TEXAS · WELLS · REFUGIO COUNTY · TOM OCONNOR (5800 SD) FLD. UNIT LEASE · API 42-391-01529 · DISTRICT 02

Tom Oconnor (5800 SD) Fld. Unit #110

Plugged

Refugio County · Tom Oconnor (5800) field  · Vertical

Tom Oconnor (5800 SD) Fld. Unit #110 (API 42-391-01529) is a plugged well in Refugio County, plugged August 6, 2004, last operated by Hilcorp Energy Company.

The RRC has issued 4 drilling permits between 1978 and 2001, permitted to 4,525 ft.

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

Its lease has reported 22.8M barrels of oil and 14.9M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 594 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
3,458
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 permitHilcorp Energy CompanyDec 17, 2001
4,525
total depth, ft
4
permits on file
Dec 17, 2001
last permit issued
May 2, 1989
completed
22.8M
cumulative oil, bbl
14.9M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 2, 1989
Shut in
—
Plugged
Aug 6, 2004

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 lease this well is completed on; they carry 594 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 – Apr 2026

Oil, barrels lease total

Last 12 months 673,200 · prior 12 524,408(+28%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,526 · prior 12 83,712(+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
516092-99RecompletionHilcorp Energy CompanyDec 13, 2001Dec 17, 2001—4,525
388922-99RecompletionQuintana Pet. Corp.Jun 13, 1991Jun 17, 1991Mar 14, 19894,525
356959-99RecompletionQuintana Pet. Corp.Mar 13, 1989Mar 14, 1989—4,525
17640-99RecompletionQuintana Pet. Corp.Feb 3, 1978Feb 3, 1978—4,525

Completions

CompletedLeaseFieldOperatorStatusDepth
May 2, 1989Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy CompanyPlugged—
—Oconnor Thomas -A- G-2-60357Tom Oconnor (4400)Quintana Pet. Corp.Plugged—
—Oconnor Thomas -A- O-2-2489Tom Oconnor (4400)Hilcorp Energy CompanyPlugged—

Formation tops

As filed on W-2/G-1. Subsea from 51 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,449
LagartoLARGARTO2,750-2,699
Oakville2,750-2,699
CatahoulaCATAHOULA (MIOCENE)3,300-3,249
CatahoulaCATAHOULA(MIOCENE)3,300-3,249
AnahuacANAHUAC (MIOCENE)4,100-4,049
AnahuacANAHUAC(MIOCENE)4,100-4,049
FrioFRIO-GRETA (OLIGOCENE)4,365-4,314

Perforations

Perforated and open-hole intervals.

FromToType
3,2843,302Perforated
3,3483,358Perforated
3,7603,790Perforated
4,3904,396Perforated
—4,388Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,22213.75375 S
5.54,4998.75880 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jul 28, 1994Jun 23, 1993—
00Nov 10, 1993Oct 26, 1993—
00Jan 12, 1984Apr 7, 1978—
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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
1.04M
bbl, all reported
Sep 2004
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000001987W-14 DisposalPlugged Aug 11, 20045,0001,6003,284–3,302

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

Last 12 months 0 · prior 12 12,545(-100%)

02K4K6K20032004

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/39101529, documented in the API reference.