Home › Top 4 Gas Stations in Watertown, Connecticut Find best Gas Stations in Watertown, Connecticut, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Citgo - Watertown (CT 06795) US, Watertown, CT 067951371 Main St Shell - Watertown (CT 06795) US, Watertown, CT 067951009 Main St Gulf Gas Station - Watertown (CT 06795) US, Watertown, CT 0679524 Fern Hill Rd Citgo Mart US, Watertown, CT 067951030 Litchfield Rd