RILEY
RILEY is a Texas oil lease in Glasscock County, Railroad Commission district 08, operated by Mariner Energy, Inc. It has 37 wellbores on file with the Commission. Reported production runs from December 2008 to August 2026, totalling 644,158 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 $791K, with roughly $213K 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 355 barrels a month, about 10 per wellbore. Its strongest month on the record we hold was May 2016, at 2,163 barrels. In our own backtest, leases producing at this rate are forecast to within about 22% 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 RILEY
- Who operates RILEY?
- RILEY is operated by Mariner Energy, Inc., Railroad Commission of Texas operator number 526155.
- Where is RILEY?
- RILEY is a Texas oil lease in Glasscock County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 39105.
- Is RILEY still producing?
- RILEY is currently producing. The most recent month of production reported to the Railroad Commission of Texas for RILEY is August 2026.
- How much has RILEY produced?
- RILEY has reported 644,158 barrels of oil (bbl) to the Railroad Commission of Texas between December 2008 and August 2026, from 37 wellbores.
- How much is RILEY worth?
- The remaining production from RILEY is estimated to be worth about $791K in total as of 27 August 2026, within a range of $617K to $965K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in RILEY is a fraction of it. The estimate fits an Arps decline curve to the production RILEY has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for RILEY is an estimate of value, not an offer and not an appraisal.
- How much income does RILEY generate in a year?
- RILEY is forecast to net about $213K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in RILEY receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Mariner Energy, Inc. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Glasscock County, Texas |
| RRC district | 08 |
| Lease number | 39105 |
| Wellbores | 37 |
| Reported production | 644,158 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $791K |
Where RILEY 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.