These companies want to buyback their shares, which just might boost their earnings per share. OMAHA, Neb.----In conjunction with Union Pacific Corporation's Second Quarter 2007 Earnings Release, you are invited to listen to its presentation that will be broadcast live over the Internet or via teleconference on Thursday, July 19, 2007 at 8:45 a.m.A senior Afghan military officer in the southeastern part of the country says his forces are implementing the first Afghan-planned and executed operation to clear Taleban fighters from his area and establish government authority. The officer spoke from Afghanistan to reporters at the Pentagon.