STONE-ROBB E45B
STONE-ROBB E45B is a Texas oil lease in Glasscock County, Railroad Commission district 08, operated by Pioneer Natural Res. USA, Inc. It has 1 wellbore on file with the Commission. Reported production runs from September 2022 to August 2026, totalling 309,930 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 $9.3M, with roughly $2.5M 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 4,011 barrels a month. Its strongest month on the record we hold was October 2022, at 30,918 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 STONE-ROBB E45B
- Who operates STONE-ROBB E45B?
- STONE-ROBB E45B is operated by Pioneer Natural Res. USA, Inc., Railroad Commission of Texas operator number 665748.
- Where is STONE-ROBB E45B?
- STONE-ROBB E45B is a Texas oil lease in Glasscock County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 58145.
- Is STONE-ROBB E45B still producing?
- STONE-ROBB E45B is currently producing. The most recent month of production reported to the Railroad Commission of Texas for STONE-ROBB E45B is August 2026.
- How much has STONE-ROBB E45B produced?
- STONE-ROBB E45B has reported 309,930 barrels of oil (bbl) to the Railroad Commission of Texas between September 2022 and August 2026, from 1 wellbore.
- How much is STONE-ROBB E45B worth?
- The remaining production from STONE-ROBB E45B is estimated to be worth about $9.3M in total as of 26 August 2026, within a range of $7.7M to $10.9M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in STONE-ROBB E45B is a fraction of it. The estimate fits an Arps decline curve to the production STONE-ROBB E45B has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for STONE-ROBB E45B is an estimate of value, not an offer and not an appraisal.
- How much income does STONE-ROBB E45B generate in a year?
- STONE-ROBB E45B is forecast to net about $2.5M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in STONE-ROBB E45B receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Pioneer Natural Res. USA, Inc. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Glasscock County, Texas |
| RRC district | 08 |
| Lease number | 58145 |
| Wellbores | 1 |
| Reported production | 309,930 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $9.3M |
Where STONE-ROBB E45B 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.