Large asset impairment, demand disruption pull Petronas into first quarterly loss since 4QFY15, with revenue down 42%Petroliam Nasional Bhd (Petronas) posted a loss after tax of RM21 billion for the second financial quarter ended June 30, 2020 (2QFY20) due to a sharp contraction in oil demand by as much as 22 million barrels per day in April, no thanks to the Covid-19 pandemic.