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Market Briefing · LegaFund Research · 27 April 2026

Europe's Diesel Supply: How acute the Iran conflict could become in the short term

Europe is structurally dependent on imported middle distillates[3],[5]. Russian product is sanctioned, India is shipping less[3], Saudi routing is geopolitically exposed[4]. If the Strait of Hormuz cannot be reliably transited, diesel becomes problematic — not via Brent first, but via missing product barrels[1],[9].

Short-term risk: high

Data as of: April 2026 · Author: LegaFund AG, Research Desk · Sources at the end

+15-20%
Wholesale base case[1],[6]
+70-90%
Wholesale bear case[1],[5],[9]
3.20-3.70
DE pump bear case €/L[7],[8]
>50%
Imports with Gulf exposure[4],[5]

Executive Summary

A blanket diesel blackout is unlikely. A very expensive, nervous market with regional bottlenecks is realistic.

The market should not first be observed when the pump reacts. Early indicators sit in wholesale, in product flows and in insurance premiums.

0-10 days
Wholesale price shock: ICE LSGO crack and diesel differentials move first; freight and war-risk premiums rise[1],[5],[9]
high
10-30 days
Delayed pass-through to the pump, regional shortages possible, ARA stock draw accelerates[6],[7],[8]
high
30+ days
State releases, prioritisation or allocation rules become plausible; Asia pulls middle distillates[2],[5]
high in bear case

Risk chain

From the Persian Gulf to the pump in Stuttgart

01
Iran conflict
War, mine, drone and insurance risk
02
Sea lanes
Hormuz, Oman, Bab el-Mandeb, Suez
03
Asia outbids
Diesel and jet margins pull barrels east
04
Europe replaces
US, Canada, Mediterranean at a premium
05
The pump
Wholesale stress arrives with a delay

Scenarios

Two paths, one shared symptom: tight middle distillates

Base case

Expensive but manageable

  • Hormuz partly open, high war-risk premiums[1],[9]
  • Diesel available; US and Mediterranean flows smooth supply[3],[4]
  • Wholesale +15-20%, DE pump 2.60-2.75 €/L[6],[7]
Bear case

Product scarcity, not just a crude shock

  • Repeated closures, insurers withdraw cover[1],[9]
  • Asia outbids Europe for middle distillates[5]
  • Wholesale +70-90%, DE pump 3.20-3.70 €/L[5],[7],[8]

Wholesale

What wholesale shows first: diesel reacts faster than Brent

Indexed European diesel/gasoil wholesale price. Spot = 100. Modelled ranges, not point forecasts.

Model based on IEA, Reuters, Wood Mackenzie and Argus data. The crack spread is the dominant driver, not the nominal Brent level.

Pump

What ultimately lands at the forecourt

Taxes are fixed; margin and inventory smooth volatility. Pass-through from wholesale is not 1:1 — but in the bear case it bites.

Germany[7]
Diesel €/L
Start: 2.43-2.45 €/L
3.20-3.70 €/L in bear case
EU average[8]
Diesel €/L
Start: ~2.02 €/L
2.75-3.25 €/L in bear case

Watchlist

Six indicators that move before the pump does

Watch wholesale, inventories, import flows and insurance premiums — the pump is always the lagging indicator.

ARA gasoil stocks[6]
15-16 Mio. bbl
falling
ARA gasoil imports[6]
255-284 kb/d
below prior month
US diesel to EU[3]
336-410 kb/d
key buffer
India to EU[3]
~26 kb/d
sharp drop
Saudi share EU/UK[4]
~29% arrivals
largest supplier
Hormuz flows[1],[9]
20 → 3.8 mb/d
largest disruption per IEA

Bottom line

Diesel is the tighter link — not crude

Once sea lanes turn unreliable, Europe competes not only for crude but for finished product barrels. Diesel is the harder one to replace at short notice.[5]

In the base case the impact is mostly a price shock. In the bear case it can become a physical product shortage — with peaks above 3 EUR/L at the pump.[7],[8]

For decision-makers the early-warning set is: ICE gasoil crack, ARA stocks, EU/UK arrivals, war-risk premiums. When several flip together, the pump is just the lagging indicator.[3],[4],[6]

Sources9 references · last reviewed 27 April 2026
  1. [1]IEA, Oil Market Report April 2026, April 2026 — Disruption framing, middle distillate highs
  2. [2]EIA, Press release 04/07/2026: Hormuz closure & production outlook, 7 April 2026 — Hormuz as central driver of the EIA outlook
  3. [3]Reuters, Global diesel flows further reshuffle on EU sanctions, discounted Russian exports, 23 February 2026 — US diesel to EU 336-410 kb/d (Jan), India 26 kb/d
  4. [4]Argus Media, EU, UK diesel imports from Mideast, India fall in April, April figures, Vortexa/Argus — Saudi Arabia ~29% of EU/UK arrivals; Yanbu rerouting
  5. [5]Wood Mackenzie, Strait of Hormuz disruption: a perfect storm for European middle distillates, March 2026 — >50% of European middle distillate imports potentially exposed
  6. [6]Insights Global / IndexBox, ARA Gasoil & Fuel Oil Inventories (March/April 2026), April 2026 — ARA gasoil ~15.7-16.1m bbl; imports 255-284 kb/d
  7. [7]ADAC, Diesel in March 2026 most expensive on record, April 2026 — Germany: March 2.164 €/L; 5 Apr all-time high 2.447 €/L
  8. [8]fuel-prices.eu, EU Fuel Prices, 13 April 2026, 13 April 2026 — EU diesel average ~2.02 €/L; spreads NL 2.59 / DE 2.43 / Malta 1.21
  9. [9]Reuters, World faces largest-ever oil supply disruption on Middle East war, IEA says, 12 March 2026 — Hormuz flows from ~20 to ~3.8 mb/d
Methodology & disclaimer

Wholesale and pump trajectories are modelled ranges based on publicly available data. They do not assume a particular outcome of the conflict, nor a price forecast. Real prices are additionally shaped by taxes, FX and national stock/price rules.

This publication is for information only and does not constitute investment advice, an offer or a recommendation.

© 2026 LegaFund AG · Research

Europe's Diesel Supply: How Acute the Iran Conflict Could Become in the Short Term | LegaFund