Petrora

WELL · 42-391-31743 · DISTRICT 2

Tom O'Connor (4150 Ft. Sd.) Unit #3105WA

N

Refugio County  · Vertical

Tom O'Connor (4150 FT. SD.) Unit #3105WA (API 42-391-31743) is a former disposal or injection well in Refugio County, last operated by Hilcorp Energy Company; its UIC permit is no longer active.

The RRC has issued 9 drilling permits (amended 3 times) between 1984 and 2013, permitted to 6,000 ft.

Completion filings report 9 formation tops, including Lagarto, Oakville, Catahoula, Catahoul (Miocene).

Its 7 leases have reported 3.2M barrels of oil and 3.11M mcf of gas since January 1993, last reporting in July 2026. The leases carry 150 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Mar 27, 2026
Permits on file
3,454
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanySep 17, 2013
6,000
total depth, ft
12
permits on file
Sep 17, 2013
last permit issued
—
completed
3.2M
cumulative oil, bbl
3.11M
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

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 7 leases this well is completed on; they carry 150 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Heard, Fannie V. W., Mrs. O-2-2586Tom Oconnor (5500 Sand)Hilcorp Energy Company602.28M1.64MJan 1993 – Jul 2026
Heard, Fannie V.W. Mrs. O-2-7813Tom Oconnor (5200, East)Hilcorp Energy Company17312K705KJan 1993 – Jul 2026
Tom O'Connor (4150 Ft. Sd.) Unit O-2-8874Tom O'Connor (4150)Hilcorp Energy Company68512K461KJun 2004 – Jul 2026
Heard, Fannie V.W. Mrs. O-2-6949Tom Oconnor (5625 Sand)Hilcorp Energy Company3101K157KJan 1993 – Mar 2016
Heard, Fannie V. W., Mrs. G-2-229790Tom Oconnor (4200)Hilcorp Energy Company1035.5KAug 2007 – Sep 2013
Heard, Mrs. Fannie V. W. G-2-154658Tom Oconnor (5425 Sand)Hilcorp Energy Company10105KMay 1995 – Jun 2002
— G-2-116550——000—

Oil, barrels lease total

Last 12 months 50,577 · prior 12 39,972(+27%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 1,544 · prior 12 2,041(-24%)

010K20K202420252026

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
769805-99RecompletionHilcorp Energy CompanySep 11, 2013Sep 17, 2013Sep 8, 20134,502
638725-98RecompletionHilcorp Energy CompanyJul 24, 2007May 17, 2007Aug 14, 20076,000
638725-99RecompletionHilcorp Energy CompanyMay 9, 2007May 17, 2007—6,000
519933-99RecompletionHilcorp Energy CompanyMay 13, 2002May 17, 2002Jun 10, 20026,000
480094-99RecompletionQuintana Pet. Corp.Oct 12, 1998Oct 16, 1998—6,000
432257-99RecompletionQuintana Pet. Corp.Jan 26, 1995Jan 30, 1995Apr 28, 19956,000
396363-97RecompletionQuintana Pet. Corp.Oct 8, 1992Feb 27, 1992Aug 4, 19926,000
396363-98RecompletionQuintana Pet. Corp.May 28, 1992Feb 27, 1992—6,000
396363-99RecompletionQuintana Pet. Corp.Jan 31, 1992Feb 27, 1992—6,000
358868-99RecompletionQuintana Pet. Corp.May 3, 1989Jul 12, 1989—6,000
253260-99RecompletionQuintana Pet. Corp.Sep 21, 1984Oct 2, 1984—6,000
244128-99DrillQuintana Pet. Corp.Jul 2, 1984Jul 5, 1984Aug 18, 19846,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-116550————
—— G-2-154658————
—— G-2-229790————
—— O-2-2586————
—— O-2-6949————
—— O-2-7813————
—— O-2-8874————

Formation tops

As filed on W-2/G-1. Subsea from 57 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,443
Oakville2,750-2,693
Oakville2,900-2,843
CatahoulaCATAHOULA (MIOCENE)3,300-3,243
CatahoulaCATAHOULA(MIOCENE)3,300-3,243
Catahoul (Miocene)3,300-3,243
Catahoula3,600-3,543
Anahuac4,100-4,043
AnahuacANAHUAC (MIOCENE)4,100-4,043
AnahuacANAHUAC(MIOCENE)4,100-4,043
Greta4,300-4,243
FrioFRIO GRETA (OLIGOCENE)4,365-4,308
FrioFRIO-GRETA (OLIGOCENE4,365-4,308
FrioFRIO-GRETA (OLIGOCENE)4,365-4,308
FrioFRIO-GRETA(OLIGOCENE)4,365-4,308
FrioMIDDLE FRIO (SINTON)5,000-4,943
FrioUPPER FRIO5,000-4,943
FrioLOWER FRIO5,800-5,743
FrioLOWER FRIO (OLIGOCENE)5,880-5,823
Lwer Frio (Oligocene)5,880-5,823
NO Change——

Perforations

Perforated and open-hole intervals.

FromToType
4,1124,122Perforated
4,1384,154Perforated
5,0985,106Perforated
5,1535,158Perforated
5,4045,412Perforated
5,5065,510Perforated
5,6075,615Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,46814.75755 S
75,9799.8751,410 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 6, 2014Sep 20, 2013—
00Oct 5, 2007Aug 27, 2007Yes
00Oct 2, 2007——
00Aug 19, 2002Jun 25, 2002Yes
00Jul 11, 2002——
00Nov 6, 1995May 30, 1995Yes
00Jul 13, 1995——
00Mar 24, 1993Dec 16, 1992Yes
00Jan 4, 1993May 14, 1985—
00Oct 4, 1985May 14, 1985—
00Oct 3, 1985May 14, 1985Yes
00Aug 26, 1985Jun 6, 1985—
00Aug 18, 1985——
00Aug 15, 1985——
00Aug 14, 1985——
00Aug 13, 1985——

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
0
bbl, all reported
—
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000052834H-1 InjectionCanceled Feb 10, 19886,0002,2505,758–5,774

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/39131743, documented in the API reference.