LEASES · O-10-41138 · OIL · DISTRICT 08
Brumley "59A"
ReportingDiamondback E&P LLC · Martin County · Spraberry (Trend Area) field
Brumley "59a" is an RRC oil lease (O-10-41138) in Martin County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 74.2K barrels of oil and 80.4K mcf of gas since March 2011, last reporting volume in January 2026 (statewide data runs through April 2026).
The last 12 reported months total 1.29K barrels of oil, down 42% on the year before; the lease peaked at 2.67K barrels in October 2011.
3 operators have filed production on it, most recently Diamondback E&P LLC since January 2025.
- 74.2K
- bbl oil, all reported
- 80.4K
- mcf gas incl. casinghead
- 1.29K
- bbl oil, last 12 reported
- -42%
- vs the 12 before
- 1
- wells completed on it
- 2.67K
- peak month, bbl (Oct 2011)
PDQ LEASE REPORTS · FIRST MAR 2011 · 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 1,289 · prior 12 2,219(-42%)
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 297 · prior 12 1,675(-82%)
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.
- Pioneer Natural Res. USA, Inc.Mar 2011 → Feb 2024 · 156 mo
- Endeavor Energy Resources L.P.Mar 2024 → Dec 2024 · 10 mo
- Diamondback E&P LLCJan 2025 → Jul 2026 · 19 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-10-41138, documented in the API reference.