42-483-32492

Final Completion

ZYBACH 12

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

Permits

Max Depth

14,865 ft

First Permit

2007-10-31

Latest Activity

2012-08-27

Lifespan

5 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2016-08-07

Shut-In

—

Plugged

2022-03-16

EWA / Production operator mismatch

Scheduling: UNBRIDLED RESOURCES LLC ≠ Production: ENERVEST OPERATING, L.L.C. (reported 2016-09)

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

2008-07

Last Production

2023-12

Operator History

Chain of Custody

LINN OPERATING, INC. 2008-2014→ ENERVEST OPERATING, L.L.C. 2015-2016

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 (18) Elevation 2,677 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
T/BROWN DOLOMITE	4,602 ft	-1,925 ft
B/HEEBNER - T/DOUGLAS	8,401 ft	-5,724 ft
B/HEEBNER-T/DOUGLAS	8,401 ft	-5,724 ft
BRITT GRANITE WASH	11,705 ft	-9,028 ft
BRITT GRANITE WASH	11,765 ft	-9,088 ft
GRANITE WASH "A" (Granite Wash)	11,825 ft	-9,148 ft
GRANITE WASH A (Granite Wash)	11,825 ft	-9,148 ft
GRANITE WASH "B" (Granite Wash)	12,042 ft	-9,365 ft
GRANITE WASH B (Granite Wash)	12,042 ft	-9,365 ft
GRANITE WASH "C" (Granite Wash)	12,238 ft	-9,561 ft
GRANITE WASH C (Granite Wash)	12,238 ft	-9,561 ft
T/GRAINTE WASH "D" SHALE	12,541 ft	-9,864 ft
T/GRANITE WASH D SHALE	12,541 ft	-9,864 ft
GRANITE WASH "E" (Granite Wash)	12,621 ft	-9,944 ft
GRANITE WASH E (Granite Wash)	12,621 ft	-9,944 ft
GRANITE WASH "F" (Granite Wash)	12,802 ft	-10,125 ft
GRANITE WASH F (Granite Wash)	12,802 ft	-10,125 ft
ATOKA WASH (Atoka)	13,170 ft	-10,493 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
11,722–14,001 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	3,373 ft	3,750 sx
5.5"	14,211 ft	465 sx

Permit History (2)

#745504 Field Transfer Final Completion

ZYBACH 12 · 14,210 ft

2012-08-27

Spud 2008-06-10

#648460 Drill Final Completion

ZYBACH 12 · 14,865 ft

2007-10-31

Spud 2008-06-10

Applications (2)

#745504 A LINN OPERATING, INC.

received 2012-07-27

#648460 A LINN OPERATING, INC.

received 2007-10-25

Records & Logs

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

W-2/G-1 2022-03-10

W-2/G-1 2012-09-27

W-2/G-1 2008-08-29 log on file

W-2/G-1 2008-10-27

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: 2
Max Depth: 14,865 ft
Drill Type: Vertical
County: WHEELER
District: 10
Operator: UNBRIDLED RESOURCES LLC
Completed: 2016-08-07

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