WELL · 42-041-31710 · DISTRICT 3
McCullough-Terry Unit #1
Brazos County · Giddings (Austin Chalk-3) field · Horizontal
Mccullough-Terry Unit #1 (API 42-041-31710) is a horizontal well in Brazos County operated by Magnolia Oil & Gas Operating LLC, completed July 1, 1993.
The RRC has issued one drilling permit, issued December 23, 1992, permitted to 15,500 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 4 formation tops, including Midway, Navarro, Pecan Gap, Austin Chalk.
Its 2 leases have reported 77K barrels of oil and 1.03M mcf of gas since July 1993, last reporting in July 2026. The leases carry 2 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 schedule | Magnolia Oil & Gas Operating LLC |
| Production reports | Magnolia Oil & Gas Operating LLCthrough Jan 2024 |
| Latest permit | Union Pacific Resources CompanyDec 23, 1992 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 15,500
- total depth, ft
- 1
- permits on file
- Dec 23, 1992
- last permit issued
- Jul 1, 1993
- completed
- 77K
- cumulative oil, bbl
- 1.03M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 1, 1993
- Shut in
- —
- Plugged
- —
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McCullough-Terry Unit G-3-286277 | Giddings (Austin Chalk, Gas) | Magnolia Oil & Gas Operating LLC | 1 | 0 | 7.12K | Dec 2018 – Jul 2026 |
| McCullough-Terry Unit O-3-22138 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 1 | 77K | 1.02M | Jul 1993 – Aug 2019 |
Gas, mcf 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 CompanyJul 1993 → Jan 2001
- 2Rme Petroleum CompanyFeb 2001 → Nov 2002
- 3Anadarko E&P Company LPDec 2002 → Jul 2007
- 4Enervest Operating, L.L.C.Aug 2007 → Jul 2016
- 5Magnolia Oil & Gas Operating LLCDec 2018 → Jan 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 407610-99 | Drill | Union Pacific Resources Company | Dec 23, 1992 | Dec 23, 1992 | May 4, 1993 | 15,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-286277 | — | — | — | — |
| — | — O-3-22138 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 220 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 6,614 | -6,394 |
| Navarro | 8,524 | -8,304 |
| Pecan Gap | 9,594 | -9,374 |
| Austin Chalk | 10,424 | -10,204 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,576 | 13,942 | Perforated |
| 10,795 | 11,304 | Perforated |
| 11,195 | 11,887 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,120 | 14.75 | 1,600 S |
| 7.625 | 10,576 | 9.875 | 500 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 | May 6, 2019 | Feb 14, 2019 | — |
| 00 | Oct 11, 1993 | Aug 31, 1993 | Yes |
| 00 | Sep 23, 1993 | — | — |
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 42-041-31710 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-041-31710 → 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/04131710, documented in the API reference.