Transaction in Own Shares

Pennon Group PLC
11 July 2007

Pennon Group Plc

11 July 2007


Transaction in Own Shares



Pennon Group Plc announces that it has today purchased through Merrill Lynch
International 26,646 ordinary shares at a price of 608.1045 pence per share.

The purchased shares will all be held in treasury. Following the above purchase
and non-cancellation of such equity shares, Pennon Group Plc will hold 1,569,118
ordinary shares in treasury and a total of 353,595,156 ordinary shares will be
in issue (excluding shares to be held in treasury).




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