GARDENDALE "9"
GARDENDALE "9" is a Texas oil lease in Ector County, Railroad Commission district 08, operated by Keystone Petroleum GP LLC. It has 15 wellbores on file with the Commission. Reported production runs from May 2010 to August 2026, totalling 736,518 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 $571K, with roughly $311K 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 521 barrels a month, about 35 per wellbore. Its strongest month on the record we hold was June 2016, at 8,686 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 GARDENDALE "9"
- Who operates GARDENDALE "9"?
- GARDENDALE "9" is operated by Keystone Petroleum GP LLC, Railroad Commission of Texas operator number 458790.
- Where is GARDENDALE "9"?
- GARDENDALE "9" is a Texas oil lease in Ector County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 40523.
- Is GARDENDALE "9" still producing?
- GARDENDALE "9" is currently producing. The most recent month of production reported to the Railroad Commission of Texas for GARDENDALE "9" is August 2026.
- How much has GARDENDALE "9" produced?
- GARDENDALE "9" has reported 736,518 barrels of oil (bbl) to the Railroad Commission of Texas between May 2010 and August 2026, from 15 wellbores.
- How much is GARDENDALE "9" worth?
- The remaining production from GARDENDALE "9" is estimated to be worth about $571K in total as of 27 August 2026, within a range of $446K to $697K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in GARDENDALE "9" is a fraction of it. The estimate fits an Arps decline curve to the production GARDENDALE "9" has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for GARDENDALE "9" is an estimate of value, not an offer and not an appraisal.
- How much income does GARDENDALE "9" generate in a year?
- GARDENDALE "9" is forecast to net about $311K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in GARDENDALE "9" receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Keystone Petroleum GP LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Ector County, Texas |
| RRC district | 08 |
| Lease number | 40523 |
| Wellbores | 15 |
| Reported production | 736,518 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $571K |
Where GARDENDALE "9" 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.