VIENNA ( Reuters ) - OPEC sailed through a brief , calm meeting on Wednesday - even as oil futures increased Movement.up.gain to $ 110 a barrel on concern Negative_sentiment renewed conflict Civil.unrest could hit Iraq 's output and worsen Situation_deteriorate a supply shortage Shortage from chaotic Libya and sanctions-bound Iran .

The agency said a mild winter in Europe and the U.S. and problematic conditions in emerging markets like China could worsen Situation_deteriorate the glut Oversupply as there may be no change Movement.flat in the supply situation for the near-term with Russian output likely to remain robust Grow.strong in 2016 as well .

`` If the domestic economy falls apart Slow.weak , the decline Movement.down.loss in oil demand growth will radically worsen Situation_deteriorate . ''

However , a slowing Slow.weak global economy could worsen Situation_deteriorate the glut Oversupply it said .

VIENNA ( Reuters ) - OPEC sailed through a brief , calm meeting on Wednesday - even as oil futures gained Movement.up.gain to $ 110 a barrel on concern Negative_sentiment renewed violence Civil.unrest could hit Iraq 's output and worsen Situation_deteriorate a supply shortfall Shortage from chaotic Russia and sanctions-bound Iran .

The boosted Movement.up.gain deliveries will flood Europe with ultra-low sulphur diesel and worsen Situation_deteriorate the gasoline oversupply Oversupply in world markets , slamming European refinery margins .