BRIEF-Whiting Petroleum says expects to record impairment charge between $800 mln-$900 mln in Q4 2017 for partial write-down of certain of its assets
December 11, 2017 at 06:34 AM EST
* Whiting Petroleum says expects to record impairment charge between $800 million and $900 million in Q4 2017 for partial write-down of certain of its assets
