Histogram plot of the number of undiscovered fields in each field size class below the limit of economic perceptibility as estimated from the area beneath the fractal curve shown in green in B. The lower limit of field size is arbitrarily set at 0.1 mmBOE.
This USGS Fact Sheet can be found at <URL:http://energy.usgs.gov/factsheets/HydroRes/fig4.html>
Maintained by L. Friedrich Last updated 24-Sept-1997