WELL · 42-391-00703 · DISTRICT 2

Tom Oconnor (5800 SD) Fld. Unit #Q344

N

Refugio County  · Vertical

Tom Oconnor (5800 SD) Fld. Unit #Q344 (API 42-391-00703) is a permitted well in Refugio County filed by Hilcorp Energy Company; no completion report is on file yet.

The RRC has issued 4 drilling permits (amended once) between 1986 and 2024, permitted to 7,000 ft.

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

Its 4 leases have reported 24M barrels of oil and 15.4M mcf of gas since January 1993, last reporting in July 2026. The leases carry 658 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 CompanyDec 12, 2024
7,000
total depth, ft
5
permits on file
Dec 12, 2024
last permit issued
—
completed
24M
cumulative oil, bbl
15.4M
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

28.385181, -97.138267

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 4 leases this well is completed on; they carry 658 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
Tom O'CONNOR(5600 Foot Sand)unit O-2-8950Tom O'Connor (5600 Foot Sand)Hilcorp Energy Company591.13M357KMar 2005 – Jul 2026
Heard, Fannie V.W. Mrs. O-2-6949Tom Oconnor (5625 Sand)Hilcorp Energy Company3101K157KJan 1993 – Mar 2016
O'Conner, Thomas -A- O-2-5694Tom Oconnor (5625 Sand)Quintana Pet. Corp.200Jan 1993 – Aug 1996

Oil, barrels lease total

Last 12 months 684,603 · prior 12 537,324(+27%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,715 · prior 12 83,839(+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
904555-99RecompletionHilcorp Energy CompanyDec 9, 2024Dec 12, 2024—7,000
662501-99RecompletionHilcorp Energy CompanyMay 20, 2008Jun 10, 2008May 24, 20105,925
390774-98RecompletionQuintana Pet. Corp.May 6, 1992Aug 19, 1991May 11, 19925,925
390774-99RecompletionQuintana Pet. Corp.Aug 12, 1991Aug 19, 1991—5,925
305132-99RecompletionQuintana Pet. Corp.Aug 11, 1986Aug 12, 1986—5,925

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-5280————
—— O-2-5694————
—— O-2-6949————
—— O-2-8950————

Formation tops

As filed on W-2/G-1. Subsea from 53 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,447
Oakville2,750-2,697
CatahoulaCATAHOULA (MIOCENE)3,300-3,247
AnahuacANAHUAC (MIOCENE)4,100-4,047
FrioFRIO-GRETA (OLIGOCENE)4,365-4,312
FrioFRIO-GRETA(OLIGOCENE)4,365-4,312
FrioMIDDLE FRIO (SINTON)5,000-4,947
FrioLOWER FRIO (OLIGOCENE)5,880-5,827
NO Change——

Perforations

Perforated and open-hole intervals.

FromToType
5,4975,502Perforated
5,5635,571Perforated
5,7245,731Perforated
5,8505,856Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,03816350 S
9.6251,03916350 S
55,9238.75500 S
55,9248.75500 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
00Jan 25, 2011Oct 22, 2010Yes
00Jan 12, 2011——
00Jul 17, 1992May 26, 1992Yes
00Jun 25, 1992——
00Jun 2, 1992Sep 24, 1986Yes
00Oct 6, 1986Sep 24, 1986Yes
00Oct 3, 1986——
00May 25, 1984——
00Jan 12, 1984Nov 28, 1975—

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)FIELD Unit42-391-00690

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

Lagarto1,500-1,447
Oakville2,750-2,697
Catahoula3,300-3,247
Catahoula3,300-3,247
Catahoula3,564-3,511
Anahuac4,100-4,047
Anahuac4,100-4,047
Frio4,327-4,274

16 TOPS · FIRST 8

Tom O'Connor 4400 Sand Gas Unit42-391-03793

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

NO Change—

Heard, Fannie V. W., Mrs.42-391-33201

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

Catahoula3,577-3,527
Frio4,320-4,270
Jackson—

Tom O'CONNOR(5600 Foot Sand)unit42-391-31718

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

Surfac Sand Clay1,500-1,446
Lagarto1,500-1,446
Oakville2,750-2,696
Catahoula3,300-3,246
Catahoula3,567-3,513
Anahuac4,100-4,046
Frio4,348-4,294
Frio4,365-4,311

17 TOPS · FIRST 8

Tom O'CONNOR(5600 Foot Sand)unit42-391-00565

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

Catahoula3,577-3,525
Frio4,339-4,287
Jackson—

Tom O'CONNOR(5600 Foot Sand)unit42-391-00695

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

Lagarto1,500-1,449
Oakville2,750-2,699
Catahoula3,300-3,249
Catahoula3,300-3,249
Catahoula3,300-3,249
Catahoula3,542-3,491
Anahuac4,100-4,049
Anahuac4,100-4,049

19 TOPS · FIRST 8

Mrs. Fannie V. W. Heard42-391-00696

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

Lagarto1,500-1,445
Oakville2,750-2,695
Catahoula3,300-3,245
Catahoula3,583-3,528
Anahuac4,100-4,045
Frio4,316-4,261
Frio4,365-4,310
Top of 45004,387-4,332

11 TOPS · FIRST 8

Mrs. Fannie V. W. Heard42-391-00567

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

NO Change—

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/39100703, documented in the API reference.