Montana Costco Gas Prices
5 Costco fuel centers in 5 cities · 2 of 5 sell diesel
Montana Avg Regular
$4.393
per gallon
Montana Avg Premium
$4.979
per gallon
Montana Avg Diesel
$5.374
per gallon
Montana regular is$0.23belowthe U.S. average ($4.622)
Premium runs$0.59above regular on average
Cheapest
Billings
Billings
$4.299
Most expensive
Helena
Helena
$4.459
Costco operates 5 fuel centers in Montana, spread across 5 cities. Across the state, regular gas averages $4.393, premium runs about $0.59 higher at $4.979, and diesel sits at $5.374. The lowest-priced regular pump is at Costco Billings in Billings at $4.299, while Helena in Helena sits about $0.16 higher. Across the state, regular pump prices have climbed about $0.47 over the past two weeks, from $3.919 two weeks ago. Premium has climbed about $0.50 and diesel has climbed about $0.41 over the same period. Diesel is sold at 2 of the 5 Montana locations.