LONE STAR "73E"
LONE STAR "73E" is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Endeavor Energy Resources L.P. It has 1 wellbore on file with the Commission. Reported production runs from March 2009 to August 2026, totalling 69,582 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 $717K, with roughly $135K 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 130 barrels a month. Its strongest month on the record we hold was May 2017, at 348 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 LONE STAR "73E"
- Who operates LONE STAR "73E"?
- LONE STAR "73E" is operated by Endeavor Energy Resources L.P., Railroad Commission of Texas operator number 251726.
- Where is LONE STAR "73E"?
- LONE STAR "73E" is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 16899.
- Is LONE STAR "73E" still producing?
- LONE STAR "73E" is currently producing. The most recent month of production reported to the Railroad Commission of Texas for LONE STAR "73E" is August 2026.
- How much has LONE STAR "73E" produced?
- LONE STAR "73E" has reported 69,582 barrels of oil (bbl) to the Railroad Commission of Texas between March 2009 and August 2026, from 1 wellbore.
- How much is LONE STAR "73E" worth?
- The remaining production from LONE STAR "73E" is estimated to be worth about $717K in total as of 26 August 2026, within a range of $559K to $875K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in LONE STAR "73E" is a fraction of it. The estimate fits an Arps decline curve to the production LONE STAR "73E" has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for LONE STAR "73E" is an estimate of value, not an offer and not an appraisal.
- How much income does LONE STAR "73E" generate in a year?
- LONE STAR "73E" is forecast to net about $135K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in LONE STAR "73E" receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Endeavor Energy Resources L.P. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Upton County, Texas |
| RRC district | 7C |
| Lease number | 16899 |
| Wellbores | 1 |
| Reported production | 69,582 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $717K |
Where LONE STAR "73E" 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.