TEXAS · WELLS · WHEELER COUNTY · HEFLEY 34 LEASE · API 42-483-32495 · DISTRICT 08

Hefley 34 #8

Shut in

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

Hefley 34 #8 (API 42-483-32495) is a well in Wheeler County operated by Unbridled Resources LLC, completed January 10, 2008 and listed as producing on the RRC schedule, shut in May 1, 2024.

The RRC has issued 2 drilling permits between 2007 and 2011, permitted to 13,831 ft.

It was permitted by Linn Operating, 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.

No lease production has been reported under this well’s leases.

Operator of record

Unbridled Resources LLC

Permitted by Linn Operating, 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 Apr 2024
Latest permitLinn Operating, Inc.Oct 11, 2011

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

13,831
total depth, ft
2
permits on file
Oct 11, 2011
last permit issued
Jan 10, 2008
completed
0
cumulative oil, bbl
665K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 10, 2008
Shut in
May 1, 2024
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.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 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
Hefley 34 G-14-249592Dyco (Granite Wash)Unbridled Resources, LLC10665KJan 2008 – Jul 2026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

01K2K3K202420252026

Chain of custody

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

  1. 1Linn Operating, Inc.Jan 2008 → Dec 2014
  2. 2Enervest Operating, L.L.C.Jan 2015 → Mar 2018
  3. 34P Energy Texas, LLCApr 2018 → Oct 2020
  4. 4Unbridled Resources, LLCNov 2020 → Apr 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
724734-99Field transferLinn Operating, Inc.Sep 21, 2011Oct 11, 2011Nov 12, 200714,500
647845-99DrillLinn Operating, Inc.Oct 16, 2007Oct 30, 2007Nov 12, 200714,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Jan 10, 2008Hefley 34 G-14-249592Buffalo Wallow (Granite Wash)Unbridled Resources LLCProducing · shut in May 1, 202413,831
Jan 10, 2008Hefley 34 G-14-249592Buffalo Wallow (Granite Wash)Unbridled Resources LLCProducing · shut in May 1, 202413,831

Formation tops

As filed on W-2/G-1. Subsea from 2,560 ft elevation.Download CSV →

FormationMD ftSubsea
T/Brown Dolomite4,585-2,025
B/Heebner-T/Douglas8,191-5,631
T/Tonkawa9,016-6,456
Avant LS9,674-7,114
T/Britt Granite Wash11,405-8,845
T/Atoka Wash12,887-10,327
T/Britt Granite Wash——
T/Brown Dolomite——
T/Tonkawa——

Perforations

Perforated and open-hole intervals.

FromToType
11,41213,688Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6253,23012.251,875 S
5.513,8257.875620 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. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jan 6, 2014Oct 10, 2013—
00Apr 13, 2012Oct 20, 2011—
00Sep 16, 2009Apr 2, 2008Yes
00Jul 27, 2009——

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.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

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/48332495, documented in the API reference.