Coverage and data quality
What our station reports can tell you — and where the gaps are.
Our Calgary coverage snapshot
This table counts active station listings in Calgary and Tsuut’ina in our database. It is a view of our coverage, not a census of all operating stations. Nearby towns are excluded. A current report means a usable, dated observation within 36 hours; it does not mean we independently checked the pump.
417 station listings. Snapshot checked .
| Grade | Dated within 36h | Other stored price | No price |
|---|---|---|---|
| Regular | 286 | 16 | 115 |
| Mid-grade | 224 | 55 | 138 |
| Premium | 237 | 57 | 123 |
| Diesel | 174 | 120 | 123 |
“Other stored price” includes older reports, missing or invalid observation dates, and sources excluded from current comparisons. “No price” means unknown in our feed; it does not prove that the station does not sell that fuel.
Newest eligible source observation: Nov 12, 2026, 5:11 p.m. Calgary time. This is separate from the snapshot check time above.
Where the information comes from
Our current station-price collection uses GasBuddy community price observations. Station identity, address and map coverage can also include OpenStreetMap records. Those map records do not establish a pump price. Third-party reports can be incomplete or wrong, and coverage varies by grade.
We add report-age checks, grade-specific comparisons, nearby-station maps and a detour savings calculator to help interpret the observations. We do not claim ownership of the underlying community reports or a measured accuracy rate against station pumps.
A feed check is not a new price report
The collection service attempts hourly checks. A successful check can retrieve the same observation again, and a failed check does not confirm anything new. Each grade needs its own source observation time. We do not use a diesel report to refresh the age of a regular-gas price, or the time a database row was saved to make a price look new.
- Up to 12 hours: eligible for the fresher comparison group.
- 12 to 36 hours: still eligible, but ranked after fresher reports.
- Older or undated: excluded from current-price comparisons and labelled as last known where shown on station pages.
- Missing: shown as unknown, never estimated from a different grade.
Within each freshness group we sort by price, with distance when available and then name used for ties. A fresher report can therefore appear before a cheaper, older report. Seed data, map-only records and undated aggregate feeds do not qualify as current station prices.
How to use prices responsibly
Our averages describe the eligible reports in the snapshot. They are not weighted by fuel sales or a guarantee of the citywide market. A small or uneven sample can miss whole neighbourhoods. A forecast is an estimate and is withheld when its data requirements are not met; it is never a promised pump price.
Check the grade, report time, membership requirement and address before setting off. Distance on the station finder is straight-line distance. Use road distance in the savings calculator and confirm the price on the pump before filling.
Corrections and maintenance
Report an issue through Contact. Include the station URL or address, fuel grade, observed price and the date and time you saw it. For article corrections, include the passage and a supporting source. Do not include payment information or other people’s personal details.
A submitted correction is not automatically a verified price report. It needs checking before it can change a dated observation. Material editorial corrections should identify what changed; routine feed updates are reflected in the observation times rather than presented as editorial reviews.
Changes made on November 5, 2026
- Added this coverage table with separate source-observation and snapshot times.
- Added a fuel-savings calculator with driving costs, optional time costs and worked examples.
- Clarified collection attempts, freshness groups and the limits of third-party observations.
- Revised the savings, timing and trip-planning guides, added a receipt-based fuel-consumption calculator, and removed unsupported savings and weekday claims.
- Aligned displayed report times with Alberta’s November 2026 move to permanent UTC−6 so older server time-zone data cannot shift the displayed observation by an hour.
See About and editorial standards and How it works. Methodology reviewed November 5, 2026; the coverage snapshot above has its own timestamp.