BOLL-CALVERT UNIT FRO
BOLL-CALVERT UNIT FRO is a Texas oil lease in Frio County, Railroad Commission district 01, operated by Exco Operating Company, LP. It has 1 wellbore on file with the Commission. Reported production runs from April 2018 to August 2026, totalling 251,421 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 $3.2M, with roughly $792K 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 1,046 barrels a month. Its strongest month on the record we hold was July 2018, at 12,539 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 BOLL-CALVERT UNIT FRO
- Who operates BOLL-CALVERT UNIT FRO?
- BOLL-CALVERT UNIT FRO is operated by Exco Operating Company, LP, Railroad Commission of Texas operator number 256915.
- Where is BOLL-CALVERT UNIT FRO?
- BOLL-CALVERT UNIT FRO is a Texas oil lease in Frio County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 19290.
- Is BOLL-CALVERT UNIT FRO still producing?
- BOLL-CALVERT UNIT FRO is currently producing. The most recent month of production reported to the Railroad Commission of Texas for BOLL-CALVERT UNIT FRO is August 2026.
- How much has BOLL-CALVERT UNIT FRO produced?
- BOLL-CALVERT UNIT FRO has reported 251,421 barrels of oil (bbl) to the Railroad Commission of Texas between April 2018 and August 2026, from 1 wellbore.
- How much is BOLL-CALVERT UNIT FRO worth?
- The remaining production from BOLL-CALVERT UNIT FRO is estimated to be worth about $3.2M in total as of 27 August 2026, within a range of $2.7M to $3.7M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BOLL-CALVERT UNIT FRO is a fraction of it. The estimate fits an Arps decline curve to the production BOLL-CALVERT UNIT FRO has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for BOLL-CALVERT UNIT FRO is an estimate of value, not an offer and not an appraisal.
- How much income does BOLL-CALVERT UNIT FRO generate in a year?
- BOLL-CALVERT UNIT FRO is forecast to net about $792K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in BOLL-CALVERT UNIT FRO receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Exco Operating Company, LP |
|---|---|
| Field | Briscoe Ranch (Eagleford) |
| County | Frio County, Texas |
| RRC district | 01 |
| Lease number | 19290 |
| Wellbores | 1 |
| Reported production | 251,421 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $3.2M |
Where BOLL-CALVERT UNIT FRO 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.