Shares of some top utilities companies are mixed at 10 a.m.:

American Electric Power Co. fell $.11 or .2 percent, to $53.59.

Consolidated Edison Inc. Holding Co. unchanged at $57.89.

Dominion Resources Inc. rose $.45 or .6 percent, to $70.67.

Duke Energy Corp. unchanged at $73.99.

Exelon fell $.11 or .3 percent, to $33.31.

PG&E rose $.05 or .1 percent, to $46.53.

Southern Co. fell $.18 or .4 percent, to $44.22.