The scientific study of peak oil began in the 1950′s, when Shell geophysicist M. King Hubbert reported on the evolution of production rates in oil and gas fields. In a 1956 paper Hubbert suggested that oil production in a particular region would approximate a bell curve, increasing exponentially during the early stages of production before eventually slowing, reaching a peak when approximately half of a field had been extracted, and then going into terminal production decline.

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