Cahill 1 Nielson
API 4012305004 · Tripp County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole-Oil and Gas show
API
4012305004
Operator
W. Cahill
County
Tripp
Field
Wildcat
Location
SWSW Sec 07 Twp 099N Rng 76W
Permit
317
Formation tops
South Dakota records 5 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Niobrara Formation | 710 | Cretaceous |
| Carlile Shale | 870 | Cretaceous |
| Greenhorn Limestone | 1,105 | Cretaceous |
| Graneros | 1,155 | Cretaceous |
| Newcastle Sandstone | 1,280 | Cretaceous |
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 and Gas showSpudded
1962-08-21
Measured depth
1,411 ft
True vertical depth
1,411 ft
Location
43.402702, -99.887210
43.40270, -99.88721 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Tripp County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.