GARDENDALE 12
GARDENDALE 12 is a Texas oil lease in Ector County, Railroad Commission district 08, operated by Keystone Petroleum GP LLC. It has 11 wellbores on file with the Commission. Reported production runs from September 2010 to August 2026, totalling 871,573 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 $10.9M, with roughly $2.3M 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 3,234 barrels a month, about 294 per wellbore. Its strongest month on the record we hold was May 2016, at 14,291 barrels. In our own backtest, leases producing at this rate are forecast to within about 17% 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 12
- Who operates GARDENDALE 12?
- GARDENDALE 12 is operated by Keystone Petroleum GP LLC, Railroad Commission of Texas operator number 458790.
- Where is GARDENDALE 12?
- GARDENDALE 12 is a Texas oil lease in Ector County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 40668.
- Is GARDENDALE 12 still producing?
- GARDENDALE 12 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for GARDENDALE 12 is August 2026.
- How much has GARDENDALE 12 produced?
- GARDENDALE 12 has reported 871,573 barrels of oil (bbl) to the Railroad Commission of Texas between September 2010 and August 2026, from 11 wellbores.
- How much is GARDENDALE 12 worth?
- The remaining production from GARDENDALE 12 is estimated to be worth about $10.9M in total as of 27 August 2026, within a range of $9.0M to $12.7M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in GARDENDALE 12 is a fraction of it. The estimate fits an Arps decline curve to the production GARDENDALE 12 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for GARDENDALE 12 is an estimate of value, not an offer and not an appraisal.
- How much income does GARDENDALE 12 generate in a year?
- GARDENDALE 12 is forecast to net about $2.3M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in GARDENDALE 12 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 | 40668 |
| Wellbores | 11 |
| Reported production | 871,573 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $10.9M |
Where GARDENDALE 12 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.