Production Summary

Production Growth Expected in 2010

ARC’s objective is to maintain annual production, to the fullest extent possible, through the drilling of wells and other development activities while giving considerations to capital spending constraints and the economics of developing ARC’s resources. In fulfilling this objective, there may be fluctuations in production resulting from the timing of new wells coming on-stream. During the second quarter of 2010, ARC drilled 15 gross wells (15 net wells) on operated properties; 4 gross oil wells, and 11 gross natural gas wells with a 100 per cent success rate.

2010 Outlook
ARC expects that 2010 full year production will average approximately 72,500 to 74,500 boe per day, that it will drill a total of approximately 200 gross (185 net) wells on operated properties and participate in an additional 91 gross wells (18 net) to be drilled on non-operated properties. ARC estimates that total 2010 production will increase from a range of 11 to 14 per cent over 2009 production levels as a result of its 2010 drilling program and the start-up of its new gas plant in the Dawson area.

Operational Highlights

Property Summary

(Boe @ 6:1)
The following table summarizes the Trust's production by core area for the six months ended June 30, 2010.

(1) Provincial references: AB is Alberta, B.C. is British Columbia, MB is Manitoba and Sask. is Saskatchewan.