`` Oil prices have not rebounded Movement.up.gain alarmingly because the market is still working off the gluts Oversupply built up in 2015 , '' the IEA said .

`` Oil prices have not added Movement.up.gain alarmingly because the market is still working off the gluts Oversupply built up in 2015 , '' the IEA said .

`` Oil futures have not ballooned Movement.up.gain alarmingly because the market is still working off the gluts Oversupply built up in 1980s , '' the IEA said .

Six months on that wave of oil looks no nearer , with concern Negative_sentiment veering to shortfalls Shortage rather than gluts Oversupply , and the shock of events in Iraq troubling delegates more behind the scenes .

`` Oil prices have not added Movement.up.gain alarmingly because the market is still working off the gluts Oversupply built up in 1980s , '' the IEA said .