JOHNSTON TRUST #1-7
API 3505122815 · Grady County, Oklahoma
Drilling permits
Oklahoma files 5 applications to drill this well, naming 27 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 1999-02-22
WRADRTarget formations
| Formation | Expected top (ft) |
|---|---|
| TONKAWA | 8,325 |
| MEDRANO | 8,720 |
| COTTAGE GROVE | 9,285 |
| DEESE | 10,600 |
| MORROW-SPRINGER | 12,340 |
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 2002-06-19
WRADRTarget formations
| Formation | Expected top (ft) |
|---|---|
| TONKAWA | 8,310 |
| MEDRANO | 9,110 |
| COTTAGE GROVE | 9,660 |
| DEESE | 11,815 |
| MORROW-SPRINGER | 12,305 |
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 2002-06-19
WRAAMTarget formations
| Formation | Expected top (ft) |
|---|---|
| TONKAWA | 8,310 |
| MEDRANO | 9,110 |
| COTTAGE GROVE | 9,660 |
| DEESE | 11,815 |
| MORROW-SPRINGER | 12,305 |
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 2002-11-22
WRAAMTarget formations
| Formation | Expected top (ft) |
|---|---|
| TONKAWA | 8,310 |
| MEDRANO | 9,110 |
| COTTAGE GROVE | 9,660 |
| CLEVELAND | 10,530 |
| DEESE | 11,815 |
| MORROW-SPRINGER | 12,305 |
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 2003-01-31
WRAAMTarget formations
| Formation | Expected top (ft) |
|---|---|
| TONKAWA | 8,310 |
| MEDRANO | 9,110 |
| COTTAGE GROVE | 9,660 |
| CLEVELAND | 10,530 |
| DEESE | 11,815 |
| MORROW-SPRINGER | 12,305 |
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
35.265615, -98.092927
Every well in Grady County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.