This year they increased rental fee by 33 percent. I asked and they said it is what it is and they are competitive. I checked coop and 15 percent cheaper as well coop does not charge hazmat and transport fees as superior has since around 2006 which for me is about 1000 dollars. Poor customer attitude by Nathan who suggested I check with coop and glad I did. Anyone need propane to heat house go with coop, lower tank rental, lower rate and no hazmat nor transport fee as well as a re bate program, for seniors like myself this is a win win, disappointed and thanks to Nathan at superior for suggesting I check out competitors like coop