PMMIC is a stock insurance company located in Iowa that specializes in underwriting Underground Storage Tanks (USTs) and Aboveground Storage Tanks (ASTs) containing petroleum in multiple states throughout the USA. PMMIC is owned predominately by petroleum marketers, it's policyholders. PMMIC emphasizes loss control in their approach to underwriting these unique risks by typically inspecting every site it insures before they underwrite it and annually thereafter as part of the policy premium.