HAMMACK #8-7
API 3503921855 · Custer County, Oklahoma
ACGAS
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 2000-04-07
WRADRPermit API
35039218550000
Operator
MARATHON OIL COMPANY LLC
Well type
GAS
Approved
2000-04-07
Expires
2000-10-07
Proposed depth
11,400 ft
Surface casing
500 ft
Ground elevation
1,904 ft
Target formations
| Formation | Expected top (ft) |
|---|---|
| DOUGLAS (TONKAWA UP) | 8,390 |
| TONKAWA | 8,460 |
| COTTAGE GROVE | 9,500 |
| CLEVELAND | 10,200 |
| OSWEGO | 11,050 |
| SKINNER | 11,350 |
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
35.791061, -99.372961
35.79106, -99.37296 · 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.