1991, as it escalated efforts to revive global markets just as a resurgence of the coronavirus is threatening demand again. Saudi Arabia faithfully delivered the extra curbs promised in June, and the laggards, though still trailing in implementing the cuts, stepped up their performance, according to a Bloomberg survey. OPEC and its partners’ record output cuts since May have helped revive the oil market, but a recent surge of Covid-19 infections in countries including the U.S. is highlighting the fragility of the revival. The Organization of Petroleum Exporting Countries cut production by 1.93 million barrels a day to 22.69 million a day last month, according to the survey. That’s the […]