The WSJ has an interesting article on natural gas prices:  "Natural-gas prices rose above $4 a million British thermal units during intraday trading on Thursday and are up 73% from a year ago.

*** After watching prices of the heating fuel fall for more than four years, some commodities traders are getting bullish on natural gas. A chilly start to spring brought natural-gas stockpiles nationwide closer in line with average levels for this time of year. Further stoking the rally, traders and investors said, are signs that the boom in U.S. gas output is slowing, which could trim supplies even more."