DUSEK

Oil · District 03 · Lease #21839

Operator: SOUTHWEST RESOURCES, INC.

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

65k BBL

Cum Gas

780k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 64,569 BBL Cum Gas: 780,314 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,765 BBL/mo

Di (annual)

241.6%

b-factor

0.5

EUR

66,206 BBL

R-squared

0.625

type

hyperbolic

Operator History (from monthly production reports)

2008-07 — 2026-07 LEEXUS OIL LLC 217 mo

2008-02 — 2008-06 LEEXUS OIL & GAS L.L.P. 5 mo

2004-06 — 2008-01 SOUTHWEST RESOURCES, INC. 44 mo

2001-11 — 2004-05 HEP OIL COMPANY, LTD. 31 mo

1999-12 — 2001-10 BRAMMER SUPPLY, INC. 23 mo

1996-09 — 1999-11 NATIONAL ENERGY GROUP, INC. 39 mo

1993-01 — 1996-08 ALEXANDER ENERGY CORPORATION 44 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2H	42-149-30813	LEEXUS OIL LLC	2	15,600	1992-09-08