Since 1933, Blarney Castle Oil and Propane has been a Michigan-based, family-owned business. With more than 90 EZ Mart convenience store locations, your nearest EZ Mart Store is just around the corner. We offer Propane and Home Heating Oil service as well as Commercial Fuel and Bulk Lubricant sales. We are dedicated to providing superior customer service and fair, competitive prices. We are grateful for the opportunity to serve YOU, our Michigan neighbors. (right) Our first station, Blarney Castle #2 (named so because the first Blarney Castle is in Ireland) in Bear Lake Michigan, circa 1933.