WELL · 42-391-32502 · DISTRICT 2
Tom Oconnor (5800 SD) Fld. Unit #118
Refugio County · Vertical
Tom Oconnor (5800 SD) Fld. Unit #118 (API 42-391-32502) is a disposal or injection well in Refugio County operated by Hilcorp Energy Company under an active UIC permit.
The RRC has issued 5 drilling permits (amended once) between 2003 and 2025, permitted to 8,000 ft.
Completion filings report 10 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.
Its 3 leases have reported 23.1M barrels of oil and 15.9M mcf of gas since January 1993, last reporting in July 2026. The leases carry 615 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit; TexNet located 0 M2+ earthquakes within 10 km over the last two years.
Operator of record
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 CompanyAug 5, 2025 |
- 8,000
- total depth, ft
- 6
- permits on file
- Aug 5, 2025
- last permit issued
- —
- completed
- 23.1M
- cumulative oil, bbl
- 15.9M
- 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
28.356419, -97.130822
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 615 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| O'Connor, Thomas "A" O-2-3662 | Tom Oconnor (5400 Sand) | Hilcorp Energy Company | 20 | 273K | 1.01M | 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-2-8860 | Tom Oconnor (5400 Sand) | Hilcorp Energy Company | 1 | 0 | 0 | May 2004 – Jun 2004 |
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 |
|---|---|---|---|---|---|---|
| 909657-99 | Recompletion | Hilcorp Energy Company | Aug 4, 2025 | Aug 5, 2025 | — | 8,000 |
| 849479-99 | Recompletion | Hilcorp Energy Company | Jan 31, 2019 | Feb 1, 2019 | — | 6,203 |
| 743605-99 | Recompletion | Hilcorp Energy Company | Jun 26, 2012 | Jul 5, 2012 | — | 6,203 |
| 539029-98 | Recompletion | Hilcorp Energy Company | Apr 22, 2004 | Dec 2, 2003 | May 4, 2004 | 6,203 |
| 539029-99 | Recompletion | Hilcorp Energy Company | Nov 25, 2003 | Dec 2, 2003 | — | 6,203 |
| 528603-99 | Drill | Hilcorp Energy Company | Feb 18, 2003 | Feb 21, 2003 | Jun 20, 2003 | 6,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-3662 | — | — | — | — |
| — | — O-2-5280 | — | — | — | — |
| — | — O-2-8860 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 52 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| LagartoLARGARTO | 2,750 | -2,698 |
| Oakville | 3,300 | -3,248 |
| Catahoula | 3,688 | -3,636 |
| Catahoula | 3,690 | -3,638 |
| CatahoulaCATAHOULA (MIOCENE) | 4,100 | -4,048 |
| AnahuacANAHUAC (MIOCENE) | 4,365 | -4,313 |
| Greta | 4,420 | -4,368 |
| Frio | 4,421 | -4,369 |
| FrioFRIO-GRETA (OLIG) | 4,785 | -4,733 |
| Sinton | 5,200 | -5,148 |
| FrioMIDDLE FRIO (SINTON) | 5,400 | -5,348 |
| 5500 | 5,650 | -5,598 |
| 5900 Massive | 5,905 | -5,853 |
| Frio | 6,206 | -6,154 |
| JacksonJACKSON/YEGUA | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,456 | 5,463 | Perforated |
| 5,470 | 5,479 | Perforated |
| 5,483 | 5,490 | Perforated |
| 5,904 | 5,910 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,507 | 13.5 | 600 S |
| 5.5 | 6,206 | 8.75 | 1,235 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Oct 22, 2019 | Aug 8, 2019 | — |
| 00 | Aug 14, 2018 | Aug 14, 2018 | — |
| 00 | Jun 8, 2015 | Jan 10, 2014 | — |
| 00 | Jun 4, 2013 | Mar 7, 2013 | — |
| 00 | Jul 30, 2004 | Jun 2, 2004 | Yes |
| 00 | Jun 29, 2004 | — | — |
| 00 | Aug 29, 2003 | Aug 19, 2003 | Yes |
| 00 | Aug 25, 2003 | — | — |
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 42-391-32502 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-32502 → 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.
Tom Oconnor (5800SD) Fld. Unit42-391-02036
0.3 KM · Quintana Pet. Corp. · Section with this well →
| Lagarto | 1,500 | -1,452 |
| Surface SD Clay | 1,500 | -1,452 |
| Oakville | 2,750 | -2,702 |
| Catahoula | 3,300 | -3,252 |
| Anahuac | 4,100 | -4,052 |
| Catahoula | 4,100 | -4,052 |
| Anahuac | 4,365 | -4,317 |
| Frio | 4,365 | -4,317 |
13 TOPS · FIRST 8
Tom Oconnor (5800SD) Fld. Unit42-391-01579
0.4 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 |
Tom O'Connor (5800 SD) FLD Unit42-391-01553
0.7 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 | — | |
| NO Change | — | |
| Jackson | — |
Tom O'Connor (5800 SD) FLD Unit42-391-01552
0.7 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 -D-42-391-33233
0.9 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,691 | -3,644 |
| Frio | 4,413 | -4,366 |
| Gretta | 4,661 | -4,614 |
| Jackson | — |
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. Unit42-391-33234
0.9 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,721 | -3,674 |
| Frio | 4,416 | -4,369 |
| Sinton | 5,127 | -5,080 |
| Jackson | — |
Tom Oconnor (5800 SD) Fld. Unit42-391-01551
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 | 3,655 | -3,607 |
| Catahoula | 4,100 | -4,052 |
| Anahuac | 4,100 | -4,052 |
| Anahuac | 4,230 | -4,182 |
| Frio | 4,365 | -4,317 |
18 TOPS · FIRST 8
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 4.48M
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000106822 | H-1 Injection | Active | 10,000 | 2,000 | 5,400–5,960 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/39132502, documented in the API reference.