The Shale Revolution gives America another top spot. : Ethane prices recently hit a four year high. Demand is finally catching up to supply, which is ample. Although this garnered far less attention than the crude oil rally, increasing supplies of ethane are an unappreciated element of the Shale Revolution. “Dry” natural gas consists of methane, most commonly supplied to residential gas stoves but also increasingly used by power plans to produce electricity.