* FTSE 100 up 0.2 percent
* Uncertainty on U.S. employment data; bailout weighs on financials
* Miners, oils weak with commodity prices
By Simon Falush
LONDON, Oct 3 (Reuters) - Britain's top share index had edged higher by midday on Friday but worries about the financial system persisted and investors proved reluctant to take positions ahead of key U.S. jobs data due later in the session.
By 1037 GMT the FTSE 100 <
> was up 10.5 points at 4,880.9 in fairly thin and volatile trading after falling 1.8 percent on Thursday.Energy stocks were the heaviest weighted losers as crude oil prices <CLc1> stayed more than $5 lower than the $100 a barrel level they reached the previous session.
BG Group <BG.L> fell 3.4 percent, Cairn Energy <CNE.L> lost 3.8 percent, while Royal Dutch Shell <RDSa.L> slipped 1.5 percent.
Investors were looking ahead to key U.S. non-farm payrolls data at 1230 GMT for more clues on the health of the global economy, with analysts polled by Reuters predicting a 100,000 jobs fall in September. [
]"There are worries about the health of the U.S. economy ... that will persist even if the credit crunch issues ease slightly," said Jane Strawbridge, senior research analyst at Christows Stockbrokers in Exeter.
"I don't think the outlook for the UK consumer will improve any time soon either."
In more grim news for the UK economy, Britain's services sector contracted in September at its fastest rate since records began 12 years ago according to data from the Chartered Institute of Purchasing and Supply/Markit. [
]Financial stocks were under pressure with sentiment still overshadowed by continued strains in the money markets, with interbank rates remaining high.
Interdealer broker ICAP <IAP.L> fell 1.5 percent and London Stock Exchange <LSE.L> slid 2.9 percent. Credit Suisse cuts its rating for the UK bourse operator to "neutral" from "outperform".
However. recent heavily sold banks gained with HBOS <HBOS.L> and Lloyds TSB <LLOY.L> adding 7.6 and 4.1 percent respectively as investors became more confident that a Lloyds takeover will go through.
Barclays <BARC.L> was up 4.1 pct, while Royal Bank of Scotland <RBS.L> gained 4.2 percent.
Life assurer Old Mutual <OML.L> added 5.9 percent after it said its Swedish subsidiary Skandia AB has been ordered to pay 47 million pounds to settle a dispute over Skandia's asset management arm. [
]
DARKENING OUTLOOK
Equity investors were nervous as a darkening economic outlook and continuing uncertainty about the fate of a $700 billion bailout for the U.S. financial industry has kept the UK blue-chip index close to its lowest level in over three years.
The UK benchmark is down 4.2 percent this week and 25 percent this year.
"There are plenty of reasons for people not to have bets on the table ahead of the weekend," said Jeremy Batstone-Carr, head of private client research at Charles Stanley.
"The markets are going to be treacherous, we are close to two big hurdles, the last of which (the vote on the bailout) is after markets in Europe close... so it will take a tenacious investor to make an investment on a day like today."
Mining stocks fell with gold hit by a rising dollar and platinum near its weakest in almost three years on demand fears, while base metals like zinc and copper were also lower.
Lonmin <LMI.L> fell 2.7 percent while Kazakhmys <KAZ.L> lost 2.5 percent and Anglo American <AAL.L> fell 1.5 percent.
British Airways <BAY.L> was the biggest percentage loser in the blue-chip index, down 6.2 percent at nearly half its value at the start of the year, as investors fret over monthly traffic statistics due later.
Shares in Imperial Tobacco <IMT.L> fell 0.9 percent after Citigroup cut its rating to "hold" from "buy".
Shares in Autonomy Corporation <AUTN.L> gained 1.2 percent after the software group, recently promoted to the blue chip index, said it expected third-quarter revenue and adjusted earnings per share to be "significantly ahead" of consensus expectations. (Editing by Greg Mahlich)