Fuel Origin

Flows

How oil reaches each country

Where the EU’s crude oil and fuel come from, as each member state reports its imports; every band’s width is proportional to tonnes.

In September 2025, Slovenia's petrol supply was 52 kt, all of it imported, mainly from Italy (54%), Croatia (33%) and the United Arab Emirates (10%); tracing one step back, the crude behind it is estimated to come mainly from Libya (27%), Azerbaijan (14%) and Kazakhstan (9%), and 24% cannot be traced.

The numbers as a table
Reported: where Slovenia's petrol came from
FromToTonnesShareHow we know
ItalySlovenia: petrol supply28,00053.8%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
CroatiaSlovenia: petrol supply17,00032.7%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
United Arab EmiratesSlovenia: petrol supply5,0009.6%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
HungarySlovenia: petrol supply2,0003.8%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
Estimate: the crude oil behind each supplier's fuel
FromToTonnesShareHow we know
LibyaCroatia7,51344.2%EstimatedEstimate: Croatia's petrol to Slovenia split by Croatia's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
LibyaItaly6,72624.0%EstimatedEstimate: Italy's petrol to Slovenia split by Italy's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
Other crude originsItaly5,22618.7%EstimatedEstimate: Italy's petrol to Slovenia split by Italy's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
United Arab Emirates: no crude dataUnited Arab Emirates5,000100.0%UnknownWe hold no crude import statistics for the supplying country, and we do not assume what its refineries run on.
Croatia: crude not from importsCroatia4,94729.1%UnknownThe refineries used more crude than the country imported (its own production or stocks). That part is not traced rather than being filled with the import mix.
AzerbaijanItaly4,23015.1%EstimatedEstimate: Italy's petrol to Slovenia split by Italy's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
AzerbaijanCroatia3,22619.0%EstimatedEstimate: Croatia's petrol to Slovenia split by Croatia's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
KazakhstanItaly2,98110.6%EstimatedEstimate: Italy's petrol to Slovenia split by Italy's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
United StatesItaly2,5279.0%EstimatedEstimate: Italy's petrol to Slovenia split by Italy's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
Italy: crude not from importsItaly2,2908.2%UnknownThe refineries used more crude than the country imported (its own production or stocks). That part is not traced rather than being filled with the import mix.
Saudi ArabiaItaly2,0677.4%EstimatedEstimate: Italy's petrol to Slovenia split by Italy's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
NigeriaItaly1,9537.0%EstimatedEstimate: Italy's petrol to Slovenia split by Italy's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
RussiaHungary1,43071.5%EstimatedEstimate: Hungary's petrol to Slovenia split by Hungary's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
KazakhstanCroatia1,3157.7%EstimatedEstimate: Croatia's petrol to Slovenia split by Croatia's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
KazakhstanHungary29714.9%EstimatedEstimate: Hungary's petrol to Slovenia split by Hungary's crude-import mix over 2025-07 to 2025-09. Confidence: medium.
Smaller flows: crude not from importsHungary27313.6%UnknownThe refineries used more crude than the country imported (its own production or stocks). That part is not traced rather than being filled with the import mix.
Source & method
Source
EurostatInferred · medium
Period 2025-09 (month)Updated 2026-09-26 13:30 UTCConfidenceMediumMethodologyDownload CSV

Left: the crude oil behind the fuel (an estimate). Middle: the country’s own refineries and the countries the fuel was last shipped from, which may be a trading hub rather than where it was refined; the estimate treats each as the refiner. Right: Slovenia’s supply of petrol in 2025-09, in tonnes of fuel. Only the middle-to-right flows are reported figures.

Month: 2025-09 (requested). Crude mixes are pooled over 2025-07 to 2025-09.

Fuel that cannot be traced, and the reason

  • United Arab Emirates: no crude data (5,000 t): We hold no crude import statistics for the supplying country, and we do not assume what its refineries run on.
  • Croatia: crude not from imports (4,947 t): The refineries used more crude than the country imported (its own production or stocks). That part is not traced rather than being filled with the import mix.
  • Italy: crude not from imports (2,290 t): The refineries used more crude than the country imported (its own production or stocks). That part is not traced rather than being filled with the import mix.
  • Smaller flows: crude not from imports (273 t): The refineries used more crude than the country imported (its own production or stocks). That part is not traced rather than being filled with the import mix.
  • Only the supplier -> country links are reported figures. The crude -> supplier links are an estimate: each supplier's fuel is split by that supplier's own crude-import mix over the latest three months.
  • Exports are assumed to be drawn from every source in proportion to its share of supply.
  • The chain looks back one country only. Imports are counted under the country the fuel was last shipped from; where that country has refineries, fuel that only passed through it is traced as if it had been refined there.
  • Widths are tonnes of this fuel, not tonnes of crude oil: a refinery makes several products from each tonne of crude.

Slovenia: country page