May 8, 2024--Written by John Egan for Industrial Info Resources (Sugar Land, Texas)--First-quarter earnings declined at four large integrated supermajor oil companies--Exxon Mobil Corporation (NYSE:XOM) (Spring, Texas), Chevron Corporation (NYSE:CVX) (San Ramon, California), Shell plc (NYSE:SHEL) (London, England) and BP plc (NYSE:BP) (London)--as relatively soft prices for oil and gas combined with lower refined product margins dragged down profits.