Yes, the tap water in Oban, United Kingdom, is perfectly safe to drink. Water quality in Oban is subject to strict regulations and standard inspections by the Water Services Regulation Authority (Ofwat) and the Drinking Water Inspectorate (DWI) to ensure the water is safe for public consumption. Therefore, you can easily drink the tap water directly or use it for cooking, washing and brushing your teeth. It is both economical and environmentally friendly to drink tap water in Oban instead of bottled water.