DUFF

DUFF is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Cox, John L. It has 3 wellbores on file with the Commission. Reported production runs from January 1993 to June 2025, totalling 49,442 barrels. The lease is not currently producing. Its strongest month on the record we hold was February 2021, at 1,089 barrels.

Key facts about DUFF

Who operates DUFF?
DUFF is operated by Cox, John L., Railroad Commission of Texas operator number 185980.
Where is DUFF?
DUFF is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 07417.
Is DUFF still producing?
DUFF is not currently producing. The most recent month of production reported to the Railroad Commission of Texas for DUFF is June 2025.
How much has DUFF produced?
DUFF has reported 49,442 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and June 2025, from 3 wellbores.

Lease record

DUFF as filed with the Railroad Commission of Texas
OperatorCox, John L.
FieldSpraberry (Trend Area)
CountyUpton County, Texas
RRC district7C
Lease number07417
Wellbores3
Reported production49,442 bbl
First reported
Last reported

Where DUFF 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.