Brent crude futures surged more than 8% to top $102 a barrel after the United States announced a blockade of Iranian ports starting Monday, reigniting fears of a prolonged disruption to global energy supplies and sending U.S. equity futures tumbling.
The dramatic price reversal suggests investors are pricing in a more durable energy shock as hopes for a lasting U.S.-Iran ceasefire fade. VanEck Associates Corp. said the market action is a concentrated "re-pricing" of geopolitical risk, similar to how investors previously absorbed tariff threats.
The international benchmark, Brent crude, rose about 8% to $102 a barrel, while West Texas Intermediate crude climbed 8% to $104 a barrel. The move erased most of the previous week's 11% loss, which came after a fragile ceasefire was announced. The risk-off tone spread to equity markets, with S&P 500 futures falling 1% and Nasdaq 100 futures declining 1.15% in early trading.
The blockade threatens to completely seal the Strait of Hormuz, a chokepoint for a fifth of the world’s oil trade that has been effectively controlled by Iran since the conflict began. Analysts warn the impact could be severe, with John Paisie, president of Stratas Advisors, projecting that Brent prices could reach $190 a barrel if the strait remains shut. The inflationary impact is also a major concern. "We’re going to start seeing that inflationary pressure... think about everything you buy at a retail, big-box store," Karen Young, a senior fellow at the Middle East Institute, told CNN.
Hormuz Remains Choke Point
The U.S. Central Command stated the blockade would apply to all vessels entering or leaving Iranian ports, though it would permit transit between other countries in the region. Even before the announcement, ship traffic through the strait was already down to less than 10% of normal volumes, according to ship tracking data.
Tehran has capitalized on the situation by charging passage fees and has warned it will respond forcefully to any military presence. Iran’s Islamic Revolutionary Guard Corps warned Sunday that any military vessels approaching the strait “will be dealt with harshly and decisively,” according to Iran’s semi-official Fars News.
Supply Damage Deepens
The conflict has already inflicted significant damage on regional energy infrastructure, compounding supply fears. Recent attacks on Saudi Arabian energy facilities have cut the kingdom’s oil production capacity by around 600,000 barrels per day, according to the state-run Saudi Press Agency.
Across the Gulf, an estimated 2.4 million barrels per day of oil refining capacity have been knocked offline since the conflict began nearly six weeks ago, according to a JPMorgan assessment. The combination of direct supply cuts and the escalating blockade points to sustained high energy prices and heightened inflationary pressure on the global economy.
This article is for informational purposes only and does not constitute investment advice.