Graph# 4
Cumulative Production Family vs Time
Data from: EIA, and Cambell-Laherrre 
Best fit to 1960 - 1999 EIA data
Best fit: 2285.65 Gb, Nine (9) logistic equations
1900 = year zero (0)

To generate values the ETP model requires the rate of crude mass flow. Crude's mass flow rate is derived by matching a logistic curve to the EIA's 1960 - 1999 data set. 1999 is used because it was before there was large scale production of Canadian bitumen. Bitumen might have effected the energy/ $barrel relationship derived. Support for the hypothesis that conventional crude production has been a distribution described by a logistic curve is discussed in several places throughout the study.