T-REX 2-18-25 #1H

API 3504523547 · Ellis County, Oklahoma

ACOIL

API

3504523547

Operator

UNBRIDLED RESOURCES LLC

County

Ellis

Location

Sec 35 19N 25W (IM)

Completions

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

Completion 0

HORIZONTAL HOLEACOIL

Spudded

2015-01-07

Drilling finished

2015-01-31

Completed

2015-01-31

Total depth

14,195 ft

Operator

UNBRIDLED RESOURCES LLC

Casing

String	Size (in)	Weight (lb/ft)	Grade	Set (ft)	Cement (sacks)
PRODUCTION	7	26	P-110	8,498	320
LINER	4 1/2	11.6	HCP-110	5,930	520
SURFACE	9 5/8	36	J-55	1,515	670

Completion 0

HORIZONTAL HOLEACOIL

Spudded

2015-01-07

Drilling finished

2015-01-30

Completed

2015-09-24

First production

2015-10-19

Total depth

14,195 ft

Operator

UNBRIDLED RESOURCES LLC

Interval

Formation	Produced	Perforated (ft)	Treatment
CLEVELAND	OIL	9,435–14,059	Acid, Frac

Production test

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2015-11-01	519	704	927	46	400	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	7	26	P-110	8,498	320
LINER	4 1/2	11.6	P-110	5,930	520
CONDUCTOR	20	106.5	J55	81	120
SURFACE	9 5/8	36	J55	1,515	670

Drilling permit

Oklahoma files 1 application to drill this well, naming 6 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 2014-12-16

WRADRHorizontal hole

Permit API

35045235470000

Operator

CHESAPEAKE OPERATING LLC

Well type

OIL

Approved

2014-12-16

Expires

2015-06-16

Proposed depth

14,450 ft

Proposed measured depth

14,195 ft

Proposed true vertical depth

9,169 ft

Proposed lateral

5,502 ft

Surface casing

1,500 ft

Ground elevation

2,301 ft

Target formations

Formation	Expected top (ft)
DOUGLAS	7,595
COTTAGE GROVE	8,150
HOGSHOOTER	8,413
CHECKERBOARD	8,580
CLEVELAND	8,723
MARMATON	9,060

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

36.072072, -99.840645

36.07207, -99.84064 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Ellis County, Oklahoma

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