TEXAS · WELLS · LA SALLE COUNTY · MUMME RANCH LEASE · API 42-283-32911 · DISTRICT 01
Mumme Ranch #41H
La Salle County · Eagleville (Eagle Ford-1) field · Shut In · Horizontal
Mumme Ranch #41H (API 42-283-32911) is a horizontal well in La Salle County operated by Verdun Oil EF II LLC, completed June 3, 2013 and listed as shut in on the RRC schedule, shut in December 1, 2023.
The RRC has issued one drilling permit (amended once), issued November 15, 2011, permitted to 9,668 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
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 schedule | Verdun Oil EF II LLC |
| Production reports | Verdun Oil EF II LLCthrough Apr 2026 |
| Latest permit | Carrizo Oil & Gas, Inc.Nov 15, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,668
- total depth, ft
- 2
- permits on file
- Nov 15, 2011
- last permit issued
- Jun 3, 2013
- 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
- Jun 3, 2013
- Shut in
- Dec 1, 2023
- 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.
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mumme Ranch O-1-15385 | Eagleville (Eagle Ford-1) | Verdun Oil EF II LLC | 12 | 1.89M | 3.95M | Dec 2010 – Apr 2026 |
Oil, barrels lease total
Last 12 months 55,294 · prior 12 72,998(-24%)
Gas, mcf lease total
Last 12 months 142,315 · prior 12 176,165(-19%)
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 wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Carrizo Oil & Gas, Inc.Dec 2010 → Mar 2012
- 2Carrizo (Eagle Ford) LLCApr 2012 → Jan 2018
- 3EP Energy E&P Company, L.P.Feb 2018 → Apr 2022
- 4EP Energy E&P Company, LLCMay 2022 → Feb 2025
- 5Verdun Oil EF II LLCMar 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 728162-98 | Drill | Carrizo Oil & Gas, Inc. | Feb 22, 2012 | Nov 15, 2011 | Feb 18, 2012 | 11,000 |
| 728162-99 | Drill | Carrizo Oil & Gas, Inc. | Nov 11, 2011 | Nov 15, 2011 | Dec 4, 2011 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 3, 2013 | Mumme Ranch O-1-15385 | Eagleville (Eagle Ford-1) | Verdun Oil EF II LLC | Shut In · shut in Dec 1, 2023 | 9,668 |
Formation tops
As filed on W-2/G-1. Subsea from 395 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CarrizoBASE OF CARRIZO | 3,750 | -3,355 |
| Austin Chalk | 8,919 | -8,524 |
| Eagle Ford | 9,439 | -9,044 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,340 | 15,597 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,877 | 14.75 | 1,860 S |
| 5.5 | 15,721 | 8.75 | 2,511 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 →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jul 2, 2014 | May 14, 2014 | Yes |
| 00 | Jun 28, 2012 | May 17, 2012 | — |
| 00 | May 15, 2012 | Mar 8, 2012 | Yes |
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 42-283-32911 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-32911 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for 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/28332911, documented in the API reference.