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 June 2026, Slovakia's petrol supply was 126 kt: 73% from its own refineries, with imports mainly from the United Kingdom (13%), Czechia (8%) and Austria (6%); tracing one step back, the crude behind it is estimated to come mainly from the Russia (42%), the United Kingdom (8%) and Switzerland (7%), and 17% cannot be traced.
Country
Russia53 kt (est. 42%)United Kingdom10 kt (est. 8%)Switzerland9.0 kt (est. 7%)Saudi Arabia6.9 kt (est. 5%)Kazakhstan6.4 kt (est. 5%)Libya5.3 kt (est. 4%)Norway4.7 kt (est. 4%)Other crude origins8.8 kt (est. 7%)United Kingdom: no crude data16 kt (13%)Slovakia: crude origin not reported5.0 kt (4%)Smaller flows: crude not from imports0.9 kt (<1%)Slovakia (own refineries)93 kt (73%)United Kingdom16 kt (13%)Czechia10 kt (8%)Austria7.5 kt (6%)Hungary0.3 kt (<1%)Slovakia: petrol supply126 kt (100%)
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Crude origin (estimate)
- Colour = where it went:
- Slovakia (own refineries)
- United Kingdom
- Czechia
- Austria
- Hungary
- Russia53 kt (est. 42%)
- United Kingdom10 kt (est. 8%)
- Switzerland9.0 kt (est. 7%)
- Saudi Arabia6.9 kt (est. 5%)
- Kazakhstan6.4 kt (est. 5%)
- Libya5.3 kt (est. 4%)
- Norway4.7 kt (est. 4%)
- Other crude origins8.8 kt (est. 7%)
- United Kingdom: no crude data16 kt (13%)
- Slovakia: crude origin not reported5.0 kt (4%)
- Smaller flows: crude not from imports0.9 kt (<1%)
Where the fuel was refined
- 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 |
|---|---|---|---|---|
| Slovakia (own refineries) | Slovakia: petrol supply | 92,600 | 73.3% | ReportedEurostat nrg_cb_oilm (refinery output) |
| United Kingdom | Slovakia: petrol supply | 15,959 | 12.6% | ReportedEurostat nrg_ti_oilm (imports by country of origin, energy basis) |
| Czechia | Slovakia: petrol supply | 10,110 | 8.0% | ReportedEurostat nrg_ti_oilm (imports by country of origin, energy basis) |
| Austria | Slovakia: petrol supply | 7,488 | 5.9% | ReportedEurostat nrg_ti_oilm (imports by country of origin, energy basis) |
| Hungary | Slovakia: petrol supply | 259 | 0.2% | ReportedEurostat nrg_ti_oilm (imports by country of origin, energy basis) |
| From | To | Tonnes | Share | How we know |
|---|---|---|---|---|
| Russia | Slovakia (own refineries) | 52,805 | 57.0% | EstimatedEstimate: Slovakia's petrol to Slovakia split by Slovakia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| United Kingdom: no crude data | United Kingdom | 15,959 | 100.0% | UnknownWe hold no crude import statistics for the supplying country, and we do not assume what its refineries run on. |
| United Kingdom | Slovakia (own refineries) | 10,406 | 11.2% | EstimatedEstimate: Slovakia's petrol to Slovakia split by Slovakia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Switzerland | Slovakia (own refineries) | 9,018 | 9.7% | EstimatedEstimate: Slovakia's petrol to Slovakia split by Slovakia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Slovakia: crude origin not reported | Slovakia (own refineries) | 5,043 | 5.4% | UnknownThe supplying country's statistics did not say where part of its crude came from. |
| Kazakhstan | Austria | 4,623 | 61.7% | EstimatedEstimate: Austria's petrol to Slovakia split by Austria's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Libya | Slovakia (own refineries) | 4,418 | 4.8% | EstimatedEstimate: Slovakia's petrol to Slovakia split by Slovakia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Norway | Slovakia (own refineries) | 4,080 | 4.4% | EstimatedEstimate: Slovakia's petrol to Slovakia split by Slovakia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Other crude origins | Czechia | 3,652 | 36.1% | EstimatedEstimate: Czechia's petrol to Slovakia split by Czechia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Other crude origins | Slovakia (own refineries) | 3,480 | 3.8% | EstimatedEstimate: Slovakia's petrol to Slovakia split by Slovakia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Saudi Arabia | Czechia | 3,425 | 33.9% | EstimatedEstimate: Czechia's petrol to Slovakia split by Czechia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Saudi Arabia | Slovakia (own refineries) | 3,350 | 3.6% | EstimatedEstimate: Slovakia's petrol to Slovakia split by Slovakia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Kazakhstan | Czechia | 1,816 | 18.0% | EstimatedEstimate: Czechia's petrol to Slovakia split by Czechia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Other crude origins | Austria | 1,679 | 22.4% | EstimatedEstimate: Austria's petrol to Slovakia split by Austria's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Libya | Austria | 767 | 10.2% | EstimatedEstimate: Austria's petrol to Slovakia split by Austria's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Norway | Czechia | 662 | 6.6% | EstimatedEstimate: Czechia's petrol to Slovakia split by Czechia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Smaller flows: crude not from imports | Czechia | 555 | 5.5% | 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. |
| Smaller flows: crude not from imports | Austria | 296 | 4.0% | 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. |
| Russia | Hungary | 154 | 59.5% | EstimatedEstimate: Hungary's petrol to Slovakia split by Hungary's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Saudi Arabia | Austria | 123 | 1.6% | EstimatedEstimate: Austria's petrol to Slovakia split by Austria's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Libya | Hungary | 70 | 27.1% | EstimatedEstimate: Hungary's petrol to Slovakia split by Hungary's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Smaller flows: crude not from imports | Hungary | 21 | 8.0% | 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. |
| Kazakhstan | Hungary | 6 | 2.3% | EstimatedEstimate: Hungary's petrol to Slovakia split by Hungary's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Other crude origins | Hungary | 6 | 2.2% | EstimatedEstimate: Hungary's petrol to Slovakia split by Hungary's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Norway | Hungary | 2 | 0.9% | EstimatedEstimate: Hungary's petrol to Slovakia split by Hungary's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
Source & method
Source Period 2026-06 (month)Updated 2026-09-26 13:30 UTCConfidenceMediumMethodologyDownload CSV
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
- 2026-06 (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 countries whose refineries made it. Right: Slovakia’s supply of petrol in 2026-06, in tonnes of fuel. Only the middle-to-right flows are reported figures.
Month: 2026-06 (latest month all EU member states reported). Crude mixes are pooled over 2026-04 to 2026-06.
Fuel that cannot be traced, and the reason
- United Kingdom: no crude data (15,959 t): We hold no crude import statistics for the supplying country, and we do not assume what its refineries run on.
- Slovakia: crude origin not reported (5,043 t): The supplying country's statistics did not say where part of its crude came from.
- Smaller flows: crude not from imports (872 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; fuel re-exported through a supplier is not followed further.
- Widths are tonnes of this fuel, not tonnes of crude oil: a refinery makes several products from each tonne of crude.