NEW YORK (AP) â¿¿ Shares of some top gold companies were mixed at the close of trading: Barrick Gold Corp. fell $.03 or .1 percent, to $28.81. Gold Fields Ltd ADS unchanged at $8.04. GoldCorp. rose $.14 or .4 percent, to $32.72. Newmont Mining Corp. rose $.01 or percent, to $40.38.