Renewed US-Iran hostilities have dashed hopes for a diplomatic resolution, locking away a fifth of the world's energy supply.
More than 11 million barrels per day of Persian Gulf oil and condensate production and 80 million metric tons of liquefied natural gas — roughly 20% of global supply — remain inaccessible as fresh US airstrikes near Bandar Abbas shattered tentative peace hopes, according to data from Wood Mackenzie.
"The longer disruption persists, the greater the impact on energy prices, industrial activity, trade flows and global economic growth," said Peter Martin, head of economics at Wood Mackenzie.
Brent crude bounced back toward the mid-$90s a barrel Thursday after a brief decline triggered by premature peace-deal optimism. The 10-year US Treasury yield climbed 4 basis points to just above 4.5%, while the 30-year bond held above the psychologically significant 5% level for most of May. The dollar edged higher against a basket of peers, pushing the yen toward ¥160 — a threshold that has historically prompted intervention by Japan's Ministry of Finance.
The inflationary transmission from elevated energy prices is now the dominant macro theme heading into the second half of 2026. US April personal consumption expenditures data due later Thursday is expected to show headline inflation at 3.8% year over year — a three-year high — with core at 3.3%, well above the Federal Reserve's 2% target. Fed Governor Lisa Cook said Wednesday that inflation is "heading in the wrong direction" and that she stands ready to raise rates if deterioration persists.
Iran's state television earlier this week circulated a draft framework that would have restored commercial shipping through the Strait of Hormuz within a month in exchange for a US withdrawal of military forces and the lifting of a naval blockade. The White House dismissed the report, and President Trump asserted that no single nation would govern access to what he described as international waters. Fresh US airstrikes targeting an Iranian drone operation in Bandar Abbas and the interception of four Iranian attack drones aimed at a commercial vessel have since extinguished any near-term diplomatic path.
The last time a chokepoint of this magnitude was disrupted — during the 2019 attacks on Saudi Aramco's Abqaiq and Khurais facilities — oil prices surged 15% in a single session, though the impact proved temporary. The current closure is more severe in both scale and duration. Wood Mackenzie's analysis suggests a prolonged shutdown would become "far more than an energy crisis," cascading through industrial supply chains and trade flows globally.
Inflation Pressures Intensify as Central Banks Turn Hawkish
The energy shock is feeding directly into inflation expectations. Consensus forecasts for the April PCE reading point to the highest headline print in three years, with the core measure remaining more than a full percentage point above the Fed's target. Vice Chair Philip Jefferson, speaking in Tokyo on Thursday, acknowledged the labor market's resilience but emphasized that the focus "must remain squarely on returning inflation to 2%."
BMI Chief Economist Cedric Chehab warned that markets may be underestimating how persistent these pressures could prove, given the lack of a clear off-ramp in the Strait of Hormuz standoff. The longer-dated oil futures curve has remained stubbornly elevated throughout the recent volatility, signaling that the market's base case is prolonged disruption rather than imminent resolution.
For engineering and construction firms, the conflict is generating a parallel growth story. McDermott International, a major contractor in the region, has flagged expanding opportunities in infrastructure rebuilding as the conflict reshapes energy infrastructure needs across the Persian Gulf.
This article is for informational purposes only and does not constitute investment advice.