Gas prices in Denver, CO

About gas prices in Denver, CO

Denver gas pricing reflects Colorado's unique fuel rules and mountain geography. The state requires an oxygenated winter blend to reduce emissions at altitude, which adds 5 to 10 cents per gallon from November through February. Suncor's refinery in Commerce City is the only refining capacity along the Front Range. Pipeline access from the Gulf Coast runs through Cushing and into the Denver-Julesburg basin, but local supply is constrained when Suncor enters scheduled maintenance. Drivers along the I-25 corridor between Fort Collins and Castle Rock see the cleanest wholesale-to-retail pass-through. Western suburbs like Lakewood and Wheat Ridge typically run 8 to 15 cents below downtown stations, and Costco locations near Park Meadows post the lowest posted prices in the metro most weeks.