TEXAS · WELLS · REFUGIO COUNTY · API 42-391-01537 · DISTRICT 02

Tom Oconnor (5800 SD) Fld. Unit #17U

Y

Refugio County · Tom Oconnor (5800) field · Producing  · Vertical

Tom Oconnor (5800 SD) Fld. Unit #17U (API 42-391-01537) is a well in Refugio County operated by Hilcorp Energy Company, completed January 20, 2021 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued March 24, 1989, permitted to 5,895 ft.

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

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

Its 2 leases have reported 23.3M barrels of oil and 15.5M mcf of gas since January 1993, last reporting in July 2026. The leases carry 622 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit.

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

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitQuintana Pet. Corp.Mar 24, 1989

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

5,895
total depth, ft
2
permits on file
Mar 24, 1989
last permit issued
Jan 20, 2021
completed
23.3M
cumulative oil, bbl
15.5M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 20, 2021
Shut in
—
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 2 leases this well is completed on; they carry 622 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
O'Connor, Thomas "A" O-2-7579Tom O'Connor (5770 U, South)Hilcorp Energy Company28538K627KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 678,402 · prior 12 531,953(+28%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,881 · prior 12 84,467(+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
357357-98RecompletionQuintana Pet. Corp.Oct 19, 1989Mar 24, 1989—5,895
357357-99RecompletionQuintana Pet. Corp.Mar 23, 1989Mar 24, 1989—5,895

Completions

CompletedLeaseFieldOperatorStatusDepth
Jan 20, 2021Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy CompanyProducing5,895
Jul 13, 1989O Connor Thomas A O-2-7579Tom O Connor (5770 U South)Hilcorp Energy CompanyShut In · shut in Aug 1, 20265,895
—Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy CompanyNot on Schedule—
—Oconnor Thomas -A- O-2-5012Tom Oconnor (5800)Hilcorp Energy CompanyNot on Schedule—
—Oconnor Thomas -A- O-2-1542Tom OconnorHilcorp Energy CompanyNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 50 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,450
Oakville2,750-2,700
CatahoulaCATAHOULA (MIOCENE)3,300-3,250
Catahoula3,651-3,601
AnahuacANAHUAC (MIOCENE)4,100-4,050
FrioFRIO-GRETA (OLIGOCENE)4,365-4,315
Frio4,414-4,364
FrioMIDDLE FRIO (SINTON)5,000-4,950
FrioLOWER FRIO (OLIGOCENE)5,880-5,830
JacksonJACKSON/YEGUA——

Perforations

Perforated and open-hole intervals.

FromToType
5,7765,784Perforated
5,7975,805Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.7550216100 S
75,7709.875400 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 10, 2021Jun 3, 2021—
00Jun 11, 1990Oct 19, 1989Yes
00Apr 13, 1990—Yes
00Apr 12, 1990——
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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
0
bbl, all reported
Sep 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000126979H-1 InjectionActive10,0002,0005,798–5,893

MONTHLY INJECTED, BBL · H-10 · LAST 12 REPORTED MONTHS

Last 12 months 0

012025

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/39101537, documented in the API reference.