On Wed, 31 Oct 2007 20:24:40 -0700 (PDT) stephen...@yahoo.com wrote: > King Hubbert accurately predicted in > 1956 that US oil production would peak in 1970, which it did. However, > his model is generally considered to have failed since, as his > predicted bell shaped decline has been more of a modest sloping curve > (including a second peak in 1985).
May I add that Hubbert used conventional (liquid) oil in his calculations and did not include unconventionals like heavy oil, tar sands and oil shale. If you only include conventionals, I think the bell curve is steeper going down. -- Lyndon Tiu --------------------------------------------------------------------- Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
