WELL · 42-311-37004 · DISTRICT 1
STS D #2VI
McMullen County · Little Alamo (6200) field · Directional
Sts D #2VI (API 42-311-37004) is a plugged well in Mcmullen County, plugged March 9, 2021, last operated by Sierra Resources LLC.
The RRC has issued 2 drilling permits (amended once) between 2019 and 2022, permitted to 7,000 ft.
It was permitted by Vermillion Production, Inc. and has since transferred to Sierra Resources LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Frio, Yegua, Wilcox, Anacacho.
Its 2 leases have reported 520 barrels of oil and 502 mcf of gas since November 2019, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 1.07M barrels injected in the 12 months reported through October 2025; TexNet located 0 M2+ earthquakes within 10 km over the last two years.
Operator of record
Permitted by Vermillion Production, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Jul 2, 2021 · 72 permits on file · (832) 814-5586
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sierra Resources LLC |
| Production reports | Sierra Resources, LLCthrough Feb 2021 |
| Latest permit | Vermillion Production, Inc.Jul 26, 2022 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,000
- total depth, ft
- 3
- permits on file
- Jul 26, 2022
- last permit issued
- Nov 21, 2019
- completed
- 520
- cumulative oil, bbl
- 502
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 21, 2019
- Shut in
- —
- Plugged
- Mar 9, 2021
Surface location
28.266967, -98.784195
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in McMullen County.
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 |
|---|---|---|---|---|---|---|
| Greenbranch SWD G-1-293765 | Big Alamo (5550) | 4020 SWD, LLC | 1 | 0 | 0 | Sep 2022 – Jul 2026 |
| STS D O-1-20078 | Little Alamo (6200) | Sierra Resources, LLC | 1 | 520 | 502 | Nov 2019 – Aug 2021 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Sierra Resources, LLCNov 2019 → Feb 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 882404-99 | Reenter | Vermillion Production, Inc. | Jul 25, 2022 | Jul 26, 2022 | Sep 14, 2022 | 6,000 |
| 857029-98 | Drill | Sierra Resources, LLC | Feb 17, 2020 | Sep 13, 2019 | Oct 16, 2019 | 6,500 |
| 857029-99 | Drill | Sierra Resources, LLC | Sep 12, 2019 | Sep 13, 2019 | Oct 16, 2019 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-293765 | — | — | — | — |
| — | — O-1-20078 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 378 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| FrioFRIO - DISPOSAL | 200 | 178 |
| YeguaYEGUA - DISPOSAL | 2,048 | -1,670 |
| WilcoxWILCOX - DISPOSAL | 5,284 | -4,906 |
| Anacacho | — | — |
| Austin Chalk | — | — |
| CatahoulaCATAHOULA - DISPOSAL | — | — |
| Eagle FordEAGLE FORD - H2S | — | — |
| Escondido | — | — |
| Navarro | — | — |
| Olmos | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,576 | 5,620 | Perforated |
| 5,818 | 5,868 | Perforated |
| 6,199 | 6,237 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 7.625 | 5,350 | 9.875 | 1,070 S |
| 4.5 | 6,480 | 6.75 | 635 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 | Jan 26, 2023 | Jan 5, 2023 | Yes |
| 00 | May 22, 2020 | Feb 25, 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 42-311-37004 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-37004 → 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.
GB East42-311-37598
0.7 KM · 4020 SWD, LLC · Section with this well →
| Yegua | 900 | |
| Wilcox | 3,700 | |
| Austin Chalk | — | |
| Navarro | — | |
| Frio | — | |
| Catahoula | — | |
| Eagle Ford | — | |
| Escondido | — |
10 TOPS · FIRST 8
STS 'A'42-283-34432
2.5 KM · Welhausen Operating Company, LP · Section with this well →
| Sparta | 1,966 | -1,630 |
| Queen City | 2,226 | -1,890 |
| Reklaw | 3,480 | -3,144 |
| Carrizo | 3,959 | -3,623 |
| B/Carrizo | 5,188 | -4,852 |
| B/ Carrizo | 5,188 | -4,852 |
| Wales | 5,755 | -5,419 |
| Midway | 6,500 | -6,164 |
20 TOPS · FIRST 8
Sr Bregman42-283-36511
2.6 KM · Sierra Resources, LLC · Section with this well →
| Sparta | 1,771 | -1,399 |
| Queen City | 1,941 | -1,569 |
| Wilcox | 4,921 | -4,549 |
| Escondido | 7,517 | -7,145 |
| Olmos | 8,787 | -8,415 |
| Yegua | — | |
| Austin Chalk | — | |
| Buda | — |
10 TOPS · FIRST 8
Sr Altuve42-283-36513
2.6 KM · Sierra Resources, LLC · Section with this well →
| Sparta | 1,774 | -1,401 |
| Queen City | 1,987 | -1,614 |
| Wilcox | 4,925 | -4,552 |
| Escondido | 7,505 | -7,132 |
| Olmos | 8,768 | -8,395 |
| Eagle Ford | — | |
| Austin Chalk | — | |
| Buda | — |
10 TOPS · FIRST 8
STS AW C42-311-37275
3.2 KM · Blackbrush O & G, LLC · Section with this well →
| Yegua | 645 | -266 |
| Wilcox | 4,729 | -4,350 |
| Navarro | 5,940 | -5,561 |
| Escondido | 7,219 | -6,840 |
| Olmos | 8,772 | -8,393 |
| Anacacho | — | |
| Austin Chalk | — | |
| Catahoula | — |
10 TOPS · FIRST 8
STS AW A42-311-37274
3.2 KM · Blackbrush O & G, LLC · Section with this well →
| Yegua | 645 | -266 |
| Wilcox | 4,870 | -4,491 |
| Navarro | 5,937 | -5,558 |
| Escondido | 7,194 | -6,815 |
| Olmos | 8,771 | -8,392 |
| Frio | — | |
| Anacacho | — | |
| Austin Chalk | — |
10 TOPS · FIRST 8
STS A42-283-34645
3.9 KM · Welhausen Operating Company, LP · Section with this well →
| Sparta | 1,966 | -1,644 |
| Queen City | 2,226 | -1,904 |
| Reklaw | 3,427 | -3,105 |
| B/ Carrizo | 5,156 | -4,834 |
| Wales | 5,788 | -5,466 |
| Midway | 6,487 | -6,165 |
| Olmos | 8,996 | -8,674 |
| Yegua | — |
15 TOPS · FIRST 8
STS South C42-311-37653
4.3 KM · Caturus Energy, LLC · Section with this well →
| Wilcox | 4,000 | -3,721 |
| Navarro | 7,763 | -7,484 |
| Olmos | 9,149 | -8,870 |
| Anacacho | 11,660 | -11,381 |
| Austin Chalk | 11,737 | -11,458 |
| Eagle Ford | 11,839 | -11,560 |
| Escondido | — | |
| Frio | — |
10 TOPS · FIRST 8
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 1.07M
- bbl, last 12 reported months
- 3.72M
- bbl, all reported
- Oct 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000125343 | H-1 Injection | Active | 20,000 | 2,787 | 5,575–5,900 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 1,070,948 · prior 12 1,427,375(-25%)
TexNet catalog via USGS
Seismicity near this well
- 0
- M2+ events within 10 km, last 2 years
- —
- largest
A proximity count, not an attribution. How to read it →
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/31137004, documented in the API reference.