The FTSE 100 Index has gained 35.2 points, or 0.6%, to 5999.80 points this morning, led by mining companies.
BHP Billiton has gained 4.3% to 1,096.5p and Rio Tinto has advanced 2.6% to 2,999p.
BG Group has also risen 2.7% to 739p. The company said business in its first quarter was ahead of analyst forecasts because of a "strong performance" of its liquefied natural gas business.
In Japan, the Nikkei 225 Stock Average gained 273.65 points, or 1.6%, to 17,333.31 points, led by manufacturers such as Canon and Toyota Motor.
Canon gained 150 yen, or 1.9%, to 7,940, Toyota advanced 80 yen, or 1.2%, to 6,510 and Honda Motor added 100 yen, or 1.4%, to 7,390.
Lenders including Mitsubishi UFJ Financial Group gained after the Nihon Keizai newspaper reported the nation's six biggest banks and nine largest life insurers doubled their unrealized gains from stockholdings in the 2005 fiscal year.
Mitsubishi UFJ gained 40,000 yen, or 2.2%, to 1.84m, Mizuho advanced 21,000 yen, or 2.2%, to 984,000 and Millea Holdings gained 70,000 yen, or 3%, to 2.4m.
In the US, the Dow Jones industrial average fell 41.38 points, or 0.37%, to end at 11,109.32 points on Friday as a drop in crude oil prices drove energy shares down and offset the positive influence of data showing tame US inflation and healthy economic growth.
ConocoPhillips fell 2.1%, or $1.33, to $63.15, while Exxon Mobil lost 0.4%, or 26 cents, to $60.86 and Schlumberger's stock shed 1.3%, or $1.66, to $126.57.
Oil's drop gave some relief to airline stocks, which were battered earlier in the week when crude rose above $67 a barrel.
Shares of US Airways Group shot up 6.7%, or $2.51, to $40, while AMR, the parent of American Airlines, rose 3.6%, or 94 cents, to $27.05.
Shares of H&R Block slid after the tax preparer restated its annual financial statements, reducing earnings to reflect corrections in reporting its income taxes.IFAonline
Two global vehicles
'Further plug advice gap'
Must appoint separate CEOs and boards
Advisers do come out well
Will report to Mark Till