Investing.com | The only certainty in oil is more uncertainty The National Oil registered the biggest weekly loss in almost 10 months as hopes faded that Opec will be able to implement a promised deal to cut production and ease global oversupplies. Once prices stop climbing, they (most often) correct. With little clarity ... Crude Oil Futures - Weekly Outlook: November 7 - 11 Saudi Oil Chief Whose Words Moved Markets Releases Memoir |