WELL · 42-479-34775 · DISTRICT 1
Withers Mary K. #4
Webb County · Maguellitos NE. (Wilcox 6900) field · Vertical
Withers Mary K. #4 (API 42-479-34775) is a plugged well in Webb County, plugged July 17, 1995, last operated by First United Oil & Gas Corp..
The RRC has issued one drilling permit, issued November 9, 1988, permitted to 9,000 ft.
It was permitted by Buffalo Petroleum Corp. and has since transferred to First United Oil & Gas Corp. on the wellbore schedule.
Completion filings report 5 formation tops, including Yegua, Ck Mt, Carrizo, Wx.
Operator of record
Permitted by Buffalo Petroleum Corp.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Jan 4, 2026 · 37 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | First United Oil & Gas Corp. |
| Production reports | none |
| Latest permit | Buffalo Petroleum Corp.Nov 9, 1988 |
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
- Nov 9, 1988
- last permit issued
- Jan 13, 1989
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 1995
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 13, 1989
- Shut in
- —
- Plugged
- Jul 17, 1995
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Withers, Mary K. G-1-144937 | Maguellitos, NE. (Wilcox 6900) | First United Oil & Gas Corp. | 1 | 0 | 0 | Jan 1993 – Jul 1995 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 353114-99 | Drill | Buffalo Petroleum Corp. | Nov 8, 1988 | Nov 9, 1988 | Dec 23, 1988 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-144937 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 400 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,985 | 7,095 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 807 | 11 | 177 S |
| 4.5 | 7,276 | 7.875 | 725 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 25, 1993 | Apr 25, 1991 | — |
| 00 | May 3, 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 42-479-34775 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-34775 → 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/47934775, documented in the API reference.