July 25 (Bloomberg) -- The following is a list of companies whose shares may have unusual price changes in U.K. and Irish markets today. Stock symbols are in parentheses and prices are from the last market close.

The benchmark FTSE 100 Index declined 87.60, or 1.6 percent, to 5,362.30. The FTSE All-Share Index fell 1.6 percent and Ireland's ISEQ Index decreased 3.9 percent.

U.K. Companies:

African Diamonds Plc (AFD LN): The explorer for precious stones in Botswana plans to take to arbitration a dispute with De Beers over mining their AK6 deposit in Botswana. African Diamonds fell 5 pence, or 7.3 percent, to 63.5 pence.

AstraZeneca Plc (AZN LN): The U.K.'s second-largest drugmaker sued a Mylan Inc. unit for allegedly infringing two U.S. patents for a drug used to treat Crohn's disease, an inflammatory bowel disorder. AstraZeneca rose 31 pence, or 1.3 percent, to 2,346 pence.

Beazley Group Plc (BEZ LN): The Lloyd's of London insurer said profit fell 23 percent as claims rose and revenue declined. Beazley lost 3.5 pence, or 3 percent, to 113.75 pence.

Britvic Plc (BVIC LN): The U.K. bottler for PepsiCo Inc. soft drinks said sales rose 30 percent in the current fiscal year's first 40 weeks after it bought a C&C Group Plc unit and milder weather followed last summer's rainfall. Britvic rose 4 pence, or 1.6 percent, to 255.5 pence.

BP Plc (BP/ LN): Robert Dudley, the chief executive officer of BP Plc's Russian venture, left the country amid a shareholder dispute. Dudley, a U.S. citizen, has no plans to step down and has a legal right to continue running TNK-BP from abroad, he said in an e-mailed statement yesterday. BP fell 9.25 pence, or 1.8 percent, to 512.5 pence.

Diageo Plc (DGE LN): The world's biggest liquor maker and labor unions aim to conclude talks on plans to close some Irish plants by the end of January 2009, according to the Services Industrial Professional Technical Union. Diageo fell 4 pence, or 0.4 percent, to 902 pence.

GlaxoSmithKline Plc (GSK LN): Doctors prescribing Ziagen, a GlaxoSmithKline Plc drug for AIDS, were warned to test patients for a gene that raises the risk of a dangerous side effect and to be cautious giving the medicine to those with heart disease. GlaxoSmithKline fell 26 pence, or 2.1 percent, to 1194.5 pence.

HBOS Plc (HBOS LN): JPMorgan Chase & Co. is in talks with banks and private equity firms to acquire and break up HBOS Plc, the biggest U.K. mortgage lender, the Telegraph newspaper said. HBOS fell 3.5 pence, or 1.2 percent, to 301.5 pence.

KCOM Group Plc (KCOM LN): A seller of phone services in northern England for more than a century said first-quarter sales were lower than the year-earlier period. KCOM fell 0.75 pence, or 1.9 percent, to 39.5 pence.

Mitchells & Butlers Plc (MAB LN): The owner of the Harvester chain said sales growth slowed in the last 10 weeks as rising household bills left Britons with less to spend on drinking and eating out. The shares declined 1.5 pence, or 0.6 percent, to 262.5 pence.

Rentokil Initial Plc (RTO LN): The world's largest pest- control provider cut its forecast for annual profit after margins at its washroom services division shrank. The shares added 0.5 percent to 101.5 pence.

Rolls-Royce Group Plc (RR/ LN): The world's second-largest maker of aircraft engines was cut to ``sell'' from ``hold at Deutsche Bank AG. The shares added 2.5 pence, or 0.7 percent, to 371.25.

United Utilities Plc (UU/ LN): The U.K.'s largest publicly traded water company said it will increase its final dividend by 3.87 percent. United Utilities rose 6 pence, or 0.8 percent, to 724 pence.

To contact the reporter on this story: Howard Mustoe in London at hmustoe@bloomberg.netAdam Haigh in London at ahaigh1@bloomberg.net

Last Updated: July 25, 2008 02:32 EDT