Low oil prices have roiled oil exploration and production companies, but chief executives from a wide swath of the global economy, gathered here for the annual World Economic Forum are looking forward to a boost from the drop. Oil prices are down more than 50% since June, amid a supply glut partly due to booming American shale-oil production. In November, the Organization of the Petroleum Exporting Countries chose to maintain its output levels, saying it wouldn’t risk market share as non-OPEC producers, from the U.S. to Russia, continue to pump flat out. That has slammed big oil firms and companies that provide services for the sector. A number of big companies, from ConocoPhillips to BP PLC, have signaled they will be cutting back capital spending. On Thursday, OAO Lukoil Holdings President Vagit Alekperov said […]