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 April 2026, Croatia's petrol supply was 88 kt: 88% from its own refineries, with imports from Slovenia (12%); tracing one step back, the crude behind it is estimated to come mainly from Azerbaijan (51%), Libya (15%) and Kazakhstan (13%), and 12% cannot be traced.
Tap a country to follow its flows. Tap it again, or use the close button, to clear.
Crude origin (estimate)
- Colour = where it went:
- Croatia (own refineries)
- Slovenia
Last shipped from
- Reported (solid)
- Our arithmetic on reported figures (dotted)
- Estimated crude behind the fuel (dashed)
- Cannot be traced (hatched)
- Reported (solid)
- Our arithmetic on reported figures (dotted)
- Estimated crude behind the fuel (dashed)
- Cannot be traced (hatched)
The numbers as a table
| From | To | Tonnes | Share | How we know |
|---|---|---|---|---|
| Croatia (own refineries) | Croatia: petrol supply | 77,000 | 88.0% | ReportedEurostat nrg_cb_oilm (refinery output) |
| Slovenia | Croatia: petrol supply | 10,500 | 12.0% | ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis) |
| From | To | Tonnes | Share | How we know |
|---|---|---|---|---|
| Azerbaijan | Croatia (own refineries) | 44,949 | 58.4% | EstimatedEstimate: Croatia's petrol to Croatia split by Croatia's crude-import mix over 2026-02 to 2026-04. Confidence: medium. |
| Libya | Croatia (own refineries) | 12,801 | 16.6% | EstimatedEstimate: Croatia's petrol to Croatia split by Croatia's crude-import mix over 2026-02 to 2026-04. Confidence: medium. |
| Kazakhstan | Croatia (own refineries) | 11,124 | 14.4% | EstimatedEstimate: Croatia's petrol to Croatia split by Croatia's crude-import mix over 2026-02 to 2026-04. Confidence: medium. |
| Slovenia: no refinery | Slovenia | 10,500 | 100.0% | UnknownThe supplying country has no crude oil refinery (a cited confirmed zero), so the fuel was made elsewhere and passed through. We look back one step only. |
| Guyana | Croatia (own refineries) | 8,126 | 10.6% | EstimatedEstimate: Croatia's petrol to Croatia split by Croatia's crude-import mix over 2026-02 to 2026-04. Confidence: medium. |
Source & method
EurostatInferred · medium
Provenance
Inferred · mediumMedium- Publisher
- Eurostat
- Dataset id
- Imports of oil and petroleum products by partner country, monthly data (refined products)nrg_ti_oilmeurostat_nrg_ti_oilm_products
- Period
- 2026-04 (month)
- Retrieved
- 2026-09-23 12:11 UTC
- Type
- Inferred · medium
- Transformation
- none applied - stored exactly as published
- Licence
- Commission Decision 2011/833/EU - reuse authorised provided the source is acknowledged
- Supplier -> country links are published figures (OFFICIAL; the unattributed remainder and any 'Other suppliers' sum are CALCULATED).
- Crude -> supplier links are an estimate (INFERRED) from each supplier's crude-import mix; the published crude imports behind each one are in links[].evidence.
- Untraceable volumes are explicit UNKNOWN nodes with their cause. They are never spread over the traced origins.
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: Croatia’s supply of petrol in 2026-04, in tonnes of fuel. Only the middle-to-right flows are reported figures.
Countries without a crude refinery can appear under "Last shipped from": the importing country's statistics record where the fuel arrived from. It was refined elsewhere and either sold on or passed through that country's terminals; the statistics do not say which, or where it was refined.
Month: 2026-04 (requested). Crude mixes are pooled over 2026-02 to 2026-04.
Fuel that cannot be traced, and the reason
- Slovenia: no refinery (10,500 t): The supplying country has no crude oil refinery (a cited confirmed zero), so the fuel was made elsewhere and passed through. We look back one step only.
- 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.