FENWICK 10-3 D
FENWICK 10-3 D 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 March 2025 to August 2026, totalling 135,840 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 $7.4M, with roughly $5.5M 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 10,587 barrels a month. Its strongest month on the record we hold was October 2025, at 29,793 barrels. In our own backtest, leases producing at this rate are forecast to within about 18% 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 FENWICK 10-3 D
- Who operates FENWICK 10-3 D?
- FENWICK 10-3 D is operated by Diamondback E&P LLC, Railroad Commission of Texas operator number 217012.
- Where is FENWICK 10-3 D?
- FENWICK 10-3 D is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 63659.
- Is FENWICK 10-3 D still producing?
- FENWICK 10-3 D is intermittent. The most recent month of production reported to the Railroad Commission of Texas for FENWICK 10-3 D is August 2026.
- How much has FENWICK 10-3 D produced?
- FENWICK 10-3 D has reported 135,840 barrels of oil (bbl) to the Railroad Commission of Texas between March 2025 and August 2026, from 1 wellbore.
- How much is FENWICK 10-3 D worth?
- The remaining production from FENWICK 10-3 D is estimated to be worth about $7.4M in total as of 27 August 2026, within a range of $6.1M to $8.8M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in FENWICK 10-3 D is a fraction of it. The estimate fits an Arps decline curve to the production FENWICK 10-3 D has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for FENWICK 10-3 D is an estimate of value, not an offer and not an appraisal.
- How much income does FENWICK 10-3 D generate in a year?
- FENWICK 10-3 D is forecast to net about $5.5M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in FENWICK 10-3 D 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 | 63659 |
| Wellbores | 1 |
| Reported production | 135,840 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $7.4M |
Where FENWICK 10-3 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.