Peter Waldman:

Last fall, as oil prices crashed, Ali al-Naimi, Saudi Arabia’s petroleum minister and the world’s de facto energy czar, went mum. He still popped up, as is his habit, at industry conferences on three continents. Yet from mid-September to the middle of November, while benchmark crude prices plunged 21 percent to a four-year low, Naimi didn’t utter a word in public.
 
 For 20 years, Bloomberg Markets reports in its May 2015 issue, the world’s $2 trillion oil market has parsed Naimi’s every syllable for signs of where supply and prices are heading. Twice during previous routs—amid the Asian financial crisis in 1998 and again when the global economy melted down 10 years later—Naimi reversed oil’s free fall by orchestrating production cutbacks among members of OPEC. This time, he went to ground.