LEASES · O-3-23609 · OIL · DISTRICT 03
Cockburn Oil Unit
ReportingCharolais Energy, LLC · Wharton County · Magnet Withers, E.(frio Lower) field
Cockburn Oil Unit is an RRC oil lease (O-3-23609) in Wharton County operated by Charolais Energy, LLC, with one well completed on it.
It has reported 86.5K barrels of oil and 280 mcf of gas since December 1998, last reporting volume in January 2026 (statewide data runs through April 2026).
The last 12 reported months total 7 barrels of oil, down 99% on the year before; the lease peaked at 1.11K barrels in March 1999.
7 operators have filed production on it, most recently Charolais Energy, LLC since March 2025.
- 86.5K
- bbl oil, all reported
- 280
- mcf gas incl. casinghead
- 7
- bbl oil, last 12 reported
- -99%
- vs the 12 before
- 1
- wells completed on it
- 1.11K
- peak month, bbl (Mar 1999)
PDQ LEASE REPORTS · FIRST DEC 1998 · LAST VOLUME JAN 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 7 · prior 12 1,298(-99%)
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
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.
- Rodessa Operating CompanyDec 1998 → Nov 2012 · 168 mo
- Lodi Drilling & Service Co.Dec 2012 → Feb 2014 · 15 mo
- Choice Exploration, Inc.Mar 2014 → May 2015 · 15 mo
- Gemarmi Inc.Jun 2015 → Apr 2021 · 71 mo
- Resource Expl & Prod, Inc.May 2021 → Jun 2023 · 26 mo
- Cotton Valley Resources, LLCJul 2023 → Feb 2025 · 20 mo
- Charolais Energy, LLCMar 2025 → Jul 2026 · 17 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-3-23609, documented in the API reference.