HUBBARD -18-

Oil · District 08 · Lease #25001

Operator: WJC, INC.

Cum Oil

8k BBL

Cum Gas

50k MCF

casinghead

Wells

2

Production

1993-01 — 1999-06

Peak Month

1995-06

Production History

Cum Oil: 8,159 BBL Cum Gas: 49,917 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

490 BBL/mo

Di (annual)

456.6%

b-factor

0.0

EUR

1,301 BBL

R-squared

0.618

type

exponential

Operator History (from monthly production reports)

2000-09 — 2000-12 ENDEAVOR ENERGY RESOURCES L.P. 4 mo
1998-01 — 2000-08 STEPHENS, AUTRY C. 32 mo
1995-04 — 1997-12 WJC, INC. 33 mo
1993-01 — 1995-03 SOUTHWEST ROYALTIES, INC. 27 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ENDEAVOR ENERGY RESOURCES L.P.210,4502000-06-09
1ENDEAVOR ENERGY RESOURCES L.P.211,0001999-02-18