APPEL 21-20-26 #1H

API 3504523072 · Ellis County, Oklahoma

ACOIL
API
3504523072
Operator
UNBRIDLED RESOURCES LLC
County
Ellis

Completion

Oklahoma files 1 completion report for this well. One carries a production test the operator filed.

Completion 0

HORIZONTAL HOLEACOIL
Spudded
2011-06-17
Drilling finished
2011-07-18
Completed
2011-08-11
First production
2011-09-20
Total depth
12,815 ft
Operator
UNBRIDLED RESOURCES LLC

Interval

FormationProducedPerforated (ft)Treatment
CLEVELANDOIL8,600–12,704Acid, Frac

Production test

TestedOil (bbl/d)Gas (MCF/d)Water (bbl/d)Gravity (°API)Shut-in (psi)Choke
2011-10-21211516105462,20013/64

A production test is one measurement the operator made on one day and filed with Oklahoma. It is not a monthly average and it does not describe how the well produced afterwards. The choke size is shown exactly as filed: Oklahoma records it in inches on some reports and in sixty-fourths of an inch on others, and names the unit on neither. A dash is a measurement Oklahoma did not file, or one it filed outside any physically possible range.

Casing

StringSize (in)Weight (lb/ft)GradeSet (ft)Cement (sacks)
INTERMEDIATE726P-1108,735400
LINER4 1/213.5P-1105,374490
SURFACE9 5/836J-551,500700

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 2011-06-01

WRADRHorizontal hole
Permit API
35045230720000
Operator
CHESAPEAKE OPERATING LLC
Well type
OIL
Approved
2011-06-01
Expires
2011-12-01
Proposed depth
13,500 ft
Proposed measured depth
12,815 ft
Proposed true vertical depth
8,189 ft
Proposed lateral
4,449 ft
Surface casing
1,500 ft
Ground elevation
2,438 ft

Target formations

FormationExpected top (ft)
DOUGLAS7,123
TONKAWA7,683
COTTAGE GROVE8,118
CLEVELAND8,153

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

36.188407, -99.986658

36.18841, -99.98666 · Surface location as filed with Oklahoma

Every well in Ellis County, Oklahoma

Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.