USA NG consumption is running at a rate that looks like 23.6 TCF for 2007, same as 2003, but mix has changed a lot, with industrial down (fertilizer etc) and electricity generation up, and growing. USA production was down from the 2003 peak in 2004/5/6 but is about back to 2003 level this year. Drilling in ca June 2002 was 1100 wells/mo and in June 2007 was ca 2800 wells/mo, so 2&1/2x the drilling for the same production. Imports from Canada are down slightly this year, while LNG imports are up just about the same amount. Storage capacity now is very close to 3.6 Tcf, excluding line pack, up about 0.04 Tcf from last year. Storage just crossed 3.0 Tcf last week, and there are 8 to 10 weeks left in the injection period, with a mild fall being forecast. Gas available for storage is likely to exceed storage capacity by 100 to 400 Bcf before the end of the injection season, and that is why prices are (temporarily) down. If by late Sept the excess looks like 400 Bcf prices are likely to drop to the point where NG is temporarily substituted for coal for some electricity production, as a way to use the excess. I'm not sure what that price is, but it is probably near or below $4.00/kcf. As noted above a string of mild winters have balanced the situation nicely for NG, keeping prices from going real high. A "normal" winter this year will leave storage at the end of the withdrawal season low enough that it will not be possible to fully replenish storage during 2008. You can then expect NG prices in late Sept/early Oct 2008 >2x the same period in 2007, with the real possibility of a much higher spike. NG prices in early spring and fall are based much more on storage vs capacity than on supply vs demand. Murray

The price where gas is substituted for coal (in terms of loading/deloading) is around £0.25/(european)Therm depending on the relative efficiences of the gas plant and coal plant - what this relates to in $/kcf I'm not sure.