BROOK UNIT O-1C

BROOK UNIT O-1C 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 September 2025 to August 2026, totalling 47,973 barrels. The lease is intermittent. Fitting a decline curve to that history and pricing the remaining production at today's forward curve values a standard royalty share at about $20K, with roughly $8K expected over the next twelve months. Over the last twelve months on file it averaged 3,037 barrels a month. Its strongest month on the record we hold was April 2026, at 18,436 barrels. In our own backtest, leases producing at this rate are forecast to within about 17% 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.

OperatorPioneer Natural Res. USA, Inc.
FieldSpraberry (Trend Area)
CountyUpton County, Texas
RRC district7C
Lease number23480
Wellbores1
Reported production47,973 bbl
First reportedSeptember 2025
Last reportedAugust 2026
Estimated royalty value$20K

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.