RBC I Williams, which has the largest operation in the Piceance Basin, will add another rig in the Piceance by the end of the year, or sooner, as part of its effort to increase production in the next two years, the Grand Junction Sentinel reported Aug. 16. The company expects to remain flat this year, but will increase by 12 percent in 2011 and 16 percent by 2012. Williams currently accounts for more than one-third of the drilling in the Piceance.