WEST BOUNTIFUL -- South Davis Metro Firefighters responded to a fire at the Holly Refinery on Friday evening.
Flames could be seen from the freeway coming from the top of a tank at about 9:50 p.m.
The refinery's fire brigade extinguished the fire which was burning insulation on top of an asphalt tank, Deputy Chief Jeff Bassett of South Davis Metro said.
It is unknown how the insulation caught on fire.
Bassett said that whenever a call is put out to a refinery, they respond with a full assignment including ladder and Hazmat companies in case of larger threats.