WELL · 42-479-43637 · DISTRICT 1
Spohn Ranch #12H
Webb County · Ammann (Buda) field · SWR-10-Well · Horizontal
Spohn Ranch #12H (API 42-479-43637) is a horizontal well in Webb County operated by Trinity Operating (Usg) LLC, completed May 22, 2017 and listed as swr-10-well on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued December 13, 2016, permitted to 12,000 ft.
It was permitted by Escondido Resources II, LLC and has since transferred to Trinity Operating (Usg) LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Wilcox, Escondido, Olmos, Eagle Ford.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Escondido Resources II, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Nov 4, 2025 · 392 permits on file · (888) 510-9581
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Trinity Operating (Usg) LLC |
| Production reports | Trinity Operating (Usg), LLCthrough Apr 2026 |
| Latest permit | Escondido Resources II, LLCDec 13, 2016 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 2
- permits on file
- Dec 13, 2016
- last permit issued
- May 22, 2017
- completed
- 0
- cumulative oil, bbl
- 4.56M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2017 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 22, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 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 |
|---|---|---|---|---|---|---|
| Spohn Ranch G-1-282191 | Briscoe Ranch (Eagleford) | Trinity Operating (Usg), LLC | 1 | 0 | 4.56M | Jan 2017 – Jul 2026 |
| Spohn Ranch G-1-282801 | Ammann (Buda) | Trinity Operating (Usg), LLC | 1 | 0 | 0 | May 2017 – Jul 2026 |
Gas, mcf lease total
Last 12 months 138,541 · prior 12 213,472(-35%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Escondido Resources Oper Co, LLCMay 2017 → May 2024
- 2Trinity Operating (Usg), LLCJun 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 821074-98 | Drill | Escondido Resources II, LLC | Apr 5, 2017 | Dec 13, 2016 | Dec 29, 2016 | 12,000 |
| 821074-99 | Drill | Escondido Resources Oper Co, LLC | Dec 7, 2016 | Dec 13, 2016 | — | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-282191 | — | — | — | — |
| — | — G-1-282801 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 611 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| WilcoxWILCOX - INJECTION/DISPOSAL | 3,583 | -2,972 |
| EscondidoESCONDITO - INJECTION/DISPOSAL; | 4,572 | -3,961 |
| OlmosOLMOS - INJECTION/DISPOSAL | 6,602 | -5,991 |
| Eagle FordEAGLE FORD SHALE | 9,598 | -8,987 |
| CatahoulaCATAHOULA-FRIO - INJECTION/DISPO | — | — |
| Cook Mountain | — | — |
| EdwardsEDWARDS LIMESTONE - H2S | — | — |
| JacksonJACKSON - INJECTION/DISPOSAL | — | — |
| Queen CityQUEEN CITY - INJECTION/DISPOSAL; | — | — |
| YeguaYEGUA - INJECTION/DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,869 | 19,277 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,125 | 12.25 | 685 S |
| 5.5 | 19,845 | 8.75 | 4,990 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 | Dec 5, 2019 | Sep 12, 2019 | Yes |
| 00 | Nov 30, 2017 | Sep 7, 2017 | — |
| 00 | Sep 19, 2017 | Jul 12, 2017 | — |
| 00 | Jun 15, 2017 | May 17, 2017 | 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 42-479-43637 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-43637 → 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/47943637, documented in the API reference.