WELL · 42-391-32944 · DISTRICT 2

Maude Williams et al C #8

N

Refugio County · Tom Oconnor (5800) field  · Vertical

Maude Williams ET AL C #8 (API 42-391-32944) is a well in Refugio County operated by Hilcorp Energy Company, completed June 23, 2010.

The RRC has issued 3 drilling permits between 2010 and 2017, permitted to 6,400 ft.

Completion filings report 6 formation tops, including Lagarto, Oakville, Catahoula, Ananhuac.

Its 3 leases have reported 133K barrels of oil and 109K mcf of gas since January 1993, last reporting in July 2026. The leases carry 9 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 376K barrels injected in the 12 months reported through September 2025; TexNet located 0 M2+ earthquakes within 10 km over the last two years.

Operator of record

Hilcorp Energy Company

Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,453 permits on file · (713) 209-2411

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Jul 2016
Latest permitHilcorp Energy CompanyOct 13, 2017
6,400
total depth, ft
3
permits on file
Oct 13, 2017
last permit issued
Jun 23, 2010
completed
133K
cumulative oil, bbl
109K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jun 23, 2010
Shut in
—
Plugged
—

Surface location

28.387727, -97.110418

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 3 leases this well is completed on; they carry 9 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Williams, Maude et al -C- O-2-11481Tom Oconnor (5800)Hilcorp Energy Company100Jan 2018 – Jul 2026
Williams, Maude et al -C- O-2-1547Tom OconnorHilcorp Energy Company768K70.6KJan 1993 – Aug 2018
Maude Williams et al "C" O-2-9440Tom Oconnor (5800)Hilcorp Energy Company164.8K38.3KJun 2010 – Feb 2017

No volumes reported on these leases in the last three years.

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Quintana Pet. Corp.Jan 1993 → Jan 2000
  2. 2Hilcorp Energy CompanyOct 2005 → Jul 2016

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
831733-99RecompletionHilcorp Energy CompanyOct 6, 2017Oct 13, 2017Jan 15, 20186,200
818078-99RecompletionHilcorp Energy CompanyAug 26, 2016Sep 15, 2016Aug 31, 20166,200
689931-99DrillHilcorp Energy CompanyJan 19, 2010Jan 29, 2010Jun 16, 20106,400

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-1547————
—— O-2-9440————
—— O-2-11481————

Formation tops

As filed on W-2/G-1. Subsea from 56 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO2,750-2,694
Oakville3,300-3,244
Catahoula3,693-3,637
CatahoulaCATAHOULA (MIOCENE)4,100-4,044
Ananhuac4,365-4,309
Frio4,437-4,381
FrioFRIO-GRETA (OLIGOCENE)4,785-4,729
FrioMIDDLE FRIO (SINTON)5,400-5,344
FrioLOWER FRIO (OLIGOCENE)6,200-6,144
JacksonJACKSON/YEGUA——

Perforations

Perforated and open-hole intervals.

FromToType
5,8705,878Perforated
5,8965,904Perforated
5,8995,904Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,46512.25820 S
5.56,2008.751,860 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Aug 14, 2018Aug 14, 2018—
00Feb 17, 2017Jan 18, 2017—
00Sep 14, 2010Jul 12, 2010Yes
00Sep 2, 2010——

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.

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.

Open the cross-section →

Williams, Maude et al 'C'42-391-00501

0.2 KM · Hilcorp Energy Company · Section with this well →

Catahoula3,685-3,631
Frio4,433-4,379
Jackson—

Maude Williams et al 'A'42-391-00480

0.8 KM · Hilcorp Energy Company · Section with this well →

Catahoula3,639-3,585
Frio4,423-4,369
Jackson—

Tom O'CONNOR(5800 Sd)fld Unit42-391-00451

0.8 KM · Hilcorp Energy Company · Section with this well →

Surface SD Clay1,500-1,446
Lagarto2,750-2,696
Oakville3,300-3,246
Catahoula3,604-3,550
Anahuac4,365-4,311
Frio4,398-4,344
Frio4,785-4,731
Frio5,400-5,346

11 TOPS · FIRST 8

Williams, Maude et al 'A'42-391-00477

0.8 KM · Quintana Pet. Corp. · Section with this well →

Surface Sand Clay1,500-1,434
Lagarto2,750-2,684
Oakville3,300-3,234
Catahoula4,100-4,034
Anahuac4,365-4,299
Frio4,785-4,719
Frio5,400-5,334
Frio5,925-5,859

Williams, Maude et al "C"42-391-32627

0.8 KM · Hilcorp Energy Company · Section with this well →

Lagarto2,750-2,699
Oakville3,300-3,249
Catahola (Miocene)4,100-4,049
Ananhuac (Miocene)4,365-4,314
Frio4,785-4,734
Frio5,400-5,349
Frio—
NO Change—

Williams, Maude et al -A-42-391-00455

1.1 KM · Hilcorp Energy Company · Section with this well →

Surface Sand Clay1,500-1,445
Lagarto2,750-2,695
Oakville3,300-3,245
Catahoula3,592-3,537
Catahoula4,100-4,045
Catahoula4,100-4,045
Anahuac4,365-4,310
Frio4,385-4,330

12 TOPS · FIRST 8

Williams, Maude, et al -A-42-391-00488

1.2 KM · Quintana Pet. Corp. · Section with this well →

Lagarto1,500-1,445
Surface Sand Clay1,500-1,445
Oakville2,750-2,695
Catahoula3,300-3,245
Catahoula3,612-3,557
Catahoula4,100-4,045
Anahuac4,100-4,045
Anahuac4,365-4,310

18 TOPS · FIRST 8

Williams, Maude et al "A"42-391-00442

1.2 KM · Quintana Pet. Corp. · Section with this well →

Lagarto2,750-2,699
Oakville3,300-3,249
Catahoula3,622-3,571
Catahoula4,100-4,049
Anahuac4,365-4,314
Frio4,399-4,348
Frio4,785-4,734
Frio5,400-5,349

10 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

376K
bbl, last 12 reported months
3.32M
bbl, all reported
Sep 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000115866H-1 InjectionActive10,0002,9405,880–5,940

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 375,896 · prior 12 732,146(-49%)

050K100K20242025

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/39132944, documented in the API reference.