Successful propane companies don?t just happen. Success requires nurturing, year after year, to assure that customer expectations not only are met, but also are exceeded. At ThompsonGas, we trace our beginnings back to 1946, the year Lloyd Thompson founded our company in Boonsboro, Maryland. We?ve served that small farming community for over six decades with a commitment to service and a reputation for strong family values.Today, ThompsonGas is one of the top 19 propane companies in the US. Family owned and operated since 1946, ThompsonGas provides propane services to residential and commercial customers across ten states in the East and Southeast. ThompsonGas has delivered below market propane prices 16 out of the last 17 years with unparalleled service.ThompsonGas is a company founded on the solid family operated business principles of trust and service, old fashioned values that never grow old.