BRUNSON 36-13J
BRUNSON 36-13J 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 April 2025 to August 2026, totalling 227,042 barrels. The lease is intermittent. 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 $21.3M, with roughly $11.5M 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 17,906 barrels a month. Its strongest month on the record we hold was September 2025, at 46,486 barrels. In our own backtest, leases producing at this rate are forecast to within about 18% 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 BRUNSON 36-13J
- Who operates BRUNSON 36-13J?
- BRUNSON 36-13J is operated by Pioneer Natural Res. USA, Inc., Railroad Commission of Texas operator number 665748.
- Where is BRUNSON 36-13J?
- BRUNSON 36-13J is a Texas oil lease in Glasscock County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 63763.
- Is BRUNSON 36-13J still producing?
- BRUNSON 36-13J is intermittent. The most recent month of production reported to the Railroad Commission of Texas for BRUNSON 36-13J is August 2026.
- How much has BRUNSON 36-13J produced?
- BRUNSON 36-13J has reported 227,042 barrels of oil (bbl) to the Railroad Commission of Texas between April 2025 and August 2026, from 1 wellbore.
- How much is BRUNSON 36-13J worth?
- The remaining production from BRUNSON 36-13J is estimated to be worth about $21.3M in total as of 26 August 2026, within a range of $17.5M to $25.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BRUNSON 36-13J is a fraction of it. The estimate fits an Arps decline curve to the production BRUNSON 36-13J has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for BRUNSON 36-13J is an estimate of value, not an offer and not an appraisal.
- How much income does BRUNSON 36-13J generate in a year?
- BRUNSON 36-13J is forecast to net about $11.5M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in BRUNSON 36-13J 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 | 63763 |
| Wellbores | 1 |
| Reported production | 227,042 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $21.3M |
Where BRUNSON 36-13J 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.