A guest post by George Kaplan
Remaining Reserves
The increase in remaining C&C reserves that has been seen over the last few years, and has come mostly from growth in Johan Sverdrup, has run its course and there was a significant drop in 2020, even as production continued to climb. The reserve replacement ratio has been 38%, 174%, -24%, -75% for 2017 through 2020.
The Norwegian NPD does not use the standard proven/probable/possible categories but based on the way growth occurs the dark colours are close to a P1 reserve number (producing or in development in NPD terms) and the light colour represents a resources or a P3 value (production in clarification or production likely but not yet evaluated). Growth mostly is given by moving resources from the light areas to the dark. New discoveries are usually initially added to the resources.
