The FTSE 100 Index has risen 14.4 points, or 0.2%, to 6089.8 points this morning, led by by International Power.
International Power, the owner of power plants in 17 countries, has climbed 1.6% to 209p. The company has agreed to buy a Texas coal-fired plant from Sempra Energy and Riverstone Holdings.
Centrica has added 1.3% to 295p, while Imperial Chemical Industries has gained 2.3% to 371p.
In Japan, the Nikkei 225 Stock Average slid 32.59 points, or 0.2%, to 17,317.53 points, led by consumer lenders on concern profits will be crimped after the Nihon Keizai newspaper reported they have started cutting the interest they charge.
Credit Saison dropped 200 yen, or 3.3%, to 5,920 yen, Aiful tumbled 360 yen, or 5.4%, to 6,320 yen and Marui slid 170 yen, or 7.1%, to 2,220 yen.
But energy-related companies such as Cosmo Oil and Mitsubishi climbed on speculation rising oil prices will boost profits after crude oil prices rose to a record $72.40.
Cosmo rose 16 yen, or 2.4%, to 679 yen, Mitsubishi gained 85 yen, or 3%, to 2,920 yen and Mitsui added 20 yen, or 1.1%, to 1,824 yen.
In the US, the Dow Jones industrial average rose 10 points, or 0.09%, to 11,278.77 points as solid earnings offset some worries about inflation.
The Dow got its biggest lift from industrial conglomerate United Technologies, which reported stronger-than-expected earnings and raised its full-year profit outlook. United Technologies shares climbed 6.6%, or $3.90, to $62.80.
Energy-related shares also climbed, with Exxon Mobil up 1.2%, or 76 cents, at $64.30 and Schlumberger up 5.1%, or $3.27, to $67.75.IFAonline
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