SOUTHWEST TEXAS CORP.

SOUTHWEST TEXAS CORP. is a Texas oil lease in Duval County, Railroad Commission district 04, operated by Kosarek, Charlie. It has 4 wellbores on file with the Commission. Reported production runs from January 1993 to September 2016, totalling 4,778 barrels. The lease is not currently producing. Its strongest month on the record we hold was October 2006, at 14 barrels.

Key facts about SOUTHWEST TEXAS CORP.

Who operates SOUTHWEST TEXAS CORP.?: SOUTHWEST TEXAS CORP. is operated by Kosarek, Charlie, Railroad Commission of Texas operator number 475749.
Where is SOUTHWEST TEXAS CORP.?: SOUTHWEST TEXAS CORP. is a Texas oil lease in Duval County, Texas, in Railroad Commission district 04. Its Railroad Commission lease number is 09027.
Is SOUTHWEST TEXAS CORP. still producing?: SOUTHWEST TEXAS CORP. is not currently producing. The most recent month of production reported to the Railroad Commission of Texas for SOUTHWEST TEXAS CORP. is September 2016.
How much has SOUTHWEST TEXAS CORP. produced?: SOUTHWEST TEXAS CORP. has reported 4,778 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and September 2016, from 4 wellbores.

Lease record

SOUTHWEST TEXAS CORP. as filed with the Railroad Commission of Texas
Operator	Kosarek, Charlie
Field	Longhorn, South (4200)
County	Duval County, Texas
RRC district	04
Lease number	09027
Wellbores	4
Reported production	4,778 bbl
First reported	January 1993
Last reported	September 2016

Where SOUTHWEST TEXAS CORP. sits

Source: Railroad Commission of Texas lease production records, complete through September 2016. Figures on this page were computed on 27 August 2026.

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.