O'BRIEN #9-2
API 3512922008 · Roger Mills County, Oklahoma
ACGAS
Drilling permit
Oklahoma files 1 application to drill this well, naming 4 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 1996-08-20
WRADRPermit API
35129220080000
Operator
MARATHON OIL COMPANY LLC
Well type
GAS
Approved
1996-08-20
Expires
1997-03-05
Proposed depth
12,900 ft
Surface casing
4,500 ft
Ground elevation
1,971 ft
Target formations
| Formation | Expected top (ft) |
|---|---|
| TONKAWA | 8,500 |
| COTTAGE GROVE | 9,000 |
| CLEVELAND | 10,000 |
| DES MOINES | 11,000 |
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.
Location
35.718877, -99.515420
35.71888, -99.51542 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom
Every well in Roger Mills County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.