Marcellus (PA) & Utica (OH) - update until 2016-06
09 / 09 / 2016
This presentation contains gas (and a little oil) production from horizontal wells in the Marcellus (Pennsylvania), and the Utica (Ohio) basins, which I will call together “Appalachia”. Production until June 2016 is included, from 8215 horizontal wells that started production.
This is the first time that I include production information from the state Ohio as well (since 2011), and I will continue reporting this state in the future. However, Ohio releases production information only once per quarter, so only once in 3 months will I present these results.
Together the horizontal wells in these 2 states produced recently almost 25% of the total natural gas production in the U.S. (almost 18 BCF/d as you can see above, vs just over 72 BCF/d for the whole US) .
If you “group production by” state, you can see the difference in production between these 2 states. You’ll see that gas production is much larger in Pennsylvania, while oil production is larger in Ohio (switch “product” to oil to see this).
The formation in which a well has been drilled is not always clear in the data from these 2 states. In Pennsylvania, I take the simple assumption that all wells are in the Marcellus, while in Ohio I sometimes report the formations “Other” and “Unknown”..
I will give limited comments this time, and let the presentation speak for itself. One observation I’ll share is that the drilled, but uncompleted wells (“DUCs”) has been steadily falling since the beginning of 2015. You can see this in the “Well status” tab, when you select only “2. DUC”.
One further note on the production in Ohio: In 2011 & 2012 only annual well production has been made available, and quarterly production per well ever since. I use an algorithm that divides this well production over individual months, according to a typical decline profile. The total production for each well matches exactly what Ohio reports for the full period, for each well.
Next week Friday (Sep 16th), I plan to post another update on North Dakota.
For this presentation, I used data gathered from the following sources:
- Pennsylvania DEP
- Ohio DNR
The above presentation has many interactive features:
- You can click through the blocks on the top to see the slides.
- Each slide has filters that can be set, e.g. to select individual or groups of operators. You can first click “all” to deselect all items. You have to click the “apply” button at the bottom to enforce the changes. After that, click anywhere on the presentation.
- You can switch between different products (e.g. natural gas, or oil), by using the “Product” selection, present in all tabs.
- Tooltips are shown by just hovering the mouse over parts of the presentation.
- You can move the map around, and zoom in/out.
- By clicking on the legend you can highlight selected items, and include or exclude categories.
- Note that filters & selections have to be set for each tab separately.
- The operator who currently owns the well is designated by “operator (current)”. The operator who operated a well in a past month is designated by “operator (actual)”. This distinction is useful when the ownership of a well changed over time.
- If you have any questions on how to use the interactivity, or how to analyze specific questions, please don’t hesitate to ask.