FOSTER UNIT AC
FOSTER UNIT AC is a Texas gas lease in Karnes County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 1 wellbore on file with the Commission. Reported production runs from January 2016 to August 2026, totalling 1,257,328 thousand cubic feet. 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 $883K, with roughly $177K 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 1,998 thousand cubic feet a month. Its strongest month on the record we hold was May 2016, at 55,393 thousand cubic feet. 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 FOSTER UNIT AC
- Who operates FOSTER UNIT AC?
- FOSTER UNIT AC is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is FOSTER UNIT AC?
- FOSTER UNIT AC is a Texas gas lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 280471.
- Is FOSTER UNIT AC still producing?
- FOSTER UNIT AC is currently producing. The most recent month of production reported to the Railroad Commission of Texas for FOSTER UNIT AC is August 2026.
- How much has FOSTER UNIT AC produced?
- FOSTER UNIT AC has reported 1,257,328 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 2016 and August 2026, from 1 wellbore.
- How much is FOSTER UNIT AC worth?
- The remaining production from FOSTER UNIT AC is estimated to be worth about $883K in total as of 26 August 2026, within a range of $732K to $1.0M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in FOSTER UNIT AC is a fraction of it. The estimate fits an Arps decline curve to the production FOSTER UNIT AC has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for FOSTER UNIT AC is an estimate of value, not an offer and not an appraisal.
- How much income does FOSTER UNIT AC generate in a year?
- FOSTER UNIT AC is forecast to net about $177K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in FOSTER UNIT AC receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Marathon Oil Ef LLC |
|---|---|
| Field | Sugarkane (Austin Chalk) |
| County | Karnes County, Texas |
| RRC district | 02 |
| Lease number | 280471 |
| Wellbores | 1 |
| Reported production | 1,257,328 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $883K |
Where FOSTER UNIT AC 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.