MIDDLE MCCOWEN
MIDDLE MCCOWEN is a Texas oil lease in Atascosa County, Railroad Commission district 01, operated by Marathon Oil Ef LLC. It has 125 wellbores on file with the Commission. Reported production runs from August 2011 to August 2026, totalling 30,621,785 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 $713.7M, with roughly $189.4M 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 356,818 barrels a month, about 2,855 per wellbore. Its strongest month on the record we hold was June 2024, at 818,696 barrels. In our own backtest, leases producing at this rate are forecast to within about 18% 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 MIDDLE MCCOWEN
- Who operates MIDDLE MCCOWEN?
- MIDDLE MCCOWEN is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is MIDDLE MCCOWEN?
- MIDDLE MCCOWEN is a Texas oil lease in Atascosa County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 15638.
- Is MIDDLE MCCOWEN still producing?
- MIDDLE MCCOWEN is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MIDDLE MCCOWEN is August 2026.
- How much has MIDDLE MCCOWEN produced?
- MIDDLE MCCOWEN has reported 30,621,785 barrels of oil (bbl) to the Railroad Commission of Texas between August 2011 and August 2026, from 125 wellbores.
- How much is MIDDLE MCCOWEN worth?
- The remaining production from MIDDLE MCCOWEN is estimated to be worth about $713.7M in total as of 27 August 2026, within a range of $585.3M to $842.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MIDDLE MCCOWEN is a fraction of it. The estimate fits an Arps decline curve to the production MIDDLE MCCOWEN has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MIDDLE MCCOWEN is an estimate of value, not an offer and not an appraisal.
- How much income does MIDDLE MCCOWEN generate in a year?
- MIDDLE MCCOWEN is forecast to net about $189.4M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in MIDDLE MCCOWEN 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 | Atascosa County, Texas |
| RRC district | 01 |
| Lease number | 15638 |
| Wellbores | 125 |
| Reported production | 30,621,785 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $713.7M |
Where MIDDLE MCCOWEN 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.