Serving Central West Oklahoma Since 1957! Fast and Friendly Service. Offering Propane Tank Delivery and Setup, Bottle Filling, and Motor Fuels. Kilhoffer Propane Co. is a family owned and operated company which has been serving residents, businesses, and oilfields in Western Oklahoma with propane and propane tanks, propane lines, propane delivery, and bottle filling since 1957. With offices in Canute and Elk City, Oklahoma, we can supply all of your propane needs.