Feedback post on Uncertainties impacting reserves, revenue, and costs

To distribute all n values properly through the entire probability range, utilize the fractile approach in which the incremental spacing of values is determined by dividing n + 1 into 100. For example, in a distribution where n = 6, each value will be plotted at successive increments of 14.3%—14.3%, 28.6%, 42.9%, and so on. Further to my previous comment, if I had 3 fields in a basin of 10, 20 and 30 mmbbls, why would I plot 10 25%, 10 50% and 30 75% ? I cannot understand why we would assume the 30 mmbbl field is at the 75% level (75% of the fields in the basin are less than 30 mmbbls). Please help explain. Thanks