SWIZE MCFARLAND UNIT
SWIZE MCFARLAND UNIT is a Texas oil lease in Karnes County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 4 wellbores on file with the Commission. Reported production runs from December 2012 to August 2026, totalling 1,639,303 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 $19.8M, with roughly $4.6M 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 6,197 barrels a month, about 1,549 per wellbore. Its strongest month on the record we hold was March 2020, at 120,166 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 SWIZE MCFARLAND UNIT
- Who operates SWIZE MCFARLAND UNIT?
- SWIZE MCFARLAND UNIT is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is SWIZE MCFARLAND UNIT?
- SWIZE MCFARLAND UNIT is a Texas oil lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 10324.
- Is SWIZE MCFARLAND UNIT still producing?
- SWIZE MCFARLAND UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SWIZE MCFARLAND UNIT is August 2026.
- How much has SWIZE MCFARLAND UNIT produced?
- SWIZE MCFARLAND UNIT has reported 1,639,303 barrels of oil (bbl) to the Railroad Commission of Texas between December 2012 and August 2026, from 4 wellbores.
- How much is SWIZE MCFARLAND UNIT worth?
- The remaining production from SWIZE MCFARLAND UNIT is estimated to be worth about $19.8M in total as of 27 August 2026, within a range of $16.4M to $23.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SWIZE MCFARLAND UNIT is a fraction of it. The estimate fits an Arps decline curve to the production SWIZE MCFARLAND UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SWIZE MCFARLAND UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does SWIZE MCFARLAND UNIT generate in a year?
- SWIZE MCFARLAND UNIT is forecast to net about $4.6M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in SWIZE MCFARLAND 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 | 10324 |
| Wellbores | 4 |
| Reported production | 1,639,303 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $19.8M |
Where SWIZE MCFARLAND 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.