COOK
COOK is a Texas oil lease in Shackelford County, Railroad Commission district 7B, operated by Glahn Resources, Inc. It has 1 wellbore on file with the Commission. Reported production runs from March 1999 to August 2026, totalling 19,544 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 $115K, with roughly $22K 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. Its strongest month on the record we hold was April 2023, at 119 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 COOK
- Who operates COOK?
- COOK is operated by Glahn Resources, Inc., Railroad Commission of Texas operator number 307644.
- Where is COOK?
- COOK is a Texas oil lease in Shackelford County, Texas, in Railroad Commission district 7B. Its Railroad Commission lease number is 28620.
- Is COOK still producing?
- COOK is currently producing. The most recent month of production reported to the Railroad Commission of Texas for COOK is August 2026.
- How much has COOK produced?
- COOK has reported 19,544 barrels of oil (bbl) to the Railroad Commission of Texas between March 1999 and August 2026, from 1 wellbore.
- How much is COOK worth?
- The remaining production from COOK is estimated to be worth about $115K in total as of 27 August 2026, within a range of $63K to $167K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in COOK is a fraction of it. The estimate fits an Arps decline curve to the production COOK has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for COOK is an estimate of value, not an offer and not an appraisal.
- How much income does COOK generate in a year?
- COOK is forecast to net about $22K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in COOK receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Glahn Resources, Inc. |
|---|---|
| Field | Jasper-Glahn (Bend) |
| County | Shackelford County, Texas |
| RRC district | 7B |
| Lease number | 28620 |
| Wellbores | 1 |
| Reported production | 19,544 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $115K |
Where COOK 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.