MAYO
MAYO is a Texas oil lease in Frio County, Railroad Commission district 01, operated by Ampak Oil Company. It has 2 wellbores on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 48,986 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 $399K, with roughly $77K 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 102 barrels a month, about 51 per wellbore. Its strongest month on the record we hold was August 2025, at 347 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 MAYO
- Who operates MAYO?
- MAYO is operated by Ampak Oil Company, Railroad Commission of Texas operator number 020463.
- Where is MAYO?
- MAYO is a Texas oil lease in Frio County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 05056.
- Is MAYO still producing?
- MAYO is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MAYO is August 2026.
- How much has MAYO produced?
- MAYO has reported 48,986 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 2 wellbores.
- How much is MAYO worth?
- The remaining production from MAYO is estimated to be worth about $399K in total as of 26 August 2026, within a range of $311K to $487K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MAYO is a fraction of it. The estimate fits an Arps decline curve to the production MAYO has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MAYO is an estimate of value, not an offer and not an appraisal.
- How much income does MAYO generate in a year?
- MAYO is forecast to net about $77K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MAYO receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Ampak Oil Company |
|---|---|
| Field | Pearsall (Austin Chalk) |
| County | Frio County, Texas |
| RRC district | 01 |
| Lease number | 05056 |
| Wellbores | 2 |
| Reported production | 48,986 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $399K |
Where MAYO 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.