Costco Gas Stations in MT (MT)
4 stations across 4 cities
About Costco Gas in MT (MT)
MT (MT) has 4 Costco gas stations across 4 cities. The largest concentrations of stations are in Billings (1), Bozeman (1), and Helena (1). Most stations open at 6 AM on weekdays and close at 10 PM. On Sundays, hours are typically 6 AM–7:30 PM. All Costco gas stations require an active membership. Payment is accepted by Visa, most debit cards, and Costco Shop Cards.
For context, the average retail price of regular gas in the Rocky Mountain (PADD 4) region was $3.95/gal (premium $4.64) the week of 2026-11-09. Costco fuel is typically priced below the local average. Source: U.S. EIA weekly retail gasoline prices.
Hours last checked August 20, 2026 · hours on file for 4 of 4 stations. How we check
Cities
All Stations
Costco gas in MT (MT): FAQ
How many Costco gas stations are in MT (MT)?
MT (MT) has 4 Costco gas stations in 4 cities.
What time do Costco gas stations open in MT (MT)?
Most Costco gas stations in MT (MT) open at 6 AM and close at 10 PM on weekdays (based on the hours on file for 4 of 4 stations). Hours vary by station, so check the station page.
What are Costco gas hours on Sunday in MT (MT)?
On Sundays, Costco gas stations in MT (MT) are typically open 6 AM–7:30 PM (based on the hours on file for 4 of 4 stations).
Which cities in MT (MT) have the most Costco gas stations?
Billings (1), Bozeman (1), Helena (1).