Data sources & methodology
FuelWide uses official government sources only — no scraping, no crowdsourcing, no estimates presented as measurements. Every number on the site carries its update date, and every page links back here. Where data is slower or narrower, we say so with a visible confidence label instead of pretending.
European Union — 27 countries
Confidence: High- Source
- European Commission — Weekly Oil Bulletin
- Cadence
- Weekly, published every Monday
- Coverage
- National weighted average pump prices: Euro-super 95, automotive diesel, LPG and heating oil, with and without taxes.
- Limitations
- Country-level averages, not station-level. Prices reported in EUR per 1,000 litres; FuelWide normalizes to EUR per litre.
United States
Confidence: High- Source
- U.S. Energy Information Administration — Weekly Retail Gasoline and Diesel Prices
- Cadence
- Weekly, published every Monday
- Coverage
- Retail gasoline (regular, midgrade, premium) for the US, 9 states and 10 cities; on-highway diesel nationally. Full weekly history since the 1990s.
- Limitations
- EIA publishes weekly state data only for selected states. Prices are USD per gallon including taxes.
Non-EU Europe & the UK — 15 countries
Confidence: High (UK) / Medium (aggregated)- Source
- gov.uk Weekly Road Fuel Prices + OpenVan.camp aggregation
- Cadence
- Weekly
- Coverage
- The UK (official gov.uk weekly prices) plus Norway, Switzerland, the Balkans and micro-states, aggregated from official national sources and converted to EUR per litre.
- Limitations
- Non-UK figures are aggregated rather than from a single official bulletin. National averages, not station-level.
Canada
Confidence: Medium- Source
- Statistics Canada — Monthly average retail prices for gasoline and fuel oil (18-10-0001-01)
- Cadence
- Monthly
- Coverage
- Average self-service pump prices for regular, premium and diesel in 18 major cities, CAD cents per litre.
- Limitations
- Monthly averages lag live pump prices; FuelWide labels Canadian data accordingly and will integrate faster provincial feeds.
Asia — 30 countries
Confidence: Medium- Source
- GlobalPetrolPrices.com — worldwide retail fuel prices
- Cadence
- Weekly
- Coverage
- National average petrol 95 and diesel pump prices across japan to the gulf and central asia, normalised to EUR per litre.
- Limitations
- No single official bulletin covers this region, so prices are the most-recently-published national averages from GlobalPetrolPrices.com. Per-country tax splits and LPG are not shown where not reliably reported; several markets subsidise fuel.
Africa — 19 countries
Confidence: Medium- Source
- GlobalPetrolPrices.com — worldwide retail fuel prices
- Cadence
- Weekly
- Coverage
- National average petrol 95 and diesel pump prices across cape town to cairo, normalised to EUR per litre.
- Limitations
- No single official bulletin covers this region, so prices are the most-recently-published national averages from GlobalPetrolPrices.com. Per-country tax splits and LPG are not shown where not reliably reported; several markets subsidise fuel.
Latin America — 15 countries
Confidence: Medium- Source
- GlobalPetrolPrices.com — worldwide retail fuel prices
- Cadence
- Weekly
- Coverage
- National average petrol 95 and diesel pump prices across mexico to patagonia, normalised to EUR per litre.
- Limitations
- No single official bulletin covers this region, so prices are the most-recently-published national averages from GlobalPetrolPrices.com. Per-country tax splits and LPG are not shown where not reliably reported; several markets subsidise fuel.
Oceania — 5 countries
Confidence: Medium- Source
- GlobalPetrolPrices.com — worldwide retail fuel prices
- Cadence
- Weekly
- Coverage
- National average petrol 95 and diesel pump prices across australia, new zealand & the pacific, normalised to EUR per litre.
- Limitations
- No single official bulletin covers this region, so prices are the most-recently-published national averages from GlobalPetrolPrices.com. Per-country tax splits and LPG are not shown where not reliably reported; several markets subsidise fuel.
Exchange rates
Confidence: High- Source
- European Central Bank reference rates (via frankfurter.dev)
- Cadence
- Daily (business days)
- Coverage
- EUR/USD, EUR/GBP, EUR/CAD used for all currency conversions.
- Limitations
- Reference rates, not retail exchange rates.
How the Fair Price Score works
The FuelWide Fair Price Score (0–100) answers “is this a good price right now?”. For US areas it is computed from that area's own history: position within the 52-week price range plus the move against the 4-week average. For European countries it is cross-sectional: where the country ranks among the 42 European countries we track this week, its distance from the EU average, and the direction of the EU-wide 4-week trend. Asian countries are scored the same cross-sectional way, ranked against their 30 regional peers. The score compares averages — it does not predict future prices and it is not station-level advice.
Citing FuelWide
You are welcome to cite FuelWide with attribution (“FuelWide, based on official EC/EIA/StatCan data”) and a link. Our underlying sources permit reproduction with acknowledgement. For embeddable price cards see the widgets page; for raw data use the free API.