Diesel Falls 15¢ Post-Iran Peace Deal; IEA Warns of Summer Oil Deficits

S. 06/gallon—the lowest level since March 16, when military conflict in the region first disrupted markets. However, the International Energy Agency's latest forecast suggests this price decline may be temporary. 6 million b/d from pre-war levels, while demand has only declined by 5 million b/d.

This supply-demand mismatch means global inventory drawdowns are accelerating, with the IEA warning that observable oil stocks could reach their lowest seasonal levels since 2022 by late summer. For supply chain professionals managing transportation costs, this creates a dual-risk scenario. The near-term optimism from lower diesel prices masks structural constraints: the Strait of Hormuz remains partially constrained due to mine-clearing operations, and tanker operators are reluctant to return to pre-war shipping lanes until security and fee arrangements are fully resolved. 1 million b/d deficit through August, suggesting downward pressure on supply could resurface within months.

Meanwhile, demand destruction in Asia (particularly China, Japan, and South Korea) has been severe, indicating potential softening in manufacturing activity that could affect procurement planning. Longer-term, the IEA forecasts a supply surplus by 2027, signaling that current fuel surcharge escalations may not persist. Organizations should monitor inventory position, hedging strategies, and modal mix decisions carefully—what appears to be relief today may reflect temporary inventory liquidation rather than sustainable supply growth. The geopolitical dimension compounds uncertainty: full normalization of Persian Gulf exports will take months or longer, and any escalation of tensions could quickly reverse recent price declines.