July 2, 2021

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Green River is a productive basin located in Wyoming and Northern Colorado in the Rockies. Active development of tight gas using horizontal wells and fracking started after 2005. Development slowed down after 2015 when economics of Green River became less attractive compared to other basins, such as Marcellus and Utica.

Green River  raw gas production dropped from its peak of 3 Bcf/d in 2009 to less than 2 Bcf/d in 2020. Production will continue to drop and reach 1 Bcf/d in 2040. Average first year decline in 2020 was 78%.

Green River Gas Well Initial Productivity

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The average new well initial productivity in 2020 was 3.8 MMcf/d and is expected to decline to 2.2 MMcf/d by 2040.

Green River Well Count

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Approximately 8500 wells have been drilled since 2000.

Green River Gas EUR 

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The Estimated Ultimate Recovery (EUR) has averaged 2.5 Bcf/well between 2010 and 2020, peaking at 3.1 in 2014.

Green River Map