Fuel budgets across Europe have taken a beating this year, and the pain has not landed evenly. A fleet running routes between Marseille and Barcelona is looking at a meaningfully different cost structure than one operating purely within Catalonia, even though both are exposed to the same underlying oil market pressures. For logistics planners trying to build a defensible 2025 fuel budget, understanding the regional spread matters as much as understanding the national average.
The Spread Across Europe: France vs Spain
Pump prices rose sharply from January into the spring peak in both countries, but the size of the jump and the current pullback differ by region and by fuel type.
France: Paris Region and the South
In Île-de-France, diesel opened the year averaging €1.69 and climbed to a peak of €2.25, a 33% increase. It has since eased slightly to €2.22, still well above where the year started. Gasoline followed a gentler curve, moving from a €1.72 January average to a €2.03 peak (up 18%), and now sits at €2.02.
Provence-Alpes-Côte d'Azur told a similar story with a sharper diesel move. Diesel there started at €1.66 in January, peaked at €2.28 (a 37% jump, the steepest of the four regions covered here), and has come down only modestly to €2.25. Gasoline in the south tracked almost identically to the Paris region: €1.72 in January, €2.03 at peak, €2.02 now.
The pattern across both French regions is consistent: diesel moved harder and faster than gasoline, and neither fuel has given back much of its gain since the peak.
Spain: Catalonia and Andalusia
Spain started the year at meaningfully lower absolute price levels than France, but the percentage swings were comparable, and in Andalusia's case, prices are still climbing rather than retreating.
Catalonia's diesel averaged €1.37 in January, hit a peak of €1.82 (up 32%), and has actually ticked up further to €1.83, the only regional diesel figure here that sits above its stated peak. Gasoline in Catalonia moved from €1.44 to a €1.86 peak (up 30%) and now stands at €1.88, again edging past the earlier high.
Andalusia shows the same directional pattern. Diesel rose from a €1.40 January average to a €1.84 peak (up 32%) and is now at €1.85. Gasoline was comparatively restrained, up from €1.45 to a €1.69 peak (a 17% rise, the smallest move in this set), and has since crept to €1.71.
The takeaway for planners running Iberian routes: unlike France, where prices have plateaued or softened slightly off their highs, Spanish pump prices have kept inching upward past their earlier peaks. That is a different risk profile and it deserves different planning assumptions.
Why the Swings Happened
None of this occurred in a vacuum. Oil markets have stayed structurally tight through the year, and one closely watched energy research group continues to expect oil in the region of $100 through the second half of this year and into 2027, arguing that recent price swings have not resolved the underlying supply tightness. That kind of outlook matters for planners because it suggests the volatility fleets have experienced in 2025 is not a one-off shock that simply reverts to January levels. It may be closer to a new baseline with continued swings around it.
Geopolitical risk has amplified the picture. Tension around the Strait of Hormuz, a chokepoint through which a large share of the world's seaborne oil passes, has kept traders on edge for months, even as recent signs of a potential deescalation have pushed bond yields down in European trading on hopes the strait could reopen more freely. Fuel markets tend to price in that risk well before any resolution is confirmed, which helps explain why diesel and gasoline costs jumped so quickly in the spring even before any actual supply disruption materialized.
On the infrastructure side, there have been moves to strengthen European refining and logistics capacity that could matter for regional price stability over time. Poland's ORLEN, for example, recently opened a new transshipment terminal at its Gdansk refinery with capacity to handle 1.8 million metric tons of cargo a year, removing a layer of intermediate transport for crude and refined products. Infrastructure investments like this will not undo near-term volatility, but they are a reminder that European refining capacity and logistics are actively being reshaped, which could influence regional price differentials over the next few years.
Broader market conditions add another layer of context. Wall Street has reported surging profits and bankers are reportedly positioning for outsized bonuses this year, a sign that volatility itself has become a profit center for trading desks even as it becomes a cost headache for everyone who actually has to buy fuel to move goods. Volatility rewards traders and punishes budgets. That asymmetry is exactly why fixed-cost planning tools have become more relevant for fleets this year.
What This Means for Logistics Planners
A few practical implications follow from the regional data.
First, national averages hide meaningful regional risk. A planner budgeting off a single French or Spanish national figure could be underestimating costs in Provence-Alpes-Côte d'Azur, where diesel spiked hardest, or underestimating ongoing upward pressure in Catalonia and Andalusia, where prices have not yet peaked in the same way France's have.
Second, diesel and gasoline have decoupled. In every region covered here, diesel moved further than gasoline on a percentage basis. Fleets running mixed diesel and gasoline vehicles should budget the two fuels separately rather than applying a blended assumption, since applying gasoline's milder trend to diesel spend would understate exposure significantly.
Third, cross-border routing changes the calculus. A route that touches both France and Spain now carries a wider band of possible fuel cost outcomes than it did in January, simply because the two countries are moving on different trajectories at the moment. Planners routing through both should stress-test budgets against the higher-volatility legs, not the average of the two.
Building Budget Certainty Into Route Planning
None of this is arguing for guesswork. Regional price data like the figures above should feed directly into route and contract planning: know which corridors carry the most exposure, know whether diesel or gasoline dominates your consumption on those corridors, and revisit assumptions monthly rather than quarterly while the market stays this active.
This is also where a fixed-price fuel supply agreement earns its place in a planner's toolkit. FuelAnchor works by locking in a maximum price per gallon for the term of the agreement, so if pump prices in a region like Provence-Alpes-Côte d'Azur keep drifting upward, a fleet already under an agreement has already answered the question of what fuel will cost for that period. It does not try to predict where oil markets go next. It simply removes that question from the budget entirely, which matters more when regional prices are diverging the way France's and Spain's currently are.
A Practical Checklist for Cross-Border Fleets
Before finalizing next quarter's fuel budget, planners running multi-region European routes should:
- Break out diesel and gasoline spend separately by region rather than blending them into one national or continental figure.
- Flag any corridor touching Provence-Alpes-Côte d'Azur or Île-de-France as diesel-sensitive, given the size of the moves seen there.
- Flag any corridor touching Catalonia or Andalusia as still-rising rather than peaked, and budget accordingly.
- Revisit the budget monthly while oil market tightness and Strait of Hormuz risk remain unresolved.
- Compare the cost of leaving fuel spend exposed to further swings against the cost of locking in a maximum price for the routes carrying the most volume.
Pull the regional numbers for your own routes this week and see how they compare to the figures above. If the gap between your busiest corridor and the national average surprises you, that is the number to plan around, not the headline figure.