S.D. Oil Development 2 Dvorak
API 4011505001 · Spink County, South Dakota · Wildcat field
Converted-Fresh Water SupplyDry Hole
API
4011505001
Operator
South Dakota Oil Development Co., Inc.
County
Spink
Field
Wildcat
Location
Permit
371
Formation tops
South Dakota records 6 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Greenhorn Limestone | 440 | Cretaceous |
| Graneros | 482 | Cretaceous |
| Dakota Mud | 740 | Cretaceous |
| Fall River Sandstone | 840 | Cretaceous |
| Lakota Formation | 1,040 | Cretaceous |
| Precambrian | 1,105 | 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
Converted-Fresh Water SupplyDry HoleSpudded
1964-10-23
Measured depth
1,120 ft
True vertical depth
1,120 ft
Location
44.912268, -98.413645
44.91227, -98.41365 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Spink County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.