MADISON #1-21
API 3505122648 · Grady 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 1997-01-13
WRADRPermit API
35051226480000
Operator
CHESAPEAKE OPERATING LLC
Well type
GAS
Approved
1997-01-13
Expires
1997-07-27
Proposed depth
15,400 ft
Surface casing
550 ft
Ground elevation
350 ft
Target formations
| Formation | Expected top (ft) |
|---|---|
| SYCAMORE | 13,500 |
| WOODFORD | 13,700 |
| HUNTON | 14,000 |
| VIOLA | 14,650 |
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
34.713914, -97.734938
34.71391, -97.73494 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom
Every well in Grady County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.