SHIRK "1"
SHIRK "1" is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Chevron U. S. A. Inc. It has 2 wellbores on file with the Commission. Reported production runs from October 1995 to August 2026, totalling 89,187 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 $129K, with roughly $24K 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 32 barrels a month, about 16 per wellbore. Its strongest month on the record we hold was December 2018, at 178 barrels. In our own backtest, leases producing at this rate are forecast to within about 45% 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 SHIRK "1"
- Who operates SHIRK "1"?
- SHIRK "1" is operated by Chevron U. S. A. Inc., Railroad Commission of Texas operator number 148113.
- Where is SHIRK "1"?
- SHIRK "1" is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 13889.
- Is SHIRK "1" still producing?
- SHIRK "1" is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SHIRK "1" is August 2026.
- How much has SHIRK "1" produced?
- SHIRK "1" has reported 89,187 barrels of oil (bbl) to the Railroad Commission of Texas between October 1995 and August 2026, from 2 wellbores.
- How much is SHIRK "1" worth?
- The remaining production from SHIRK "1" is estimated to be worth about $129K in total as of 27 August 2026, within a range of $71K to $187K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SHIRK "1" is a fraction of it. The estimate fits an Arps decline curve to the production SHIRK "1" has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SHIRK "1" is an estimate of value, not an offer and not an appraisal.
- How much income does SHIRK "1" generate in a year?
- SHIRK "1" is forecast to net about $24K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in SHIRK "1" receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Chevron U. S. A. Inc. |
|---|---|
| Field | Triumph (Wolfcamp) |
| County | Upton County, Texas |
| RRC district | 7C |
| Lease number | 13889 |
| Wellbores | 2 |
| Reported production | 89,187 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $129K |
Where SHIRK "1" 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.