ZAPPENDUSTER B
ZAPPENDUSTER B is a Texas gas lease in La Salle County, Railroad Commission district 01, operated by Verdun Oil Ef II LLC. It has 1 wellbore on file with the Commission. Reported production runs from January 2025 to August 2026, totalling 1,204,476 thousand cubic feet. 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 $84.7M, with roughly $18.0M 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 94,095 thousand cubic feet a month. Its strongest month on the record we hold was December 2025, at 152,009 thousand cubic feet. In our own backtest, leases producing at this rate are forecast to within about 18% 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 ZAPPENDUSTER B
- Who operates ZAPPENDUSTER B?
- ZAPPENDUSTER B is operated by Verdun Oil Ef II LLC, Railroad Commission of Texas operator number 102886.
- Where is ZAPPENDUSTER B?
- ZAPPENDUSTER B is a Texas gas lease in La Salle County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 299076.
- Is ZAPPENDUSTER B still producing?
- ZAPPENDUSTER B is currently producing. The most recent month of production reported to the Railroad Commission of Texas for ZAPPENDUSTER B is August 2026.
- How much has ZAPPENDUSTER B produced?
- ZAPPENDUSTER B has reported 1,204,476 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 2025 and August 2026, from 1 wellbore.
- How much is ZAPPENDUSTER B worth?
- The remaining production from ZAPPENDUSTER B is estimated to be worth about $84.7M in total as of 26 August 2026, within a range of $69.4M to $99.9M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in ZAPPENDUSTER B is a fraction of it. The estimate fits an Arps decline curve to the production ZAPPENDUSTER B has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for ZAPPENDUSTER B is an estimate of value, not an offer and not an appraisal.
- How much income does ZAPPENDUSTER B generate in a year?
- ZAPPENDUSTER B is forecast to net about $18.0M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in ZAPPENDUSTER B receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Verdun Oil Ef II LLC |
|---|---|
| Field | Eagleville (Eagle Ford-1) |
| County | La Salle County, Texas |
| RRC district | 01 |
| Lease number | 299076 |
| Wellbores | 1 |
| Reported production | 1,204,476 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $84.7M |
Where ZAPPENDUSTER B 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.