Costco Massachusetts Gas Prices

Costco operates 4 fuel centers in Massachusetts, spread across 4 cities. Across the state, regular gas averages $3.896 and premium runs about $0.928 higher at $4.824. The lowest-priced regular pump is at Costco West Springfield in West Springfield at $3.799, while Sharon in Sharon sits about $0.160 higher. Across the state, regular pump prices have held roughly flat over the past month. Premium has climbed about $0.035 over the same period.

If your vehicle takes premium, the lowest in Massachusetts is Costco West Springfield in West Springfield at $4.659. 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.