MASTEN, F. O.
MASTEN, F. O. is a Texas oil lease in Cochran County, Railroad Commission district 8A, operated by Moncrief, W. A., JR. It has 1 wellbore on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 79,888 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 $926K, with roughly $157K 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 140 barrels a month. Its strongest month on the record we hold was July 2019, at 295 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 MASTEN, F. O.
- Who operates MASTEN, F. O.?
- MASTEN, F. O. is operated by Moncrief, W. A., JR., Railroad Commission of Texas operator number 575000.
- Where is MASTEN, F. O.?
- MASTEN, F. O. is a Texas oil lease in Cochran County, Texas, in Railroad Commission district 8A. Its Railroad Commission lease number is 65112.
- Is MASTEN, F. O. still producing?
- MASTEN, F. O. is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MASTEN, F. O. is August 2026.
- How much has MASTEN, F. O. produced?
- MASTEN, F. O. has reported 79,888 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 1 wellbore.
- How much is MASTEN, F. O. worth?
- The remaining production from MASTEN, F. O. is estimated to be worth about $926K in total as of 27 August 2026, within a range of $722K to $1.1M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MASTEN, F. O. is a fraction of it. The estimate fits an Arps decline curve to the production MASTEN, F. O. has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MASTEN, F. O. is an estimate of value, not an offer and not an appraisal.
- How much income does MASTEN, F. O. generate in a year?
- MASTEN, F. O. is forecast to net about $157K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in MASTEN, F. O. receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Moncrief, W. A., JR. |
|---|---|
| Field | Moncrief-Masten (Devonian) |
| County | Cochran County, Texas |
| RRC district | 8A |
| Lease number | 65112 |
| Wellbores | 1 |
| Reported production | 79,888 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $926K |
Where MASTEN, F. O. 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.