TEXAS · WELLS · REFUGIO COUNTY · API 42-391-01796 · DISTRICT 02
Thomas O Connor D #4
Refugio County · Mary Ellen Oconnor (D-1) field · Vertical
Thomas O Connor D #4 (API 42-391-01796) is a plugged well in Refugio County, plugged July 7, 2023, last operated by Hilcorp Energy Company.
The RRC has issued one drilling permit, issued August 19, 2015, permitted to 5,964 ft.
Completion filings report 7 formation tops, including Surface Sand Clay, Lagarto, Oakville, Catahoula.
Its 5 leases have reported 71K barrels of oil and 250K mcf of gas since January 1993, last reporting in July 2026. The leases carry 10 wells, so these are lease totals, not this well alone.
Operator of record
- 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
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Aug 2015 |
| Latest permit | Hilcorp Energy CompanyAug 19, 2015 |
- 5,964
- total depth, ft
- 1
- permits on file
- Aug 19, 2015
- last permit issued
- Aug 14, 2015
- completed
- 71K
- cumulative oil, bbl
- 250K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 14, 2015
- Shut in
- —
- Plugged
- Jul 7, 2023
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 5 leases this well is completed on; they carry 10 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| O'Connor, Thomas, "D" O-2-1066 | Melon Creek | Hilcorp Energy Company | 6 | 71K | 211K | Jan 1993 – Jul 2026 |
| Thomas O'Connor 'D' O-2-11079 | Mary Ellen Oconnor (D-1) | Hilcorp Energy Company | 1 | 0 | 231 | Aug 2015 – Aug 2023 |
| Thomas O'Connor "D" G-2-250850 | Melon Creek | Hilcorp Energy Company | 1 | 0 | 14.4K | Jul 2009 – Aug 2015 |
| Thomas O'Connor "D" O-2-8858 | Melon Creek | Hilcorp Energy Company | 1 | 0 | 0 | May 2004 – Sep 2004 |
| O'Connor, Thomas, "D" G-2-184426 | Melon Creek | Hilcorp Energy Company | 1 | 0 | 24.3K | Jun 2001 – May 2004 |
No volumes reported on these leases in the last three years.
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 → Jun 2015
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 809264-99 | Recompletion | Hilcorp Energy Company | Aug 7, 2015 | Aug 19, 2015 | Aug 10, 2015 | 5,964 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 14, 2015 | Thomas O Connor D O-2-11079 | Mary Ellen Oconnor (D-1) | Hilcorp Energy Company | Plugged | — |
| Jul 24, 2009 | Thomas O Connor D G-2-250850 | Melon Creek | Hilcorp Energy Company | Plugged | — |
| Apr 27, 2004 | O Connor Thomas D O-2-1066 | Melon Creek | Hilcorp Energy Company | Plugged | — |
| Jun 8, 2001 | O Connor Thomas D G-2-184426 | Melon Creek | Hilcorp Energy Company | Plugged | — |
| — | Thomas O Connor D O-2-8858 | Melon Creek | Hilcorp Energy Company | Plugged | — |
| — | O Connor Thomas D O-2-1066 | Melon Creek | Hilcorp Energy Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 35 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Surface Sand Clay | 1,500 | -1,465 |
| LagartoLARGARTO | 2,750 | -2,715 |
| Oakville | 3,300 | -3,265 |
| Catahoula | 3,588 | -3,553 |
| CatahoulaCATAHOULA (MIOCENE) | 4,100 | -4,065 |
| AnahuacANAHUAC (MIOCENE) | 4,365 | -4,330 |
| Frio | 4,367 | -4,332 |
| FrioFRIO-GRETA (OLIG) | 4,785 | -4,750 |
| FrioMIDDLE FRIO (SINTON) | 5,400 | -5,365 |
| FrioLOWER FRIO (OLIG) | 5,964 | -5,929 |
| JacksonJACKSON/YEGUA | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,122 | 4,136 | Perforated |
| 5,678 | 5,692 | Perforated |
| 5,790 | 5,795 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,213 | 9.625 | 500 S |
| 10.75 | 1,213 | 14 | 500 S |
| 5 | 5,954 | 8.625 | 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 | Jan 29, 2016 | Sep 1, 2015 | — |
| 00 | Oct 27, 2009 | Aug 27, 2009 | — |
| 00 | Sep 16, 2009 | — | — |
| 00 | Jul 23, 2004 | May 5, 2004 | — |
| 00 | Jun 23, 2004 | — | — |
| 00 | Jun 21, 2004 | — | — |
| 00 | Dec 3, 2001 | Jul 12, 2001 | — |
| 00 | Sep 25, 2001 | — | — |
| 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 42-391-01796 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-01796 → 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/39101796, documented in the API reference.