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SHREWDER #1-18

API 3504521648 · Ellis County, Oklahoma

ACOIL
API
3504521648
Operator
CHACO ENERGY COMPANY
County
Ellis
Location
Sec 18 18N 23W ()

Drilling permits

Oklahoma files 2 applications to drill this well, naming 11 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 1990-06-20

WRADR
Permit API
35045216480003
Operator
CHACO ENERGY COMPANY
Well type
GAS
Approved
1990-06-20
Expires
1991-01-03
Proposed depth
18,000 ft
Surface casing
4,000 ft
Ground elevation
2,500 ft

Target formations

FormationExpected top (ft)
TONKAWA8,025
COTTAGE GROVE8,500
CLEVELAND9,100
MORROW11,085
CHESTER12,400
MERAMEC13,875
HUNTON15,230
VIOLA15,900
SIMPSON16,500
ARBUCKLE17,400

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 2005-03-04

WRARC
Permit API
35045216480005
Operator
CHACO ENERGY COMPANY
Well type
OIL
Approved
2005-03-04
Expires
2005-09-04
Proposed depth
15,466 ft
Surface casing
4,040 ft
Ground elevation
2,500 ft

Target formation

FormationExpected top (ft)
ATOKA10,800

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

36.030476, -99.700720

36.03048, -99.70072 · 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.