The FTSE 100 Index has added 16.2 points, or 0.3%, to 6098.3 points this morning, led by BG Group after the oil and gas producer said first-quarter profit more than doubled.
BG Group has advanced 1.3% to 773.5p. Net income in the three months ended March jumped to £578m from £259m a year earlier as prices rose and it increased sales of liquefied natural gas to Europe and Japan.
Rio Tinto has climbed 1.2% to 3,190p and BHP Billiton has added 1.2% to 1,184p after copper prices climbed on concern the Bolivian government may seize mining assets.
In Japan, the Nikkei 225 Stock Average closed up 228.06 points, or 1.3%, at 17,153.77 points as a pause in the yen's rise against the dollar led investors to buy back shares.
Bridgestone surged 4.9% to 2,890 yen after the tire maker reported strong earnings results for the January-March quarter and lifted its estimates for the January-June first half.
Automakers also gained, with Honda up 3.45% to 8,400 yen and Toyota 1.64% higher at 6,800 yen.
Canon hit a new year-to-date high, up 3.24% to 8,930 yen, on an upbeat earnings report.
In the US, the Dow Jones industrial average rose 73.16 points, or 0.64%, to end above 11,400 points, at 11,416.45, for the first time since early 2000 as a jump in oil prices boosted major energy shares.
Interest-rate-sensitive stocks such as financial shares rebounded as investors looked past interest rate concerns fueled by a report on CNBC television the day before.
Shares of JPMorgan Chase rose 1.6%, or 72 cents, to $45.50.
Crude oil for June delivery settled 91 cents higher at $74.61 in New York, taking shares of Exxon Mobil up 2%, or $1.25, to $64.67 and Chevron up 2.7%, or $1.63, to $62.80.
On the downside, Hovnanian Enterprises fell 6.2%, or $2.39, to $36.39 after the US March pending home sales index fell 1.2%.IFAonline
Partner Insight: For Blackfinch, the arrival of its IHT portfolio services was a 'natural evolution' in the group's offering and points to an established track record of returning cash to investors.
Senior Managers Regime
Interest rate outlook unchaged
FCA made demands last week