At 1:15PM a fire was reported in the MGO warehouse by plant operators that required both a Fire Dept.response & reporting to MSHA @ 1:28PM. The fire lasted beyond 30 minutes until extinguished @ 3:22PM. Extensive water damage of bagged MGO product from fire Dept.There was not a direct cause of the non-injury fire determined by the Woodville Fire Dept. or the company at this time.