TEXAS · WELLS · REFUGIO COUNTY · API 42-391-31717 · DISTRICT 02
Tom O Connor (4150 Ft. Sd.) Unit #W528A
Refugio County · Tom O Connor (4150) field · Shut In · Vertical
Tom O Connor (4150 FT. SD.) Unit #W528A (API 42-391-31717) is a well in Refugio County operated by Hilcorp Energy Company, completed February 15, 2011 and listed as shut in on the RRC schedule, shut in January 1, 2017.
The RRC has issued 3 drilling permits between 1984 and 2011, permitted to 4,580 ft.
Completion filings report 7 formation tops, including Lagarto, Oakville, Catahoula, Anaguac.
Its 3 leases have reported 1.05M barrels of oil and 804K mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 85 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 CompanyJan 31, 2011 |
- 4,580
- total depth, ft
- 3
- permits on file
- Jan 31, 2011
- last permit issued
- Feb 15, 2011
- completed
- 1.05M
- cumulative oil, bbl
- 804K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 15, 2011
- Shut in
- Jan 1, 2017
- 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 3 leases this well is completed on; they carry 85 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Heard, Clement O-2-2523 | Tom Oconnor (4500 Greta Mass.) | Hilcorp Energy Company | 16 | 539K | 277K | 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 |
| Clement Heard G-2-205795 | Tom Oconnor (4200) | Hilcorp Energy Company | 1 | 0 | 66.1K | Dec 2004 – Oct 2010 |
Oil, barrels lease total
Last 12 months 2,380 · prior 12 8,222(-71%)
Gas, mcf lease total
Last 12 months 252 · prior 12 994(-75%)
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 |
|---|---|---|---|---|---|---|
| 708692-99 | Recompletion | Hilcorp Energy Company | Jan 18, 2011 | Jan 31, 2011 | — | 4,580 |
| 555883-99 | Recompletion | Hilcorp Energy Company | Jan 7, 2005 | Jan 7, 2005 | — | 4,580 |
| 232886-99 | Drill | Quintana Pet. Corp. | Mar 12, 1984 | Mar 20, 1984 | Mar 31, 1984 | 4,550 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 15, 2011 | Tom O Connor (4150 Ft. Sd.) Unit O-2-8874 | Tom O Connor (4150) | Hilcorp Energy Company | Shut In · shut in Jan 1, 2017 | 4,580 |
| Dec 21, 2004 | Clement Heard G-2-205795 | Tom Oconnor (4200) | Hilcorp Energy Company | Not on Schedule | — |
| Apr 16, 1984 | Heard Clement O-2-2523 | Tom Oconnor (4500 Greta Mass.) | Hilcorp Energy Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 58 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,082 | 4,086 | Perforated |
| 4,089 | 4,092 | Perforated |
| 4,108 | 4,121 | Perforated |
| 4,374 | 4,384 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,504 | 13.75 | 717 S |
| 5.5 | 4,536 | 8.75 | 950 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 | Jan 17, 2019 | Nov 1, 2018 | — |
| 00 | Apr 22, 2005 | Jan 24, 2005 | Yes |
| 00 | Feb 1, 2005 | — | — |
| 00 | Jun 4, 1984 | May 15, 1984 | — |
| 00 | May 23, 1984 | May 15, 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 42-391-31717 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-31717 → 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/39131717, documented in the API reference.