WELL · 42-391-01567 · DISTRICT 2

O Connor Thomas -C- #39

N

Refugio County · Tom Oconnor (5900 Sand) field  · Vertical

O Connor Thomas -C- #39 (API 42-391-01567) is a disposal or injection well in Refugio County operated by Hilcorp Energy Company under an active UIC permit.

The RRC has issued 2 drilling permits between 1991 and 2023, permitted to 5,925 ft.

Completion filings report 5 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.

Its 4 leases have reported 25.8M barrels of oil and 17.1M 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.

It holds an active disposal or injection permit, with 519K barrels injected in the 12 months reported through November 2025; TexNet located 0 M2+ earthquakes within 10 km over the last two years.

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 CompanySep 18, 2023
5,925
total depth, ft
2
permits on file
Sep 18, 2023
last permit issued
—
completed
25.8M
cumulative oil, bbl
17.1M
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

28.366596, -97.143434

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
O'Connor, Thomas -C- O-2-2876Tom Oconnor (5900 Sand)Hilcorp Energy Company592.99M2.17MJan 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 -C- O-2-9042Tom O'Connor (5770 U, South)Hilcorp Energy Company423Mar 2006 – Jul 2026
Oconnor, Thomas -C- G-2-67536Tom OconnorQuintana Pet. Corp.100Jan 1993 – Mar 1993

Oil, barrels lease total

Last 12 months 675,264 · prior 12 527,268(+28%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,533 · prior 12 83,926(+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
893733-99RecompletionHilcorp Energy CompanySep 14, 2023Sep 18, 2023—5,925
384602-99RecompletionQuintana Pet. Corp.Feb 13, 1991Feb 20, 1991Sep 4, 19915,925

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-67536————
—— O-2-2876————
—— O-2-5280————
—— O-2-9042————

Formation tops

As filed on W-2/G-1. Subsea from 48 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,452
Oakville2,750-2,702
CatahoulaCATAHOULA(MIOCENE)3,300-3,252
AnahuacANAHUAC(MIOCENE)4,100-4,052
Frio4,365-4,317
FrioFRIO-GRETA(OLIGOCENE)4,365-4,317
FrioMIDDLE FRIO (SINTON)5,000-4,952
FrioLOWER FRIO (OLIGOCENE)5,880-5,832

Perforations

Perforated and open-hole intervals.

FromToType
5,7195,732Perforated
5,7955,800Perforated
—5,500Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,03616350 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
00Aug 8, 2024Sep 22, 2023—
00May 11, 1993Mar 8, 1993Yes
00Mar 11, 1993——
00Jan 12, 1984Aug 20, 1976—
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 →

Oconnor, Thomas -C-42-391-01153

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

Lagarto1,500-1,434
Lagarto1,500-1,434
Oakville2,750-2,684
Catahoula3,300-3,234
Catahoula3,540-3,474
Anahuac4,100-4,034
Frio4,365-4,299
Frio5,000-4,934

9 TOPS · FIRST 8

Oconnor, Thomas -C-42-391-01564

0.4 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 (5800 SD) Fld. Unit42-391-01152

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

Lagarto1,500-1,447
Oakville2,750-2,697
Catahoula3,300-3,247
Catahoula3,599-3,546
Anahuac4,100-4,047
Frio4,353-4,300
Frio4,365-4,312
Frio5,000-4,947

12 TOPS · FIRST 8

Tom O'Connor (5800 Sd)field Unit42-391-01148

0.6 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

Thomas O'Connor 'C'42-391-01158

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

Oakville2,900-2,848
Catahoula3,548-3,496
Anahuac4,100-4,048
Greta4,300-4,248
Frio4,330-4,278
Frio5,000-4,948
Frio5,800-5,748
Jackson—

9 TOPS · FIRST 8

Tom Oconnor (5800 SD) Fld. Unit42-391-01551

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

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

18 TOPS · FIRST 8

Tom O'Connor (5800 SD) FLD Unit42-391-01539

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

Catahoula3,650-3,600
Greta4,362-4,312
Frio4,402-4,352
NO Change—
Jackson—

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

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

519K
bbl, last 12 reported months
1.06M
bbl, all reported
Nov 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000124343H-1 InjectionActive10,0001,8005,719–5,732

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 518,673 · prior 12 546,000(-5%)

050K100K150K20242025

TexNet catalog via USGS

Seismicity near this well

0
M2+ events within 10 km, last 2 years
—
largest

A proximity count, not an attribution. How to read it →

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/39101567, documented in the API reference.