GRAYLING 21X16-18-26 #1HA

API 3504523794 · Ellis County, Oklahoma

ACOIL
API
3504523794
Operator
UNBRIDLED RESOURCES LLC
County
Ellis

Completion

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

Completion 0

HORIZONTAL HOLEACOIL
Spudded
2019-04-23
Drilling finished
2019-05-20
Completed
2019-07-11
First production
2019-07-18
Total depth
20,134 ft
Operator
UNBRIDLED RESOURCES LLC

Interval

FormationProducedPerforated (ft)Treatment
CLEVELANDOIL9,763–18,791Acid, Frac

Production test

TestedOil (bbl/d)Gas (MCF/d)Water (bbl/d)Gravity (°API)Shut-in (psi)Choke
2019-08-284771,6441,0984789039/64

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

StringSize (in)Weight (lb/ft)GradeSet (ft)Cement (sacks)
PRODUCTION4 1/213.5P-11018,122920
INTERMEDIATE729P-1108,603510
SURFACE9 5/836J-55630310

Drilling permit

Oklahoma files 1 application to drill this well, naming 1 target formation. 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 2019-04-18

WRADRHHMU
Permit API
35045237940000
Operator
UNBRIDLED RESOURCES LLC
Well type
OIL
Approved
2019-04-18
Expires
2020-10-18
Proposed depth
19,497 ft
Proposed measured depth
20,134 ft
Proposed true vertical depth
9,396 ft
Proposed lateral
10,401 ft
Surface casing
670 ft
Ground elevation
2,434 ft

Target formation

FormationExpected top (ft)
CLEVELAND8,860

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

36.043447, -99.986675

36.04345, -99.98668 · Surface location as filed with Oklahoma

Every well in Ellis County, Oklahoma

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