LEASES · O-1-18802 · OIL · DISTRICT 01
Diamond H State Unit B
ReportingJavelin Energy Partners Mgmt LLC · Dimmit County · Briscoe Ranch (Eagleford) field
Diamond H State Unit B is an RRC oil lease (O-1-18802) in Dimmit County operated by Javelin Energy Partners Mgmt LLC, with 18 wells completed on it.
It has reported 2.91M barrels of oil and 8.17M mcf of gas since February 2016, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 135K barrels of oil, down 63% on the year before; the lease peaked at 177K barrels in July 2018.
3 operators have filed production on it, most recently Javelin Energy Partners Mgmt LLC since September 2023.
- 2.91M
- bbl oil, all reported
- 8.17M
- mcf gas incl. casinghead
- 135K
- bbl oil, last 12 reported
- -63%
- vs the 12 before
- 18
- wells completed on it
- 177K
- peak month, bbl (Jul 2018)
PDQ LEASE REPORTS · FIRST FEB 2016 · 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 135,442 · prior 12 367,189(-63%)
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 692,307 · prior 12 796,687(-13%)
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.
- Anadarko E&P Onshore LLCFeb 2016 → Feb 2017 · 13 mo
- SN EF Maverick, LLCMar 2017 → Aug 2023 · 78 mo
- Javelin Energy Partners Mgmt LLCSep 2023 → Jul 2026 · 35 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
18
wells completed on the lease
- NO Type on File
- 13
- Producing
- 5
Operates them now
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-1-18802, documented in the API reference.