MCMILLIN I.S. AC. 8
MCMILLIN I.S. AC. 8 is a Texas oil lease in Stonewall County, Railroad Commission district 7B, operated by Petrotex, Inc. It has 7 wellbores on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 71,898 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 $948K, with roughly $182K 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 210 barrels a month, about 30 per wellbore. Its strongest month on the record we hold was January 2020, at 673 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 MCMILLIN I.S. AC. 8
- Who operates MCMILLIN I.S. AC. 8?
- MCMILLIN I.S. AC. 8 is operated by Petrotex, Inc., Railroad Commission of Texas operator number 660823.
- Where is MCMILLIN I.S. AC. 8?
- MCMILLIN I.S. AC. 8 is a Texas oil lease in Stonewall County, Texas, in Railroad Commission district 7B. Its Railroad Commission lease number is 13207.
- Is MCMILLIN I.S. AC. 8 still producing?
- MCMILLIN I.S. AC. 8 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MCMILLIN I.S. AC. 8 is August 2026.
- How much has MCMILLIN I.S. AC. 8 produced?
- MCMILLIN I.S. AC. 8 has reported 71,898 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 7 wellbores.
- How much is MCMILLIN I.S. AC. 8 worth?
- The remaining production from MCMILLIN I.S. AC. 8 is estimated to be worth about $948K in total as of 27 August 2026, within a range of $740K to $1.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MCMILLIN I.S. AC. 8 is a fraction of it. The estimate fits an Arps decline curve to the production MCMILLIN I.S. AC. 8 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MCMILLIN I.S. AC. 8 is an estimate of value, not an offer and not an appraisal.
- How much income does MCMILLIN I.S. AC. 8 generate in a year?
- MCMILLIN I.S. AC. 8 is forecast to net about $182K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in MCMILLIN I.S. AC. 8 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Petrotex, Inc. |
|---|---|
| Field | Guest (Canyon Sand) |
| County | Stonewall County, Texas |
| RRC district | 7B |
| Lease number | 13207 |
| Wellbores | 7 |
| Reported production | 71,898 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $948K |
Where MCMILLIN I.S. AC. 8 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.