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, Slovenia's jet fuel supply was 37 kt, all of it imported, mainly from Greece (76%) and Libya (22%); tracing one step back, the crude behind it is estimated to come mainly from Kazakhstan (19%), Iraq (13%) and Libya (11%), and 24% cannot be traced.
Country
Kazakhstan7.1 kt (est. 19%)Iraq4.7 kt (est. 13%)Libya4.2 kt (est. 11%)United States4.1 kt (est. 11%)Norway3.9 kt (est. 10%)Saudi Arabia1.5 kt (est. 4%)Guyana1.1 kt (est. 3%)Other crude origins1.7 kt (est. 5%)Libya: no crude data8.0 kt (22%)Greece: crude not from imports0.6 kt (2%)Smaller flows: crude not from imports0.2 kt (<1%)Greece28 kt (76%)Libya8.0 kt (22%)Croatia1.0 kt (3%)Slovenia: jet fuel supply37 kt (100%)
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Crude origin (estimate)
- Kazakhstan7.1 kt (est. 19%)
- Iraq4.7 kt (est. 13%)
- Libya4.2 kt (est. 11%)
- United States4.1 kt (est. 11%)
- Norway3.9 kt (est. 10%)
- Saudi Arabia1.5 kt (est. 4%)
- Guyana1.1 kt (est. 3%)
- Other crude origins1.7 kt (est. 5%)
- Libya: no crude data8.0 kt (22%)
- Greece: crude not from imports0.6 kt (2%)
- Smaller flows: crude not from imports0.2 kt (<1%)
Last shipped from
- Reported (solid)
- Our arithmetic on reported figures (dotted)
- Estimated crude behind the fuel (dashed)
- Cannot be traced (hatched)
Crude behind this jet fuel, an estimate (Jun 2026)
4.1 thousand tonnes
est. 11% of Slovenia's jet fuel supply
less than 0.1 kt reported4.1 kt estimated
Inferred · medium
Last shipped from
- Greece4.1 kt (est. 100%)
Source: Fuel Origin fuel-chain look-through (docs/HORMUZ_METHOD.md section 8), built on Eurostat nrg_ti_oilm and nrg_cb_oilm
- 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 |
|---|---|---|---|---|
| Greece | Slovenia: jet fuel supply | 28,000 | 75.7% | ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis) |
| Libya | Slovenia: jet fuel supply | 8,000 | 21.6% | ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis) |
| Croatia | Slovenia: jet fuel supply | 1,000 | 2.7% | ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis) |
| From | To | Tonnes | Share | How we know |
|---|---|---|---|---|
| Libya: no crude data | Libya | 8,000 | 100.0% | UnknownWe hold no crude import statistics for the supplying country, and we do not assume what its refineries run on. |
| Kazakhstan | Greece | 7,003 | 25.0% | EstimatedEstimate: Greece's jet fuel to Slovenia split by Greece's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Iraq | Greece | 4,715 | 16.8% | EstimatedEstimate: Greece's jet fuel to Slovenia split by Greece's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| United States | Greece | 4,077 | 14.6% | EstimatedEstimate: Greece's jet fuel to Slovenia split by Greece's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Libya | Greece | 4,056 | 14.5% | EstimatedEstimate: Greece's jet fuel to Slovenia split by Greece's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Norway | Greece | 3,867 | 13.8% | EstimatedEstimate: Greece's jet fuel to Slovenia split by Greece's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Other crude origins | Greece | 1,539 | 5.5% | EstimatedEstimate: Greece's jet fuel to Slovenia split by Greece's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Saudi Arabia | Greece | 1,526 | 5.4% | EstimatedEstimate: Greece's jet fuel to Slovenia split by Greece's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Guyana | Greece | 623 | 2.2% | EstimatedEstimate: Greece's jet fuel to Slovenia split by Greece's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Greece: crude not from imports | Greece | 593 | 2.1% | 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. |
| Guyana | Croatia | 448 | 44.8% | EstimatedEstimate: Croatia's jet fuel to Slovenia split by Croatia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Other crude origins | Croatia | 204 | 20.4% | EstimatedEstimate: Croatia's jet fuel to Slovenia split by Croatia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Smaller flows: crude not from imports | Croatia | 186 | 18.6% | 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. |
| Libya | Croatia | 100 | 10.0% | EstimatedEstimate: Croatia's jet fuel to Slovenia split by Croatia's crude-import mix over 2026-04 to 2026-06. Confidence: medium. |
| Kazakhstan | Croatia | 62 | 6.2% | EstimatedEstimate: Croatia's jet fuel to Slovenia split by Croatia'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 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: Slovenia’s supply of jet fuel in 2026-06, in tonnes of fuel. Only the middle-to-right flows are reported figures.
Month: 2026-06 (latest month that can be drawn, the month its country page shows). Crude mixes are pooled over 2026-04 to 2026-06.
Fuel that cannot be traced, and the reason
- Libya: no crude data (8,000 t): We hold no crude import statistics for the supplying country, and we do not assume what its refineries run on.
- Greece: crude not from imports (593 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 (186 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.