Oil supermajor Exxon Mobil has reached an agreement with Var Energi to farm out its Norwegian oil and gas assets in a $4.5 billion deal. The deal will bring an end to Exxon’s upstream operations in Norway, where it has been present for more than a century. The $4.5 billion deal is part of Exxon’s divestment strategy to let go of $15 billion worth of nonstrategic assets by 2021.