HALFF ESTATE -D-
HALFF ESTATE -D- is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Cox, John L. It has 1 wellbore on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 54,066 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 $361K, with roughly $64K 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 41 barrels a month. Its strongest month on the record we hold was January 2026, at 176 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 HALFF ESTATE -D-
- Who operates HALFF ESTATE -D-?
- HALFF ESTATE -D- is operated by Cox, John L., Railroad Commission of Texas operator number 185980.
- Where is HALFF ESTATE -D-?
- HALFF ESTATE -D- is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 07655.
- Is HALFF ESTATE -D- still producing?
- HALFF ESTATE -D- is currently producing. The most recent month of production reported to the Railroad Commission of Texas for HALFF ESTATE -D- is August 2026.
- How much has HALFF ESTATE -D- produced?
- HALFF ESTATE -D- has reported 54,066 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 1 wellbore.
- How much is HALFF ESTATE -D- worth?
- The remaining production from HALFF ESTATE -D- is estimated to be worth about $361K in total as of 26 August 2026, within a range of $199K to $524K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in HALFF ESTATE -D- is a fraction of it. The estimate fits an Arps decline curve to the production HALFF ESTATE -D- has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for HALFF ESTATE -D- is an estimate of value, not an offer and not an appraisal.
- How much income does HALFF ESTATE -D- generate in a year?
- HALFF ESTATE -D- is forecast to net about $64K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in HALFF ESTATE -D- receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Cox, John L. |
|---|---|
| Field | Old Upland (Bend) |
| County | Upton County, Texas |
| RRC district | 7C |
| Lease number | 07655 |
| Wellbores | 1 |
| Reported production | 54,066 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $361K |
Where HALFF ESTATE -D- 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.