BIG MAX 25 SE
BIG MAX 25 SE is a Texas oil lease in Andrews County, Railroad Commission district 08, operated by Windsor Permian LLC. It has 1 wellbore on file with the Commission. Reported production runs from May 2011 to August 2026, totalling 42,390 barrels. The lease is currently producing. Fitting a decline curve to that history and pricing the remaining production at today's forward curve values the whole lease — a 100% undivided interest — at about $730K, with roughly $137K expected over the next twelve months. An individual royalty owner receives their own decimal interest times that figure. Over the last twelve months on file it averaged 229 barrels a month. Its strongest month on the record we hold was October 2025, at 443 barrels. In our own backtest, leases producing at this rate are forecast to within about 22% of what they went on to produce, and that measured error is the range shown on the page rather than a confidence of our own devising.
Key facts about BIG MAX 25 SE
- Who operates BIG MAX 25 SE?
- BIG MAX 25 SE is operated by Windsor Permian LLC, Railroad Commission of Texas operator number 931746.
- Where is BIG MAX 25 SE?
- BIG MAX 25 SE is a Texas oil lease in Andrews County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 42348.
- Is BIG MAX 25 SE still producing?
- BIG MAX 25 SE is currently producing. The most recent month of production reported to the Railroad Commission of Texas for BIG MAX 25 SE is August 2026.
- How much has BIG MAX 25 SE produced?
- BIG MAX 25 SE has reported 42,390 barrels of oil (bbl) to the Railroad Commission of Texas between May 2011 and August 2026, from 1 wellbore.
- How much is BIG MAX 25 SE worth?
- The remaining production from BIG MAX 25 SE is estimated to be worth about $730K in total as of 27 August 2026, within a range of $569K to $891K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BIG MAX 25 SE is a fraction of it. The estimate fits an Arps decline curve to the production BIG MAX 25 SE has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for BIG MAX 25 SE is an estimate of value, not an offer and not an appraisal.
- How much income does BIG MAX 25 SE generate in a year?
- BIG MAX 25 SE is forecast to net about $137K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in BIG MAX 25 SE receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Windsor Permian LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Andrews County, Texas |
| RRC district | 08 |
| Lease number | 42348 |
| Wellbores | 1 |
| Reported production | 42,390 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $730K |
Where BIG MAX 25 SE sits
Source: Railroad Commission of Texas lease production records, complete through . Figures on this page were computed on .
Production figures are as reported to the Railroad Commission of Texas. The value shown is an estimate produced by fitting a decline curve to that reported history; it is not an offer or an appraisal. How this estimate is calculated.