BIG SONNY
BIG SONNY is a Texas oil lease in Dimmit County, Railroad Commission district 01, operated by CML Exploration, LLC. It has 1 wellbore on file with the Commission. Reported production runs from June 2015 to August 2026, totalling 37,596 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 $352K, with roughly $62K 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 65 barrels a month. Its strongest month on the record we hold was April 2018, at 2,119 barrels. In our own backtest, leases producing at this rate are forecast to within about 45% 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 BIG SONNY
- Who operates BIG SONNY?
- BIG SONNY is operated by CML Exploration, LLC, Railroad Commission of Texas operator number 120648.
- Where is BIG SONNY?
- BIG SONNY is a Texas oil lease in Dimmit County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 18625.
- Is BIG SONNY still producing?
- BIG SONNY is currently producing. The most recent month of production reported to the Railroad Commission of Texas for BIG SONNY is August 2026.
- How much has BIG SONNY produced?
- BIG SONNY has reported 37,596 barrels of oil (bbl) to the Railroad Commission of Texas between June 2015 and August 2026, from 1 wellbore.
- How much is BIG SONNY worth?
- The remaining production from BIG SONNY is estimated to be worth about $352K in total as of 27 August 2026, within a range of $194K to $511K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BIG SONNY is a fraction of it. The estimate fits an Arps decline curve to the production BIG SONNY has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for BIG SONNY is an estimate of value, not an offer and not an appraisal.
- How much income does BIG SONNY generate in a year?
- BIG SONNY is forecast to net about $62K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in BIG SONNY receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | CML Exploration, LLC |
|---|---|
| Field | Pearsall (Austin Chalk) |
| County | Dimmit County, Texas |
| RRC district | 01 |
| Lease number | 18625 |
| Wellbores | 1 |
| Reported production | 37,596 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $352K |
Where BIG SONNY 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.