http://www.eia.gov/tools/faqs/faq.cfm?id=58&t=8
An acquaintance who works for AGL says the projected supply is more like 250 years.
Do you believe other government figures such as unemployment?
I know all about the figures but I also see all the NG power plants being built because of the decimation of the coal powered plants as well as industrial demands if we ever experience a recovered economy.
I have been in and around the awl bidness for all of my 65 years and it would not bother me a bit if NG went to $20.00/1000 but it would absolutely decimate the average consumer. Just look at the folks in the northeast that have no other choice than heating oil.
The number of years really comes down to "at what price?"
We won't stop using oil/gas because there is none left, it will be because the alternatives are finally cheaper. That may come with lower cost alternatives, higher cost oil/gas, or most likely a combination of both.