NEW YORK (AP) ażż Shares of some top gold companies were down at the close of trading: Barrick Gold Corp. fell $.35 or 2.0 percent, to $17.11. Gold Fields Ltd ADS fell $.06 or 1.9 percent, to $3.11. GoldCorp. fell $.68 or 3.1 percent, to $20.91. Newmont Mining Corp. fell $.66 or 2.8 percent, to $