WELL · 42-391-01498 · DISTRICT 2

Thomas O'Connor 'A' #5

Thomas O'Connor 'A' #5 (API 42-391-01498) is a disposal or injection well in Refugio County operated by Hilcorp Energy Company under an active UIC permit.

The RRC has issued 3 drilling permits between 2007 and 2024, permitted to 5,910 ft.

Completion filings report 4 formation tops, including Catahoula, Frio, Jackson, No Change.

Its 3 leases have reported 24M barrels of oil and 16.3M mcf of gas since January 1993, last reporting in July 2026. The leases carry 658 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 30.3K barrels injected in the 12 months reported through September 2025; TexNet located 0 M2+ earthquakes within 10 km over the last two years.

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 CompanyNov 4, 2024

5,910: total depth, ft
3: permits on file
Nov 4, 2024: last permit issued
—: completed
24M: cumulative oil, bbl
16.3M: 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

28.352678, -97.148115

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 3 leases this well is completed on; they carry 658 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
Tom Oconnor (5800 SD) Fld. Unit O-2-5280	Tom Oconnor (5800)	Hilcorp Energy Company	594	22.8M	14.9M	Jan 1993 – Jul 2026
O'Connor, Thomas "A" O-2-7579	Tom O'Connor (5770 U, South)	Hilcorp Energy Company	28	538K	627K	Jan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 734,019 · prior 12 569,900(+29%)

Gas, mcf lease total

Last 12 months 118,722 · prior 12 86,153(+38%)

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
903613-99	Recompletion	Hilcorp Energy Company	Oct 29, 2024	Nov 4, 2024	—	5,846
852683-99	Recompletion	Hilcorp Energy Company	May 1, 2019	May 3, 2019	Apr 17, 2019	5,910
649040-99	Recompletion	Hilcorp Energy Company	Nov 6, 2007	Nov 12, 2007	Mar 4, 2008	5,846

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-2-1542	—	—	—	—
—	— O-2-5280	—	—	—	—
—	— O-2-7579	—	—	—	—

Formation tops

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

Formation	MD ft	Subsea
Catahoula	3,665	-3,614
Frio	4,457	-4,406
JacksonJACKSON/YEGUA	—	—
NO Change	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
5,000	5,006	Perforated
5,519	—	Perforated
5,772	5,783	Perforated
5,801	5,806	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	748	16	250 S
10.75	750	16	250 S
10.75	1,245	14.75	400 S
7	5,789	9.875	500 S
5	5,909	6.125	125 S
7	5,948	9.875	980 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
Aug 7, 2023	Mar 22, 2023	—
Aug 17, 2022	Jul 20, 2022	—
May 23, 2019	May 6, 2019	—
May 13, 2008	Mar 19, 2008	Yes
May 1, 2008	—	—
Jan 12, 1984	Dec 18, 1968	—
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 42-391-01498 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-391-01498 → 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 Unit42-391-01501

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

Catahoula	3,655	-3,602
Catahoula	3,655	-3,602
Frio	4,403	-4,350
M. Frio Sinton	5,062	-5,009
Jackson	—
Jackson	—

O'Connor, Thomas 'A'42-391-01502

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

Catahoula	3,628	-3,575
Frio	4,387	-4,334
Jackson	—

Thomas O'Connor 'A'42-391-01524

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	3,300	-3,252
Catahoula	3,688	-3,640
Anahuac	4,100	-4,052
Anahuac	4,100	-4,052
Frio	4,365	-4,317

15 TOPS · FIRST 8

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

0.9 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 SD) Fld. Unit42-391-01520

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

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

13 TOPS · FIRST 8

Tom OCONNOR(5800 Sand)field Unit42-391-01514

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

Surface Sand Clay	1,500	-1,449
Lagarto	1,500	-1,449
Oakville	2,750	-2,699
Catahoula	3,300	-3,249
Catahoula	3,300	-3,249
Anahuac	4,100	-4,049
Greta	4,362	-4,311
Frio	4,365	-4,314

15 TOPS · FIRST 8

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

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

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

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

1.1 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	—

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

30.3K: bbl, last 12 reported months
1.15M: bbl, all reported
Sep 2025: reported through

UIC	Kind	Status	Permitted bbl/d	Max psi	Zone ft
000117657	H-1 Injection	Active	10,000	2,800	5,665–5,799

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

Last 12 months 30,325 · prior 12 166,688(-82%)

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/39101498, documented in the API reference.