ST W
ST W is a Texas oil lease in Midland County, Railroad Commission district 08, operated by Windsor Permian LLC. It has 59 wellbores on file with the Commission. Reported production runs from December 2010 to August 2026, totalling 9,362,049 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 $48.6M, with roughly $13.8M 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 16,261 barrels a month, about 276 per wellbore. Its strongest month on the record we hold was December 2016, at 211,782 barrels. In our own backtest, leases producing at this rate are forecast to within about 18% 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 ST W
- Who operates ST W?
- ST W is operated by Windsor Permian LLC, Railroad Commission of Texas operator number 931746.
- Where is ST W?
- ST W is a Texas oil lease in Midland County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 41340.
- Is ST W still producing?
- ST W is currently producing. The most recent month of production reported to the Railroad Commission of Texas for ST W is August 2026.
- How much has ST W produced?
- ST W has reported 9,362,049 barrels of oil (bbl) to the Railroad Commission of Texas between December 2010 and August 2026, from 59 wellbores.
- How much is ST W worth?
- The remaining production from ST W is estimated to be worth about $48.6M in total as of 26 August 2026, within a range of $39.9M to $57.3M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in ST W is a fraction of it. The estimate fits an Arps decline curve to the production ST W has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for ST W is an estimate of value, not an offer and not an appraisal.
- How much income does ST W generate in a year?
- ST W is forecast to net about $13.8M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in ST W 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 | Midland County, Texas |
| RRC district | 08 |
| Lease number | 41340 |
| Wellbores | 59 |
| Reported production | 9,362,049 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $48.6M |
Where ST W 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.