A few days ago, I talked about the nebulous situation in trying to determine just how many Marcellus Shale permits there are in Pennsylvania. Many of the same concerns with permits can lead to multiple occurrences on the spud report which is the source of the drilled well data in Pennsylvania.
Without going into all the monotonous details once again, as of February 1, 2012, there were 4,534 records on the spud report, representing 4,274 distinct wells. The following are depictions of the larger number, both spatially and temporally.
Drilled Marcellus Shale wells in Pennsylvania. To hide the menus, please click on the gray compass rose and double carat (^) icons.