Taking advantage of the the wider screens that many of my readers have I've decided to create a companion Website organized by counties. Each menu tab focuses on a single county. Ten top counties by well count are currently published, more to come.
Adjacent counties relevant
The Ohio DNR reports well data by the surface location of a particular well. As you see on many of the county maps, wells often extend into adjacent counties, something to keep in mind since a single well might produce from more than one county. If your interests are associated near a county boundary then be sure to investigate surrounding county maps.
Please find the site here: Large County Maps