GLASSCOCK 5B
GLASSCOCK 5B is a Texas oil lease in Martin 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 2018 to August 2026, totalling 325,416 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 $2.0M, with roughly $719K 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 812 barrels a month. Its strongest month on the record we hold was May 2018, at 23,034 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 GLASSCOCK 5B
- Who operates GLASSCOCK 5B?
- GLASSCOCK 5B is operated by Pioneer Natural Res. USA, Inc., Railroad Commission of Texas operator number 665748.
- Where is GLASSCOCK 5B?
- GLASSCOCK 5B is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 50781.
- Is GLASSCOCK 5B still producing?
- GLASSCOCK 5B is currently producing. The most recent month of production reported to the Railroad Commission of Texas for GLASSCOCK 5B is August 2026.
- How much has GLASSCOCK 5B produced?
- GLASSCOCK 5B has reported 325,416 barrels of oil (bbl) to the Railroad Commission of Texas between April 2018 and August 2026, from 1 wellbore.
- How much is GLASSCOCK 5B worth?
- The remaining production from GLASSCOCK 5B is estimated to be worth about $2.0M in total as of 27 August 2026, within a range of $1.6M to $2.4M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in GLASSCOCK 5B is a fraction of it. The estimate fits an Arps decline curve to the production GLASSCOCK 5B has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for GLASSCOCK 5B is an estimate of value, not an offer and not an appraisal.
- How much income does GLASSCOCK 5B generate in a year?
- GLASSCOCK 5B is forecast to net about $719K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in GLASSCOCK 5B 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 | Martin County, Texas |
| RRC district | 08 |
| Lease number | 50781 |
| Wellbores | 1 |
| Reported production | 325,416 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $2.0M |
Where GLASSCOCK 5B 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.