Firefighters work to contain a blaze at the Silver Eagle Refinery Monday, January 12, 2008 in Woods Cross. An explosion in a gasoline tank at the refinery injured four and caused an evacuation of nearby homes. Jim Urquhart/The Salt Lake Tribune; 01/12/09

Farmington firefighters Scott Karren, left, and Hal Manning watch a blaze at the Silver Eagle Refinery Monday, January 12, 2008 in Woods Cross. An explosion in a gasoline tank at the refinery injured four and caused an evacuation of nearby homes. Jim Urquhart/The Salt Lake Tribune; 01/12/09

Farmington firefighter Jess Johnson prepares to work on a blaze at the Silver Eagle Refinery Monday, January 12, 2008 in Woods Cross. An explosion in a gasoline tank at the refinery injured four and caused an evacuation of nearby homes. Jim Urquhart/The Salt Lake Tribune; 01/12/09