42-483-32282

Final Completion

ZYBACH 12

WHEELER County · District 10 · UNBRIDLED RESOURCES LLC · BUFFALO WALLOW (GRANITE WASH)

Permits

Max Depth

14,753 ft

First Permit

2007-03-02

Latest Activity

2012-11-26

Lifespan

6 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2007-05-07

Shut-In

—

Plugged

2020-12-03

EWA / Production operator mismatch

Scheduling: UNBRIDLED RESOURCES LLC ≠ Production: LINN OPERATING, INC. (reported 2013-08)

EWA / Permit operator mismatch

Scheduling: UNBRIDLED RESOURCES LLC ≠ Permit: LINN OPERATING, INC.

Resolved via: scheduling → UNBRIDLED RESOURCES LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2007-05

Last Production

2024-08

Operator History

Chain of Custody

DOMINION OKLAHOMA TEXAS E&P, INC 2007-2007→ LINN OPERATING, INC. 2007-2013

Lease Production

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

Gas

production & DCA →

Formation Tops (8) Elevation 2,696 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
T/BROWN DOLOMITE	4,610 ft	-1,914 ft
B/HEEBNER - T/DOUGLAS	8,376 ft	-5,680 ft
B/HEEBNER-T/DOUGLAS	8,376 ft	-5,680 ft
CLEVELAND MARKER (Cleveland)	10,584 ft	-7,888 ft
CLEVELAND MKR. (Cleveland)	10,584 ft	-7,888 ft
T/BRITT GRANITE WASH	11,630 ft	-8,934 ft
GRANITE WASH D SHALE (Granite Wash)	12,458 ft	-9,762 ft
ATOKA WASH (Atoka)	13,112 ft	-10,416 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 (1)

Interval	Type
11,654–13,714 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	3,330 ft	1,875 sx
5.5"	13,886 ft	650 sx

Permit History (2)

#745505 Field Transfer Final Completion

ZYBACH 12 · 13,859 ft

2012-11-26

Spud 2007-03-11

#634209 Drill Final Completion

ZYBACH 12 · 14,753 ft

2007-03-02

Spud 2007-03-11

Applications (2)

#745505 A LINN OPERATING, INC.

received 2012-07-27

#634209 A DOMINION OKLAHOMA TEXAS E&P, INC

received 2007-02-26

Records & Logs

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

W-2/G-1 2012-11-27

W-2/G-1 2007-07-19 log on file

W-2/G-1 2007-08-09

Completion packets + logs ↗ Wellbore filings ↗

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 WHEELER County.

Well Details

Well Number: 1
Max Depth: 14,753 ft
Drill Type: Vertical
County: WHEELER
District: 10
Operator: UNBRIDLED RESOURCES LLC
Completed: 2007-05-07

Operator

Name: UNBRIDLED RES, LLC
Location: OKLAHOMA CI, TY
P-5 Status: Active (filed 2025-12-17)
Cum Oil (all leases): 2,156,940 bbl
Cum Gas (all leases): 150,390,040 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 6