Ex-divs to take 0.8 points off FTSE 100 on Dec. 17

LONDON, Dec 15 (Reuters) - The following FTSE 100 companies will go

ex-dividend on Thursday, after which investors will no longer qualify for the

latest dividend payout.

According to Reuters calculations at current market prices, the effect of

the resulting adjustment to prices would take 0.83 points off the index.

COMPANY (RIC) DIVIDEND IMPACT

(pence)

BERKELEY GRP 100.00 0.49

UNITED UTILITIES GRP 12.81 0.34

Among FTSE 250 companies going ex-dividend are:

(RIC) COMPANY DIVIDEND

(pence)

BETFAIR GROUP (LSE: BET.L - news) 15.00

GREENE KING (Other OTC: GKNGY - news) 8.45

HALFORDS GROUP (LSE: HFD.L - news) 5.66

MARSTON'S (Other OTC: UBGXF - news) 4.50

MERCANTILE INV 10.00

MITIE GRP.

5.40

ZOOPLA PROPERTY (LSE: ZPLA.L - news) 2.50

(Reporting by Atul Prakash; Editing by Sudip Kar-Gupta)