MIDEAST STOCKS-Gulf mixed; Dubai builders down after earnings

DUBAI, May 15 (Reuters) - Gulf stock markets were mixed in early trade on Sunday with two Dubai construction firms dropping after reporting first-quarter earnings. Dubai's index fell 0.5 percent as Arabtec sank 2.0 percent after its first-quarter net loss narrowed to 46.4 million dirhams ($12.6 million) from 279.8 million dirhams a year earlier. Analysts polled by Reuters had on average forecast a loss of 123.6 million dirhams. Drake & Scull slid 2.7 percent after reporting a 61 percent fall