SOUTHWEST TEXAS CORPORATION

Oil · District 04 · Lease #8905

Operator: WAGNER OIL COMPANY

Cum Oil

11k BBL

Cum Gas

120 MCF

casinghead

Wells

4

Production

1993-01 — 2007-12

Peak Month

1996-12

Production History

Cum Oil: 11,291 BBL Cum Gas: 120 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

342 BBL/mo

Di (annual)

64.8%

b-factor

0.5

EUR

11,942 BBL

R-squared

0.756

type

hyperbolic

Operator History (from monthly production reports)

2015-02 — 2016-09 WAGNER OIL COMPANY 20 mo
2008-03 — 2015-01 ARRIOLA OPERATING & CONSLTG INC. 83 mo
2006-10 — 2008-02 PETROGAS OPERATING CORPORATION 17 mo
1993-03 — 2006-09 KOSAREK, CHARLIE 163 mo
1993-01 — 1993-02 MARTIN, GLEN A. 2 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
802KOSAREK CHARLIE24,3621997-01-28
12WAGNER OIL COMPANY14,4061981-06-25
17WAGNER OIL COMPANY15,7501978-01-30
13242-131-31982WAGNER OIL COMPANY------