Reuters | Oil up in choppy trade as OPEC heavyweights head to Vienna Reuters LONDON Oil prices gained more than two percent on Monday in volatile trading after falling as much as two percent, recouping losses as the market reacted to the shaky prospect of major producers being able to agree output cuts at a meeting on Wednesday. Oil prices rise 2% in choppy trade as Iraq voices support for OPEC deal How Iran, Russia Could Derail Oil-Production Deal Opec meeting to focus on Donald Trump amid fears of falling oil prices |