DOROTHY

Oil · District 03 · Lease #15167

Operator: TEXAS VANGUARD OIL COMPANY

Cum Oil

22k BBL

Cum Gas

268k MCF

casinghead

Wells

1

Production

1993-01 — 2009-08

Peak Month

1994-10

Production History

Cum Oil: 22,419 BBL Cum Gas: 268,025 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,288 BBL/mo

Di (annual)

99.3%

b-factor

0.2

EUR

19,409 BBL

R-squared

0.542

type

hyperbolic

Operator History (from monthly production reports)

2004-01 — 2009-11 TEXAS VANGUARD OIL COMPANY 71 mo
1993-01 — 2003-12 SHA-JAM OPERATING CORP. 132 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1TEXAS VANGUARD OIL COMPANY19,2001980-12-16