ULS 4-9
ULS 4-9 is a Texas oil lease in Andrews County, Railroad Commission district 08, operated by Devon Energy Production Co, L.P. It has 1 wellbore on file with the Commission. Reported production runs from April 2011 to August 2026, totalling 21,418 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 $246K, with roughly $47K 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 59 barrels a month. Its strongest month on the record we hold was January 2021, at 164 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 ULS 4-9
- Who operates ULS 4-9?
- ULS 4-9 is operated by Devon Energy Production Co, L.P., Railroad Commission of Texas operator number 216378.
- Where is ULS 4-9?
- ULS 4-9 is a Texas oil lease in Andrews County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 41428.
- Is ULS 4-9 still producing?
- ULS 4-9 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for ULS 4-9 is August 2026.
- How much has ULS 4-9 produced?
- ULS 4-9 has reported 21,418 barrels of oil (bbl) to the Railroad Commission of Texas between April 2011 and August 2026, from 1 wellbore.
- How much is ULS 4-9 worth?
- The remaining production from ULS 4-9 is estimated to be worth about $246K in total as of 26 August 2026, within a range of $135K to $356K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in ULS 4-9 is a fraction of it. The estimate fits an Arps decline curve to the production ULS 4-9 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for ULS 4-9 is an estimate of value, not an offer and not an appraisal.
- How much income does ULS 4-9 generate in a year?
- ULS 4-9 is forecast to net about $47K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in ULS 4-9 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Devon Energy Production Co, L.P. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Andrews County, Texas |
| RRC district | 08 |
| Lease number | 41428 |
| Wellbores | 1 |
| Reported production | 21,418 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $246K |
Where ULS 4-9 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.