Chevron swings to $6.6bn loss after huge shale gas write-off

Chevron posted a fourth-quarter loss of $6.6 billion versus earnings of $3.7 billion for the same period of 2018, on the back of massive write-offs of $10.4 billion, predominantly in its US shale gas assets.Chevron’s quarterly loss, which was the steepest in a decade, did not surprise analysts...