WELL · 42-409-01640 · DISTRICT 4
Welder M.S. #6
San Patricio County · Portilla (8500 Sand) field · Vertical
Welder M.S. #6 (API 42-409-01640) is a well in San Patricio County operated by Mobil Producing TX. & N.M. Inc., completed September 1, 1985.
The RRC has issued 3 drilling permits (amended once) between 1985 and 1997, permitted to 8,897 ft.
It was permitted by Abraxas Petroleum Corporation and has since transferred to Mobil Producing TX. & N.M. Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including 7400 Sand, 7400' Sand, 8100 Sand, 8100' Sand.
Its 3 leases have reported 3.35M barrels of oil and 8.33M mcf of gas since January 1993, last reporting in July 2026. The leases carry 154 wells, so these are lease totals, not this well alone.
Operator of record
Mobil Producing TX. & N.M. Inc.
Permitted by Abraxas Petroleum Corporation; the EWA schedule now lists a different operator.
Spring, TX · P-5 Y, filed May 4, 2026 · 6,763 permits on file · (281) 773-7706
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mobil Producing TX. & N.M. Inc. |
| Production reports | Allegiant Resources, LLCthrough Apr 2026 |
| Latest permit | Abraxas Petroleum CorporationMar 5, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,897
- total depth, ft
- 4
- permits on file
- Mar 5, 1997
- last permit issued
- Sep 1, 1985
- completed
- 3.35M
- cumulative oil, bbl
- 8.33M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 1, 1985
- 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 3 leases this well is completed on; they carry 154 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Welder, Minnie S. G-4-160573 | Plymouth (7000) | Allegiant Resources, LLC | 1 | 0 | 957K | Jul 1996 – Jul 2026 |
| Welder, Minnie S. O-4-12594 | Portilla (Frio) | Allegiant Resources, LLC | 110 | 2.66M | 5.72M | Sep 1996 – Jul 2026 |
| Welder, Minnie S. O-4-2178 | Portilla (7400 Sand) | Abraxas Petroleum Corporation | 43 | 686K | 1.65M | Jan 1993 – Nov 1996 |
Oil, barrels lease total
Last 12 months 11,265 · prior 12 23,209(-51%)
Gas, mcf lease total
Last 12 months 44,651 · prior 12 31,729(+41%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Mar 1993
- 2Abraxas Production CorporationApr 1993 → Jan 1996
- 3Abraxas Petroleum CorporationFeb 1996 → Aug 2016
- 4Frostwood Energy, LLCSep 2016 → Jan 2021
- 5Allegiant Resources, LLCFeb 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 458820-99 | Recompletion | Abraxas Petroleum Corporation | Feb 18, 1997 | Mar 5, 1997 | Mar 6, 1997 | 8,897 |
| 449150-98 | Recompletion | Abraxas Petroleum Corporation | Nov 19, 1996 | Jun 12, 1996 | Jun 20, 1996 | 8,897 |
| 449150-99 | Recompletion | Abraxas Petroleum Corporation | Jun 11, 1996 | Jun 12, 1996 | — | 8,897 |
| 280942-99 | Recompletion | Superior Oil Company, The | Jul 23, 1985 | Jul 24, 1985 | — | 8,560 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-160573 | — | — | — | — |
| — | — O-4-2178 | — | — | — | — |
| — | — O-4-12594 | — | — | — | — |
| — | — O-4-12594 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 55 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| 7400 Sand | 7,402 | -7,347 |
| 7400' Sand | 7,402 | -7,347 |
| 8100 Sand | 8,126 | -8,071 |
| 8100' Sand | 8,126 | -8,071 |
| 8500 Sand | 8,578 | -8,523 |
| 8500' Sand | 8,578 | -8,523 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,818 | 6,822 | Perforated |
| 6,910 | 6,920 | Perforated |
| 7,096 | 7,102 | Perforated |
| 7,366 | 7,370 | Perforated |
| 7,400 | 7,406 | Perforated |
| 7,456 | 7,460 | Perforated |
| 8,580 | 8,593 | Perforated |
| 8,587 | 8,592 | Perforated |
| — | 7,246 | Perforated |
| — | 7,398 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,264 | — | — |
| 7 | 8,560 | — | — |
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 19, 1998 | Jan 23, 1998 | Yes |
| 00 | Apr 23, 1998 | Feb 19, 1988 | Yes |
| 00 | Feb 13, 1997 | Jul 30, 1996 | Yes |
| 00 | Nov 26, 1996 | — | — |
| 00 | Sep 5, 1996 | Feb 19, 1988 | Yes |
| 00 | Apr 20, 1988 | Feb 19, 1988 | Yes |
| 00 | Mar 10, 1988 | Jan 22, 1987 | — |
| 00 | Feb 25, 1987 | Jan 22, 1987 | — |
| 00 | Feb 19, 1987 | Jan 22, 1987 | — |
| 00 | Dec 10, 1985 | Nov 20, 1985 | — |
| 00 | Nov 28, 1985 | Sep 30, 1985 | — |
| 00 | Oct 22, 1985 | Sep 30, 1985 | — |
| 00 | Oct 21, 1985 | Sep 30, 1985 | — |
| 00 | Oct 11, 1985 | — | — |
| 00 | Jan 12, 1984 | Oct 27, 1961 | — |
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 42-409-01640 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-409-01640 → 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/40901640, documented in the API reference.