WELL · 42-391-32572 · DISTRICT 2

O'Connor, Thomas #8

N

Refugio County  · Vertical

O'Connor, Thomas #8 (API 42-391-32572) is a permitted well in Refugio County filed by Cambrian Management, Ltd.; no completion report is on file yet.

The RRC has issued 4 drilling permits (amended once) between 2004 and 2010, permitted to 9,000 ft.

Completion filings report one formation top, including Greta.

Its 4 leases have reported 38.6K barrels of oil and 92.5K mcf of gas since January 1993, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.

Operator of record

Cambrian Management, Ltd.

McCaulley, TX · P-5 Y, filed Apr 4, 2026 · 107 permits on file · (432) 664-7052

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsDorchester Operating Company LLCthrough Apr 2026
Latest permitCambrian Management, Ltd.Jun 16, 2010
9,000
total depth, ft
5
permits on file
Jun 16, 2010
last permit issued
—
completed
38.6K
cumulative oil, bbl
92.5K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 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 4 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
O'Connor, Thomas O-2-9447Greta (4400)Dorchester Operating Company LLC137.8K5.39KJul 2010 – Jul 2026
O'Conner, Thomas G-2-243789Greta (L- 5-A)Cambrian Management, Ltd.100Aug 2008 – Jul 2010
O'Connor, Thomas G-2-203530Greta, Deep (5660)Cambrian Management, Ltd.1085.7KJun 2004 – Aug 2008
Oconnor, Thomas O-2-4015Greta, Deep (5660)Cambrian Management, Ltd.27051.49KJan 1993 – Feb 2008

Oil, barrels lease total

Last 12 months 2,161 · prior 12 2,598(-17%)

0100200300202420252026

Chain of custody

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

  1. 1Primrose Operating CompanyApr 2004 → Jan 2007
  2. 2Cambrian Management LtdApr 2007 → Apr 2007
  3. 3Cambrian Management, Ltd.Oct 2007 → Oct 2007
  4. 4Acock/Anaqua Operating Co., LPNov 2010 → Nov 2020
  5. 5Dorchester Operating Company LLCDec 2020 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
696467-99RecompletionCambrian Management, Ltd.May 24, 2010Jun 16, 2010Jul 6, 20106,304
664725-99RecompletionCambrian Management, Ltd.Jun 17, 2008Jul 9, 2008Aug 11, 20086,304
600765-99RecompletionPrimrose Operating CompanyMay 17, 2005May 17, 2005—5,590
542776-98DrillPrimrose Operating CompanyMay 27, 2004Mar 3, 2004—9,000
542776-99DrillPrimrose Operating CompanyMar 3, 2004Mar 3, 2004Mar 9, 20049,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-203530————
—— G-2-243789————
—— O-2-4015————
—— O-2-9447————

Formation tops

As filed on W-2/G-1. Subsea from 58 ft elevation.Download CSV →

FormationMD ftSubsea
GretaGRETA (L-3)1,828-1,770
GretaGRETA (L-15)2,690-2,632
GretaGRETA (C-5)4,078-4,020
GretaGRETA 44004,320-4,262

Perforations

Perforated and open-hole intervals.

FromToType
2,0282,035Perforated
4,3154,318Perforated
5,6485,658Perforated
5,6525,658Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,35412.25484 S
5.56,2567.875950 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
00Feb 11, 2011Aug 13, 2010—
00Dec 3, 2010Sep 24, 2010Yes
00Oct 5, 2010Aug 13, 2010Yes
00Sep 15, 2010——
00Mar 13, 2009Dec 4, 2008Yes
00Jan 13, 2009——
00Jan 27, 2005Jun 17, 2004—
00Sep 30, 2004——
00Aug 25, 2004May 6, 2004Yes
00Jul 7, 2004——

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/39132572, documented in the API reference.