WILLA #21 2H

API 3504523728 · Ellis County, Oklahoma

ACOIL
API
3504523728
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
2018-07-05
Drilling finished
2019-01-02
Completed
2019-01-29
First production
2019-01-29
Total depth
14,550 ft
Operator
UNBRIDLED RESOURCES LLC

Interval

FormationProducedPerforated (ft)Treatment
MARMATONOIL9,568–14,507Acid, Frac

Production test

TestedOil (bbl/d)Gas (MCF/d)Water (bbl/d)Gravity (°API)Shut-in (psi)Choke
2019-02-042612641,3654465064

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)
PRODUCTION729P-1108,635435
LINER4 1/211.6P-1106,127420
SURFACE9 5/836J-551,047555

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 2018-02-02

WRADRHorizontal hole
Permit API
35045237280000
Operator
EOG RESOURCES INC
Well type
OIL
Approved
2018-02-02
Expires
2018-08-02
Proposed depth
15,000 ft
Proposed measured depth
14,550 ft
Proposed true vertical depth
9,397 ft
Proposed lateral
4,937 ft
Surface casing
1,500 ft
Ground elevation
2,369 ft

Target formation

FormationExpected top (ft)
MARMATON9,250

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

36.028771, -99.760167

36.02877, -99.76017 · 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.