The Hubbert Curve is a bell curve that says oil wells follow a predictable cycle in which output rises, stabilizes and then dwindles to nothing over a period of years. The man behind the curve, Shell geologist M. King Hubbert, also used it as a tool to speculate on global oil production. He predicted that oil companies would discover the larger, easily exploited oil fields first and then switch to smaller, deeper fields when the larger ones stopped producing as much.
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