BROOK N-13EJ

BROOK N-13EJ is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Pioneer Natural Res. USA, Inc. It has 1 wellbore on file with the Commission. Reported production runs from March 2025 to August 2026, totalling 175,919 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 $47.6M, with roughly $10.6M 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 13,716 barrels a month. Its strongest month on the record we hold was August 2025, at 19,706 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 BROOK N-13EJ

Who operates BROOK N-13EJ?
BROOK N-13EJ is operated by Pioneer Natural Res. USA, Inc., Railroad Commission of Texas operator number 665748.
Where is BROOK N-13EJ?
BROOK N-13EJ is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 23133.
Is BROOK N-13EJ still producing?
BROOK N-13EJ is currently producing. The most recent month of production reported to the Railroad Commission of Texas for BROOK N-13EJ is August 2026.
How much has BROOK N-13EJ produced?
BROOK N-13EJ has reported 175,919 barrels of oil (bbl) to the Railroad Commission of Texas between March 2025 and August 2026, from 1 wellbore.
How much is BROOK N-13EJ worth?
The remaining production from BROOK N-13EJ is estimated to be worth about $47.6M in total as of 26 August 2026, within a range of $39.0M to $56.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BROOK N-13EJ is a fraction of it. The estimate fits an Arps decline curve to the production BROOK N-13EJ has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for BROOK N-13EJ is an estimate of value, not an offer and not an appraisal.
How much income does BROOK N-13EJ generate in a year?
BROOK N-13EJ is forecast to net about $10.6M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in BROOK N-13EJ receives a fraction of that, set by the decimal interest printed on their check stub.

Lease record

BROOK N-13EJ as filed with the Railroad Commission of Texas
OperatorPioneer Natural Res. USA, Inc.
FieldSpraberry (Trend Area)
CountyUpton County, Texas
RRC district7C
Lease number23133
Wellbores1
Reported production175,919 bbl
First reported
Last reported
Estimated royalty value$47.6M

Where BROOK N-13EJ 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.