LEASES · O-1-15385 · OIL · DISTRICT 01
Mumme Ranch
ReportingVerdun Oil EF II LLC · LA Salle County · Eagleville (Eagle Ford-1) field
Mumme Ranch is an RRC oil lease (O-1-15385) in La Salle County operated by Verdun Oil EF II LLC, with 12 wells completed on it.
It has reported 1.89M barrels of oil and 3.95M mcf of gas since December 2010, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 55.3K barrels of oil, down 24% on the year before; the lease peaked at 57.9K barrels in April 2020.
5 operators have filed production on it, most recently Verdun Oil EF II LLC since March 2025.
- 1.89M
- bbl oil, all reported
- 3.95M
- mcf gas incl. casinghead
- 55.3K
- bbl oil, last 12 reported
- -24%
- vs the 12 before
- 12
- wells completed on it
- 57.9K
- peak month, bbl (Apr 2020)
PDQ LEASE REPORTS · FIRST DEC 2010 · LAST VOLUME APR 2026 · STATEWIDE DATA THROUGH APR 2026
Oil by month
Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.
Last 12 months 55,294 · prior 12 72,998(-24%)
Gas by month
Gas-well gas plus casinghead gas, mcf. On an oil lease all gas is reported as casinghead. The latest months are revised upward as late reports arrive.
Last 12 months 142,315 · prior 12 176,165(-19%)
Decline curve
None shown. Petrora fits an Arps curve only when the last ten years of oil reports follow one decline closely enough to project (R² of 0.7 or better over at least a year since the peak). This lease's recent history does not, so a projection would be a guess dressed as a number.
Who reported it
Each run of months one operator filed the production report, oldest first.
- Carrizo Oil & Gas, Inc.Dec 2010 → Mar 2012 · 16 mo
- Carrizo (Eagle Ford) LLCApr 2012 → Jan 2018 · 70 mo
- EP Energy E&P Company, L.P.Feb 2018 → Apr 2022 · 51 mo
- EP Energy E&P Company, LLCMay 2022 → Feb 2025 · 34 mo
- Verdun Oil EF II LLCMar 2025 → Jul 2026 · 17 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
12
wells completed on the lease
- Producing
- 11
- Shut IN
- 1
Operates them now
About this data
Monthly oil, gas, and casinghead from the RRC PDQ production dump, which lags the reporting month by two to three months; figures shown through Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
Developers: this page as JSON is GET /v1/data/leases/tx/o-1-15385, documented in the API reference.