WELL · 42-479-43855 · DISTRICT 1
Piloncillo #E 31HY
Webb County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Piloncillo #E 31HY (API 42-479-43855) is a horizontal well in Webb County operated by Tbm Catarina LLC, completed April 28, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 18, 2017, permitted to 10,430 ft.
It was permitted by SN Operating, LLC and has since transferred to Tbm Catarina LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Escondido, Olmos, San Miguel, Austin Chalk.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by SN Operating, LLC; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Mar 4, 2026 · 10 permits on file · (866) 860-0105
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | TBM Catarina LLC |
| Production reports | TBM Catarina, LLCthrough Apr 2026 |
| Latest permit | SN Operating, LLCDec 18, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,430
- total depth, ft
- 1
- permits on file
- Dec 18, 2017
- last permit issued
- Apr 28, 2018
- completed
- 0
- cumulative oil, bbl
- 1.23M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 28, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
28.194663, -99.531072
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Webb County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Piloncillo G-1-285395 | Briscoe Ranch (Eagleford) | TBM Catarina, LLC | 1 | 0 | 1.23M | Apr 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 44,828 · prior 12 58,163(-23%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1SN Operating, LLCApr 2018 → May 2023
- 2TBM Catarina, LLCJun 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 833904-99 | Drill | SN Operating, LLC | Dec 5, 2017 | Dec 18, 2017 | Jan 31, 2018 | 10,430 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-285395 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 656 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| EscondidoESCONDITO - INJECTION/DISPOSAL; | 4,817 | -4,161 |
| OlmosOLMOS - INJECTION/DISPOSAL | 6,397 | -5,741 |
| San Miguel | 7,530 | -6,874 |
| Austin Chalk | 8,818 | -8,162 |
| CatahoulaCATAHOULA-FRIO - INJECTION/DISPO | — | — |
| Cook Mountain | — | — |
| JacksonJACKSON - INJECTION/DISPOSAL | — | — |
| Queen CityQUEEN CITY - INJECTION/DISPOSAL; | — | — |
| WilcoxWILCOX - INJECTION/DISPOSAL | — | — |
| YeguaYEGUA - INJECTION/DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,550 | 14,480 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,360 | 12.25 | 880 S |
| 5.5 | 14,576 | 8.75 | 2,720 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 7, 2019 | Oct 25, 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 42-479-43855 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-43855 → 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.
Piloncillo42-479-43854
0.0 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,825 | -4,169 |
| Olmos | 6,412 | -5,756 |
| San Miguel | 7,519 | -6,863 |
| Austin Chalk | 8,806 | -8,150 |
| Yegua | — | |
| Catahoula | — | |
| Cook Mountain | — | |
| Jackson | — |
10 TOPS · FIRST 8
Piloncillo42-479-43856
0.0 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,840 | -4,185 |
| Olmos | 6,424 | -5,769 |
| San Miguel | 7,551 | -6,896 |
| Austin Chalk | 8,837 | -8,182 |
| Catahoula | — | |
| Queen City | — | |
| Yegua | — | |
| Wilcox | — |
10 TOPS · FIRST 8
Piloncillo42-479-43853
0.0 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,817 | -3,961 |
| Olmos | 6,393 | -5,537 |
| San Miguel | 7,492 | -6,636 |
| Austin Chalk | 8,764 | -7,908 |
| Queen City | — | |
| Yegua | — | |
| Wilcox | — | |
| Cook Mountain | — |
10 TOPS · FIRST 8
Piloncillo42-479-44027
0.1 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,834 | -4,183 |
| Olmos | 6,431 | -5,780 |
| San Miguel | 7,555 | -6,904 |
| Eagle Ford | 9,207 | -8,556 |
| Jackson | — | |
| Queen City | — | |
| Wilcox | — | |
| Yegua | — |
10 TOPS · FIRST 8
Piloncillo42-479-44026
0.1 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,832 | -4,182 |
| Olmos | 6,421 | -5,771 |
| San Miguel | 7,552 | -6,902 |
| Austin Chalk | 8,835 | -8,185 |
| Queen City | — | |
| Wilcox | — | |
| Jackson | — | |
| Yegua | — |
10 TOPS · FIRST 8
Piloncillo42-479-44025
0.1 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,833 | -4,180 |
| Olmos | 6,418 | -5,765 |
| San Miguel | 7,526 | -6,873 |
| Austin Chalk | 8,819 | -8,166 |
| Jackson | — | |
| Queen City | — | |
| Wilcox | — | |
| Yegua | — |
10 TOPS · FIRST 8
Piloncillo42-479-44024
0.1 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,817 | -4,159 |
| Olmos | 6,387 | -5,729 |
| San Miguel | 7,525 | -6,867 |
| Austin Chalk | 8,796 | -8,138 |
| Eagle Ford | 9,154 | -8,496 |
| Jackson | — | |
| Cook Mountain | — | |
| Yegua | — |
11 TOPS · FIRST 8
Piloncillo42-479-43744
1.2 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,884 | -4,253 |
| Olmos | 6,463 | -5,832 |
| San Miguel | 7,583 | -6,952 |
| Austin Chalk | 8,893 | -8,262 |
| Eagle Ford | 9,229 | -8,598 |
| Catahoula | — | |
| Yegua | — | |
| Wilcox | — |
11 TOPS · FIRST 8
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/47943855, documented in the API reference.