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MACK #1-21

API 3505122685 · Grady County, Oklahoma

ACGAS
API
3505122685
Operator
GULFPORT MIDCON LLC
County
Grady
Location
Sec 21 03N 05W (IM)

Drilling permit

Oklahoma files 1 application to drill this well, naming 4 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 1997-06-12

WRADR
Permit API
35051226850000
Operator
CHESAPEAKE OPERATING LLC
Well type
GAS
Approved
1997-06-12
Expires
1997-12-26
Proposed depth
16,200 ft
Surface casing
520 ft
Ground elevation
1,118 ft

Target formations

FormationExpected top (ft)
SYCAMORE14,200
WOODFORD14,500
HUNTON14,900
VIOLA15,600

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

34.713750, -97.722133

34.71375, -97.72213 · Surface location as filed with Oklahoma

Every well in Grady County, Oklahoma

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