J-HERMANN E - BIG OAK A SA B
J-HERMANN E - BIG OAK A SA B is a Texas oil lease in De Witt County, Railroad Commission district 02, operated by Devon Energy Production Co, L.P. It has 1 wellbore on file with the Commission. Reported production runs from October 2025 to August 2026, totalling 101,224 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 $42.3M, with roughly $7.8M 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 7,985 barrels a month. Its strongest month on the record we hold was April 2026, at 48,507 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 J-HERMANN E - BIG OAK A SA B
- Who operates J-HERMANN E - BIG OAK A SA B?
- J-HERMANN E - BIG OAK A SA B is operated by Devon Energy Production Co, L.P., Railroad Commission of Texas operator number 216378.
- Where is J-HERMANN E - BIG OAK A SA B?
- J-HERMANN E - BIG OAK A SA B is a Texas oil lease in De Witt County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 13191.
- Is J-HERMANN E - BIG OAK A SA B still producing?
- J-HERMANN E - BIG OAK A SA B is intermittent. The most recent month of production reported to the Railroad Commission of Texas for J-HERMANN E - BIG OAK A SA B is August 2026.
- How much has J-HERMANN E - BIG OAK A SA B produced?
- J-HERMANN E - BIG OAK A SA B has reported 101,224 barrels of oil (bbl) to the Railroad Commission of Texas between October 2025 and August 2026, from 1 wellbore.
- How much is J-HERMANN E - BIG OAK A SA B worth?
- The remaining production from J-HERMANN E - BIG OAK A SA B is estimated to be worth about $42.3M in total as of 27 August 2026, within a range of $35.1M to $49.5M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in J-HERMANN E - BIG OAK A SA B is a fraction of it. The estimate fits an Arps decline curve to the production J-HERMANN E - BIG OAK A SA B has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for J-HERMANN E - BIG OAK A SA B is an estimate of value, not an offer and not an appraisal.
- How much income does J-HERMANN E - BIG OAK A SA B generate in a year?
- J-HERMANN E - BIG OAK A SA B is forecast to net about $7.8M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in J-HERMANN E - BIG OAK A SA B receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Devon Energy Production Co, L.P. |
|---|---|
| Field | Eagleville (Eagle Ford-2) |
| County | De Witt County, Texas |
| RRC district | 02 |
| Lease number | 13191 |
| Wellbores | 1 |
| Reported production | 101,224 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $42.3M |
Where J-HERMANN E - BIG OAK A SA B 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.