J. B. CALVERLEY -A-
J. B. CALVERLEY -A- is a Texas oil lease in Glasscock County, Railroad Commission district 08, operated by Mewbourne Oil Company. It has 5 wellbores on file with the Commission. Reported production runs from May 2010 to August 2026, totalling 36,553 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 $675K, with roughly $120K 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 177 barrels a month, about 35 per wellbore. Its strongest month on the record we hold was October 2019, at 1,974 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 J. B. CALVERLEY -A-
- Who operates J. B. CALVERLEY -A-?
- J. B. CALVERLEY -A- is operated by Mewbourne Oil Company, Railroad Commission of Texas operator number 562560.
- Where is J. B. CALVERLEY -A-?
- J. B. CALVERLEY -A- is a Texas oil lease in Glasscock County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 40116.
- Is J. B. CALVERLEY -A- still producing?
- J. B. CALVERLEY -A- is currently producing. The most recent month of production reported to the Railroad Commission of Texas for J. B. CALVERLEY -A- is August 2026.
- How much has J. B. CALVERLEY -A- produced?
- J. B. CALVERLEY -A- has reported 36,553 barrels of oil (bbl) to the Railroad Commission of Texas between May 2010 and August 2026, from 5 wellbores.
- How much is J. B. CALVERLEY -A- worth?
- The remaining production from J. B. CALVERLEY -A- is estimated to be worth about $675K in total as of 26 August 2026, within a range of $527K to $824K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in J. B. CALVERLEY -A- is a fraction of it. The estimate fits an Arps decline curve to the production J. B. CALVERLEY -A- has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for J. B. CALVERLEY -A- is an estimate of value, not an offer and not an appraisal.
- How much income does J. B. CALVERLEY -A- generate in a year?
- J. B. CALVERLEY -A- is forecast to net about $120K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in J. B. CALVERLEY -A- receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Mewbourne Oil Company |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Glasscock County, Texas |
| RRC district | 08 |
| Lease number | 40116 |
| Wellbores | 5 |
| Reported production | 36,553 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $675K |
Where J. B. CALVERLEY -A- 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.