Stone 1 Clark
API 4010320017 · Pennington County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole-Oil and Gas show
API
4010320017
Operator
M. L. Stone
County
Pennington
Field
Wildcat
Location
Permit
1403
Formation tops
South Dakota records 16 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Niobrara Formation | 1,420 | Cretaceous |
| Carlile Shale | 1,820 | Cretaceous |
| Greenhorn Limestone | 2,218 | Cretaceous |
| Belle Fourche Shale | 2,240 | Cretaceous |
| Dakota Mud | 2,495 | Cretaceous |
| Skull Creek Shale | 2,790 | Cretaceous |
| Fall River Sandstone | 2,964 | Cretaceous |
| Lakota Formation | 3,060 | Cretaceous |
| Morrison Formation | 3,100 | Jurassic |
| Sundance Formation | 3,156 | Triassic |
| Spearfish Formation | 3,355 | Triassic/Permian |
| Minnekahta Limestone | 3,468 | Permian |
| Opeche Shale | 3,493 | Permian |
| Minnelusa Formation | 3,610 | Permian/Pennsylvanian |
| 1st Leo Sandstone, Minnelusa Formation | 3,906 | Pennsylvanian |
| 2nd Leo Sandstone, Minnelusa Formation | 3,970 | Pennsylvanian |
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 and Gas showSpudded
1986-08-28
Measured depth
4,189 ft
True vertical depth
4,189 ft
Location
44.148328, -102.025066
44.14833, -102.02507 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Pennington County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.