Rystad Energy - Energy Knowledge House
Rystad Energy - Energy Knowledge House

Press Release

Permian has the lowest oil decline rates

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Older tight oil wells decline by 20% per year without material intervention, according to Rystad Energy.

Contrary to common belief, the Permian Basin systematically offers the lowest oil decline rates, along with the Bakken Shale. In turn, the Eagle Ford and DJ basins exhibit steeper decline rates throughout the first eight years of production across most vintages.

Graph showing annual oil production decline for horizontal wells

Rystad Energy has examined all horizontal oil-producing wells in the Bakken, Eagle Ford, Permian and DJ Basins, turned-in-line between 2011 and 2017 with at least 24 months of reported production. The resulting sample includes 146,158 annualized production data points from 46,188 wells.



Artem Abramov
Partner and Head of Shale Research
Phone: +47 24 00 42 00

Morten Bertelsen
Vice President of Media Relations
Phone: +47 951 98 742

About Rystad Energy
Rystad Energy is an independent energy research and business intelligence company providing data, tools, analytics and consultancy services to the global energy industry. Our products and services cover energy fundamentals and the global and regional upstream, oilfield services and renewable energy industries, tailored to analysts, managers and executives alike. Rystad Energy’s headquarters are located in Oslo, Norway with offices in London, New York, Houston, Stavanger, Moscow, Rio de Janeiro, Singapore, Bangalore, Tokyo, Sydney and Dubai.