REXENE
REXENE is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by ST. Mary Land & Exploration Co. It has 4 wellbores on file with the Commission. Reported production runs from January 2007 to August 2026, totalling 205,867 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 $439K, with roughly $81K 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 173 barrels a month, about 43 per wellbore. Its strongest month on the record we hold was May 2017, at 895 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 REXENE
- Who operates REXENE?
- REXENE is operated by ST. Mary Land & Exploration Co., Railroad Commission of Texas operator number 810874.
- Where is REXENE?
- REXENE is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 16107.
- Is REXENE still producing?
- REXENE is currently producing. The most recent month of production reported to the Railroad Commission of Texas for REXENE is August 2026.
- How much has REXENE produced?
- REXENE has reported 205,867 barrels of oil (bbl) to the Railroad Commission of Texas between January 2007 and August 2026, from 4 wellbores.
- How much is REXENE worth?
- The remaining production from REXENE is estimated to be worth about $439K in total as of 26 August 2026, within a range of $342K to $536K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in REXENE is a fraction of it. The estimate fits an Arps decline curve to the production REXENE has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for REXENE is an estimate of value, not an offer and not an appraisal.
- How much income does REXENE generate in a year?
- REXENE is forecast to net about $81K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in REXENE receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | ST. Mary Land & Exploration Co. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Upton County, Texas |
| RRC district | 7C |
| Lease number | 16107 |
| Wellbores | 4 |
| Reported production | 205,867 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $439K |
Where REXENE 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.