A process operator holds a handful of dried distillers grains, a protein animal feed that can be fed to livestock, at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A process operator is seen on top of fermenters at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A large corn storage bin is seen at the GreenField ethanol plant in Chatham, Ontario April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A load of corn is dumped from a truck into a receiving bin at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A worker pumps gasoline blended with 10% ethanol at the UPI Energy gas station in Chatham, Ontario, April 11, 2008. REUTERS/Mark Blinch (CANADA) 

Corn is seen in the liquid form after the ethanol has been extracted from it at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

The ethanol loading station at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A process operator pours ethanol into a bottle at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A grain receiver grades the corn by measuring its quality at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. Before each delivery, samples are analyzed to ensure proper quality before the corn starts in the ethanol production process. REUTERS/Mark Blinch (CANADA) 

A large fermentation tank is seen with steam flowing overhead at the GreenField Ethanol plant in Chatham April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A process operator displays a sample of milled corn after it was sent through a hammer mill at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A worker walks by the distillation area at GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A process operator displays a handful of corn at the GreenField Ethanol plant in Chatham, Ontario April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A processor uses a flashlight to look at a slurry mixer where corn meal is mixed with hot water and enzymes at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A process operator displays a sample of milled corn after it was sent through a hammer mill at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

An E85 fuel pump fuel, which consists of 85% ethanol, is seen at a UPI Energy gas station in Chatham, Ontario, April 11, 2008. REUTERS/Mark Blinch (CANADA) 

A processor takes a look at milled corn, which feeds the plant, on a conveyer belt at the GreenField Ethanol plant in Chatham, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A process operator shows a handful of corn at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

Robert Gallant, president and CEO of GreenField Ethanol, poses in his office in Toronto April 22, 2008. REUTERS/Mark Blinch (CANADA) 

A view of distillation columns, where alcohol is separated from the water and solids within corn, at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A process operator looks at a general view of the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A trucker fills his truck at the fuel ethanol loading station at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

Corn trucks awaiting delivery are lined up at the GreenField Ethanol plant in Chatham, Ontario, April 10, 2008. REUTERS/Mark Blinch (CANADA) 

A UPI Energy gas station, that sells E85, fuel that consists of 85 percent ethanol, is seen in Chatham, Ontario, April 11, 2008. REUTERS/Mark Blinch (CANADA)