Oil companies shares mixed at the close of trading

Shares of some top oil companies were mixed at the close of trading:

BP PLC fell $.42 or 1.0 percent, to $43.04.

Chevron fell $.17 or .2 percent, to $109.70.

ConocoPhillips fell $.45 or .7 percent, to $67.06.

Exxon Mobil Corp. rose $.04 or percent, to $87.01.

Marathon Oil Corp. rose $.08 or .3 percent, to $30.41.