The tussle for supremacy between OPEC and U.S. shale drillers is killing off older oil fields at the fastest pace in almost a quarter century. That could hurt the industry once the current glut has faded.The three-year price slump triggered by the battle for market share choked off funds for aging deposits elsewhere, accelerating their decline. Output at older fields from China to North America — making up a third of world supply — fell 5.7 percent last year, the most since 1992, according to Rystad Energy AS. It’ll drop about 6 percent in 2017 if oil stays at current prices, the consultant said.

Source: Oil Fields Pumping a Third of Supply Die Fastest in 24 Years – Bloomberg