SPRENCEL-PECK UNIT
SPRENCEL-PECK UNIT is a Texas oil lease in Karnes County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 7 wellbores on file with the Commission. Reported production runs from January 2012 to August 2026, totalling 1,437,411 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 $5.0M, with roughly $1.3M 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 1,925 barrels a month, about 275 per wellbore. Its strongest month on the record we hold was May 2016, at 12,841 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 SPRENCEL-PECK UNIT
- Who operates SPRENCEL-PECK UNIT?
- SPRENCEL-PECK UNIT is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is SPRENCEL-PECK UNIT?
- SPRENCEL-PECK UNIT is a Texas oil lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 09900.
- Is SPRENCEL-PECK UNIT still producing?
- SPRENCEL-PECK UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SPRENCEL-PECK UNIT is August 2026.
- How much has SPRENCEL-PECK UNIT produced?
- SPRENCEL-PECK UNIT has reported 1,437,411 barrels of oil (bbl) to the Railroad Commission of Texas between January 2012 and August 2026, from 7 wellbores.
- How much is SPRENCEL-PECK UNIT worth?
- The remaining production from SPRENCEL-PECK UNIT is estimated to be worth about $5.0M in total as of 26 August 2026, within a range of $4.2M to $5.9M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SPRENCEL-PECK UNIT is a fraction of it. The estimate fits an Arps decline curve to the production SPRENCEL-PECK UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SPRENCEL-PECK UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does SPRENCEL-PECK UNIT generate in a year?
- SPRENCEL-PECK UNIT is forecast to net about $1.3M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in SPRENCEL-PECK UNIT 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 | 09900 |
| Wellbores | 7 |
| Reported production | 1,437,411 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $5.0M |
Where SPRENCEL-PECK UNIT 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.