TEXAS · WELLS · WHEELER COUNTY · ELMORE 21 LEASE · API 42-483-33876 · DISTRICT 08

Elmore 21 #12H

Shut in

Wheeler County · Allison-Britt (12350) field · Producing  · Horizontal

Elmore 21 #12H (API 42-483-33876) is a horizontal well in Wheeler County operated by Unbridled Resources LLC, completed January 30, 2015 and listed as producing on the RRC schedule, shut in April 1, 2024.

The RRC has issued one drilling permit, issued September 12, 2014, permitted to 12,099 ft.

It was permitted by Chesapeake Operating, Inc. and has since transferred to Unbridled Resources LLC on the wellbore schedule.

Completion filings report 9 formation tops, including Brown Dolomite, Pennsylvanian, Douglas, Tonkawa.

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

Operator of record

Unbridled Resources LLC

Permitted by Chesapeake 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 Mar 2024
Latest permitChesapeake Operating, Inc.Sep 12, 2014

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

12,099
total depth, ft
1
permits on file
Sep 12, 2014
last permit issued
Jan 30, 2015
completed
0
cumulative oil, bbl
1.45M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2015 THROUGH Mar 2024

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 30, 2015
Shut in
Apr 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
Elmore 21 G-14-278157Allison-Britt (12350)Unbridled Resources, LLC101.45MJan 2015 – Jul 2026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

05K10K202420252026

Chain of custody

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

  1. 1Chesapeake Operating, L.L.C.Jan 2015 → Jun 2016
  2. 24P Energy Texas, LLCJul 2016 → Oct 2020
  3. 3Unbridled Resources, LLCNov 2020 → Mar 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
792231-99DrillChesapeake Operating, Inc.Jul 21, 2014Sep 12, 2014Oct 25, 201416,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Jan 30, 2015Elmore 21 G-14-278157Allison-Britt (12350)Unbridled Resources LLCProducing · shut in Apr 1, 202412,099

Formation tops

As filed on W-2/G-1. Subsea from 2,569 ft elevation.Download CSV →

FormationMD ftSubsea
Brown DolomiteBROWN DOLOMITE (UPPER) - PANHAND4,681-2,112
Brown DolomiteBROWN DOLOMITE (LOWER) - PRESSUR5,163-2,594
PennsylvanianPENNSYLVANIAN SHALE7,716-5,147
Douglas8,741-6,172
Tonkawa9,567-6,998
Blaine - Pressured (Artisian) AN——
GlorietaGLORIETA - OLD WATERFLOOD; CORRO——
Granite Washe - Panhandle Field——
Granite Washes——
Wichita-AlbanyWICHITA DOLOMITE——

Perforations

Perforated and open-hole intervals.

FromToType
12,49116,361Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37549017.51,152 S
9.6256,60012.252,674 S
5.516,4638.751,874 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
00Oct 20, 2015Feb 26, 2015Yes

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/48333876, documented in the API reference.