TOMBSTONE 8-25 I
TOMBSTONE 8-25 I is a Texas oil lease in Martin County, Railroad Commission district 08, operated by Diamondback E&P LLC. It has 1 wellbore on file with the Commission. Reported production runs from August 2025 to August 2026, totalling 50,081 barrels. The lease is intermittent. 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 $16.9M, with roughly $3.2M 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 2,765 barrels a month. Its strongest month on the record we hold was April 2026, at 24,885 barrels. In our own backtest, leases producing at this rate are forecast to within about 17% 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 TOMBSTONE 8-25 I
- Who operates TOMBSTONE 8-25 I?
- TOMBSTONE 8-25 I is operated by Diamondback E&P LLC, Railroad Commission of Texas operator number 217012.
- Where is TOMBSTONE 8-25 I?
- TOMBSTONE 8-25 I is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 64844.
- Is TOMBSTONE 8-25 I still producing?
- TOMBSTONE 8-25 I is intermittent. The most recent month of production reported to the Railroad Commission of Texas for TOMBSTONE 8-25 I is August 2026.
- How much has TOMBSTONE 8-25 I produced?
- TOMBSTONE 8-25 I has reported 50,081 barrels of oil (bbl) to the Railroad Commission of Texas between August 2025 and August 2026, from 1 wellbore.
- How much is TOMBSTONE 8-25 I worth?
- The remaining production from TOMBSTONE 8-25 I is estimated to be worth about $16.9M in total as of 27 August 2026, within a range of $14.0M to $19.8M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in TOMBSTONE 8-25 I is a fraction of it. The estimate fits an Arps decline curve to the production TOMBSTONE 8-25 I has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for TOMBSTONE 8-25 I is an estimate of value, not an offer and not an appraisal.
- How much income does TOMBSTONE 8-25 I generate in a year?
- TOMBSTONE 8-25 I is forecast to net about $3.2M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in TOMBSTONE 8-25 I receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Diamondback E&P LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Martin County, Texas |
| RRC district | 08 |
| Lease number | 64844 |
| Wellbores | 1 |
| Reported production | 50,081 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $16.9M |
Where TOMBSTONE 8-25 I 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.