TEXAS · WELLS · LA SALLE COUNTY · MUMME RANCH LEASE · API 42-283-32415 · DISTRICT 01

Mumme Ranch #30H

On schedule

La Salle County · Eagleville (Eagle Ford-1) field · Producing  · Horizontal

Mumme Ranch #30H (API 42-283-32415) is a horizontal well in La Salle County operated by Verdun Oil EF II LLC, completed May 28, 2011 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued January 14, 2011, permitted to 9,752 ft.

It was permitted by Carrizo Oil & Gas, Inc. and has since transferred to Verdun Oil EF II LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Carrizo, Austin Chalk, Eagle Ford.

Its lease has reported 1.89M barrels of oil and 3.95M mcf of gas since December 2010, last reporting volume in April 2026. The lease carries 12 wells, so these are lease totals, not this well alone.

Operator of record

Verdun Oil EF II LLC

Permitted by Carrizo Oil & Gas, Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Jan 26, 2026
Permits on file
48
Phone
(713) 337-9300

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleVerdun Oil EF II LLC
Production reportsVerdun Oil EF II LLCthrough Apr 2026
Latest permitCarrizo Oil & Gas, Inc.Jan 14, 2011

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

9,752
total depth, ft
2
permits on file
Jan 14, 2011
last permit issued
May 28, 2011
completed
1.89M
cumulative oil, bbl
3.95M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2010 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 28, 2011
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 12 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mumme Ranch O-1-15385Eagleville (Eagle Ford-1)Verdun Oil EF II LLC121.89M3.95MDec 2010 – Apr 2026

Oil, barrels lease total

Last 12 months 55,294 · prior 12 72,998(-24%)

020K40K202420252026

Gas, mcf lease total

Last 12 months 142,315 · prior 12 176,165(-19%)

020K40K202420252026

Wells named Mumme Ranch

Verdun Oil EF II LLC's other wells filed under this lease name in La Salle County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

  1. 1Carrizo Oil & Gas, Inc.Dec 2010 → Mar 2012
  2. 2Carrizo (Eagle Ford) LLCApr 2012 → Jan 2018
  3. 3EP Energy E&P Company, L.P.Feb 2018 → Apr 2022
  4. 4EP Energy E&P Company, LLCMay 2022 → Feb 2025
  5. 5Verdun Oil EF II LLCMar 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
708407-98DrillCarrizo Oil & Gas, Inc.Aug 9, 2011Jan 14, 2011Mar 12, 201111,000
708407-99DrillCarrizo Oil & Gas, Inc.Jan 12, 2011Jan 14, 2011Mar 11, 201111,000

Completions

CompletedLeaseFieldOperatorStatusDepth
May 28, 2011Mumme Ranch O-1-15385Eagleville (Eagle Ford-1)Verdun Oil EF II LLCProducing9,752

Formation tops

As filed on W-2/G-1. Subsea from 395 ft elevation.Download CSV →

FormationMD ftSubsea
CarrizoBASE OF CARRIZO3,500-3,105
Austin ChalkTOP AUSTIN CHALK9,055-8,660
Eagle FordTOP EAGLEFORD SHALE9,582-9,187

Perforations

Perforated and open-hole intervals.

FromToType
9,95914,527Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.753,97114.751,737 S
5.514,6528.752,115 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Dec 16, 2011Aug 29, 2011—
00Nov 3, 2011Jul 8, 2011Yes

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

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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/28332415, documented in the API reference.