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 March 2026, Portugal's road diesel supply was 380 kt: 74% from its own refineries, with imports mainly from Spain (23%); tracing one step back, the crude behind it is estimated to come mainly from Brazil (48%), Algeria (12%) and Nigeria (11%), and less than 1% cannot be traced.

The numbers as a table
Reported: where Portugal's road diesel came from
FromToTonnesShareHow we know
Portugal (own refineries)Portugal: road diesel supply279,11573.5%ReportedEurostat nrg_cb_oilm (refinery output)
SpainPortugal: road diesel supply85,68722.6%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
NetherlandsPortugal: road diesel supply14,8613.9%ReportedEurostat nrg_ti_oilm (imports by partner country, energy basis)
Estimate: the crude oil behind each supplier's fuel
FromToTonnesShareHow we know
BrazilPortugal (own refineries)173,61162.2%EstimatedEstimate: Portugal's road diesel to Portugal split by Portugal's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
AlgeriaPortugal (own refineries)39,48614.1%EstimatedEstimate: Portugal's road diesel to Portugal split by Portugal's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
Other crude originsSpain31,17936.4%EstimatedEstimate: Spain's road diesel to Portugal split by Spain's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
NigeriaPortugal (own refineries)29,65710.6%EstimatedEstimate: Portugal's road diesel to Portugal split by Portugal's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
United StatesPortugal (own refineries)21,1297.6%EstimatedEstimate: Portugal's road diesel to Portugal split by Portugal's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
AzerbaijanPortugal (own refineries)15,2325.5%EstimatedEstimate: Portugal's road diesel to Portugal split by Portugal's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
United StatesSpain11,24913.1%EstimatedEstimate: Spain's road diesel to Portugal split by Spain's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
LibyaSpain10,22711.9%EstimatedEstimate: Spain's road diesel to Portugal split by Spain's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
NigeriaSpain9,79811.4%EstimatedEstimate: Spain's road diesel to Portugal split by Spain's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
MexicoSpain9,47811.1%EstimatedEstimate: Spain's road diesel to Portugal split by Spain's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
BrazilSpain8,71810.2%EstimatedEstimate: Spain's road diesel to Portugal split by Spain's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
Other crude originsNetherlands8,12454.7%EstimatedEstimate: Netherlands's road diesel to Portugal split by Netherlands's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
AlgeriaSpain4,6245.4%EstimatedEstimate: Spain's road diesel to Portugal split by Spain's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
United StatesNetherlands3,35122.6%EstimatedEstimate: Netherlands's road diesel to Portugal split by Netherlands's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
Smaller flows: crude origin not reportedNetherlands1,1117.5%UnknownThe supplying country's statistics did not say where part of its crude came from.
NigeriaNetherlands1,0006.7%EstimatedEstimate: Netherlands's road diesel to Portugal split by Netherlands's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
BrazilNetherlands7555.1%EstimatedEstimate: Netherlands's road diesel to Portugal split by Netherlands's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
Smaller flows: crude not from importsSpain4140.5%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.
AlgeriaNetherlands2851.9%EstimatedEstimate: Netherlands's road diesel to Portugal split by Netherlands's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
MexicoNetherlands1110.7%EstimatedEstimate: Netherlands's road diesel to Portugal split by Netherlands's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
LibyaNetherlands980.7%EstimatedEstimate: Netherlands's road diesel to Portugal split by Netherlands's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
AzerbaijanNetherlands250.2%EstimatedEstimate: Netherlands's road diesel to Portugal split by Netherlands's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
Smaller flows: no crude dataUnited Kingdom22100.0%UnknownWe hold no crude import statistics for the supplying country, and we do not assume what its refineries run on.
Other crude originsFrance1437.1%EstimatedEstimate: France's road diesel to Portugal split by France's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
United StatesFrance1232.5%EstimatedEstimate: France's road diesel to Portugal split by France's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
NigeriaFrance512.3%EstimatedEstimate: France's road diesel to Portugal split by France's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
AlgeriaFrance25.9%EstimatedEstimate: France's road diesel to Portugal split by France's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
LibyaFrance25.9%EstimatedEstimate: France's road diesel to Portugal split by France's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
BrazilFrance24.4%EstimatedEstimate: France's road diesel to Portugal split by France's crude-import mix over 2026-01 to 2026-03. Confidence: medium.
Smaller flows: crude origin not reportedFrance01.1%UnknownThe supplying country's statistics did not say where part of its crude came from.
AzerbaijanFrance00.7%EstimatedEstimate: France's road diesel to Portugal split by France's crude-import mix over 2026-01 to 2026-03. Confidence: medium.

2 flows with a share under 0.1% are not listed here. They are still counted in every total and drawn in the diagram, and the CSV under Source & method lists every flow.

Source & method
Source
EurostatInferred · medium
Period 2026-03 (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: Portugal’s supply of road diesel in 2026-03, in tonnes of fuel. Only the middle-to-right flows are reported figures.

Month: 2026-03 (requested). Crude mixes are pooled over 2026-01 to 2026-03.

Fuel that cannot be traced, and the reason

  • Smaller flows: crude origin not reported (1,112 t): The supplying country's statistics did not say where part of its crude came from.
  • Smaller flows: crude not from imports (414 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: no crude data (22 t): We hold no crude import statistics for the supplying country, and we do not assume what its refineries run on.
  • 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.

Portugal: country page