TEXAS · WELLS · WEBB COUNTY · API 42-479-43659 · DISTRICT 01
Piloncillo #E 20HD
Webb County · Lorenzo (Austin Chalk) field · SWR-10-Well · Horizontal
- Fields on the latest permit · any of 2
- Briscoe Ranch (Eagleford) · Lorenzo (Austin Chalk)
- Not one formation; the well must be completed in one of them, and no target formation is stated.
Piloncillo #E 20HD (API 42-479-43659) is a horizontal well in Webb County operated by Tbm Catarina LLC, completed August 7, 2017 and listed as swr-10-well on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued January 6, 2017, permitted to 9,097 ft.
It was permitted by SN Operating, LLC and has since transferred to Tbm Catarina LLC on the wellbore schedule.
Completion filings report 13 formation tops, including Escondido, Olmos, San Miguel, Austin Chalk.
Its 2 leases have reported 73.8K barrels of oil and 1.07M mcf of gas since August 2017, last reporting volume in November 2025. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by SN Operating, LLC; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 3, 2026
- Permits on file
- 10
- Phone
- (817) 698-9901
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, LLCJan 6, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,097
- total depth, ft
- 2
- permits on file
- Jan 6, 2017
- last permit issued
- Aug 7, 2017
- completed
- 73.8K
- cumulative oil, bbl
- 1.07M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2017 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 7, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
28.168747, -99.539061 NAD27, as filed
28.169024, -99.539380 WGS84
Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Webb County.
Wells nearby
Every well with a location on file around this one, in any state, nearest first.
Loading the wells nearby…
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 |
|---|---|---|---|---|---|---|
| Piloncillo G-1-283878 | Briscoe Ranch (Eagleford) | TBM Catarina, LLC | 1 | 73.8K | 1.07M | Aug 2017 – Apr 2026 |
| Piloncillo G-1-283899 | Lorenzo (Austin Chalk) | TBM Catarina, LLC | 1 | 0 | 0 | Aug 2017 – — |
Gas, mcf lease total
Last 12 months 4,965 · prior 12 51,856(-90%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1SN Operating, LLCAug 2017 → May 2023
- 2TBM Catarina, LLCJun 2023 → Nov 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 821572-98 | Drill | SN Operating, LLC | Feb 7, 2018 | Jan 6, 2017 | Feb 22, 2017 | 10,500 |
| 821572-99 | Drill | SN Operating, LLC | Dec 22, 2016 | Jan 6, 2017 | — | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 7, 2017 | Piloncillo G-1-283899 | Lorenzo (Austin Chalk) | TBM Catarina LLC | SWR-10-Well · shut in Aug 1, 2017 | 9,097 |
| Aug 7, 2017 | Piloncillo G-1-283878 | Briscoe Ranch (Eagleford) | TBM Catarina LLC | Producing | 9,097 |
Formation tops
As filed on W-2/G-1. Subsea from 639 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Escondido | 4,839 | -4,200 |
| EscondidoESCONDITO - INJECTION/DISPOSAL; | 4,839 | -4,200 |
| Olmos | 6,473 | -5,834 |
| OlmosOLMOS - INJECTION/DISPOSAL | 6,473 | -5,834 |
| San Miguel | 7,562 | -6,923 |
| Austin Chalk | 8,904 | -8,265 |
| Eagle Ford | 9,225 | -8,586 |
| CatahoulaCATAHOULA/FRIO | — | — |
| CatahoulaCATAHOULA-FRIO - INJECTION/DISPO | — | — |
| Cook Mountain | — | — |
| EdwardsEDWARDS LIMESTONE | — | — |
| Jackson | — | — |
| JacksonJACKSON - INJECTION/DISPOSAL | — | — |
| Queen CityQUEEN CITY - INJECTION/DISPOSAL; | — | — |
| Sligo | — | — |
| Wilcox | — | — |
| WilcoxWILCOX - INJECTION/DISPOSAL | — | — |
| YeguaYEGUA - INJECTION/DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,467 | 9,479 | Perforated |
| 9,480 | 15,778 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,287 | 12.25 | 840 S |
| 5.5 | 15,877 | 8.75 | 2,715 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 14, 2018 | Mar 29, 2018 | Yes |
| 00 | May 9, 2018 | Mar 29, 2018 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 28, 2020. Gamma ray. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Gamma RaySpans Escondido, Olmos, San Miguel, Austin Chalk, Eagle Ford | TIFF | 0 to 15,905 | Apr 28, 2020 | 2.68 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-479-43659 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-43659 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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 neighbors, subsea-aligned so they line up regardless of surface terrain.
Open the cross-section →Piloncillo42-479-44024
3.0 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 |
| Catahoula | — | |
| Yegua | — | |
| Wilcox | — |
11 TOPS · FIRST 8
Piloncillo42-479-44025
3.0 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 | — | |
| Cook Mountain | — | |
| Catahoula | — | |
| Yegua | — |
10 TOPS · FIRST 8
Piloncillo42-479-44026
3.0 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 |
| Yegua | — | |
| Catahoula | — | |
| Cook Mountain | — | |
| Jackson | — |
10 TOPS · FIRST 8
Piloncillo42-479-44027
3.0 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 |
| Yegua | — | |
| Wilcox | — | |
| Queen City | — | |
| Jackson | — |
10 TOPS · FIRST 8
Piloncillo42-479-43853
3.0 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 |
| Catahoula | — | |
| Yegua | — | |
| Wilcox | — | |
| Queen City | — |
10 TOPS · FIRST 8
Piloncillo42-479-43854
3.0 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 |
| Jackson | — | |
| Cook Mountain | — | |
| Catahoula | — | |
| Yegua | — |
10 TOPS · FIRST 8
Piloncillo42-479-43855
3.0 KM · SN Operating, LLC · Section with this well →
| Escondido | 4,817 | -4,161 |
| Olmos | 6,397 | -5,741 |
| San Miguel | 7,530 | -6,874 |
| Austin Chalk | 8,818 | -8,162 |
| Yegua | — | |
| Cook Mountain | — | |
| Jackson | — | |
| Queen City | — |
10 TOPS · FIRST 8
Piloncillo42-479-43856
3.0 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 | — | |
| Wilcox | — | |
| Yegua | — | |
| Jackson | — |
10 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/47943659, documented in the API reference.