WELL · 42-211-35395 · DISTRICT 10

Arnold #1045HD

Y

Hemphill County · Feldman (Tonkawa) field · Producing  · Horizontal

Arnold #1045HD (API 42-211-35395) is a horizontal well in Hemphill County operated by Unbridled Resources LLC, completed December 13, 2014 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued August 13, 2014, permitted to 9,000 ft.

It was permitted by 4p Energy Texas, LLC and has since transferred to Unbridled Resources LLC on the wellbore schedule.

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

Its lease has reported 165K barrels of oil and 353K mcf of gas since December 2014, last reporting in July 2026.

Operator of record

Unbridled Resources LLC

Permitted by 4P Energy Texas, LLC; 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 2026
Latest permit4P Energy Texas, LLCAug 13, 2014

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

9,000
total depth, ft
1
permits on file
Aug 13, 2014
last permit issued
Dec 13, 2014
completed
165K
cumulative oil, bbl
353K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 13, 2014
Shut in
—
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
Arnold O-14-9299Feldman (Tonkawa)Unbridled Resources, LLC1165K353KDec 2014 – Jul 2026

Oil, barrels lease total

Last 12 months 5,917 · prior 12 5,133(+15%)

05001K202420252026

Gas, mcf lease total

Last 12 months 25,136 · prior 12 4,729(+432%)

01K2K3K202420252026

Chain of custody

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

  1. 1Enervest Operating, L.L.C.Mar 2015 → Dec 2015
  2. 24P Energy Texas, LLCJan 2016 → Oct 2020
  3. 3Unbridled Resources, LLCNov 2020 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
791680-99Drill4P Energy Texas, LLCJul 14, 2014Aug 13, 2014Aug 21, 20149,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-14-9299————

Formation tops

As filed on W-2/G-1. Subsea from 2,537 ft elevation.Download CSV →

FormationMD ftSubsea
Brown DolomiteBROWN DOLOMITE - PROD, PRESSURED3,903-1,366
Topeka5,284-2,747
Douglas7,113-4,576
Tonkawa7,790-5,253
Brownsville——
Cleveland——
Kansas CityKANSAS CITY (HOGSHOOTER)——
OswegoOSWEGO UPPER——
PennsylvanianPENNSYLVANIAN (MARMATON)——
PennsylvanianPENNSYLVANIAN SAND——

Perforations

Perforated and open-hole intervals.

FromToType
8,2008,378Perforated
8,4138,563Perforated
8,5938,743Perforated
8,7738,923Perforated
8,9539,103Perforated
9,1339,283Perforated
9,3139,513Perforated
9,5539,778Perforated
9,8239,973Perforated
10,00310,153Perforated
10,18310,333Perforated
10,36310,513Perforated
10,54310,693Perforated
10,72310,873Perforated
10,90311,053Perforated
11,08311,233Perforated
11,26311,413Perforated
11,44311,593Perforated
11,62311,773Perforated
11,80311,953Perforated
11,98312,133Perforated
12,16312,313Perforated
12,34312,493Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.62563412.25618 S
77,1868.75359 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
00Jun 16, 2015Jan 21, 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/21135395, documented in the API reference.