Transaction in Own Shares

Pennon Group PLC
13 June 2007



Pennon Group Plc

13 June 2007


Transaction in Own Shares


Pennon Group Plc announces that it has today purchased through Merrill Lynch
International 126,800 ordinary shares at a price of 619.230284 pence per share.

The purchased shares will all be held in treasury. Following the above
purchase, Pennon Group Plc will hold 376,800 ordinary shares in treasury.

The total number of ordinary shares in issue (excluding shares to be held in
treasury) is 355,747,474.


END




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