Amerada 1 Government Cheyenne River
API 4013705006 · Ziebach County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole
API
4013705006
Operator
Amerada Petroleum Co.
County
Ziebach
Field
Wildcat
Location
SESW Sec 20 Twp 014N Rng 18E
Permit
303
Formation tops
South Dakota records 8 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Pierre Shale | 420 | Cretaceous |
| Niobrara Formation | 1,838 | Cretaceous |
| Greenhorn Limestone | 2,440 | Cretaceous |
| Newcastle Sandstone | 2,988 | Cretaceous |
| Skull Creek Shale | 3,004 | Cretaceous |
| Fall River Sandstone | 3,221 | Cretaceous |
| Sundance Formation | 3,256 | Triassic |
| Piper Formation | 3,608 | Triassic |
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
1960-03-12
Measured depth
3,610 ft
True vertical depth
3,610 ft
Location
45.156144, -101.948813
45.15614, -101.94881 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Ziebach County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.