NAIL RANCH "691"
NAIL RANCH "691" is a Texas oil lease in Shackelford County, Railroad Commission district 7B, operated by Cottonwood Petroleum Co. It has 1 wellbore on file with the Commission. Reported production runs from November 2005 to August 2026, totalling 5,703 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 $112K, with roughly $21K 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 30 barrels a month. Its strongest month on the record we hold was January 2026, at 36 barrels. In our own backtest, leases producing at this rate are forecast to within about 45% 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 NAIL RANCH "691"
- Who operates NAIL RANCH "691"?
- NAIL RANCH "691" is operated by Cottonwood Petroleum Co., Railroad Commission of Texas operator number 182075.
- Where is NAIL RANCH "691"?
- NAIL RANCH "691" is a Texas oil lease in Shackelford County, Texas, in Railroad Commission district 7B. Its Railroad Commission lease number is 29660.
- Is NAIL RANCH "691" still producing?
- NAIL RANCH "691" is currently producing. The most recent month of production reported to the Railroad Commission of Texas for NAIL RANCH "691" is August 2026.
- How much has NAIL RANCH "691" produced?
- NAIL RANCH "691" has reported 5,703 barrels of oil (bbl) to the Railroad Commission of Texas between November 2005 and August 2026, from 1 wellbore.
- How much is NAIL RANCH "691" worth?
- The remaining production from NAIL RANCH "691" is estimated to be worth about $112K in total as of 27 August 2026, within a range of $61K to $162K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in NAIL RANCH "691" is a fraction of it. The estimate fits an Arps decline curve to the production NAIL RANCH "691" has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for NAIL RANCH "691" is an estimate of value, not an offer and not an appraisal.
- How much income does NAIL RANCH "691" generate in a year?
- NAIL RANCH "691" is forecast to net about $21K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in NAIL RANCH "691" receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Cottonwood Petroleum Co. |
|---|---|
| Field | Shackelford County Regular |
| County | Shackelford County, Texas |
| RRC district | 7B |
| Lease number | 29660 |
| Wellbores | 1 |
| Reported production | 5,703 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $112K |
Where NAIL RANCH "691" 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.