Serco, the outsourcing company whose activities include running prisons and London's Docklands Light Railway, has announced the acquisition of India-based service provider Intelenet for up to £385m, boosting shares higher on Tuesday.Prime Markets thinks that the purchase will "safely propel" Serco's shares higher, due to its solid performance from existing markets combined with the added exposure to emerging market growth.Another outsourcer that is wanted is Capita after it bought specialist healthcare recruitment firm Team24 for an initial £24m, with up to £2m more payable depending on the firm's performance in the year to 31 March, 2012. Standard Chartered's share price is firmed after the stock was upgraded to a 'buy', from 'neutral', by Nomura, which says that the Asia-focused bank is delivering growth in a challenging environment. Irish oil giant Tullow Oil is higher after announcing that it is to seek a secondary listing of its shares on the Ghana Stock Exchange. The listing will coincide with the offer of 4m Tullow shares in Ghana. The price of the offering will be announced on Monday, 13 June. Germany's decision to exit all of its nuclear power plants could prompt greater activity in North Sea offshore wind operations, leading to lower costs, which could help London-listed energy groups Centrica and Scottish & Southern Energy, according to Matrix. Both stocks are trading higher.---BCFTSE 100 - RisersWolseley (WOS) 2,067.00p +3.82%Johnson Matthey (JMAT) 2,095.00p +3.46%Serco Group (SRP) 576.00p +3.32%Aggreko (AGK) 1,871.00p +3.14%Experian (EXPN) 800.00p +3.09%Fresnillo (FRES) 1,451.00p +2.91%Admiral Group (ADM) 1,730.00p +2.55%Capital Shopping Centres Group (CSCG) 411.20p +2.47%Intertek Group (ITRK) 2,046.00p +2.45%ITV (ITV) 71.20p +2.30%FTSE 100 - FallersCairn Energy (CNE) 436.20p -1.40%Lloyds Banking Group (LLOY) 52.26p -0.95%Morrison (Wm) Supermarkets (MRW) 304.40p -0.49%BG Group (BG.) 1,404.50p -0.43%Smith & Nephew (SN.) 675.00p -0.30%GlaxoSmithKline (GSK) 1,313.50p -0.27%Severn Trent (SVT) 1,513.00p -0.26%United Utilities Group (UU.) 622.50p -0.24%John Wood Group (WG.) 632.50p -0.24%British Sky Broadcasting Group (BSY) 834.50p 0.00%