Do you really think that today's unusual energy pricing situation will continue without the injection of a tremendous amount of new energy supplies into the mix?
Natural gas prices are low enough so that many independent drillers cannot obtain any financing for new wells and the deep pockets companies like ExxonMobil (through its subsidiary, XTO) have already shifted more than half of their gas drilling rigs to plays that produce more oil than gas.
North American natural gas prices are about 1/3 as high as natural gas prices in Europe, and 1/5 as high as prices in Japan. There are more than a dozen applications at FERC right now for permission to being equalizing those prices by moving more of the gas from here to there via LNG shipments.
Large industries are also interested in soaking up some of our currently available excess supply, but the margin between current production and current demand is already close enough so that a few really cold weeks would do the trick of consuming most of the excess.
No matter how large the potential resource really is (and the Potential Gas Committee put it at 2170 TCF as of the end of 2010, which is less than 90 years at our current consumption rate of 24.3 TCF per year) the rate at which that resouce can be extracted is already limited and cannot be expanded as fast as demand will change based on the marketing efforts of the gas suppliers.
That is the plan, of course. No supplier likes selling low priced products; they like for the demand to catch up with and surpass the supply so that prices are driven to a higher and more profitable level. That is simple Econ 101 and if you look at the history of natural gas prices you will see that the very worst prediction of long term prices is to assume that today's prices will not change very much.