COCHRAN #1H-20

API 3500520456 · Atoka County, Oklahoma

ACGAS

API

3500520456

Operator

GRS SERVICES LLC

County

Atoka

Location

Sec 20 02S 12E (IM)

Completions

Oklahoma files 2 completion reports for this well. 2 carry a production test the operator filed.

Completion 0

HORIZONTAL HOLEACGAS

Spudded

2014-10-12

Drilling finished

2014-12-28

Completed

2015-04-28

Total depth

11,456 ft

Operator

GRS SERVICES LLC

Interval

Formation	Produced	Perforated (ft)	Treatment
BIG FORK	DRY	8,328–11,266	Acid, Frac

Production test

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2015-06-29	0	1,866	900	—	1,500	48

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	5.5	23	P-110	11,456	1,460
CONDUCTOR	20	90	—	80	0
SURFACE	13.375	54.5	J-55	1,500	1,190

Completion 1

HORIZONTAL HOLEACGAS

Spudded

2014-10-12

Drilling finished

2014-12-28

Completed

2015-04-28

Recompleted

2019-11-19

First production

2019-11-19

Total depth

11,456 ft

Operator

GRS SERVICES LLC

Interval

Formation	Produced	Perforated (ft)	Treatment
BIG FORK	GAS	8,328–11,266	Acid, Frac

Production tests

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2015-06-29	0	1,866	900	—	1,500	48
2019-11-27	0	874	486	—	2,500	18/64

Casing

String	Size (in)	Weight (lb/ft)	Grade	Set (ft)	Cement (sacks)
PRODUCTION	5.5	23	P-110	11,456	1,460
CONDUCTOR	20	90	—	80	0
SURFACE	13.375	54.5	J-55	1,500	1,190

Drilling permits

Oklahoma files 2 applications to drill this well, naming 10 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 2014-09-19

WRADRHorizontal hole

Permit API

35005204560000

Operator

ERGON ENERGY ASSOCIATES LLC

Well type

GAS

Approved

2014-09-19

Expires

2015-03-19

Proposed depth

12,750 ft

Proposed measured depth

11,456 ft

Proposed true vertical depth

9,194 ft

Proposed lateral

1,480 ft

Surface casing

1,500 ft

Ground elevation

540 ft

Target formations

Formation	Expected top (ft)
ARKANSAS NOVACULITE	7,531
MISSOURI MOUNTAIN	7,823
POLK CREEK	7,993
BIG FORK	8,183
WOMBLE	8,688

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.

Filed 2019-09-20

WRARCHorizontal hole

Permit API

35005204560001

Operator

G & S ENERGY INC

Well type

GAS

Approved

2019-09-20

Expires

2021-03-20

Proposed depth

11,456 ft

Proposed measured depth

11,456 ft

Proposed true vertical depth

9,194 ft

Proposed lateral

1,480 ft

Surface casing

1,500 ft

Ground elevation

540 ft

Target formations

Formation	Expected top (ft)
ARKANSAS NOVACULITE	7,414
MISSOURI MOUNTAIN	7,794
POLK CREEK	7,960
BIG FORK	8,160
WOMBLE	8,610

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

34.369950, -96.063700

34.36995, -96.06370 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Atoka County, Oklahoma

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