Benedum 1 USA
API 4003320002 · Custer County, South Dakota · Wildcat field
Plugged and AbandonedDry Hole-Oil show
API
4003320002
Operator
P. G. Benedum Jr.
County
Custer
Field
Wildcat
Location
NENE Sec 20 Twp 003S Rng 10E
Permit
632
Formation tops
South Dakota records 7 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Niobrara Formation | 906 | Cretaceous |
| Greenhorn Limestone | 1,637 | Cretaceous |
| Mowry Shale | 1,982 | Cretaceous |
| Dakota Mud | 2,173 | Cretaceous |
| Skull Creek Shale | 2,253 | Cretaceous |
| Fall River Sandstone | 2,472 | Cretaceous |
| Lakota Formation | 2,569 | 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 showSpudded
1971-05-29
Measured depth
2,625 ft
True vertical depth
2,625 ft
Location
43.779551, -102.941903
43.77955, -102.94190 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Custer County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.