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 December 2025, Czechia's road diesel supply was 534 kt: 53% from its own refineries, with imports mainly from Germany (40%); tracing one step back, the crude behind it is estimated to come mainly from Azerbaijan (20%), Norway (18%) and Kazakhstan (18%), and 7% cannot be traced.

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  • Reported (solid)
  • Our arithmetic on reported figures (dotted)
  • Estimated crude behind the fuel (dashed)
  • Cannot be traced (hatched)

Norway → Czechia

Crude behind this road diesel, an estimate (Dec 2025)

96.9 thousand tonnes

est. 18% of Czechia's road diesel supply

less than 0.1 kt reported97 kt estimated

Inferred · medium

Last shipped from

  • Czechia (own refineries)62 kt (est. 64%)
  • Germany34 kt (est. 35%)
  • Poland0.7 kt (est. <1%)

Source: Fuel Origin fuel-chain look-through (docs/HORMUZ_METHOD.md section 8), built on Eurostat nrg_ti_oilm and nrg_cb_oilm

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The numbers as a table
Reported: where Czechia's road diesel came from
FromToTonnesShareHow we know
Czechia (own refineries)Czechia: road diesel supply285,00053.4%ReportedEurostat nrg_cb_oilm (refinery output)
GermanyCzechia: road diesel supply215,00040.3%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
SlovakiaCzechia: road diesel supply16,0003.0%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
AustriaCzechia: road diesel supply15,0002.8%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
PolandCzechia: road diesel supply2,0000.4%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
HungaryCzechia: road diesel supply1,0000.2%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
Estimate: the crude oil behind each supplier's fuel
FromToTonnesShareHow we know
AzerbaijanCzechia (own refineries)99,90435.1%EstimatedEstimate: Czechia's road diesel to Czechia split by Czechia's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
NorwayCzechia (own refineries)62,07221.8%EstimatedEstimate: Czechia's road diesel to Czechia split by Czechia's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Saudi ArabiaCzechia (own refineries)58,56920.6%EstimatedEstimate: Czechia's road diesel to Czechia split by Czechia's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
KazakhstanCzechia (own refineries)52,54418.4%EstimatedEstimate: Czechia's road diesel to Czechia split by Czechia's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
NorwayGermany34,10015.9%EstimatedEstimate: Germany's road diesel to Czechia split by Germany's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
KazakhstanGermany33,47415.6%EstimatedEstimate: Germany's road diesel to Czechia split by Germany's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Other crude originsGermany33,02515.4%EstimatedEstimate: Germany's road diesel to Czechia split by Germany's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
LibyaGermany32,28815.0%EstimatedEstimate: Germany's road diesel to Czechia split by Germany's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
United StatesGermany30,62514.2%EstimatedEstimate: Germany's road diesel to Czechia split by Germany's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
United KingdomGermany23,15010.8%EstimatedEstimate: Germany's road diesel to Czechia split by Germany's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Germany: crude origin not reportedGermany20,7549.7%UnknownThe supplying country's statistics did not say where part of its crude came from.
Czechia: crude not from importsCzechia (own refineries)11,9104.2%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.
Other crude originsSlovakia11,90274.4%EstimatedEstimate: Slovakia's road diesel to Czechia split by Slovakia's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
KazakhstanAustria8,99360.0%EstimatedEstimate: Austria's road diesel to Czechia split by Austria's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
AzerbaijanGermany4,1201.9%EstimatedEstimate: Germany's road diesel to Czechia split by Germany's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Smaller flows: crude not from importsGermany2,6491.2%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.
Other crude originsAustria2,61117.4%EstimatedEstimate: Austria's road diesel to Czechia split by Austria's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Saudi ArabiaSlovakia2,43515.2%EstimatedEstimate: Slovakia's road diesel to Czechia split by Slovakia's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
LibyaAustria1,92612.8%EstimatedEstimate: Austria's road diesel to Czechia split by Austria's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Saudi ArabiaAustria9736.5%EstimatedEstimate: Austria's road diesel to Czechia split by Austria's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Saudi ArabiaPoland94047.0%EstimatedEstimate: Poland's road diesel to Czechia split by Poland's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Smaller flows: crude not from importsSlovakia8815.5%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 ArabiaGermany8160.4%EstimatedEstimate: Germany's road diesel to Czechia split by Germany's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
AzerbaijanSlovakia7824.9%EstimatedEstimate: Slovakia's road diesel to Czechia split by Slovakia's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Other crude originsHungary70070.0%EstimatedEstimate: Hungary's road diesel to Czechia split by Hungary's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
NorwayPoland69734.8%EstimatedEstimate: Poland's road diesel to Czechia split by Poland's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Smaller flows: crude not from importsAustria3512.3%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.
Smaller flows: crude not from importsHungary25725.7%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.
AzerbaijanAustria1461.0%EstimatedEstimate: Austria's road diesel to Czechia split by Austria's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Smaller flows: crude not from importsPoland1417.1%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.
Other crude originsPoland1145.7%EstimatedEstimate: Poland's road diesel to Czechia split by Poland's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
United KingdomPoland814.0%EstimatedEstimate: Poland's road diesel to Czechia split by Poland's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
KazakhstanHungary434.3%EstimatedEstimate: Hungary's road diesel to Czechia split by Hungary's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
United StatesPoland271.4%EstimatedEstimate: Poland's road diesel to Czechia split by Poland's crude-import mix over 2025-10 to 2025-12. Confidence: medium.
Source & method
Source
EurostatInferred · medium
Period 2025-12 (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: Czechia’s supply of road diesel in 2025-12, in tonnes of fuel. Only the middle-to-right flows are reported figures.

Month: 2025-12 (requested). Crude mixes are pooled over 2025-10 to 2025-12.

Fuel that cannot be traced, and the reason

  • Germany: crude origin not reported (20,754 t): The supplying country's statistics did not say where part of its crude came from.
  • Czechia: crude not from imports (11,910 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 (4,278 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.

Czechia: country page