LEASES · O-2-12115 · OIL · DISTRICT 02
Maurer-McFarland Unit AC
Marathon Oil EF LLC · Karnes County · Sugarkane (Austin Chalk) field
Maurer-Mcfarland Unit AC is an RRC oil lease (O-2-12115) in Karnes County operated by Marathon Oil EF LLC, with 2 wells completed on it.
It has reported 643K barrels of oil and 1.53M mcf of gas since May 2021, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 31.7K barrels of oil in the 12 months through April 2026, down 38% on the year before; the lease peaked at 45.1K barrels in June 2021.
- 643K
- bbl oil, all reported
- 1.53M
- mcf gas incl. casinghead
- 31.7K
- bbl oil, 12 months through Apr 2026
- -38%
- vs the 12 before
- 2
- wells completed on it
- 45.1K
- peak month, bbl (Jun 2021)
PDQ LEASE REPORTS · FIRST MAY 2021 · 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 31,706 · prior 12 51,005(-38%)
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 148,989 · prior 12 194,822(-24%)
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.
- Marathon Oil EF LLCDec 2020 → Jul 2026 · 68 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- Producing
- 2
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.
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