FRANSEN UNIT
FRANSEN UNIT is a Texas oil lease in Karnes County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 6 wellbores on file with the Commission. Reported production runs from June 2013 to August 2026, totalling 1,159,616 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 $797K, with roughly $533K 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 1,964 barrels a month, about 327 per wellbore. Its strongest month on the record we hold was December 2018, at 25,188 barrels. In our own backtest, leases producing at this rate are forecast to within about 17% 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 FRANSEN UNIT
- Who operates FRANSEN UNIT?
- FRANSEN UNIT is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is FRANSEN UNIT?
- FRANSEN UNIT is a Texas oil lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 10636.
- Is FRANSEN UNIT still producing?
- FRANSEN UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for FRANSEN UNIT is August 2026.
- How much has FRANSEN UNIT produced?
- FRANSEN UNIT has reported 1,159,616 barrels of oil (bbl) to the Railroad Commission of Texas between June 2013 and August 2026, from 6 wellbores.
- How much is FRANSEN UNIT worth?
- The remaining production from FRANSEN UNIT is estimated to be worth about $797K in total as of 26 August 2026, within a range of $661K to $932K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in FRANSEN UNIT is a fraction of it. The estimate fits an Arps decline curve to the production FRANSEN UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for FRANSEN UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does FRANSEN UNIT generate in a year?
- FRANSEN UNIT is forecast to net about $533K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in FRANSEN UNIT 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-2) |
| County | Karnes County, Texas |
| RRC district | 02 |
| Lease number | 10636 |
| Wellbores | 6 |
| Reported production | 1,159,616 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $797K |
Where FRANSEN UNIT 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.