State Royalty 1 State
API 4006305128 · Harding County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole-Oil and Gas show
API
4006305128
Operator
State Royalty Petroleum Co.
County
Harding
Field
Wildcat
Location
Permit
H40-5
Formation tops
South Dakota records 22 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Pierre Shale | 10 | Cretaceous |
| Niobrara Formation | 2,020 | Cretaceous |
| Carlile Shale | 2,475 | Cretaceous |
| Greenhorn Limestone | 2,685 | Cretaceous |
| Graneros | 3,080 | Cretaceous |
| Mowry Shale | 3,290 | Cretaceous |
| Newcastle Sandstone | 3,425 | Cretaceous |
| Skull Creek Shale | 3,550 | Cretaceous |
| Fall River Sandstone | 3,790 | Cretaceous |
| Lakota Formation | 3,850 | Cretaceous |
| Morrison Formation | 3,980 | Jurassic |
| Sundance Formation | 4,130 | Triassic |
| Piper Formation | 4,625 | Triassic |
| Spearfish Formation | 4,710 | Triassic/Permian |
| Minnekahta Limestone | 5,188 | Permian |
| Opeche Shale | 5,230 | Permian |
| Minnelusa Formation | 5,310 | Permian/Pennsylvanian |
| Madison Group | 5,785 | Mississippian |
| Englewood Limestone | 7,180 | Mississippian/Devonian |
| Red River Formation | 7,240 | Ordovician |
| Winnipeg Formation | 7,740 | Ordovician |
| Deadwood Formation | 7,820 | 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 and Gas showSpudded
1939-09-02
Measured depth
7,908 ft
True vertical depth
7,908 ft
Location
45.482150, -103.964207
45.48215, -103.96421 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Harding County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.