WINFREE, WILLIAM
WINFREE, WILLIAM is a Texas oil lease in Orange County, Railroad Commission district 03, operated by Kilmarnock Oil Company, Inc. It has 5 wellbores on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 154,837 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 $1.2M, with roughly $279K 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 400 barrels a month, about 80 per wellbore. Its strongest month on the record we hold was December 2017, at 1,186 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 WINFREE, WILLIAM
- Who operates WINFREE, WILLIAM?
- WINFREE, WILLIAM is operated by Kilmarnock Oil Company, Inc., Railroad Commission of Texas operator number 461211.
- Where is WINFREE, WILLIAM?
- WINFREE, WILLIAM is a Texas oil lease in Orange County, Texas, in Railroad Commission district 03. Its Railroad Commission lease number is 03286.
- Is WINFREE, WILLIAM still producing?
- WINFREE, WILLIAM is currently producing. The most recent month of production reported to the Railroad Commission of Texas for WINFREE, WILLIAM is August 2026.
- How much has WINFREE, WILLIAM produced?
- WINFREE, WILLIAM has reported 154,837 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 5 wellbores.
- How much is WINFREE, WILLIAM worth?
- The remaining production from WINFREE, WILLIAM is estimated to be worth about $1.2M in total as of 26 August 2026, within a range of $961K to $1.5M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WINFREE, WILLIAM is a fraction of it. The estimate fits an Arps decline curve to the production WINFREE, WILLIAM has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for WINFREE, WILLIAM is an estimate of value, not an offer and not an appraisal.
- How much income does WINFREE, WILLIAM generate in a year?
- WINFREE, WILLIAM is forecast to net about $279K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in WINFREE, WILLIAM receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Kilmarnock Oil Company, Inc. |
|---|---|
| Field | Orange |
| County | Orange County, Texas |
| RRC district | 03 |
| Lease number | 03286 |
| Wellbores | 5 |
| Reported production | 154,837 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.2M |
Where WINFREE, WILLIAM 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.