Here is a chart of a the Nat Gas Stocks ETF:FCG which holds a large number of Nat Gas stocks compared to the Nat Gas ETF:UNG which tracks Nat Gas futures well. See how the stock ETF:FCG outperformed the Nat Gas ETF hands down over the last 3 years. And keep in mind you can hold the ETF:FCG in a stock account including a retirment account as well. Just one more way to skin a cat......................................