HERIFORD #3-7
API 3503921665 · Custer County, Oklahoma
PAGAS
Drilling permit
Oklahoma files 1 application to drill this well, naming 6 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 1996-07-09
WRADRPermit API
35039216650000
Operator
MARATHON OIL COMPANY LLC
Well type
GAS
Approved
1996-07-09
Expires
1997-01-23
Proposed depth
11,800 ft
Surface casing
4,500 ft
Ground elevation
1,887 ft
Target formations
| Formation | Expected top (ft) |
|---|---|
| DOUGLAS (TONKAWA UP) | 7,600 |
| COTTAGE GROVE | 9,050 |
| CLEVELAND | 9,980 |
| OSWEGO | 10,480 |
| SKINNER | 11,270 |
| RED FORK | 11,560 |
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
35.793835, -99.375470
35.79384, -99.37547 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom
Every well in Custer County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.