MIDEAST STOCKS-Company earnings, news support UAE; Saudi, Egypt underperform

* Dubai's DSI rises despite wider Q4 net loss * DXB Entertainments rises on first yearly revenue * Arabtec slides for second day * Dana Gas up on award in dispute with Kurdistan * Kuwait rises in heavy trade DUBAI, Feb 14 (Reuters) - Corporate earnings and other news from companies in Dubai helped that market rise on Tuesday, while Abu Dhabi was supported by earnings at Union National Bank and an arbitration judgement in favour of Dana Gas. The builder reported a net loss in the fourth quarter o