IT infrastructure services provider Computacenter falls back even after it reported a better than expected 26% rise in full-year pre-tax profit and said it enters 2010 in good shape.A North Sea oil find has boosted shares in Premier Oil. The oil company has found oil at its wildcat well 34/5-1 S on the Norwegian BlÄbaer exploration, near the Snorre field, although another target area turned out to be dry.Pub groups are going well after JD Wetherspoon reinstated its dividend as it reported half year sales and profits at record levels. Enterprise Inns, Punch Taverns and Greene King are in the top 10.FTSE 250 - RisersEnterprise Inns (ETI) 119.20p +6.05%Pace (PIC) 186.60p +4.54%Atkins (WS) (ATK) 599.50p +3.27%Evolution Group (EVG) 118.10p +3.14%Spirent Communications (SPT) 123.70p +3.08%HMV Group (HMV) 79.00p +2.86%Punch Taverns (PUB) 82.80p +2.86%Wellstream Holdings (WSM) 537.00p +2.68%Greene King (GNK) 432.10p +2.64%Premier Oil (PMO) 1,167.00p +2.55%FTSE 250 - FallersComputacenter (CCC) 312.70p -4.29%Hochschild Mining (HOC) 287.60p -4.04%Tullett Prebon (TLPR) 376.40p -3.49%Telecity Group (TCY) 420.30p -3.16%Melrose Resources (MRS) 307.00p -3.15%Shanks Group (SKS) 105.40p -2.77%Aquarius Platinum Ltd. (AQP) 389.40p -2.70%Davis Service Group (DVSG) 413.30p -2.68%Inchcape (INCH) 27.58p -2.41%Laird (LRD) 126.40p -2.32%