Fuel Prices Surge Despite Retailer Promises

Fuel prices in France are rising despite retailer promises of cuts. Discover why petrol and diesel costs keep climbing in 2026.

Fuel prices in France are climbing again—despite bold promises from major retailers to bring costs down. For drivers already feeling the squeeze, the reality at the pump tells a very different story.

So what’s really going on? And why can’t supermarkets deliver the savings they promised?

The Promise of Cheaper Fuel—And What Happened Next

In mid-March 2026, major French retailers made headlines with ambitious pledges:

E.Leclerc, Intermarché, and Système U promised price cuts of up to €0.30 per litre
TotalEnergies capped prices at €1.99 for petrol and €2.09 for diesel
The French government stepped in, urging action to ease pressure on households

But within days, those promises began to unravel.

By March 25:

Diesel averaged €2.21 per litre
SP95 reached €2.02
SP95-E10 climbed to €1.99
Prices jumped 5–6% in just one week

Even E.Leclerc’s CEO admitted the commitment was unrealistic, citing unpredictable market conditions.

Why Fuel Prices Keep Rising

razor-thin retailer margins

Supermarkets don’t actually have much room to cut prices:

Fuel margins are typically under 1% for large retailers
Independent stations earn just €0.04–€0.08 per litre
Selling fuel cheaply is often a loss leader to attract customers

In short, retailers were never in full control of pricing.

refining costs are surging

Another major factor is the spike in refining margins:

Diesel refining margins doubled from ~€0.13 in 2025 to ~€0.26 in early 2026
This increase happens before fuel even reaches the pump

That means even if crude oil prices fall, final fuel prices can stay high.

taxes dominate the price

Fuel in France is heavily taxed:

Around 60% of the pump price is tax (TICPE + VAT)
The government has ruled out tax cuts—for now

This leaves very little flexibility to reduce prices without state intervention.

Global Tensions Driving the Market

The biggest driver behind recent price volatility is geopolitics.

the middle east factor

Ongoing conflict in the Middle East has disrupted supply chains
The Strait of Hormuz—handling about 20% of global oil—has faced blockages
Markets reacted quickly, pushing oil prices sharply higher

oil price volatility

Brent crude peaked above $119 per barrel in March
Prices later dropped to around $88—but pump prices lag behind

This lag effect means consumers don’t see immediate relief when oil prices fall.

What Happens Next?

There’s growing uncertainty about where fuel prices go from here:

TotalEnergies may revise its price cap in April
Continued geopolitical instability could trigger further spikes
Without tax cuts, structural price relief remains unlikely

For drivers in France—and across Europe—the situation highlights a harsh truth: fuel prices are shaped far more by global forces than supermarket promises.