CHISHOLM TRAIL #1
API 3505122716 · Grady County, Oklahoma
Drilling permits
Oklahoma files 2 applications to drill this well, naming 8 target formations. A permit records what an operator asked to do, not what it did. A target formation is where the operator aimed, and the hole may have missed it, stopped short of it or never been drilled.
Filed 1997-10-01
WRADRTarget formations
| Formation | Expected top (ft) |
|---|---|
| TONKAWA | 7,000 |
| LAYTON | 8,300 |
| COTTAGE GROVE | 8,500 |
| PRUE | 9,100 |
| SKINNER | 9,300 |
| OSBORN | 9,500 |
| MISSISSIPPIAN | 10,000 |
An expected top is the depth the operator predicted before drilling, on the application it filed with Oklahoma. It is not a measurement of where the formation was found.
Filed 2001-03-09
WRARCTarget formation
| Formation | Expected top (ft) |
|---|---|
| PRUE | 9,100 |
An expected top is the depth the operator predicted before drilling, on the application it filed with Oklahoma. It is not a measurement of where the formation was found.
Location
35.252106, -97.784145
Every well in Grady County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.