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 deterioration Movement.down.loss and predicting prices will seek higher ground Movement.up.gain higher Movement.up.gain ground as higher seasonal demand kicks in due to colder weather .

The South American member of OPEC derives 96 percent of its export revenues from oil , so the slump Movement.down.loss in prices has hit exacerbated Situation_deteriorate a national economic deterioration Movement.down.loss , a foreign currency shortfall Shortage and a scarcity of basic goods .

Oil prices slipped Movement.down.loss sharply in this year and a more modest deterioration Movement.down.loss is expected over January-October .

The South American member of OPEC derives 96 percent of its export revenues from oil , so the deterioration Movement.down.loss in futures has hit exacerbated Situation_deteriorate a national economic slump Movement.down.loss , a foreign currency shortfall Shortage and a scarcity of basic goods .

There is no room for further supply deterioration Movement.down.loss . ''