As natural gas prices are on track for a gain after a volatile year, the U.S. Natural Gas ETF...

As natural gas prices are on track for a gain after a volatile year, the U.S. Natural Gas ETF (NYSEARCA:UNG) is down 25% YTD and more than 90% since mid-2008. But hope springs eternal, as Charles Freeman says he’s betting on UNG to back his bullish thesis on natural gas. The transportation industry is on the cusp of considering LNG-powered trucks, and lower prices mean nat gas is "rapidly replacing coal as the 'go-to' fuel for power generation."