E.D. BOOKS 13
E.D. BOOKS 13 is a Texas oil lease in Glasscock County, Railroad Commission district 08, operated by Mariner Energy, Inc. It has 10 wellbores on file with the Commission. Reported production runs from October 2009 to August 2026, totalling 241,723 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 $1.2M, with roughly $198K 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 256 barrels a month, about 26 per wellbore. Its strongest month on the record we hold was May 2016, at 1,006 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 E.D. BOOKS 13
- Who operates E.D. BOOKS 13?
- E.D. BOOKS 13 is operated by Mariner Energy, Inc., Railroad Commission of Texas operator number 526155.
- Where is E.D. BOOKS 13?
- E.D. BOOKS 13 is a Texas oil lease in Glasscock County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 39641.
- Is E.D. BOOKS 13 still producing?
- E.D. BOOKS 13 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for E.D. BOOKS 13 is August 2026.
- How much has E.D. BOOKS 13 produced?
- E.D. BOOKS 13 has reported 241,723 barrels of oil (bbl) to the Railroad Commission of Texas between October 2009 and August 2026, from 10 wellbores.
- How much is E.D. BOOKS 13 worth?
- The remaining production from E.D. BOOKS 13 is estimated to be worth about $1.2M in total as of 27 August 2026, within a range of $926K to $1.4M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in E.D. BOOKS 13 is a fraction of it. The estimate fits an Arps decline curve to the production E.D. BOOKS 13 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for E.D. BOOKS 13 is an estimate of value, not an offer and not an appraisal.
- How much income does E.D. BOOKS 13 generate in a year?
- E.D. BOOKS 13 is forecast to net about $198K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in E.D. BOOKS 13 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 | 39641 |
| Wellbores | 10 |
| Reported production | 241,723 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.2M |
Where E.D. BOOKS 13 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.