MCMANUS
MCMANUS is a Texas oil lease in Irion County, Railroad Commission district 7C, operated by Cog Operating LLC. It has 2 wellbores on file with the Commission. Reported production runs from December 2014 to August 2026, totalling 50,076 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 $987K, with roughly $137K 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 46 barrels a month, about 23 per wellbore. Its strongest month on the record we hold was May 2016, at 752 barrels. In our own backtest, leases producing at this rate are forecast to within about 45% 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 MCMANUS
- Who operates MCMANUS?
- MCMANUS is operated by Cog Operating LLC, Railroad Commission of Texas operator number 166150.
- Where is MCMANUS?
- MCMANUS is a Texas oil lease in Irion County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 18736.
- Is MCMANUS still producing?
- MCMANUS is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MCMANUS is August 2026.
- How much has MCMANUS produced?
- MCMANUS has reported 50,076 barrels of oil (bbl) to the Railroad Commission of Texas between December 2014 and August 2026, from 2 wellbores.
- How much is MCMANUS worth?
- The remaining production from MCMANUS is estimated to be worth about $987K in total as of 26 August 2026, within a range of $543K to $1.4M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MCMANUS is a fraction of it. The estimate fits an Arps decline curve to the production MCMANUS has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MCMANUS is an estimate of value, not an offer and not an appraisal.
- How much income does MCMANUS generate in a year?
- MCMANUS is forecast to net about $137K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MCMANUS receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Cog Operating LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Irion County, Texas |
| RRC district | 7C |
| Lease number | 18736 |
| Wellbores | 2 |
| Reported production | 50,076 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $987K |
Where MCMANUS 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.