ROBERTS RANCH #18-4

API 3512921740 · Roger Mills County, Oklahoma

ACGAS

API

3512921740

Operator

TEOCALLI EXPLORATION LLC

County

Roger Mills

Location

Sec 18 14N 22W (IM)

Completion

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

Completion 2

STRAIGHT HOLEACGAS

Spudded

1993-02-20

Drilling finished

1993-04-01

Completed

1993-04-13

Recompleted

2014-11-03

Total depth

12,900 ft

Operator

TEOCALLI EXPLORATION LLC

Intervals

Formation	Produced	Perforated (ft)	Treatment
TONKAWA	GAS	8,724–8,770	Frac
CLEVELAND	DRY	11,035–11,062	Frac
DES MOINES	DRY	12,319–12,519	Frac

Production test

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2014-12-09	0	260	0	—	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)
INTERMEDIATE	5 1/2	17	P-110 / N-80 / S-95	12,210	450
PRODUCTION	2 7/8	6.5	P-110 / N-80	12,900	75
CONDUCTOR	20	—	—	55	7
SURFACE	9 5/8	43.5 / 47	P-110 / N-80	4,020	775

Drilling permits

Oklahoma files 3 applications 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 1993-02-12

WRADR

Permit API

35129217400000

Operator

CHESAPEAKE OPERATING LLC

Well type

GAS

Approved

1993-02-12

Expires

1993-08-26

Proposed depth

12,900 ft

Surface casing

4,000 ft

Ground elevation

1,917 ft

Target formation

Formation	Expected top (ft)
DES MOINES	12,240

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 1993-02-12

WRAAM

Permit API

35129217400001

Operator

CHESAPEAKE OPERATING LLC

Well type

GAS

Approved

1993-02-12

Expires

1993-08-26

Proposed depth

12,900 ft

Surface casing

4,000 ft

Ground elevation

1,917 ft

Target formation

Formation	Expected top (ft)
DES MOINES	12,240

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 2014-09-03

WRARCStraight hole

Permit API

35129217400002

Operator

CHESAPEAKE OPERATING LLC

Well type

GAS

Approved

2014-09-03

Expires

2015-03-03

Proposed depth

12,900 ft

Surface casing

4,020 ft

Ground elevation

1,917 ft

Target formations

Formation	Expected top (ft)
TONKAWA	8,720
CLEVELAND	11,000

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

35.686749, -99.584367

35.68675, -99.58437 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Roger Mills County, Oklahoma

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