WELL · 42-427-34619 · DISTRICT 4
LA Brisa Ranch Partners 91 #M 9
Starr County · Boyle field · Producing · Vertical
La Brisa Ranch Partners 91 #M 9 (API 42-427-34619) is a well in Starr County operated by Trap Rock Oil Ltd., completed October 10, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 5, 2012, permitted to 4,700 ft.
Completion filings report one formation top, including Vicksburg.
Its lease has reported 230K barrels of oil and 1.03M mcf of gas since January 1993, last reporting in July 2026. The lease carries 12 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Sep 4, 2025 · 41 permits on file · (617) 686-0238
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Trap Rock Oil Ltd. |
| Production reports | Trap Rock Oil, Ltd.through Mar 2026 |
| Latest permit | Trap Rock Oil, Ltd.Jun 5, 2012 |
- 4,700
- total depth, ft
- 1
- permits on file
- Jun 5, 2012
- last permit issued
- Oct 10, 2012
- completed
- 230K
- cumulative oil, bbl
- 1.03M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 10, 2012
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 lease this well is completed on; they carry 12 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| LA Brisa Ranch Partners 91 O-4-315 | Boyle | Trap Rock Oil, Ltd. | 12 | 230K | 1.03M | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 28,626 · prior 12 31,031(-8%)
Oil, barrels lease total
Last 12 months 3,043 · prior 12 3,901(-22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Trap Rock Oil, Ltd.Nov 2009 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 739758-99 | Drill | Trap Rock Oil, Ltd. | May 2, 2012 | Jun 5, 2012 | Jun 26, 2012 | 4,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-315 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 359 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| VicksburgVICKSBURG L1 | 4,348 | -3,989 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,873 | 3,876 | Perforated |
| 3,887 | 3,890 | Perforated |
| 3,899 | 3,912 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 475 | 12.25 | 245 S |
| 4.5 | 4,338 | 7.875 | 700 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 4, 2013 | Feb 20, 2013 | 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 42-427-34619 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-34619 → 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/42734619, documented in the API reference.