LEASES · O-2-8566 · OIL · DISTRICT 02
Mueller Unit
No volume since Apr 2017First Rock, Inc. · Karnes County · Falls City (Austin Chalk) field
Mueller Unit is an RRC oil lease (O-2-8566) in Karnes County operated by First Rock, Inc., with one well completed on it.
It has reported 6.4K barrels of oil and 4.96K mcf of gas since October 2000, last reporting volume in April 2017 (statewide data runs through April 2026).
The last 12 reported months total 36 barrels of oil; the lease peaked at 122 barrels in December 2004.
- 6.4K
- bbl oil, all reported
- 4.96K
- mcf gas incl. casinghead
- 36
- bbl oil, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- 122
- peak month, bbl (Dec 2004)
PDQ LEASE REPORTS · FIRST OCT 2000 · LAST VOLUME APR 2017 · 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 36 · 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.
- First Rock, Inc.Oct 2000 → Aug 2017 · 203 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-2-8566, documented in the API reference.