The FTSE 100 index dropped 72 points, or 1.2%, to hold just above 6,010 points today, led by nerves ahead of rate decisions tomorrow and a weak start on Wall Street.
Anglo American fell 1.54% to £23.69, BP declined 1.60% to 677p and BG Group dropped 2.36% to 745.5p.
Kazakhmys fell 3.77% to £11.49 after it said copper production was lower during the first quarter after a series of disruptions.
Satellite broadcaster BSkyB also slid 2.27% to 517.5p after reporting it added 40,000 subscribers in the third quarter, slightly below consensus forecasts.
Meanwhile, Resolution, the UK’s biggest closed life fund consolidator, leapt 5.16% to 662.5p on reports it is in talks to acquire £29bn of closed life fund assets owned by Abbey in an estimated £4bn deal.
Fund manager Man Group also climbed 0.81% to £26.10 after it announced its key AHL diversified futures fund had gained nearly 2% in value over the last week.
And mortgage lender Northern Rock gained 2.43% to £10.96 after Deutsche Bank upgraded the group to "buy" from "hold" citing valuation grounds ahead of new regulations.
In the US, the Dow Jones Industrial Average index has retreated 27.3 points, or 0.2%, to 11,389.15 points after concerns the Federal Reserve may keep raising interest rates were reinforced.
Procter & Gamble has fallen $2.85, or 4.9%, to $55.26 for the worst performance in the Dow average. Revenue, excluding Gillette, increased 6% in the third quarter ended in March, the slowest rate since the three-month period ended December 2002.
Time Warner has slipped 30 cents to $17.12. First-quarter sales rose less than 1% to $10.5bn as revenue declined at the film and AOL Internet units.
Meanwhile, Qualcomm has added 18 cents to $51.24. The world's second-largest maker of chips for mobile phones raised its fiscal third-quarter profit forecast as orders climbed for handsets playing videos and surfing the internet.
NYSE Group, owner of the New York Stock Exchange, has declined $1.02 to $64.35.IFAonline
The increase in minimum AE contributions has had little impact on opt-out rates - with cessations after April increasing by less than two percentage points, data from The Pensions Regulator (TPR) shows.
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