ARC Resources Ltd. / ARC Energy Trust Announce the January 2009 increase to the ARX Exchangeable Shares Exchange Ratio

CALGARY, Feb. 3 /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 2.53682 to 2.55492. Such increase
will be effective on February 16, 2009. The following are the details on the
calculation of the exchange ratio:

<<
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10 day
Record weighted Effective
date of average date
ARC ARC Energy trading of the Exchange
Energy Trust price of Increase increase ratio as
Trust Opening distrib- AET.UN (prior in in of
distrib- exchange ution to the end exchange exchange effective
ution ratio per unit of the month) ratio(xx) ratio date
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January 2.53682 $0.12 $16.8233 0.01810 February 2.55492
31, 2009 16, 2009
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(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
>>

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