WELL · 42-391-00439 · DISTRICT 2
Maude Williams et al 'A' #31
Refugio County · Vertical
Maude Williams ET AL 'A' #31 (API 42-391-00439) is a permitted well in Refugio County filed by Hilcorp Energy Company; no completion report is on file yet.
The RRC has issued 6 drilling permits (amended once) between 1978 and 2016, permitted to 5,925 ft.
Completion filings report 7 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.
Its 4 leases have reported 22.8M barrels of oil and 14.9M mcf of gas since January 1993, last reporting in July 2026. The leases carry 597 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 | none |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Hilcorp Energy CompanyJun 7, 2016 |
- 5,925
- total depth, ft
- 7
- permits on file
- Jun 7, 2016
- last permit issued
- —
- completed
- 22.8M
- cumulative oil, bbl
- 14.9M
- 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 597 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Maude Williams et al 'A' G-2-281164 | Greta (L- 8) | 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 |
| Williams, Maude et al -A- O-2-9170 | Tom Oconnor (5425 Sand) | Hilcorp Energy Company | 2 | 143 | 2.51K | Oct 2007 – Jul 2026 |
| — G-2-96490 | — | — | 0 | 0 | 0 | — |
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 |
|---|---|---|---|---|---|---|
| 816103-99 | Recompletion | Hilcorp Energy Company | Jun 6, 2016 | Jun 7, 2016 | Sep 13, 2016 | 5,925 |
| 685567-99 | Recompletion | Hilcorp Energy Company | Sep 28, 2009 | Sep 29, 2009 | — | 5,925 |
| 645527-99 | Recompletion | Hilcorp Energy Company | Sep 4, 2007 | Sep 18, 2007 | Oct 24, 2007 | 5,925 |
| 355293-98 | Recompletion | Quintana Pet. Corp. | Nov 7, 1989 | Jan 19, 1989 | Apr 2, 1991 | 5,923 |
| 355293-99 | Recompletion | Quintana Pet. Corp. | Jan 18, 1989 | Jan 19, 1989 | — | 5,923 |
| 66613-99 | Recompletion | Quintana Pet. Corp. | Dec 12, 1979 | Dec 12, 1979 | — | 5,923 |
| 24496-99 | Recompletion | Quintana Pet. Corp. | May 17, 1978 | May 17, 1978 | — | 5,925 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-96490 | — | — | — | — |
| — | — G-2-281164 | — | — | — | — |
| — | — O-2-5280 | — | — | — | — |
| — | — O-2-9170 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 50 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| LagartoLARGARTO | 1,500 | -1,450 |
| LagartoLARGARTA | 1,801 | -1,751 |
| Oakville | 2,597 | -2,547 |
| Oakville | 2,750 | -2,700 |
| CatahoulaCATAHOULA(MIOCENE) | 3,300 | -3,250 |
| Catahoula | 3,623 | -3,573 |
| AnahuacANAHUAC(MIOCENE) | 4,100 | -4,050 |
| FrioFRIO-GRETA(OLIGOCENE) | 4,365 | -4,315 |
| Frio | 4,383 | -4,333 |
| FrioMIDDLE FRIO-(SINTON) | 5,000 | -4,950 |
| FrioLOWER FRIO (OLIGOCENE) | 5,880 | -5,830 |
| JacksonJACKSON/YEGUA | — | — |
| NO Change | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,266 | 2,272 | Perforated |
| 5,436 | 5,446 | Perforated |
| 5,470 | 5,478 | Perforated |
| 5,695 | 5,701 | Perforated |
| 5,861 | 5,865 | Perforated |
| — | 5,854 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,077 | 16 | 350 S |
| 2.375 | 5,444 | — | — |
| 2.375 | 5,660 | — | — |
| 5 | 5,923 | 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 28, 2016 | Oct 10, 2016 | — |
| 00 | Mar 5, 2008 | Nov 6, 2007 | Yes |
| 00 | Jan 25, 2008 | — | — |
| 00 | Jul 8, 1991 | Apr 25, 1991 | Yes |
| 00 | May 6, 1991 | — | — |
| 00 | Jan 12, 1984 | Sep 30, 1981 | — |
| 00 | Jan 12, 1984 | Nov 6, 1980 | — |
| 00 | Jan 12, 1984 | Jul 20, 1978 | — |
| 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 42-391-00439 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00439 → 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.
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/39100439, documented in the API reference.