Gas prices in Casper
Gas prices in CasperDaily metro average from AAA (2026-09-11), per gallon including taxes, for the Casper area of Wyoming.
Regular
$4.22
per gallon · €0.96/L
Midgrade
$4.54
per gallon · €1.03/L
Premium
$4.83
per gallon · €1.10/L
Diesel
$5.61
per gallon · €1.28/L
down vs last week 0.1% vs last week ($4.23) up vs a year ago 48.0% vs a year ago ($2.85)
Nearest Wyoming metros on price
The metros immediately either side of Casper in Wyoming, so you can see whether paying $4.22 here is normal or not.
| Metro | Regular | vs Casper |
|---|---|---|
| Casper | $4.22 | — |
| Cheyenne | $4.29 | +$0.07 |
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Frequently asked questions
How much is gas in Casper right now?
Regular gasoline averages $4.22 per gallon across Casper today (AAA metro average, 2026-09-11). Midgrade is $4.54, premium $4.83 and diesel $5.61.
Is gas cheaper in Casper than the rest of Wyoming?
A Wyoming state comparison is unavailable today.
Where does Casper rank in Wyoming?
Casper is the 1st cheapest of 2 Wyoming metros AAA tracks.
Are gas prices in Casper higher than a year ago?
Yes — regular is 48.0% higher than this time last year ($2.85/gal then, $4.22 now).