42-211-33843

TEMP ABANDONED

ZYBACH 66

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

Permits

2

Max Depth

14,400 ft

First Permit

2007-02-26

Latest Activity

2007-02-26

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2007-06-14

Shut-In

—

Plugged

—

P-5 Org Status: Active

!

EWA / Production operator mismatch

Scheduling: UNBRIDLED RESOURCES LLC ≠ Production: ENERVEST OPERATING, L.L.C. (reported 2015-11)

!

EWA / Permit operator mismatch

Scheduling: UNBRIDLED RESOURCES LLC ≠ Permit: DOMINION OKLAHOMA TEXAS E&P, INC

Resolved via: scheduling → UNBRIDLED RESOURCES LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2007-06

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 (6) Elevation 2,710 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
T/CLEVELAND MKR.10,240 ft-7,530 ft
T/CARR GRANITE WASH10,930 ft-8,220 ft
T/CALDWELL GRANITE WASH10,994 ft-8,284 ft
T/BRITT GRANITE WASH11,115 ft-8,405 ft
T/GRANITE WASH D MKR.12,032 ft-9,322 ft
T/ATOKA WASH12,571 ft-9,861 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)

IntervalType
11,040–13,542 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"3,290 ft1,525 sx
5.5"13,750 ft570 sx

Permit History (2)

Applications (2)

#633694 A DOMINION OKLAHOMA TEXAS E&P, INC
received 2007-03-12
#633694 A DOMINION OKLAHOMA TEXAS E&P, INC
received 2007-02-16

Records & Logs

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

W-2/G-1 2007-08-06 log on file
W-2/G-1 2007-10-25

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 HEMPHILL County.

Well Details

Well Number
38
Max Depth
14,400 ft
Drill Type
Vertical
County
HEMPHILL
District
10
Completed
2007-06-14

Operator

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