WELL · 42-461-35759 · DISTRICT 7

Cathy #5

N

Upton County · Wildcat field  · Vertical

Cathy #5 (API 42-461-35759) is a permitted well in Upton County filed by Windsor Energy Group, L.L.C.; no completion report is on file yet.

The RRC has issued one drilling permit (amended once), issued April 4, 2008, permitted to 10,107 ft.

Completion filings report one formation top, including Spraberry.

Its 2 leases have reported 79.3K barrels of oil and 247K mcf of gas since September 2008, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.

Operator of record

Windsor Energy Group L.L.C.

Oklahoma City, OK · P-5 Y, filed Dec 2, 2016 · 159 permits on file · (855) 247-5920

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleWindsor Energy Group L.L.C.
Production reportsSaxum Opco, LLCthrough Apr 2026
Latest permitWindsor Energy Group, L.L.C.Feb 4, 2009

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

10,107
total depth, ft
2
permits on file
Feb 4, 2009
last permit issued
—
completed
79.3K
cumulative oil, bbl
247K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
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 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cathy O-9-16676Spraberry (Trend Area)Saxum Opco, LLC279.3K247KSep 2008 – Jul 2026
Cathy O-9-16896WildcatWindsor Energy Group, L.L.C.100Oct 2008 – Oct 2013

Oil, barrels lease total

Last 12 months 3,554 · prior 12 3,540(+0%)

0200400600202420252026

Gas, mcf lease total

Last 12 months 11,169 · prior 12 10,397(+7%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Windsor Energy Group, L.L.C.Sep 2008 → Feb 2010
  2. 2Windsor Permian LLCMar 2010 → Jun 2012
  3. 3Diamondback E&P LLCJul 2012 → May 2021
  4. 4Zarvona Energy LLCJun 2021 → Sep 2025
  5. 5Saxum Opco, LLCOct 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
657938-98DrillWindsor Energy Group, L.L.C.Jan 22, 2009Feb 4, 2009Sep 22, 20088,966
657938-99DrillWindsor Energy Group, L.L.C.Mar 24, 2008Apr 4, 2008Sep 22, 200810,107

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-16676————
—— O-9-16896————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Spraberry6,868

Perforations

Perforated and open-hole intervals.

FromToType
7,2158,830Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62550011260 S
5.58,9667.875664 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
00Apr 14, 2010Sep 18, 2009Yes
00Nov 4, 2009——
00May 22, 2009Mar 31, 2009Yes
00May 6, 2009——

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/46135759, documented in the API reference.