International engineering and project management company AMEC is the worst performer of the day after an investor event. There is speculation that the group is keen to keep on buying after its recent acquisition of US peer Mactec, limiting the chance of a special dividend, according to reports.BP is among the high risers after saying that MOEX, part of the Japanese trading house Mitsui and the 10% owner of the Macondo oil well that blew up so disastrously last year, has agreed to pay the British oil giant $1.1bn in relation to the oil spill. Indian mining giant Vedanta has edged upwards after announcing its intention to issue bonds to qualified investors with the intention of, among other things, financing part of the cost of its proposed acquisition of 40% Cairn India. Heading lower is miner Rio Tinto after it revealed - in what now seems to be a regular announcement - that is has again extended its takeover offer for Africa-focused coal miner Riversdale Mining by a further two weeks. The legion of income investors holding Scottish and Southern Energy shares were kept happy as the utility company bumped up the dividend a bit more than anticipated on the back of better than expected results. The full year dividend has been hiked 7.1% to 75p from 70p last year, a shade above market expectations of a 74.8p pay-out. ---BCFTSE 100 - RisersAssociated British Foods (ABF) 1,082.00p +2.37%BP (BP.) 457.35p +2.11%Scottish & Southern Energy (SSE) 1,350.00p +1.73%National Grid (NG.) 633.00p +1.69%Investec (INVP) 494.90p +1.62%Petrofac Ltd. (PFC) 1,552.00p +1.57%Standard Chartered (STAN) 1,608.50p +1.48%ITV (ITV) 70.55p +1.22%Reckitt Benckiser Group (RB.) 3,435.00p +1.03%Essar Energy (ESSR) 432.10p +0.98%FTSE 100 - FallersLloyds Banking Group (LLOY) 51.88p -2.35%Amec (AMEC) 1,161.00p -2.19%IMI (IMI) 1,020.00p -2.02%Wolseley (WOS) 2,032.00p -1.84%Rolls-Royce Group (RR.) 636.50p -1.62%Next (NXT) 2,236.00p -1.41%Royal Bank of Scotland Group (RBS) 41.59p -1.33%Imperial Tobacco Group (IMT) 2,185.00p -1.31%Kingfisher (KGF) 281.30p -1.30%Johnson Matthey (JMAT) 2,010.00p -1.28%