TOM-SMITH UNIT C
TOM-SMITH UNIT C is a Texas oil lease in Atascosa County, Railroad Commission district 01, operated by Marathon Oil Ef LLC. It has 5 wellbores on file with the Commission. Reported production runs from September 2021 to August 2026, totalling 672,777 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 $15.5M, with roughly $5.7M 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 13,041 barrels a month, about 2,608 per wellbore. Its strongest month on the record we hold was September 2024, at 81,916 barrels. In our own backtest, leases producing at this rate are forecast to within about 18% 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 TOM-SMITH UNIT C
- Who operates TOM-SMITH UNIT C?
- TOM-SMITH UNIT C is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is TOM-SMITH UNIT C?
- TOM-SMITH UNIT C is a Texas oil lease in Atascosa County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 20500.
- Is TOM-SMITH UNIT C still producing?
- TOM-SMITH UNIT C is currently producing. The most recent month of production reported to the Railroad Commission of Texas for TOM-SMITH UNIT C is August 2026.
- How much has TOM-SMITH UNIT C produced?
- TOM-SMITH UNIT C has reported 672,777 barrels of oil (bbl) to the Railroad Commission of Texas between September 2021 and August 2026, from 5 wellbores.
- How much is TOM-SMITH UNIT C worth?
- The remaining production from TOM-SMITH UNIT C is estimated to be worth about $15.5M in total as of 26 August 2026, within a range of $12.7M to $18.3M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in TOM-SMITH UNIT C is a fraction of it. The estimate fits an Arps decline curve to the production TOM-SMITH UNIT C has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for TOM-SMITH UNIT C is an estimate of value, not an offer and not an appraisal.
- How much income does TOM-SMITH UNIT C generate in a year?
- TOM-SMITH UNIT C is forecast to net about $5.7M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in TOM-SMITH UNIT C receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Marathon Oil Ef LLC |
|---|---|
| Field | Eagleville (Eagle Ford-1) |
| County | Atascosa County, Texas |
| RRC district | 01 |
| Lease number | 20500 |
| Wellbores | 5 |
| Reported production | 672,777 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $15.5M |
Where TOM-SMITH UNIT C 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.