TEXAS · WELLS · HEMPHILL COUNTY · ZYBACH 66 LEASE · API 42-211-32560 · DISTRICT 08

Zybach 66 #3

Shut in

Hemphill County · Buffalo Wallow (Granite Wash) field · Temp Abandoned  · Vertical

Zybach 66 #3 (API 42-211-32560) is a well in Hemphill County operated by Unbridled Resources LLC, completed March 14, 2002 and listed as temp abandoned on the RRC schedule, shut in July 1, 2013.

The RRC has issued one drilling permit, issued December 28, 2001, permitted to 11,610 ft.

It was permitted by Dominion Oklahoma Texas E&P, Inc and has since transferred to Unbridled Resources LLC on the wellbore schedule.

Completion filings report 6 formation tops, including T/Brown Dolomite, B/Heebner-T/Douglas, T/Tonkawa, Avant Ls.

Its lease has reported 11.2K barrels of oil and 464K mcf of gas since March 2002, with no volume in the three years through August 2026.

Operator of record

Unbridled Resources LLC

Permitted by Dominion Oklahoma Texas E&P, Inc; the EWA schedule now lists a different operator.

Based in
Oklahoma City, OK
P-5 status
Active (A)
P-5 last filed
Dec 17, 2025
Permits on file
6
Phone
(318) 751-3917

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleUnbridled Resources LLC
Production reportsUnbridled Resources, LLCthrough May 2015
Latest permitDominion Oklahoma Texas E&P, IncDec 28, 2001

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

11,610
total depth, ft
1
permits on file
Dec 28, 2001
last permit issued
Mar 14, 2002
completed
11.2K
cumulative oil, bbl
464K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · MAR 2002 THROUGH MAY 2015

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 14, 2002
Shut in
Jul 1, 2013
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Zybach 66 G-14-188774Buffalo Wallow (Granite Wash)Unbridled Resources, LLC111.2K464KMar 2002 – May 2015

No volumes reported on these leases in the last three years.

Wells named Zybach 66

Unbridled Resources LLC's other wells filed under this lease name in Hemphill County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Dominion Oklahoma Texas E&P, IncMar 2002 → Aug 2007
  2. 2Linn Operating, Inc.Sep 2007 → Jun 2013
  3. 3Enervest Operating, L.L.C.May 2015 → May 2015

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
516484-99DrillDominion Oklahoma Texas E&P, IncDec 28, 2001Dec 28, 2001Jan 25, 200211,700

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 14, 2002Zybach 66 G-14-188774Buffalo Wallow (Granite Wash)Unbridled Resources LLCTemp Abandoned · shut in Jul 1, 201311,610

Formation tops

As filed on W-2/G-1. Subsea from 2,700 ft elevation.Download CSV →

FormationMD ftSubsea
T/Brown Dolomite4,685-1,985
B/Heebner-T/Douglas8,120-5,420
T/Tonkawa8,894-6,194
Avant LS9,492-6,792
T/Granite Wash10,072-7,372
T/Granite Wash A&b11,232-8,532

Perforations

Perforated and open-hole intervals.

FromToType
11,00711,462Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,54712.25660 S
5.511,5807.875300 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jul 8, 2002May 9, 2002Yes
00Jun 3, 2002——

Well logs

The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.

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The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/21132560, documented in the API reference.