ARC Resources Ltd./ARC Energy Trust Announce the August 2008 increase to the ARX Exchangeable Shares Exchange Ratio

Fri Aug 29, 1:01 PM

CALGARY, Aug. 29 /CNW/ - (AET.UN and ARX - TSX) ARC Resources Ltd. along with ARC Energy Trust announces the increase to the exchange ratio of the exchangeable shares of the corporation from 2.40779 to 2.43068. Such increase will be effective on September 15, 2008.

The following are the details on the calculation of the exchange ratio:

    
    -------------------------------------------------------------------------
                                     10 day
                                   weighted
                                    average               Effective
    Record                           trading               date of
    date of            ARC Energy   price of                the      Exchange
    ARC Energy            Trust      AET.UN               increase     ratio
    Trust       Opening  distrib-  (prior to    Increase     in        as of
    distrib-   exchange   ution    the end of  in exchange exchange effective
    ution        ratio   per unit  the month)  ratio(xx)    ratio       date
    -------------------------------------------------------------------------
    August 31,                                            September 15,
    2008      2.40779     $0.28    $29.4551     0.02289   2008       2.43068
    -------------------------------------------------------------------------

    (xx) The increase in the exchange ratio is calculated by dividing the
         ARC Energy Trust distribution per unit by the 10 day weighted
         average trading price of AET.UN and multiplying by the opening
         exchange ratio.

A holder of ARC Resources Ltd. exchangeable shares can exchange all or a portion of their holdings at any time by giving notice to their investment advisor or Computershare Investor Services at its principal transfer office in Suite 600, 530 - 8th Avenue SW, Calgary, Alberta, T2P 3S8, their telephone number is 1-800-564-6253 and their website is www.computershare.com.

ARC RESOURCES LTD.

John P. Dielwart,

President and Chief Executive Officer

Contacts

about ARC Energy Trust
please visit our website www.arcenergytrust.com or contact: Investor Relations
E-mail: ir@arcresources.com
Telephone: (403) 503-8600
Fax: (403) 509-6417
Toll Free 1-888-272-4900
ARC Resources Ltd.
2100
440 - 2nd Avenue S.W.
Calgary
AB T2P 5E9