SIENKIEWICZ UNIT

SIENKIEWICZ UNIT is a Texas oil lease in Karnes County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 6 wellbores on file with the Commission. Reported production runs from November 2012 to August 2026, totalling 1,059,925 barrels. The lease is shut in. Over the last twelve months on file it averaged 857 barrels a month, about 143 per wellbore. Its strongest month on the record we hold was May 2016, at 10,481 barrels.

Key facts about SIENKIEWICZ UNIT

Who operates SIENKIEWICZ UNIT?
SIENKIEWICZ UNIT is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
Where is SIENKIEWICZ UNIT?
SIENKIEWICZ UNIT is a Texas oil lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 10797.
Is SIENKIEWICZ UNIT still producing?
SIENKIEWICZ UNIT is shut in. The most recent month of production reported to the Railroad Commission of Texas for SIENKIEWICZ UNIT is August 2026.
How much has SIENKIEWICZ UNIT produced?
SIENKIEWICZ UNIT has reported 1,059,925 barrels of oil (bbl) to the Railroad Commission of Texas between November 2012 and August 2026, from 6 wellbores.

Lease record

SIENKIEWICZ UNIT as filed with the Railroad Commission of Texas
OperatorMarathon Oil Ef LLC
FieldSugarkane (Eagle Ford)
CountyKarnes County, Texas
RRC district02
Lease number10797
Wellbores6
Reported production1,059,925 bbl
First reported
Last reported

Where SIENKIEWICZ UNIT 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.