MARILYN
MARILYN is a Texas oil lease in Wheeler County, Railroad Commission district 10, operated by Sanguine Gas Exploration, LLC. It has 1 wellbore on file with the Commission. Reported production runs from November 2011 to August 2026, totalling 134,040 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 $482K, with roughly $72K 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 barrels a month. Its strongest month on the record we hold was July 2016, at 906 barrels. In our own backtest, leases producing at this rate are forecast to within about 45% 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 MARILYN
- Who operates MARILYN?
- MARILYN is operated by Sanguine Gas Exploration, LLC, Railroad Commission of Texas operator number 748059.
- Where is MARILYN?
- MARILYN is a Texas oil lease in Wheeler County, Texas, in Railroad Commission district 10. Its Railroad Commission lease number is 08558.
- Is MARILYN still producing?
- MARILYN is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MARILYN is August 2026.
- How much has MARILYN produced?
- MARILYN has reported 134,040 barrels of oil (bbl) to the Railroad Commission of Texas between November 2011 and August 2026, from 1 wellbore.
- How much is MARILYN worth?
- The remaining production from MARILYN is estimated to be worth about $482K in total as of 26 August 2026, within a range of $265K to $699K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MARILYN is a fraction of it. The estimate fits an Arps decline curve to the production MARILYN has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MARILYN is an estimate of value, not an offer and not an appraisal.
- How much income does MARILYN generate in a year?
- MARILYN is forecast to net about $72K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MARILYN receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Sanguine Gas Exploration, LLC |
|---|---|
| Field | Mills Ranch (Granite Wash Cons.) |
| County | Wheeler County, Texas |
| RRC district | 10 |
| Lease number | 08558 |
| Wellbores | 1 |
| Reported production | 134,040 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $482K |
Where MARILYN 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.