Royal Dutch Shell on Monday said it will write down the value of oil and gas assets by $3.5 billion to $4.5 billion following a string of impairments this year as it adjusts to a weaker outlook.
http://www.businessworld.in/article/Shell-To-Write-Down-Assets-Again-Taking-Cuts-To-More-Than-22-Billion/21-12-2020-356325/#news