BLALOCK
BLALOCK is a Texas oil lease in Glasscock County, Railroad Commission district 08, operated by Piedra Operating, LLC. It has 3 wellbores on file with the Commission. Reported production runs from October 2009 to August 2026, totalling 121,249 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 $973K, with roughly $205K 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 297 barrels a month, about 99 per wellbore. Its strongest month on the record we hold was June 2016, at 1,008 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 BLALOCK
- Who operates BLALOCK?
- BLALOCK is operated by Piedra Operating, LLC, Railroad Commission of Texas operator number 664930.
- Where is BLALOCK?
- BLALOCK is a Texas oil lease in Glasscock County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 39648.
- Is BLALOCK still producing?
- BLALOCK is currently producing. The most recent month of production reported to the Railroad Commission of Texas for BLALOCK is August 2026.
- How much has BLALOCK produced?
- BLALOCK has reported 121,249 barrels of oil (bbl) to the Railroad Commission of Texas between October 2009 and August 2026, from 3 wellbores.
- How much is BLALOCK worth?
- The remaining production from BLALOCK is estimated to be worth about $973K in total as of 27 August 2026, within a range of $759K to $1.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BLALOCK is a fraction of it. The estimate fits an Arps decline curve to the production BLALOCK has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for BLALOCK is an estimate of value, not an offer and not an appraisal.
- How much income does BLALOCK generate in a year?
- BLALOCK is forecast to net about $205K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in BLALOCK receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Piedra Operating, LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Glasscock County, Texas |
| RRC district | 08 |
| Lease number | 39648 |
| Wellbores | 3 |
| Reported production | 121,249 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $973K |
Where BLALOCK 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.