WELL · 42-391-01520 · DISTRICT 2

Tom O'Connor (5800 SD) Fld. Unit #Q045

N

Refugio County  · Vertical

Tom O'Connor (5800 SD) Fld. Unit #Q045 (API 42-391-01520) is a permitted well in Refugio County filed by Hilcorp Energy Company; no completion report is on file yet.

The RRC has issued 6 drilling permits between 1983 and 2024, permitted to 5,925 ft.

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

Its 2 leases have reported 22.8M barrels of oil and 15.7M mcf of gas since January 1993, last reporting in July 2026. The leases carry 595 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 schedulenone
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanyApr 18, 2024
5,925
total depth, ft
6
permits on file
Apr 18, 2024
last permit issued
—
completed
22.8M
cumulative oil, bbl
15.7M
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

28.359936, -97.152402

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 2 leases this well is completed on; they carry 595 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
O'Connor, Thomas -A- G-2-139323Tom Oconnor (5400 Sand)Hilcorp Energy Company10774KJan 1993 – Mar 2024

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
898569-99RecompletionHilcorp Energy CompanyApr 3, 2024Apr 18, 2024—5,925
701974-99RecompletionHilcorp Energy CompanySep 9, 2010Sep 15, 2010—5,925
389385-99RecompletionQuintana Pet. Corp.Jun 27, 1991Jul 2, 1991Jul 19, 19915,925
333184-99RecompletionQuintana Pet. Corp.Jul 20, 1987Jul 21, 1987—5,925
219322-99RecompletionQuintana Pet. Corp.Sep 26, 1983Oct 19, 1983—5,925
219320-99RecompletionQuintana Pet. Corp.Sep 26, 1983Oct 19, 1983—5,925

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-139323————
—— O-2-5280————
—— O-2-5280————

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
Catahoula3,300-3,250
CatahoulaCATAHOULA (MIOCENE)3,300-3,250
Anahuac4,100-4,050
AnahuacANAHUAC (MIOCENE)4,100-4,050
Frio4,365-4,315
FrioFRIO-GRETA4,365-4,315
FrioFRIO-GRETA (OLIGOCENE)4,365-4,315
FrioMIDDLE FRIO5,000-4,950
FrioMIDDLE FRIO (SINTON)5,000-4,950
Kiwer Frio5,880-5,830
FrioLOWER FRIO (OLIGOCENE)5,880-5,830

Perforations

Perforated and open-hole intervals.

FromToType
5,3725,382Perforated
5,7225,730Perforated
5,7655,775Perforated
5,7705,775Perforated
—5,780Perforated
—5,800Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,03816250 S
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
00Mar 4, 2025Oct 8, 2024—
00Nov 21, 1991Aug 29, 1991Yes
00Sep 27, 1991——
00May 18, 1988Mar 7, 1988Yes
00Mar 30, 1988——
00Aug 17, 1984Feb 2, 1984—
00Mar 6, 1984Dec 5, 1983—
00Feb 28, 1984Dec 5, 1983—
00Jan 12, 1984Feb 2, 1984—
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 Sand)field Unit42-391-01514

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

Lagarto1,500-1,449
Surface Sand Clay1,500-1,449
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

O'Connor, Thomas 'C'42-391-01167

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

Lagarto1,500-1,446
Oakville2,750-2,696
Catahoula3,300-3,246
Catahoula3,565-3,511
Anahuac4,100-4,046
Frio4,329-4,275
Frio4,365-4,311
Frio4,785-4,731

12 TOPS · FIRST 8

O'Connor, Thomas 'A'42-391-01502

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

Catahoula3,628-3,575
Frio4,387-4,334
Jackson—

Oconnor, Thomas -C-42-391-01564

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

0.8 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 (5800 Sd)field Unit42-391-01148

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

Lagarto1,500-1,447
Oakville2,750-2,697
Catahoula3,300-3,247
Anahuac4,100-4,047
Frio4,365-4,312
Frio4,366-4,313
Catahoula4,566-4,513
Top PF 49004,739-4,686

12 TOPS · FIRST 8

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

0.9 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

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

0.9 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

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/39101520, documented in the API reference.