2Crude, if you get a moment, could you clarify the difference between gross and net wells drilled, and/or explain the significance of all of the following info:

"The program included drilling of 138 gross (128.5 net) core holes and observation wells in the oil sands and 20 gross (16.5 net) conventional wells, which resulted in 13 gross (10.5 net) natural gas wells and 3 gross (2 net) crude oil wells. This results in a success ratio of 76 percent, calculated on a net well basis. The full impact of the results of this activity will be further evaluated in our mid-year 2008 reserve report, which will take into account results from drilling at Great Divide, Halfway Creek and from our successful conventional drilling this year during early 2008."