The share price of Heritage Oil surged today after the company announced that it had received a takeover offer from Energy Investments Global, part of Qatar's Al Mirqab Capital. The company also reported its full-year results which unveiled that profits doubled in 2013 on the back of record production from its flagship OML 30 lock in Nigeria.Ladbrokes climbed after saying it would maintain its dividend payment, despite posting a decline in its first-quarter operating profit. The confirmantion underlines the bookmaker's belief it will return to growth in the second half of the year. Strong performances in Asia and its casino business drove total quarterly revenues higher at Playtech in the first three months of 2014, lifting shares higher. The online gaming software supplier said a group revenue increase of 17.4% from €87.5m to €102.7m was largely thanks to a quarterly Casino revenue rose 25.6% from €44.1m to €55.4m. Meanwhile, technology group CSR shares fell into the bottom spot after its first-quarter revenue fell 24% to $180.8m.Home Retail failed to impress despite reporting a return to annual sales and profit growth thanks to like-for-like improvements at both Argos and Homebase. However, including exceptional items, statutory pre-tax profits fell 41.1% mainly due to restructuring charges at Argos and a payment protection insurance provision. FTSE 250 - RisersHeritage Oil (HOIL) 314.00p +22.85%Aveva Group (AVV) 2,112.00p +8.03%Ladbrokes (LAD) 153.60p +7.11%Ophir Energy (OPHR) 268.50p +6.89%Playtech (PTEC) 664.50p +4.07%Soco International (SIA) 431.60p +3.13%Taylor Wimpey (TW.) 105.70p +3.02%Bellway (BWY) 1,438.00p +2.79%Cairn Energy (CNE) 184.60p +2.44%Henderson Group (HGG) 249.90p +2.33%FTSE 250 - FallersCSR (CSR) 589.50p -8.11%IP Group (IPO) 171.50p -4.72%Supergroup (SGP) 1,318.00p -4.01%SIG (SHI) 191.40p -3.87%Hunting (HTG) 849.00p -3.69%ICAP (IAP) 410.10p -3.51%Polymetal International (POLY) 567.50p -3.49%Petra Diamonds Ltd.(DI) (PDL) 162.50p -3.27%Elementis (ELM) 276.60p -3.15%Spirent Communications (SPT) 96.35p -2.97%NR