TURNBULL UNIT A-E SA2
TURNBULL UNIT A-E SA2 is a Texas oil 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 August 2023 to August 2026, totalling 133,218 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 $3.4M, with roughly $1.1M 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 2,034 barrels a month. Its strongest month on the record we hold was March 2024, at 22,661 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 TURNBULL UNIT A-E SA2
- Who operates TURNBULL UNIT A-E SA2?
- TURNBULL UNIT A-E SA2 is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is TURNBULL UNIT A-E SA2?
- TURNBULL UNIT A-E SA2 is a Texas oil lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 12689.
- Is TURNBULL UNIT A-E SA2 still producing?
- TURNBULL UNIT A-E SA2 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for TURNBULL UNIT A-E SA2 is August 2026.
- How much has TURNBULL UNIT A-E SA2 produced?
- TURNBULL UNIT A-E SA2 has reported 133,218 barrels of oil (bbl) to the Railroad Commission of Texas between August 2023 and August 2026, from 1 wellbore.
- How much is TURNBULL UNIT A-E SA2 worth?
- The remaining production from TURNBULL UNIT A-E SA2 is estimated to be worth about $3.4M in total as of 27 August 2026, within a range of $2.8M to $4.0M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in TURNBULL UNIT A-E SA2 is a fraction of it. The estimate fits an Arps decline curve to the production TURNBULL UNIT A-E SA2 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for TURNBULL UNIT A-E SA2 is an estimate of value, not an offer and not an appraisal.
- How much income does TURNBULL UNIT A-E SA2 generate in a year?
- TURNBULL UNIT A-E SA2 is forecast to net about $1.1M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in TURNBULL UNIT A-E SA2 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 | 12689 |
| Wellbores | 1 |
| Reported production | 133,218 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $3.4M |
Where TURNBULL UNIT A-E SA2 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.