Costco North Dakota Gas Prices

Costco operates 2 fuel centers in North Dakota, spread across 2 cities. Across the state, regular gas averages $3.894, premium runs about $0.840 higher at $4.734, and diesel sits at $5.689. The lowest-priced regular pump is at Costco West Fargo in West Fargo at $3.789, while Bismarck in Bismarck sits about $0.210 higher. Across the state, regular pump prices have eased about $0.185 over the past month, from $4.079 a month ago. Premium has eased about $0.190 and diesel has eased about $0.510 over the same period. Diesel is sold at 1 of the 2 North Dakota locations.

If your vehicle takes premium, the lowest in North Dakota is Costco West Fargo in West Fargo at $4.569. The cheapest diesel is at Costco Bismarck in Bismarck at $5.689. Pump prices shift from one warehouse to the next with local taxes, fuel-blend rules, and transport costs, but Costco fuel is members-only and usually runs below nearby branded stations — which is what keeps these pumps busy.