WELL · 42-391-01551 · DISTRICT 2

Tom Oconnor (5800 SD) Fld. Unit #Q084 E

Tom Oconnor (5800 SD) Fld. Unit #Q084 E (API 42-391-01551) is a former disposal or injection well in Refugio County, last operated by Hilcorp Energy Company; its UIC permit is no longer active.

The RRC has issued 6 drilling permits (amended twice) between 1992 and 2023, permitted to 5,919 ft.

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

Its 5 leases have reported 23.9M barrels of oil and 17.4M mcf of gas since January 1993, last reporting in July 2026. The leases carry 667 wells, so these are lease totals, not this well alone.

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 schedule	none
Production reports	Hilcorp Energy Companythrough Apr 2026
Latest permit	Hilcorp Energy CompanyJul 21, 2023

5,919: total depth, ft
8: permits on file
Jul 21, 2023: last permit issued
—: completed
23.9M: cumulative oil, bbl
17.4M: 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

28.360623, -97.138876

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 5 leases this well is completed on; they carry 667 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Oconnor, Thomas -A- O-2-1542	Tom Oconnor	Hilcorp Energy Company	36	650K	756K	Jan 1993 – Jul 2026
O'Connor, Thomas "A" O-2-3662	Tom Oconnor (5400 Sand)	Hilcorp Energy Company	20	273K	1.01M	Jan 1993 – Jul 2026
Oconnor, Thomas -A- O-2-4927	Tom Oconnor (5450 Sand)	Hilcorp Energy Company	12	238K	685K	Jan 1993 – Jul 2026
Tom Oconnor (5800 SD) Fld. Unit O-2-5280	Tom Oconnor (5800)	Hilcorp Energy Company	594	22.8M	14.9M	Jan 1993 – Jul 2026
Oconnor, Thomas, -A- O-2-2489	Tom Oconnor (4400)	Hilcorp Energy Company	5	5.68K	80.8K	Jan 1993 – Oct 2001

Oil, barrels lease total

Last 12 months 728,817 · prior 12 562,355(+30%)

Gas, mcf lease total

Last 12 months 118,367 · prior 12 85,398(+39%)

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
892133-99	Recompletion	Hilcorp Energy Company	Jul 17, 2023	Jul 21, 2023	Jun 19, 2023	5,919
761084-99	Recompletion	Hilcorp Energy Company	Apr 18, 2013	Apr 26, 2013	Apr 15, 2013	5,919
517281-98	Recompletion	Hilcorp Energy Company	Jul 29, 2002	Feb 4, 2002	Jun 21, 2002	5,919
517281-99	Recompletion	Hilcorp Energy Company	Feb 1, 2002	Feb 4, 2002	—	5,919
464139-99	Recompletion	Quintana Pet. Corp.	Jun 23, 1997	Jun 30, 1997	Nov 6, 1996	5,919
434432-99	Recompletion	Quintana Pet. Corp.	Mar 31, 1995	Apr 5, 1995	Dec 15, 1993	5,919
403641-98	Recompletion	Quintana Pet. Corp.	Jan 15, 1993	Sep 24, 1992	—	5,919
403641-99	Recompletion	Quintana Pet. Corp.	Sep 18, 1992	Sep 24, 1992	—	5,919

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-2-1542	—	—	—	—
—	— O-2-2489	—	—	—	—
—	— O-2-3662	—	—	—	—
—	— O-2-4927	—	—	—	—
—	— O-2-5280	—	—	—	—
—	— O-2-5280	—	—	—	—

Formation tops

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

Formation	MD ft	Subsea
LagartoLARGARTO	1,500	-1,452
LagartoLARGARTO	2,750	-2,702
Oakville	2,750	-2,702
Oakville	2,880	-2,832
CatahoulaCATAHOULA MIOCENE	3,300	-3,252
Oakville	3,300	-3,252
Catahoula	3,655	-3,607
AnahuacANAHUAC MIOCENE	4,100	-4,052
CatahoulaCATAHOULA (MIOCENE)	4,100	-4,052
Anahuac	4,230	-4,182
AnahuacANAHUAC (MIOCENE)	4,365	-4,317
FrioFRIO GRETA OLIGOCENE	4,365	-4,317
Greta	4,400	-4,352
FrioFRIO-GRETA (OLIGOCENE)	4,785	-4,737
FrioMIDDLE FRIO SINTON	5,000	-4,952
FrioUPPER FRIO	5,080	-5,032
FrioMIDDLE FRIO (SINTON)	5,400	-5,352
FrioMIDDLE FRIO	5,820	-5,772
FrioLOWER FRIO OLIGOCENE	5,880	-5,832
FrioLOWER FRIO (OLIGOCENE)	5,919	-5,871
NO Change	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
4,406	4,416	Perforated
5,406	5,412	Perforated
5,491	5,497	Perforated
5,792	5,799	Perforated
5,821	5,832	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	1,052	14	350 S
5.5	5,916	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
Dec 13, 2023	Oct 23, 2023	—
Aug 26, 2013	May 16, 2013	—
Jul 8, 2013	May 1, 2013	—
Oct 21, 2002	Aug 20, 2002	Yes
Sep 23, 2002	—	—
Dec 11, 1997	Jul 14, 1997	Yes
Nov 17, 1997	Feb 23, 1995	—
Aug 10, 1995	Feb 23, 1995	—
Jun 23, 1995	—	—
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 42-391-01551 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-391-01551 → 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.

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 →

Tom O'Connor (5800 SD) FLD Unit42-391-01552

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

Anahuac	2,252	-2,197
Anahuac	2,252	-2,197
Catahoula	3,609	-3,554
Frio	4,265	-4,210

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

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

Catahoula	3,650	-3,600
Greta	4,362	-4,312
Frio	4,402	-4,352
NO Change	—
Jackson	—

Tom O'Connor (5800 SD) FLD Unit42-391-01553

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

Catahoula	3,672	-3,623
Catahoula	3,672	-3,623
Frio	4,419	-4,370
Frio	4,419	-4,370
M. Frio Sinton	5,030	-4,981
Jackson	—
Jackson	—
NO Change	—

Oconnor, Thomas -C-42-391-01564

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

Oakville	2,750	-2,694
Catahoula	3,300	-3,244
Frio	4,365	-4,309
Frio	4,365	-4,309

Tom Oconnor (5800SD) Fld. Unit42-391-01579

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

Lagarto	1,500	-1,450
Oakville	2,750	-2,700
Catahoula	3,300	-3,250
Anahuac	4,100	-4,050
Frio	4,365	-4,315
Frio	5,000	-4,950
Frio	5,880	-5,830

O'Connor, Thomas 'A'42-391-01546

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

Lagarto	1,500	-1,452
Oakville	2,750	-2,702
Catahoula	3,300	-3,252
Catahoula	3,676	-3,628
Anahuac	4,100	-4,052
Frio	4,365	-4,317
Frio	4,452	-4,404
Frio	5,000	-4,952

10 TOPS · FIRST 8

Tom O'CONNOR(5800'SAND)FLD. Unit42-391-01567

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

Lagarto	1,500	-1,452
Oakville	2,750	-2,702
Catahoula	3,300	-3,252
Anahuac	4,100	-4,052
Frio	4,365	-4,317
Frio	4,365	-4,317
Frio	5,000	-4,952
Frio	5,880	-5,832

Tom Oconnor (5800 SD) Fld. Unit42-391-32502

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

Lagarto	2,750	-2,698
Oakville	3,300	-3,248
Catahoula	3,688	-3,636
Catahoula	4,100	-4,048
Anahuac	4,365	-4,313
Greta	4,420	-4,368
Frio	4,421	-4,369
Frio	4,785	-4,733

13 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0: bbl, last 12 reported months
0: bbl, all reported
—: reported through

UIC	Kind	Status	Permitted bbl/d	Max psi	Zone ft
000119457	H-1 Injection	Not activated	3,500	2,650	5,300–5,870

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/39101551, documented in the API reference.