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TEXAS · WELLS · REFUGIO COUNTY · API 42-391-01523 · DISTRICT 02

O Connor Thomas A #66

Shut in

Refugio County · Tom Oconnor (5440) field · Shut In  · Vertical

O Connor Thomas A #66 (API 42-391-01523) is a well in Refugio County operated by Hilcorp Energy Company, completed December 21, 2001 and listed as shut in on the RRC schedule, shut in June 1, 2023.

The RRC has issued 2 drilling permits (amended once) between 1995 and 2001, permitted to 5,932 ft.

Completion filings report 6 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.

Its 3 leases have reported 23.5M barrels of oil and 15.8M mcf of gas since January 1993, last reporting in July 2026. The leases carry 632 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Mar 27, 2026
Permits on file
3,454
Phone
(713) 209-2400
Watch this operatorWatch Refugio County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanyNov 28, 2001
5,932
total depth, ft
3
permits on file
Nov 28, 2001
last permit issued
Dec 21, 2001
completed
23.5M
cumulative oil, bbl
15.8M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 21, 2001
Shut in
Jun 1, 2023
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 3 leases this well is completed on; they carry 632 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Oconnor, Thomas -A- O-2-1542Tom OconnorHilcorp Energy Company36650K756KJan 1993 – Jul 2026
Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy Company59422.8M14.9MJan 1993 – Jul 2026
O'Connor, Thomas "A" O-2-8686Tom Oconnor (5440)Hilcorp Energy Company255K146KDec 2001 – Jul 2026

Oil, barrels lease total

Last 12 months 728,817 · prior 12 562,914(+29%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 118,367 · prior 12 85,401(+39%)

020K40K60K202420252026

Chain of custody

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

  1. 1Quintana Pet. Corp.Jan 1993 → Nov 2000
  2. 2Hilcorp Energy CompanyDec 2000 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
515582-98RecompletionHilcorp Energy CompanyJan 4, 2002Nov 28, 2001Nov 29, 20015,932
515582-99RecompletionHilcorp Energy CompanyNov 26, 2001Nov 28, 2001—5,932
432011-99RecompletionQuintana Pet. Corp.Jan 19, 1995Jan 26, 1995Apr 27, 19955,932

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 21, 2001O Connor Thomas A O-2-8686Tom Oconnor (5440)Hilcorp Energy CompanyShut In · shut in Jun 1, 20235,932
May 3, 1995Oconnor Thomas -A- O-2-1542Tom OconnorHilcorp Energy CompanyNot on Schedule—
May 3, 1995Oconnor Thomas -A- O-2-1542Tom OconnorHilcorp Energy CompanyNot on Schedule—
—Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy CompanyNot on Schedule—
—Oconnor Thomas -A- O-2-5012Tom Oconnor (5800)Hilcorp Energy CompanyNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 50 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,450
Oakville2,750-2,700
CatahoulaCATAHOULA (MIOCENE)3,300-3,250
CatahoulaCATAHOULA(MIOCENE)3,300-3,250
AnahuacANAHUAC (MIOCENE)4,100-4,050
AnahuacANAHUAC(MIOCENE)4,100-4,050
FrioFRIO-GRETA (OLIGOCENE)4,365-4,315
FrioFRIO-GRETA(OLIGOCENE)4,365-4,315
FrioMIDDLE FRIO (SINTON)5,000-4,950
FrioLOWER FRIO (OLIGOCENE)5,880-5,830
NO Change——

Perforations

Perforated and open-hole intervals.

FromToType
5,5515,557Perforated
5,7885,804Perforated
—5,867Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,25016350 S
55,9308.75500 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
00May 2, 2002Jan 23, 2002Yes
00Feb 21, 2002——
00Mar 17, 1997Jun 3, 1996—
00Mar 14, 1997——
00Jul 30, 1996Jun 3, 1996—
00Jan 12, 1984——

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/39101523, documented in the API reference.