SHANNON 40
SHANNON 40 is a Texas oil lease in Crockett County, Railroad Commission district 7C, operated by Thompson, J. Cleo. It has 1 wellbore on file with the Commission. Reported production runs from July 2003 to August 2026, totalling 15,485 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 $62K, with roughly $12K 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 22 barrels a month. Its strongest month on the record we hold was April 2021, at 120 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 SHANNON 40
- Who operates SHANNON 40?
- SHANNON 40 is operated by Thompson, J. Cleo, Railroad Commission of Texas operator number 855610.
- Where is SHANNON 40?
- SHANNON 40 is a Texas oil lease in Crockett County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 15464.
- Is SHANNON 40 still producing?
- SHANNON 40 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SHANNON 40 is August 2026.
- How much has SHANNON 40 produced?
- SHANNON 40 has reported 15,485 barrels of oil (bbl) to the Railroad Commission of Texas between July 2003 and August 2026, from 1 wellbore.
- How much is SHANNON 40 worth?
- The remaining production from SHANNON 40 is estimated to be worth about $62K in total as of 27 August 2026, within a range of $34K to $89K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SHANNON 40 is a fraction of it. The estimate fits an Arps decline curve to the production SHANNON 40 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SHANNON 40 is an estimate of value, not an offer and not an appraisal.
- How much income does SHANNON 40 generate in a year?
- SHANNON 40 is forecast to net about $12K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in SHANNON 40 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Thompson, J. Cleo |
|---|---|
| Field | Elkhorn (Ellenburger, West) |
| County | Crockett County, Texas |
| RRC district | 7C |
| Lease number | 15464 |
| Wellbores | 1 |
| Reported production | 15,485 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $62K |
Where SHANNON 40 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.