Investors 1 Summer Cook
API 4004120011 · Dewey County, South Dakota · Lantry field
Plugged and AbandonedDry Hole-Oil show
API
4004120011
Operator
Investors Drilling Ventures Inc.
County
Dewey
Field
Lantry
Location
Permit
609
Formation tops
South Dakota records 17 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Niobrara Formation | 1,705 | Cretaceous |
| Greenhorn Limestone | 2,222 | Cretaceous |
| Newcastle Sandstone | 2,730 | Cretaceous |
| Skull Creek Shale | 2,805 | Cretaceous |
| Fall River Sandstone | 2,975 | Cretaceous |
| Sundance Formation | 3,167 | Triassic |
| Piper Formation | 3,280 | Triassic |
| Minnelusa Formation | 3,370 | Permian/Pennsylvanian |
| Bell Sandstone, Minnelusa Formation | 4,018 | Pennsylvanian |
| Charles Formation | 4,060 | Mississippian |
| Mission Canyon Limestone | 4,340 | Mississippian |
| Lodgepole Limestone | 4,550 | Mississippian |
| Three Forks Shale | 4,740 | Devonian |
| Nisku Formation | 4,825 | Devonian |
| Duperow Formation | 4,875 | Devonian |
| Stony Mountain Formation | 5,015 | Ordovician |
| Red River Formation | 5,061 | 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
Plugged and AbandonedDry Hole-Oil showSpudded
1970-11-09
Completed
1973-07-28
Measured depth
5,117 ft
True vertical depth
5,117 ft
Location
45.013674, -101.469283
45.01367, -101.46928 · 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.