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TEXAS · WELLS · BRAZOS COUNTY · API 42-041-31588 · DISTRICT 03

McCullough-McCullough Unit #1RE

Plugged

Brazos County · Giddings (Austin Chalk-3) field  · Horizontal

Mccullough-Mccullough Unit #1RE (API 42-041-31588) is a plugged horizontal well in Brazos County, plugged September 25, 2024, last operated by Magnolia Oil & Gas Operating LLC.

The RRC has issued 2 drilling permits (amended once) between 1992 and 2009, permitted to 15,400 ft.

It was permitted by Enervest Operating, L.L.C. and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Midway, Navarro, Pecan Gap, Austin Chalk.

Its 3 leases have reported 15.4K barrels of oil and 1.82M mcf of gas since January 1993, last reporting in October 2024. The leases carry 3 wells, so these are lease totals, not this well alone.

Operator of record

Magnolia Oil & Gas Operating LLC

Permitted by Enervest Operating, L.L.C.; 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
Watch this operatorWatch Brazos County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMagnolia Oil & Gas Operating LLC
Production reportsMagnolia Oil & Gas Operating LLCthrough Jan 2024
Latest permitEnervest Operating, L.L.C.Jul 15, 2009

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

15,400
total depth, ft
3
permits on file
Jul 15, 2009
last permit issued
Mar 2, 2010
completed
15.4K
cumulative oil, bbl
1.82M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2024

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Mar 2, 2010
Shut in
—
Plugged
Sep 25, 2024

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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
McCullough-McCullough Unit O-3-25536Giddings (Austin Chalk-3)Magnolia Oil & Gas Operating LLC115.4K298KMar 2010 – Oct 2024
McCullough-McCullough Unit G-3-143450Giddings (Austin Chalk, Gas)Enervest Operating, L.L.C.101.53MJan 1993 – May 2010
McCullough-McCullough Unit O-3-21619Giddings (Austin Chalk-3)Union Pacific Resources Company100Jan 1993 – Mar 1993

Gas, mcf lease total

Last 12 months 0 · prior 12 0

05001K1.5K202420252026

Oil, barrels lease total

Last 12 months 0 · prior 12 0

050100202420252026

Chain of custody

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

  1. 1Union Pacific Resources CompanyJan 1993 → Jan 2001
  2. 2Rme Petroleum CompanyFeb 2001 → Nov 2002
  3. 3Anadarko E&P Company LPDec 2002 → Mar 2004
  4. 4Enervest Operating, L.L.C.Mar 2010 → Jul 2018
  5. 5Magnolia Oil & Gas Operating LLCAug 2018 → Jan 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
682972-98RecompletionEnervest Operating, L.L.C.Apr 9, 2010Jul 15, 2009Nov 27, 200912,500
682972-99RecompletionEnervest Operating, L.L.C.Jul 13, 2009Jul 15, 2009—12,500
396577-99DrillUnion Pacific Resources CompanyFeb 11, 1992Feb 11, 1992Apr 26, 199215,400

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 2, 2010McCullough-McCullough Unit O-3-25536Giddings (Austin Chalk-3)Magnolia Oil & Gas Operating LLCPlugged—
Jun 28, 1992McCullough-McCullough Unit G-3-143450Giddings (Austin Chalk Gas)Enervest Operating L.L.C.Plugged—
Jun 28, 1992McCullough-McCullough Unit O-3-21619Giddings (Austin Chalk-3)Union Pacific Resources CompanyPlugged—

Formation tops

As filed on W-2/G-1. Subsea from 218 ft elevation.Download CSV →

FormationMD ftSubsea
Midway6,730-6,512
Navarro7,718-7,500
Pecan Gap9,977-9,759
Austin Chalk10,357-10,139
Austin Chalk10,598-10,380

Perforations

Perforated and open-hole intervals.

FromToType
10,72714,450Perforated
10,72714,450Open hole
10,91114,566Perforated
11,97913,945Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,93014.751,050 S
7.62510,7279.875447 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
00Nov 3, 2010May 28, 2010Yes
00Aug 13, 2010——
00Mar 18, 1993Dec 16, 1992—
00Jan 11, 1993——
00Sep 15, 1992Jul 15, 1992Yes
00Sep 1, 1992——

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/04131588, documented in the API reference.