WELL · 42-409-33116 · DISTRICT 4
Southwest Texas Corp #1
San Patricio County · Spartan (8800 Frio Lower) field · Vertical
Southwest Texas Corp #1 (API 42-409-33116) is a well in San Patricio County operated by Poco LLC, completed August 7, 2019.
The RRC has issued 3 drilling permits (amended once) between 2019 and 2023, permitted to 8,900 ft.
Completion filings report 7 formation tops, including Miocene (undifferentiated), Catahoula, Greta, Sinton.
Its 3 leases have reported 13.9K barrels of oil and 374K mcf of gas since August 2019, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Jul 4, 2026 · 19 permits on file · (832) 767-9659
SOURCE · RRC EWA WELLBORE SCHEDULE
- 8,900
- total depth, ft
- 4
- permits on file
- Feb 24, 2023
- last permit issued
- Aug 7, 2019
- completed
- 13.9K
- cumulative oil, bbl
- 374K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 7, 2019
- Shut in
- —
- Plugged
- —
Surface location
27.996588, -97.551735
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in San Patricio County.
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 |
|---|---|---|---|---|---|---|
| Southwest Texas Corp O-4-14197 | Spartan (5600) | Poco LLC | 1 | 11.3K | 44.7K | Jan 2023 – Jul 2026 |
| Southwest Texas Corp O-4-14158 | Spartan (F-A) | Poco LLC | 1 | 2.53K | 4.9K | Aug 2021 – Jun 2023 |
| Southwest Texas Corp G-4-289572 | Spartan (8800 Frio Lower) | Poco LLC | 1 | 0 | 324K | Aug 2019 – Oct 2021 |
Oil, barrels lease total
Last 12 months 0 · prior 12 1,454(-100%)
Gas, mcf lease total
Last 12 months 0 · prior 12 2,905(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Wapiti Operating, LLCSep 2019 → Jul 2020
- 2Poco LLCAug 2020 → Apr 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 888338-99 | Recompletion | Poco LLC | Feb 18, 2023 | Feb 24, 2023 | Jan 5, 2023 | 8,853 |
| 872351-99 | Recompletion | Poco LLC | Aug 30, 2021 | Sep 2, 2021 | — | 8,853 |
| 854089-98 | Drill | Wapiti Operating, LLC | Feb 27, 2020 | Jun 18, 2019 | Jul 5, 2019 | 8,900 |
| 854089-99 | Drill | Wapiti Operating, LLC | Jun 11, 2019 | Jun 18, 2019 | Jul 4, 2019 | 8,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-289572 | — | — | — | — |
| — | — O-4-14158 | — | — | — | — |
| — | — O-4-14197 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 50 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Miocene (undifferentiated)MIOCENE-LAGARTO-OAKVILLE - INJEC | 100 | -50 |
| CatahoulaCATAHOULA-ANAHUAC - INJECTION/DI | 3,563 | -3,513 |
| CatahoulaCATAHOULA-FRIO - INJECTION/DISPO | 3,563 | -3,513 |
| Greta | 4,188 | -4,138 |
| Sinton | 5,518 | -5,468 |
| FrioBASAL FRIO | 7,199 | -7,149 |
| Basil Frio | 7,199 | -7,149 |
| Vicksburg | 8,106 | -8,056 |
| CatahoulaCATAHOULA-ANAHUAC - INJECTION/DI | — | — |
| CatahoulaCATAHOULA-FRIO - INJECTION/DISPO | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,482 | 5,486 | Perforated |
| 5,746 | 5,756 | Perforated |
| 7,200 | 7,206 | Perforated |
| 8,464 | 8,776 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,559 | 12.25 | 910 S |
| 5.5 | 8,856 | 8.75 | 1,410 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 | Jun 23, 2025 | Jun 8, 2025 | — |
| 00 | Apr 14, 2023 | Feb 25, 2023 | — |
| 00 | Sep 21, 2021 | Sep 13, 2021 | — |
| 00 | Aug 14, 2020 | Jun 29, 2020 | Yes |
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 42-409-33116 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-409-33116 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Frwl42-409-33135
0.5 KM · Poco LLC · Section with this well →
| Miocene (undifferentiated) | 100 | -48 |
| Catahoula | 3,605 | -3,553 |
| Catahoula | — | |
| Vicksburg | — |
Dungan-Key Trust42-409-33122
1.9 KM · Wapiti Operating, LLC · Section with this well →
| Miocene (undifferentiated) | 3,050 | -2,985 |
| Catahoula | 3,050 | -2,985 |
| Catahoula | 4,360 | -4,295 |
| Vicksburg | 7,050 | -6,985 |
Dungan-Key Trust42-409-33104
2.1 KM · Wapiti Operating, LLC · Section with this well →
| Miocene (undifferentiated) | 3,050 | -2,988 |
| Catahoula | 3,050 | -2,988 |
| Catahoula | 4,360 | -4,298 |
| Vicksburg | 7,050 | -6,988 |
LLD-Moonraker Unit42-409-33126
2.8 KM · Poco LLC · Section with this well →
| Miocene (undifferentiated) | 100 | -23 |
| Catahoula | 3,800 | -3,723 |
| Catahoula | 4,880 | -4,803 |
| Vicksburg | 8,350 | -8,273 |
Baylor Whatley Unit42-409-32788
2.9 KM · Poco LLC · Section with this well →
| Catahoula | 3,616 | -3,538 |
| Frio | 3,890 | -3,812 |
| Sinton | 5,460 | -5,382 |
| Frio | 6,952 | -6,874 |
| Hightower | 7,174 | -7,096 |
| Catahoula | — | |
| Vicksburg | — | |
| Miocene (undifferentiated) | — |
LLD-Moonraker Unit42-409-33133
2.9 KM · Poco LLC · Section with this well →
| Miocene (undifferentiated) | 100 | -23 |
| Catahoula | 3,800 | -3,723 |
| Catahoula | 4,880 | -4,803 |
| Vicksburg | 8,350 | -8,273 |
Nye42-409-33060
4.0 KM · Nye Exploration & Prod, L.L.C. · Section with this well →
| Miocene (undifferentiated) | 1,170 | -1,120 |
| Catahoula | 2,900 | -2,850 |
| Catahoula | 3,990 | -3,940 |
| Vicksburg | — |
Hay Day Unit42-409-33130
6.9 KM · Sandalwood Exploration, L.P. · Section with this well →
| Miocene (undifferentiated) | 800 | -744 |
| Catahoula | 4,369 | -4,313 |
| Catahoula | 5,271 | -5,215 |
| Vicksburg | — |
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/40933116, documented in the API reference.