6,751 wells on file. Open this county on the map.
Depth range is measured from the wells on file, not a regional average.
| Formation | Wells | Producing | Shallowest | Average | Deepest | Cumulative |
|---|---|---|---|---|---|---|
| Mississippian | 2,289 | 625 | 425 ft | 4,789 ft | 9,999 ft | — |
| Arbuckle Group | 550 | 19 | 759 ft | 4,913 ft | 6,385 ft | — |
| Mississippi | 478 | 217 | 100 ft | 4,958 ft | 9,956 ft | — |
| Arbuckle | 306 | 105 | 100 ft | 5,050 ft | 6,824 ft | — |
| Simpson Group Lower | 293 | 9 | 2,757 ft | 4,861 ft | 5,740 ft | — |
| Simpson | 198 | 82 | 126 ft | 4,799 ft | 5,575 ft | — |
| Viola Limestone | 134 | 1 | 249 ft | 4,746 ft | 5,394 ft | — |
| Mississippi, Simpson | 96 | 64 | 4,512 ft | 5,127 ft | 5,950 ft | — |
| Lansing Group | 90 | 0 | 2,890 ft | 3,902 ft | 4,830 ft | — |
| Douglas | 81 | 19 | 600 ft | 4,022 ft | 5,058 ft | — |
| Viola | 79 | 22 | 2,130 ft | 4,831 ft | 5,680 ft | — |
| Pennsylvanian System | 69 | 1 | 352 ft | 3,914 ft | 5,177 ft | — |
| Douglas Group | 65 | 1 | 3,546 ft | 3,796 ft | 5,064 ft | — |
| Kinderhookian | 39 | 3 | 4,385 ft | 4,729 ft | 5,300 ft | — |
| Wabaunsee Group | 36 | 0 | 2,647 ft | 2,972 ft | 3,900 ft | — |
| Ordovician System | 27 | 0 | 4,436 ft | 4,847 ft | 6,014 ft | — |
| Elgin | 20 | 8 | 3,428 ft | 4,256 ft | 5,675 ft | — |
| Shawnee Group | 20 | 0 | 1,792 ft | 3,485 ft | 3,956 ft | — |
| Mississippian System | 17 | 7 | 4,322 ft | 4,719 ft | 5,355 ft | — |
| Maquoketa Shale | 16 | 2 | 4,354 ft | 4,762 ft | 5,200 ft | — |
| Toronto | 16 | 1 | 3,602 ft | 3,947 ft | 5,270 ft | — |
| Lansing-Kansas City | 14 | 0 | 3,720 ft | 4,566 ft | 5,460 ft | — |
| Lansing | 13 | 1 | 3,403 ft | 4,087 ft | 4,800 ft | — |
| Tarkio Limestone | 13 | 0 | 2,844 ft | 2,987 ft | 3,198 ft | — |
| Cherokee | 12 | 5 | 4,415 ft | 4,791 ft | 5,320 ft | — |
| Snyderville | 12 | 4 | 3,745 ft | 4,379 ft | 4,875 ft | — |
| Topeka | 12 | 0 | 3,665 ft | 4,223 ft | 5,095 ft | — |
| Marmaton | 11 | 1 | 4,420 ft | 4,922 ft | 5,250 ft | — |
| Ordovician | 11 | 11 | 4,700 ft | 4,768 ft | 4,880 ft | — |
| Xmississippi | 11 | 0 | 4,100 ft | 4,824 ft | 5,800 ft | — |
| Permian System | 10 | 0 | 315 ft | 1,048 ft | 2,543 ft | — |
| Mississippian Chat | 9 | 2 | 4,500 ft | 4,635 ft | 4,899 ft | — |
| Cretaceous System | 8 | 0 | 288 ft | 957 ft | 1,512 ft | — |
| Indian Cave | 7 | 0 | 2,635 ft | 3,440 ft | 4,250 ft | — |
| Tarkio | 7 | 0 | 2,850 ft | 3,265 ft | 4,492 ft | — |
| Admire Group | 6 | 0 | 2,705 ft | 2,813 ft | 2,932 ft | — |
| Elgin Sand | 6 | 0 | 3,649 ft | 4,064 ft | 5,200 ft | — |
| Misener | 6 | 5 | 5,143 ft | 5,365 ft | 5,537 ft | — |
| Topeka Limestone | 6 | 0 | 3,356 ft | 3,517 ft | 3,700 ft | — |
| Cowley Formation | 5 | 1 | 4,837 ft | 4,960 ft | 5,168 ft | — |
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