LEASES · O-2-10338 · OIL · DISTRICT 02
Gross-McLean Unit
ReportingMarathon Oil EF LLC · Karnes County · Eagleville (Eagle Ford-2) field
Gross-Mclean Unit is an RRC oil lease (O-2-10338) in Karnes County operated by Marathon Oil EF LLC, with 6 wells completed on it.
It has reported 595K barrels of oil and 1.6M mcf of gas since November 2012, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 999 barrels of oil, down 14% on the year before; the lease peaked at 47.5K barrels in December 2012.
- 595K
- bbl oil, all reported
- 1.6M
- mcf gas incl. casinghead
- 999
- bbl oil, last 12 reported
- -14%
- vs the 12 before
- 6
- wells completed on it
- 47.5K
- peak month, bbl (Dec 2012)
PDQ LEASE REPORTS · FIRST NOV 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.
Last 12 months 999 · prior 12 1,161(-14%)
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 1,111 · prior 12 2,585(-57%)
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 LLCNov 2012 → Jul 2026 · 165 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
6
wells completed on the lease
- NO Type on File
- 3
- Shut IN
- 2
- Producing
- 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.
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