WELL · 42-391-31798 · DISTRICT 2
Williams, Maude Etal -A- #D136
Refugio County · Vertical
Williams, Maude Etal -A- #D136 (API 42-391-31798) 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 between 1984 and 2022, permitted to 4,700 ft.
Completion filings report 8 formation tops, including Recent (Water Sands), Lagarto, Oakville, Catahoula.
Its 2 leases have reported 11.1M barrels of oil and 181M mcf of gas since January 1993, last reporting in July 2026. The leases carry 177 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 1.99M barrels injected in the 12 months reported through November 2025; TexNet located 0 M2+ earthquakes within 10 km over the last two years.
Operator of record
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,454 permits on file · (713) 209-2411
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 3, 2022 |
- 4,700
- total depth, ft
- 4
- permits on file
- Jun 3, 2022
- last permit issued
- —
- completed
- 11.1M
- cumulative oil, bbl
- 181M
- 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
28.411292, -97.081359
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Refugio County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 177 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Williams, Maude et al "A" G-2-161854 | Lake Pasture (H-434) | Hilcorp Energy Company | 1 | 0 | 2.1M | Dec 1996 – Jul 2026 |
| Williams, Maude, Etal -A- O-2-2533 | Lake Pasture (H-440 Sand) | Hilcorp Energy Company | 176 | 11.1M | 179M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 215,922 · prior 12 375,114(-42%)
Gas, mcf lease total
Last 12 months 145,364 · prior 12 201,489(-28%)
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 |
|---|---|---|---|---|---|---|
| 880523-99 | Recompletion | Hilcorp Energy Company | May 25, 2022 | Jun 3, 2022 | — | 4,665 |
| 827986-99 | Recompletion | Hilcorp Energy Company | Jun 19, 2017 | Jun 28, 2017 | — | 4,665 |
| 456144-99 | Recompletion | Quintana Pet. Corp. | Dec 10, 1996 | Dec 17, 1996 | Dec 11, 1996 | 4,665 |
| 253071-99 | Drill | Quintana Pet. Corp. | Oct 24, 1984 | Oct 1, 1984 | Nov 10, 1984 | 4,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-161854 | — | — | — | — |
| — | — O-2-2533 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 55 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Recent (Water Sands) | 1 | 54 |
| LagartoLARGARTA | 1,400 | -1,345 |
| LagartoLARGARTO | 1,500 | -1,445 |
| Oakville | 2,750 | -2,695 |
| Oakville | 2,800 | -2,745 |
| Catahoula | 3,300 | -3,245 |
| CatahoulaCATAHOULA (MIOCENE) | 3,300 | -3,245 |
| Catahoula | 3,500 | -3,445 |
| Anaguac | 4,050 | -3,995 |
| AnahuacANAHUAC (MIOCENE) | 4,100 | -4,045 |
| Greta | 4,300 | -4,245 |
| FrioFRIO-GRETA (OLIGOCENE) | 4,365 | -4,310 |
| FrioLOWER FRIO (OLIGOCENE) | — | — |
| FrioMIDDLE FRIO (SINTON) | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,866 | 3,877 | Perforated |
| 3,902 | 3,930 | Perforated |
| 4,382 | 4,396 | Perforated |
| 4,491 | 4,495 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,533 | 13.5 | 845 S |
| 5.5 | 4,661 | 8.5 | 905 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 | Jun 5, 2023 | Mar 1, 2023 | — |
| 00 | Apr 16, 1997 | Jan 6, 1997 | Yes |
| 00 | Mar 7, 1997 | — | — |
| 00 | Jan 22, 1985 | Jan 3, 1985 | — |
| 00 | Jan 11, 1985 | — | — |
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 42-391-31798 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-31798 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Williams, Maude et al "A"42-391-31963
0.3 KM · Quintana Pet. Corp. · Section with this well →
| Recent (Water-Sands) | 1 | 53 |
| Lagarta | 1,400 | -1,346 |
| L-167 | 1,682 | -1,628 |
| L-206 | 2,083 | -2,029 |
| E-261 | 2,642 | -2,588 |
| Oakville | 2,800 | -2,746 |
| Catahoula | 3,500 | -3,446 |
| Anaguac | 4,050 | -3,996 |
12 TOPS · FIRST 8
Williams, Maude Etal -A-42-391-33279
0.3 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,300 | -3,249 |
| Greta | 4,265 | -4,214 |
| Frio | 5,000 | -4,949 |
| Jackson | — |
Williams, Maude Etal -A-42-391-33293
0.3 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,300 | -3,249 |
| Catahoula | 3,300 | -3,249 |
| Greta | 4,265 | -4,214 |
| Frio | 5,000 | -4,949 |
| Frio | 5,000 | -4,949 |
| Jackson | — | |
| Jackson | — |
Williams, Maude Etal -A-42-391-33292
0.3 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,300 | -3,249 |
| Greta | 4,265 | -4,214 |
| Frio | 5,000 | -4,949 |
| Jackson | — |
Williams, Maude Etal -A-42-391-33314
0.4 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,300 | -3,249 |
| Frio | 4,362 | -4,311 |
| Jackson | — |
Williams, Maude Etal -A42-391-33313
0.4 KM · Hilcorp Energy Company · Section with this well →
| Catahoula | 3,609 | -3,557 |
| Frio | 4,265 | -4,213 |
| Frio | 4,265 | -4,213 |
| Jackson | 5,098 | -5,046 |
Williams, Maude Etal -A-42-391-00282
0.5 KM · Hilcorp Energy Company · Section with this well →
| Surface Sand Clay | 1,500 | -1,444 |
| Largeto | 2,750 | -2,694 |
| Lagarto | 2,750 | -2,694 |
| Oakville | 3,300 | -3,244 |
| Catahoula | 3,673 | -3,617 |
| Catahoula | 4,100 | -4,044 |
| Anahuac | 4,365 | -4,309 |
| Frio | 4,367 | -4,311 |
13 TOPS · FIRST 8
Williams, Maude Etal -A-42-391-04013
0.5 KM · Hilcorp Energy Company · Section with this well →
| Lagarto | 1,500 | -1,447 |
| Oakville | 2,750 | -2,697 |
| Catahoula | 3,300 | -3,247 |
| Anahuac | 4,100 | -4,047 |
| Frio | 4,365 | -4,312 |
| Frio | 4,365 | -4,312 |
| Frio | 5,000 | -4,947 |
| Frio | 5,400 | -5,347 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 1.99M
- bbl, last 12 reported months
- 5.6M
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000125579 | W-14 Disposal | Active | 15,000 | 1,515 | 3,130–4,050 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 1,990,778 · prior 12 2,459,662(-19%)
TexNet catalog via USGS
Seismicity near this well
- 0
- M2+ events within 10 km, last 2 years
- —
- largest
A proximity count, not an attribution. How to read it →
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/39131798, documented in the API reference.