Gulf 1 Olson
API 4009505000 · Mellette County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole-Gas show
API
4009505000
Operator
Gulf Oil Corp.
County
Mellette
Field
Wildcat
Location
Permit
362
Formation tops
South Dakota records 14 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Niobrara Formation | 690 | Cretaceous |
| Greenhorn Limestone | 1,210 | Cretaceous |
| Dakota Mud | 1,540 | Cretaceous |
| Skull Creek Shale | 1,835 | Cretaceous |
| Fall River Sandstone | 1,943 | Cretaceous |
| Lakota Formation | 2,075 | Cretaceous |
| Minnelusa Formation | 2,308 | Permian/Pennsylvanian |
| 3rd Leo Sandstone, Minnelusa Formation | 2,470 | Pennsylvanian |
| Madison Group | 2,775 | Mississippian |
| Duperow Formation | 3,005 | Devonian |
| Red River Formation | 3,022 | Ordovician |
| Winnipeg Formation | 3,095 | Ordovician |
| Deadwood Formation | 3,145 | Ordovician/Cambrian |
| Precambrian | 3,174 | 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
1964-07-29
Measured depth
3,196 ft
True vertical depth
3,196 ft
Location
43.705913, -100.744553
43.70591, -100.74455 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Mellette County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.