Petrora

WELL · 42-391-31785 · DISTRICT 2

Tom Oconnor (5800 SD) Fld. Unit #86U

Shut in

Refugio County · Tom Oconnor (5800) field · Shut IN  · Vertical

Tom Oconnor (5800 SD) Fld. Unit #86U (API 42-391-31785) is a well in Refugio County operated by Hilcorp Energy Company, completed November 10, 2021 and listed as shut in on the RRC schedule, shut in December 1, 2025.

The RRC has issued 4 drilling permits (amended once) between 1984 and 1995, permitted to 6,124 ft.

It was permitted by Quintana Pet. Corp. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

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

Its 3 leases have reported 25M barrels of oil and 17M mcf of gas since January 1993, last reporting in July 2026. The leases carry 646 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Permitted by Quintana Pet. Corp.; the EWA schedule now lists a different operator.

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
Watch this operatorWatch Refugio County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitQuintana Pet. Corp.Aug 16, 1995
6,124
total depth, ft
5
permits on file
Aug 16, 1995
last permit issued
Nov 10, 2021
completed
25M
cumulative oil, bbl
17M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 10, 2021
Shut in
Dec 1, 2025
Plugged
—

Operator's P-5 on the schedule: Active (A)

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 3 leases this well is completed on; they carry 646 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Oconnor, Thomas, -C- O-2-2587Tom Oconnor (5500 Sand)Hilcorp Energy Company512.22M2.1MJan 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-2-8001Tom Oconnor (5450 Sand)Quintana Pet. Corp.11533.52KSep 1994 – May 1996

Oil, barrels lease total

Last 12 months 679,197 · prior 12 533,906(+27%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,908 · prior 12 84,116(+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
437913-99RecompletionQuintana Pet. Corp.Jul 17, 1995Aug 16, 1995—6,124
423797-98RecompletionQuintana Pet. Corp.Aug 8, 1994Jun 15, 1994Jul 22, 19946,124
423797-99RecompletionQuintana Pet. Corp.May 10, 1994Jun 15, 1994—6,124
336219-99RecompletionQuintana Pet. Corp.Sep 21, 1987Sep 23, 1987—6,124
254016-99DrillQuintana Pet. Corp.Sep 19, 1984Oct 9, 1984—6,100

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 10, 2021Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy CompanyShut IN · shut in Dec 1, 20256,124
Aug 9, 1994O Connor Thomas C O-2-8001Tom Oconnor (5450 Sand)Quintana Pet. Corp.Not on Schedule—
Sep 23, 1987Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy CompanyNot on Schedule—
Sep 23, 1987Oconnor Thomas -C- O-2-2587Tom Oconnor (5500 Sand)Hilcorp Energy CompanyNot on Schedule—
Nov 29, 1984O Connor Thomas -C- O-2-2876Tom Oconnor (5900 Sand)Hilcorp Energy CompanyNot on Schedule—

Formation tops

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

FormationMD ftSubsea
Lagarto1,500-1,447
LagartoLARGARTO1,500-1,447
Oakville2,750-2,697
CatahoulaCATAHOULA (MIOCENE)3,300-3,247
CatahoulaCATAHOULA(MIOCENE)3,300-3,247
Anahuac4,100-4,047
AnahuacANAHUAC (MIOCENE)4,100-4,047
AnahuacANAHUAC(MIOCENE)4,100-4,047
FrioFRIO-GRETA (OLIG)4,365-4,312
FrioFRIO-GRETA (OLIGOCENE)4,365-4,312
FrioFRIO-GRETA(OLIGOCENE)4,365-4,312
FrioMIDDLE FRIO (SINTON)5,000-4,947
FrioMIDDLE FRIO(SINTON)5,000-4,947
FrioLOWER FRIO (OLIG.)5,880-5,827
FrioLOWER FRIO (OLIGOCENE)5,880-5,827
FrioLOWER FRIO(OLIGOCENE)5,880-5,827

Perforations

Perforated and open-hole intervals.

FromToType
5,4685,473Perforated
5,5105,515Perforated
5,7195,724Perforated
5,7455,750Perforated
5,8425,852Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,44214.75834 S
76,1119.8751,350 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
00Feb 2, 2022Jan 19, 2022—
00Jun 20, 1996May 9, 1996—
00May 28, 1996Nov 3, 1987Yes
00Dec 30, 1994Oct 18, 1994Yes
00Oct 26, 1994Nov 3, 1987Yes
00Nov 24, 1987Nov 3, 1987Yes
00Nov 16, 1987——
00Jan 22, 1985Dec 18, 1984—
00Jan 10, 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.

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/39131785, documented in the API reference.