WELL · 42-391-00438 · DISTRICT 2
Tom O'Connor (4150 Ft. Sd.) Unit #W830A
Refugio County · Vertical
Tom O'Connor (4150 FT. SD.) Unit #W830A (API 42-391-00438) is a disposal or injection well in Refugio County operated by Hilcorp Energy Company under an active UIC permit.
The RRC has issued 4 drilling permits (amended once) between 1983 and 2009, permitted to 5,962 ft.
Completion filings report 6 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.
Its 4 leases have reported 512K barrels of oil and 502K mcf of gas since January 1993, last reporting in July 2026. The leases carry 75 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit.
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 | none |
| Production reports | Hilcorp Energy Companythrough Jul 2025 |
| Latest permit | Hilcorp Energy CompanyMar 20, 2009 |
- 5,962
- total depth, ft
- 5
- permits on file
- Mar 20, 2009
- last permit issued
- —
- completed
- 512K
- cumulative oil, bbl
- 502K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- 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 4 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 2026 |
| Williams, Maude et al 'A' G-2-162397 | Tom Oconnor (4200) | Hilcorp Energy Company | 1 | 0 | 39K | Feb 1997 – Feb 2007 |
| Williams, Maude, Etal -A- O-2-5016 | Tom Oconnor (5800) | Hilcorp Energy Company | 5 | 0 | 0 | Jan 1993 – Nov 2004 |
| Williams, Maude et al "A" O-2-7881 | Tom Oconnor (5250) | Quintana Pet. Corp. | 1 | 882 | 2.09K | Jun 1993 – Apr 1997 |
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.Jun 1993 → Nov 2000
- 2Hilcorp Energy CompanyDec 2000 → Jul 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 679334-99 | Recompletion | Hilcorp Energy Company | Mar 11, 2009 | Mar 20, 2009 | Sep 23, 2004 | 5,926 |
| 456085-99 | Recompletion | Quintana Pet. Corp. | Dec 9, 1996 | Dec 12, 1996 | Feb 4, 1997 | 5,962 |
| 402296-98 | Recompletion | Quintana Pet. Corp. | May 20, 1993 | Aug 13, 1992 | Jun 15, 1993 | 5,962 |
| 402296-99 | Recompletion | Quintana Pet. Corp. | Aug 13, 1992 | Aug 13, 1992 | — | 5,962 |
| 218555-99 | Recompletion | Quintana Pet. Corp. | Oct 24, 1983 | Oct 26, 1983 | — | 5,926 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-162397 | — | — | — | — |
| — | — O-2-5016 | — | — | — | — |
| — | — O-2-7881 | — | — | — | — |
| — | — O-2-8874 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 50 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| LagartoLARGARTO | 1 | 49 |
| LagartoLARGARTO | 2,750 | -2,700 |
| Oakville | 2,750 | -2,700 |
| CatahoulaCATAHOULA (MIOCENE) | 3,300 | -3,250 |
| Oakville | 3,300 | -3,250 |
| AnahuacANAHUAC (MIOCENE) | 4,100 | -4,050 |
| CatahoulaCATAHOULA (MIOCENE) | 4,100 | -4,050 |
| AnahuacANAHUAC (MIOCENE) | 4,365 | -4,315 |
| FrioFRIO-GRETA (OLIGOCENE) | 4,365 | -4,315 |
| FrioFRIO-GRETA (OLIG) | 4,785 | -4,735 |
| FrioMIDDLE FRIO (SINTON) | 5,000 | -4,950 |
| FrioMIDDLE FRIO (SINTON) | 5,400 | -5,350 |
| FrioLOWER FRIO (OLIGOCENE) | 5,880 | -5,830 |
| FrioLOWER FRIO (OLIGOCENE) | 5,962 | -5,912 |
| NO Change | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,158 | 4,168 | Perforated |
| 4,184 | 4,198 | Perforated |
| 5,305 | 5,310 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,039 | 16 | 350 S |
| 5 | 5,924 | 8.75 | 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Apr 20, 2009 | Apr 18, 2006 | — |
| 00 | Mar 24, 2009 | — | — |
| 00 | Apr 29, 1997 | Mar 10, 1997 | Yes |
| 00 | Apr 11, 1997 | — | — |
| 00 | Oct 8, 1993 | Jun 29, 1993 | Yes |
| 00 | Jul 7, 1993 | — | — |
| 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 42-391-00438 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00438 → 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
- 1.4K
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000092826 | H-1 Injection | Active | 2,500 | 2,050 | 4,158–4,178 |
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/39100438, documented in the API reference.