WELL · 42-391-01167 · DISTRICT 2

O Connor Thomas -C- #9

N

Refugio County · Tom Oconnor (5900 Sand) field  · Vertical

O Connor Thomas -C- #9 (API 42-391-01167) is a well in Refugio County operated by Hilcorp Energy Company, completed May 29, 1997.

The RRC has issued 5 drilling permits between 1983 and 2018, permitted to 5,925 ft.

Completion filings report 7 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.

Its 6 leases have reported 7.04M barrels of oil and 5.11M mcf of gas since January 1993, last reporting in July 2026. The leases carry 205 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,453 permits on file · (713) 209-2411

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanyFeb 8, 2018
5,925
total depth, ft
5
permits on file
Feb 8, 2018
last permit issued
May 29, 1997
completed
7.04M
cumulative oil, bbl
5.11M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 29, 1997
Shut in
—
Plugged
—

Surface location

28.363715, -97.157097

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Refugio County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 6 leases this well is completed on; they carry 205 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Oconnor, Thomas, -C- O-2-2566Tom Oconnor (4500 Greta Mass.)Hilcorp Energy Company18646K278KJan 1993 – Jul 2026
Oconnor, Thomas, -C- O-2-2587Tom Oconnor (5500 Sand)Hilcorp Energy Company512.22M2.1MJan 1993 – Jul 2026
O'Connor, Thomas -C- O-2-2876Tom Oconnor (5900 Sand)Hilcorp Energy Company592.99M2.17MJan 1993 – Jul 2026
Tom O'CONNOR(5600 Foot Sand)unit O-2-8950Tom O'Connor (5600 Foot Sand)Hilcorp Energy Company591.13M357KMar 2005 – Jul 2026
O'Connor, Thomas 'C' O-2-8272Tom Oconnor (5625 Sand)Hilcorp Energy Company845.4K200KApr 1997 – Aug 2006
Tom O'Connor (5600 Ft. Sd.) Unit O-2-8873Tom O'Connor (5600 Foot Sand)Hilcorp Energy Company1000Jun 2004 – Sep 2004

Oil, barrels lease total

Last 12 months 24,975 · prior 12 29,740(-16%)

02K4K202420252026

Gas, mcf lease total

Last 12 months 714 · prior 12 1,522(-53%)

01K2K202420252026

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
836051-99RecompletionHilcorp Energy CompanyFeb 7, 2018Feb 8, 2018Feb 22, 20185,925
521056-99RecompletionHilcorp Energy CompanyJun 17, 2002Jun 26, 2002Jun 20, 20025,925
462012-99RecompletionQuintana Pet. Corp.May 6, 1997Jun 26, 1997May 23, 19975,925
357393-99RecompletionQuintana Pet. Corp.Mar 24, 1989Apr 21, 1989—5,925
188312-99RecompletionQuintana Pet. Corp.Mar 4, 1983Mar 4, 1983—5,925

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-2566————
—— O-2-2587————
—— O-2-2876————
—— O-2-2876————
—— O-2-8272————
—— O-2-8272————
—— O-2-8873————
—— O-2-8950————

Formation tops

As filed on W-2/G-1. Subsea from 54 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,446
LagartoLARGARTO2,750-2,696
Oakville2,750-2,696
CatahoulaCATAHOULA (MIOCENE)3,300-3,246
Oakville3,300-3,246
Catahoula3,565-3,511
AnahuacANAHUAC (MIOCENE)4,100-4,046
CatahoulaCATAHOULA (MIOCENE)4,100-4,046
Frio4,329-4,275
AnahuacANAHUAC (MIOCENE)4,365-4,311
FrioFRIO-GRETA (OLIGOCENE)4,365-4,311
FrioFRIO-GRETA (OLIGOCEN)4,785-4,731
FrioMIDDLE FRIO (SINTON)5,000-4,946
FrioMIDDLE FRIO (SINTON)5,400-5,346
FrioLOWER FRIO (OLIGOCENE)5,880-5,826
FrioLOWER FRIO (OLIGOCENE)5,925-5,871
JacksonJACKSON/YEGUA——
NO Change——

Perforations

Perforated and open-hole intervals.

FromToType
4,3944,400Perforated
5,5295,535Perforated
5,5575,565Perforated
5,5575,575Perforated
5,8065,812Perforated
5,8245,834Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,03516250 S
1.55,751——
55,9238.75500 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
00Aug 7, 2018May 11, 2018—
00Apr 20, 2010Aug 19, 2009—
00Mar 23, 2005Jul 3, 2002Yes
00Oct 13, 2004Jul 3, 2002Yes
00Aug 16, 2004Jul 3, 2002Yes
00Aug 19, 2002Jul 3, 2002Yes
00Jul 11, 2002——
00Dec 11, 1997Jul 14, 1997Yes
00Nov 17, 1997Apr 24, 1990Yes
00Jun 8, 1990Apr 24, 1990Yes
00May 9, 1990——
00Jun 12, 1985May 17, 1985—
00May 25, 1985Apr 1, 1983—
00Jan 12, 1984Apr 1, 1983—
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.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Tom O'Connor (5800 Sand) Field U42-391-31613

0.2 KM · Quintana Pet. Corp. · Section with this well →

Surface, Sand & Clay1,500-1,446
Lagarto2,750-2,696
Oakville3,300-3,246
Catahoula3,560-3,506
Catahoula4,100-4,046
Frio4,325-4,271
Anahuac4,365-4,311
Frio4,785-4,731

11 TOPS · FIRST 8

Tom O'Connor (4150 Ft. Sd.) Unit42-391-01171

0.3 KM · Hilcorp Energy Company · Section with this well →

Lagarto1,500-1,447
Oakville2,750-2,697
Catahoula3,300-3,247
Catahoula3,559-3,506
Anahuac4,100-4,047
Frio4,332-4,279
Frio4,365-4,312
Frio5,000-4,947

10 TOPS · FIRST 8

Tom Oconnor (5800 SD) Fld. Unit42-391-31896

0.6 KM · Quintana Pet. Corp. · Section with this well →

Lagarto1,500-1,445
Oakville2,750-2,695
Catahoula3,300-3,245
Anahuac4,100-4,045
Frio4,365-4,310
Frio5,000-4,945
Frio5,880-5,825
NO Change—

Tom OCONNOR(5800 Sand)field Unit42-391-01514

0.6 KM · Quintana Pet. Corp. · Section with this well →

Surface Sand Clay1,500-1,449
Lagarto1,500-1,449
Oakville2,750-2,699
Catahoula3,300-3,249
Catahoula3,300-3,249
Anahuac4,100-4,049
Greta4,362-4,311
Frio4,365-4,314

15 TOPS · FIRST 8

Tom O'Connor (5800 SD) Fld. Unit42-391-01520

0.6 KM · Quintana Pet. Corp. · Section with this well →

Lagarto1,500-1,450
Oakville2,750-2,700
Catahoula3,300-3,250
Catahoula3,300-3,250
Anahuac4,100-4,050
Anahuac4,100-4,050
Frio4,365-4,315
Frio4,365-4,315

13 TOPS · FIRST 8

Thomas O'Connor 'C'42-391-01147

0.6 KM · Quintana Pet. Corp. · Section with this well →

Lagarto1,500-1,447
Oakville2,750-2,697
Catahoula3,300-3,247
Catahoula3,538-3,485
Anahuac4,100-4,047
Frio4,321-4,268
Frio4,365-4,312
Anahuac4,365-4,312

13 TOPS · FIRST 8

Tom O'Connor "A"42-391-01515

0.8 KM · Quintana Pet. Corp. · Section with this well →

Lagarto1,500-1,447
Oakville2,750-2,697
Catahoula3,300-3,247
Catahoula3,300-3,247
Catahoula3,586-3,533
Anahuac4,100-4,047
Anahuac4,100-4,047
Frio4,365-4,312

17 TOPS · FIRST 8

Thomas O'Connor 'C'42-391-01158

0.8 KM · Hilcorp Energy Company · Section with this well →

Oakville2,900-2,848
Catahoula3,548-3,496
Anahuac4,100-4,048
Greta4,300-4,248
Frio4,330-4,278
Frio5,000-4,948
Frio5,800-5,748
Jackson—

9 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
315K
bbl, all reported
Nov 2018
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000100938H-1 InjectionCanceled Nov 15, 20195,0002,0254,050–4,200

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 0

0120172018

TexNet catalog via USGS

Seismicity near this well

0
M2+ events within 10 km, last 2 years
—
largest

A proximity count, not an attribution. How to read it →

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.

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