Chevron to Lay Off Up to 20% of Staff

Chevron, the second-largest U.S. oil and gas company, said on Wednesday that it would lay off as much as 20 percent of its work force, or up to around 9,000 people, as part of a cost-cutting effort.While the cuts are deeper than at other oil companies, they are in keeping with a broad trend of layoffs at oil and gas companies as they contend with lower oil prices. After enjoying a few years of robust profits…