COOLEY #1-31

API 3508721930 · McClain County, Oklahoma

ACOIL

API

3508721930

Operator

CHARTER OAK PRODUCTION CO LLC

County

McClain

Location

Sec 31 07N 02W (IM)

Completion

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

Completion 0

STRAIGHT HOLEACOIL

Spudded

2012-08-10

Drilling finished

2012-08-18

Completed

2012-12-13

First production

2012-09-25

Total depth

9,068 ft

Operator

CHARTER OAK PRODUCTION CO LLC

Intervals

Formation	Produced	Perforated (ft)	Treatment
PENN BASAL UNCONF SAND	OIL	7,898–7,901	Acid, Frac
WOODFORD	OIL	8,044–8,069	Acid, Frac
HUNTON	OIL	8,079–8,124	Acid, Frac
VIOLA	OIL	8,524–8,604	Acid, Frac

Production tests

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2012-09-10	0	0	0	—	930	—
2012-09-17	0	0	0	—	1,504	—
2012-12-13	38	105	55	42	225	—

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 1/2	17 & 20	N-80	9,055	275
CONDUCTOR	16	—	—	47	7
SURFACE	8 5/8	J-55	24	250	190

Drilling permit

Oklahoma files 1 application 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 2012-08-02

WRADRStraight hole

Permit API

35087219300000

Operator

CHARTER OAK PRODUCTION CO LLC

Well type

OIL

Approved

2012-08-02

Expires

2013-02-02

Proposed depth

9,250 ft

Surface casing

250 ft

Ground elevation

1,109 ft

Target formations

Formation	Expected top (ft)
HOXBAR	4,950
DEESE	6,960
PENNSYLVANIA UNCONF BAS SD	7,960
WOODFORD	8,000
HUNTON	8,130
SYLVAN	8,345
VIOLA	8,470
SIMPSON DENSE	8,860
SIMPSON DOLO	8,930
BROMIDE	8,950

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

35.031466, -97.458606

35.03147, -97.45861 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in McClain County, Oklahoma

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