Âé¶¹´«Ã½

Earth

Have we underestimated total oil reserves?

11 June 2008

Âé¶¹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Black gold might not be as scarce as we thought. This week oil prices escalated to a record $139 per barrel, but that may partly be because the amount of available oil in known reserves has been significantly underestimated.

So says Richard Pike, a former oil-industry adviser and chief executive of the UK Royal Society of Chemistry, who blames flawed statistical calculations.

Oil companies produce a bell-shaped probability distribution for how much each oil reservoir might hold, and then quote as an indicator of the reservoir’s capacity a figure they are 90 per cent certain they can exceed. When publishing…

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