CALVERT
CALVERT is a Texas oil lease in Frio County, Railroad Commission district 01, operated by Blackbrush O & G, Inc. It has 3 wellbores on file with the Commission. Reported production runs from June 2011 to August 2026, totalling 94,268 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 $1.3M, with roughly $213K 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 190 barrels a month, about 63 per wellbore. Its strongest month on the record we hold was December 2016, at 540 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 CALVERT
- Who operates CALVERT?
- CALVERT is operated by Blackbrush O & G, Inc., Railroad Commission of Texas operator number 073027.
- Where is CALVERT?
- CALVERT is a Texas oil lease in Frio County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 16076.
- Is CALVERT still producing?
- CALVERT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for CALVERT is August 2026.
- How much has CALVERT produced?
- CALVERT has reported 94,268 barrels of oil (bbl) to the Railroad Commission of Texas between June 2011 and August 2026, from 3 wellbores.
- How much is CALVERT worth?
- The remaining production from CALVERT is estimated to be worth about $1.3M in total as of 26 August 2026, within a range of $982K to $1.5M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in CALVERT is a fraction of it. The estimate fits an Arps decline curve to the production CALVERT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for CALVERT is an estimate of value, not an offer and not an appraisal.
- How much income does CALVERT generate in a year?
- CALVERT is forecast to net about $213K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in CALVERT receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Blackbrush O & G, Inc. |
|---|---|
| Field | Pearsall (Buda, S.) |
| County | Frio County, Texas |
| RRC district | 01 |
| Lease number | 16076 |
| Wellbores | 3 |
| Reported production | 94,268 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.3M |
Where CALVERT 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.