Diesel Prices Jump 34¢/gal as Mideast Conflict Disrupts Oil Supply

134/gallon this week—the second-largest increase since geopolitical tensions escalated in early March. This sharp jump reflects cascading supply disruptions across critical Middle Eastern chokepoints, particularly the Strait of Hormuz, where tanker exports have plummeted to approximately ten ships over a three-day period. 119/gallon, signals that retail prices are likely lagging actual commodity market movements, suggesting further surcharges lie ahead for carriers and shippers. For supply chain professionals, this represents a structural challenge rather than a temporary fluctuation.

Experts point to historic crack spreads—the margin between crude and refined products—as evidence of genuine product shortage rather than crude scarcity. This distinction is critical: while crude inventories may stabilize, the loss of refining capacity in the Persian Gulf region combined with export blockades means diesel availability, not just price, is becoming the constraint. Carriers that depend on fuel surcharge pass-through mechanisms face margin compression if shippers resist increases, while those with locked-in energy costs gain competitive advantage. The geopolitical dimension compounds operational uncertainty.

Potential Houthi attacks on Saudi export infrastructure at Yanbu and the Red Sea represent not just price risk but supply continuity risk. Organizations should reassess fuel hedging strategies, revisit supplier diversification beyond Middle Eastern sources, and prepare contingency plans for further ULSD cost escalation or availability rationing.