MATTIE
MATTIE is a Texas oil lease in Andrews County, Railroad Commission district 08, operated by Summit Petroleum LLC. It has 3 wellbores on file with the Commission. Reported production runs from October 2010 to August 2026, totalling 97,371 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 $612K, with roughly $116K 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 169 barrels a month, about 56 per wellbore. Its strongest month on the record we hold was February 2020, at 545 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 MATTIE
- Who operates MATTIE?
- MATTIE is operated by Summit Petroleum LLC, Railroad Commission of Texas operator number 829221.
- Where is MATTIE?
- MATTIE is a Texas oil lease in Andrews County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 40566.
- Is MATTIE still producing?
- MATTIE is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MATTIE is August 2026.
- How much has MATTIE produced?
- MATTIE has reported 97,371 barrels of oil (bbl) to the Railroad Commission of Texas between October 2010 and August 2026, from 3 wellbores.
- How much is MATTIE worth?
- The remaining production from MATTIE is estimated to be worth about $612K in total as of 26 August 2026, within a range of $478K to $747K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MATTIE is a fraction of it. The estimate fits an Arps decline curve to the production MATTIE has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MATTIE is an estimate of value, not an offer and not an appraisal.
- How much income does MATTIE generate in a year?
- MATTIE is forecast to net about $116K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MATTIE receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Summit Petroleum LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Andrews County, Texas |
| RRC district | 08 |
| Lease number | 40566 |
| Wellbores | 3 |
| Reported production | 97,371 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $612K |
Where MATTIE 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.