TEXAS · WELLS · WHEELER COUNTY · ZYBACH 65 LEASE · API 42-483-31715 · DISTRICT 08

Zybach 65 #11

Shut in

Wheeler County · Buffalo Wallow (Granite Wash) field · Producing  · Vertical

Zybach 65 #11 (API 42-483-31715) is a well in Wheeler County operated by Unbridled Resources LLC, completed July 18, 2006 and listed as producing on the RRC schedule, shut in September 1, 2020.

The RRC has issued one drilling permit (amended once), issued July 16, 2004, permitted to 13,921 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 12 formation tops, including T/Brown Dolomite, B/Heebner-T/Douglas, T/Tonkawa, Avant Ls.

Its lease has reported 10.7K barrels of oil and 390K mcf of gas since July 2006, 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 Jan 2021
Latest permitDominion Oklahoma Texas E&P, IncJul 16, 2004

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

13,921
total depth, ft
2
permits on file
Jul 16, 2004
last permit issued
Jul 18, 2006
completed
10.7K
cumulative oil, bbl
390K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · JUL 2006 THROUGH JAN 2021

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 18, 2006
Shut in
Sep 1, 2020
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 65 G-14-218761Buffalo Wallow (Granite Wash)Unbridled Resources, LLC110.7K390KJul 2006 – Jan 2021

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

Wells named Zybach 65

Unbridled Resources LLC's other wells filed under this lease name in Wheeler 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.

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Chain of custody

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

  1. 1Dominion Oklahoma Texas E&P, IncJul 2006 → Aug 2007
  2. 2Linn Operating, Inc.Sep 2007 → Dec 2014
  3. 3Enervest Operating, L.L.C.Jan 2015 → Mar 2018
  4. 44P Energy Texas, LLCApr 2018 → Aug 2020

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
548353-98DrillDominion Oklahoma Texas E&P, IncJan 13, 2005Jul 16, 2004May 5, 200614,400
548353-99DrillDominion Oklahoma Texas E&P, IncJul 16, 2004Jul 16, 2004May 5, 200612,050

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 18, 2006Zybach 65 G-14-218761Buffalo Wallow (Granite Wash)Unbridled Resources LLCProducing · shut in Sep 1, 202013,921

Formation tops

As filed on W-2/G-1. Subsea from 2,675 ft elevation.Download CSV →

FormationMD ftSubsea
T/Brown Dolomite4,664-1,989
B/Heebner-T/Douglas8,100-5,425
T/Tonkawa8,860-6,185
Avant LS9,453-6,778
T/Britt Granite Wash11,139-8,464
T/Granite Wash "A"11,248-8,573
T/Granite Wash "B"11,527-8,852
T/Granite Wash "C"11,719-9,044
T/Granite Wash "D"12,044-9,369
T/Granite Wash Shale "E"12,097-9,422
T/Atoka Wash12,600-9,925
T/13 Fingers LS13,812-11,137

Perforations

Perforated and open-hole intervals.

FromToType
11,04413,634Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6253,35512.252,035 S
5.513,9157.875560 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
00Jan 26, 2007Aug 14, 2006Yes
00Sep 7, 2006——

Well logs

1 log loaded from the RRC's log index, the latest received Mar 7, 2007. Resistivity.

Click a log to get its files from the RRC (free account). It opens in a new tab on the RRC's log search for this well, which lists each file to view or download; the RRC has no address for a single file.

Logas describedFiles Intervalft, as filedDatereceivedSizeMB
ResistivityPLATFORM EXPRESS ARRAY INDUCTIONSpans T/Brown Dolomite, B/Heebner-T/Douglas, T/Tonkawa, Avant Ls, T/Britt Granite Wash, T/Granite Wash "A", T/Granite Wash "B", T/Granite Wash "C", T/Granite Wash "D", T/Granite Wash Shale "E", T/Atoka Wash, T/13 Fingers LsTIFF3,359 to 13,921Mar 7, 2007run Jun 6, 2006—

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Find logs withinmiles of this well:List →Map →

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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/48331715, documented in the API reference.