Shares of some top oil companies are up at 10 a.m.:

BP PLC rose $.45 or .9 percent, to $52.15.

Chevron rose $1.14 or .9 percent, to $130.40.

ConocoPhillips rose $.83 or 1.0 percent, to $85.54.

Exxon Mobil Corp. rose $.92 or .9 percent, to $103.31.

Marathon Oil Corp. rose $.66 or 1.7 percent, to $39.97.