On May 6, 2026, the national average gas price rose to $4.536 per gallon, reflecting a slight increase from the previous day. California stands out with the highest prices, where regular gasoline costs $6.160 per gallon, while mid-grade and premium fuels are priced at $6.386 and $6.575, respectively. Diesel fuel in California is particularly high at $7.503. In contrast, Texas offers the most affordable gas prices, with regular fuel at $4.043 per gallon and diesel at $5.141. Florida's prices are at $4.460 for regular fuel, while New York and Pennsylvania show prices of $4.548 and $4.640, respectively. The pricing structure indicates a consistent hierarchy, with higher-grade fuels costing more than regular gasoline and diesel being the most expensive fuel type overall. This data highlights the regional disparities in fuel costs across the United States.