8 September 2026
Executive Summary
Global diesel supplies are expected to remain exceptionally tight through the coming winter, creating a significant cost and operational risk for road freight, agriculture, construction, manufacturing and backup power.
Industry executives speaking at the APPEC energy conference warned that disruption to refining capacity in Russia and the Middle East has removed substantial volumes of diesel production from the global market.
Reuters reports that approximately 4 million barrels per day of refining capacity associated with diesel production has been affected by conflict and disruption.
Inventories are extremely tight.
At the same time, many US refineries are already operating close to full capacity, limiting the ability of the market to rapidly replace lost supply.
Diesel refining margins have consequently risen to extreme levels.
The risk is therefore different from yesterday’s marine-fuel alert.
That alert concerned fuel oil used predominantly by shipping.
Today’s issue affects the fuel powering much of the land-based logistics system.
UK Impact
UK businesses should consider exposure through:
- Road haulage.
- Agriculture.
- Construction.
- Warehousing.
- Delivery fleets.
- Manufacturing.
- Backup generators.
- Refrigerated logistics.
- Rail.
- Heavy equipment.
A sustained increase in diesel costs can feed rapidly into transport prices.
Hauliers may impose fuel surcharges.
Suppliers may pass increased transport costs to customers.
Businesses operating fixed-price logistics contracts may experience margin pressure where fuel costs cannot be passed through.
The winter timing is also important.
Diesel and related middle distillates compete with heating demand in several markets.
Global Impact
The present tightness illustrates an important difference between crude-oil availability and refined-product availability.
The world can have sufficient crude oil while still experiencing shortages of particular fuels.
A barrel of crude does not automatically become diesel.
It must pass through appropriate refinery capacity.
When refineries are:
- Damaged.
- Offline.
- Under maintenance.
- Operating at capacity.
- Geographically inaccessible.
the availability of crude becomes less relevant.
The bottleneck moves downstream into refining.
This creates consequences across global logistics because trucks, agricultural machinery, mining equipment and industrial generators are heavily dependent upon diesel.
Our View
Businesses should stress-test winter operations against both higher diesel prices and temporary supply constraints.
Companies should ask:
- How much diesel do operations consume?
- Are fuel prices fixed contractually?
- Can hauliers apply automatic surcharges?
- Are surcharges capped?
- Is fuel purchased centrally?
- Are alternative suppliers available?
- How much onsite storage exists?
- Can additional fuel be stored safely and legally?
- Which operations are genuinely critical?
- Can routes be consolidated?
- Can deliveries be scheduled more efficiently?
- Could rail replace some road movements?
- Are backup generators dependent upon diesel?
- How long can emergency fuel stocks last?
- Have suppliers stress-tested their own transport costs?
- How would a prolonged price spike affect margins?
The commercial lesson is important:
energy security is not simply about having enough crude oil.
Businesses need the correct fuel, in the correct location, when they actually need it.
Risk Indicator: HIGH – DIESEL, TRANSPORT & WINTER LOGISTICS
Does This Risk Affect Your Business?
Invictus Risk Solutions helps businesses find practical solutions to insurance, risk and commercial challenges.
From individual businesses to major international organisations, risk is our business.
TALK TO INVICTUS →Disclaimer
The information contained within these Market Alerts is provided for general market awareness and informational purposes only. It does not constitute financial, legal, investment, regulatory or insurance advice. Whilst every effort has been made to ensure accuracy at the time of publication using multiple reputable and independently verified sources, geopolitical events, legislation, regulation and market conditions may change rapidly. Readers should obtain appropriate professional advice before acting upon any information contained herein.
Invictus Risk Solutions LLP – Helping organisations stay ahead of emerging risks through informed insight and independent analysis.