Gulf 1 Jewett
API 4004120001 · Dewey County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole-Gas show
API
4004120001
Operator
Gulf Oil Corp.
County
Dewey
Field
Wildcat
Location
NWNW Sec 13 Twp 013N Rng 27E
Permit
431
Formation tops
South Dakota records 17 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Niobrara Formation | 1,310 | Cretaceous |
| Greenhorn Limestone | 1,940 | Cretaceous |
| Belle Fourche Shale | 2,018 | Cretaceous |
| Newcastle Sandstone | 2,331 | Cretaceous |
| Skull Creek Shale | 2,494 | Cretaceous |
| Fall River Sandstone | 2,700 | Cretaceous |
| Morrison Formation | 2,803 | Jurassic |
| Minnelusa Formation | 2,927 | Permian/Pennsylvanian |
| Roundtop Member, Minnelusa Formation | 3,204 | Pennsylvanian |
| Mission Canyon Limestone | 3,423 | Mississippian |
| Lodgepole Limestone | 3,698 | Mississippian |
| Nisku Formation | 4,067 | Devonian |
| Duperow Formation | 4,105 | Devonian |
| Red River Formation | 4,210 | Ordovician |
| Winnipeg Formation | 4,675 | Ordovician |
| Deadwood Formation | 4,788 | Ordovician/Cambrian |
| Precambrian | 4,960 | 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 Hole-Gas showSpudded
1967-09-30
Measured depth
5,343 ft
True vertical depth
5,343 ft
Location
45.094456, -100.769354
45.09446, -100.76935 · 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.