The Peak in U.S. Coal Production, LNG Import Issues Key (excerpt)
It is probably too early to definitively say whether the Hubbert model can be used for coal production in the U.S., but the examples of British coal, U.S. arsenic, and U.S. manganese seem to indicate that a Hubbert curve may be able to predict future production trends for U.S. coal.
May 26, 2004