So far , OPEC officials have not expressed a pressing concern Negative_sentiment about the fall Movement.down.loss in prices , seeing it as a temporary tailspin Movement.down.loss and predicting prices will bounce back Movement.up.gain as more Movement.up.gain seasonal demand growth kicks in due to colder weather .

Then , the financial crisis Crisis sent prices into a tailspin Movement.down.loss , forcing OPEC to make two sharp cuts Cause.movement.down.loss - as it turns out , its last formal measures for at least six years .

`` The continued escalation in trade wars trade.financial.tension and broad-based tailspin Movement.down.loss in manufacturing ... suggest that the downside risks to growth are becoming more prominent , '' Morgan Stanley said .

So far , OPEC officials have not expressed a pressing concern Negative_sentiment about the plunge Movement.down.loss in prices , seeing it as a temporary tailspin Movement.down.loss and predicting prices will climb Movement.up.gain as more Movement.up.gain seasonal demand kicks in due to colder weather .