LEASES · O-2-12584 · OIL · DISTRICT 02
J.M. O'Brien JLB
ReportingSouth Texas Operating Company · Refugio County · Greta (4400) field
J.M. O'Brien Jlb is an RRC oil lease (O-2-12584) in Refugio County operated by South Texas Operating Company, with one well completed on it.
It has reported 57.7K barrels of oil since November 2022, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 9.22K barrels of oil, down 31% on the year before; the lease peaked at 8.15K barrels in December 2022.
2 operators have filed production on it, most recently South Texas Operating Company since July 2023.
- 57.7K
- bbl oil, all reported
- 0
- mcf gas incl. casinghead
- 9.22K
- bbl oil, last 12 reported
- -31%
- vs the 12 before
- 1
- wells completed on it
- 8.15K
- peak month, bbl (Dec 2022)
PDQ LEASE REPORTS · FIRST NOV 2022 · 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 9,223 · prior 12 13,328(-31%)
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.
- Jura Energy Operating LLCNov 2022 → Jun 2023 · 8 mo
- South Texas Operating CompanyJul 2023 → Jul 2026 · 37 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-2-12584, documented in the API reference.