Hormuz tensions lift oil
U.S. threats of a naval blockade in the Strait of Hormuz and failed Iran talks have pushed oil prices sharply higher this week, with reports of a more than 7% jump to about $103.66 a barrel ( ). Commentators note the strait carries roughly 20% of world oil flows and the move has already fed into market pricing and safe‑haven dynamics ( ).
Oil prices jumped on Monday after President Donald Trump said the United States Navy would begin blockading traffic tied to Iranian ports in the Strait of Hormuz. (bloomberg.com; cnn.com) Bloomberg reported Brent crude rose as much as 9.1% and later traded near $102 a barrel on April 13, while other market reports put the move at more than 7% to about $103.66. (bloomberg.com; reuters.com) The latest escalation followed failed talks with Iran and a White House threat to stop vessels entering or leaving Iranian ports, a step that traders treated as a fresh supply risk in the Persian Gulf. (bbc.com; bloomberg.com) The Strait of Hormuz is the narrow sea lane between Iran and Oman that links the Persian Gulf to the open ocean. In the first half of 2025, about 20.9 million barrels a day moved through it, equal to roughly 20% of global petroleum liquids consumption and about one-quarter of seaborne oil trade. (eia.gov; eia.gov) That traffic matters most to Asia. Bloomberg reported the blockade threat risked piling pressure on energy-dependent economies including India, Japan, South Korea and China, which rely heavily on Gulf crude moving through the strait. (bloomberg.com; eia.gov) Markets quickly priced the move beyond oil. Bloomberg reported United States 10-year Treasury yields rose to about 4.33% on April 13 as traders cut expectations for Federal Reserve rate cuts, and Reuters reported gold drew safe-haven demand even as a stronger dollar capped gains. (bloomberg.com; reuters.com) Iran signaled it would resist the move. Iranian officials said Tehran had offered “forward-looking initiatives” in talks, while state-linked warnings carried by major outlets said military action around the waterway could draw a “strong and forceful response.” (bbc.com; msn.com) United States military officials framed the order more narrowly than a full closure of the channel. Central Command said the blockade would be enforced against vessels entering or departing Iranian ports, and vessels avoiding those ports would still be allowed to use the strait. (cbsnews.com; usatoday.com) Oil traders have been through weeks of Hormuz shocks already. The United States Energy Information Administration said there are few alternative routes for moving Gulf oil out of the strait if traffic is disrupted, which is why even a partial blockade can lift prices before any barrels are actually lost. (eia.gov; eia.gov) For now, the market is trading the threat that flows through the world’s busiest oil chokepoint could tighten again. As long as the blockade order and Iran standoff remain unresolved on April 13, crude is carrying a war-risk premium. (bloomberg.com; eia.gov)
