WELL · 42-391-00497 · DISTRICT 2

Tom Oconnor (5800 SD) Fld. Unit #Q861

Shut in

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

Tom Oconnor (5800 SD) Fld. Unit #Q861 (API 42-391-00497) is a well in Refugio County operated by Hilcorp Energy Company, completed June 26, 2017 and listed as shut in on the RRC schedule, shut in September 1, 2020.

The RRC has issued 4 drilling permits between 1996 and 2017, permitted to 5,915 ft.

Completion filings report 7 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.

Its 3 leases have reported 22.8M barrels of oil and 15.6M mcf of gas since January 1993, last reporting in July 2026. The leases carry 596 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

Watch this operator Watch Refugio County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	Hilcorp Energy Companythrough Apr 2026
Latest permit	Hilcorp Energy CompanyFeb 27, 2017

5,915: total depth, ft
4: permits on file
Feb 27, 2017: last permit issued
Jun 26, 2017: completed
22.8M: cumulative oil, bbl
15.6M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Jun 26, 2017
Shut in: Sep 1, 2020
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 596 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Tom Oconnor (5800 SD) Fld. Unit O-2-5280	Tom Oconnor (5800)	Hilcorp Energy Company	594	22.8M	14.9M	Jan 1993 – Jul 2026
Williams, Maude et al "A" O-2-8787	Tom Oconnor (5250)	Hilcorp Energy Company	1	2.95K	2.04K	Apr 2003 – Nov 2017
Williams, Maude et al "A" G-2-159681	Tom O'Connor (5025)	Hilcorp Energy Company	1	0	682K	Jun 1996 – Apr 2003

Oil, barrels lease total

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

Gas, mcf lease total

Last 12 months 117,526 · prior 12 83,712(+40%)

Chain of custody

Every operator that reported production on this well's lease, in order.

1Quintana Pet. Corp.Jan 1993 → Nov 2000
2Hilcorp Energy CompanyDec 2000 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
823306-99	Recompletion	Hilcorp Energy Company	Feb 15, 2017	Feb 27, 2017	Jun 13, 2017	5,915
528736-99	Recompletion	Hilcorp Energy Company	Feb 21, 2003	Feb 28, 2003	Apr 21, 2003	5,915
504817-99	Recompletion	Hilcorp Energy Company	Feb 1, 2001	Feb 6, 2001	—	5,915
449511-99	Recompletion	Quintana Pet. Corp.	Jun 20, 1996	Jun 24, 1996	Jun 3, 1996	5,915

Completions

Completed	Lease	Field	Operator	Status	Depth
Jun 26, 2017	Tom Oconnor (5800 SD) Fld. Unit O-2-5280	Tom Oconnor (5800)	Hilcorp Energy Company	Shut IN · shut in Sep 1, 2020	5,915
Apr 23, 2003	Williams Maude et al A O-2-8787	Tom Oconnor (5250)	Hilcorp Energy Company	Not on Schedule	—
Jun 5, 1996	Williams Maude et al A G-2-159681	Tom O Connor (5025)	Hilcorp Energy Company	Not on Schedule	—
Oct 30, 1971	Tom Oconnor (5800 SD) Fld. Unit O-2-5280	Tom Oconnor (5800)	Hilcorp Energy Company	Not on Schedule	—
Sep 6, 1948	Williams Maude Etal -A- O-2-5016	Tom Oconnor (5800)	Hilcorp Energy Company	Not on Schedule	—

Formation tops

As filed on W-2/G-1. Subsea from 54 ft elevation.Download CSV →

Formation	MD ft	Subsea
LagartoLARGARTO	1,500	-1,446
Oakville	2,750	-2,696
CatahoulaCATAHOULA (MIOCENE)	3,300	-3,246
CatahoulaCATAHOULA(MIOCENE)	3,300	-3,246
Catahoula	3,630	-3,576
AnahuacANAHUAC (MIOCENE)	4,100	-4,046
AnahuacANAHUAC(MIOCENE)	4,100	-4,046
FrioFRIO-GRETA (OLIBOCENE)	4,365	-4,311
FrioFRIO-GRETA(OLIGOCENE)	4,365	-4,311
Frio	4,412	-4,358
FrioMIDDLE FRIO (SINTON)	5,000	-4,946
FrioMIDDLE FRIO(SINTON)	5,000	-4,946
FrioLOWER FRIO (OLIGOCENE)	5,880	-5,826
JacksonJACKSON/YEGUA	—	—
NO Change	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
5,097	5,103	Perforated
5,341	5,346	Perforated
5,867	5,872	Perforated
5,878	5,885	Perforated
—	5,903	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	1,180	14	350 S
5.5	5,913	8.75	500 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 →

Filed	W-2 / G-1 date	Logs referenced
Nov 3, 2017	Jul 21, 2017	—
May 29, 2003	May 9, 2003	Yes
May 21, 2003	—	—
Oct 10, 1996	Jul 5, 1996	Yes
Sep 9, 1996	—	—
Nov 26, 1985	Oct 30, 1985	—
Nov 14, 1985	—	—
Jan 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.

Wellbore filings for 42-391-00497 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-391-00497 → scanned completion filings

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/39100497, documented in the API reference.