WELL · 42-391-03784 · DISTRICT 2
Tom Oconnor (5800 SD) Fld. Unit #36
Refugio County · Tom Oconnor (5800) field · Vertical
Tom Oconnor (5800 SD) Fld. Unit #36 (API 42-391-03784) is a well in Refugio County operated by Hilcorp Energy Company, completed April 25, 1984.
The RRC has issued 3 drilling permits between 1984 and 2016, permitted to 6,500 ft.
Completion filings report 6 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.
Its 3 leases have reported 22.8M barrels of oil and 15.1M mcf of gas since January 1993, last reporting in July 2026. The leases carry 596 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 | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Hilcorp Energy CompanyApr 20, 2016 |
- 6,500
- total depth, ft
- 3
- permits on file
- Apr 20, 2016
- last permit issued
- Apr 25, 1984
- completed
- 22.8M
- cumulative oil, bbl
- 15.1M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 25, 1984
- 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 3 leases this well is completed on; they carry 596 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Maude Williams, et al -B- G-2-143855 | Tom O'Connor (2830) | Hilcorp Energy Company | 1 | 0 | 136K | Jan 1993 – Jul 2026 |
| Maude Williams et al 'B' G-2-281674 | Tom Oconnor (2050) | Hilcorp Energy Company | 1 | 0 | 0 | Sep 2016 – 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 673,200 · prior 12 524,408(+28%)
Gas, mcf lease total
Last 12 months 117,526 · prior 12 83,712(+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 |
|---|---|---|---|---|---|---|
| 815085-99 | Recompletion | Hilcorp Energy Company | Apr 15, 2016 | Apr 20, 2016 | Sep 6, 2016 | 6,500 |
| 395056-99 | Drill | Quintana Pet. Corp. | Dec 13, 1991 | Dec 23, 1991 | Mar 27, 1992 | 6,500 |
| 258118-99 | Recompletion | Quintana Pet. Corp. | Nov 9, 1984 | Nov 19, 1984 | — | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-143855 | — | — | — | — |
| — | — G-2-281674 | — | — | — | — |
| — | — O-2-5280 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 57 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| LagartoLARGARTO | 1,500 | -1,443 |
| LagartoLARGARTO | 1,619 | -1,562 |
| Oakville | 2,664 | -2,607 |
| Oakville | 2,750 | -2,693 |
| CatahoulaCATAHOULA (MIOCENE) | 3,300 | -3,243 |
| Catahoula | 3,719 | -3,662 |
| AnahuacANAHUAC (MIOCENE) | 4,100 | -4,043 |
| FrioFRIO-GRETA (OLIGOCENE) | 4,365 | -4,308 |
| Frio | 4,471 | -4,414 |
| FrioMIDDLE FRIO (SINTON) | 5,000 | -4,943 |
| FrioLOWER FRIO (OLIGOCENE) | 5,880 | -5,823 |
| FrioLOWER FRIO(OLIGOCENE) | 5,880 | -5,823 |
| JacksonJACKSON/YEGUA | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,063 | 2,069 | Perforated |
| 2,834 | 2,839 | Perforated |
| 5,891 | 5,900 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,017 | 12.25 | 400 S |
| 4.5 | 6,004 | 6.75 | 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 27, 2017 | Sep 29, 2016 | — |
| 00 | Apr 29, 1993 | Oct 28, 1992 | Yes |
| 00 | Feb 10, 1993 | — | — |
| 00 | Jul 8, 1986 | Jun 24, 1986 | — |
| 00 | Jul 3, 1986 | Feb 5, 1985 | — |
| 00 | Jan 23, 1986 | Feb 5, 1985 | — |
| 00 | Jan 17, 1986 | — | — |
| 00 | Jan 12, 1984 | Aug 15, 1973 | — |
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 42-391-03784 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-03784 → 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
- 316K
- bbl, all reported
- Dec 1994
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000051626 | H-1 Injection | Canceled Feb 17, 1995 | 6,000 | 1,500 | 5,891–5,900 |
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/39103784, documented in the API reference.