RIO 27-15 E
RIO 27-15 E 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 June 2024 to August 2026, totalling 337,144 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 $1.3M, with roughly $1.3M 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 12,269 barrels a month. Its strongest month on the record we hold was March 2025, at 43,405 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 RIO 27-15 E
- Who operates RIO 27-15 E?
- RIO 27-15 E is operated by Diamondback E&P LLC, Railroad Commission of Texas operator number 217012.
- Where is RIO 27-15 E?
- RIO 27-15 E is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 61885.
- Is RIO 27-15 E still producing?
- RIO 27-15 E is currently producing. The most recent month of production reported to the Railroad Commission of Texas for RIO 27-15 E is August 2026.
- How much has RIO 27-15 E produced?
- RIO 27-15 E has reported 337,144 barrels of oil (bbl) to the Railroad Commission of Texas between June 2024 and August 2026, from 1 wellbore.
- How much is RIO 27-15 E worth?
- The remaining production from RIO 27-15 E is estimated to be worth about $1.3M in total as of 26 August 2026, within a range of $1.1M to $1.6M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in RIO 27-15 E is a fraction of it. The estimate fits an Arps decline curve to the production RIO 27-15 E has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for RIO 27-15 E is an estimate of value, not an offer and not an appraisal.
- How much income does RIO 27-15 E generate in a year?
- RIO 27-15 E is forecast to net about $1.3M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in RIO 27-15 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 | 61885 |
| Wellbores | 1 |
| Reported production | 337,144 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.3M |
Where RIO 27-15 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.