TEXAS · WELLS · REFUGIO COUNTY · API 42-391-03788 · DISTRICT 02
Tom O Connor (4150 Ft. Sd.) Unit #78
Refugio County · Tom O Connor (4150) field · Shut In · Vertical
Tom O Connor (4150 FT. SD.) Unit #78 (API 42-391-03788) is a well in Refugio County operated by Hilcorp Energy Company, completed August 20, 1984 and listed as shut in on the RRC schedule, shut in December 1, 2024.
The RRC has issued 2 drilling permits between 1983 and 1984, permitted to 4,515 ft.
It was permitted by Quintana Pet. Corp. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 6 formation tops, including Recent (Water Sands), Lagarto, Oakville, Catahoula.
Its 2 leases have reported 613K barrels of oil and 1.35M mcf of gas since January 1993, last reporting volume in July 2025. The leases carry 75 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Quintana Pet. Corp.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,458
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Jul 2025 |
| Latest permit | Quintana Pet. Corp.Mar 8, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,515
- total depth, ft
- 2
- permits on file
- Mar 8, 1984
- last permit issued
- Aug 20, 1984
- completed
- 613K
- cumulative oil, bbl
- 1.35M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2025
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 20, 1984
- Shut in
- Dec 1, 2024
- 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 2 leases this well is completed on; they carry 75 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| 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 Fannie V.W. Mrs O-2-6800 | Tom O'Connor (4150) | Hilcorp Energy Company | 7 | 101K | 892K | Jan 1993 – May 2004 |
Oil, barrels lease total
Last 12 months 102 · prior 12 4,813(-98%)
Gas, mcf lease total
Last 12 months 86 · prior 12 366(-77%)
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 → Jul 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 231676-99 | Recompletion | Quintana Pet. Corp. | Mar 5, 1984 | Mar 8, 1984 | — | 4,515 |
| 220033-99 | Recompletion | Quintana Pet. Corp. | Oct 28, 1983 | Nov 7, 1983 | — | 4,515 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 20, 1984 | Tom O Connor (4150 Ft. Sd.) Unit O-2-8874 | Tom O Connor (4150) | Hilcorp Energy Company | Shut In · shut in Dec 1, 2024 | 4,515 |
| Aug 20, 1984 | Heard Fannie V.W. Mrs O-2-6800 | Tom O Connor (4150) | Hilcorp Energy Company | Not on Schedule | — |
| — | Heard Fannie V. W. Mrs. O-2-2546 | Tom Oconnor (4500 Greta Mass.) | Hilcorp Energy Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 52 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,099 | 4,112 | Perforated |
| — | 4,394 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,022 | 12.25 | 400 S |
| 4.5 | 4,508 | 6.75 | 650 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 | Sep 9, 2004 | Aug 30, 1984 | — |
| 00 | Nov 26, 1984 | Aug 30, 1984 | — |
| 00 | Nov 15, 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 42-391-03788 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-03788 → 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/39103788, documented in the API reference.