What to Watch in the Day Ahead - Friday, July 31

(The Day Ahead is an email and PDF publication that includes the day's major stories and events, analyses and other features. To receive The Day Ahead, Eikon users can register at . Thomson One users can register at RT/DAY/US. All times in ET/GMT) Exxon Mobil Corp, the world's biggest listed oil company, and its U.S. peer, Chevron Corp, are scheduled to post second-quarter earnings. Exxon's profit is expected to nearly halve. Recently Chevron, the second-largest U.S. oil company, said it wou