Cheap Insurance explored some of the reasons behind major changes in gas prices, and compiled a list of the cheapest gas stations in every state using data from Gas Buddy. Gas N Go (521 Saraland Blvd S, Saraland): $2.19#1. Chevron (101 Saraland Blvd N, Saraland): $2.19Alaska#1. Casey’s (4301 13th Ave S, Fargo): $2.13#2. Casey’s (2902 13th Ave S, Fargo): $2.15#2.