CHAPMAN-ROGERS UNIT
CHAPMAN-ROGERS UNIT is a Texas oil lease in Karnes County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 8 wellbores on file with the Commission. Reported production runs from September 2011 to August 2026, totalling 1,497,959 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 $720K, with roughly $432K 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 1,456 barrels a month, about 182 per wellbore. Its strongest month on the record we hold was May 2016, at 21,909 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 CHAPMAN-ROGERS UNIT
- Who operates CHAPMAN-ROGERS UNIT?
- CHAPMAN-ROGERS UNIT is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is CHAPMAN-ROGERS UNIT?
- CHAPMAN-ROGERS UNIT is a Texas oil lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 09809.
- Is CHAPMAN-ROGERS UNIT still producing?
- CHAPMAN-ROGERS UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for CHAPMAN-ROGERS UNIT is August 2026.
- How much has CHAPMAN-ROGERS UNIT produced?
- CHAPMAN-ROGERS UNIT has reported 1,497,959 barrels of oil (bbl) to the Railroad Commission of Texas between September 2011 and August 2026, from 8 wellbores.
- How much is CHAPMAN-ROGERS UNIT worth?
- The remaining production from CHAPMAN-ROGERS UNIT is estimated to be worth about $720K in total as of 27 August 2026, within a range of $598K to $843K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in CHAPMAN-ROGERS UNIT is a fraction of it. The estimate fits an Arps decline curve to the production CHAPMAN-ROGERS UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for CHAPMAN-ROGERS UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does CHAPMAN-ROGERS UNIT generate in a year?
- CHAPMAN-ROGERS UNIT is forecast to net about $432K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in CHAPMAN-ROGERS 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 | 09809 |
| Wellbores | 8 |
| Reported production | 1,497,959 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $720K |
Where CHAPMAN-ROGERS 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.