JAX
JAX is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Cox, John L. It has 2 wellbores on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 65,155 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 $324K, with roughly $58K 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 112 barrels a month, about 56 per wellbore. Its strongest month on the record we hold was April 2025, at 506 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 JAX
- Who operates JAX?
- JAX is operated by Cox, John L., Railroad Commission of Texas operator number 185980.
- Where is JAX?
- JAX is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 10697.
- Is JAX still producing?
- JAX is currently producing. The most recent month of production reported to the Railroad Commission of Texas for JAX is August 2026.
- How much has JAX produced?
- JAX has reported 65,155 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 2 wellbores.
- How much is JAX worth?
- The remaining production from JAX is estimated to be worth about $324K in total as of 26 August 2026, within a range of $252K to $395K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in JAX is a fraction of it. The estimate fits an Arps decline curve to the production JAX has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for JAX is an estimate of value, not an offer and not an appraisal.
- How much income does JAX generate in a year?
- JAX is forecast to net about $58K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in JAX receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Cox, John L. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Upton County, Texas |
| RRC district | 7C |
| Lease number | 10697 |
| Wellbores | 2 |
| Reported production | 65,155 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $324K |
Where JAX 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.