TEXAS · WELLS · REFUGIO COUNTY · API 42-391-00840 · DISTRICT 02
Tom O Connor (4150 Ft. Sd.) Unit #W503A
Refugio County · Tom O Connor (4150) field · Shut In · Vertical
Tom O Connor (4150 FT. SD.) Unit #W503A (API 42-391-00840) is a well in Refugio County operated by Hilcorp Energy Company, completed May 20, 2010 and listed as shut in on the RRC schedule, shut in December 1, 2016.
The RRC has issued 6 drilling permits (amended once) between 1988 and 2010, permitted to 5,980 ft.
Completion filings report 6 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.
Its 5 leases have reported 25.8M barrels of oil and 17.5M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 705 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 Apr 2026 |
| Latest permit | Hilcorp Energy CompanyMay 6, 2010 |
- 5,980
- total depth, ft
- 7
- permits on file
- May 6, 2010
- last permit issued
- May 20, 2010
- completed
- 25.8M
- cumulative oil, bbl
- 17.5M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 20, 2010
- Shut in
- Dec 1, 2016
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 705 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Heard, Clement O-2-2585 | Tom Oconnor (5500 Sand) | Hilcorp Energy Company | 20 | 1.34M | 986K | Jan 1993 – Apr 2026 |
| Heard, Clement O-2-2873 | Tom Oconnor (5900 Sand) | Hilcorp Energy Company | 22 | 1.22M | 1.07M | Jan 1993 – Apr 2026 |
| Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Tom Oconnor (5800) | Hilcorp Energy Company | 594 | 22.8M | 14.9M | Jan 1993 – Apr 2026 |
| Tom O'Connor (4150 Ft. Sd.) Unit O-2-8874 | Tom O'Connor (4150) | Hilcorp Energy Company | 68 | 512K | 461K | Jun 2004 – Jul 2025 |
| Heard, Clement G-2-190830 | Tom Oconnor (5300, East) | Hilcorp Energy Company | 1 | 0 | 33.6K | Jun 2002 – Jan 2004 |
Oil, barrels lease total
Last 12 months 683,779 · prior 12 538,189(+27%)
Gas, mcf lease total
Last 12 months 118,474 · prior 12 85,152(+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 |
|---|---|---|---|---|---|---|
| 695309-99 | Recompletion | Hilcorp Energy Company | May 2, 2010 | May 6, 2010 | May 13, 2010 | 5,929 |
| 555560-98 | Recompletion | Hilcorp Energy Company | Oct 30, 2006 | Jan 7, 2005 | Mar 20, 2007 | 5,929 |
| 555560-99 | Recompletion | Hilcorp Energy Company | Dec 30, 2004 | Jan 7, 2005 | — | 5,929 |
| 520485-99 | Recompletion | Hilcorp Energy Company | May 30, 2002 | Jun 3, 2002 | Jun 24, 2002 | 5,929 |
| 453550-99 | Recompletion | Quintana Pet. Corp. | Oct 7, 1996 | Nov 5, 1996 | Jul 24, 1996 | 5,929 |
| 415499-99 | Recompletion | Quintana Pet. Corp. | Aug 30, 1993 | Oct 7, 1993 | — | 5,929 |
| 342763-99 | Recompletion | Quintana Pet. Corp. | Feb 17, 1988 | Mar 29, 1988 | — | 5,929 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 20, 2010 | Tom O Connor (4150 Ft. Sd.) Unit O-2-8874 | Tom O Connor (4150) | Hilcorp Energy Company | Shut In · shut in Dec 1, 2016 | 5,980 |
| Apr 13, 2007 | Heard Clement O-2-2585 | Tom Oconnor (5500 Sand) | Hilcorp Energy Company | Not on Schedule | — |
| Jun 26, 2002 | Heard Clement G-2-190830 | Tom Oconnor (5300 East) | Hilcorp Energy Company | Not on Schedule | — |
| Jul 26, 1996 | Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Tom Oconnor (5800) | Hilcorp Energy Company | Not on Schedule | — |
| Apr 18, 1988 | Heard Clement O-2-2873 | Tom Oconnor (5900 Sand) | Hilcorp Energy Company | Not on Schedule | — |
| Apr 7, 1983 | Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Tom Oconnor (5800) | Hilcorp Energy Company | Not on Schedule | — |
| — | Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Tom Oconnor (5800) | Hilcorp Energy Company | Not on Schedule | — |
| — | Heard Clement O-2-2585 | Tom Oconnor (5500 Sand) | Hilcorp Energy Company | Not on Schedule | — |
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 |
| FrioFRIO-GRETA (OLIGOCENE) | 4,365 | -4,310 |
| FrioFRIO-GRETA | 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 |
| FrioLOWER FRIO (OLIGOCENE) | 5,929 | -5,874 |
| NO Change | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,110 | 4,122 | Perforated |
| 5,288 | 5,310 | Perforated |
| 5,520 | 5,530 | Perforated |
| 5,534 | 5,537 | Perforated |
| 5,798 | 5,808 | Perforated |
| 5,893 | 5,898 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,034 | 16 | 250 S |
| 5 | 5,921 | 7.75 | 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Aug 17, 2010 | Jun 1, 2010 | Yes |
| 00 | Jul 13, 2010 | — | — |
| 00 | Jun 15, 2007 | Apr 24, 2007 | Yes |
| 00 | Jun 12, 2007 | — | — |
| 00 | Oct 31, 2002 | Jul 16, 2002 | Yes |
| 00 | Oct 10, 2002 | — | — |
| 00 | Mar 10, 1997 | Nov 22, 1996 | Yes |
| 00 | Feb 6, 1997 | May 25, 1988 | Yes |
| 00 | Sep 28, 1988 | May 25, 1988 | Yes |
| 00 | Sep 22, 1988 | — | — |
| 00 | Aug 29, 1984 | Feb 2, 1984 | — |
| 00 | Jan 12, 1984 | Feb 2, 1984 | — |
| 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 42-391-00840 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00840 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for 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/39100840, documented in the API reference.