Global diesel exports fell by 700,000 barrels a day from a year earlier in September, and the agency does not expect stocks to be rebuilt before the second half of next year. Heating oil futures settled near $4.93 a gallon, the equivalent of about $207 a barrel.
Tuesday's jump in U.S. diesel futures did not fade by the close. On Wednesday the International Energy Agency explained why the market may not let it.
New York Harbor ultra-low-sulfur diesel futures settled at $4.9344 a gallon on Tuesday, up about 4.5% from $4.7232 on Monday, and edged up to $4.9465 in early Wednesday trading. Brent crude settled down about 0.9% on the same day. At 42 gallons to the barrel, the settlement equals about $207 a barrel, roughly $102 above Brent.
The agency's diagnosis
In its October Oil Market Report, the IEA said global gasoil and diesel markets tightened in the third quarter, a season when they usually loosen, after heavier-than-normal inventory draws in the second quarter. The result, it said, has "deprived global gasoil markets of crucial stock cover ahead of the peak winter demand season."
The supply loss is concentrated in two places. Russia and the Middle East together shipped 1.3 million barrels a day less diesel, net, in September than a year before. More cargoes from the U.S. and China filled only part of that hole, leaving world exports about 700,000 barrels a day short of last year.
Prices show the strain. In the middle of September, Singapore's wholesale diesel price crossed $200 a barrel, and European and U.S. prices set records near $220, by the agency's count. They have come down since, yet diesel benchmarks still cost almost twice as much as crude.
Why the deficit lasts
The IEA expects higher refinery output to return the diesel market to surplus in the first quarter of 2027. That surplus, it said, will not be enough. "The gasoil market balance will remain tight well into 2027 and is dependent on a recovery of product supply from the Middle East," the report said. "Failing this, further demand reductions and the heavy economic costs these will entail may be needed to balance markets."
The broader cushion is also thin. By the end of September, observed oil inventories worldwide had fallen 509 million barrels short of where they stood before the war, and stocks held on land were at levels not seen since at least 2016. The agency now expects world oil demand to fall by 2.6 million barrels a day this year, to 102.4 million.
The policy fixes
Washington's decision to ease restrictions on Russian diesel is unlikely to change the balance much, the IEA said, because Russia's export constraint is a lack of working refinery capacity rather than a shortage of permission. Freight is also working against importers. Diesel margins for European refiners fell from about $100 a barrel to about $60 by early October as shipping costs for crude rose, and the agency warned that delivered diesel prices in Europe, Africa and Latin America could climb again.
The inflation link
Fuel is already in the Federal Reserve's sights. Boston Fed President Susan Collins said Tuesday she expects overall and core inflation to run above target in the coming months, "given the recent jump in prices of refined energy products like jet and diesel fuel, and home heating oil." Gasoline averages $4.34 a gallon nationally, against $3.08 a year ago, according to AAA.
Market implications
One reading is that the worst has passed. Wholesale prices are below their September records, refinery runs are recovering into year-end, and the agency projects a surplus by the first quarter.
A second reading is that the market has no buffer left for surprises. Stocks are being drawn going into winter, the recovery depends on Gulf product exports the IEA itself calls uncertain, and the agency says demand may have to fall further to close the gap.
What to watch
Weekly U.S. distillate inventory data, the IEA Governing Board's meeting on Thursday and the energy component of Wednesday's consumer-price report are the next reads on how much of the squeeze reaches consumers.