Casper, WY
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LiveUpdated Jun 8
Gas prices near 82609
Casper, WY · WY average $4.26/gal
Finding cheap gas in Casper (82609)
The east side of Casper carries this ZIP, out toward Evansville where the HF Sinclair refinery sits along East Yellowstone Highway. Having an operating refinery on this side of town underscores Casper's century-long oil-refining history, though local pump prices still answer to the wider regional market rather than the plant next door.
East Yellowstone Highway and the routes connecting to I-25 carry the commercial traffic here, and the stations concentrate along them and around the Evansville edge. Drivers filling near the interstate ramps see prices set for through traffic, so it pays to check the in-town stations too.
Wyoming's gas tax is among the lowest in the nation and has held steady for years, which keeps Casper fills affordable by national standards. With the tax floor low, the difference comes down to station volume, so comparing a few options on the east side is the practical move.
Nearby ZIP codes in Casper, WY
How to save more on gas in Casper
1. Use warehouse clubs
Costco and Sam’s Club typically price 15-25 cents per gallon below nearby stations. Membership pays for itself within a few fill-ups.
2. Fill up early in the week
Stations often raise prices Thursday for weekend demand. Fill up Monday through Wednesday to avoid the lift.
3. Keep tires properly inflated
Properly inflated tires improve fuel economy by up to 3 percent at current prices. Check pressure once a month.
4. Check back tomorrow
Prices can shift 10-20 cents overnight during volatile markets. A quick check before you leave home avoids paying yesterday’s spike.
5. Pay cash at split-pricing stations
Stations with cash and credit split pricing typically save an average of 10 cents per gallon when you pay cash.
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Wyoming drivers pay 12¢/gal more than the US average.
Wyoming roads are wide open. AAA Roadside fills the gaps.
Get 24/7 roadside assistance with towing up to 200 miles and fuel delivery in the genuinely remote stretches.
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About gas prices in Wyoming
Wyoming hosts in-state refineries at Cheyenne (HollyFrontier, 52,000 barrels per day), Sinclair (Sinclair Wyoming, 92,000), and Casper (P66 Sinclair), making the state largely self-sufficient for fuel. The state gas tax is around 24 cents per gallon, on the lower end nationally. Cheyenne, Casper, and Laramie all see relatively competitive pricing. Maverik (a Utah-Wyoming chain), Loaf 'N Jug, Sam's Club (in Cheyenne), and Costco lead on value across Cheyenne, Casper, and Laramie. Yellowstone-area summer tourism creates seasonal price increases in the northwestern corner of the state, while the Powder River Basin coal country in northeastern Wyoming typically tracks the lowest pricing in the state due to direct refinery proximity and low local taxes.