Sunoco at 719 US-81 in Duncan, OK delivers premium fuel choices and reliable value with every visit. Select from regular, mid-grade, and premium Top Tier™ gasoline – formulated for optimal engine performance. Step inside for a quick, convenient, and welcoming shopping experience, with snacks, drinks, and everyday essentials ready when you are.

Sunoco at 908 N HWY 81 in Duncan, OK delivers premium fuel choices and reliable value with every visit. Select from regular, mid-grade, and premium Top Tier™ gasoline – formulated for optimal engine performance. Step inside for a quick, convenient, and welcoming shopping experience, with snacks, drinks, and everyday essentials ready when you are.