JAIMASI 12
JAIMASI 12 is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Summit Petroleum LLC. It has 1 wellbore on file with the Commission. Reported production runs from January 2024 to August 2026, totalling 116,050 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 $617K, with roughly $578K 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 5,186 barrels a month. Its strongest month on the record we hold was February 2025, at 20,817 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 JAIMASI 12
- Who operates JAIMASI 12?
- JAIMASI 12 is operated by Summit Petroleum LLC, Railroad Commission of Texas operator number 829221.
- Where is JAIMASI 12?
- JAIMASI 12 is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 22585.
- Is JAIMASI 12 still producing?
- JAIMASI 12 is intermittent. The most recent month of production reported to the Railroad Commission of Texas for JAIMASI 12 is August 2026.
- How much has JAIMASI 12 produced?
- JAIMASI 12 has reported 116,050 barrels of oil (bbl) to the Railroad Commission of Texas between January 2024 and August 2026, from 1 wellbore.
- How much is JAIMASI 12 worth?
- The remaining production from JAIMASI 12 is estimated to be worth about $617K in total as of 26 August 2026, within a range of $512K to $722K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in JAIMASI 12 is a fraction of it. The estimate fits an Arps decline curve to the production JAIMASI 12 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for JAIMASI 12 is an estimate of value, not an offer and not an appraisal.
- How much income does JAIMASI 12 generate in a year?
- JAIMASI 12 is forecast to net about $578K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in JAIMASI 12 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Summit Petroleum LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Upton County, Texas |
| RRC district | 7C |
| Lease number | 22585 |
| Wellbores | 1 |
| Reported production | 116,050 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $617K |
Where JAIMASI 12 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.