Al Jazeera: Some industry veterans believe it's the biggest development in the energy game since 1859, when the first US oil well gushed from beneath the earth in Titusville, Pennsylvania.
In changes that would have been unthinkable just five years ago, the US is set to become a net energy exporter in the next few years, thanks to the controversial process of fracking that is re-wiring geopolitics and the world of energy.
The practice of shooting steam and chemicals into shale rock formations to unlock...