FLENNIKEN #1-11H
API 3509520532 · Marshall County, Oklahoma
ACOIL
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 2008-10-23
WRADRHorizontal holePermit API
35095205320000
Operator
CHESAPEAKE OPERATING LLC
Well type
OIL
Approved
2008-10-23
Expires
2009-04-23
Proposed depth
10,400 ft
Surface casing
1,100 ft
Ground elevation
741 ft
Target formations
| Formation | Expected top (ft) |
|---|---|
| CANEY | 4,860 |
| SYCAMORE | 5,160 |
| WOODFORD | 5,360 |
| HUNTON | 5,560 |
| SYLVAN | 5,840 |
| VIOLA | 6,000 |
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
34.142945, -96.637199
34.14294, -96.63720 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom
Every well in Marshall County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.