SHEFFIELD #1-28
API 3513324618 · Seminole County, Oklahoma
ACOIL
Drilling permit
Oklahoma files 1 application to drill this well, naming 5 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 2006-10-26
WRADRPermit API
35133246180000
Operator
LANCE RUFFEL OIL & GAS LLC
Well type
OIL
Approved
2006-10-26
Expires
2007-04-26
Proposed depth
4,200 ft
Surface casing
830 ft
Ground elevation
809 ft
Target formations
| Formation | Expected top (ft) |
|---|---|
| HARTSHORNE | 2,900 |
| GILCREASE | 2,950 |
| CROMWELL | 3,100 |
| MISENER | 3,840 |
| HUNTON | 3,900 |
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
35.142149, -96.469892
35.14215, -96.46989 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom
Every well in Seminole County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.