WELL · 42-165-38635 · DISTRICT 8
Sierra Blanca #1H
Gaines County · Seminole (San Andres) field · Horizontal
Sierra Blanca #1H (API 42-165-38635) is a plugged horizontal well in Gaines County, plugged December 28, 2022, last operated by Joint Resources Company.
The RRC has issued one drilling permit (amended twice), issued October 20, 2017, permitted to 6,000 ft.
Completion filings report 10 formation tops, including Yates, Seven Rivers, Queen, San Andres.
Its 2 leases have reported 3.83K barrels of oil and 9.61K mcf of gas since August 2018, last reporting in March 2023. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Fort Worth, TX · P-5 Y, filed Dec 4, 2025 · 241 permits on file · (817) 946-1158
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Joint Resources Company |
| Production reports | Joint Resources Companythrough Mar 2020 |
| Latest permit | Joint Resources CompanyOct 20, 2017 |
- 6,000
- total depth, ft
- 3
- permits on file
- Oct 20, 2017
- last permit issued
- Aug 25, 2018
- completed
- 3.83K
- cumulative oil, bbl
- 9.61K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2018 THROUGH Mar 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 25, 2018
- Shut in
- —
- Plugged
- Dec 28, 2022
Surface location
32.812267, -102.760800
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Gaines 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 |
|---|---|---|---|---|---|---|
| Sierra Blanca O-11-70839 | Bale (San Andres 5500) | Joint Resources Company | 1 | 3.83K | 9.61K | Aug 2018 – Mar 2023 |
| Sierra Blanca O-11-70830 | Seminole (San Andres) | Joint Resources Company | 1 | 0 | 0 | Aug 2018 – Mar 2019 |
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.
- 1Joint Resources CompanyAug 2018 → Mar 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 831832-97 | Drill | Joint Resources Company | Dec 20, 2018 | Oct 20, 2017 | Oct 25, 2017 | 6,000 |
| 831832-98 | Drill | Joint Resources Company | Jan 17, 2018 | Oct 20, 2017 | Oct 25, 2017 | 6,000 |
| 831832-99 | Drill | Joint Resources Company | Oct 10, 2017 | Oct 20, 2017 | Oct 25, 2017 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-70830 | — | — | — | — |
| — | — O-11-70839 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,448 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| YatesYATES - OVERPRESSURE, INERT GAS | 3,402 | 46 |
| Seven Rivers | 4,085 | -637 |
| Queen | 4,461 | -1,013 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD | 5,034 | -1,586 |
| Clear ForkCLEARFORK | — | — |
| Glorieta | — | — |
| Leonard | — | — |
| San Angelo | — | — |
| Spraberry | — | — |
| Wichita-AlbanyWICHITA ALBANY | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,832 | 11,815 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,052 | 12.25 | 1,585 S |
| 5.5 | 12,116 | 8.875 | 1,995 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 | Mar 6, 2019 | Dec 10, 2018 | Yes |
| 00 | Feb 26, 2019 | Dec 10, 2018 | 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 42-165-38635 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-165-38635 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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.
Seminole, NE (San Andres) Unit42-165-35196
2.9 KM · Voskamp Exploration, Inc. · Section with this well →
| Rustler | 2,220 | 1,206 |
| Yates | 3,405 | 21 |
| San Andres | 5,175 | -1,749 |
| San Andres | 5,459 | -2,033 |
Seminole, NE (San Andres) Unit42-165-35318
3.3 KM · Voskamp Exploration, Inc. · Section with this well →
| Rustler | 2,225 | 1,206 |
| Yates | 3,415 | 16 |
| San Andres | 5,200 | -1,769 |
Seminole San Andres Unit42-165-32045
3.5 KM · OXY USA Inc. · Section with this well →
| Rustler | 2,056 | 1,326 |
| Yates | 3,116 | 266 |
| Grayburg | 4,396 | -1,014 |
| San Andres | 4,682 | -1,300 |
Seminole San Andresunit42-165-32044
3.5 KM · OXY USA Inc. · Section with this well →
| Rustler | 2,102 | 1,307 |
| Yates | 3,170 | 239 |
| Grayburg | 4,403 | -994 |
Seminole San Andres Unit42-165-31935
3.5 KM · OXY USA Inc. · Section with this well →
| Tansill | 2,997 | 386 |
| Yates | 3,124 | 259 |
| San Andres | 4,683 | -1,300 |
Seminole San Andres Unit42-165-38973
3.6 KM · OXY USA Inc. · Section with this well →
| Tansill | 3,004 | 415 |
| Yates | 3,127 | 292 |
| Seven Rivers | 3,395 | 24 |
| Queen | 3,956 | -537 |
| Grayburg | 4,401 | -982 |
| San Andres | 4,687 | -1,268 |
| Clear Fork | — | |
| San Angelo | — |
10 TOPS · FIRST 8
Seminole San Andres Unit42-165-38971
3.6 KM · OXY USA Inc. · Section with this well →
| Yates | 3,106 | 274 |
| Seven Rivers | 3,377 | 3 |
| Queen | 3,949 | -569 |
| Grayburg | 4,406 | -1,026 |
| San Andres | 4,691 | -1,311 |
| Leonard | — | |
| San Angelo | — | |
| Spraberry | — |
11 TOPS · FIRST 8
Seminole San Andres Unit42-165-32030
3.7 KM · OXY USA Inc. · Section with this well →
| Tansill | 3,030 | 376 |
| Yates | 3,158 | 248 |
| Grayburg | 4,419 | -1,013 |
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/16538635, documented in the API reference.