The Shale Revolution: Fracking Rewrote the Map

Two technologies, horizontal drilling and multi stage hydraulic fracturing, reset world oil supply after 2008. The Barnett proved the method on gas, then the Eagle Ford, Bakken and Permian scaled it to millions of barrels per day.

US crude output climbed from about 5 million barrels per day in 2008 to over 13 million by 2019, the fastest rise by one country in oil history. Shale wells decline fast, so drilling must continue constantly.

That made the sector a swing producer that responds to price within months, reshaping OPEC strategy..