LONDON (Reuters) - Oil prices fell on Thursday after OPEC and IEA reports cut back demand forecasts for this year on the back of the coronavirus outbreak in China, the world's biggest oil importer.Brent crude lost 65 cents to $55.14 a barrel by 0930 GMT while U.S. West Texas Intermediate (WTI) was down 39 cents at $50.78. Oil demand in China, the world's second-largest crude consumer, has plunged because of travel restrictions to and from the country and quarantines within it.Hubei province,..