This is probably old news, but PLEASE let me know if it isn't. The reason I even saw this post is because I'm going through it with a propane company. DO NOT, under any circumstances, lease a propane tank. This company just filled my tank and is trying to charge me almost $1.00/gal more than other local suppliers. They are also quoting me 3 times the price to buy the tank (it's underground) than they quoted me 2 years ago, even though the price should actually be lower because of additional depreciation. Now I'm having to get a lawyer involved.