MANN50

MANN50 is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Henry Petroleum LP. It has 2 wellbores on file with the Commission. Reported production runs from June 2007 to August 2026, totalling 91,687 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 $312K, with roughly $59K 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 58 barrels a month, about 29 per wellbore. Its strongest month on the record we hold was March 2023, at 813 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 MANN50

Who operates MANN50?
MANN50 is operated by Henry Petroleum LP, Railroad Commission of Texas operator number 378642.
Where is MANN50?
MANN50 is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 16308.
Is MANN50 still producing?
MANN50 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MANN50 is August 2026.
How much has MANN50 produced?
MANN50 has reported 91,687 barrels of oil (bbl) to the Railroad Commission of Texas between June 2007 and August 2026, from 2 wellbores.
How much is MANN50 worth?
The remaining production from MANN50 is estimated to be worth about $312K in total as of 27 August 2026, within a range of $172K to $453K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MANN50 is a fraction of it. The estimate fits an Arps decline curve to the production MANN50 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MANN50 is an estimate of value, not an offer and not an appraisal.
How much income does MANN50 generate in a year?
MANN50 is forecast to net about $59K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in MANN50 receives a fraction of that, set by the decimal interest printed on their check stub.

Lease record

MANN50 as filed with the Railroad Commission of Texas
OperatorHenry Petroleum LP
FieldSpraberry (Trend Area)
CountyUpton County, Texas
RRC district7C
Lease number16308
Wellbores2
Reported production91,687 bbl
First reported
Last reported
Estimated royalty value$312K

Where MANN50 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.