contributing to the rise in oil prices. This development comes after oil prices had fluctuated significantly in recent weeks, topping $119 last month before falling below $92 a barrel last week.

Global markets are closely watching the situation, with US stock futures and Asian markets experiencing declines. Japan's benchmark Nikkei 225 fell 0.9 percent, while South Korea's KOSPI dropped more than 1 percent.