BARNHART (EF) D
BARNHART (EF) D is a Texas oil lease in Gonzales County, Railroad Commission district 01, operated by Marathon Oil Ef LLC. It has 8 wellbores on file with the Commission. Reported production runs from October 2013 to August 2026, totalling 1,057,077 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 $873K, with roughly $163K 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 804 barrels a month, about 101 per wellbore. Its strongest month on the record we hold was May 2016, at 13,534 barrels. In our own backtest, leases producing at this rate are forecast to within about 22% 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) D
- Who operates BARNHART (EF) D?
- BARNHART (EF) D is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is BARNHART (EF) D?
- BARNHART (EF) D is a Texas oil lease in Gonzales County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 17171.
- Is BARNHART (EF) D still producing?
- BARNHART (EF) D is currently producing. The most recent month of production reported to the Railroad Commission of Texas for BARNHART (EF) D is August 2026.
- How much has BARNHART (EF) D produced?
- BARNHART (EF) D has reported 1,057,077 barrels of oil (bbl) to the Railroad Commission of Texas between October 2013 and August 2026, from 8 wellbores.
- How much is BARNHART (EF) D worth?
- The remaining production from BARNHART (EF) D is estimated to be worth about $873K in total as of 27 August 2026, within a range of $681K to $1.1M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BARNHART (EF) D is a fraction of it. The estimate fits an Arps decline curve to the production BARNHART (EF) D 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) D is an estimate of value, not an offer and not an appraisal.
- How much income does BARNHART (EF) D generate in a year?
- BARNHART (EF) D is forecast to net about $163K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in BARNHART (EF) D 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-1) |
| County | Gonzales County, Texas |
| RRC district | 01 |
| Lease number | 17171 |
| Wellbores | 8 |
| Reported production | 1,057,077 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $873K |
Where BARNHART (EF) D 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.