YOU can not fault the Organisation of the Petroleum Exporting Nations for its communication. On Could third it and its allies (OPEC+), which provide 40% of the world’s crude oil, introduced that they might crank up output by 411,000 barrels a day (b/d) in June—triple what analysts had anticipated, and equal to 0.4% of worldwide demand. World costs briefly sank beneath $60 a barrel, nearing four-year lows; they continue to be 6% beneath their degree of April twenty eighth, when rumours of a provide enhance first emerged. In a press release, the group gave an easy cause for its resolution: “wholesome market fundamentals”.