Oil companies shares up at 1 p.m.

Shares of some top oil companies are up at 1 p.m.:

BP PLC rose $.22 or .5 percent, to $43.11.

Chevron rose $1.97 or 1.8 percent, to $111.08.

ConocoPhillips rose $1.20 or 1.8 percent, to $68.89.

Exxon Mobil Corp. rose $.63 or .7 percent, to $87.56.

Marathon Oil Corp. rose $.55 or 1.8 percent, to $31.07.