Greater Sierra

At our Greater Sierra resource play in northeast British Columbia, we are focused on the continued development of the Jean Marie geological formation and on the successful completion of the commercial pilot program in the Horn River Basin.

Using multi-leg, horizontal drilling technology we have developed approximately 30 percent of our two million net acres in the Jean Marie formation.

At the end of 2010, we had approximately 264,000 net acres in the emerging Devonian shale formation of the Horn River. The Horn River formation shale's (Muskwa, Otter Park and Evie) in our focus area are up to 500 feet thick. As of December 31, 2010 these shales have been evaluated with 90 gross wells, 43 of which have been placed on long-term production (1 vertical and 42 horizontal).

In 2010 we drilled 47 net wells in our Greater Sierra resource play.

Greater Sierra production (MMcfe/d)

2005	2006	2007	2008	2009	2010
223	218	216	226	204	236