Piceance

The Piceance basin in northwest Colorado is characterized by thick natural gas accumulations primarily in the Williams Fork formation. We entered the Piceance basin in 2001 with the acquisition of the Mamm Creek field, where production has increased significantly.

We added to our position in this area when we acquired Tom Brown Inc. in 2004.

In 2011 we drilled approximately 141 net wells in our Piceance resource play.

Piceance production (MMcfe/d)

2005	2006	2007	2008	2009	2010	2011
325	341	364	400	373	458	446