MIDEAST STOCKS-Mixed Q1 earnings may drive markets

DUBAI, April 28 (Reuters) - Mixed first-quarter earnings may drive Gulf stock markets on Thursday, after three Abu Dhabi banks came in on the low side of expectations but Qatari telecommunications operator Ooredoo beat estimates by a large margin. Brent oil futures climbed above $47.00 per barrel on Wednesday, to their highest level this year, in a positive signal for the Gulf. But most Gulf bourses have largely digested the improved oil price outlook and have been focusing more on corporate ear