WINDOWPANE 4-33 UNIT 1

WINDOWPANE 4-33 UNIT 1 is a Texas oil lease in Midland County, Railroad Commission district 08, operated by Endeavor Energy Resources L.P. It has 7 wellbores on file with the Commission. Reported production runs from June 2018 to August 2026, totalling 3,037,388 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 $35.2M, with roughly $9.9M 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 13,307 barrels a month, about 1,901 per wellbore. Its strongest month on the record we hold was December 2021, at 140,108 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 WINDOWPANE 4-33 UNIT 1

Who operates WINDOWPANE 4-33 UNIT 1?: WINDOWPANE 4-33 UNIT 1 is operated by Endeavor Energy Resources L.P., Railroad Commission of Texas operator number 251726.
Where is WINDOWPANE 4-33 UNIT 1?: WINDOWPANE 4-33 UNIT 1 is a Texas oil lease in Midland County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 50533.
Is WINDOWPANE 4-33 UNIT 1 still producing?: WINDOWPANE 4-33 UNIT 1 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for WINDOWPANE 4-33 UNIT 1 is August 2026.
How much has WINDOWPANE 4-33 UNIT 1 produced?: WINDOWPANE 4-33 UNIT 1 has reported 3,037,388 barrels of oil (bbl) to the Railroad Commission of Texas between June 2018 and August 2026, from 7 wellbores.
How much is WINDOWPANE 4-33 UNIT 1 worth?: The remaining production from WINDOWPANE 4-33 UNIT 1 is estimated to be worth about $35.2M in total as of 26 August 2026, within a range of $28.9M to $41.6M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WINDOWPANE 4-33 UNIT 1 is a fraction of it. The estimate fits an Arps decline curve to the production WINDOWPANE 4-33 UNIT 1 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for WINDOWPANE 4-33 UNIT 1 is an estimate of value, not an offer and not an appraisal.
How much income does WINDOWPANE 4-33 UNIT 1 generate in a year?: WINDOWPANE 4-33 UNIT 1 is forecast to net about $9.9M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in WINDOWPANE 4-33 UNIT 1 receives a fraction of that, set by the decimal interest printed on their check stub.

Lease record

WINDOWPANE 4-33 UNIT 1 as filed with the Railroad Commission of Texas
Operator	Endeavor Energy Resources L.P.
Field	Spraberry (Trend Area)
County	Midland County, Texas
RRC district	08
Lease number	50533
Wellbores	7
Reported production	3,037,388 bbl
First reported	June 2018
Last reported	August 2026
Estimated royalty value	$35.2M

Where WINDOWPANE 4-33 UNIT 1 sits

Source: Railroad Commission of Texas lease production records, complete through August 2026. Figures on this page were computed on 26 August 2026.

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.