InvestmentsTop Global NewsMarketsReal Estate Exxon signals up to US$20 billion writedown to overwhelm fourth quarter price gains in oil, chemicals By financialnews_rlv83x - December 30, 2020 0 53 Exxon Mobil Corp signaled in a regulatory filing on Wednesday that higher oil and gas prices and improved chemicals margins would aid fourth quarter results, but the gains would be overshadowed by an up to US$20 billion asset write down.