WELL · 42-507-33421 · DISTRICT 1
Cenizo A #133H
Zavala County · Briscoe Ranch (Eagleford) field · Horizontal
Cenizo A #133H (API 42-507-33421) is a horizontal well in Zavala County operated by Trinity Operating (Usg) LLC, completed April 26, 2021.
The RRC has issued one drilling permit, issued August 6, 2020, permitted to 8,000 ft.
Completion filings report 5 formation tops, including Escondido, Olmos, San Miguel, Austin Chalk.
Its 2 leases have reported 553K barrels of oil and 3.83M mcf of gas since June 2020, last reporting in July 2026. The leases carry 19 wells, so these are lease totals, not this well alone.
Operator of record
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 | Trinity Operating (Usg), LLCAug 6, 2020 |
- 8,000
- total depth, ft
- 1
- permits on file
- Aug 6, 2020
- last permit issued
- Apr 26, 2021
- completed
- 553K
- cumulative oil, bbl
- 3.83M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 26, 2021
- Shut in
- —
- Plugged
- —
Surface location
28.675896, -99.455469
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Zavala 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 19 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cenizo A G-1-297054 | Briscoe Ranch (Eagleford) | Trinity Operating (Usg), LLC | 1 | 0 | 714K | Apr 2021 – Jul 2026 |
| Cenizo A O-1-20302 | Briscoe Ranch (Eagleford) | Trinity Operating (Usg), LLC | 18 | 553K | 3.11M | Jun 2020 – Jul 2026 |
Gas, mcf lease total
Last 12 months 897,294 · prior 12 1,305,910(-31%)
Oil, barrels lease total
Last 12 months 70,171 · prior 12 137,999(-49%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Trinity Operating (Usg), LLCApr 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 864413-99 | Drill | Trinity Operating (Usg), LLC | Jul 26, 2020 | Aug 6, 2020 | Jan 4, 2021 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-297054 | — | — | — | — |
| — | — O-1-20302 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 619 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| EscondidoESCONDIDO - DISPOSAL | 2,200 | -1,581 |
| Olmos | 4,641 | -4,022 |
| San Miguel | 5,469 | -4,850 |
| Austin ChalkAUSTIN | 6,330 | -5,711 |
| Eagle FordEAGLEFORD | 6,866 | -6,247 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,489 | 18,532 | Perforated |
| 7,489 | 18,549 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,471 | 12.25 | 1,030 S |
| 5.5 | 18,050 | 8.75 | 3,405 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 6, 2024 | Apr 26, 2024 | Yes |
| 00 | Jul 20, 2021 | May 11, 2021 | 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 42-507-33421 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-33421 → 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.
Cenizo A42-507-33420
0.0 KM · Trinity Operating (Usg), LLC · Section with this well →
| Escondido | 3,516 | -2,897 |
| Olmos | 4,674 | -4,055 |
| San Miguel | 5,431 | -4,812 |
| Eagle Ford | 6,879 | -6,260 |
Cenizo A42-507-33419
0.0 KM · Trinity Operating (Usg), LLC · Section with this well →
| Escondido | 3,883 | -3,263 |
| Olmos | 4,575 | -3,955 |
| San Miguel | 5,469 | -4,849 |
| Eagle Ford | 6,879 | -6,259 |
Cenizo A42-507-33418
0.8 KM · Trinity Operating (Usg), LLC · Section with this well →
| Escondido | 3,640 | -3,021 |
| Olmos | 4,749 | -4,130 |
| San Miguel | 5,787 | -5,168 |
| Anacacho | 6,187 | -5,568 |
| Austin Chalk | 6,543 | -5,924 |
| Eagle Ford | 7,045 | -6,426 |
| Eagle Ford | 7,163 | -6,544 |
| Escondido | — |
Cenizo A42-507-33417
0.8 KM · Trinity Operating (Usg), LLC · Section with this well →
| Escondido | 3,669 | -3,072 |
| Olmos | 4,744 | -4,147 |
| Anacacho | 6,158 | -5,561 |
| Austin Chalk | 6,532 | -5,935 |
| Eagle Ford | 7,027 | -6,430 |
| Eagle Ford | 7,144 | -6,547 |
Cenizo A42-507-33416
0.8 KM · Trinity Operating (Usg), LLC · Section with this well →
| Midway | 3,189 | -2,591 |
| Escondido | 3,647 | -3,049 |
| Olmos | 4,712 | -4,114 |
| Sam Miguel | 5,751 | -5,153 |
| San Miguel | 5,751 | -5,153 |
| Anacacho | 6,143 | -5,545 |
| Austin Chalk | 6,507 | -5,909 |
| Eagle Ford | 7,010 | -6,412 |
9 TOPS · FIRST 8
Cenizo A42-507-33443
1.2 KM · Trinity Operating (Usg), LLC · Section with this well →
| Escondido | 3,465 | -2,836 |
| Olmos | 4,558 | -3,929 |
| San Miguel | 5,444 | -4,815 |
| Anacacho | 5,902 | -5,273 |
| Austin Chalk | 6,279 | -5,650 |
| Eagle Ford | 6,828 | -6,199 |
| Eagle Ford | 6,976 | -6,347 |
| Midway | — |
Cenizo A42-507-33444
1.2 KM · Trinity Operating (Usg), LLC · Section with this well →
| Escondido | 3,465 | -2,836 |
| Olmos | 4,558 | -3,929 |
| San Miguel | 5,444 | -4,815 |
| Anacacho | 5,902 | -5,273 |
| Austin Chalk | 6,279 | -5,650 |
| Eagle Ford | 6,828 | -6,199 |
| Eagle Ford | 6,976 | -6,347 |
Cenizo A42-507-33446
1.2 KM · Trinity Operating (Usg), LLC · Section with this well →
| Escondido | 3,467 | -2,838 |
| Olmos | 4,558 | -3,929 |
| San Miguel | 5,423 | -4,794 |
| Anacacho | 5,892 | -5,263 |
| Austin Chalk | 6,292 | -5,663 |
| Eagle Ford | 6,824 | -6,195 |
| Eagle Ford | 6,969 | -6,340 |
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/50733421, documented in the API reference.