CASTLEBERRY

Oil · District 06 · Lease #12569

Operator: SONAT EXPLORATION COMPANY -TYLER

Cum Oil

7k BBL

Cum Gas

201k MCF

casinghead

Wells

1

Production

1993-01 — 2003-08

Peak Month

1996-03

Production History

Cum Oil: 6,732 BBL Cum Gas: 200,870 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

105 BBL/mo

Di (annual)

22.6%

b-factor

0.0

EUR

5,528 BBL

R-squared

0.396

type

exponential

Operator History (from monthly production reports)

2001-02 — 2003-12 SAMSON LONE STAR LP 35 mo
1999-06 — 2001-01 GRUY PETROLEUM MANAGEMENT CO. 20 mo
1998-02 — 1999-05 MASS ENERGY, INC 16 mo
1994-06 — 1998-01 SONAT EXPLORATION COMPANY -TYLER 44 mo
1993-01 — 1994-05 MACHIN & ASSOCIATES, INC. 17 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3SAMSON LONE STAR LP17,9001988-06-09