CHEST THUMPER 1-5 UNIT 1

CHEST THUMPER 1-5 UNIT 1 is a Texas oil lease in Martin County, Railroad Commission district 08, operated by Endeavor Energy Resources L.P. It has 12 wellbores on file with the Commission. Reported production runs from August 2023 to August 2026, totalling 3,134,885 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 $32.2M, with roughly $17.4M 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 47,895 barrels a month, about 3,991 per wellbore. Its strongest month on the record we hold was May 2024, at 352,059 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 CHEST THUMPER 1-5 UNIT 1

Who operates CHEST THUMPER 1-5 UNIT 1?
CHEST THUMPER 1-5 UNIT 1 is operated by Endeavor Energy Resources L.P., Railroad Commission of Texas operator number 251726.
Where is CHEST THUMPER 1-5 UNIT 1?
CHEST THUMPER 1-5 UNIT 1 is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 60617.
Is CHEST THUMPER 1-5 UNIT 1 still producing?
CHEST THUMPER 1-5 UNIT 1 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for CHEST THUMPER 1-5 UNIT 1 is August 2026.
How much has CHEST THUMPER 1-5 UNIT 1 produced?
CHEST THUMPER 1-5 UNIT 1 has reported 3,134,885 barrels of oil (bbl) to the Railroad Commission of Texas between August 2023 and August 2026, from 12 wellbores.
How much is CHEST THUMPER 1-5 UNIT 1 worth?
The remaining production from CHEST THUMPER 1-5 UNIT 1 is estimated to be worth about $32.2M in total as of 27 August 2026, within a range of $26.4M to $38.0M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in CHEST THUMPER 1-5 UNIT 1 is a fraction of it. The estimate fits an Arps decline curve to the production CHEST THUMPER 1-5 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 CHEST THUMPER 1-5 UNIT 1 is an estimate of value, not an offer and not an appraisal.
How much income does CHEST THUMPER 1-5 UNIT 1 generate in a year?
CHEST THUMPER 1-5 UNIT 1 is forecast to net about $17.4M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in CHEST THUMPER 1-5 UNIT 1 receives a fraction of that, set by the decimal interest printed on their check stub.

Lease record

CHEST THUMPER 1-5 UNIT 1 as filed with the Railroad Commission of Texas
OperatorEndeavor Energy Resources L.P.
FieldSpraberry (Trend Area)
CountyMartin County, Texas
RRC district08
Lease number60617
Wellbores12
Reported production3,134,885 bbl
First reported
Last reported
Estimated royalty value$32.2M

Where CHEST THUMPER 1-5 UNIT 1 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.