Home › Top 6 Gas Stations in Middletown, Connecticut Find best Gas Stations in Middletown, Connecticut, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Sunoco Gas Station - Middletown (CT 06457) US, Middletown, CT 06457519 Washington St Exxon - Middletown (CT 06457) US, Middletown, CT 06457427 S Main St Valero Gas Station - Middletown (CT 06457) US, Middletown, CT 06457339 S Main St Shell - Middletown (CT 06457) US, Middletown, CT 06457436 S Main St Irving Oil - Middletown (CT 06457) US, Middletown, CT 06457302 E Main St CITGO - Middletown (CT 06457) US, Middletown, CT 064571075 Newfield St