COX
COX is a Texas oil lease in Rusk County, Railroad Commission district 6E, operated by Cook Drilling Co. It has 8 wellbores on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 111,138 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 $594K, with roughly $114K 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 155 barrels a month, about 19 per wellbore. Its strongest month on the record we hold was March 2017, at 404 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 COX
- Who operates COX?
- COX is operated by Cook Drilling Co., Railroad Commission of Texas operator number 174325.
- Where is COX?
- COX is a Texas oil lease in Rusk County, Texas, in Railroad Commission district 6E. Its Railroad Commission lease number is 06438.
- Is COX still producing?
- COX is currently producing. The most recent month of production reported to the Railroad Commission of Texas for COX is August 2026.
- How much has COX produced?
- COX has reported 111,138 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 8 wellbores.
- How much is COX worth?
- The remaining production from COX is estimated to be worth about $594K in total as of 26 August 2026, within a range of $464K to $725K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in COX is a fraction of it. The estimate fits an Arps decline curve to the production COX has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for COX is an estimate of value, not an offer and not an appraisal.
- How much income does COX generate in a year?
- COX is forecast to net about $114K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in COX receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Cook Drilling Co. |
|---|---|
| Field | East Texas |
| County | Rusk County, Texas |
| RRC district | 6E |
| Lease number | 06438 |
| Wellbores | 8 |
| Reported production | 111,138 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $594K |
Where COX 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.