Oil firms and miners boost FTSE 100

Market trader (file picture) Image copyright Getty Images

(Close): London's leading shares rose 1% on Thursday as markets digested Opec's agreement to cut oil output.

The benchmark FTSE 100 index finished 70 points higher at 6,919.42.

Oil and mining firms dominated the list of winners, with Royal Dutch Shell and miner BHP Billiton rising more than 6%.

Outsourcing firm Capita slumped 26.7% after it said profits would be hit by one-off costs of up to £25m, because it was late to implement new IT systems for London's congestion charge.

The second-biggest faller on the index was Alton Towers owner Merlin Entertainments, which slid 5% after reporting that visitor numbers at the theme park were still recovering.

A crash on the Smiler rollercoaster in June 2015 injured 16 people.

On the currency markets, the pound was down slightly against the dollar at $1.2994 and fell 0.5% against the euro to €1.1554.