Portugal Fuel Prices 2026: Galp, low-cost stations, DGEG

Current fuel prices

Portuguese fuel prices sit slightly above the EU average, and meaningfully above Spanish prices on both petrol and diesel - a one-directional cross-border arbitrage rather than the split pattern that existed in prior years. Portugal’s domestic refiner Galp dominates the brand market with around 700 stations; competition comes from Repsol (Spanish), BP, Cepsa (Spanish) and the rapidly expanding Prio (Portuguese low-cost). Supermarket-attached stations from Intermarche, Auchan and Continente (Sonae) consistently undercut brand prices by 5-15 cents per litre.

Unlike Spain (Geoportal Gasolineras) or France (prix-carburants), Portugal does not have a free official live-price API for consumers; the DGEG (Direccao Geral de Energia e Geologia) publishes maximum recommended prices weekly via precoscombustiveis.pt, which is the closest official source.

Portugal vs neighbouring countries

Portugal compared to neighbouring countries (current national averages):

Refuelling strategy for visitors

The single best move in Portugal is refueling at a Prio, Repsol Easy or supermarket-attached station instead of brand Galp. On the A1, A2 and A6 motorways, every brand service area carries a 10-15 cent surcharge. The Spanish border arbitrage is real: both petrol and diesel are meaningfully cheaper in Spain, with the wider gap on diesel - if your route comes from or goes to Spain, fill both fuels on the Spanish side.

Costs for common routes

For a passenger car at 6 l/100 km. Multiply the litres by the diesel price in the table at the top of this page, which refreshes automatically:

For a foreign driver transiting through Portugal to Morocco (ferry Algeciras) or to Spain’s Andalusia region, the full length can be covered with two tanks of 50 litres. Fuel is measurably cheaper in Spain on both grades, so the smart pattern is: enter Portugal with a full tank from Spain, refuel again just before returning to Spain.

Portuguese fuel market: brands and market share

Portugal’s fuel market is dominated by Galp (formerly Petrogal, state-owned until 2007), which operates around 750 branded stations across the country. Second largest is Repsol (Spanish, 400 stations). International players like BP (300 stations) and Cepsa (200 stations) round out the branded market.

The discount segment is growing rapidly:

• Prio (Portuguese-owned, 300+ stations): dominant low-cost brand, 8-15 cents below branded stations
• Intermarche (French hypermarket chain, 80 stations): fuel at cost
• Continente (hypermarket-attached, 60 stations): fuel at cost
• Auchan (formerly Jumbo, 45 stations): fuel at cost

Practical pattern for foreign drivers: Prio near town centres or Intermarche/Continente attached to supermarkets save 8-15 cents per litre versus branded Galp or BP. On motorway service areas (areas de servico), all brands charge a 5-15 cent surcharge.

DGEG price transparency and precoscombustiveis.pt

Portugal has one of the most transparent fuel price systems in the EU. The Direccao-Geral de Energia e Geologia (DGEG) requires every fuel station to report prices twice daily (before 09:00 and 16:00) to the national database. This data feeds precoscombustiveis.pt, the official consumer-facing portal.

Features:

• Real-time station-level prices for all 3,200+ Portuguese stations
• Compare within radius (5-25 km configurable)
• Filter by brand, fuel type, price
• Route search (enter start-end, see cheapest along the way)
• Mobile-friendly, no login required
• English interface available since 2022

Alternative apps with same data: Combustiveis PT (iOS/Android free), GaspApp (community-focused), Google Maps integration (limited).

Practical use: before every fill-up in Portugal, spend 30 seconds on precoscombustiveis.pt to check the nearest cheap option. Typical savings: €3-8 per fill-up.

Cross-border fuel arbitrage with Spain

Spain is cheaper than Portugal on both petrol and diesel, because of lower excise duty and stronger retail competition. The current national averages for both countries are in the comparison table higher up this page, which refreshes automatically; the gap has been in the 25 to 40 cents per litre range through 2026 and is widest on diesel.

Two things move that gap, and neither is under Portuguese control. Spain has run a temporary excise reduction since March 2026 that is scheduled to end on 30 September 2026, which currently widens the gap. Portugal has ruled out matching it: on 10 September 2026 the Environment and Energy Minister told parliament the revenue is needed for public services. Check the live figures before planning a detour rather than assuming a fixed number.

Cross-border strategies:

• From Spain via A25 (Salamanca): fill up at Fuentes de Onoro on the Spanish side before crossing; the first Portuguese station at Vilar Formoso sits at Portuguese price level
• From Spain via A6 (Madrid-Lisbon): fill up at Badajoz before crossing; the first Portuguese station at Elvas sits at Portuguese price level
• From Spain via A22 (Andalusia-Algarve): fill up at Ayamonte before crossing; the first Portuguese station at Vila Real de Santo Antonio sits at Portuguese price level
• Round trip from Portugal: on Sundays and public holidays, Portuguese border residents drive to the Spanish stations at Ayamonte, Badajoz and Fuentes de Onoro. At a 30-cent gap, a 50-litre fill saves around €15, so the trip pays for itself only if the detour is short

Not worth crossing for fuel only: if your round trip adds more than 100 km, you may break even but time cost outweighs savings.

ISP + VAT: what is fixed and what is not

Portugal is the exception among the countries on this site. The ISP excise is not a fixed annual rate: it is re-set by ministerial portaria, in practice almost every week, because the government is applying a temporary discount that tracks the pump price.

The most recent instrument at the time of writing, Portaria n.º 430-A/2026/1 of 11 September 2026, in force from 14 September, set the rate at €431.60 per 1000 litres for petrol and €264.02 per 1000 litres for diesel, each already including the road-service levy (87 and €111 respectively). Both figures contain a temporary reduction, and a later portaria will have replaced them.

For that reason this page does not quote a standing per-litre excise figure: any such number would be wrong within days. The rate currently in force is published in the Diário da República, and the pump price that results from it is in the live table at the top of this page.

On top of the product price and the ISP comes VAT at 23%, charged on the excise as well, so the tax take rises automatically when the price rises.

VAT (23%) is the highest single tax component; Portugal’s VAT rate is above the EU average of 21%. ISP excise is broadly comparable to other EU countries. The gap with Spain at the pump is wider than the difference in permanent excise duty alone, because Spain has added a temporary reduction on top of it that is due to end on 30 September 2026.

Payment methods

Visa, Mastercard, Maestro and American Express are accepted at every brand station. Contactless payment without PIN is standard (up to €50). Apple Pay and Google Pay accepted. Fuel cards: DKV, UTA, Routex, Shell Card and major brand cards all accepted at brand stations.

LPG and AdBlue

LPG / Autogas

LPG network is moderately dense - major brand stations on highways and select urban locations carry autogas. Price typically 40-50 percent below petrol per kilometre after factoring 30 percent higher consumption.

AdBlue

Available at virtually every modern diesel station. Bulk pumps for trucks common at motorway service areas. A modern Euro 6 car uses AdBlue at roughly 3-5 percent of its diesel consumption, so a tank of 8-33 litres lasts about 5,000-15,000 km (ADAC). A larger container, or a workshop refilling from bulk, costs less per litre than a small bottle. AdBlue prices are neither regulated nor published anywhere in Europe, so check the price before you buy.

Practical tips

• Find cheapest with the right app: precoscombustiveis.pt is the consumer tool of choice.
• Avoid motorway service areas: 5-15 cent surcharge versus town stations.
• Carry a backup card: rare pre-authorisation failures at unmanned stations.
• Border tactics matter: see border section in the strategy.
• Use brand apps: member pricing typically 2-5 cents per litre below pump.

Resources

• EU Weekly Oil Bulletin: energy.ec.europa.eu/data-and-analysis/weekly-oil-bulletin_en
• precoscombustiveis.pt: DGEG official feed
• Major brand apps (Circle K, OKQ8, TotalEnergies, Galp, Prio etc.) for member pricing