SHIMANO 28-40 E
SHIMANO 28-40 E is a Texas oil lease in Martin County, Railroad Commission district 08, operated by Diamondback E&P LLC. It has 4 wellbores on file with the Commission. Reported production runs from October 2024 to August 2026, totalling 841,361 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 $12.0M, with roughly $10.0M 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 49,440 barrels a month, about 12,360 per wellbore. Its strongest month on the record we hold was April 2025, at 120,270 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 SHIMANO 28-40 E
- Who operates SHIMANO 28-40 E?
- SHIMANO 28-40 E is operated by Diamondback E&P LLC, Railroad Commission of Texas operator number 217012.
- Where is SHIMANO 28-40 E?
- SHIMANO 28-40 E is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 62387.
- Is SHIMANO 28-40 E still producing?
- SHIMANO 28-40 E is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SHIMANO 28-40 E is August 2026.
- How much has SHIMANO 28-40 E produced?
- SHIMANO 28-40 E has reported 841,361 barrels of oil (bbl) to the Railroad Commission of Texas between October 2024 and August 2026, from 4 wellbores.
- How much is SHIMANO 28-40 E worth?
- The remaining production from SHIMANO 28-40 E is estimated to be worth about $12.0M in total as of 26 August 2026, within a range of $9.8M to $14.1M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SHIMANO 28-40 E is a fraction of it. The estimate fits an Arps decline curve to the production SHIMANO 28-40 E has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SHIMANO 28-40 E is an estimate of value, not an offer and not an appraisal.
- How much income does SHIMANO 28-40 E generate in a year?
- SHIMANO 28-40 E is forecast to net about $10.0M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in SHIMANO 28-40 E 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 | 62387 |
| Wellbores | 4 |
| Reported production | 841,361 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $12.0M |
Where SHIMANO 28-40 E 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.