By Simon Kennedy

LONDON (Dow Jones)--U.K. shares posted modest declines Wednesday, as weakness for oil producers offset gains for insurers, while investors surveyed fundraising announcements from several companies, including home builders Barratt Developments and Redrow.

Failing to hold early but tentative gains, the benchmark FTSE 100 index slipped 0.1% to 5,139.37, with the market failing to move much in either direction ahead of a U.S. interest rate decision.

Oil producers including Royal Dutch Shell , which fell 1.6%, lost ground after disappointing U.S. inventories data.

Several insurers, however, posted solid gains, helped by a positive note on the sector from Cazenove, which said improving fundamentals and a more benign environment for investments among other factors could provide upside for firms.

Prudential (PUK) rose 4% and Aviva rose 0.1% after the broker upgraded both insurers to outperform from in-line. Standard Life rose 1.9%.

Fashion chain Burberry was another gainer, jumping 5.4% following positive press reports about its show late Tuesday for London Fashion Week.

Shares in Barratt and Redrow had a volatile day, with both rising more than 4% at one point after the home builders said they will sell around 870 million pounds ($1.42 billion) of new shares mostly to existing investors.

Both firms had been widely expected to raise cash to strengthen their balance sheets following the slump in the U.K. housing markets. The total amount being raised is a little more than analysts had been expecting, but both firms also said they had renegotiated the terms of their outstanding debt, which helped boost their shares.

Barratt also said that it swung to a net loss of 468.6 million pounds in the year to June 30, from a profit of 86.4 million pounds a year earlier. Total deliveries were down 29%, but the firm said reservations in the eleven weeks since the end of the fiscal year have been ahead of its expectations.

Barratt closed 2.7% higher while Redrow fell 2.7%.

"Whilst a rights issue will definitely put the group on a more stable footing and give Barratt the confidence to go out and purchase land, at this stage we would continue to prefer Bovis and Bellway and companies with cash positive balance sheets," said Panmure Gordon analyst Rachael Waring.

Also on the downside, shares in real estate group Liberty International dropped 10.1% to 507 pence after selling 56 million shares at 500 pence each in a deal that will allow it to resume investment in its regional shopping centers and central London assets.

The group's investment plans had been on hold for the last year because of the crisis in financial and property markets.

Yell Group also fell sharply, losing 13.5%, after it said its proposed new terms to its lenders, including extending its debt maturity and applying new interest rates to its loans.

In earnings news, video game and hardware retailer Game Group dropped 0.2%.

The company said its first-half net profit slumped by around two-thirds to 7.7 million pounds as it suffered from comparisons with a strong 2008, when Mario Kart, Wii Fit and Grand Theft Auto IV were released.

Services Desk; Dow Jones Newswires; +44-20-7842-9319/9274