MAYFIELD 18
MAYFIELD 18 is a Texas oil lease in Martin County, Railroad Commission district 08, operated by Crownquest Operating, LLC. It has 2 wellbores on file with the Commission. Reported production runs from March 2012 to August 2026, totalling 120,556 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 $996K, with roughly $326K 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 465 barrels a month, about 233 per wellbore. Its strongest month on the record we hold was March 2017, at 1,321 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 MAYFIELD 18
- Who operates MAYFIELD 18?
- MAYFIELD 18 is operated by Crownquest Operating, LLC, Railroad Commission of Texas operator number 191554.
- Where is MAYFIELD 18?
- MAYFIELD 18 is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 42719.
- Is MAYFIELD 18 still producing?
- MAYFIELD 18 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MAYFIELD 18 is August 2026.
- How much has MAYFIELD 18 produced?
- MAYFIELD 18 has reported 120,556 barrels of oil (bbl) to the Railroad Commission of Texas between March 2012 and August 2026, from 2 wellbores.
- How much is MAYFIELD 18 worth?
- The remaining production from MAYFIELD 18 is estimated to be worth about $996K in total as of 26 August 2026, within a range of $777K to $1.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MAYFIELD 18 is a fraction of it. The estimate fits an Arps decline curve to the production MAYFIELD 18 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MAYFIELD 18 is an estimate of value, not an offer and not an appraisal.
- How much income does MAYFIELD 18 generate in a year?
- MAYFIELD 18 is forecast to net about $326K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MAYFIELD 18 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Crownquest Operating, LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Martin County, Texas |
| RRC district | 08 |
| Lease number | 42719 |
| Wellbores | 2 |
| Reported production | 120,556 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $996K |
Where MAYFIELD 18 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.