SHREWDER 8-16-22 #1H

API 3504523202 · Ellis County, Oklahoma

ACOIL

API

3504523202

Operator

UNBRIDLED RESOURCES LLC

County

Ellis

Location

Sec 5 16N 22W (IM)

Completion

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

Completion 0

HORIZONTAL HOLEACOIL

Spudded

2012-06-20

Drilling finished

2012-07-15

Completed

2012-08-19

First production

2012-09-17

Total depth

13,167 ft

Operator

UNBRIDLED RESOURCES LLC

Interval

Formation	Produced	Perforated (ft)	Treatment
TONKAWA	OIL	8,454–13,023	Acid, Frac

Production test

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2012-10-10	325	468	252	—	0	—

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

String	Size (in)	Weight (lb/ft)	Grade	Set (ft)	Cement (sacks)
PRODUCTION	7	26	P-110EC	7,591	321
LINER	4 1/2	13.5	P-110EC	5,815	508
INTERMEDIATE	9 5/8	36	J-55	1,520	559
SURFACE	13 3/8	48	J-55	582	600

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 2012-05-31

WRADRHorizontal hole

Permit API

35045232020000

Operator

CHESAPEAKE OPERATING LLC

Well type

OIL

Approved

2012-05-31

Expires

2012-11-30

Proposed depth

14,650 ft

Proposed measured depth

13,167 ft

Proposed true vertical depth

8,314 ft

Proposed lateral

4,967 ft

Surface casing

720 ft

Ground elevation

2,009 ft

Target formations

Formation	Expected top (ft)
TONKAWA	8,179
COTTAGE GROVE	8,821
CLEVELAND	9,554
MARMATON	9,911

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

35.883740, -99.565727

35.88374, -99.56573 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Ellis County, Oklahoma

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