WELL · 42-391-31239 · DISTRICT 2
Williams, Maude et al 'C' #4
Refugio County · Vertical
Williams, Maude ET AL 'C' #4 (API 42-391-31239) is a disposal or injection well in Refugio County operated by Quintana Pet. Corp. under an active UIC permit.
The RRC has issued 3 drilling permits between 1978 and 2000, permitted to 8,127 ft.
Completion filings report 7 formation tops, including Lagarto, Surface Sand Clay, Oakville, Catahoula.
Its 4 leases have reported 1.09M barrels of oil and 890K mcf of gas since January 1993, last reporting in July 2026. The leases carry 49 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit.
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 | none |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Quintana Pet. Corp.Aug 31, 2000 |
- 8,127
- total depth, ft
- 3
- permits on file
- Aug 31, 2000
- last permit issued
- —
- completed
- 1.09M
- cumulative oil, bbl
- 890K
- 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 49 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| 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 -C- O-2-1547 | Tom Oconnor | Hilcorp Energy Company | 7 | 68K | 70.6K | Jan 1993 – Aug 2018 |
| Williams, Maude et al "C" O-2-5979 | Tom Oconnor (5800) | Hilcorp Energy Company | 2 | 0 | 0 | Jan 1993 – Mar 2007 |
| Williams, Maude et al "C" O-2-8549 | Tom O'Connor (5730, East) | Quintana Pet. Corp. | 2 | 3.79K | 4.04K | Feb 2000 – Dec 2000 |
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 |
|---|---|---|---|---|---|---|
| 497769-99 | Field transfer | Quintana Pet. Corp. | Jul 28, 2000 | Aug 31, 2000 | Feb 24, 1978 | 8,127 |
| 80311-99 | Recompletion | Quintana Pet. Corp. | May 6, 1980 | May 6, 1980 | — | 6,914 |
| 18924-99 | Drill | Quintana Pet. Corp. | Feb 24, 1978 | Feb 24, 1978 | Jun 16, 1978 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-1547 | — | — | — | — |
| — | — O-2-1547 | — | — | — | — |
| — | — O-2-5979 | — | — | — | — |
| — | — O-2-5979 | — | — | — | — |
| — | — O-2-8549 | — | — | — | — |
| — | — O-2-8569 | — | — | — | — |
| — | — O-2-8569 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 54 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| LagartoLARGARTO | 1,500 | -1,446 |
| Surface Sand Clay | 1,500 | -1,446 |
| LagartoLARGARTO | 2,750 | -2,696 |
| Oakville | 2,750 | -2,696 |
| CatahoulaCATAHOULA (MIOCENE) | 3,300 | -3,246 |
| Oakville | 3,300 | -3,246 |
| Catahoula | 3,725 | -3,671 |
| AnahuacANAHUAC (MIOCENE) | 4,100 | -4,046 |
| CatahoulaCATAHOULA (MIOCENE) | 4,100 | -4,046 |
| AnahuacANAHUAC (MIOCENE) | 4,365 | -4,311 |
| FrioFRIO GRETA (OLIGOCENE) | 4,365 | -4,311 |
| FrioFRIO-GRETA (OLIGOCENE) | 4,365 | -4,311 |
| Frio | 4,468 | -4,414 |
| FrioFRIO-GRETA (OLIG) | 4,785 | -4,731 |
| FrioMIDDLE FRIO (SINTON) | 5,000 | -4,946 |
| FrioMIDDLE FRIO (SINTON) | 5,400 | -5,346 |
| FrioLOWER FRIO (OLIGOCENE) | 5,880 | -5,826 |
| FrioLOWER FRIO (OLIG) | 8,127 | -8,073 |
| JacksonJACKSON/YEGUA | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,878 | 5,888 | Perforated |
| 5,880 | 5,886 | Perforated |
| 5,929 | 5,939 | Perforated |
| 6,073 | 6,077 | Perforated |
| — | 5,886 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,554 | 13.75 | 740 S |
| 5.5 | 5,914 | 8.75 | 1,500 S |
| 1.5 | 5,914 | — | — |
| 1.5 | 6,045 | — | — |
| 5.5 | 6,314 | 8.75 | 1,500 S |
| 5.5 | 6,914 | 8.75 | 1,500 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 | Mar 25, 2020 | Oct 28, 2019 | — |
| 00 | Mar 19, 2007 | Nov 1, 2006 | — |
| 00 | Sep 10, 2003 | Jul 10, 2003 | — |
| 00 | Aug 5, 2003 | Oct 17, 1986 | — |
| 00 | Jan 8, 2001 | Jun 26, 2000 | — |
| 00 | Nov 28, 2000 | Oct 17, 1986 | — |
| 00 | Sep 13, 2000 | Oct 17, 1986 | — |
| 00 | Sep 13, 2000 | Oct 20, 1980 | — |
| 00 | Oct 28, 1986 | Oct 17, 1986 | — |
| 00 | Jan 12, 1984 | Oct 20, 1980 | — |
| 00 | Jan 12, 1984 | Jul 28, 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 42-391-31239 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-31239 → 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
- 4.44M
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000093173 | H-1 Injection | Active | 5,000 | 2,000 | 5,870–5,935 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 17,068(-100%)
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/39131239, documented in the API reference.