Investors 6 Holloway
API 4004120008 · Dewey County, South Dakota · Lantry field
Plugged and AbandonedDry Hole-Oil show
API
4004120008
Operator
Investors Drilling Ventures Inc.
County
Dewey
Field
Lantry
Location
Permit
583
Formation tops
South Dakota records 15 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Niobrara Formation | 1,400 | Cretaceous |
| Greenhorn Limestone | 2,185 | Cretaceous |
| Dakota Mud | 2,690 | Cretaceous |
| Skull Creek Shale | 2,780 | Cretaceous |
| Fall River Sandstone | 2,940 | Cretaceous |
| Sundance Formation | 3,080 | Triassic |
| Piper Formation | 3,260 | Triassic |
| Minnelusa Formation | 3,340 | Permian/Pennsylvanian |
| Charles Formation | 4,045 | Mississippian |
| Mission Canyon Limestone | 4,150 | Mississippian |
| Lodgepole Limestone | 4,420 | Mississippian |
| Englewood Limestone | 4,780 | Mississippian/Devonian |
| Three Forks Shale | 4,880 | Devonian |
| Interlake Dolomite | 4,962 | Silurian |
| Red River Formation | 5,004 | 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
1970-11-15
Measured depth
5,068 ft
True vertical depth
5,068 ft
Location
45.032188, -101.454494
45.03219, -101.45449 · 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.