WILLIS 40B
WILLIS 40B is a Texas oil lease in Midland County, Railroad Commission district 08, operated by Crownquest Operating, LLC. It has 4 wellbores on file with the Commission. Reported production runs from March 2018 to August 2026, totalling 187,597 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 $289K, with roughly $253K 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 1,515 barrels a month, about 379 per wellbore. Its strongest month on the record we hold was December 2024, at 6,913 barrels. In our own backtest, leases producing at this rate are forecast to within about 17% 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 WILLIS 40B
- Who operates WILLIS 40B?
- WILLIS 40B is operated by Crownquest Operating, LLC, Railroad Commission of Texas operator number 191554.
- Where is WILLIS 40B?
- WILLIS 40B is a Texas oil lease in Midland County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 51083.
- Is WILLIS 40B still producing?
- WILLIS 40B is currently producing. The most recent month of production reported to the Railroad Commission of Texas for WILLIS 40B is August 2026.
- How much has WILLIS 40B produced?
- WILLIS 40B has reported 187,597 barrels of oil (bbl) to the Railroad Commission of Texas between March 2018 and August 2026, from 4 wellbores.
- How much is WILLIS 40B worth?
- The remaining production from WILLIS 40B is estimated to be worth about $289K in total as of 26 August 2026, within a range of $239K to $338K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WILLIS 40B is a fraction of it. The estimate fits an Arps decline curve to the production WILLIS 40B has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for WILLIS 40B is an estimate of value, not an offer and not an appraisal.
- How much income does WILLIS 40B generate in a year?
- WILLIS 40B is forecast to net about $253K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in WILLIS 40B receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Crownquest Operating, LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Midland County, Texas |
| RRC district | 08 |
| Lease number | 51083 |
| Wellbores | 4 |
| Reported production | 187,597 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $289K |
Where WILLIS 40B 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.