LEASES · O-1-15844 · OIL · DISTRICT 01
Mark Brown
Verdun Oil EF II LLC · La Salle County · Eagleville (Eagle Ford-1) field
Mark Brown is an RRC oil lease (O-1-15844) in La Salle County operated by Verdun Oil EF II LLC, with one well completed on it.
It has reported 114K barrels of oil and 282K mcf of gas since April 2012, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 2.82K barrels of oil in the 12 months through April 2026, up 13% on the year before; the lease peaked at 17K barrels in July 2012.
4 operators have filed production on it, most recently Verdun Oil EF II LLC since March 2025.
- 114K
- bbl oil, all reported
- 282K
- mcf gas incl. casinghead
- 2.82K
- bbl oil, 12 months through Apr 2026
- +13%
- vs the 12 before
- 1
- wells completed on it
- 17K
- peak month, bbl (Jul 2012)
PDQ LEASE REPORTS · FIRST APR 2012 · 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.
12 months through Apr 2026 2,815 · prior 12 2,486(+13%)
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.
12 months through Apr 2026 15 · prior 12 19(-21%)
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.
- El Paso E & P Company, L. P.Feb 2012 → Jul 2012 · 6 mo
- EP Energy E&P Company, L.P.Aug 2012 → Apr 2022 · 117 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
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-1-15844, documented in the API reference.