Investors 3 Brings the Horses
API 4004120025 · Dewey County, South Dakota · Lantry field
Abandoned-Not RegulatedDry Hole
API
4004120025
Operator
Investors Drilling Ventures Inc.
County
Dewey
Field
Lantry
Location
Permit
636
Formation tops
South Dakota records 15 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Niobrara Formation | 1,390 | Cretaceous |
| Greenhorn Limestone | 2,200 | Cretaceous |
| Belle Fourche Shale | 2,280 | Cretaceous |
| Dakota Mud | 2,720 | Cretaceous |
| Fall River Sandstone | 2,790 | Cretaceous |
| Sundance Formation | 3,095 | Triassic |
| Piper Formation | 3,280 | Triassic |
| Minnelusa Formation | 3,365 | Permian/Pennsylvanian |
| Charles Formation | 4,070 | Mississippian |
| Mission Canyon Limestone | 4,180 | Mississippian |
| Lodgepole Limestone | 4,470 | Mississippian |
| Three Forks Shale | 4,740 | Devonian |
| Duperow Formation | 4,810 | Devonian |
| Stony Mountain Formation | 5,005 | Ordovician |
| Red River Formation | 5,050 | Ordovician |
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
Abandoned-Not RegulatedDry HoleSpudded
1971-08-30
Measured depth
5,118 ft
True vertical depth
5,118 ft
Location
45.057536, -101.473493
45.05754, -101.47349 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Dewey County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.