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 July 2025, Bulgaria's jet fuel supply was 24 kt: 89% from its own refineries, with imports mainly from Serbia (7%); tracing one step back, no single crude origin reaches 5% of it, and 97% cannot be traced.

The numbers as a table
Reported: where Bulgaria's jet fuel came from
FromToTonnesShareHow we know
Bulgaria (own refineries)Bulgaria: jet fuel supply21,53188.8%ReportedEurostat nrg_cb_oilm (refinery output)
SerbiaBulgaria: jet fuel supply1,6086.6%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
RomaniaBulgaria: jet fuel supply1,1104.6%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
Estimate: the crude oil behind each supplier's fuel
FromToTonnesShareHow we know
Bulgaria: crude origin not reportedBulgaria (own refineries)20,90297.1%UnknownThe supplying country's statistics did not say where part of its crude came from.
Serbia: no crude dataSerbia1,608100.0%UnknownWe hold no crude import statistics for the supplying country, and we do not assume what its refineries run on.
Bulgaria: crude not from importsBulgaria (own refineries)6292.9%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.
KazakhstanRomania54549.1%EstimatedEstimate: Romania's jet fuel to Bulgaria split by Romania's crude-import mix over 2025-05 to 2025-07. Confidence: medium.
Romania: crude not from importsRomania26924.2%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.
AzerbaijanRomania13011.7%EstimatedEstimate: Romania's jet fuel to Bulgaria split by Romania's crude-import mix over 2025-05 to 2025-07. Confidence: medium.
LibyaRomania625.6%EstimatedEstimate: Romania's jet fuel to Bulgaria split by Romania's crude-import mix over 2025-05 to 2025-07. Confidence: medium.
NorwayRomania322.9%EstimatedEstimate: Romania's jet fuel to Bulgaria split by Romania's crude-import mix over 2025-05 to 2025-07. Confidence: medium.
GuyanaRomania282.6%EstimatedEstimate: Romania's jet fuel to Bulgaria split by Romania's crude-import mix over 2025-05 to 2025-07. Confidence: medium.
Côte d’IvoireRomania272.5%EstimatedEstimate: Romania's jet fuel to Bulgaria split by Romania's crude-import mix over 2025-05 to 2025-07. Confidence: medium.
Saudi ArabiaRomania161.4%EstimatedEstimate: Romania's jet fuel to Bulgaria split by Romania's crude-import mix over 2025-05 to 2025-07. Confidence: medium.
Source & method
Source
EurostatInferred · medium
Period 2025-07 (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: Bulgaria’s supply of jet fuel in 2025-07, in tonnes of fuel. Only the middle-to-right flows are reported figures.

Month: 2025-07 (requested). Crude mixes are pooled over 2025-05 to 2025-07.

Fuel that cannot be traced, and the reason

  • Bulgaria: crude origin not reported (20,902 t): The supplying country's statistics did not say where part of its crude came from.
  • Serbia: no crude data (1,608 t): We hold no crude import statistics for the supplying country, and we do not assume what its refineries run on.
  • Bulgaria: crude not from imports (629 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.
  • Romania: crude not from imports (269 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.

Bulgaria: country page