TEXAS · WELLS · BRAZOS COUNTY · API 42-041-31588 · DISTRICT 03
McCullough-McCullough Unit #1RE
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
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Enervest Operating L.L.C. |
| Production reports | Magnolia Oil & Gas Operating LLCthrough Jan 2024 |
| Latest permit | Enervest 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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McCullough-McCullough Unit O-3-25536 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 1 | 15.4K | 298K | Mar 2010 – Oct 2024 |
| McCullough-McCullough Unit G-3-143450 | Giddings (Austin Chalk, Gas) | Enervest Operating, L.L.C. | 1 | 0 | 1.53M | Jan 1993 – May 2010 |
| McCullough-McCullough Unit O-3-21619 | Giddings (Austin Chalk-3) | Union Pacific Resources Company | 1 | 0 | 0 | Jan 1993 – Mar 1993 |
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Pacific Resources CompanyJan 1993 → Jan 2001
- 2Rme Petroleum CompanyFeb 2001 → Nov 2002
- 3Anadarko E&P Company LPDec 2002 → Mar 2004
- 4Enervest Operating, L.L.C.Mar 2010 → Jul 2018
- 5Magnolia Oil & Gas Operating LLCAug 2018 → Jan 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 682972-98 | Recompletion | Enervest Operating, L.L.C. | Apr 9, 2010 | Jul 15, 2009 | Nov 27, 2009 | 12,500 |
| 682972-99 | Recompletion | Enervest Operating, L.L.C. | Jul 13, 2009 | Jul 15, 2009 | — | 12,500 |
| 396577-99 | Drill | Union Pacific Resources Company | Feb 11, 1992 | Feb 11, 1992 | Apr 26, 1992 | 15,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 2, 2010 | McCullough-McCullough Unit O-3-25536 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Plugged | — |
| Jun 28, 1992 | McCullough-McCullough Unit G-3-143450 | Giddings (Austin Chalk Gas) | Enervest Operating L.L.C. | Plugged | — |
| Jun 28, 1992 | McCullough-McCullough Unit O-3-21619 | Giddings (Austin Chalk-3) | Union Pacific Resources Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 218 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 6,730 | -6,512 |
| Navarro | 7,718 | -7,500 |
| Pecan Gap | 9,977 | -9,759 |
| Austin Chalk | 10,357 | -10,139 |
| Austin Chalk | 10,598 | -10,380 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,727 | 14,450 | Perforated |
| 10,727 | 14,450 | Open hole |
| 10,911 | 14,566 | Perforated |
| 11,979 | 13,945 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,930 | 14.75 | 1,050 S |
| 7.625 | 10,727 | 9.875 | 447 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 3, 2010 | May 28, 2010 | Yes |
| 00 | Aug 13, 2010 | — | — |
| 00 | Mar 18, 1993 | Dec 16, 1992 | — |
| 00 | Jan 11, 1993 | — | — |
| 00 | Sep 15, 1992 | Jul 15, 1992 | Yes |
| 00 | Sep 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.
- Wellbore filings for 42-041-31588 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-041-31588 → scanned completion filings
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.