Consultations on a preliminary deal between leading oil producers to freeze output should be concluded by March 1 after a group led by Russia and Saudi Arabia reached a common position this week in Doha, Russia's energy minister said.
CNBC: Russian energy minister says oil output freeze deal will be done by March 1
Alexander Novak, Russian Energy Minister, delivers a speech during the Valdai International Discussion Club in Berlin, Germany, on April 13, 2015.
