WELL · 42-283-31788 · DISTRICT 1

Winslow O. H. #4

Y

LA Salle County · Sun T S H (Olmos) field · Producing  · Vertical

Winslow O. H. #4 (API 42-283-31788) is a well in La Salle County operated by Petrovybe Opco LLC, completed June 3, 2004 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 2003 and 2004, permitted to 8,000 ft.

It was permitted by Battlecat Operating Company, LLC and has since transferred to Petrovybe Opco LLC on the wellbore schedule.

Completion filings report 2 formation tops, including Escondido, Olmos.

No lease production has been reported under this well’s leases.

Operator of record

Petrovybe Opco LLC

Permitted by Battlecat Operating Company, LLC; the EWA schedule now lists a different operator.

Plano, TX · P-5 Y, filed Aug 4, 2025 · 6 permits on file · (346) 250-6615

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePetrovybe Opco LLC
Production reportsPetrovybe Opco LLCthrough Jan 2026
Latest permitBattlecat Operating Company, LLCMay 19, 2004

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

8,000
total depth, ft
2
permits on file
May 19, 2004
last permit issued
Jun 3, 2004
completed
0
cumulative oil, bbl
354K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2003 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 3, 2004
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

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
Winslow, O. H. G-1-197154Sun T S H (Olmos)Petrovybe Opco LLC10354KJun 2003 – Jul 2026

Gas, mcf lease total

Last 12 months 726 · prior 12 938(-23%)

0100200202420252026

Chain of custody

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

  1. 1Battlecat Operating Company, LLCSep 2003 → Jan 2005
  2. 2Escondido Resources GP, LLCFeb 2005 → Sep 2007
  3. 3Swift Energy Operating, LLCOct 2007 → Sep 2016
  4. 4Blue Marble Resources OP, LLCOct 2016 → Feb 2019
  5. 5Fletcher Operating, LLCMar 2019 → Nov 2025
  6. 6Petrovybe Opco LLCDec 2025 → Jan 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
545804-99RecompletionBattlecat Operating Company, LLCMay 17, 2004May 19, 2004—8,000
531927-99DrillBattlecat Operating Company, LLCMay 14, 2003May 14, 2003May 24, 20038,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-1-197154————

Formation tops

As filed on W-2/G-1. Subsea from 444 ft elevation.Download CSV →

FormationMD ftSubsea
Escondido5,871-5,427
Olmos7,366-6,922

Perforations

Perforated and open-hole intervals.

FromToType
7,6247,644Perforated
7,6447,663Perforated
7,6677,672Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,06512.25475 S
4.57,8827.8751,415 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
00Sep 13, 2005Jan 13, 2005—
00Oct 31, 2003Oct 16, 2003Yes
00Oct 21, 2003——

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). 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/28331788, documented in the API reference.