SHEPHARD #1-26

API 3503922061 · Custer County, Oklahoma

PAGAS

API

3503922061

Operator

DUNCAN OIL PROPERTIES INC

County

Custer

Location

Sec 26 14N 18W (IM)

Completion

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

Completion 3

STRAIGHT HOLEPAGAS

Spudded

2003-08-26

Drilling finished

2003-11-20

Completed

2004-02-12

Recompleted

2011-09-20

First production

2004-03-25

Total depth

14,950 ft

Operator

DUNCAN OIL PROPERTIES INC

Interval

Formation	Produced	Perforated (ft)	Treatment
CLEVELAND	OIL	10,092–10,102	Frac

Production test

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2011-10-01	10	0	10	44	4,438	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)
INTERMEDIATE	7	29	HCP-110	12,220	700
PRODUCTION	4 1/2	15.1	P-110	14,949	550
CONDUCTOR	13 3/8	48	H-40	539	400
SURFACE	9 5/8	40	K-55	4,487	760

Drilling permits

Oklahoma files 3 applications to drill this well, naming 12 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 2003-08-06

WRADR

Permit API

35039220610000

Operator

DUNCAN OIL PROPERTIES INC

Well type

GAS

Approved

2003-08-06

Expires

2004-02-06

Proposed depth

15,410 ft

Surface casing

470 ft

Ground elevation

1,712 ft

Target formations

Formation	Expected top (ft)
TONKAWA	8,300
COTTAGE GROVE	9,140
OSWEGO	10,220
SKINNER	11,125
RED FORK	11,510
ATOKA	12,250
MORROW	13,010
SPRINGER	14,710
CHESTER	15,400

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 2005-06-22

WRARC

Permit API

35039220610002

Operator

DUNCAN OIL PROPERTIES INC

Well type

GAS

Approved

2005-06-22

Expires

2005-12-22

Proposed depth

14,950 ft

Surface casing

539 ft

Ground elevation

1,712 ft

Target formations

Formation	Expected top (ft)
ATOKA	12,308
MORROW	14,206

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 2011-06-23

WRARCStraight hole

Permit API

35039220610003

Operator

DUNCAN OIL PROPERTIES INC

Well type

Approved

2011-06-23

Expires

2011-12-23

Proposed depth

14,950 ft

Surface casing

539 ft

Ground elevation

1,712 ft

Target formation

Formation	Expected top (ft)
CLEVELAND	10,087

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

35.663927, -99.091160

35.66393, -99.09116 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Custer County, Oklahoma

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