Trump has accused Opec of driving gasoline prices higher and urged the group to do more
Members of the Opec are discussing an agreement that delivers 300,000 to 600,000 barrels a day of additional oil supply to global markets over the next few months
Russian President Vladimir Putin could heed pressure from his country's biggest oil companies for a swift exit
Oil stockpiles will decline by about 600,000 barrels a day in the next six months