LEASES · O-1-19777 · OIL · DISTRICT 01
Retzloff-Tom Unit
No volume since Dec 2021Marathon Oil EF LLC · Atascosa County · Eagleville (Eagle Ford-1) field
Retzloff-Tom Unit is an RRC oil lease (O-1-19777) in Atascosa County operated by Marathon Oil EF LLC, with one well completed on it.
It has reported 16.2K barrels of oil and 23.8K mcf of gas since September 2017, last reporting volume in December 2021 (statewide data runs through April 2026).
No volume was reported in the last 12 months; the last was in December 2021.
- 16.2K
- bbl oil, all reported
- 23.8K
- mcf gas incl. casinghead
- 0
- bbl oil, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- 1.06K
- peak month, bbl (Dec 2019)
PDQ LEASE REPORTS · FIRST SEP 2017 · LAST VOLUME DEC 2021 · 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 0 · prior 12 0
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 0 · prior 12 0
Who reported it
Each run of months one operator filed the production report, oldest first.
- Marathon Oil EF LLCSep 2017 → Jul 2026 · 107 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-1-19777, documented in the API reference.