KARNES CITY SW UNIT
KARNES CITY SW UNIT is a Texas oil lease in Karnes County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 9 wellbores on file with the Commission. Reported production runs from December 2013 to August 2026, totalling 2,696,099 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 $1.0M, with roughly $756K 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 2,455 barrels a month, about 273 per wellbore. Its strongest month on the record we hold was June 2017, at 117,699 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 KARNES CITY SW UNIT
- Who operates KARNES CITY SW UNIT?
- KARNES CITY SW UNIT is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is KARNES CITY SW UNIT?
- KARNES CITY SW UNIT is a Texas oil lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 10724.
- Is KARNES CITY SW UNIT still producing?
- KARNES CITY SW UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for KARNES CITY SW UNIT is August 2026.
- How much has KARNES CITY SW UNIT produced?
- KARNES CITY SW UNIT has reported 2,696,099 barrels of oil (bbl) to the Railroad Commission of Texas between December 2013 and August 2026, from 9 wellbores.
- How much is KARNES CITY SW UNIT worth?
- The remaining production from KARNES CITY SW UNIT is estimated to be worth about $1.0M in total as of 27 August 2026, within a range of $857K to $1.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in KARNES CITY SW UNIT is a fraction of it. The estimate fits an Arps decline curve to the production KARNES CITY SW UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for KARNES CITY SW UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does KARNES CITY SW UNIT generate in a year?
- KARNES CITY SW UNIT is forecast to net about $756K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in KARNES CITY SW 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 | 10724 |
| Wellbores | 9 |
| Reported production | 2,696,099 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.0M |
Where KARNES CITY SW 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.