JOHNSTON #1-28H

API 3503922411 · Custer County, Oklahoma

ACOIL
API
3503922411
Operator
H2OK LLC
County
Custer

Completion

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

Completion 0

HORIZONTAL HOLEACOIL
Spudded
2012-10-20
Drilling finished
2012-11-17
Completed
2012-12-10
First production
2013-01-07
Total depth
13,500 ft
Operator
H2OK LLC

Interval

FormationProducedPerforated (ft)Treatment
COTTAGE GROVEOIL9,111–13,340Acid, Frac

Production test

TestedOil (bbl/d)Gas (MCF/d)Water (bbl/d)Gravity (°API)Shut-in (psi)Choke
2013-02-04165415774080064/64

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)
PRODUCTION729P-1108,015270
LINER4.513.5P-1105,803440
SURFACE9.62540J-55 ST & C919460

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 2012-10-09

WRADRHorizontal hole
Permit API
35039224110000
Operator
SANGUINE GAS EXPLORATION LLC
Well type
OIL
Approved
2012-10-09
Expires
2013-04-09
Proposed depth
13,720 ft
Proposed measured depth
13,500 ft
Proposed true vertical depth
8,633 ft
Proposed lateral
4,470 ft
Surface casing
900 ft
Ground elevation
1,793 ft

Target formation

FormationExpected top (ft)
COTTAGE GROVE8,625

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

35.740842, -98.913678

35.74084, -98.91368 · Surface location as filed with Oklahoma

Every well in Custer County, Oklahoma

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