ANNIS
ANNIS is a Texas oil lease in Stonewall County, Railroad Commission district 7B, operated by Martin Oil Co. It has 11 wellbores on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 92,820 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 $279K, with roughly $54K 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 92 barrels a month, about 8 per wellbore. Its strongest month on the record we hold was June 2016, at 531 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 ANNIS
- Who operates ANNIS?
- ANNIS is operated by Martin Oil Co., Railroad Commission of Texas operator number 530795.
- Where is ANNIS?
- ANNIS is a Texas oil lease in Stonewall County, Texas, in Railroad Commission district 7B. Its Railroad Commission lease number is 04268.
- Is ANNIS still producing?
- ANNIS is currently producing. The most recent month of production reported to the Railroad Commission of Texas for ANNIS is August 2026.
- How much has ANNIS produced?
- ANNIS has reported 92,820 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 11 wellbores.
- How much is ANNIS worth?
- The remaining production from ANNIS is estimated to be worth about $279K in total as of 27 August 2026, within a range of $153K to $404K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in ANNIS is a fraction of it. The estimate fits an Arps decline curve to the production ANNIS has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for ANNIS is an estimate of value, not an offer and not an appraisal.
- How much income does ANNIS generate in a year?
- ANNIS is forecast to net about $54K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in ANNIS receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Martin Oil Co. |
|---|---|
| Field | Flowers (Canyon Sand) |
| County | Stonewall County, Texas |
| RRC district | 7B |
| Lease number | 04268 |
| Wellbores | 11 |
| Reported production | 92,820 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $279K |
Where ANNIS 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.