WINKLEMAN-DONOVAN 9B
WINKLEMAN-DONOVAN 9B is a Texas oil lease in Midland County, Railroad Commission district 08, operated by Pioneer Natural Res. USA, Inc. It has 1 wellbore on file with the Commission. Reported production runs from October 2025 to August 2026, totalling 64,086 barrels. The lease is intermittent. 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 $25.5M, with roughly $4.8M 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 5,260 barrels a month. Its strongest month on the record we hold was April 2026, at 32,369 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 WINKLEMAN-DONOVAN 9B
- Who operates WINKLEMAN-DONOVAN 9B?
- WINKLEMAN-DONOVAN 9B is operated by Pioneer Natural Res. USA, Inc., Railroad Commission of Texas operator number 665748.
- Where is WINKLEMAN-DONOVAN 9B?
- WINKLEMAN-DONOVAN 9B is a Texas oil lease in Midland County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 64681.
- Is WINKLEMAN-DONOVAN 9B still producing?
- WINKLEMAN-DONOVAN 9B is intermittent. The most recent month of production reported to the Railroad Commission of Texas for WINKLEMAN-DONOVAN 9B is August 2026.
- How much has WINKLEMAN-DONOVAN 9B produced?
- WINKLEMAN-DONOVAN 9B has reported 64,086 barrels of oil (bbl) to the Railroad Commission of Texas between October 2025 and August 2026, from 1 wellbore.
- How much is WINKLEMAN-DONOVAN 9B worth?
- The remaining production from WINKLEMAN-DONOVAN 9B is estimated to be worth about $25.5M in total as of 27 August 2026, within a range of $21.2M to $29.9M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WINKLEMAN-DONOVAN 9B is a fraction of it. The estimate fits an Arps decline curve to the production WINKLEMAN-DONOVAN 9B has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for WINKLEMAN-DONOVAN 9B is an estimate of value, not an offer and not an appraisal.
- How much income does WINKLEMAN-DONOVAN 9B generate in a year?
- WINKLEMAN-DONOVAN 9B is forecast to net about $4.8M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in WINKLEMAN-DONOVAN 9B receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Pioneer Natural Res. USA, Inc. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Midland County, Texas |
| RRC district | 08 |
| Lease number | 64681 |
| Wellbores | 1 |
| Reported production | 64,086 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $25.5M |
Where WINKLEMAN-DONOVAN 9B 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.