WELL · 42-391-00472 · DISTRICT 2
Williams Maude et al A #12A
Refugio County · Tom Oconnor field · Vertical
Williams Maude ET AL A #12A (API 42-391-00472) is a well in Refugio County operated by Quintana Pet. Corp., completed April 5, 1995.
The RRC has issued one drilling permit, issued November 22, 1999, permitted to 5,923 ft.
Completion filings report 8 formation tops, including Lagarto, Surface Sand Clay, Oakville, Catahoula.
Its 6 leases have reported 1.18M barrels of oil and 1.2M mcf of gas since January 1993, last reporting in July 2026. The leases carry 76 wells, so these are lease totals, not this well alone.
Operator of record
Refugio, TX · P-5 Y, filed Jun 9, 2000 · 1,589 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Quintana Pet. Corp. |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Quintana Pet. Corp.Nov 22, 1999 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,923
- total depth, ft
- 1
- permits on file
- Nov 22, 1999
- last permit issued
- Apr 5, 1995
- completed
- 1.18M
- cumulative oil, bbl
- 1.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 5, 1995
- 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 6 leases this well is completed on; they carry 76 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Williams, Maude, Etal -A- O-2-1548 | Tom Oconnor | Hilcorp Energy Company | 25 | 160K | 372K | Jan 1993 – Jul 2026 |
| Tom O'Connor (5730 Ft. Sd.) Unit O-2-8569 | Tom O'Connor (5730, East) | Hilcorp Energy Company | 38 | 1.01M | 815K | Oct 2000 – Jul 2026 |
| Williams, Maude et al 'A' O-2-8521 | Tom O'Connor (5730, East) | Quintana Pet. Corp. | 11 | 6.26K | 13.4K | Feb 2000 – Dec 2000 |
| Maude Williams et al "A" O-2-8140 | Tom Oconnor | Quintana Pet. Corp. | 1 | 0 | 0 | Jan 1996 – Mar 1996 |
| Williams, Maude et al "A" G-2-154143 | Tom Oconnor | Quintana Pet. Corp. | 1 | 0 | 2.02K | Apr 1995 – Jan 1996 |
| — G-2-63690 | — | — | 0 | 0 | 0 | — |
Oil, barrels lease total
Last 12 months 13,727 · prior 12 22,176(-38%)
Gas, mcf lease total
Last 12 months 956 · prior 12 1,602(-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 |
|---|---|---|---|---|---|---|
| 489751-99 | Field transfer | Quintana Pet. Corp. | Nov 22, 1999 | Nov 22, 1999 | — | 5,923 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-63690 | — | — | — | — |
| — | — G-2-154143 | — | — | — | — |
| — | — O-2-1548 | — | — | — | — |
| — | — O-2-1548 | — | — | — | — |
| — | — O-2-8140 | — | — | — | — |
| — | — O-2-8521 | — | — | — | — |
| — | — O-2-8569 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 54 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lagarto | 1,500 | -1,446 |
| LagartoLARGARTO | 1,500 | -1,446 |
| Surface Sand Clay | 1,500 | -1,446 |
| LagartoLARGARTO | 2,750 | -2,696 |
| Oakville | 2,750 | -2,696 |
| CatahoulaCATAHOULA(MIOCEN) | 3,300 | -3,246 |
| CatahoulaCATAHOULA (MIOCENE) | 3,300 | -3,246 |
| CatahoulaCATAHOULA MIOCENE | 3,300 | -3,246 |
| Oakville | 3,300 | -3,246 |
| Catahoula | 3,654 | -3,600 |
| AnahuacANAHUAC (MIOCENE) | 4,100 | -4,046 |
| AnahuacANAHUAC MIOCENE | 4,100 | -4,046 |
| AnahuacANAHUAC(MIOCENE) | 4,100 | -4,046 |
| CatahoulaCATAHOULA (MIOCENE) | 4,100 | -4,046 |
| Anahauc (Miocene) | 4,365 | -4,311 |
| FrioFRIO GRETA MIOCENE | 4,365 | -4,311 |
| FrioFRIO-GRETA (OLIGOCENE) | 4,365 | -4,311 |
| FrioFRIO-GRETA(OLIGOCENE) | 4,365 | -4,311 |
| Frio | 4,433 | -4,379 |
| FrioFRIO-GRETA (OLIG) | 4,785 | -4,731 |
| FrioMIDDLE FRIO SINTON | 5,000 | -4,946 |
| FrioMIDDLE FRIO(SINTON) | 5,000 | -4,946 |
| FrioMIDDLE-FRIO (SINTON) | 5,000 | -4,946 |
| FrioMIDDLE FRIO (SINTON) | 5,400 | -5,346 |
| FrioLOWER FRIO (OLIGOCENE) | 5,854 | -5,800 |
| FrioLOWER FRIO OLIGOCENE | 5,854 | -5,800 |
| FrioLOWER FRIO (OLIGOCENE) | 5,880 | -5,826 |
| FrioLOWER FRIO (OLIG) | 5,923 | -5,869 |
| JacksonJACKSON/YEGUA | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,714 | 5,720 | Perforated |
| 5,715 | 5,720 | Perforated |
| 5,795 | 5,806 | Perforated |
| 5,814 | 5,826 | Perforated |
| 5,820 | 5,826 | Perforated |
| — | 5,826 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,187 | 12.25 | 350 S |
| 9.625 | 1,187 | 16 | 350 S |
| 5 | 5,911 | 8.75 | 500 S |
| 5 | 5,922 | 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 | Oct 1, 2020 | Sep 2, 2020 | — |
| 00 | Nov 28, 2000 | Dec 13, 1999 | — |
| 00 | May 3, 2000 | Dec 13, 1999 | — |
| 00 | Apr 12, 2000 | Jan 18, 1996 | — |
| 00 | May 6, 1996 | Jan 18, 1996 | — |
| 00 | Apr 11, 1996 | — | — |
| 00 | Mar 6, 1996 | — | — |
| 00 | Aug 10, 1995 | Apr 25, 1995 | — |
| 00 | Jun 1, 1995 | — | — |
| 00 | Apr 30, 1991 | Feb 28, 1991 | — |
| 00 | Mar 14, 1991 | — | — |
| 00 | Jan 12, 1984 | May 21, 1970 | — |
| 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 42-391-00472 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00472 → 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
- 0
- bbl, all reported
- —
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000100342 | H-1 Injection | Not activated | 5,000 | 2,800 | 5,795–5,826 |
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/39100472, documented in the API reference.