Home › Top 5 Gas Stations in Niantic, Connecticut Find best Gas Stations in Niantic, Connecticut, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Sunoco Gas Station - Niantic (CT 06357) US, Niantic, CT 06357188 Pennsylvania Ave Mobil - Niantic (CT 06357) US, Niantic, CT 0635787 W Main St Shell - Niantic (CT 06357) US, Niantic, CT 06357168 W Main St Stop & Shop Gas - Niantic (CT 06357) US, Niantic, CT 06357252 Flanders Rd Citgo - Niantic (CT 06357) US, Niantic, CT 06357200 CT-161