Shamrock 3 Barrick
API 4011705007 · Stanley County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole
API
4011705007
Operator
Shamrock Oil and Gas Co.
County
Stanley
Field
Wildcat
Location
SWSW Sec 23 Twp 007N Rng 26E
Permit
109
Formation tops
South Dakota records 17 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Sharon Springs Member, Pierre Shale | 750 | Cretaceous |
| Carlile Shale | 1,033 | Cretaceous |
| Greenhorn Limestone | 1,410 | Cretaceous |
| Graneros | 1,435 | Cretaceous |
| Dakota Sandstone | 1,772 | Cretaceous |
| Morrison Formation | 2,050 | Jurassic |
| Sundance Formation | 2,205 | Jurassic |
| Minnekahta Limestone | 2,266 | Permian |
| Opeche Shale | 2,270 | Permian |
| Minnelusa Formation | 2,460 | Permian/Pennsylvanian |
| Mission Canyon Limestone | 3,090 | Mississippian |
| Lodgepole Limestone | 3,160 | Mississippian |
| Englewood Limestone | 3,489 | Mississippian/Devonian |
| Devonian undifferentiated | 3,550 | Devonian |
| Red River Formation | 3,658 | Ordovician |
| Winnipeg Formation | 3,959 | Ordovician |
| Precambrian | 4,061 | Precambrian |
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 HoleSpudded
1954-08-15
Measured depth
4,070 ft
True vertical depth
4,070 ft
Location
44.546916, -100.951039
44.54692, -100.95104 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Stanley County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.