Ann: AWE: Offer for Adelphi extended by 1 week , page-3

re: Ann: AWE: Offer for Adelphi extended by 1... On market takeover bid by ARC Energy Limited, a wholly owned subsidiary of AWE Limited, for ordinary shares in the capital of Adelphi Energy Limited extension of
Offer Period.

As a follow up to the announcement of Monday 21 June 2010, Macquarie Securities (Australia) Limited ABN 58 002 832 126 (Macquarie) announces that Macquarie will, on behalf of ARC Energy Limited ABN 74 009 204 031 (AEL), a wholly owned subsidiary of AWE Limited ABN 70 077 897 440 (AWE),
extend the Offer Period (Offer Period) of AEL's
on-market bid for the shares in Adelphi Energy Limited (Adelphi) by 1 week.

The Offer Period is now due to close at the close of trade on Friday 16 July 2010.
For further information please refer to the attached release by AEL.

The Adelphi Shares

The Adelphi Shares which are the subject of the Offer are all fully paid ordinary shares in the capital of Adelphi which AEL does not already have a relevant interest in at the date of the Bidders Statement or such other shares which are issued during the Offer Period.

Immediately before the making of this announcement:
in so far as AEL is aware, there are 169,271,380 Adelphi Shares on issue, all of which are quoted on ASX; and
As at the close of trade on Thursday 1 July 2010, AEL had a relevant interest in 136,207,913 Adelphi Shares, which represent approximately 80.467% of all Adelphi Shares on issue in the capital of Adelphi.

Signed on behalf of Macquarie Securities (Australia) Limited.