LEASES · O-10-41740 · OIL · DISTRICT 08
Big Max 25 NW
ReportingSabalo II Operating, LLC · Andrews County · Spraberry (Trend Area) field
Big Max 25 NW is an RRC oil lease (O-10-41740) in Andrews County operated by Sabalo II Operating, LLC, with 2 wells completed on it.
It has reported 131K barrels of oil and 121K mcf of gas since June 2011, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 4.83K barrels of oil, up 14% on the year before; the lease peaked at 2.78K barrels in December 2011.
3 operators have filed production on it, most recently Sabalo II Operating, LLC since October 2024.
- 131K
- bbl oil, all reported
- 121K
- mcf gas incl. casinghead
- 4.83K
- bbl oil, last 12 reported
- +14%
- vs the 12 before
- 2
- wells completed on it
- 2.78K
- peak month, bbl (Dec 2011)
PDQ LEASE REPORTS · FIRST JUN 2011 · 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 4,833 · prior 12 4,258(+14%)
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 3,953 · prior 12 3,522(+12%)
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.
- Windsor Permian LLCJun 2011 → Jun 2012 · 13 mo
- Diamondback E&P LLCJul 2012 → Sep 2024 · 147 mo
- Sabalo II Operating, LLCOct 2024 → Jul 2026 · 22 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- Plugged
- 1
- Producing
- 1
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-10-41740, documented in the API reference.