WELL · 42-391-01159 · DISTRICT 2
O'Connor, Thomas -C- #4G
Refugio County · Vertical
O'Connor, Thomas -C- #4G (API 42-391-01159) is a former disposal or injection well in Refugio County, last operated by Hilcorp Energy Company; its UIC permit is no longer active.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 10 drilling permits (amended twice) between 1978 and 2026, permitted to 5,980 ft.
Completion filings report 7 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.
Its 4 leases have reported 28M barrels of oil and 19.2M mcf of gas since January 1993, last reporting in July 2026. The leases carry 705 wells, so these are lease totals, not this well alone.
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 CompanyJul 22, 2026 |
- 5,980
- total depth, ft
- 12
- permits on file
- Jul 22, 2026
- last permit issued
- —
- completed
- 28M
- cumulative oil, bbl
- 19.2M
- 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
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 4 leases this well is completed on; they carry 705 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| O'Connor, Thomas "C" G-2-267316 | Tom Oconnor (4200) | Hilcorp Energy Company | 1 | 0 | 189 | Mar 2012 – Jul 2026 |
| Oconnor, Thomas, -C- O-2-2587 | Tom Oconnor (5500 Sand) | Hilcorp Energy Company | 51 | 2.22M | 2.1M | Jan 1993 – Jul 2026 |
| O'Connor, Thomas -C- O-2-2876 | Tom Oconnor (5900 Sand) | Hilcorp Energy Company | 59 | 2.99M | 2.17M | 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 |
Oil, barrels lease total
Last 12 months 681,261 · prior 12 536,766(+27%)
Gas, mcf lease total
Last 12 months 117,915 · prior 12 84,330(+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 |
|---|---|---|---|---|---|---|
| 917064-99 | Recompletion | Hilcorp Energy Company | Jul 8, 2026 | Jul 22, 2026 | — | 5,980 |
| 727406-97 | Recompletion | Hilcorp Energy Company | Mar 19, 2012 | Nov 8, 2011 | Feb 24, 2012 | 5,980 |
| 727406-98 | Recompletion | Hilcorp Energy Company | Feb 24, 2012 | Nov 8, 2011 | — | 5,980 |
| 727406-99 | Recompletion | Hilcorp Energy Company | Nov 1, 2011 | Nov 8, 2011 | — | 5,980 |
| 634903-99 | Recompletion | Hilcorp Energy Company | Mar 8, 2007 | Mar 15, 2007 | Apr 13, 2007 | 5,980 |
| 515806-99 | Recompletion | Hilcorp Energy Company | Dec 4, 2001 | Dec 6, 2001 | May 10, 2002 | 5,980 |
| 483197-99 | Recompletion | Quintana Pet. Corp. | Mar 10, 1999 | Apr 6, 1999 | Feb 11, 1999 | 5,980 |
| 391689-99 | Recompletion | Quintana Pet. Corp. | Sep 6, 1991 | Nov 19, 1991 | Oct 4, 1991 | 5,980 |
| 366774-99 | Recompletion | Quintana Pet. Corp. | Nov 21, 1989 | Jan 10, 1990 | — | 5,980 |
| 289153-99 | Recompletion | Quintana Pet. Corp. | Sep 19, 1985 | Nov 5, 1985 | — | 5,980 |
| 254011-99 | Recompletion | Quintana Pet. Corp. | Sep 19, 1984 | Oct 9, 1984 | — | 5,980 |
| 15357-99 | Recompletion | Quintana Pet. Corp. | Jan 3, 1978 | Jan 3, 1978 | — | 5,980 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-267316 | — | — | — | — |
| — | — O-2-2587 | — | — | — | — |
| — | — O-2-2587 | — | — | — | — |
| — | — O-2-2876 | — | — | — | — |
| — | — O-2-2876 | — | — | — | — |
| — | — O-2-5280 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 55 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| LagartoLARGARTO | 1,500 | -1,445 |
| LagartoLARGARTO | 2,750 | -2,695 |
| Oakville | 2,750 | -2,695 |
| CatahoulaCATAHOULA (MIOCENE) | 3,300 | -3,245 |
| Oakville | 3,300 | -3,245 |
| AnahuacANAHUAC (MIOCENE) | 4,100 | -4,045 |
| CatahoulaCATAHOULA (MIOCENE) | 4,100 | -4,045 |
| AnahuacANAHUAC (MIOCENE) | 4,365 | -4,310 |
| Fri-Greta (Oligocene) | 4,365 | -4,310 |
| FrioFRIO-GRETA (OLIGOCENE) | 4,365 | -4,310 |
| FrioFRIO-GRETA (OLIG) | 4,785 | -4,730 |
| FrioMIDDLE FRIO (SINTON) | 5,000 | -4,945 |
| FrioMIDDLE FRIO (SINTON) | 5,400 | -5,345 |
| FrioLOWER FRIO (OLIGOCENE) | 5,880 | -5,825 |
| Frio | 5,980 | -5,925 |
| FrioFRIO DISPOSAL | 5,980 | -5,925 |
| FrioLOWER FRIO (OLIG) | 5,980 | -5,925 |
| NO Change | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,120 | 4,132 | Perforated |
| 5,041 | 5,057 | Perforated |
| 5,152 | 5,165 | Perforated |
| 5,223 | 5,233 | Perforated |
| 5,473 | 5,481 | Perforated |
| 5,486 | 5,490 | Perforated |
| 5,518 | 5,523 | Perforated |
| 5,683 | 5,689 | Perforated |
| 5,785 | 5,790 | Perforated |
| 5,800 | 5,808 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,235 | 14.75 | 350 S |
| 9.875 | 5,652 | 7 | 750 S |
| 7 | 5,952 | 9.875 | 750 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 1, 2026 | Sep 18, 2026 | — |
| 00 | Apr 24, 2013 | Apr 12, 2012 | — |
| 00 | Jun 28, 2007 | Apr 30, 2007 | Yes |
| 00 | Jun 12, 2007 | — | — |
| 00 | Jul 29, 2002 | May 30, 2002 | Yes |
| 00 | Jun 21, 2002 | — | — |
| 00 | May 14, 1999 | Apr 22, 1999 | Yes |
| 00 | May 11, 1999 | Jan 15, 1992 | Yes |
| 00 | Mar 20, 1992 | Jan 15, 1992 | Yes |
| 00 | Mar 30, 1990 | Jan 24, 1990 | Yes |
| 00 | Mar 21, 1990 | — | — |
| 00 | Nov 26, 1985 | Aug 9, 1985 | — |
| 00 | Nov 15, 1985 | — | — |
| 00 | Jan 12, 1984 | Jan 9, 1978 | — |
| 00 | 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 42-391-01159 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-01159 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000124883 | H-1 Injection | Not activated | 15,000 | 2,200 | 4,450–4,850 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/39101159, documented in the API reference.