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

American Electric Power Co. fell $.21 or .4 percent, to $53.76.

Consolidated Edison Inc. Holding Co. fell $.20 or .3 percent, to $57.05.

Dominion Resources Inc. fell $.16 or .2 percent, to $70.05.

Duke Energy Corp. rose $.39 or .5 percent, to $73.79.

Exelon fell $.22 or .7 percent, to $31.54.

PG&E rose $.04 or .1 percent, to $47.18.

Southern Co. fell $.24 or .5 percent, to $44.57.