COBB RANCH #21 #1

API 3513923302 · Texas County, Oklahoma

ACGAS

API

3513923302

Operator

EIGER OPERATING COMPANY, LLC

County

Texas

Location

Sec 21 03N 13E (CM)

Completion

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

Completion 2

STRAIGHT HOLEACGAS

Spudded

2001-06-25

Drilling finished

2001-07-10

Completed

2001-08-05

Recompleted

2013-01-09

First production

2001-08-30

Total depth

6,900 ft

Operator

EIGER OPERATING COMPANY, LLC

Intervals

Formation	Produced	Perforated (ft)	Treatment
CHEROKEE	GAS	5,420–5,424	Acid, Frac
MORROW	OIL	5,936–6,356	Acid, Frac

Production tests

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2001-08-02	19	0	0	30	785	—
2001-09-02	7	4,200	19	50	1,310	64/64
2013-01-09	0	60	15	—	1,140	64/64

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

String	Size (in)	Weight (lb/ft)	Grade	Set (ft)	Cement (sacks)
PRODUCTION	4 1/2	10.5	J-55	6,410	265
SURFACE	8 5/8	24	J-55	1,705	540

Drilling permits

Oklahoma files 4 applications to drill this well, naming 19 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 2001-04-06

WRADR

Permit API

35139233020000

Operator

EOG RESOURCES INC

Well type

GAS

Approved

2001-04-06

Expires

2001-10-06

Proposed depth

6,900 ft

Surface casing

1,700 ft

Ground elevation

3,187 ft

Target formations

Formation	Expected top (ft)
COUNCIL GROVE	2,986
WABAUNSEE	4,200
SHAWNEE	4,216
DOUGLAS	4,350
LANSING	4,450
KANSAS CITY	4,700
MARMATON	5,120
CHEROKEE	5,420
MORROW	5,950
MISSISSIPPIAN	6,545

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 2012-09-24

DELRCStraight hole

Permit API

35139233020000

Operator

MERIT ENERGY COMPANY

Well type

GAS

Approved

2012-09-24

Expires

2013-03-24

Proposed depth

6,900 ft

Surface casing

1,705 ft

Ground elevation

3,187 ft

Target formations

Formation	Expected top (ft)
MARMATON	5,116
CHEROKEE	5,418
MORROW	5,936
CHESTER	6,369

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 2012-09-24

WRARCStraight hole

Permit API

35139233020002

Operator

CAERUS KANSAS LLC

Well type

GAS

Approved

2012-09-24

Expires

2013-03-24

Proposed depth

6,900 ft

Surface casing

1,705 ft

Ground elevation

3,187 ft

Target formation

Formation	Expected top (ft)
CHEROKEE	5,418

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 2017-07-12

WRARCStraight hole

Permit API

35139233020003

Operator

MERIT ENERGY COMPANY

Well type

GAS

Approved

2017-07-12

Expires

2018-01-12

Proposed depth

6,900 ft

Surface casing

1,705 ft

Ground elevation

3,187 ft

Target formations

Formation	Expected top (ft)
MARMATON	5,116
CHEROKEE	5,418
MORROW	5,936
CHESTER	6,369

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

36.706444, -101.671833

36.70644, -101.67183 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Texas County, Oklahoma

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