MIDLAND SECURITIES

Oil · District 03 · Lease #21590

Operator: WHITE OAK OPERATING COMPANY LLC

Fields: RICH RANCH, N. (VICKSBURG)

Cum Oil

30k BBL

Cum Gas

22k MCF

casinghead

Wells

1

Production

1993-01 — 2000-07

Peak Month

1993-01

Production History

Cum Oil: 30,090 BBL Cum Gas: 22,106 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,553 BBL/mo

Di (annual)

95.3%

b-factor

0.0

EUR

32,144 BBL

R-squared

0.795

type

exponential

Operator History (from monthly production reports)

2015-11 — 2026-07 WHITE OAK OPERATING COMPANY LLC 129 mo

2010-06 — 2015-10 MILAGRO EXPLORATION, LLC 65 mo

2004-11 — 2010-05 TEXCAL ENERGY (GP) LLC 67 mo

1998-04 — 2004-10 TRI-UNION DEVELOPMENT CORP. 79 mo

1995-03 — 1998-03 APACHE CORPORATION 37 mo

1993-01 — 1995-02 TEXACO E & P INC. 26 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-291-31919	TEXACO E & P INC.	1	8,900	1985-06-21