LEASES · O-2-10375 · OIL · DISTRICT 02
Coy City Ranch Unit B
ReportingMarathon Oil EF LLC · Karnes County · Eagleville (Eagle Ford-2) field
Coy City Ranch Unit B is an RRC oil lease (O-2-10375) in Karnes County operated by Marathon Oil EF LLC, with 8 wells completed on it.
It has reported 2.05M barrels of oil and 3.89M mcf of gas since December 2012, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 80.9K barrels of oil, down 44% on the year before; the lease peaked at 113K barrels in June 2018.
- 2.05M
- bbl oil, all reported
- 3.89M
- mcf gas incl. casinghead
- 80.9K
- bbl oil, last 12 reported
- -44%
- vs the 12 before
- 8
- wells completed on it
- 113K
- peak month, bbl (Jun 2018)
PDQ LEASE REPORTS · FIRST DEC 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 80,900 · prior 12 145,088(-44%)
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 263,576 · prior 12 460,198(-43%)
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 2012 → Jul 2026 · 164 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
8
wells completed on the lease
- Producing
- 6
- Shut IN
- 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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