LEASES · O-4-12306 · OIL · DISTRICT 04
Kleberg, R J Jr TR Zach Past
No volume since Nov 1999Exxon Mobil Corporation · Brooks County · Viboras (Zone 2, Viii, C) field
Kleberg, R J JR TR Zach Past is an RRC oil lease (O-4-12306) in Brooks County operated by Exxon Mobil Corporation, with one well completed on it.
It has reported 12.4K barrels of oil and 135K mcf of gas since February 1994, last reporting volume in November 1999 (statewide data runs through April 2026).
The last 12 reported months total 354 barrels of oil, down 92% on the year before; the lease peaked at 587 barrels in October 1998.
2 operators have filed production on it, most recently Exxon Mobil Corporation since April 2000.
- 12.4K
- bbl oil, all reported
- 135K
- mcf gas incl. casinghead
- 354
- bbl oil, last 12 reported
- -92%
- vs the 12 before
- 1
- wells completed on it
- 587
- peak month, bbl (Oct 1998)
PDQ LEASE REPORTS · FIRST FEB 1994 · LAST VOLUME NOV 1999 · 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 354 · prior 12 4,591(-92%)
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 3,960 · prior 12 53,145(-93%)
Who reported it
Each run of months one operator filed the production report, oldest first.
- Exxon Corp.Feb 1994 → Mar 2000 · 74 mo
- Exxon Mobil CorporationApr 2000 → Sep 2000 · 6 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-4-12306, documented in the API reference.