Chevron Corp CVX.N tumbled 5.1%. Brent crude fell back below $100 a barrel after scaling as much as $139 last week, providing some relief for U.S. stocks that have had a wild ride so far this year on worries about surging inflation and the Fed's moves to combat it. IRPR "They need to normalize interest rates, independent of the war in Ukraine and maybe commodity prices softening, because inflation is becoming sort of entrenched, it's become more broad base now," Lowenstein said.