UL ACFD 4475
UL ACFD 4475 is a Texas oil lease in Reagan County, Railroad Commission district 7C, operated by Black Swan Opco, LLC. It has 12 wellbores on file with the Commission. Reported production runs from July 2025 to August 2026, totalling 682,222 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 $136.4M, with roughly $30.5M 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 52,060 barrels a month, about 4,338 per wellbore. Its strongest month on the record we hold was April 2026, at 155,056 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 UL ACFD 4475
- Who operates UL ACFD 4475?
- UL ACFD 4475 is operated by Black Swan Opco, LLC, Railroad Commission of Texas operator number 101935.
- Where is UL ACFD 4475?
- UL ACFD 4475 is a Texas oil lease in Reagan County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 23377.
- Is UL ACFD 4475 still producing?
- UL ACFD 4475 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for UL ACFD 4475 is August 2026.
- How much has UL ACFD 4475 produced?
- UL ACFD 4475 has reported 682,222 barrels of oil (bbl) to the Railroad Commission of Texas between July 2025 and August 2026, from 12 wellbores.
- How much is UL ACFD 4475 worth?
- The remaining production from UL ACFD 4475 is estimated to be worth about $136.4M in total as of 27 August 2026, within a range of $111.9M to $161.0M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in UL ACFD 4475 is a fraction of it. The estimate fits an Arps decline curve to the production UL ACFD 4475 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for UL ACFD 4475 is an estimate of value, not an offer and not an appraisal.
- How much income does UL ACFD 4475 generate in a year?
- UL ACFD 4475 is forecast to net about $30.5M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in UL ACFD 4475 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Black Swan Opco, LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Reagan County, Texas |
| RRC district | 7C |
| Lease number | 23377 |
| Wellbores | 12 |
| Reported production | 682,222 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $136.4M |
Where UL ACFD 4475 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.