WELL · 42-331-33488 · DISTRICT 3

Holden-Moore Unit #1

Y

Milam County · Giddings (Austin Chalk-3) field · Producing  · Horizontal

Holden-Moore Unit #1 (API 42-331-33488) is a horizontal well in Milam County operated by Magnolia Oil & Gas Operating LLC, completed November 24, 1997 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued September 15, 1997, permitted to 11,122 ft.

It was permitted by Union Pacific Resources Company and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Austin Chalk, Buda, Georgetown.

Its lease has reported 1.56M barrels of oil and 1.29M mcf of gas since November 1997, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.

Operator of record

Magnolia Oil & Gas Operating LLC

Permitted by Union Pacific Resources Company; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 6, 2026
Permits on file
615
Phone
(713) 842-9050

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMagnolia Oil & Gas Operating LLC
Production reportsMagnolia Oil & Gas Operating LLCthrough Apr 2026
Latest permitUnion Pacific Resources CompanySep 15, 1997

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

11,122
total depth, ft
1
permits on file
Sep 15, 1997
last permit issued
Nov 24, 1997
completed
1.56M
cumulative oil, bbl
1.29M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 1997 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 24, 1997
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; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Holden-Moore Unit O-3-23412Giddings (Austin Chalk-3)Magnolia Oil & Gas Operating LLC31.56M1.29MNov 1997 – Jul 2026

Oil, barrels lease total

Last 12 months 31,098 · prior 12 38,968(-20%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 113,914 · prior 12 138,742(-18%)

010K20K202420252026

Chain of custody

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

  1. 1Union Pacific Resources CompanyDec 1997 → Jan 2001
  2. 2Rme Petroleum CompanyFeb 2001 → Nov 2002
  3. 3Anadarko E&P Company LPDec 2002 → Dec 2012
  4. 4Anadarko E&P Onshore LLCJan 2013 → Aug 2016
  5. 5Treadstone Energy Prtnr OP, LLCSep 2016 → Nov 2021
  6. 6LRR Pecos Valley, LLCDec 2021 → Nov 2023
  7. 7Magnolia Oil & Gas Operating LLCDec 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
467551-99DrillUnion Pacific Resources CompanySep 15, 1997Sep 15, 1997Sep 24, 19977,300

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 24, 1997Holden-Moore Unit O-3-23412Giddings (Austin Chalk-3)Magnolia Oil & Gas Operating LLCProducing11,122

Formation tops

As filed on W-2/G-1. Subsea from 302 ft elevation.Download CSV →

FormationMD ftSubsea
Austin Chalk5,522-5,220
Buda6,082-5,780
Georgetown6,180-5,878

Perforations

Perforated and open-hole intervals.

FromToType
5,52710,868Perforated
5,54310,510Perforated
5,55510,678Perforated
5,60610,448Perforated
6,04211,122Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,23514.75460 S
7.6256,4269.875445 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
00Mar 5, 1998Feb 17, 1998Yes
00Feb 27, 1998——

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/33133488, documented in the API reference.