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Visualizing Marcellus (PA) oil & gas production (through October)

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Marcellus (PA) – update through October 2018

This article contains still images from the interactive dashboards available in the original blog post . To follow the instructions in this article, please use the interactive dashboards. Furthermore, they allow you to uncover other insights as well.


This interactive presentation contains the latest gas (and a little oil) production data, from all 8,567 horizontal wells in Pennsylvania that started producing since 2010, through October.


Visit ShaleProfile blog  to explore the full interactive dashboards

New production records have been set in the 2nd half of every year since 2010, and 2018 was no different. Gas production in October from horizontal wells came in at 17.6 Bcf/d, about 20% higher than October 2017 (14.1 Bcf/d). The 687 wells that started production in the first 10 months of 2010 already contributed more than 1/3rd of total gas production in October (6 Bcf/d).



Well productivity made a big gain in 2017 (see ‘Well quality’ tab), but it did not rise much further in 2018, based on preliminary data. Newer wells recover on average more than 4 Bcf in the first 2 years on production, compared with 3 Bcf from wells that started in 2016.



All major operators increased production in 2018, except Chesapeake (‘Top operators’).

The ‘Advanced Insights’ presentation is displayed below:



This “Ultimate Return” overview shows the relationship between gas production rates, and cumulative gas production, averaged for all horizontal wells that came online in a certain year.

The improved performance over the past years is clearly visible here. If you change the ‘Show wells by’ to ‘quarter’, you can see more recent and granular data. It will also reveal that newer wells peak at a level of over 12,000 Mcf/d, more than three times the rate of the wells that started in 2012.



The 2nd tab (‘Cumulative production ranking’), ranks all counties in Pennsylvania by cumulative gas production. If you change the ranking to ‘Well’, you’ll see the cumulative production for each of those 8,500+ wells. The most productive one is above 20 Bcf.


Later this week we will have a new post on the Permian.

We wish you all a Happy New Year!


Production data is subject to revisions. For this presentation, I used data gathered from the following sources:

  • Pennsylvania Department of Environmental Protection


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