HighVI Energy Politics & Supply Security26 October 2026, Monday
Russian diesel output climbs but the export surplus misses the pledges
Industry sources cited by Reuters put Russian diesel output at 160,000 tonnes a day in early October, climbing towards 180,000 tonnes once quotas were issued. With domestic demand at 140,000 tonnes, the daily surplus left for export stands at 40,000 tonnes.
The numbers tell the supply story. Russian diesel output fell from 175,000 tonnes a day in September to 160,000 tonnes in early October, then rose towards 180,000 tonnes after export quotas were issued in mid-October. Domestic demand typically eases to 140,000 tonnes a day in October. That leaves a surplus for export of at least 40,000 tonnes a day, or a little over one million tonnes a month. Between 200,000 and 300,000 tonnes of that goes to neighbouring countries under intergovernmental agreements. The diesel export ban in force since August is not expected to be lifted; quotas set the volume.
The commitments are larger than the surplus. The US deal announced on 9 October promised more than 300,000 tonnes of diesel at first, then 500,000 tonnes in November and one million tonnes after that. A further 3 million tonnes is under discussion, depending on the state of the refineries. The US Treasury granted a six-month exemption for Russian fuel. The arithmetic does not work. Once obligations to neighbouring countries are deducted, the exportable monthly volume falls to a band of 700,000 to 800,000 tonnes. The one million tonne tranche alone swallows a full month.
The threshold lies in production. Kyiv resumed strikes on refineries on 15 October after a three-day pause, and sources say repairing the existing damage will take months. If output drops back to 160,000 tonnes a day, the surplus for export halves and the tranche schedule slips; capacity, not the contract, is the binding factor. Goldman Sachs calculates that 800,000 tonnes of extra Russian diesel lowers US Gulf and European wholesale prices by only 1 to 2 dollars a barrel. Brent closed at 115.81 dollars on 26 October, and US diesel stood at 6.28 dollars a gallon on 19 October.
Talay assessment
Bottom line
The limit on the deal is distillation capacity, not politics. Even with Russian diesel output recovering to 180,000 tonnes, the 40,000 tonnes a day left for export barely covers the tranche schedule already promised. With refinery repairs running into months, a fall back to 160,000 tonnes would halve the exportable surplus and move the commitment from November into December.
Likely effects
- Global diesel supplyNegativeWeeks
An exportable volume of 700,000 to 800,000 tonnes a month falls below the one million tonne tranche that was promised.
- Refinery capacityNegative1–6 months
Output slid from 175,000 tonnes in September to 160,000 tonnes; UAV damage that takes months to repair pulls the ceiling down.
- Product pricesUncertainWeeks
On Goldman's calculation, 800,000 tonnes of extra supply cuts wholesale diesel by only 1 to 2 dollars a barrel.
Possibilities, ranked
- 1Tranches slip50%
The November tranche ships only in part and the remaining volume is pushed into December.
Watch: Cumulative shipped tonnage disclosed at the end of November
- 2Quotas widen30%
Domestic demand falls further, the government raises the quota and the schedule holds.
Watch: A new export quota decision from the Russian government
- 3Output falls again20%
Fresh refinery damage takes output below 160,000 tonnes a day and exports stop in practice.
Watch: Daily diesel output falling below 170,000 tonnes
Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.
Market reaction
Indicators affected
- Russian diesel output▲ 180,000 t/d
- Surplus left for export▲ 40,000 t/d