TEXAS · WELLS · WEBB COUNTY · PILONCILLO LEASE · API 42-479-41681 · DISTRICT 01

Piloncillo #D 21HD

Shut in

Webb County · Briscoe Ranch (Eagleford) field · Producing  · Horizontal

Piloncillo #D 21HD (API 42-479-41681) is a horizontal well in Webb County operated by Tbm Catarina LLC, completed September 25, 2014 and listed as producing on the RRC schedule, shut in May 1, 2026.

The RRC has issued one drilling permit, issued January 24, 2012, permitted to 8,479 ft.

It was permitted by Shell Western E&P and has since transferred to Tbm Catarina LLC on the wellbore schedule.

Completion filings report 3 formation tops, including San Miguel, Austin Chalk, Eagle Ford.

Its lease has reported 63.1K barrels of oil and 687K mcf of gas since January 2013, last reporting volume in April 2026.

Operator of record

TBM Catarina LLC

Permitted by Shell Western E&P; 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 scheduleTBM Catarina LLC
Production reportsTBM Catarina, LLCthrough Apr 2026
Latest permitShell Western E&PJan 24, 2012

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

8,479
total depth, ft
1
permits on file
Jan 24, 2012
last permit issued
Sep 25, 2014
completed
63.1K
cumulative oil, bbl
687K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2013 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 25, 2014
Shut in
May 1, 2026
Plugged
—

Operator's P-5 on the schedule: Active (A)

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Piloncillo G-1-270060Briscoe Ranch (Eagleford)TBM Catarina, LLC163.1K687KJan 2013 – Apr 2026

Gas, mcf lease total

Last 12 months 20,974 · prior 12 27,959(-25%)

01K2K3K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Shell Western E&PJun 2013 → Jul 2014
  2. 2SN Operating, LLCAug 2014 → May 2023
  3. 3TBM Catarina, LLCJun 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
731751-99DrillShell Western E&PJan 17, 2012Jan 24, 2012Mar 22, 201218,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Sep 25, 2014Piloncillo G-1-270060Briscoe Ranch (Eagleford)TBM Catarina LLCProducing · shut in May 1, 20268,479

Formation tops

As filed on W-2/G-1. Subsea from 632 ft elevation.Download CSV →

FormationMD ftSubsea
San Miguel7,072-6,440
Austin Chalk7,757-7,125
Austin Chalk7,758-7,126
Eagle FordUPPER EAGLE FORD8,464-7,832
Eagle FordUPPER EAGLE FORD8,476-7,844
Eagle FordUPPER EAGLEFORD8,476-7,844

Perforations

Perforated and open-hole intervals.

FromToType
9,91815,193Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6252,99512.251,111 S
9.6253,00012.251,111 S
5.515,3708.751,500 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Dec 9, 2014Oct 15, 2014—
00Jan 22, 2014Oct 2, 2013—
00Oct 8, 2013Jan 30, 2013Yes

Well logs

1 log loaded from the RRC's log index, the latest received Mar 15, 2016. Resistivity. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans San Miguel, Austin Chalk, Eagle FordTIFF3,045 to 15,350Mar 15, 2016run Oct 20, 20121.27

"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.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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/47941681, documented in the API reference.