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 November 2025, Slovakia's jet fuel supply was 7.5 kt: 84% from its own refineries, with imports from the Netherlands (16%); tracing one step back, the crude behind it is estimated to come mainly from the Russia (57%), Hungary (9%) and Saudi Arabia (8%), and 2% cannot be traced.

The numbers as a table
Reported: where Slovakia's jet fuel came from
FromToTonnesShareHow we know
Slovakia (own refineries)Slovakia: jet fuel supply6,28884.3%ReportedEurostat nrg_cb_oilm (refinery output)
NetherlandsSlovakia: jet fuel supply1,16815.7%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
Estimate: the crude oil behind each supplier's fuel
FromToTonnesShareHow we know
RussiaSlovakia (own refineries)4,25367.6%EstimatedEstimate: Slovakia's jet fuel to Slovakia split by Slovakia's crude-import mix over 2025-09 to 2025-11. Confidence: medium.
HungarySlovakia (own refineries)65710.5%EstimatedEstimate: Slovakia's jet fuel to Slovakia split by Slovakia's crude-import mix over 2025-09 to 2025-11. Confidence: medium.
Saudi ArabiaSlovakia (own refineries)63210.1%EstimatedEstimate: Slovakia's jet fuel to Slovakia split by Slovakia's crude-import mix over 2025-09 to 2025-11. Confidence: medium.
Other crude originsNetherlands58049.7%EstimatedEstimate: Netherlands's jet fuel to Slovakia split by Netherlands's crude-import mix over 2025-09 to 2025-11. Confidence: medium.
AzerbaijanSlovakia (own refineries)5248.3%EstimatedEstimate: Slovakia's jet fuel to Slovakia split by Slovakia's crude-import mix over 2025-09 to 2025-11. Confidence: medium.
United StatesNetherlands26122.3%EstimatedEstimate: Netherlands's jet fuel to Slovakia split by Netherlands's crude-import mix over 2025-09 to 2025-11. Confidence: medium.
UkraineSlovakia (own refineries)2223.5%EstimatedEstimate: Slovakia's jet fuel to Slovakia split by Slovakia's crude-import mix over 2025-09 to 2025-11. Confidence: medium.
NorwayNetherlands21018.0%EstimatedEstimate: Netherlands's jet fuel to Slovakia split by Netherlands's crude-import mix over 2025-09 to 2025-11. Confidence: medium.
Netherlands: crude origin not reportedNetherlands756.5%UnknownThe supplying country's statistics did not say where part of its crude came from.
Smaller flows: crude not from importsNetherlands423.6%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 2025-11 (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: Slovakia’s supply of jet fuel in 2025-11, in tonnes of fuel. Only the middle-to-right flows are reported figures.

Month: 2025-11 (requested). Crude mixes are pooled over 2025-09 to 2025-11.

Fuel that cannot be traced, and the reason

  • Netherlands: crude origin not reported (75 t): The supplying country's statistics did not say where part of its crude came from.
  • Smaller flows: crude not from imports (42 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.

Slovakia: country page