Dec.12 -- On the second day of trading on Riyadh’s stock exchange, Saudi Aramco surged -- briefly -- past Mohammed bin Salman's $2 trillion target. Meanwhile, Chevron Corp. expects to write down as much as $11 billion in the fourth quarter, more than half of it from its Appalachia natural gas assets after a slump in prices. Bloomberg's Tina Davis, Rachel Adams-Heard and Alix Steel discuss the two oil giants on "Bloomberg Commodities Edge".
