Transaction in Own Shares

Pennon Group PLC
28 June 2007



Pennon Group Plc


28 June 2007



Transaction in Own Shares

Pennon Group Plc announces that it has today purchased through Merrill Lynch
International 150,000 ordinary shares at a price of 614.9 pence per share.

The purchased shares will all be held in treasury.  Following the above
purchase, Pennon Group Plc will hold 701,800 ordinary shares in treasury.

The total number of ordinary shares in issue (excluding shares to be held in
treasury) is 354,872,474.



END






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