Diesel crack spreads settled at $102.20 a barrel on Aug. 18, the first triple-digit refining margin on record, after five supply disruptions converged on global distillate markets.
"Every commodity is dirt plus diesel," Jeff Currie, co-chairman of Abaxx Markets and former head of commodities research at Goldman Sachs, said. "The pass-through to trucking, food, and producer prices has only just begun."
The settlement, confirmed by Reuters, followed an intraday peak of $102.20 on Aug. 17 and topped the prior all-time record of about $89 a barrel set in October 2022 by roughly 15 percent. U.S. diesel inventories entering late August stood at their lowest since 1996, a 30-year trough, while global refinery runs have fallen about 5 million barrels a day after Ukrainian strikes on Russian plants, attacks on Middle East facilities and chronic underinvestment, Currie said.
The margin, four to six times the normal $20-to-$40 range, threatens to push heating costs and freight inflation higher into winter 2026-27. The next test is whether the U.S.-Iran conflict disrupts Strait of Hormuz flows, through which 20 to 21 million barrels of oil and products transit daily.
Five Shocks, One Record
The record reflects simultaneous outages across Libya, Saudi Arabia and Russia, plus the Hormuz constraint. Ukrainian drone campaigns have degraded Russian refining capacity, prompting temporary export restrictions on diesel. Houthi strikes have repeatedly hit Saudi Aramco's Jazan complex, and drone attacks have cut Libyan capacity. U.S. refiners, running record export volumes, have depleted domestic buffers that offered no cushion.
The Refiner Incentive Paradox
At margins above $100 a barrel, the financial case for deferring scheduled maintenance becomes overwhelming, raising the probability of unplanned outages at major Gulf Coast facilities. An outage during a period of 30-year-low inventories could trigger a secondary price shock, analysts warn.
What's Next
Currie, who has built positions in gold, silver and agricultural products, said the supply bottlenecks exceed the capacity of any policy tool in Washington. He cited an 81 percent probability of a strong El Niño before year-end, Rhine River water levels at historic lows and Panama Canal draft limits cut to 47.5 feet. "The system has no redundancy left," he said.
This article is for informational purposes only and does not constitute investment advice.