Shell 23-23 Johnson
API 4001905018 · Butte County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole-Oil show
API
4001905018
Operator
Shell Oil Co.
County
Butte
Field
Wildcat
Location
Permit
180
Formation tops
South Dakota records 13 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Dakota Mud | 1,152 | Cretaceous |
| Morrison Formation | 1,249 | Jurassic |
| Sundance Formation | 1,400 | Triassic |
| Spearfish Formation | 1,841 | Triassic/Permian |
| Minnekahta Limestone | 2,638 | Permian |
| Opeche Shale | 2,697 | Permian |
| Minnelusa Formation | 2,820 | Permian/Pennsylvanian |
| Madison Group | 3,268 | Mississippian |
| Lodgepole Limestone | 3,636 | Mississippian |
| Englewood Limestone | 3,989 | Mississippian/Devonian |
| Red River Formation | 4,008 | Ordovician |
| Winnipeg Formation | 4,342 | Ordovician |
| Deadwood Formation | 4,490 | Ordovician/Cambrian |
A dash is a formation South Dakota records for this well without a depth.
Completion
South Dakota files 1 completion report for this well.
Vertical Well
Plugged and AbandonedDry Hole-Oil showSpudded
1956-03-08
Measured depth
4,535 ft
True vertical depth
4,535 ft
Location
44.812312, -103.966809
44.81231, -103.96681 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Butte County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.