BARNHART (EF)-HFS SA1
BARNHART (EF)-HFS SA1 is a Texas oil lease in Gonzales County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 1 wellbore on file with the Commission. Reported production runs from March 2025 to August 2026, totalling 81,938 barrels. The lease is intermittent. 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 $375K, with roughly $381K 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 6,614 barrels a month. Its strongest month on the record we hold was October 2025, at 17,192 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 BARNHART (EF)-HFS SA1
- Who operates BARNHART (EF)-HFS SA1?
- BARNHART (EF)-HFS SA1 is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is BARNHART (EF)-HFS SA1?
- BARNHART (EF)-HFS SA1 is a Texas oil lease in Gonzales County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 13128.
- Is BARNHART (EF)-HFS SA1 still producing?
- BARNHART (EF)-HFS SA1 is intermittent. The most recent month of production reported to the Railroad Commission of Texas for BARNHART (EF)-HFS SA1 is August 2026.
- How much has BARNHART (EF)-HFS SA1 produced?
- BARNHART (EF)-HFS SA1 has reported 81,938 barrels of oil (bbl) to the Railroad Commission of Texas between March 2025 and August 2026, from 1 wellbore.
- How much is BARNHART (EF)-HFS SA1 worth?
- The remaining production from BARNHART (EF)-HFS SA1 is estimated to be worth about $375K in total as of 27 August 2026, within a range of $312K to $439K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BARNHART (EF)-HFS SA1 is a fraction of it. The estimate fits an Arps decline curve to the production BARNHART (EF)-HFS SA1 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for BARNHART (EF)-HFS SA1 is an estimate of value, not an offer and not an appraisal.
- How much income does BARNHART (EF)-HFS SA1 generate in a year?
- BARNHART (EF)-HFS SA1 is forecast to net about $381K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in BARNHART (EF)-HFS SA1 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 | Gonzales County, Texas |
| RRC district | 02 |
| Lease number | 13128 |
| Wellbores | 1 |
| Reported production | 81,938 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $375K |
Where BARNHART (EF)-HFS SA1 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.