Cass County Butane Co., Inc., dba Welch Propane, is a family owned and operated propane retailer serving the Northeast Texas and Southwest Arkansas communities since 1947. We are a full service propane dealer specializing in new and existing residential installation as well as commercial and agricultural use. Please feel free to learn more about services we offerPropane Delivery Tank Installation Service, Repair and Gas Piping Heaters, Fireplaces & Gas Logs Cylinder Filling State and Local Rebates