/ Source: The Associated Press
Shares of some top silver companies are up at noon:
Hecla Mining rose $.18 or 3.2 percent, to $5.74.
Pan American Silver rose $.61 or 2.4 percent, to $25.78.
Silver Standard rose $.39 or 2.1 percent, to $19.25.
Silver Wheaton rose $.50 or 2.7 percent, to $18.94.