WELL · 42-461-38583 · DISTRICT 7

TXL 21 #3

N

Upton County · Spraberry (Trend Area) field  · Vertical

Txl 21 #3 (API 42-461-38583) is a well in Upton County operated by Winn Operating LLC, completed June 26, 2013.

The RRC has issued one drilling permit, issued February 27, 2013, permitted to 12,000 ft.

It was permitted by Cog Operating LLC and has since transferred to Winn Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Spraberry, Wolfcamp, Bend.

Its 2 leases have reported 368K barrels of oil and 1.86M mcf of gas since May 2012, last reporting in July 2026. The leases carry 10 wells, so these are lease totals, not this well alone.

Operator of record

Winn Operating LLC

Permitted by COG Operating LLC; the EWA schedule now lists a different operator.

Based in
Kilgore, TX
P-5 status
Active (A)
P-5 last filed
Jan 23, 2026
Permits on file
1
Phone
(903) 984-3443

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleWinn Operating LLC
Production reportsSM Energy Companythrough Apr 2026
Latest permitCOG Operating LLCFeb 27, 2013

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

12,000
total depth, ft
1
permits on file
Feb 27, 2013
last permit issued
Jun 26, 2013
completed
368K
cumulative oil, bbl
1.86M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2012 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jun 26, 2013
Shut in
—
Plugged
—

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 2 leases this well is completed on; they carry 10 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
TXL '21' O-9-17975Spraberry (Trend Area)Winn Operating, LLC6334K1.67MMay 2012 – Jul 2026
TXL '21' A O-9-21016Spraberry (Trend Area)SM Energy Company434.4K194KAug 2020 – Jul 2026

Gas, mcf lease total

Last 12 months 29,437 · prior 12 65,295(-55%)

05K10K202420252026

Oil, barrels lease total

Last 12 months 3,305 · prior 12 9,044(-63%)

05001K1.5K202420252026

Chain of custody

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

  1. 1COG Operating LLCMay 2012 → May 2025
  2. 2SM Energy CompanyAug 2020 → Dec 2025
  3. 3Winn Operating, LLCJun 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
755793-99DrillCOG Operating LLCJan 29, 2013Feb 27, 2013Apr 24, 201312,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-17975————
—— O-9-21016————

Formation tops

As filed on W-2/G-1. Subsea from 2,845 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,693-4,848
Wolfcamp8,980-6,135
Bend10,331-7,486

Perforations

Perforated and open-hole intervals.

FromToType
7,77010,750Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.62551712.25400 S
5.510,8708.8751,050 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Aug 11, 2020Nov 22, 2013Yes
00Mar 31, 2014Nov 22, 2013Yes

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.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/46138583, documented in the API reference.