** Energy services co Wood Group top FTSE 250 riser after says in trading update sees FY in line
** Co also wins 5-yr, $750 mln contract from BP
** Stock gains despite woes in oil mkts; comments by SaudiArabian oil minister shrugging off output cut on Weds renewworries of global glut
** Shares down around 30 pct over past six months vs 3 pctdecline on FTSE 250
** Credit Suisse says Wood Group is its only"outperform"-rated stock in sector which faces uncertainoutlook; broker likes co's defensive attributes of being assetlight, with long-term cost reimbursable contracts & robustbalance sheet
** Wood Group, up almost 3 pct, outperforms peers, withPetrofac, Amec Foster Wheeler & Hunting up about 1-2 pct (RM: tricia.wright1.thomsonreuters.com@reuters.net)