Oil major Exxon Mobil (XOM.N), told its trading counterparts that it will not buy the Mars crude oil grade until a zinc contamination ...

The Score is a weekly review of the biggest stock moves and the news that drove them. Here are the six in focus this week: ...

The start-up of an offshore well caused zinc contamination in Mars crude, Chevron said on Friday, leading to the tightening ...

US supermajor ExxonMobil is not buying any crude from the Mars stream in the US Gulf until a zinc contamination issue is ...