WELL · 42-391-01468 · DISTRICT 2

Tom Oconnor (5800 SD) Fld. Unit #50

N

Refugio County · Tom Oconnor (5800) field  · Vertical

Tom Oconnor (5800 SD) Fld. Unit #50 (API 42-391-01468) is a permitted well in Refugio County filed by Hilcorp Energy Company; no completion report is on file yet.

The RRC has issued 2 drilling permits between 2004 and 2017, permitted to 5,951 ft.

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

Its 3 leases have reported 23.4M barrels of oil and 15.7M mcf of gas since January 1993, last reporting in July 2026. The leases carry 631 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 CompanyAug 29, 2017
5,951
total depth, ft
2
permits on file
Aug 29, 2017
last permit issued
—
completed
23.4M
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

28.341514, -97.164376

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 631 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-2-11489Tom Oconnor (5300, East)Hilcorp Energy Company17846Aug 2017 – Jul 2026

Oil, barrels lease total

Last 12 months 728,817 · prior 12 562,355(+30%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 118,367 · prior 12 85,398(+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
829878-99RecompletionHilcorp Energy CompanyAug 15, 2017Aug 29, 2017Aug 1, 20175,951
541793-99RecompletionHilcorp Energy CompanyFeb 6, 2004Feb 12, 2004May 26, 20045,951

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-1542————
—— O-2-5280————
—— O-2-11489————

Formation tops

As filed on W-2/G-1. Subsea from 51 ft elevation.Download CSV →

FormationMD ftSubsea
FrioMIDDLE FRIO (SINTON)540-489
LagartoLARGARTO2,750-2,699
Oakville3,300-3,249
Catahoula3,628-3,577
CatahoulaCATAHOULA (MIOCENE)4,100-4,049
Ananhuac (Miocene)4,365-4,314
Frio4,406-4,355
FrioFRIO-GRETA (OLIGECENE)4,785-4,734
FrioLOWER FRIO (OLIGOCENE)5,951-5,900
JacksonJACKSON/YEGUA——

Perforations

Perforated and open-hole intervals.

FromToType
5,3205,332Perforated
5,7715,780Perforated
—5,830Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,22714350 S
55,9498.75500 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 28, 2018May 17, 2018Yes
00Oct 22, 2004Jun 23, 2004Yes
00Sep 15, 2004——
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 SD) Fld. Unit42-391-01428

0.6 KM · Pennzoil Producing Co. · Section with this well →

Catahoula3,602-3,551
Frio4,365-4,314
Top 53005,269-5,218
Jackson—

M. F. Lambert42-391-01446

0.7 KM · Pennzoil Producing Co. · Section with this well →

Catahoula3,609-3,558
Frio4,362-4,311
Greta5,068-5,017
5675'5,642-5,591
5800'5,807-5,756
5900'5,886-5,835
NO Change—

M. F. Lambert42-391-01442

0.7 KM · Pennzoil Producing Co. · Section with this well →

Catahoula3,300-3,236
44004,402-4,338
Frio5,000-4,936
51005,152-5,088
NO Change—
Jackson—

Thomas O'Connor 'A'42-391-01473

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

Lagarto1,500-1,447
Oakville2,750-2,697
Catahoula3,300-3,247
Catahoula3,635-3,582
Anahuac4,100-4,047
Frio4,365-4,312
Frio4,398-4,345
Frio5,000-4,947

10 TOPS · FIRST 8

Tom O'Connor (5800 SD) FLD Unit42-391-01491

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

Lagarto2,750-2,692
Catahoula3,625-3,567
Oakville4,100-4,042
Frio4,342-4,284
Anahuac4,365-4,307
Jackson—

Tom O'Connor (5800 SD) Fld. Unit42-391-01449

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

Lagarto1,500-1,451
Oakville2,750-2,701
Anahuac3,300-3,251
Catahoula3,300-3,251
Anahuac4,100-4,051
Frio4,365-4,316
Frio4,365-4,316
46004,498-4,449

13 TOPS · FIRST 8

Lambert, M.F.42-391-33297

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

Catahoula3,300-3,250
Frio—
Jackson—

Lambert, M.F.42-391-33298

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

Catahoula3,300-3,250
Frio4,365-4,315
Jackson—

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/39101468, documented in the API reference.