GasPulse guides · September 6, 2026
State averages vs. local gas-station prices
The average in a gas-price app and the number on a station’s sign answer different questions. Both can be useful, as long as you know what each represents.
An average describes an area
An area average summarizes sampled prices across a wider market. EIA weekly retail gasoline estimates come from a survey and use weighting to represent sales. The result is a statistical estimate, not a promise that a nearby station sells fuel at that exact price.
GasPulse uses EIA weekly data. Where a state-level series is available, the app uses it; other states use their applicable regional average. Several state selections can therefore legitimately display the same underlying regional figure. That does not mean the app has separately measured every state or station.
A station price describes a purchase
A station’s posted price is specific to that location and fuel option. For a useful comparison, check the grade, payment conditions, and any membership requirement. An area’s regular-gasoline average is not a like-for-like quote for a premium-fuel purchase.
The EIA identifies crude oil, refining, distribution and marketing, and taxes as components of retail gasoline prices. A broad average smooths over differences between locations. Your station may be above or below that average.
Three checks before comparing prices
- Same geography? A state observation and a broader regional average are different measures. Read the coverage label.
- Same time? Compare the same reporting week. A station’s current price and last week’s average are not simultaneous observations.
- Same purpose? Use an average to follow a trend. Use a station quote to decide where to buy fuel. A forecast is a third kind of information: an estimate, not an observed price.
Where GasPulse fits
GasPulse is for understanding price movement before you fill up: weekly averages, charts, and an outlook in a simple iPhone interface. It does not list nearby stations or claim to find the cheapest gallon. For a walkthrough, read how to track gas-price trends on iPhone.
Sources: EIA’s weekly gasoline-price methodology and gasoline-price components.
