I was with Osterman before and had nothing but problems. Whiting Energy owned the tank at our house we bought in Shutesbury so we tried them. They have been great. They installed the gas lines to use our gas dryer when we moved in. They just installed our new gas stove-also a great job at a fair price. I just found checked our propane tank once the snow started to melt and found we were almost out. A quick call and we had a delivery the next business day. Their propane prices were almost a dollar less then what we were paying Osterman. I still don't know how that could be.