The three year average well decline rates for the seven shale oil basins measured for the report range from an astounding 60-percent to 91-percent. That means over those three years, the amount of oil coming out of the wells decreases by that percentage. This translates to 43-percent to 64-percent of their estimated ultimate recovery dug out during the first three years of the well’s existence. Four of the seven shale gas basins are already in terminal decline in terms of their well productivity: the Haynesville Shale, Fayetteville Shale, Woodford Shale and Barnett Shale.
First appeared: http://journal-neo.org/2014/