A list of cellulose-ethanol production plants in the United States (classified into "operating, pilot-scale", "commercial scale, under development" and "pilot scale, under development") has been published by Reuters UK. (No commercial scale operating plant has been listed yet). As of February 2009, five commercial scale operating pilot-scale plants (with ethanol production capacities ranging from 0.02 Mgy to 1.5 Mgy) are listed. (Mgy= million gallons per year). Verenium Corporation and KL Energy Corporation had the highest production capacities at the pilot scale level (1.4 Mgy and 1.5 Mgy, respectively). The range of feedstocks include: corn stover, corn cobs, wood and bagasse. Nineteen companies are listed under "commercial scale, under development". The production capacities of the commercial plants under development were in the range between 12 Mgy and 36 Mgy, and the feedstocks include wood biomass (3 plants), rice hull, corn stover and sweet sorghum. Twenty pilot-scale plants which are under development are also listed..