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(1) KNU Definition
This KNU represents the known reserves in 2010, for the current extraction price.
The value for Oil and Natural gas has changed considerably since 2005.
(2) What the slider in G2WS does ?
The slider simply increases the linear curves that define the KNU (see illustration below), through the multiplication by a constant factor.
The Knu keeps the same shape, that of a piecewise linear function that expressed the available reserves as a function of price.
When you change the slider, the control KPI is the sum Oil and Gas reserves, as seen in 2010 and expressed in PWh (1 toe = 11.6 PWh)
The illustration on the left is median (default) value about the known reserves at today's price, at twice the price and at four times the current price.
Note that the X axis is the sell price, not the production price (which is a simplification).
(3) References
You may also ask your favorite LLM (such as Opus 4.5 or GPT 5.2) to make your opinion.
References to web data sources may be found in this page.
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