Petrora

LEASES · O-1-15381 · OIL · DISTRICT 01

Maltsberger

Reporting

Verdun Oil EF II LLC · LA Salle County · Eagleville (Eagle Ford-1) field

Maltsberger is an RRC oil lease (O-1-15381) in La Salle County operated by Verdun Oil EF II LLC, with 42 wells completed on it.

It has reported 3.51M barrels of oil and 6.86M mcf of gas since December 2010, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 68.5K barrels of oil, down 33% on the year before; the lease peaked at 88K barrels in July 2012.

4 operators have filed production on it, most recently Verdun Oil EF II LLC since March 2025.

3.51M
bbl oil, all reported
6.86M
mcf gas incl. casinghead
68.5K
bbl oil, last 12 reported
-33%
vs the 12 before
42
wells completed on it
88K
peak month, bbl (Jul 2012)

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 68,461 · prior 12 102,206(-33%)

020K40K60K2017201820192020202120222023202420252026

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 496,695 · prior 12 912,625(-46%)

050K100K150K2017201820192020202120222023202420252026

Decline curve

A MODEL FITTED TO THE REPORTS, NOT A REPORT

An Arps hyperbolic curve fitted to the 41 reporting months of oil since the peak in Dec 2022. The dashed line below is that curve, drawn over the months it was fitted to and then 24 months past the last report; where it parts from the columns is where the model stops describing the lease. It describes the trend of past reports. It does not know about recompletions, shut-ins, or new wells, and it is shown only when the lease reported within the last year and the curve explains most of the history.

61%
first-year decline from the peak (nominal Di 121%)
0.5
b factor (hyperbolic)
0.95
fit R²
247K
bbl remaining on the curve, to 1 per month

Oil, barrels reported months since the peak, with the fitted curve and its projection

Last 12 months 68,461 · prior 12 102,206(-33%)

020K40K60K202320242025202620272028

Fitted hyperbolic curve from the Dec 2022 peak, dashed 24 months past the last report

Projected monthOct 2026Apr 2027Oct 2027Apr 2028
On the curve, bbl per month3,7513,1502,6832,312

Quoting a projected figure as if it were reported would be wrong; the reported figures are the ones in the charts and the table view. How production is reported →

Who reported it

Each run of months one operator filed the production report, oldest first.

  1. EL Paso E & P Company, L. P.Dec 2010 → Jul 2012 · 20 mo
  2. EP Energy E&P Company, L.P.Aug 2012 → Apr 2022 · 117 mo
  3. EP Energy E&P Company, LLCMay 2022 → Feb 2025 · 34 mo
  4. Verdun Oil EF II LLCMar 2025 → Jul 2026 · 17 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

42

wells completed on the lease

Producing
24
Not on Schedule
17
Shut IN
1

Operates them now

Verdun Oil EF II LLC
41
EL Paso E & P Company L. P.
1

Newest permits

All 42 wells, searchable →

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-1-15381, documented in the API reference.