42-251-30818

Final Completion Horizontal

BONTKE TRUST UNIT

JOHNSON County · District 9 · DEVON ENERGY PRODUCTION CO L.P. · NEWARK EAST (BARNETT SHALE)

Permits

1

Max Depth

8,900 ft

First Permit

2006-02-28

Latest Activity

2006-02-28

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

!

EWA / Production operator mismatch

Scheduling: DEVON ENERGY PRODUCTION CO L.P. ≠ Production: FORMENTERA OPERATIONS LLC (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: DEVON ENERGY PRODUCTION CO L.P. ≠ Permit: CHIEF OIL & GAS LLC **

Resolved via: productionFORMENTERA OPERATIONS LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2006-10

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (5) Elevation 825 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
BIG SALINE 7,124 ft-6,299 ft
LOWER MARBLE FALLS (Marble Falls)7,600 ft-6,775 ft
MARBLE FALLS 7,612 ft-6,787 ft
UPPER BARNETT SHALE (Barnett)7,813 ft-6,988 ft
BARNETT SHALE (Barnett)7,919 ft-7,094 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (2)

IntervalType
8,164–8,929 ftPerforated
9,180–9,945 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"1,717 ft620 sx
5.5"10,022 ft675 sx

Permit History (1)

Applications (1)

#614953 A CHIEF OIL & GAS LLC **
received 2006-02-28

Records & Logs

4 completion filings on record · 1 with log images at RRC.

W-2/G-1 2009-04-09
W-2/G-1 2008-06-13
W-2/G-1 2007-03-22 log on file
W-2/G-1 2008-03-13

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in JOHNSON County.

Well Details

Well Number
1H
Max Depth
8,900 ft
Drill Type
Horizontal
County
JOHNSON
District
9

Operator

Location
OKLAHOMA CI, TY
P-5 Status
Active (filed 2025-12-18)
Cum Oil (all leases)
365,943,944 bbl
Cum Gas (all leases)
9,274,880,220 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
9,261