WELL · 42-391-01539 · DISTRICT 2

Tom Oconnor (5800 SD) Fld. Unit #Q023 E

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Refugio County · Tom Oconnor (5800) field  · Vertical

Tom Oconnor (5800 SD) Fld. Unit #Q023 E (API 42-391-01539) is a permitted well in Refugio County filed by Hilcorp Energy Company; no completion report is on file yet.

The RRC has issued 3 drilling permits between 2003 and 2023, permitted to 5,891 ft.

Completion filings report 5 formation tops, including Catahoula, Greta, Frio, Jackson.

Its 3 leases have reported 22.8M barrels of oil and 14.9M mcf of gas since January 1993, last reporting in July 2026. The leases carry 596 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 CompanyJul 14, 2023
5,891
total depth, ft
3
permits on file
Jul 14, 2023
last permit issued
—
completed
22.8M
cumulative oil, bbl
14.9M
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

28.358794, -97.141047

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 3 leases this well is completed on; they carry 596 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy Company59422.8M14.9MJan 1993 – Jul 2026
Thomas O'Connor "A" O-2-10014Tom Oconnor (5250)Hilcorp Energy Company11140May 2011 – Jul 2026
O'Connor, Thomas "A" G-2-196996Tom Oconnor (5300, East)Hilcorp Energy Company1020.1KJul 2002 – May 2011

Oil, barrels lease total

Last 12 months 673,200 · prior 12 524,408(+28%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,526 · prior 12 83,712(+40%)

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
891801-99RecompletionHilcorp Energy CompanyJul 3, 2023Jul 14, 2023Jun 9, 20235,891
711308-99RecompletionHilcorp Energy CompanyMar 2, 2011Mar 9, 2011Mar 17, 20115,891
529008-99RecompletionHilcorp Energy CompanyFeb 28, 2003Mar 5, 2003Jul 8, 20025,891

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-196996————
—— O-2-5280————
—— O-2-5280————
—— O-2-10014————

Formation tops

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

FormationMD ftSubsea
Catahoula3,650-3,600
Greta4,362-4,312
Frio4,402-4,352
Frio5,068-5,018
Frio5,891-5,841
JacksonJACKSON/YEGUA——
NO Change——

Perforations

Perforated and open-hole intervals.

FromToType
5,2415,250Perforated
5,2965,300Perforated
5,3115,315Perforated
5,3225,330Perforated
5,8035,824Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.75503—100 S
75,8019.875400 S
75,801—400 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
00Nov 15, 2023Aug 24, 2023—
00Jan 11, 2021Dec 15, 2020—
00Jul 6, 2012Jun 29, 2011—
00Dec 10, 2003Jul 3, 2003Yes
00Oct 9, 2003——
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 Oconnor (5800 SD) Fld. Unit42-391-01551

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

Lagarto1,500-1,452
Oakville2,750-2,702
Catahoula3,300-3,252
Catahoula3,655-3,607
Anahuac4,100-4,052
Catahoula4,100-4,052
Anahuac4,230-4,182
Anahuac4,365-4,317

18 TOPS · FIRST 8

Tom O'Connor (5800 SD) FLD Unit42-391-01552

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

Anahuac2,252-2,197
Anahuac2,252-2,197
Catahoula3,609-3,554
Frio4,265-4,210

Tom O'Connor (5800 SD) FLD Unit42-391-01553

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

Catahoula3,672-3,623
Catahoula3,672-3,623
Frio4,419-4,370
Frio4,419-4,370
M. Frio Sinton5,030-4,981
Jackson—
Jackson—
NO Change—

O'Connor, Thomas 'A'42-391-01546

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

Lagarto1,500-1,452
Oakville2,750-2,702
Catahoula3,300-3,252
Catahoula3,676-3,628
Anahuac4,100-4,052
Frio4,365-4,317
Frio4,452-4,404
Frio5,000-4,952

10 TOPS · FIRST 8

Oconnor, Thomas -C-42-391-01564

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

Oakville2,750-2,694
Catahoula3,300-3,244
Frio4,365-4,309
Frio4,365-4,309

Tom Oconnor (5800SD) Fld. Unit42-391-01579

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

Lagarto1,500-1,450
Oakville2,750-2,700
Catahoula3,300-3,250
Anahuac4,100-4,050
Frio4,365-4,315
Frio5,000-4,950
Frio5,880-5,830

Tom O'CONNOR(5800'SAND)FLD. Unit42-391-01567

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

Lagarto1,500-1,452
Oakville2,750-2,702
Catahoula3,300-3,252
Anahuac4,100-4,052
Frio4,365-4,317
Frio4,365-4,317
Frio5,000-4,952
Frio5,880-5,832

Tom Oconnor (5800SD) Fld. Unit42-391-02036

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

Surface SD Clay1,500-1,452
Lagarto1,500-1,452
Oakville2,750-2,702
Catahoula3,300-3,252
Catahoula4,100-4,052
Anahuac4,100-4,052
Frio4,365-4,317
Anahuac4,365-4,317

13 TOPS · FIRST 8

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/39101539, documented in the API reference.