CASTO UNIT I LAS
CASTO UNIT I LAS is a Texas oil lease in La Salle County, Railroad Commission district 01, operated by Chesapeake Operating, Inc. It has 1 wellbore on file with the Commission. Reported production runs from January 2013 to August 2026, totalling 341,640 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 $329K 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 459 barrels a month. Its strongest month on the record we hold was May 2016, at 2,817 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 CASTO UNIT I LAS
- Who operates CASTO UNIT I LAS?
- CASTO UNIT I LAS is operated by Chesapeake Operating, Inc., Railroad Commission of Texas operator number 147715.
- Where is CASTO UNIT I LAS?
- CASTO UNIT I LAS is a Texas oil lease in La Salle County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 16788.
- Is CASTO UNIT I LAS still producing?
- CASTO UNIT I LAS is currently producing. The most recent month of production reported to the Railroad Commission of Texas for CASTO UNIT I LAS is August 2026.
- How much has CASTO UNIT I LAS produced?
- CASTO UNIT I LAS has reported 341,640 barrels of oil (bbl) to the Railroad Commission of Texas between January 2013 and August 2026, from 1 wellbore.
- How much is CASTO UNIT I LAS worth?
- The remaining production from CASTO UNIT I LAS is estimated to be worth about $1.3M in total as of 26 August 2026, within a range of $1.0M to $1.6M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in CASTO UNIT I LAS is a fraction of it. The estimate fits an Arps decline curve to the production CASTO UNIT I LAS has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for CASTO UNIT I LAS is an estimate of value, not an offer and not an appraisal.
- How much income does CASTO UNIT I LAS generate in a year?
- CASTO UNIT I LAS is forecast to net about $329K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in CASTO UNIT I LAS receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Chesapeake Operating, Inc. |
|---|---|
| Field | Eagleville (Eagle Ford-1) |
| County | La Salle County, Texas |
| RRC district | 01 |
| Lease number | 16788 |
| Wellbores | 1 |
| Reported production | 341,640 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.3M |
Where CASTO UNIT I LAS 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.