MARY ANN #1-27
API 3505122691 · Grady County, Oklahoma
PANT
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 1997-06-27
WRADRPermit API
35051226910000
Operator
CHESAPEAKE OPERATING LLC
Well type
NT
Approved
1997-06-27
Expires
1998-01-10
Proposed depth
16,800 ft
Surface casing
450 ft
Ground elevation
1,181 ft
Target formations
| Formation | Expected top (ft) |
|---|---|
| SYCAMORE | 15,100 |
| WOODFORD | 15,400 |
| HUNTON | 15,950 |
| VIOLA | 16,200 |
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
34.707419, -97.714600
34.70742, -97.71460 · 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.