Costco Oklahoma Gas Prices

Costco operates 4 fuel centers in Oklahoma across 3 cities, with the largest cluster in Tulsa (2 stations). Across the state, regular gas averages $3.687, premium runs about $0.520 higher at $4.207, and diesel sits at $5.789. The lowest-priced regular pump is at Costco Moore in Moore at $3.589, while Tulsa in Tulsa sits about $0.290 higher. Across the state, regular pump prices have eased about $0.100 over the past month, from $3.786 a month ago. Premium has eased about $0.070 and diesel has eased about $0.160 over the same period. Diesel is sold at 1 of the 4 Oklahoma locations.

If your vehicle takes premium, the lowest in Oklahoma is Costco Moore in Moore at $4.149. The cheapest diesel is at Costco Tulsa in Tulsa at $5.789. 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.