42-211-32476

PRODUCING

ZYBACH 66

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

Permits

2

Max Depth

14,800 ft

First Permit

2000-11-08

Latest Activity

2000-11-08

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2006-11-06

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Production operator mismatch

Scheduling: UNBRIDLED RESOURCES LLC ≠ Production: 4P ENERGY TEXAS, LLC (reported 2018-07)

!

EWA / Permit operator mismatch

Scheduling: UNBRIDLED RESOURCES LLC ≠ Permit: DREYFUS, LOUIS NATURAL GAS CORP

Resolved via: schedulingUNBRIDLED RESOURCES LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2001-05

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 (7) Elevation 2,698 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
B/HEBNER-T/DOUGLAS8,130 ft-5,432 ft
B/HEEBNER-T/DOUGLAS8,130 ft-5,432 ft
T/TONKAWA8,920 ft-6,222 ft
T/GRANITE WASH10,460 ft-7,762 ft
T/BUFFALO WALLOW GRANITE WASH10,985 ft-8,287 ft
T/BUFFAO WALLOW GRANITE WASH10,985 ft-8,287 ft
T/MORROW14,043 ft-11,345 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
11,032–11,206 ftPerforated
11,032–11,390 ftPerforated

Casing (7)

SizeSet DepthCement
13.375"541 ft480 sx
13.375"542 ft480 sx
9.625"5,260 ft515 sx
5.5"13,985 ft530 sx
5.5"14,010 ft530 sx
9.625"335 sx
9.625"515 sx

Permit History (2)

Applications (2)

#501768 A DREYFUS, LOUIS NATURAL GAS CORP
received 2001-09-11
#501768 A DREYFUS, LOUIS NATURAL GAS CORP
received 2000-11-08

Records & Logs

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

W-2/G-1 2007-01-09
W-2/G-1 2004-06-25
W-2/G-1 2001-06-29 log on file
W-2/G-1 2001-09-26

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
1
Max Depth
14,800 ft
Drill Type
Vertical
County
HEMPHILL
District
10
Completed
2006-11-06

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