SOUTHWEST TEXAS CORP

Oil · District 04 · Lease #13172

Operator: WAGNER OIL COMPANY

Fields: LONGHORN, SOUTH

Cum Oil

34k BBL

Cum Gas

4k MCF

casinghead

Wells

1

Production

2003-09 — 2015-02

Peak Month

2003-09

Production History

Cum Oil: 34,393 BBL Cum Gas: 4,016 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,231 BBL/mo

Di (annual)

59.7%

b-factor

0.3

EUR

35,145 BBL

R-squared

0.867

type

hyperbolic

Operator History (from monthly production reports)

2015-02 — 2023-12 WAGNER OIL COMPANY 107 mo

2008-03 — 2015-01 ARRIOLA OPERATING & CONSLTG INC. 83 mo

2006-10 — 2008-02 PETROGAS OPERATING CORPORATION 17 mo

2003-09 — 2006-09 DUGGER, GLENN 37 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
236	42-131-38355	KOSAREK CHARLIE	2	6,600	2001-01-23